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Journal articles on the topic 'Openseespy'

Author: Grafiati

Published: 9 March 2023

Last updated: 10 March 2023

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1

Zhu, Minjie, Frank McKenna, and Michael H. Scott. "OpenSeesPy: Python library for the OpenSees finite element framework." SoftwareX 7 (January 2018): 6–11. http://dx.doi.org/10.1016/j.softx.2017.10.009.

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2

Ngan, J. W., and C. C. Caprani. "ospgrillage: A bridge deck grillage analysis preprocessor for OpenSeesPy." Journal of Open Source Software 7, no. 77 (September 5, 2022): 4404. http://dx.doi.org/10.21105/joss.04404.

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3

Guo, Junjun, Aijun Ye, Xiaowei Wang, and Zhongguo Guan. "OpenSeesPyView: Python programming-based visualization and post-processing tool for OpenSeesPy." SoftwareX 21 (February 2023): 101278. http://dx.doi.org/10.1016/j.softx.2022.101278.

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4

Xiao, Yanjie, Xun’an Zhang, Feng Yue, Muhammad Moman Shahzad, Xinwei Wang, and Buqiao Fan. "Seismic Fragility Analysis of Mega-Frame with Vibration Control Substructure Based on Dual Surrogate Model and Active Learning." Buildings 12, no. 6 (June 1, 2022): 752. http://dx.doi.org/10.3390/buildings12060752.

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Seismic fragility analysis of a mega-frame with vibration control substructure (MFVCS) considering structural uncertainties is computationally expensive. Dual surrogate model (DSM) can be used to improve computational efficiency, whereas the proper selection of design of experiments (DoE) is a difficult work in the DSM-based seismic fragility analysis (DSM-SFA) method. To efficiently assess the seismic fragility with sufficient accuracy, this paper proposes an improved DSM-SFA method based on active learning (AL). In this method, the Kriging model is employed for surrogate modeling to obtain the predicted error of approximation. An AL sampling strategy is presented to update the DoE adaptively, and the refinement of the surrogate models can reduce the error of the probability result computed by the Monte Carlo (MC) simulation. A numerical example was studied to verify the effectiveness and feasibility of the improved procedure. This method was applied to the fragility analysis of an MFVCS and a mega-frame structure (MFS). The finite element models were established using OpenSeesPy and SAP2000 software, respectively, and the correctness of the MFVCS model was verified. The results show that MFVCS is less vulnerable than MFS and has better seismic performance.

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5

Chigullapally, Pavan, Lucas Hogan, Liam Wotherspoon, Max Stephens, and Michael Pender. "Experimental and numerical analysis of the lateral response of full-scale bridge piers." Bulletin of the New Zealand Society for Earthquake Engineering 55, no. 2 (May 31, 2022): 95–111. http://dx.doi.org/10.5459/bnzsee.55.2.95-111.

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This paper presents the results of in-situ testing of two integrated pile-columns of a partially demolished bridge located in Auckland, New Zealand. A series of tests involving lateral monotonic pushover and subsequent dynamic free vibration snapback tests were used to quantify the variation in the stiffness and damping behaviour of the pile-column specimens over a range of lateral load levels. Each testing sequence consisted of incrementally increasing peak monotonic loads followed by the dynamic snapback, with a series of varying peak loads at the end of the testing sequence to evaluate the influence of loading history on the monotonic and dynamic response. The secant stiffness between the monotonic pushover tests performed to the same loading levels before and after the maximum load was applied, reduced by up to 40% in both the pile-columns, primarily due to soil gapping effects, highlighting the significant potential softening of the system prior to pile or column yielding. Progressive reduction in the damping of the system during each snapback test was evident, due to the varying contributions of different energy dissipation mechanisms, and the level of damping varied depending on the peak load applied. These results highlighted the significant influence of soil gapping and nonlinearity on the dynamic response of the system. Numerical models were developed in the open source structural analysis software OpenSeesPy using a Nonlinear Beam on Winkler Foundation approach to further investigate the response of the pile-columns. Models of both the pile-columns using existing p-y curves for clay soils showed good agreement with the experimental data in load-displacement, period and snapback acceleration time histories. Sensitivity analysis showed that the surface soft clay layer had a significant effect on the lateral response and dynamic characteristics of the model, reinforcing the need for good characterisation of the near surface soil profile to capture the behaviour of the system.

