ACCOUNTING FOR INELASTIC RESPONSE OF URM BUILDINGS IN ACCELERATION DEMANDS ON FACE-LOADED WALLS
Response of unreinforced masonry (URM) to out-of-plane excitation is a complex, yet inadequately addressed theme in seismic analysis. Seismic input expected on a face-loaded wall in an URM building is the ground excitation filtered by the in-plane response of the walls and the floor diaphragm response. The dynamic response, i.e., the superposition of vibration modes of the primary lateral load-resisting structure, and the non-linear structural response contribute to the filtering phenomenon. The current paper summarises an investigation aimed at developing a semi-analytical formulation to estimate the acceleration demand on a face-loaded URM wall or a generic secondary system, that explicitly takes into account the level of inelastic demand on the primary structure, in terms of the displacement ductility demand. The proposed formulation is based on statistical evaluation of several non-linear dynamic time-history analysis results treated within a parametric framework.
Seismic input on face-loaded walls inelastic response of URM buildings
Arun Menon Guido Magenes
Department of Structural Mechanics, University of Pavia Dept. of Structural Mechanics, University of Pavia, via Ferrata 1, 27100 (PV) Italy
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）