Relevant bibliographies by topics / Limit state method

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Limit state method'

Author: Grafiati
Published: 2 June 2025
Last updated: 22 June 2025

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Journal articles on the topic "Limit state method"

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Chang, Li-Hua, Hou-Ping Deng, Li-Xia Tan, and David A. Jones. "Selection of Credit Limit Methods: The Comprehensive Limit Credit Method or the Line-state Limit Credit Method." Journal of Applied Sciences 13, no. 8 (2013): 1364–69. http://dx.doi.org/10.3923/jas.2013.1364.1369.

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Farooq, Ahmad, Uman Khalid, Junaid ur Rehman, and Hyundong Shin. "Robust Quantum State Tomography Method for Quantum Sensing." Sensors 22, no. 7 (2022): 2669. http://dx.doi.org/10.3390/s22072669.

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Reliable and efficient reconstruction of pure quantum states under the processing of noisy measurement data is a vital tool in fundamental and applied quantum information sciences owing to communication, sensing, and computing. Specifically, the purity of such reconstructed quantum systems is crucial in surpassing the classical shot-noise limit and achieving the Heisenberg limit, regarding the achievable precision in quantum sensing. However, the noisy reconstruction of such resourceful sensing probes limits the quantum advantage in precise quantum sensing. For this, we formulate a pure quantum state reconstruction method through eigenvalue decomposition. We show that the proposed method is robust against the depolarizing noise; it remains unaffected under high strength white noise and achieves quantum state reconstruction accuracy similar to the noiseless case.
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Perelmuter, Anatoly. "THE HISTORY OF THE LIMIT STATE DESIGN METHOD." International Journal for Computational Civil and Structural Engineering 17, no. 4 (2021): 134–45. http://dx.doi.org/10.22337/2587-9618-2021-17-4-134-145.

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This paper analyzes the 70-year history of development of the limit state design method (LSDM) focusing on the fundamentals of the design codes based on this method and considers proposals for improving the LSDM and its justification. It was also noted that the reaction of the system in any of its fixed states is not always sufficient to assess the reliability of the system, and therefore it is necessary to analyze the rate of loss of resistance of load-bearing structures. However, probabilistic considerations were not enough due to the lack of reliable statistical data in the area of extreme sections of the distribution curves and a number of other circumstances (features of control procedures, different behavior of the material in the structure and in the samples, etc.). This paper analyzes some fundamental issues that should be solved when developing the method for the nonlinear analysis.
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Imam Korabu. "Comparison between Limit State Method & Working Stress Method for R.C.C Structure." international journal of engineering technology and management sciences 7, no. 4 (2023): 56–59. http://dx.doi.org/10.46647/ijetms.2023.v07i04.012.

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Now a days R.C.C & steel structures are used in massive ways. Recently all the consultants are designed the R.C.C Structures by plastic method & its design by limit state method. The analysis & design of R.C.C buildings consists of beam, column, slabs & footings. The analysis & design of R.C.C Structures carried out by limit state method & working stress method. The sections obtained by limit state method should be comparing with sections obtained by working stress method to check the economy in design.
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R.N.MULANI, PROF.CHOUDHARIV.A, V.S.PATIL, et al. "COMPARISON AND DESIGN OF WATER TANK REST ON GROUND BY LSM AND WSM – A REVIEW." JournalNX - A Multidisciplinary Peer Reviewed Journal 3, no. 5 (2017): 79–83. https://doi.org/10.5281/zenodo.1446404.

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 In the new version of the IS 3370-2009 Code of Practice for concrete structures for the storage of liquids that has adopted the widely used limit state method. According to the provisions of the previous version of the Code (IS 3370-1965), design of water tanks is only allowed by the work effort method. The study was conducted to compare the design provisions of IS 3370 (1965) and IS 3370 (2009). In this study, a comparison of water design reservoirs using Stress Limiting Worker methods is performed. In order to carry out the comparative design of the study, the three types of water tanks set up a circular reservoir with a capacity of 500 kl, an elevated square reservoir of the tank with a capacity of 250 kl and a rectangle of groundwater 250 kl of its capacity. The quantities of materials were calculated for each problem. The results are presented as graphs and tables and noted that the state water tank design method is more economical since the amount of material required is less compared to the work effort method. https://journalnx.com/
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Minemoto, Mamoru, Makoto Kito, Yuzo Kajiwara, and Sigeru Matuoka. "Study on limit state design method for tunnel linings." Doboku Gakkai Ronbunshu, no. 523 (1995): 141–49. http://dx.doi.org/10.2208/jscej.1995.523_141.

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Xiang, Yanyong, and Srikanta Mishra. "Probabilistic Multiphase Flow Modeling Using the Limit-State Method." Ground Water 35, no. 5 (1997): 820–24. http://dx.doi.org/10.1111/j.1745-6584.1997.tb00150.x.

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Ouyang, Qi, Xiao Qian Chen, and Wen Yao. "Comparison of the Function Regression Method and Data Classification Method for Limit State Function Approximation." Advanced Materials Research 774-776 (September 2013): 1738–44. http://dx.doi.org/10.4028/www.scientific.net/amr.774-776.1738.