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6

Gao, Yi Chao, Feng Jin, Yan Jie Xu, and Jian Yang. "Development of Pre-Processor for OpenSees Based on Patran Command Language." Applied Mechanics and Materials 409-410 (September 2013): 1615–19. http://dx.doi.org/10.4028/www.scientific.net/amm.409-410.1615.

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OpenSees is an object-oriented open-source finite element software platform suitable for advanced simulation of structural and geotechnical systems. Lacking of powerful pre-processor, the preparing of input scripts for OpenSees is time consuming and error-prone for large and complex models. Patran is an excellent pre-processing commercial package for finite element analysis and offers the powerful Patran Command Language (PCL) for user customization. Taking the advantage of Patran in finite element pre-processing, the finite element modeling is done in Patran and the input script for OpenSees is generated by PCL. It is an alternative approach to efficient pre-processing for OpenSees.

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7

Jiang, Jian, Guo-Qiang Li, and Asif Usmani. "Analysis of Composite Steel-concrete Beams Exposed to Fire using OpenSees." Journal of Structural Fire Engineering 6, no. 1 (February 17, 2015): 1–20. http://dx.doi.org/10.1260/2040-2317.6.1.1.

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OpenSees is an open-source object-oriented software framework developed at UC Berekeley. The OpenSees framework has been recently extended to deal with structural behaviour under fire conditions. This paper summaries the key work done for this extension and focuses on the validation and application of the developed OpenSees to study the behaviour of composite steel-concrete beams under fire conditions. The performance of the developed OpenSees are verified by four mechanical tests and two fire tests on simply supported composite beams. A parametric study is carried out using OpenSees to study the influence of boundary condition as well as composite effect of slab on the behavior of composite beams exposed to fire. The stress and strain along the beam section is output and compared with yield stress limit at elevated temperature to explain these influences in detail. The results show that the stress distribution in the web of the steel beam is more complex due to the support effects.

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8

Usmani, Asif, Jian Zhang, Jian Jiang, Yaqiang Jiang, and Ian May. "Using Opensees for Structures in Fire." Journal of Structural Fire Engineering 3, no. 1 (March 2012): 57–70. http://dx.doi.org/10.1260/2040-2317.3.1.57.

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9

Hasibuan, Samsul A. Rahman Sidik, Yoyong Arfiadi, and Junaedi Utomo. "Nonlinear Time History Analysis of Flat Slab Structure With OpenSees Navigator." MEDIA KOMUNIKASI TEKNIK SIPIL 28, no. 1 (July 29, 2022): 59–66. http://dx.doi.org/10.14710/mkts.v28i1.38184.

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Structural systems that do not use a beam as the main component were first developed by Turner in 1906. This structural system is better known as a flat slab. The flat slab structure is supported by column heads and drop panels, or without drop panels, or without column heads. Several building codes such as IS 456: 2000, ACI 318-08, ACI 318-19, EC 2:2004, and NZS 3101 (Part 1):2006 provide guidance for designing flat slab systems under gravity loads only. However, many flat slab buildings are also built in areas with high earthquakes which can cause the collapse of buildings due to earthquake loads. In this paper the 10-level flat slab building structure design results are analyzed using nonlinear time history response analysis with the help of OpenSees Navigator software using several earthquake records, namely Kobe (Japan, 1995), Imperial Valley (California, 1979) and Tabas (Iran, 1978) which has been adjusted to the design spectra of the city of Yogyakarta. From the results of the analysis using OpenSees Navigator, it was found that the story drift that occurred was still within the limits required in the regulations, so that the building being reviewed was still within the limits of life safety design.

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10

A. Mordini and H. Wenzel. "Damage detection on beam structures by means of VCUPDATE." Electronic Journal of Structural Engineering 10 (January 1, 2010): 11–21. http://dx.doi.org/10.56748/ejse.10121.

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One of the most promising computational methods in the field of Structural Health Monitoring is the Finite Element Model Updating. The VCUPDATE solution presented in this work is a Scilab code performing the iterative updating algorithm interfaced with a Finite Element code (OpenSees or ANSYS) executing the numerical analysis. The code is applied to the damage detection on beam structures. At first, a simple case numerically generated by OpenSees is investigated. Subsequently, using experimental test data, the code is applied to a real structure by using OpenSees as well as ANSYS.

