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Journal articles on the topic 'RC simplified models'

Author: Grafiati

Published: 7 June 2025

Last updated: 16 July 2025

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1

Du, Chuang, Xi Kang Yan, and Hai Long Zhao. "The Finite Element Model Improvement on Shear Behavior of RC Frame Columns under Lateral Bevel Load." Advanced Materials Research 468-471 (February 2012): 2609–12. http://dx.doi.org/10.4028/www.scientific.net/amr.468-471.2609.

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The finite element models of biaxial shear capacity of RC frame columns are investigated.The calculation results and experimental results are compared using the different models.It is shown that different finite element models are effectively used to simulate the RC frame column. However, the simplified model may save computer time and be more convenient for the numerical simulation. Finally, the bilateral shear correlation of RC frame column is investigated using the simplified model. The results indicate that the bilateral shear correlation of the RC frame columns with different quantity of

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2

Wang, Xing Guo, Nan Ge, Cui Min Wang, and You Po Su. "Research on Simplified RC Frame Column Model under Blast Load." Advanced Materials Research 163-167 (December 2010): 4346–49. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.4346.

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An overall numerical model for a reinforced concrete frame was established and in parallel, a group of simplified models were established for the same structure according to the particular characteristics of the subjected load such as impact load, dynamic load and quasi-static load, to investigate their dynamic behaviors. Results show that it is reasonable to introduce the simplified models for reinforced concrete frame in analysis work.

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3

Caprili, Silvia, Francesca Mattei, and Walter Salvatore. "Simplified mechanical models for critical regions in RC frame systems." Engineering Structures 252 (February 2022): 113677. http://dx.doi.org/10.1016/j.engstruct.2021.113677.

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4

Lopez, Jesus, Bernardo Ramirez, Clayton Pettit, and Carlos Cruz-Noguez. "Performance of Simplified Damage-Based Concrete Models in Seismic Applications." American Journal of Civil Engineering 12, no. 4 (2024): 95–107. http://dx.doi.org/10.11648/j.ajce.20241204.11.

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Significant progress in the finite-element (FE) modeling at the member-level of reinforced-concrete (RC) structures under seismic excitation has been achieved in the past decades; however, reliable and accurate analysis models for full-scale 3D system-level RC structures validated with experimental data are scarce. As the development of a complete nonlinear model is expensive and time consuming, simpler models, typically elastic or lumped-plastic in nature, are employed in practice with additional provisions prescribed to account for nonlinear behavior. Depending on the assumptions made by the

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5

Mont, Lecocq Enric, Jordi Pascual, and Jaume Salom. "Development of physically coherent grey-box models for residential buildings using a simplified adjustment method." Energy and Buildings 328 (February 1, 2025): 115215. https://doi.org/10.1016/j.enbuild.2024.115215.

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The use of dynamic resistance–capacitance (RC) grey-box models to estimate building thermal energy demands is a well-known strategy. Nonetheless, there are no clear methodologies to generate model variations without having to re-identify the parameters that are simple, flexible, accurate and low computation demanding. This research introduces a simple methodology that combines parameter identification from white box generated data and simplified theoretical building thermal equations to create functional and reliable RC model variations from an original grey-box model. It demonstrates th

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Frappa, Giada, Igino Pitacco, Simone Baldassi, and Margherita Pauletta. "Methods to Reproduce In-Plane Deformability of Orthotropic Floors in the Finite Element Models of Buildings." Applied Sciences 13, no. 11 (2023): 6733. http://dx.doi.org/10.3390/app13116733.

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In the modelling of reinforced concrete (RC) buildings, the rigid diaphragm hypothesis to represent the in-plane behavior of floors was and still is very commonly adopted because of its simplicity and computational cheapness. However, since excessive floor in-plane deformability can cause a very different redistribution of lateral forces on vertical resisting elements, it may be necessary to consider floor deformability. This paper investigates the classical yet intriguing question of modeling orthotropic RC floor systems endowed with lightening elements by means of a uniform orthotropic slab

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Das Adhikary, Satadru, and Bing Li. "Simplified Analytical Models to Predict Low-Velocity Impact Response of RC Beams." Practice Periodical on Structural Design and Construction 23, no. 2 (2018): 04018002. http://dx.doi.org/10.1061/(asce)sc.1943-5576.0000357.

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JUNGES, E., and H. L. LA ROVERE. "Comparison between simplified and FE models for short-term deflection in continuous RC beams." Revista IBRACON de Estruturas e Materiais 10, no. 2 (2017): 415–50. http://dx.doi.org/10.1590/s1983-41952017000200007.