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To reduce the computational burden of the reliability analysis of complex engineering application, approximate method is always used to construct the surrogate model of the implicit limit state function. Since the limit state function is a classifier of the failure domain and safe domain, its approximation can be established by the function regression method and data classification method. In this paper, these two methods are tested to several limit state functions including linear function, highly nonlinear function, high dimensional function, series system and parallel system. Least squares support vector machines are used to construct the surrogate models. A detail comparison of function regression method and data classification method for limit state function approximation is given. The conclusions of this paper can give guidance for the engineers to choose an appropriate approximate method in the engineering applications.
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Yang, Zhiyong, Chengchuan Yin, Xueyou Li, Lin Wang, and Lei Zhang. "Influence of Limit State Function’s Form of Geotechnical Structures on Approximate Analytical Reliability Methods." Sustainability 15, no. 10 (2023): 8106. http://dx.doi.org/10.3390/su15108106.

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Approximate analytical methods have been frequently used in geotechnical engineering to estimate the reliability of geotechnical structures due to their efficiency and simplicity. The main spirit of these methods is using the moments of the limit state function to estimate the reliability index. However, the moments are strongly dependent on the form of the limit state function, resulting in the fact that these methods are sensitive to the form of limit state functions. This study aims to systematically explore how various equivalent forms of limit state functions affect the performance of several commonly used approximate analytical methods, including the first-order second-moment method, the first-order reliability method, and the point estimation method. The applicable conditions of these methods are illustrated through five typical geotechnical examples. The results indicate that the estimated accuracy for the first-order second-moment method and the point estimation method is affected by the form of the limit state functions. Although the form of the limit state function does not affect the accuracy of the first-order reliability method, it affects computational efficiency. The limit state functions with an equivalent logarithmic form are almost always favorable for the investigated examples and are thus recommended in practice.
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Číhal, Michal, Jaromír Kabeláč, Michael Konečný, and Lukáš Juříček. "Serviceability Limit State Evaluation in Discontinuity Regions." Solid State Phenomena 292 (June 2019): 203–9. http://dx.doi.org/10.4028/www.scientific.net/ssp.292.203.

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Discontinuity Region Design method was recently extended to allow assessment of serviceability limit states (SLS) for regions of concrete structural members where the Bernoulli-Navier hypothesis does not hold, such as dapped ends, openings, frame corners, etc. The method uses material models which consider the impact of short- and long-term loading effects (creep) as well as the influence of tension stiffening, which are calculated from reinforcement ratios. The method can be used to perform assessment of stress limitation SLS as well as to calculate crack widths. Crack width calculations for both stabilized and non-stabilized cracks have been compared with real-world experiments. Calculations regarding deflection and strain in concrete and concrete rebars are compared with analytical calculations.
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Dissertations / Theses on the topic "Limit state method"

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Azizsoltani, Hamoon, and Hamoon Azizsoltani. "Risk Estimation of Nonlinear Time Domain Dynamic Analyses of Large Systems." Diss., The University of Arizona, 2017. http://hdl.handle.net/10150/624545.

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A novel concept of multiple deterministic analyses is proposed to design safer and more damage-tolerant structures, particularly when excited by dynamic including seismic loading in time domain. Since the presence of numerous sources of uncertainty cannot be avoided or overlooked, the underlying risk is estimated to compare design alternatives. To generate the implicit performance functions explicitly, the basic response surface method is significantly improved. Then, several surrogate models are proposed. The advanced factorial design and Kriging method are used as the major building blocks. Using these basic schemes, seven alternatives are proposed. Accuracies of these schemes are verified using basic Monte Carlo simulations. After verifying all seven alternatives, the capabilities of the three most desirable schemes are compared using a case study. They correctly identified and correlated damaged states of structural elements in terms of probability of failure using only few hundreds of deterministic analyses. The modified Kriging method appears to be the best technique considering both efficiency and accuracy. Estimating the probability of failure, the post-Northridge seismic design criteria are found to be appropriate. After verifying the proposed method, a Site-Specific seismic safety assessment method for nonlinear structural systems is proposed to generate a suite of ground excitation time histories. The information of risk is used to design a structure more damage-tolerant. The proposed procedure is verified and showcased by estimating risks associated with three buildings designed by professional experts in the Los Angeles area satisfying the post-Northridge design criteria for the overall lateral deflection and inter-story drift. The accuracy of the estimated risk is again verified using the Monte Carlo simulation technique. In all cases, the probabilities of collapse are found to be less than 10% when excited by the risk-targeted maximum considered earthquake ground motion satisfying the intent of the code. The spread in the reliability indexes for each building for both limit states cannot be overlooked, indicating the significance of the frequency contents. The inter story drift is found to be more critical than the overall lateral displacement. The reliability indexes for both limit states are similar only for few cases. The author believes that the proposed methodology is an alternative to the classical random vibration and simulation approaches. The proposed site-specific seismic safety assessment procedure can be used by practicing engineers for routine applications. The proposed reliability methodology is not problem-specific. It is capable of handling systems with different levels of complexity and scalability, and it is robust enough for multi-disciplinary routine applications. In order to show the multi-disciplinary application of the proposed methodology, the probability of failure of lead-free solders in Ball Grid Array 225 surface-mount packaging for a given loading cycle is estimated. The accuracy of the proposed methodology is verified with the help of Monte Carlo simulation. After the verification, probability of failure versus loading cycles profile is calculated. Such a comprehensive study of its lifetime behavior and the corresponding reliability analyses can be useful for sensitive applications.
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Jamtsho, Lungten. "Performance load testing and structural adequacy evaluation of road bridge decks." Thesis, Queensland University of Technology, 2011. https://eprints.qut.edu.au/46822/1/Lungten_Jamtsho_Thesis.pdf.