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11

Wang, Feng, and Qiang Chen. "Seismic Analysis and Damage Evaluation of RC Frame Structures Based on BIM Platform." Mobile Information Systems 2022 (June 28, 2022): 1–11. http://dx.doi.org/10.1155/2022/2100886.

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In order to overcome the shortcomings in integrating the building information modeling (BIM) and seismic finite element technique for building structures, a new seismic analysis and damage evaluation method for reinforced concrete (RC) frame structures was proposed by integrating Revit and OpenSees, in which the information about geometric and material of the existing BIM model in Revit was extracted as part of the finite element analysis model of OpenSees; supplementary settings about the element type, material constitutive model, load information, and analysis type for finite element analysis were made according to the input format of OpenSees, and OpenSees program was directly called for numerical analysis in the Revit software which realized seismic analysis and damage evaluation of RC frame structures based on BIM. RTO, a revolutionary structural seismic analysis and damage evaluation tool based on the three-tier architecture theory, was created by combining Revit and OpenSees via the RevitAPI interface. The preprocessing module was created to contact OpenSees for finite element analysis, the postprocessing module was created to secondary analyze, display, and export the analysis data, and crucial structural seismic damage information was automatically saved in the Revit model. A calculation example of a five-story RC frame structure was provided to demonstrate the operation process of the proposed method and the developed program. The example proved the feasibility of integrating the BIM and finite element method in elastic-plastic structural seismic analysis. The proposed approach would facilitate the participation of structural seismic analysis in BIM life cycle collaboration.

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12

Vaiana, Nicoló, Raffaele Capuano, Salvatore Sessa, Francesco Marmo, and Luciano Rosati. "Nonlinear Dynamic Analysis of Seismically Base-Isolated Structures by a Novel OpenSees Hysteretic Material Model." Applied Sciences 11, no. 3 (January 20, 2021): 900. http://dx.doi.org/10.3390/app11030900.

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The complex response characterizing elastomeric isolation bearings is reproduced by employing a novel uniaxial hysteretic model that has been recently formulated and successfully implemented in OpenSees. Such a novel OpenSees material model offers several advantages with respect to differential models typically available in commercial software products for structural analysis, such as 3D-BASIS and CSi programs. Firstly, it is based on a set of only five model parameters that have a clear mechanical significance; such a property not only allows one to drastically simplify the parameters identification process, but it also allows the model to be used in practice. In addition, the model does not require numerical methods for the evaluation of the restoring force since the latter is computed by solving an algebraic equation. To encourage researchers and designers to adopt the proposed model for research and practical purposes, we demonstrate its accuracy by performing some numerical tests in OpenSees. In particular, we first employ the recently implemented model to compute the nonlinear dynamic response of a seismically base-isolated structure with elastomeric bearings and, subsequently, we compare the results with those obtained by modeling the seismic isolators with the OpenSees BoucWen uniaxial material model, that is one of the most popular and accurate hysteretic models currently available in OpenSees.

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13

McKenna, Frank. "OpenSees: A Framework for Earthquake Engineering Simulation." Computing in Science & Engineering 13, no. 4 (July 2011): 58–66. http://dx.doi.org/10.1109/mcse.2011.66.

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14

Conte, Joel, Frank McKenna, and Quan Gu. "Preface: Advances in OpenSees Applications to Civil Engineering." Computer Modeling in Engineering & Sciences 120, no. 3 (2019): 467–70. http://dx.doi.org/10.32604/cmes.2019.08174.

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15

Zhang, Guo Xue, Chang Wei Wang, and Jia Wei Huang. "Nonlinear Analysis on Stainless Steel Reinforced Concrete Columns under Low-Cyclic Load." Applied Mechanics and Materials 256-259 (December 2012): 588–91. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.588.

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In order to study the elastic-plastic mechanics properties of the stainless steel reinforced concrete columns under low-cyclic load, the engineering open-source earthquake simulation system OpenSees is used to carry out the numerical simulation. The comparison between the computed results and the pseudo-static test results shows that the OpenSees may stimulate the mechanical properties of the stainless steel reinforced concrete columns by using the fiber element model, both of the skeleton curves and hysteretic curves are well agreement with the tests results.

