Abstract

Info

Title:: Influences of Sticking Steel Strips Under Precast RC Slabs on Seismic Performance of Masonry Teaching Building

Author(s):: QU Wen-jun; GUO Peng; CUI Wei; Department of Building Engineering, Tongji University

Keywords:: masonry structure; floor system of precast holy slab; teaching building; finite element method; time history analysis

Abstract:: Authors used general finite element analysis software ANSYS to build a numerical model of typical masonry teaching building with precast reinforced concrete (RC) slabs. The finite element time history analysis method was used to get this model’s seismic response under Wenchuan seismic wave, proving that inadequate floor’s in-plane stiffness was the key defect causing collapse of masonry teaching building. Based on this analysis, authors proposed a new strengthening method of sticking steel strips under slabs to enhance the floor’s in-plane stiffness. The time history analysis method was used to make comparisons between the seismic responses of unstrengthened and strengthened models. The results show that the strengthening method of sticking steel strips under slabs is effective for anti-seismic collapse of building structures.