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Many ageing road bridges, particularly timber bridges, require urgent improvement due to the demand imposed by the recent version of the Australian bridge loading code, AS 5100. As traffic volume plays a key role in the decision of budget allocations for bridge refurbishment/ replacement, many bridges in low volume traffic network remain in poor condition with axle load and/ or speed restrictions, thus disadvantaging many rural communities. This thesis examines an economical and environmentally sensible option of incorporating disused flat rail wagons (FRW) in the construction of bridges in low volume, high axle load road network. The constructability, economy and structural adequacy of the FRW road bridge is reported in the thesis with particular focus of a demonstration bridge commissioned in regional Queensland. The demonstration bridge comprises of a reinforced concrete slab (RCS) pavement resting on two FRWs with custom designed connection brackets at regular intervals along the span of the bridge. The FRW-RC bridge deck assembly is supported on elastomeric rubber pads resting on the abutment. As this type of bridge replacement technology is new and its structural design is not covered in the design standards, the in-service structural performance of the FRW bridge subjected to the high axle loadings prescribed in AS 5100 is examined through performance load testing. Both the static and the moving load tests are carried out using a fully laden commonly available three-axle tandem truck. The bridge deck is extensively strain gauged and displacement at several key locations is measured using linear variable displacement transducers (LVDTs). A high speed camera is used in the performance test and the digital image data are analysed using proprietary software to capture the locations of the wheel positions on the bridge span accurately. The wheel location is thus synchronised with the displacement and strain time series to infer the structural response of the FRW bridge. Field test data are used to calibrate a grillage model, developed for further analysis of the FRW bridge to various sets of high axle loads stipulated in the bridge design standard. Bridge behaviour predicted by the grillage model has exemplified that the live load stresses of the FRW bridge is significantly lower than the yield strength of steel and the deflections are well below the serviceability limit state set out in AS 5100. Based on the results reported in this thesis, it is concluded that the disused FRWs are competent to resist high axle loading prescribed in AS 5100 and are a viable alternative structural solution of bridge deck in the context of the low volume road networks.
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Turek, Jan. "Železobetonová základová vana administrativní budovy." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409781.

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The master’s thesis deals with a design of a reinforced concrete foundation of multi-storey office building. The basement of the building is an underground watertight structure. The design of foundations is a combination of a concrete slab and piles. Internal forces were analysed in RFEM software based on finite element method. The structural assessment of underground construction was performed according to ultimate and serviceability limit states. Due to watertight function of construction, the reinforcement was also designed according to non-force effect in early stage.
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Čoček, Jan. "Konstrukční řešení mechanismu napínací kladky zkušebního zařízení." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231728.

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The aim of this diploma thesis is the design of automatic tensioning device for regulating forces in driving belts of high-pressure pumps under long-term testing, in collaboration with Bosch Diesel s.r.o. in Jihlava. The paper describes the development of the mechatronic device, from the selection of components, going through the design phase of the automatic electronic device, up to mechanical design and prototype execution. An assessment is made of custom device based on the test in real operations and economic benefits for the client are evaluated in the conslusion.
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Obršlík, Petr. "Modelování a statická analýza stropní konstrukce v programu ANSYS." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226805.

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This thesis mainly deals with modeling and static analysis of the ceiling structure in the basic environment of ANSYS. The first part is focused on verifying correctness of the model most stressed parts of the structure with a simple hand-static calculation by the process of stress on a continuous beam. The main part is devoted to modeling composite structure, element types, specifying loads and boundary conditions by ANSYS FEM program. In the end, there are the results of stress and deflection presented, and the structure is evaluated at the ultimate limit state and serviceability limit state.
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Kudrna, Jan. "Návrh nosné konstrukce ŽB objektu garáží." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-239994.

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The diploma thesis deals with the design and assessment of reinforced concrete structure supporting two-storey building of the underground garage for cars. In the space above the garage is designed open area with public space. The project was designed especially outer water-impermeable construction method white bath and a base plate and a perimeter wall. The structure was designed as a comprehensive model. Computing analyzed by finite element method. All selected elements were assessed at the ultimate limit state and limit state, namely to limit state of cracking load and forced stress.
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Tesař, David. "Polyfunkční dům – železobetonová nosná konstrukce." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372121.

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The aim of the master‘s thesis is static and structural design of polyfunctional house. The load will be determined according to ČSN EN 1990. The finite element method will be used for the calculation of internal forces. The design will be dimensioned according to ČSN EN 1992. Text part, static calculation and shape and reinforcement drawings will form the output of this work.
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Bobek, Lukáš. "Dálniční estakáda přes široké údolí." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265377.

