Review Paper:
Effect of damage
limit states on the seismic fragility of reinforced concrete frame-shear wall buildings
Mibang Durga and Choudhury Satyabrata
Disaster Advances; Vol. 14(9); 57-68;
doi: https://doi.org/10.25303/149da5768; (2021)
Abstract
Assessment of the seismic vulnerability of frame-shear wall buildings can be performed
by non-linear dynamic analysis and it needs detailed analytical modeling, structural
performance measures and various earthquake intensities. The codal based design
method can hardly be used for designing buildings of pre-defined target objectives
whereas the Unified performance-based design (UPBD) method can be designed for buildings
of pre-defined target objectives. In the current study, the UPBD method for frame-shear
wall buildings has been applied for different performance levels (PL) i.e. Immediate
occupancy (IO), Life safety (LS) and Collapse prevention (CP) with 1%, 2% and 3%
drift in both the directions of the buildings.
The nonlinear dynamic analysis of the reinforced concrete (RC) frame-shear wall
buildings is performed considering spectrum compatible ground motions (SCGM) as
per EC-8 demand spectrum at 0.45g level and type B soil condition. Vulnerability
assessment of the frame-shear wall buildings is conducted by generating fragility
curves and the probability failure of structure is checked based on different configurations
and damage limit states of the structure. Finally, the outcome of the work gives
a proper idea of the nonlinear behavior of the dual system so that optimum design
could be acquired for achieving higher safety aspects.
