Investigation of progressive collapse in reinforced concrete buildings with slab-wall structural system

Document Type : Regular Paper

Authors

1 Civil Engineering dept. Engineering faculty, Razi University, kermanshah, Iran

2 Razi University, Kermanshah, Iran

3 Civil engineering dept., engineering faculty, Persian gulf university boushehr, iran

Abstract

Nowadays, Reinforced Concrete (RC) wall-slab systems are being used more extensively due to their effective performance seen in past earthquakes. Progressive collapse is a phenomenon in which all or part of a structure is damaged due to damage or collapse of a small relevant part. The majority of research done in the field of progressive collapse has been on frame-shaped structures. Further, the performance of RC wall-slab structural systems, especially against progressive collapse, has been less studied. In this study, at first, nine concrete buildings of five, ten and fifteen stories with wall-slab structural systems, with the ratio of spans length to the story height (L/H) of 1, 1.5 and 2 and a structural height of 2.75 meters in each story, were designed by the ETABS V16 software. Then, using the SAP2000 software and nonlinear shell-layered elements, nonlinear static analysis was performed by the Alternative Load Path (ALP) method on the models and the results were evaluated. The results demonstrated the relatively high strength of buildings with wall-slab structural systems in withstanding progressive collapse. The rate of vertical displacement of the removal location, the maximum von Mises stress in rebar, the maximum compressive stress and strain in concrete in the interior wall removal scenarios were less extensively compared to the corner wall removal scenarios. In contrast, progressive collapse potential increased significantly with increasing number of stories and the L/H ratio. Also, it was found that, buildings with the wall-slab structural system may exhibit brittle failure behavior influenced by progressive collapse.

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[1] The Unified Facilities Criteria (UFC). Design of structures to resist progressive collapse. UFC 4-023-03, 2013.
[2] General Service Administration (GSA). Alternate path analysis and design guidelines for progressive collapse resistance. 2013.
[3] ASCE (2013), “Minimum Design Loads for Buildings and Other Structures,” American Society of Civil Engineers.
[4] American Concrete Institute (ACI 318-14). Building code requirements for structural concrete [S]. 2014.
 [5] Mohsenian, V, Beheshti-Aval SB. (2012). “Determination of Behavior Factor for RC tunnel form buildings.” M.S. Thesis. University of Science and Culture. Iran.
[6] Mohsenian, V, Beheshti-Aval SB. (2017). “multi-level R-factor determination for RC tunnel-form buildings” Sharif Journal Civil Engineering, Vol.33, No.2. PP.53-59.
[7] Mohsenian, V, Nikkhoo, A. (2019). “Estimation of seismic response parameters and capacity of irregular tunnel‑form buildings” Bulletin of Earthquake Engineering, doi: 10.1007/s10518-019-00679-0.
[8] Mohsenian V, Beheshti-Aval SB. (2018) “Seismic performance-based assessment of tunnel form buildings subjected to near- and far-fault ground motions”, Asian Journal of Civil Engineering, Vol.33, No.2, PP.79-92.
[9] Massumi A., Jamalinejad A. (2017). “Evaluation the effective parameters in the seismic behavior of RC tunnel formwork using nonlinear static analysis” Sharif Journal Civil Engineering, Vol.31, No.2. PP.111-121.
[10] Bahadır Yüksel S. (2014). “Structural Behavior of Lightly Reinforced Shear Walls of Tunnel Form Buildings” IACSIT International Journal of Engineering and Technology, Vol.6, No.1.
[11] Janni Praveenkumar, M. K. M. V. Ratnam, Dr. U. RangaRaju. (2015). “Detailed Analysis and Design of Slab Wall System & Column Beam Method” International Journal for Innovative Research in Science & Technology, Volume 1, Issue 8
[12] Hashemi, S, Khosravi, R. (2015). “Progressive collapse evaluation of RC structures with bubble deck floor system.” M.S. Thesis. Persian Gulf University.
[13] Shahin, A., Rahai, A. (2015). “Progressive collapse resisting capacity of reinforced concrete load bearing wall structures”. J. Cent. South Univ. (2015) 22:2730−2738. doi: 10.1007/s11771-015-2803-4.
[14] Mashhadiali, N., Kheyroddin, A. (2016). “Dynamic Increase Factor for Investigation of Progressive Collapse Potential in Tall Tube-Type Buildings”. American Society of Civil Engineers. doi: 10.1061/(ASCE)CF.1943-5509.0000905.
[15] Garivani, S., Askariani, S.S. (2016). “Investigating the impact of structural systems on the potential for progressive collapse in reinforced concrete buildings”. Modares Civil Engineering Journal. Vol.19, No.3, June. 2019.
[16] Mohammadi, R, Hashemi, S. (2017). “Effect of infill panels on the progressive collapse of RC structures subjected to extensive initial damage.” M.S. Thesis. Persian Gulf University.
[17] Choobineh, M, Hashemi, S. (2017). “Effect of infill panels on the progressive collapse of steel structures subjected to extensive initial damage.” M.S. Thesis. Persian Gulf University.
[18] Shayanfar, M., Javidan, M.M. (2017). “Progressive Collapse-Resisting Mechanisms and Robustness of RC Frame–Shear Wall Structures”. American Society of Civil Engineers. doi: 10.1061.1943-5509. 0001012.
[19] Khodadadi, A, Fayouz, A. (2019). “calculation Dynamic Increase Factor to assess the progressive collapse of steel structures with steel shear walls”. National Conference on Modern Civil Engineering, Architecture, Urban Planning and the Environment in the 21st Century.
[20] Rouhi, H., Kheyroddin, A. “Progressive collapse analysis of reinforced concrete in buildings L-shaped plan”. Journal of Structural Engineering and Construction. Vol.5, No.3,2019, doi:10.22065/jsce.2017.86035.1174
[21] Dazio, A., Beyer, K, Bachmann, H, “Quasi-static cyclic tests and plastic hinge analysis of RC structural walls. Engineering Structures 31 (2009) 1556_1571.
[22] CSI analysis reference manual, Berkeley, 2015.