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The aim of this diploma thesis is to design and assess highway bridge. The structure is located on the D1 motorway section bridging a wide valley between the Slovak villages Doľany a Klčov. Three variants have been created – box girder bridge with transverse overhangs, a pair of girder bridge and a pair of box girder bridges. The various proposals were compared with each other. For the most valuable option is selected prestressed box girder bridge with transverse overhangs, which are supported by prefabricated concrete struts. The selected proposal was subsequently elaborated in detail, the load-bearing structure is analyzed using Scia Engineer 16. In calculating the internal forces is adjusted for the effects of construction methods, even as time-dependent analysis TDA. When designing the load-bearing structure it is considered the action of permanent load, also loading from transport and temperature. The structure is assessed for serviceability and ultimate limit states according to current standards. The bridge deck is built by incremental launching method. The principle of this method consists of building the segments in a casting yard located behind the bridge abutment. Each segment is matchcast against the previous one and prestressed to the section of structure already built. The whole superstructure is then jacked forward a distance equal to the length of this segment. This process is repeated until the bridge deck is in its final position. Chosen method of construction is very fast and efficient, to the country in the valley isn´t damage during construction.
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Čačaný, Matej. "Železobetonová nosná konstrukce administrativní budovy." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265326.

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The diploma thesis is focused on design and assessment selected parts of the reinforced concrete structure supporting six storey office building with regard to the ultimate and serviceability limit state.This thesis contains a static calculation and technical drawings of concrete slab above first floor, staircase and two columns. For calculation of internal forces was created a 3D structural model in Scia Engineer 16. Assessment of all designed parts of the structure is done according to Eurocode 2 (ČSN EN 1992-1-1).
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Poruba, Michal. "Návrh sanace sesuvu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227466.

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Main goal of thesis entitled "Landslide remediation design" is - based on acquired knowledge and submitted documents about the problematic of landslides - to determine the causes of the landslides on II. class road between villages Koryčany and Jestřabice and to propose optimal redevelopment.
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Books on the topic "Limit state method"

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M, Pavlovic, ed. Structural concrete: Finite-element analysis for limit-state design. T. Telford, 1995.

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Saxcé, Géry. Limit State of Materials and Structures: Direct Methods 2. Springer Netherlands, 2013.

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Garcea, Giovanni, and Dieter Weichert, eds. Direct Methods for Limit State of Materials and Structures. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-29122-7.

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Weichert, Dieter. Limit States of Materials and Structures: Direct Methods. Springer Netherlands, 2009.

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Spiliopoulos, Konstantinos, and Dieter Weichert, eds. Direct Methods for Limit States in Structures and Materials. Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-6827-7.

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Allen, Tony M. Application of the K-̥stiffness method to reinforce soil wall limit states design. Washington State Dept. of Transportation, 2001.

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Mead, Kenneth M. Highway safety: Monitoring practices to show compliance with speed limits should be re-examined : statement of Kenneth M. Mead ... before the Subcommittee on Surface Transportation, Committee on Public Works and Transportation, United States House of Representatives. U.S. General Accounting Office, 1988.

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Mead, Kenneth M. Highway safety: Monitoring practices to show compliance with speed limits should be re-examined : statement of Kenneth M. Mead ... before the Subcommittee on Surface Transportation, Committee on Public Works and Transportation, United States House of Representatives. U.S. General Accounting Office, 1988.

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Mead, Kenneth M. Highway safety: Monitoring practices to show compliance with speed limits should be re-examined : statement of Kenneth M. Mead ... before the Subcommittee on Surface Transportation, Committee on Public Works and Transportation, United States House of Representatives. U.S. General Accounting Office, 1988.

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Office, General Accounting. Highway safety: Monitoring practices to show compliance with speed limits should be reexamined : briefing report to the chairman, Subcommittee on Water Resources, Transportation, and Infrastructure, Committee on Environment and Public Works, U.S. Senate. The Office, 1988.

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Book chapters on the topic "Limit state method"

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Hernández-Montes, Enrique, and Luisa María Gil-Martín. "The limit state design method." In Concrete Structures. CRC Press, 2024. http://dx.doi.org/10.1201/9781003169659-3.

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Bhanja, Santanu. "Limit state method as per IS:456." In Reinforced Concrete Design. CRC Press, 2024. http://dx.doi.org/10.1201/9781003415398-9.

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Simon, J. W., and D. Weichert. "Interior-Point Method for Lower Bound Shakedown Analysis of von Mises-Type Materials." In Limit State of Materials and Structures. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-5425-6_6.

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Trân, Thanh Ngọc, and Manfred Staat. "An Edge-Based Smoothed Finite Element Method for Primal-Dual Shakedown Analysis of Structures Under Uncertainties." In Limit State of Materials and Structures. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-5425-6_5.

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Echerradi, Insaf, Daniel Weisz-Patrault, and Michael Peigney. "A Direct Method for Cyclic Crystal Plasticity with Application to High-Cycle Fatigue." In Direct Methods for Limit State of Materials and Structures. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-29122-7_9.

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Bhanja, Santanu. "Limit state method as per IRC:112-2020 for RC sections." In Reinforced Concrete Design. CRC Press, 2024. http://dx.doi.org/10.1201/9781003415398-15.