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16

Scott, Michael H., Adrian Kidarsa, and Christopher Higgins. "Development of Bridge Rating Applications Using OpenSees and Tcl." Journal of Computing in Civil Engineering 22, no. 4 (July 2008): 264–71. http://dx.doi.org/10.1061/(asce)0887-3801(2008)22:4(264).

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17

Jiang, Jian, and Asif Usmani. "Modeling of steel frame structures in fire using OpenSees." Computers & Structures 118 (March 2013): 90–99. http://dx.doi.org/10.1016/j.compstruc.2012.07.013.

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18

Liu, Li Juan, Xian Guo Ye, Xun Chong, Qing Jiang, and Lin Lin Xie. "Nonlinear Numerical Simulation Analysis on Mechanical Behavior of High-Strength Concrete Beams Reinforced by HRBF500 Steel." Applied Mechanics and Materials 166-169 (May 2012): 1607–13. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.1607.

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Mechanical Behavior of 3 high-strength concrete simply supported beams reinforced by HRBF500 steel with different stirrup ratio are simulated by software OpenSees .In order to establish the constitutive relationship of high-strength concrete more accurately, some parameters of modified Kent-Park were adjusted partly. Furthermore, the restraining effect of different stirrup ratio to the core concrete is considered by the concrete strength rasied coefficient k. The analysis results matched the test ones well, indicating that the OpenSees program is effective to simulate the mechanical behavior of high-strength concrete members reinforced by high-strength steel.

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19

Chen, Peng, Longhe Xu, and Zhongxian Li. "Modeling methods of self-centering energy dissipation braces using OpenSees." Journal of Constructional Steel Research 193 (June 2022): 107267. http://dx.doi.org/10.1016/j.jcsr.2022.107267.

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20

Ju, Yan Zhong, Yu Mu, and De Hong Wang. "A Nonlinear Model for Beam-Column Joint Based on OpenSees." Advanced Materials Research 919-921 (April 2014): 3–6. http://dx.doi.org/10.4028/www.scientific.net/amr.919-921.3.

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The beam-column joint is the key component of a RC structure and also the hub of stress transferring between beam and column. It is the major part for ensuring enough stiffness, ductility and good energy dissipation capacity of the RC frame. In order to simulate the beam-column joints under cyclic loading, a model based on OpeeSees was studied. OpenSees has advantages over other nonlinear analysis software in the improvement of algorithms. Comparison of simulated and observed hysteretic curve indicates that the proposed model is appropriate.

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21

Gandelli, E., M. Penati, V. Quaglini, G. Lomiento, E. Miglio, and G. M. Benzoni. "A novel OpenSees element for single curved surface sliding isolators." Soil Dynamics and Earthquake Engineering 119 (April 2019): 433–53. http://dx.doi.org/10.1016/j.soildyn.2018.01.044.

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22

Jiang, Jian, Liming Jiang, Panagiotis Kotsovinos, Jian Zhang, Asif Usmani, Frank McKenna, and Guo-Qiang Li. "OpenSees Software Architecture for the Analysis of Structures in Fire." Journal of Computing in Civil Engineering 29, no. 1 (January 2015): 04014030. http://dx.doi.org/10.1061/(asce)cp.1943-5487.0000305.

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23

Jiang, Jian, Asif Usmani, and Guo-Qiang Li. "Modelling of Steel-Concrete Composite Structures in Fire Using OpenSees." Advances in Structural Engineering 17, no. 2 (February 2014): 249–64. http://dx.doi.org/10.1260/1369-4332.17.2.249.

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24

Džolev, Igor, Aleksandra Radujković, Meri Cvetkovska, Đorđe Lađinović, and Vlastimir Radonjanin. "POŽARNA ANALIZA ČELIČNE PROSTE GREDE KORIŠĆENJEM OPENSEES I ANSYS WORKBENCH." Zbornik radova Građevinskog fakulteta 32, no. 29 (2016): 315–22. http://dx.doi.org/10.14415/konferencijagfs2016.031.

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25

Liang, Hong, Terje Haukaas, and Johannes O. Royset. "Reliability-based optimal design software for earthquake engineering applications." Canadian Journal of Civil Engineering 34, no. 7 (July 1, 2007): 856–69. http://dx.doi.org/10.1139/l07-002.