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Abstract In this work, a comparative study of different simplified methods and nonlinear finite element (FE) models used for calculating short-term deflections (vertical displacements of the longitudinal axis) in continuous reinforced concrete (RC) beams, under service loads, is performed. The simplified methods employed are the one proposed by Branson and the bilinear method recommended by the European Code CEB - Design Manual on Cracking and Deformations. Two finite element models are utilized: the first one with frame elements in which material nonlinearities are considered along the elemen

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9

Liu, Jun Xian, and Kang Hai Tan. "Three-Stage Approach for Unrestrained Simply Supported RC Slabs under Uniformly Distributed Load." Applied Mechanics and Materials 166-169 (May 2012): 845–48. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.845.

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It is known from previous experiments that the load-carrying capacity for RC slabs at large deflection is governed and enhanced by the tensile membrane action. However, due to the intrinsic complexity of concrete properties, it is hard to capture the history of the load-deflection relationship for RC slabs. After reviewing several analytical reinforced concrete models, the author develops a simplified load-displacement semi-analytical model for laterally unrestrained simply supported RC slabs. Three stages have been identified for this model, which are elastic stage, transition stage and pure

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Haggag, May, Mohamed K. Ismail, and Ahmed Elansary. "Machine-Learning-Based Analysis of Internal Forces in Reinforced Concrete Conical and Cylindrical Tanks Under Hydrostatic Pressure Considering Material Nonlinearity." Buildings 15, no. 5 (2025): 779. https://doi.org/10.3390/buildings15050779.

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Reinforced concrete (RC) tanks are essential for storing liquids and bulk materials across various industries. However, simplified analytical methods fall short in providing an accurate analysis, while traditional methods, such as finite element modeling, can be computationally intensive and time-consuming, especially when dealing with nonlinear material properties and complex geometries, like conical and cylindrical shapes. This highlights the need for a more efficient and simplified analysis approach. Accordingly, the present paper introduces a machine learning (ML) framework as an effective

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11

Hou, Liqun, Weiming Yan, Shicai Chen, Ruiyun Zhang, and Yue Qi. "Shear Strength Prediction of RC Beam-column Sandwich Interior Joints Based on Simplified Softened Strut-and-Tie." Open Civil Engineering Journal 11, no. 1 (2017): 933–39. http://dx.doi.org/10.2174/1874149501711010933.

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Introduction: The sandwich joints casted core area with weaker strength concrete of beam, has more advantages than the traditional joints casted core area with higher strength concrete of column, such as the simple construction and quality assurance, while China design codes are too simple about the sandwich joints and have no clear calculation methods. Methods: Due to the scarcity of rational models for predicting the strength of RC beam-column sandwich joints, a modified simplified softened strut-and-tie model suggests a more rational calculation method for the effective compressive strength

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12

Montava, Isaac, Ramón Irles, Luis Estevan, and Ismael Vives. "Equivalent Frame Model with a Decaying Nonlinear Moment-Curvature of Steel-Reinforced Concrete Joints." Applied Sciences 9, no. 24 (2019): 5533. http://dx.doi.org/10.3390/app9245533.

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A numerical model for the analysis of frame structures that is capable of reproducing the behavior of reinforced concrete (RC) members and steel-reinforced concrete (SRC) members in all steps until collapse by simulating a reduced resistance capacity is presented in this work. Taking into account the solid models obtained in previous research that have been validated by experimental results, moment-curvature graphics were obtained in all steps: elastic, plastic, and post-critical to collapse. Beam models versus 3D models considerably simplified the calculation of frame structures and correctly

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13

Solorzano, German, and Vagelis Plevris. "An Open-Source Framework for Modeling RC Shear Walls Using Deep Neural Networks." Advances in Civil Engineering 2023 (July 11, 2023): 1–17. http://dx.doi.org/10.1155/2023/7953869.

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Reinforced concrete (RC) shear walls macroscopic models are simplified strategies able to simulate the complex nonlinear behavior of RC shear walls to some extent, but their efficacy and robustness are limited. In contrast, microscopic models are sophisticated finite element method (FEM) models that are far more accurate and reliable. However, their elevated computational cost turns them unfeasible for most practical applications. In this study, a data-driven surrogate model for analyzing RC shear walls is developed using deep neural networks (DNNs). The surrogate model is trained with thousan

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14

Kim, Jaehong, and James M. LaFave. "A Simplified Approach to Joint Shear Behavior Prediction of RC Beam-Column Connections." Earthquake Spectra 28, no. 3 (2012): 1071–96. http://dx.doi.org/10.1193/1.4000064.