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Wang, Xiaoxiao, and Haofeng Chen. "An Introduction to the Probabilistic Linear Matching Method Framework for Structural Integrity Assessment Under Uncertain Design Conditions." In Direct Methods for Limit State of Materials and Structures. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-29122-7_4.

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Stupishin, L. Yu, K. E. Nikitin, and M. L. Moshkevich. "Self-Stressing State and Progressive Limit Method Study of a Flat Strip." In Lecture Notes in Civil Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-80482-3_34.

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Křivánek, Roman, and Eliška Vošvrdová. "Experimental examination of the possibilities of geophysical methods in wooded and rugged terrain: case study of the defunct medieval glasswork Vysoká Jedle in the Ore Mountains." In Advances in On- and Offshore Archaeological Prospection. Universitätsverlag Kiel | Kiel University Publishing, 2023. http://dx.doi.org/10.38072/978-3-928794-83-1/p73.

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Rugged and wooded terrains of mountains limit possibilities of archaeological prospection. Various production or exploitation areas are typical for Czech mountain regions. Magnetometer survey of medieval glass works has been standard geophysical method for decades. The other geophysical methods could be also successful in glass furnaces identification or study. Magnetic susceptibility survey with a Multi Kappa instrument observes the state of production feature.
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Bhanja, Santanu. "Design of shear walls following the fundamental principles of limit state method as per Indian and international standards." In Reinforced Concrete Design. CRC Press, 2024. http://dx.doi.org/10.1201/9781003415398-19.

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Conference papers on the topic "Limit state method"

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Xu, Jianfeng, Srinivas Vishnubhotla, Olav Aamlid, and Leif Collberg. "Reeling Analysis and Limit State Criteria." In ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/omae2016-54971.

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Reeling has been an attractive offshore installation method for rigid flowlines and steel catenary risers due to its fast speed, cost effectiveness and reliability. Over years of evolution, it has become a proven technology, and the understanding to the engineering fundamentals is greatly improved as well. Due to the reeling process, the pipeline is plastically deformed; residual stresses, pipe ovality, and pipe out of straightness are increased. The strength, fatigue, and fracture performance of the pipe and the girth weld have to be closely evaluated to insure the pipeline integrity during and after the installation. As part of the installation design, different types of analyses are generally carried out to demonstrate the reelability, and the pipeline responses against all limit states. However, the methods adopted by different contractors can vary greatly. In this paper, the engineering fundamentals of reeling process are reviewed. A few typical reeling analyses, both analytical and finite element based, are demonstrated with examples. The local buckling limit state criteria based on DNV-OS-F101 for different stages of reeling are also illustrated.
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Bozorgzadeh, N., and J. Harrison. "Observational method in the context of rock engineering limit state design." In The 2016 Isrm International Symposium, Eurock 2016. CRC Press, 2016. http://dx.doi.org/10.1201/9781315388502-126.

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Fujii, Atsushi, Yoshifumi Hayashi, Yoshiharu Shimoda, et al. "A METHOD FOR DETERMINING LIMIT STATE DESIGN WAVE USING PERIOD DISTRIBUTION FUNCTION." In Proceedings of the 2nd International Conference. WORLD SCIENTIFIC, 2004. http://dx.doi.org/10.1142/9789812703040_0031.

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Wei, Hu, Zhao Dong-ping, and Zheng Chang-qing. "Research on Design Verification of Limit State Method for Railway Tunnel Lining." In Proceedings of the 6th International Symposium on Reliability Engineering and Risk Management. Research Publishing Services, 2018. http://dx.doi.org/10.3850/978-981-11-2726-7_cgen06.

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Sarnari, Alberto Jose, and Rastko Zivanovic. "Reliable steady state voltage stability limit estimation using Newton-Raphson-based method." In 2017 Australasian Universities Power Engineering Conference (AUPEC). IEEE, 2017. http://dx.doi.org/10.1109/aupec.2017.8282450.

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Sakai, Shinsuke, and Tomohisa Kumagai. "Application of Limit State Function Method to Statisitcal Analysis of Ballistic Penetration." In 2024 17th Hypervelocity Impact Symposium. American Society of Mechanical Engineers, 2024. https://doi.org/10.1115/hvis2024-107.

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Abstract For the risk evaluation of penetration caused by flying objects onto steel plates, the assessment of penetration probability is required. One simple method to evaluate the penetration probability when given the penetration formula together with the statistical properties of related random parameters is to apply Monte Carlo simulation (MC). However, in risk assessment cases, it is necessary to evaluate extremely small probabilities such as 10-4 or 10-6. To accurately perform this level of evaluation with MC, an enormous number of trial runs is re-quired, making it highly inefficient for conducting systematic risk management considerations. In this paper, we apply the Limit State Function Method (LSFM) to evaluate the penetration probability of flying objects on steel plates. We will show that, compared to the MC method, LSFM allows for a significantly smaller computational time while keeping accuracy even for the low probability values required in risk assessment. After simple explanation of LSFM formulation, we discuss the object-oriented software development. The computational time and the accuracy of evaluation will be discussed. The introduction of object-oriented programming demonstrates the efficient incorporation of numerous penetration formulas, showcasing a system development case that integrates 11 penetration formulas including the BRL formula.
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Guoqian, Wei, Rao Gang, and Dong Haitao. "Limit State Method Based Finite Element Analysis on the Long-Span Bridge Structure." In 2010 International Conference on Electrical and Control Engineering (ICECE 2010). IEEE, 2010. http://dx.doi.org/10.1109/icece.2010.691.