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This paper describes a functional tool for engineers to make rational design decisions by balancing cost and safety. Focus is on seismic design, in which nonlinear structural response must be considered. For this purpose, we implement and apply a state-of-the-art algorithm for reliability-based design optimization. The work extends the OpenSees software, which is rapidly gaining users in the earthquake engineering community. Consequently, design optimization with sophisticated nonlinear finite element models of real structures is possible. An object-oriented software architecture is employed that focuses on maintainability and extensibility of the software. This approach also offers flexibility in the choice of optimization and reliability methods for each specific problem, supported by the decoupled nature of the optimization algorithm. Our work utilizes and extends the existing tools for structural reliability analysis in OpenSees. In particular, we employ response sensitivities that are computed within the finite element code by direct differentiation. The implementation is tested through case studies with nonlinear structural response. Discontinuous response gradients are overcome by use of fibre cross sections and smoothed material models. The numerical examples include the seismic design optimization of a six-storey, three-bay, reinforced concrete building. Key words: reliability-based design optimization, nonlinear finite elements, earthquake engineering, object-oriented software development, OpenSees.

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26

Liu, Hanyun, Zhiwu Yu, and Wei Guo. "A Fast Modeling Technique for the Vertical Train-Track-Bridge Interactions." Shock and Vibration 2019 (April 28, 2019): 1–14. http://dx.doi.org/10.1155/2019/5392930.

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This paper proposed a fast modeling technique (FMT) for the vertical dynamic analysis of the coupled train-track-bridge (TTB) systems, which combines the train subsystems and track-bridge subsystems by the client-server technique to complete the entire TTB analysis on simplex OpenSees simulation platform. Thus, the FMT could dramatically reduce the time consumed of programming and modeling and significantly reduce the amount of data transmission between subsystems for TTB interaction. Moreover, FMT could take full advantage of OpenSees in nonlinear and seismic analysis. So FMT is a practical and convenient approach to analyze the TTB coupling vibration, and especially it is suitable for the junior researchers of TTB interaction. FMT could improve the modeling efficiency to save time.

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27

Yang, Zhihui, Chuanfu Li, Lei Liu, Haiyang Yang, and Tieyi Zhong. "Study on Modeling Method of Reinforced Concrete Pier Based on OpenSees." Journal of Physics: Conference Series 1838, no. 1 (March 1, 2021): 012034. http://dx.doi.org/10.1088/1742-6596/1838/1/012034.

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28

Li, Lei, and Shan Suo Zheng. "Modeling of the CFT Column under Cyclic Load Based on OpenSEES." Advanced Materials Research 368-373 (October 2011): 761–64. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.761.

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This paper investigates modeling approaches of circular concrete-filled steel tube (CFT) column under cyclic load based on flexibility and fiber model. The effects of model parameters on modeling results is discussed, including constitutive relationship of materials, division of the fiber section, and the number of integration points. The results show that the material constitutive relationships of concrete and steel are prime important to the accuracy of the computational results. Three to five integration points for one CFT column in the flexibility-based analysis can achieve the desired accuracy and computational efficiency. The computational result is not sensitive to the number of sectional fibers. However, the desired accuracy can not be obtained if the number of the sectional fiber is not enough.

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29

Pan, Zhi Hong, Ai Qun Li, and Yi Gang Sun. "Nonlinear Static Analysis of RC Shear Wall Structure Based on Opensees." Advanced Materials Research 163-167 (December 2010): 1425–30. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.1425.

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To study the seismic performance of RC shear wall, and to develop its fine nonlinear analysis method, systemic studies on nonlinear static analysis and it’s realization method are carried out. Beginning with rotating-angle softened-truss model for coupled shear and flexural responses, analytical model of solid wall is presented based on the comparative study on four types of constitutive law of concrete for confined concrete of boundary zone. Good agreements between analytical and experimental results of load-displacement relation are found, which indicates that the proposed analytical method can reflect the global mechanical behavior of shear wall well. Studies on coupling beam and global perforated wall modeling are implemented, then modeling approach and nonlinear static analysis method for perforated wall are proposed. Comparing analytical load-displacement curve to experimental, initial stiffness and first turning point agree well and analytical ultimate capacity is close to experimental, which is shown that the load-displacement curve can actually exhibit the general load-displacement trend of perforated wall.