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An extensive experimental database of reinforced concrete (RC) beam-column connections subjected to cyclic lateral loading has been constructed. All cases within the database experienced joint shear failure, either in conjunction with or without yielding of longitudinal beam reinforcement, representing damage within a joint panel that was the main contributor to total lateral deformation. (Cases having damage within a joint panel caused by other premature failure modes (e.g., anchorage failure) are not included in the database.) Using the experimental database, envelope curves of joint shear s

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15

Zheng, Kaiqi, Siyuan Zhou, Yaohui Zhang, et al. "Simplified Evaluation of Shear Stiffness Degradation of Diagonally Cracked Reinforced Concrete Beams." Materials 16, no. 13 (2023): 4752. http://dx.doi.org/10.3390/ma16134752.

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Shear cracking in concrete box-girder bridges, which could cause excessive deflection during the serviceability limit state, cannot be effectively avoided by code-guided design. While elastic shear deformation only accounts for a small proportion of total deformation for un-cracked reinforced concrete (RC) beams, the magnitude of after-cracking shear deformation becomes comparable to flexural deformation for RC beams. However, there is still a lack of practical models to predict the after-cracking shear deformation of RC beams. First, six thin-webbed I beams were tested to investigate the shea

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16

Zhang, Pin Le. "Restoring Force Models Investigation of Research Status and Problems Analysis of RC Structure." Applied Mechanics and Materials 275-277 (January 2013): 1045–48. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.1045.

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Restoring force model is a simplified mathematical model derived from restoring force-deformation curves in lots of tests. Selecting a reasonable restoring force model is the basis of conducting dynamic nonlinear analysis of structure. The work further investigates the advantage and disadvantage of the restoring force models presented in this paper. Classified and brief comments about the existing drawbacks of restoring force models and its application are conducted. Lastly, some useful suggestions are proposed for the further research.

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17

Chowdhury, Md Arman, Zubayer Ibna Zahid, and Md Mashfiqul Islam. "Development of Shear Capacity Prediction Model for FRP-RC Beam without Web Reinforcement." Advances in Materials Science and Engineering 2016 (2016): 1–19. http://dx.doi.org/10.1155/2016/4356967.

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Available codes and models generally use partially modified shear design equation, developed earlier for steel reinforced concrete, for predicting the shear capacity of FRP-RC members. Consequently, calculated shear capacity shows under- or overestimation. Furthermore, in most models some affecting parameters of shear strength are overlooked. In this study, a new and simplified shear capacity prediction model is proposed considering all the parameters. A large database containing 157 experimental results of FRP-RC beams without shear reinforcement is assembled from the published literature. A

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18

Valente, Marco. "Seismic Performance Assessment of a Non-Ductile RC Building Retrofitted by Steel Bracing or Fiber-Reinforced Polymers." Applied Mechanics and Materials 234 (November 2012): 84–89. http://dx.doi.org/10.4028/www.scientific.net/amm.234.84.

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This study investigates a displacement-based procedure for the seismic assessment and retrofitting of a six-storey RC structure, designed for gravity loads without specific earthquake-resistant provisions. The procedure is based on a simplified approach using nonlinear static pushover analyses and allows to compare alternative retrofitting strategies countering different structural deficiencies. Accurate numerical models were developed in order to provide reliable predictions of the behaviour of the building identifying the main structural deficiencies. Two retrofitting solutions based on alte

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19

Zhang, Qin, Zong-yan Wei, Jin-xin Gong, Ping Yu, and Yan-qing Zhang. "Equivalent Viscous Damping Ratio Model for Flexure Critical Reinforced Concrete Columns." Advances in Civil Engineering 2018 (July 15, 2018): 1–15. http://dx.doi.org/10.1155/2018/5897620.

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In order to determine the energy dissipation capacity of flexure critical reinforced concrete (RC) columns reasonably, an expression for describing the hysteretic behavior including loading and unloading characteristics of flexure critical RC columns is presented, and then, a new equivalent viscous damping (EVD) ratio model including its simplified format, which is interpreted as a function of a displacement ductility factor and a ratio of secant stiffness to yield stiffness of columns, is developed based on the proposed hysteretic loop expression and experimental data from the PEER column dat

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20

Choi, Yunyeong, Miryeon Kim, Jisun Park, and Hyungsoon Shin. "Analysis of Organic Light-Emitting Diode SPICE Models with Constant or Voltage-Dependent Components." Journal of Nanoscience and Nanotechnology 20, no. 8 (2020): 4773–77. http://dx.doi.org/10.1166/jnn.2020.17801.