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Tapia, A., and N. Garcia. "Periodic steady-state solution of a Custom Power Park using the limit cycle method." In 2011 IEEE Power & Energy Society General Meeting. IEEE, 2011. http://dx.doi.org/10.1109/pes.2011.6039156.

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Feng, Xiaowei, and Susan Gourvenec. "A Method for Predicting Six Degrees-of-Freedom Ultimate Limit State of Subsea Mudmats." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-23206.

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Rectangular mudmat foundations are extensively deployed in deep waters to support subsea infrastructure leading to renewed interest in optimizing the design of offshore shallow foundations. Offshore industry guidelines (e.g. API RP2GEO and ISO 19901-4) are based on classical bearing capacity theory of a plane strain strip foundation resting on the surface of a uniform Tresca material. More realistic conditions are accounted for through a range of superposed empirical modification factors and the effective width principle. In practice, subsea foundations experience complex loading in six degrees-of-freedom (vertical load, biaxial horizontal load, biaxial moment and torsion), due to expansion and contraction of connected pipelines and jumpers; they may be able to mobilize transient tensile capacity; and they are typically three-dimensional in plan, shallowly embedded and founded on soft, normally consolidated, soils with linearly increasing strength with depth. Accurate determination of the ultimate limit state of subsea mudmats is best achieved by considering the relevant foundation, soil and loading boundary conditions explicitly. In this paper, a simplified approach for predicting the ultimate limit state of mudmat foundations under six degrees-of-freedom, based on failure envelopes, obtained from extensive finite element analyses, is compared with the traditional bearing capacity methods as recommended in industry guidelines.
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Morahan, Darren J., and Minaz Lalani. "Fatigue and Ultimate Limit State of Grouted Tubular Joints." In ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/omae2002-28633.

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A joint industry project commenced in 1993 to develop a design manual for tubular joints, which are strengthened or repaired through chord grout filling. This project was carried out in two phases and was completed in the late 1990’s. The project comprised the conduct of over 200 SCF and ultimate load tests on large scale as-welded and grouted tubular joints. In addition to the testing programme, studies on offshore deployment were carried out to ensure that complete chord grout filling was achievable for all practical scenarios. The primary reason for carrying out this project is the industry-wide recognition that chord grout filling represents an extremely cost-effective and mechanically efficient method to strengthen or repair tubular joints. Further, it has been recognised that double-skin joints (e.g. pile through leg with annulus grout-filled) are often present in structures and the enhanced strength and fatigue characteristics as a result could be exploited to permit more efficient new platform designs or better estimation of joint performance for existing installations. Although API RP2A [1] and ISO [2] recommendations permit the use of grouted joints, little guidance is provided. The guidance that is provided is based on public domain data and engineering principles. This project was carried out to generate a substantial amount of new data/information, leading to the creation of a detail design manual for grouted joints [3,4].
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Reports on the topic "Limit state method"

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Warke. L51822 A Limit States and Reliability-Based Girth Weld Assessment Framework for Long Pipeline Segments. Pipeline Research Council International, Inc. (PRCI), 2000. http://dx.doi.org/10.55274/r0011242.

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This report describes the development of a graphical framework enabling probabilistic assessment of surface-breaking planar defects in pipeline girth welds, in terms of multivariate limit state functions incorporating weld strength mismatch effects. This is part of an ongoing effort by the Welding Research Supervisory Committee to align girth weld fitness-for-service assessment methods with recent advancements in limit states- and reliability-based design for pipelines. A previous three-year program (PR-185-9429) by the same investigators produced a database of partial safety factors (PSFs), calibrated against a broad range of reliability targets, for use with limit state functions based on existing stress intensity (crack driving force) and plastic collapse solutions. Several inherent limitations of these solutions, including their inability to account for strength mismatch in the behavior of weld metal and heat-affected zone (HAZ) flaws, motivated the development of new relationships in the present work. The PSF-based approach to probabilistic assessment also had its limitations, namely that it did not provide all of the necessary tools to address multi-weld pipeline segments, and that it was somewhat cumbersome to apply in practice. A more direct method was therefore desired.
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Desjardins. L52204 Framework for the Optimization of Inspection Intervals. Pipeline Research Council International, Inc. (PRCI), 2004. http://dx.doi.org/10.55274/r0011352.