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30

Shabani, Amirhosein, and Mahdi Kioumarsi. "Hyperomet: An OpenSees interface for nonlinear analysis of unreinforced masonry buildings." SoftwareX 20 (December 2022): 101230. http://dx.doi.org/10.1016/j.softx.2022.101230.

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31

Cai, Xiao Ning, Shao Ping Meng, Jia Jia Chen, and Wei Wei Sun. "Numerical Analysis of Post-Tensioned Coupled Wall." Advanced Materials Research 163-167 (December 2010): 1935–39. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.1935.

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Based on OpenSEES, nonlinear beam-column element based on fiber model and considered nonlinear shear deformation was used to simulate wall limb; zero-length elements were used to simulate action of prestressing tendon and connecting reinforcement in the interface between coupling beam and wall limb; the hysteretic models of the zero-length elements were established by programming. The low-cyclic loading tests of two PCW specimens were introduced. Results of the numerical analysis and the tests indicate that elasto-plastic performances of PCW can be well simulated by numerical analysis, analysis model based on OpenSEES can be applied to non-linear analysis and of good precision; PCW is of good self-centering ability with little residual deformation after unloading, and damage concentrating in certain parts that can be repaired after earthquake; energy dissipation capacity of PCW is increased because of the connecting reinforcement.

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32

Malla, Prafulla B., Hong Zhou, and Yi Che. "Cyclic Flexural Behavior of Reinforced Concrete Beams." E3S Web of Conferences 38 (2018): 03022. http://dx.doi.org/10.1051/e3sconf/20183803022.

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The present study aims at investigating the cyclic flexural behavior of reinforced concrete beams with varying depths. Five reinforced concrete beams with beam depth ranging from 250 mm to 750 mm were tested under reversed cyclic loading and the influence of beam depth on the flexural strength and ductility of reinforced concrete beams was investigated. In addition, OpenSees was used to model the test specimens and the analytical results were compared with the experimental reuslts. It is shown that there is no apparent size effect on the normalized ultimate flexural strength of the tested beams, while for the displacement ductility factor, a significant size effect is observed. Load-deflection hysteric curves of test specimens obtained by the fiber-based element of OpenSees with Concrete03 and Hysteric models are in good agreement with those from experimental tests.

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33

Han, Jian Ping, and Jun Ping Yang. "Influence of Reinforcing Steel Post-Capping Strength Deterioration on Collapse Resistance Capacity of a Single-Storey RC Planar Frame." Applied Mechanics and Materials 166-169 (May 2012): 1801–6. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.1801.

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Seismic analysis and design based on collapse probability under intense earthquakes is the main trend in the field of earthquake engineering. Accurate evaluation of collapse resistance capacity is necessary to achieve this target. Due to the accumulated deformation during seismic excitations, structural components would have different stiffness and strength deterioration characteristics. For evaluating the collapse capacity of the structure, it is important to take into account the deterioration characteristics in the analytical model. In this paper, the constitutive models for concrete and reinforcing steel, especially those adopted in OpenSees analytical software, are reviewed first. Then, a reinforced concrete single-storey planar frame structure with one bay is taken as case study and the effect of post-capping strength deterioration of reinforcing steel on evaluation results of global collapse resistance capacity is mainly investigated by incremental dynamic analysis (IDA) via OpenSees software. Analytical results show that global collapse resistance capacity will be significantly overestimated without considering the effect of post-capping strength deterioration of reinforcing steel.

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34

Chen, Qing Jun, Jin Long Guo, Jian Cai, An He, Xu Lin Tang, and Chun Yang. "Finite Element Analysis on Concrete Filled Steel Tubular Concrete Beam Joints under Cyclic Loading by OPENSEES." Applied Mechanics and Materials 166-169 (May 2012): 287–91. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.287.