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A simplified OLED SPICE model with two resistors and two capacitors that have constant or voltagedependent (VD) values is proposed. Our model includes physical characteristics such as voltage and frequency dependency and agrees well with measurements. In this paper, we analyze the OLED frequency dependency effects and RC delay properties by controlling model parameters for DC, AC, and transient conditions. Importantly, we found that a model with constant parameters is simple and is accurate enough. Based on our simulation results, we suggest a new guideline for an OLED SPICE circuit model and

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21

Bagheri, Ali, Konstantinos N. Genikomsakis, Véronique Feldheim, and Christos S. Ioakimidis. "Sensitivity Analysis of 4R3C Model Parameters with Respect to Structure and Geometric Characteristics of Buildings." Energies 14, no. 3 (2021): 657. http://dx.doi.org/10.3390/en14030657.

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Data-driven models, either simplified or detailed, have been extensively used in the literature for energy assessment in buildings and districts. However, the uncertainty of the estimated parameters, especially of thermal masses in resistance–capacitance (RC) models, still remains a significant challenge, given the wide variety of buildings functionalities, typologies, structures and geometries. Therefore, the sensitivity analysis of the estimated parameters in RC models with respect to different geometric characteristics is necessary to examine the accuracy of identified models. In this work,

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22

Zhu, Xingji, Zaixian Chen, Hao Wang, Yabin Chen, and Longjun Xu. "Probabilistic Generalization of a Comprehensive Model for the Deterioration Prediction of RC Structure under Extreme Corrosion Environments." Sustainability 10, no. 9 (2018): 3051. http://dx.doi.org/10.3390/su10093051.

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In some extreme corrosion environments, the erosion of chloride ions and carbon dioxide can occur simultaneously, causing deterioration of reinforced concrete (RC) structures. This study presents a probabilistic model for the sustainability prediction of the service life of RC structures, taking into account that combined deterioration. Because of the high computational cost, we also present a series of simplifications to improve the model. Meanwhile, a semi-empirical method is also developed for this combined effect. By probabilistic generalization, this simplified method can swiftly handle t

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23

Messaoudi, Abdelghaffar, Rachid Chebili, Hossameldeen Mohamed, André Furtado, and Hugo Rodrigues. "The In-Plane Seismic Response of Infilled Reinforced Concrete Frames Using aStrut Modelling Approach: Validation and Applications." Buildings 14, no. 7 (2024): 1902. http://dx.doi.org/10.3390/buildings14071902.

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Reinforced Concrete (RC) buildings often rely on masonry walls to increase their rigidity and strength, distinguishing them from bare frames. Consequently, the lateral capacity of the RC frames is significantly impacted by the presence or absence of these walls. Numerical models are fundamental to understanding this behavior interaction, but the development of robust simplified models is still scarce. Based on this motivation, the reliability of a simplified numerical modelling approach was examined in this study and compared to several experimental tests. An optimized approach was implemented

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24

Liu, Qiong, Congkai Jin, and Xiujun Li. "Impact of Interfacial Transition Zone on Concrete Mechanical Properties: A Comparative Analysis of Multiphase Inclusion Theory and Numerical Simulations." Coatings 14, no. 6 (2024): 698. http://dx.doi.org/10.3390/coatings14060698.

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With the increasing implementation of sustainable development strategies, recycled concrete (RC) has garnered attention in research circles due to its substantial environmental and economic advantages. The presence and properties of various interface transition zones (ITZs) in RC play a vital role in its mechanical properties. This research uses a combination of multiphase inclusion theory and finite element numerical simulation to investigate and compare the impact of ITZs on concrete’s mechanical properties. The multiphase inclusion theory offers a theoretical framework for understanding ITZ

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25

Alhadid, Mohamed Monir A., and Maged A. Youssef. "Residual Axial Behavior of Restrained Reinforced Concrete Columns Damaged by a Standard Fire." Fire 5, no. 2 (2022): 42. http://dx.doi.org/10.3390/fire5020042.

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A simplified procedure to predict the residual axial capacity and stiffness of both rectangular and circular reinforced concrete (RC) columns after exposure to a standard fire provides the means to replace the current descriptive methods. The availability of such a procedure during the design phase provides engineers with the flexibility to come up with better designs that ensure safety. In this paper, finite difference heat transfer and sectional analysis models are combined to determine the axial behavior of RC columns with various end-restraint conditions at different standard fire duration

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26

Meng, Qing Li, and Min Zheng Zhang. "Nonlinear Performance Simulation of RC Structures with Small-Scaled Model in Earthquake Simulation Test." Advanced Materials Research 243-249 (May 2011): 3717–29. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.3717.