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The goal of this project is to develop a methodology to find the optimal inspection timing of pipelines carrying hazardous materials. The four principle parameters affecting the need for inspection are: - Anomaly severity - Deterioration rate Limit state - Consequences of failure In addition to these parameters, considered in this research, uncertainty needs to be understood and accounted for. Knowledge of each of the above parameters is limited by various factors. Morrison has chosen to approach this uncertainty with a probabilistic method that leads to a risk and reliability solution. As applicable to the optimization of inspection timing, the goal of this report is to provide a set of procedures to: - Assess pipeline integrity - Assess corrosion rates Predict future corrosion severity - Predict the increase of probability of failure (POF), reliability, and risk as a function of time and location along the pipeline - Optimize inspection, repair, and mitigation programs to maintain target integrity levels There is software related to this research.
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Palmer. NR199506 Introduction to Limit-State Reliability Based Pipeline Design. Pipeline Research Council International, Inc. (PRCI), 1995. http://dx.doi.org/10.55274/r0011200.

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�The practical objective of this study is to demonstrate to the pipeline industry that the limit-state and reliability based design methods have a sound and respectable basis which has generated genuinely valuable application. This study outlines the history and background to limit-state and reliability-based design, develops a design methodology and then demonstrates it by application to some real pipeline engineering problems. The study highlights the benefits and identifies any limitations in the methodology and discusses how they might be resolved.
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Turner, Benjamin. Guidance for Factoring Deep Foundation Structural Resistance for Landslide Stabilization and Excavation Support. Deep Foundations Institute, 2023. http://dx.doi.org/10.37308/cpf-2017-land-1.

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Lateral support provided by deep foundations can be an effective means to stabilize existing and potential landslides, and deep foundations contribute to the stability of support-of-excavation systems. However, defining the structural resistance and implementing it in a slope stability analysis that satisfies LRFD requirements is a source of significant confusion and miscommunication among geotechnical and structural designers. This report explains the implications of applying (or not) structural resistance factors at various stages of the analysis. Furthermore, most commercial slope stability software offers the option to either use the user-input structural resistance without reducing it by the slope stability factor of safety (“Method A”) or to reduce the structural resistance by the stability factor of safety (“Method B”). Applying a structural resistance factor and/or using Method B will result in designs requiring more structural reinforcement; however, it is not necessarily the case that doing so will significantly improve reliability (i.e., decrease the probability of failure) of the slope. Three example cases are presented and analyzed probabilistically to demonstrate how reliability is influenced by the chosen method for factoring structural resistance, and the various scenarios for which this may or may not represent a tangible improvement in reliability from the slope Owner’s perspective. A recommended approach for factoring and implementing deep foundation structural resistance in slope stability analyses is described along with a simple example. After initial stability analyses are run without the deep foundations to define the critical surface geometry, p-y method lateral pile-soil interaction analyses are performed to identify the controlling strength limit state and corresponding mobilized shear resistance at the intersection of the deep foundation and critical slide surface. Because this mobilized resistance is limited by the factored shear and flexural strength of the foundation element, it represents a factored resistance, and inherently satisfies LRFD structural design requirements. This factored resistance is input back into the slope stability analyses using Method A such that no additional factoring is applied to the structural resistance; the stability analyses must then satisfy a minimum factor of safety, typically in the range of 1.3 to 1.5. The AASHTO LRFD Bridge Design Specifications prescribe that the global stability factor of safety is interpreted as the reciprocal of the geotechnical resistance factor, and that the load factor for global stability is 1.0. Hence, the recommended approach satisfies structural and geotechnical LRFD requirements.
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Strom, Ralph W., and Robert M. Ebeling. Simple Methods Used to Estimate the Limit-State Axial Load Capability of Spillway Invert Slabs. Defense Technical Information Center, 2004. http://dx.doi.org/10.21236/ada427082.

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Nessim and Zhou. L51998 Current Status and Future Development Needs of Limit States Designs for Onshore Pipelines. Pipeline Research Council International, Inc. (PRCI), 2003. http://dx.doi.org/10.55274/r0011219.

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Reliability Based Design and Assessment (RBDA) methods for pipelines have some key benefits, including: consideration of the true structure behavior; achievement of consistent safety levels for all pipelines; optimal decisions that achieve better safety without increasing costs; adaptability to new technologies and unique loading situations; and integration of design and operational decisions. Although a considerable amount of research has been carried out towards the development of RBDA methods for the onshore pipelines, there are several technology gaps that limit the application of such methods. These include lack of a standardized process to estimate reliability and industry-accepted reliability targets. They also include lack of familiarity of the industry and regulators with the approach. These gaps need to be filled through a research effort to create guidelines for applying reliability-based design and assessment methods and develop appropriate reliability targets that can be used to evaluate the results; and a communication effort to familiarize the industry with the approach and facilitate its incorporation into codes of practice.
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Zhou and Nessim. TDZL969 Application of Reliability-based Design and Assessment to Onshore Natural Gas Pipelines. Pipeline Research Council International, Inc. (PRCI), 2008. http://dx.doi.org/10.55274/r0010899.

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This work aims at establishing reliability-based methods as a useable tool for the design and assessment of onshore natural gas pipelines. This work focuses on several practical issues related to the application of ultimate limit state targets for a given pipeline.
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Cohen, Deborah J., Annette M. Totten, Robert L. Phillips, Jr., et al. Measuring Primary Healthcare Spending. Agency for Healthcare Research and Quality (AHRQ), 2024. http://dx.doi.org/10.23970/ahrqepctb44.

