Research Articles | Challenge Journal of Concrete Research Letters

Seismic fragility curves for mid-rise reinforced concrete framed structures with different lateral loads resisting systems

Ghada Mousa Hekal, Kamel Kandeel, Mostafa Elshami, Ahmed Dawod



The current study presents lateral load analysis of mid-rise reinforced concrete framed structures with two different lateral load resisting systems; shear walls and rigid marginal beams. The main objective here is to investigate the influence of the location of the system in the structure; i.e. arrangement of shear walls and level of the marginal beam. For that purpose, seismic fragility curves are used as an assessment tool for comparing the seismic performance of the studied structures in different situations. Incremental dynamic analysis was performed under ten ground motions to determine the yielding and collapse capacity of each building. Five performance levels were considered in the analysis. These performance levels are (i) operational, (ii) immediate occupancy, (iii) damage control, (iv) life safety and (v) collapse prevention. Fragility curves were developed for the structural models of the studied structures considering the previously mentioned performance levels. It was observed that arrangement of shear walls on the long direction of the structure has insignificant effects on its performance while interior shear walls provide the best behavior of the structure compared to exterior shear walls only and distributing shear walls internally and externally. The analysis outcomes also indicated that the presence of the rigid marginal beam in the lower storey gives more efficiency regarding to lateral loads resistance in the studied structure.


seismic fragility curves; incremental dynamic analysis; shear wall position; rigid marginal beam level; performance-based design; seismic risk analysis

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ATC (2002). Development of Performance-Based Earthquake Design Guidelines. Redwood City: ATC-58.

Bommer JJ, Acevedo AB, and Douglas J (2003). The selection and scaling of real earthquake accelerograms for use in seismic design and assessment. In: Proceeding of ACI international conference on seismic bridge design and retrofit. La Jolla, CA: American Concrete Institute.

Cherng R (2001). Preliminary Study on the Fragility Curves for Steel Structures in Taipei. Earthquake Engineering and Engineering Seismology, 3(1), 35-42.

ECP 203 (2007). Egyptian code of practice for design and construction of concrete structures. National Center of Housing and Building Researches, Cairo, Egypt.

ENV 1998-1 (2005). Eurocode8: Design of Structures for Earthquake Resistance – Part 1: General rules, seismic actions and rules for buildings, Code of Practice, London.

Farsi M, Cherif F, Kaci S, Belaidi O, Taouche-Kheloui F (2015). Seismic vulnerability of reinforced concrete structures in Tizi-Ouzou City (Algeria). 1st International Conference on Structural Integrity, 2015, 838-845.

Federal Emergency Management Agency (FEMA) 273 (1997). NEHRP guidelines for the seismic rehabilitation of buildings. Washington DC: Federal Emergency Management Agency.

Federal Emergency Management Agency (FEMA) 349, FEMA/EERI (2000). Action plan for performance – based seismic design. Washington DC: Federal Emergency Management Agency.

Federal Emergency Management Agency (FEMA) 356 (2000). Pre-standard and commentary for the seismic rehabilitation of buildings. Washington DC: Federal Emergency Management Agency.

Federal Emergency Management Agency (FEMA) 450 (2003). NEHRP recommended provisions for seismic regulations for new buildings and other structures, Part 1: provisions. Washington DC: Federal Emergency Management Agency.

Hamburger RO (1998). Performance-based analysis and design procedure for moment resisting steel frames. Background Document, SAC Steel Project.

Heidebrecht A (2004). Code development issues arising from the preparation of the seismic provisions of the national building Code of Canada. 13WCEE, Vancouver, Canada: 3218-3228.

Ibrahim Y (2009). Performance limits of mid-rise moment-resisting framed structures in low seismicity areas. 11th Arab Structural Engineering Conference, 25-27 October. Dhahran, Saudi Arabia: KFUPM.

Ibrahim Y and El-Shami M (2011). Seismic fragility curves for mid-rise reinforced concrete frames in Kingdom of Saudi Arabia. The IES Journal Part A: Civil & Structural Engineering, 4(4), 213-223

International Building Code (IBC) (2003). CA, USA: International Code Council, Delmar Cengage Learning.

Japan Structural Consultants Association (JSCA) (2000). Structural Design by Response Control Methods. Shoko-kusha Publishing Co. Ltd., Tokyo, Japan [in Japanese].

Khawar R, Yong-Sik C (2016). Building Damage Assessment Using Scenario Based Tsunami Numerical Analysis and Fragility Curves. Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea; (CC-BY) license (

King A, Shelton R (2004). New Zealand advances in performance-based seismic design. 13WCEE, Vancouver, Canada: 13–25.

Kircil M, Polat Z (2006). Fragility analysis of mid-rise R/C frame buildings. Engineering Structures, 28(9), 1335-1345

Madas P (1993). Advanced Modeling of Composite Frames Subjected to Earthquake Loading. Ph.D. Thesis, London, UK: Imperial College, University of London.

Mander J, Dhakal R, Mashiko N, Solberg K (2007). Incremental dynamic analysis applied to seismic financial risk assessment of bridges. Engineering Structures, 29(10), 2662-2672.

Mander J, Priestley M, Park R (1988). Theoretical stress-strain model for confined concrete. Journal of Structural Engineering, 114(8), 1804-1826.

Moridani K, Khodayari R (2013). Seismic performance assessment uses incremental dynamic analysis. Journal of Basic and Applied Scientific Research, 3(8), 757-764.

Raipure P (2015). Seismic vulnerability assessment of open ground storey RC buildings by using fragility curves. M-Tech Thesis, Government College of Engineering, Amravati, 2013-14.

Rota M, Penna A, Magnes G (2010). A methodology for deriving analytical fragility curves for masonry buildings based on stochastic nonlinear analyses. Engineering Structures, 32, 1312-1323.

SeismoStruct Ver. 5.0.4, 2010. SeismoSoft, earthquake engineering software solutions [online]. Italy. Available from: [Accessed 10 August 2011].

Shome N, Cornell CA (1999). Probabilistic Seismic Demand Analysis of Nonlinear Structures. Ph.D. Thesis, Stanford: Stanford University.

Structural Engineers Association of California, SEAOC, Vision 2000 (1995). Performance based seismic engineering of buildings. Sacramento, CA: Vision 2000 Committee.

Talaeitaba S, Tahvilian H, Saeedi B (2014). The effect of the arrangement and length of the concrete shear walls on the response modification factor (R). Electronic Journal of Structural Engineering, 14, 93-105.

Uriz P, Mahin S (2004). Seismic performance assessment of concentrically braced steel frames. 13th World Conference on Earthquake Engineering, Vancouver, B.C., Canada

Vamvatsikos D, Cornell C.A (2002). Incremental dynamic analysis. Journal of Earthquake Engineering and Structural Dynamics, 31(3), 491-514.

Vazurkar U, Chaudhari D (2016). Development of fragility curves for RC buildings. International Journal of Engineering Research, 5(3), 591-594.

Xue Q, Wu CW, Chen CC, Chen KC (2008). The draft code for performance-based seismic design of buildings in Taiwan. Engineering Structures, 30(6), 1535–1547.