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For small-scale RC structure model in earthquake simulation test, the material behavior of the model is hard to resemble the prototype well so that the model cannot simulate correctly the nonlinear performance of the prototype. On the basis of the dynamic similitude of mechanical behavior between common concrete and micro-concrete which derive from mechanical behavior tests, the simplified equivalent dynamic similitude relations, which are applicable to the nonlinear performance simulation with small-scale RC structure models in the earthquake simulation tests, have been proposed. By the numer

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27

Yel, Nur Seda, Musa Hakan Arslan, Ceyhun Aksoylu, İbrahim Hakkı Erkan, Hatice Derya Arslan, and Ercan Işık. "Investigation of the Earthquake Performance Adequacy of Low-Rise RC Structures Designed According to the Simplified Design Rules in TBEC-2019." Buildings 12, no. 10 (2022): 1722. http://dx.doi.org/10.3390/buildings12101722.

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In this study, earthquake performance of the structures was tested which were modeled according to the minimum criteria of simplified analysis approach proposed in TBEC-2019. For this purpose, 144 reinforced-concrete building models were designed according to parameters such as earthquake design class, building height (number of storey), number of spans, soil type and three different simplified formulas suggested in the code. The level of structural performance of buildings models was determined by the linear (L) and nonlinear performance analysis (NL) methods that given in TBEC-2019. The base

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28

Živković, Darko, Predrag Blagojević, Danijel Kukaras, Radovan Cvetković, and Slobodan Ranković. "Comprehensive Analysis of Ferrocement-Strengthened Reinforced Concrete Beam." Buildings 14, no. 4 (2024): 1082. http://dx.doi.org/10.3390/buildings14041082.

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Starting with the premise that the choice of the optimal method for strengthening reinforced concrete (RC) structures is a complex task and that ferrocement strengthening is comparable to other advanced strengthening technologies due to its cost-effectiveness, ease of construction, and durability, this paper presents a comparative study of the flexural bearing capacity of RC beams strengthened with ferrocement strips applied by gluing. An overview of the life cycle assessment (LCA) based on embodied energy or CO2 is presented in the introduction, based on the existing literature review. The re

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29

Rathnasiri, S. C., J. A. S. C. Jayasinghe, and A. J. Dammika. "Simplification of large-scale solid element model for seismic structural response analysis of buildings  ." Journal of the National Science Foundation of Sri Lanka 52, no. 4 (2025): 469–80. https://doi.org/10.4038/jnsfsr.v52i4.12164.

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The seismic response analysis of large-scale structural systems, including integrated earthquake simulations for urbanized cities, requires developing complex numerical models with over 10 million solid elements. However, such detailed models are often computationally intensive and time-consuming. Therefore, simplified models are necessary to efficiently assess the seismic response of structures in the time domain during the early stages of analysis. The authors are proposing a meta-modelling theory in which a simple mass-spring model (MSM) is constructed from a large-scale solid element model

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Talahmeh, Besan, Belal Almassri, and Haitham Ayyad. "Seismic assessment and retrofitting of RC building using concrete jacketing and CFRP (a finite element modelling study)." Journal of Applied Engineering Science 23, no. 2 (2025): 198–207. https://doi.org/10.5937/jaes0-52568.

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This study presents a simplified methodology for the assessment and retrofitting of an existing multistory reinforced concrete (RC) structures in Palestine, addressing the critical need for improved structural integrity in the face of increased loads and seismic risks. This study focuses on a multi-story commercial and residential building in Hebron, initially designed with seven floors, including a ground-floor store and six upper floors. The research is structured into three primary phases: preparing finite element models, performing comprehensive structural analyses to assess the feasibilit

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31

Ilyas, Muhammad, Awais Ahmad, Abdullah Riaz, et al. "Review of Modeling Techniques for Analysis and Assessment of RC Beam–Column Joints Subjected to Seismic Loads." Materials 15, no. 21 (2022): 7448. http://dx.doi.org/10.3390/ma15217448.

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Beam–column connections are the most critical components of reinforced concrete (RC) structures. They serve as a load transfer path and take a significant portion of the overall shear. Joints in RC structures constructed with no seismic provisions have an insufficient capacity and ductility under lateral loading and can cause the progressive failure of the entire structure. The joint may fail in the shear prior to the connecting beam and column elements. Therefore, several modeling techniques have been devised in the past to capture the non-linear response of such joints. Modeling techniques u

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Minafò, Giovanni, Marinella Fossetti, Maurizio Papia та Giuseppe Patti. "A Theoretical Model to Evaluate the Compressive Behaviour of RС Jacketed Columns". Applied Mechanics and Materials 847 (липень 2016): 79–86. http://dx.doi.org/10.4028/www.scientific.net/amm.847.79.

