A Numerical Laboratory for Simulation of Flanged Reinforced Concrete Shear Walls

Document Type : Research


1 Distinguished Professor, Department of Civil Engineering, Sharif University of Technology, Tehran, Iran.

2 M.Sc. student, Department of Civil Engineering, Sharif University of Technology, Tehran, Iran

3 Ph.D. student, Department of Civil Engineering, Sharif University of Technology, Tehran, Iran


The present paper establishes the Flanged reinforced concrete (RC) Shear Wall Laboratory (FlashLab) Software Program. Despite their extensive applications in recent years, flanged RC shear walls have rarely been experimentally and numerically studied, mainly due to the difficult and time-consuming fabrication of experimental samples, numerical models, and also their analysis. FlashLab is a finite element method (FEM)-based simulator of flanged RC shear walls. Drawing on ABAQUS, FlashLab employs shell elements with longitudinal and transverse reinforcements to accurately and rapidly model the cyclic behavior of flanged RC shear walls. The FlashLab algorithms are on the basis of the Python programming language and can examine flanged RC shear walls, with a general cross-section, which make it possible to parametrically investigate various variables. In order to validate FlashLab, this paper numerically simulates T-, H-, and L-shaped RC shear walls and compares the results to the experimental data, indicating good agreement between the numerical and experimental results to an extent that the proposed numerical laboratory is capable of predicting the backbone curve with an accuracy more than 90 percent. Moreover, to verify the simulation performance of FlashLab, the shear-lag effect was parametrically studied as a unique phenomenon in flanged RC shear walls. The findings of the current study clearly demonstrates the robustness and efficiency of FlashLab in the behaviour simulation of flanged RC shear walls.


1. Khaloo, A. R., Tabiee, M, Abdoos, H, Shear lag effect on non-rectangular RC shear walls: a review of the literature, 7th international congress on civil engineering, architecture and urban development, Tehran, Iran.[In Persian]
2. R. Constantin, K. Beyer, Non-rectangular RC walls: A review of experimental investigations, in: 2nd European Conference on Earthquake Engineering and Seismology, 2014.
3. Galal, K. and H. El-Sokkary." Advancement in modeling of RC shear walls," in The 14th World Conference on Earthquake Engineering, Beijing, China. 2008.
4. Chen, S. and T. Kabeyasawa, "Modeling of reinforced concrete shear wall for nonlinear Analysis," 12th WCEE, Auckland, New Zealand, 2000.
5. Brueggen, B., "Performance of T-shaped reinforced concrete structural walls under multi- directional loading,"Ph.D. thesis, University of Minnesota, 2010.
6. Kwan, A.K., "Shear lag in shear/core walls," Journal of Structural Engineering, 1996. 122(9): p. 1097-1104. [DOI:10.1061/(ASCE)0733-9445(1996)122:9(1097)]
7. Arnott, K., "Shear wall analysis- new modelling, same answers," Structural Engineer, 2005. 83(3): p. 20-22.
8. Palermo, D., A. Abdulridha, and M. Charette, "Flange participation for seismic design of reinforced concrete shear walls," 2007.
9. Kheyroddin, A. and A. Mortezaei, "Investigation of influential variables in flange effective width of reinforced concrete shear walls,"9th Canadian conference on earthquake engineering, Ottawa, Canada, 2007.
10. Hoult, R.D., "Shear lag effects in reinforced concrete C-shaped walls," Journal of Structural Engineering, 2019. 145(3): p. 04018270. [DOI:10.1061/(ASCE)ST.1943-541X.0002272]
11. Lu, N. and W. Li, "Analytical study on the effective flange width for T-shaped shear Walls," Periodica Polytechnica Civil Engineering, 2020. 64(1): p. 253-264. [DOI:10.3311/PPci.14704]
12. Ma, J., "Experimental and analytical investigations on seismic behavior of non- rectangular reinforced concrete squat walls,"Ph.D. thesis, Nanyang technological university, 2017.
13. Park, R. and T. Paulay, Reinforced Concrete Structures. 1975: Wiley. [DOI:10.1002/9780470172834]
14. Kent, D.C. and R. Park, Flexural members with confined concrete. Journal of the Structural Division, 1971. 97(7): p. 1969-1990. [DOI:10.1061/JSDEAG.0002957]
15. Barth, K.E. and H. Wu, Efficient nonlinear finite element modeling of slab on steel stringer bridges. Finite elements in analysis and design, 2006. 42(14-15): p. 1304-1313. [DOI:10.1016/j.finel.2006.06.004]
16. Chen, W.F., Plasticity in Reinforced Concrete. 2007: J. Ross Pub.
17. Hibbitt, K. and Sorensen, ABAQUS/Standard User's Manual. 2001: Hibbitt, Karlsson & Sorensen.
18. Wahalathantri, B., et al. A material model for flexural crack simulation in reinforced concrete elements using ABAQUS. in Proceedings of the first international conference on engineering, designing and developing the built environment for sustainable wellbeing. 2011. Queensland University of Technology.
19. Khatami, S. and A. Kheyroddin, Investigation of Element Size Effect on the Nonlinear Behavior of Flanged Shear Walls. Modares Civil Engineering journal, 2012. 12(1): p. 27-37.
20. Khaloo, A. R., Tabiee, M, Abdoos, H. Analytical study of distribution of shear lag-induced stress in non-rectangular reinforced concrete shear walls, 12th international congress on civil engineering, Mashhad, Iran. 2021: p. 8 [In Persian].