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Concrete filled steel tubular (CFST) column-beam joint with the column tube discontinuous in joint zone is a new type of joint. Firstly, the results of the cyclic loading experiments on this joint were introduced briefly. Then numerical simulation of the experiment process was carried out by OPENSEES, and the load-displacement curves, strength degradation, stiffness degradation of the specimens were studied. The analysis results exhibit good agreement with the experimental ones. OPENSEES can simulate two types of failure, including joint failure and beam failure. Based on specimen S3, parametric analysis were conducted to research the strength degradation and stiffness degradation in models with different reinforcement ratios and reinforcement diameters. The results indicate that models with higher reinforcement ratio of the beams will result in joint failure under cyclic reverse loading, and their load-displacement curves are pinched and ultimate bearing capacity would not increase while strength degradation and stiffness degradation would appear obviously.

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35

Gu, Quan, Lei Wang, and Surong Huang. "Integration of Peridynamic Theory and OpenSees for Solving Problems in Civil Engineering." Computer Modeling in Engineering & Sciences 120, no. 3 (2019): 471–89. http://dx.doi.org/10.32604/cmes.2019.05757.

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36

Qiu, Zhijian, Jinchi Lu, Ahmed Elgamal, Lei Su, Ning Wang, and Abdullah Almutairi. "OpenSees Three-Dimensional Computational Modeling of Ground-Structure Systems and Liquefaction Scenarios." Computer Modeling in Engineering & Sciences 120, no. 3 (2019): 629–56. http://dx.doi.org/10.32604/cmes.2019.05759.

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37

Meng, Qing Li, and Xia Yin. "The 3D Seismic Pounding Effect of High-Pier Bridge Based on OpenSees." Advanced Materials Research 368-373 (October 2011): 695–704. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.695.

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In this paper, a real high-piers bridge was taken as the example, the 3D nonlinear finite element model of this high-pier bridge is built based on OpenSees, then to do the analysis of seismic collision effects of the high-pier bridge under uniform excitation and multi-excitation considering the effect of traveling wave. And analyzing the reaction rule under different ground motions, and focusing on the differences of the effects of seismic pounding between uniform excitation and multi-excitation considering the effect of traveling wave. the seismic responses of high-pier bridge are closely related with its inherent dynamic characteristics and the spectral characteristics of ground motion and closer to the natural cycle of the bridge the main periods of ground motion is,greater the bridge collision response; traveling wave effect amplifies seismic pounding response, while the end of piers are adversely affected, exacerbating the damage. Although whether or not the traveling wave effect is harmful to the bearing, the traveling wave effect has obvious influences to bearing. Therefore, in the analysis of bridge seismic collision response it is necessary to consider traveling wave effect.

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38

Zhang, Xiaomeng, Qiaji Wang, Qingying Ren, Wenting Liu, and Weilun Ding. "Finite Element Analysis of Prefabricated Concrete Box Structure System on OpenSees software." IOP Conference Series: Earth and Environmental Science 791, no. 1 (June 1, 2021): 012036. http://dx.doi.org/10.1088/1755-1315/791/1/012036.

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39

Qiu, Jin, Liming Jiang, Mhd Anwar Orabi, Asif Usmani, and Guoqiang Li. "A computational approach for modelling composite slabs in fire within OpenSees framework." Engineering Structures 255 (March 2022): 113909. http://dx.doi.org/10.1016/j.engstruct.2022.113909.

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Rahman, Md Motiur, Tahmina Tasnim Nahar, and Dookie Kim. "FeView: Finite element model (FEM) visualization and post-processing tool for OpenSees." SoftwareX 15 (July 2021): 100751. http://dx.doi.org/10.1016/j.softx.2021.100751.

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Deng, Lu, Wangchen Yan, and Shaofan Li. "Computer Modeling and Weight Limit Analysis for Bridge Structure Fatigue Using OpenSEES." Journal of Bridge Engineering 24, no. 8 (August 2019): 04019081. http://dx.doi.org/10.1061/(asce)be.1943-5592.0001459.

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42

Ghaffary, Azin, and Reza Karami Mohammadi. "Framework for virtual hybrid simulation of TADAS frames using opensees and abaqus." Journal of Vibration and Control 24, no. 11 (November 17, 2016): 2165–79. http://dx.doi.org/10.1177/1077546316679029.