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Reinforced concrete (RC) jacketing is becoming increasingly common among the different retrofit techniques for poor RC members, due to its economical and practical advantages. Experimental investigations in the literature have shown that the actual axial capacity of RC jacketed members can be substantially lower than that analytically evaluated by adapting the most common theoretical models for confined concrete. This fact can be explained by taking into account the presence of tensile stresses developing in the concrete, due to a mutual interaction between the inner core and the external jack

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Luk, Sung Hei. "Machine Learning-Based Methods for the Seismic Damage Classification of RC Buildings." Buildings 15, no. 14 (2025): 2395. https://doi.org/10.3390/buildings15142395.

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This paper aims to investigate the feasibility of machine learning methods for the vulnerability assessment of buildings and structures. Traditionally, the seismic performance of buildings and structures is determined through a non-linear time–history analysis, which is an accurate but time-consuming process. As an alternative, structural responses of buildings under earthquakes can be obtained using well-trained machine learning models. In the current study, machine learning models for the damage classification of RC buildings are developed using the datasets generated from numerous increment

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Flora, Amedeo, Donatello Cardone, Marco Vona, and Giuseppe Perrone. "A Simplified Approach for the Seismic Loss Assessment of RC Buildings at Urban Scale: The Case Study of Potenza (Italy)." Buildings 11, no. 4 (2021): 142. http://dx.doi.org/10.3390/buildings11040142.

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Comprehensive methodologies based on a fully probabilistic approach (i.e., the performance-based earthquake engineering approach, PBEE), represent a refined and accurate tool for the seismic performance assessment of structures. However, those procedures are suitable for building-specific evaluations, appearing extremely time-consuming if applied at the urban scale. In the proposed contribution, simplified loss assessment procedure will be applied at the urban scale with reference to the residential building stock of the center of Potenza. After the identification of the main reinforced concre

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Jian, Hou, and Yang Zheng. "Simplified Models of Progressive Collapse Response and Progressive Collapse-Resisting Capacity Curve of RC Beam-Column Substructures." Journal of Performance of Constructed Facilities 28, no. 4 (2014): 04014008. http://dx.doi.org/10.1061/(asce)cf.1943-5509.0000492.

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Stochino, Flavio, Alessandro Attoli, and Giovanna Concu. "Fragility Curves for RC Structure under Blast Load Considering the Influence of Seismic Demand." Applied Sciences 10, no. 2 (2020): 445. http://dx.doi.org/10.3390/app10020445.

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The complex characteristics of explosion load as well as its increasingly high frequency in the civil environment highlight the need to develop models representing the behavior of structures under blast load. This work presents a probabilistic study of the performance of framed reinforced concrete buildings designed according to the current Italian NTC18 and European EC8 technical standards. First, a simplified single degree of freedom model representing the structural system under blast load has been developed. Then, a probabilistic approach based on Monte Carlo simulation analysis highlighte

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Rahmat Rabi, Raihan, Marco Vailati, and Giorgio Monti. "Simplified Pushover Analysis for Rapid Assessment of Shear-Type Frames." Applied Sciences 11, no. 24 (2021): 11711. http://dx.doi.org/10.3390/app112411711.

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A simplified pushover method for rapidly assessing the seismic capacity of shear-type frames is presented. The frame global force-displacement capacity is described as a trilinear curve passing through three limit states (LS): Damage LS (DLS), Life safety LS (LLS), and Collapse LS (CLS). The global LSs are obtained consequently to the attainment of story-level, element-level, and section-level LSs. All LS capacities are described through closed-form equations. The validity of the proposed method is verified by applying it on several reinforced concrete (RC) frames with a varying number of stor

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Zhao, Wuchao, and Jiang Qian. "Dynamic Response and Shear Demand of Reinforced Concrete Beams Subjected to Impact Loading." International Journal of Structural Stability and Dynamics 19, no. 08 (2019): 1950091. http://dx.doi.org/10.1142/s0219455419500913.

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Reinforced concrete (RC) beams under the impact loading are typically prone to suffer shear failure in the local response phase. In order to enhance the understanding of the mechanical behavior of the RC beams, their dynamic response and shear demand are numerically investigated in this paper. A 3D finite-element model is developed and validated against the experimental data available in the literature. Taking advantage of the above calibrated numerical model, an intensive parametric study is performed to identify the effect of different factors including the impact velocity, impact mass and b

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El-Sayed, Ahmed K., Mohammed A. Al-Saawani, and Abdulaziz I. Al-Negheimish. "EMPIRICAL SHEAR BASED MODEL FOR PREDICTING PLATE END DEBONDING IN FRP STRENGTHENED RC BEAMS." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 27, no. 2 (2021): 117–38. http://dx.doi.org/10.3846/jcem.2021.14304.