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Background. Policy leaders and researchers have identified a range of primary care spending conceptualizations, developed frameworks and methods for measuring primary care spending, and documented the pros and cons of different approaches. However, these efforts have not been comprehensive, particularly as the number of estimates has grown. We continue this work by identifying the definitions, data sources, and approaches used to estimate primary care spending in the United States. Our objective was to identify where there is and is not consensus across methods, and how initial steps toward a standardized approach to estimating primary care spending might be achieved. We approached this comparison from a societal economic perspective. Methods. Searches were conducted in Ovid MEDLINE® and Cochrane CENTRAL databases (inception to May 2, 2023), and were supplemented by manual reviews of reference lists, Scopus searches of key articles, gray literature searches of State and organization websites, and responses to a Federal Register Notice, as well as recommendations from Key Informants. Websites of States and organizations that produced reports were reviewed in November 2023 to identify updates. Publicly available estimates and reports of methods were supplemented by discussions with experts who have supported States’ estimates. Findings. We identified 67 primary care spending estimates for 2010 to 2021: 42 of these were produced by 11 State Governments for their State, 2 were published by the Veterans Health Administration, and 23 were published by researchers or other organizations, which include foundations and policy organizations. Forty-four estimates reported on primary care spending for a single State, one estimate reported spending for the New England States, and 22 reported national spending. To date, 13 State Governments have developed and/or are implementing measurements of primary care spending. When State Governments measure primary care spending, they produce regular, often yearly, estimates. States have produced one to eight estimates, demonstrating some States have more experience with this task than others. Primary care spending estimates in our sample ranged from 3.1 to 10.3 percent. These estimates started with definitions of primary care, which are often labeled narrow or broad. Estimates may use these same labels to mean different things. Narrow definitions of primary care usually include fewer providers, locations, or service types, while broad definitions include more. State, regional, or national estimates are either reported as two estimates, one using a narrow and one using a broad definition of primary care, or as a single estimate labeled neither narrow nor broad. Variations in what providers, services, and locations are included in definitions of primary care are significant and likely contribute to variation in primary care spending estimates. However, it is difficult to distinguish differences in definitions and measurement from differences in actual primary care spending. Conclusions. While there are some core similarities in how primary care spending is measured across State, regional, and national estimates, there are more differences. While there may be rationale behind some of these variations, this variation limits comparisons and what could be understood about the impact of policies. Furthermore, lack of clear, detailed reporting of methods can obscure precisely how and why estimates differ. Research is needed that quantifies the impact different decisions and measurement methods have on spending estimates. To assure the validity and reliability of estimates of primary care spending, and facilitate comparisons and links to health outcomes, Federal, State, and policy leaders need to: (1) collaborate to create a primary care clinician database that can function as a public utility for States to allow for more precise identification of primary care clinics and clinicians, and reduce reliance on Current Procedural Terminology/Healthcare Common Procedure Coding System codes; (2) develop a template for transparent reporting of methods used to estimate primary care spending; (3) foster collaboration among Federal agencies and State leaders to develop a consensus definition of primary care and process for estimating primary care spending, with consideration of methods that are easy to understand and transparent; and (4) support the development and ongoing maintenance of State All-Payer Claims Databases, expand to include nonclaims payments, and supply Medicare and Medicaid estimates for every State.
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Christine, Lozano, and Riveros Guillermo. Classical and innovative methods of fatigue and fracture repairs in navigation steel structures. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/40422.

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Most of the hydraulic steel structures (HSS) in the U.S. have reached or have past their design life, which leads to unsatisfactory performance. Welded connections with low fatigue resistance, poor weld quality, unanticipated structural behavior, or unexpected loading due to the deterioration of the design boundary conditions are the causes of fatigue cracking. The purpose of this report is to identify and evaluate the traditional and new methods used for fatigue and fracture repairs in navigation steel structures to restore their load carrying capacity and fatigue and fracture resistance. The final objective was to generate a guidance report comprising of recommended and more efficient repair methods for the different fatigue limit states observed in navigation steel structures.
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Laber, Charles, Guilherme Lotufo, Austin Scircle, Jenifer Netchaev, and Anthony Bednar. Overview of microscale analytical methods for the quantitative detection of bioaccumulative contaminants in small tissue masses. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48190.

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For many bioaccumulation studies, generation of large sample masses of exposed organisms is challenging or even prohibitive. Therefore, the use of smaller sample masses for analysis without compromising data quality or quantitative level achieved is desirable. To this end, a variety of microanalytical procedures have been developed that used 1 g or less of tissue to address specific experimental challenges. However, these methods have not been systematically evaluated or published. The present work evaluates the current state of the microanalytical methods reported and identifies additional needs that would benefit US Army Corps of Engineers (USACE) research and navigation dredging programs. Discussions with commercial laboratories revealed that they typically do not accept small sample masses and require individual sample masses ranging from 10 to 20 g wet weight of tissue per analysis. If they do analyze a small mass sample, they routinely do not modify their standard process, resulting in detection and reporting limits orders of magnitude higher; therefore, essentially useless nondetect data are generated for regulatory decisions. To address the lack of commercial availability of microanalytical methods, we recommend pursuing method development and subsequent validation of microscale extraction and analysis of a variety of common contaminant compounds in tissue matrices.
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