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Abstract:

Virtual hybrid simulation is a computationally-efficient method that enables coupling of two or more finite element analysis programs. In this study, benefits of this technique in predicting both cyclic and seismic response of a one-story one-bay frame equipped with a Triangular-plate Added Damping and Stiffness (TADAS) damper are evaluated. For this purpose, a detailed FE model of the damper is built in Abaqus to take into account precise modelling of its hysteretic behavior as well as a number of important features related to the geometric characteristics of the including parts of the device, while the remainder of the structure is modelled in OpenSees. Continuous exchange of the data between the coupled codes is conducted through the software framework, OpenFresco. Comparison of the results with experimental outcomes is presented, which proves the ability of the introduced technique in modelling the behavior of such structures in an efficient manner while preserving sufficient accuracy. At the end, a series of dynamic virtual hybrid simulations of the frame are performed which provide useful insights into design of TADAS frames.

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Zhu, Minjie, and Michael H. Scott. "Modeling fluid–structure interaction by the particle finite element method in OpenSees." Computers & Structures 132 (February 2014): 12–21. http://dx.doi.org/10.1016/j.compstruc.2013.11.002.

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Dong, Hanlin, Minjuan He, Xijun Wang, Constantin Christopoulos, Zheng Li, and Zhan Shu. "Development of a uniaxial hysteretic model for dowel-type timber joints in OpenSees." Construction and Building Materials 288 (June 2021): 123112. http://dx.doi.org/10.1016/j.conbuildmat.2021.123112.

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45

Gu, Quan, Michele Barbato, Joel P. Conte, Philip E. Gill, and Frank McKenna. "OpenSees-SNOPT Framework for Finite-Element-Based Optimization of Structural and Geotechnical Systems." Journal of Structural Engineering 138, no. 6 (June 2012): 822–34. http://dx.doi.org/10.1061/(asce)st.1943-541x.0000511.

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46

Wang, Chenchen, Hongjun Xu, and Jingdong Zhang. "Parameter Analysis for Seismic Performance of Prestressed Fabricated Frame Joint Based on Opensees." IOP Conference Series: Earth and Environmental Science 455 (March 25, 2020): 012029. http://dx.doi.org/10.1088/1755-1315/455/1/012029.

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Kang, Liping, Roberto T. Leon, and Xilin Lu. "A general analytical model for steel beam-to-CFT column connections in OpenSEES." Journal of Constructional Steel Research 100 (September 2014): 82–96. http://dx.doi.org/10.1016/j.jcsr.2014.04.022.

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48

Gu, Quan, and Ozgur Ozcelik. "Integrating OpenSees with other software - with application to coupling problems in civil engineering." Structural Engineering and Mechanics 40, no. 1 (October 10, 2011): 85–103. http://dx.doi.org/10.12989/sem.2011.40.1.085.

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49

Elhami Khorasani, Negar, Maria E. M. Garlock, and Spencer E. Quiel. "Modeling steel structures in OpenSees: Enhancements for fire and multi-hazard probabilistic analyses." Computers & Structures 157 (September 2015): 218–31. http://dx.doi.org/10.1016/j.compstruc.2015.05.025.

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Luo, Hexian, Qiaoyun Wu, and Weijie Pan. "Research and Experiment on Optimal Separation Distance of Adjacent Buildings Based on Performance." Mathematical Problems in Engineering 2018 (September 6, 2018): 1–13. http://dx.doi.org/10.1155/2018/3483401.

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Abstract:

Firstly, constitutive models of two unequal height adjacent ten-story and six-story reinforced concrete frame structures were established based on OpenSees software in which a series of separation distances are set for incremental dynamic analysis (IDA), respectively. Secondly, the seismic vulnerability curves by postprocessing programming in Matlab software were obtained based on IDA datum, and the optimal separation distances of adjacent buildings with and without connecting dampers were obtained by comparing the seismic vulnerability of adjacent building at different separation distance and the seismic hazard analysis. Finally, a scaled model shaking table test of adjacent steel frame structures was performed. The conclusions are obtained by comparing the measured results of the test with those obtained by the OpenSees analysis, such as acceleration and displacement. The conclusions show that when two adjacent buildings are not connected with a damper, the distance of adjacent structures is suggested to be 0.3 m under moderate and strong earthquakes and the distance of adjacent structures is suggested to be a specified value of 0.24 m under rare earthquakes. When two adjacent buildings are connected with dampers, the separation distance is suggested to be 0.1 m under various performance conditions.

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