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This paper presents the development of a simplified model for predicting plate end (PE) debonding capacity of reinforced concrete (RC) beams flexurally strengthened using fiber reinforced polymers (FRP). The proposed model is based on the concrete shear strength of the beams considering main parameters known to affect the opening of the shear cracks and consequently affect PE debonding. The model considers also the effect of the location of the cut-off point of FRP plate along the span of the beam. The proposed model was verified against experimental database of 128 FRP-strengthened beams coll

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Pang, Yingbo, Iftikhar Azim, Momina Rauf, et al. "Prediction of Bidirectional Shear Strength of Rectangular RC Columns Subjected to Multidirectional Earthquake Actions for Collapse Prevention." Sustainability 14, no. 11 (2022): 6801. http://dx.doi.org/10.3390/su14116801.

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The understanding of the effects of multidirectional loadings imposed on major load bearing elements such as reinforced concrete (RC) columns by seismic actions for collapse prevention is of utmost importance, and a few simplified models are available in the literature. In this study, the distinguishing features of two machine-learning (ML) methods, namely, multi expression programming (MEP) and adaptive neuro-fuzzy inference system (ANFIS) are exploited for the first time to develop eight novel prediction models (M1-to M4-MEP and M1-to M4-ANFIS) with different combinations of input parameters

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Scattarreggia, Nicola, Tianyue Qiao, and Daniele Malomo. "Earthquake Response Modeling of Corroded Reinforced Concrete Hollow-Section Piers via Simplified Fiber-Based FE Analysis." Sustainability 13, no. 16 (2021): 9342. http://dx.doi.org/10.3390/su13169342.

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The effect of corrosion-induced damage on the seismic response of reinforced concrete (RC) circular bridge piers has been extensively investigated in the last decade, both experimentally and numerically. Contrarily, only limited research is presently available on hollow-section members, largely employed worldwide and intrinsically more vulnerable to corrosion attacks. In this paper, fiber-based finite element (FB-FEM) models, typically the preferred choice by practitioners given their reduced computational expense, are validated against previous shake-table and quasi-static cyclic tests on hol

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Casprini, Elena, Chiara Passoni, Alessandra Marini, and Gianni Bartoli. "DEMSA Protocol: Deterioration Effect Modelling for Structural Assessment of RC Buildings." Buildings 12, no. 5 (2022): 574. http://dx.doi.org/10.3390/buildings12050574.

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The effects of deterioration strongly impact the expected future service life and the structural performances of existing reinforced concrete structures. Currently, straightforward methodologies are required to include such effects in the assessment and renovation of the RC buildings’ heritage. A simplified protocol enabling the detection, evaluation, and modelling of corrosion effects is presented in this paper. The protocol provides the guidance for the design and management of the on-site diagnostic campaign, aimed at identifying a possible corrosion risk scenario. Then, equivalent damage p

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Xue, Hui Zhong, Hong Guan, Xin Zheng Lu, and Yi Li. "Simulating Post Punching Behaviour of RC Slab-Column Connections Using a Micro Model." Applied Mechanics and Materials 846 (July 2016): 231–36. http://dx.doi.org/10.4028/www.scientific.net/amm.846.231.

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Punching shear is a common failure mode occurring at the slab-column connection region of a reinforced concrete (RC) flat plate. Progressive collapse of RC flat plates poses a significant scientific question on the post punching behaviour of such a structural system. The challenge lies in the complex interactions amongst various internal actions including large unbalanced moments and shear forces. Existing numerical models are unable to differentiate the influence of each individual action within the connection region after punching occurs. Therefore, a new numerical model is required to model

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Folhento, Pedro, Manuel Braz-César, and Rui Barros. "Cyclic response of a reinforced concrete frame: Comparison of experimental results with different hysteretic models." AIMS Materials Science 8, no. 6 (2021): 917–31. http://dx.doi.org/10.3934/matersci.2021056.

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<abstract> <p>An accurate hysteresis model is fundamental to well capture the non-linearity phenomena occurring in structural and non-structural elements in building structures, that are usually made of reinforced concrete or steel materials. In this sense, this paper aims to numerically estimate through simplified non-linear analyses, the cyclic response of a reinforced concrete frame using different hysteretic models present in the literature. A commercial Finite Element Method package is used to carry out most of the simulations using polygonal hysteretic models and a fiber mode

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Markou, George, Christos Mourlas, and Manolis Papadrakakis. "Computationally Efficient and Robust Nonlinear 3D Cyclic Modeling of RC Structures Through a Hybrid Finite Element Model (HYMOD)." International Journal of Computational Methods 16, no. 01 (2018): 1850125. http://dx.doi.org/10.1142/s0219876218501256.

