Generation of fragility curves for Turkish masonry buildings considering in-plane failure modes

2008-03-01
This study focuses on the seismic safety evaluation of masonry buildings in Turkey for in-plane failure modes using fragility curves. Masonry buildings are classified and a set of fragility curves are generated for each class. The major structural parameters in the classification of masonry buildings are considered as the number of stories, load-bearing wall material, regularity in plan and the arrangement of walls (required length, openings in walls, etc.), in accordance with the observations from previous earthquakes and field databases. The fragility curves are generated by using time history (for demand) and pushover (for capacity) analyses. From the generated sets of fragility curves, it is observed that the damage state probabilities are significantly influenced from the number of stories and wall material strength. In the second stage of the study, the generated fragility curves are employed to estimate the damage of masonry buildings in Dinar after the 1995 earthquake. The estimated damage by fragility information is compared with the inspected visual damage as assessed from the Damage Evaluation Form. For the quantification of fragility-based damage, a single-valued index, named as 'vulnerability score' (VS), is proposed. There seems to be a fair agreement between the two damage measures. In addition to this, decisions regarding the repair or demolition of masonry buildings in Dinar due to visual damage inspection are on comparable grounds with the relative measure obtained from VS of the same buildings. Hence, the fragility-based procedure can provide an alternative for the seismic safety evaluation of masonry buildings in Turkey. Copyright (C) 2007 John Wiley & Sons, Ltd.
EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS

Suggestions

Seismic vulnerability of masonry structures in Turkey
Ceran, Hasan Burak; Erberik, Murat Altuğ; Department of Civil Engineering (2010)
This study focuses on the evaluation of seismic safety of masonry buildings in Turkey by using fragility curves. Fragility curves for masonry buildings are generated by two behavior modes for load bearing walls: in-plane and out-of-plane. By considering the previous research and site investigations, four major parameters have been used in order to classify masonry buildings with in-plane behavior mode. These are number of stories, strength of load-bearing wall material, regularity in plan and the arrangemen...
Effect of out-of-plane behavior on seismic fragility of masonry buildings in Turkey
Ceran, Hasan Burak; Erberik, Murat Altuğ (Springer Science and Business Media LLC, 2013-10-01)
This study focuses on the evaluation of seismic safety of unreinforced masonry buildings in Turkey by using fragility curves generated for two behavior modes of load bearing walls: in-plane and out-of-plane. During generation of fragility curves, a force-based approach has been used. There exist two limit states in terms of base shear strength for in-plane behavior mode and flexural strength for out-of-plane behavior mode. To assess the seismic vulnerability of unreinforced masonry buildings in Turkey, frag...
Probabilistic methods for the estimation of potential seismic damage: Application to reinforced concrete buildings in Turkey
Askan Gündoğan, Ayşegül; Yücemen, Mehmet Semih (2010-01-01)
Three probabilistic methods, for the prediction of potential seismic damage to low and mid-rise reinforced concrete buildings in Turkey, are presented As the first method. "best estimate" damage probability matrices for each seismic zone are developed by combining expert opinion and the damage statistics compiled from the recent earthquakes occurred in Turkey. Second method involves a reliability-based model, which treats the earthquake force and seismic resistance as random variables This model expresses p...
Determination of Reliabffity Based New Load and Resistance Factors for Reinforced Concrete Structural Members
Firat, Fatih Kursat; Yücemen, Mehmet Semih (2014-07-01)
In this study, a procedure for the determination of new load and resistance factors for reinforced concrete structural members is proposed in view of the fact that the design practice in Turkey has changed after the occurrence of major earthquakes. The implementation of the procedure is carried out for the shear failure mode of reinforced concrete beams subjected to dead and live load combination. First, the statistical parameters for the quantification of uncertainties involved in the design variables are ...
Prediction of potential damage due to severe earthquakes
Yücemen, Mehmet Semih; Pay, AC (2004-01-01)
A statistical model is developed to estimate the seismic vulnerability of low- to mid-rise reinforced concrete buildings. The model is based on a novel utilization of the discriminant analysis technique of multivariate statistics. Number of stories above the ground level (N), soft story index (SSI), overhang ratio (OHR), minimum normalized lateral stiffness index (MNLSTFI), minimum normalized lateral strength index (MNLSI) and normalized redundancy score (NRS) are selected as the basic estimation variables....
Citation Formats
M. A. Erberik, “Generation of fragility curves for Turkish masonry buildings considering in-plane failure modes,” EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS, pp. 387–405, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/33324.