000020100 001__ 20100
000020100 005__ 20170118182354.0
000020100 04107 $$aeng
000020100 046__ $$k2017-01-09
000020100 100__ $$aPark, Joonam
000020100 24500 $$aSeismic Behavior of Low-Rise Urm Structures With Geometric Variation

000020100 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000020100 260__ $$b
000020100 506__ $$arestricted
000020100 520__ $$2eng$$aSeismic risk assessment of unreinforced masonry (URM) buildings is an important process for seismic retrofit of essential facilities located in the south and central US (CSUS) region, as more than 30% of the facilities are low-rise URM buildings. Although HAZUS provides a set of fragility curves for such structures as an essential tool for conducting the seismic risk assessment, the variation of the seismic performance level due to the geometric characteristics is not explicitly considered. This study investigates the effect of geometric variation of low-rise URM structures on the seismic fragility assessment. Utilizing the URM building inventory information within the CSUS region variables that describe the physical shape of an URM structure are identified. A simplified composite spring model developed for URM structures is then utilized to monitor the nonlinear seismic behavior. At last the seismic fragility curves corresponding to various configurations of the shape of URM structures are developed and compared. The analysis confirms that the length of the out-of-plane walls and the number of stories of URM buildings have significant effects on the seismic risk, whereas the perforation ratio does not affect much the seismic performance. It is suggested that using a single set of fragility curves is not adequate for seismic risk assessment of low-rise URM buildings unless the geometric variation is explicitly considered.

000020100 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000020100 653__ $$aunreinforced masonry, geometric variation, composite spring model

000020100 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000020100 720__ $$aPark, Joonam
000020100 8560_ $$ffischerc@itam.cas.cz
000020100 8564_ $$s502767$$uhttps://invenio.itam.cas.cz/record/20100/files/56.pdf$$yOriginal version of the author's contribution as presented on USB, paper 56.
000020100 962__ $$r16048
000020100 980__ $$aPAPER