Abstract
This article examines the seismic fragility of low- and mid-rise RC infilled frame buildings in Jordan comprising stone-concrete infill panels. Three dimensional models of 2, 4 and 6 story regular and irregular representative buildings were developed. Pushover analyses were performed to construct capacity curves of the model buildings. Four damage states were considered: slight, moderate, extensive and complete and damage state thresholds were assigned, using expert opinion, based on yield and ultimate spectral displacements of the capacity spectra. Sets of preliminary fragility curves were developed to quantify earthquake damage probabilities in terms of spectral displacements.
Highlights
About forty percent of the residential building fabric in Jordan utilizes thin limestone masonry units backed with plain concrete to construct the perimetric exterior walls
Construction methods of the exterior stone-concrete (SC) walls changed over the years leading to the current practice wherein gravity load-designed reinforced concrete (RC) building frames are infilled with the multilayer panel
This study explores the seismic vulnerability of local and regional building typologies incorporating SC walls
Summary
About forty percent of the residential building fabric in Jordan utilizes thin limestone masonry units backed with plain concrete to construct the perimetric exterior walls (referred to hereinafter as stone-concrete walls). This type of construction is concentrated in main cities which are located within a narrow strip alongside the Dead Sea transform fault that constitutes the main active source of seismicity in the country. Ground motion-damage relations (i.e. seismic vulnerability functions) are based on actual earthquake damage data and may be augmented through expert opinion and structural analyses The lack of such data in Jordan; prompts the use of analytical methods in quantifying seismic vulnerability of rather uncommon (worldwide) but locally dominating building typologies such as those incorporating SC walls
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