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A computationally efficient and robust simulation method is presented in this work, for the cyclic modeling of reinforced concrete (RC) structures. The proposed hybrid modeling (HYMOD) approach alleviates numerical limitations regarding the excessive computational cost during the cyclic analysis and provides a tool for the detailed simulation of the 3D cyclic nonlinear behavior of full-scale RC structures. The simplified HYMOD approach is integrated in this work with a computationally efficient cyclic concrete material model so as to investigate its numerical performance under extreme cyclic l

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Marinković, Marko, Santiago Calvinisti, and Christoph Butenweg. "Numerical analysis of reinforced concrete frame buildings with decoupled infill walls." Gradjevinski materijali i konstrukcije 63, no. 4 (2020): 13–48. http://dx.doi.org/10.5937/grmk2004013m.

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Reinforced concrete (RC) buildings with masonry infill walls are widely used in many countries all over the world. Although infills are considered as non-structural elements, they significantly change dynamic characteristics of RC frame structures during earthquake excitation. Recently, significant effort was spent on studying decoupled infills, which are isolated from the surrounding frame usually by adding a gap between frame and infill. In this case, the frame deformation does not activate infill wall, thus infills are not influencing the behaviour of the frame. This paper presents the resu

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Girdžius, Rokas, Gintaris Kaklauskas, Renata Zamblauskaitė, and Ronaldas Jakubovskis. "A SHORT-TERM DEFORMATION ANALYSIS METHOD OF FLEXURAL REINFORCED CONCRETE MEMBERS." Engineering Structures and Technologies 3, no. 3 (2011): 112–22. http://dx.doi.org/10.3846/skt.2011.13.

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The deformation analysis of cracked reinforced concrete (RC) members is not straightforward and often controversial. The main difficulties arise from the complex structure of concrete matrix, different mechanical properties of concrete and reinforcement, the creep and shrinkage of concrete and tension stiffening. The latter effect is related to intact concrete and reinforcement interaction between cracks. Tension stiffening effect has a significant influence on the results of a shortterm deformation analysis of RC members. The present research is aimed at deriving tension-stiffening relationsh

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Bolina, Fabrício Longhi, Arthur S. Henn, and Bruno Dal Lago. "Simplified Design Procedure for RC Ribbed Slabs in Fire Based on Experimental and Numerical Thermal Analysis." Buildings 15, no. 10 (2025): 1631. https://doi.org/10.3390/buildings15101631.

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Ribbed slabs are a solution for increasing the bending capacity while reducing the total concrete consumption and the dead weight compared to conventional reinforced concrete slabs. The EN 1992-1.2 standard contains a tabulated method (TM) for the fire design of these structures, which suggests combinations of cross-sectional dimensions and concrete cover thickness to determine the fire resistance. Using a finite element (FE) model solved with Abaqus software, a transient thermal analysis of these slabs was performed, correlating the results with the standardized TM. Cross-sections with differ

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De Rosa, Mattia, Marcus Brennenstuhl, Carlos Andrade Cabrera, Ursula Eicker, and Donal P. Finn. "An Iterative Methodology for Model Complexity Reduction in Residential Building Simulation." Energies 12, no. 12 (2019): 2448. http://dx.doi.org/10.3390/en12122448.

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The present paper introduces an iterative methodology to progressively reduce building simulation model complexity with the aim of identifying potential trade-offs between computational requirements (i.e., model complexity) and energy estimation accuracy. Different levels of model complexity are analysed, from commercial building energy simulation tools to low order calibrated thermal networks models. Experimental data from a residential building in Germany were collected and used to validate two detailed white-box models and a simplified white-box model. The validation process was performed i

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Mylonas, Angelos, Jordi Macià-Cid, Thibault Q. Péan, et al. "Optimizing Energy Efficiency with a Cloud-Based Model Predictive Control: A Case Study of a Multi-Family Building." Energies 17 (October 15, 2024): 5113. https://doi.org/10.3390/en17205113.

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The Energy Performance of Buildings Directive (EPBD) has set a target to achieve carbon-neutral building stock and generate 80% of its electricity from renewable sources by 2050. While Model Predictive Control (MPC) can contribute significantly to energy flexibility in buildings, its remote implementation remains relatively unexplored, especially in the residential sector. The purpose of this research is to demonstrate the reliability, robustness, and computational efficiency of a cloud-based application of an MPC called Smart Energy Management (SEM) on a multi-family residential building. The

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