AN OBJECTIVE SEISMIC DAMAGE INDEX FOR THE EVALUATION OF THE PERFORMACE OF RC BUILDINGS
In modern earthquake-resistant design codes, structural elements have a non-linear behavior during an earthquake, similar to what is considered in the design process, which implies that elements are damaged and it is interesting for designers to be able to estimate structure expected global damage and correlate it to design ductility, as well as to ductility demand. Damage indexes calculated when applying the finite element method have values not reflecting deterioration in case of buildings designed for low ductility; this feature being contrary to damage indexes calculated for ductile buildings. Therefore, an objective damage index is proposed, based on ductility and elastic and ultimate stiffness values, independent to selected structural typology. The procedure is illustrated by means of an index assessment from damage caused to three buildings, two designed for low ductility (buildings with waffle slabs and framed buildings with wide beams) and a framed building, designed for high ductility. For the three buildings static non-linear response has been determined by means of a force-based procedure. Results obtained demonstrate that the proposed objective damage index provides values which describe properly the damage suffered by the buildings at the instant of collapse.
Damage Index Seismic Damage Pushover Analysis Limit States RC Buildings.
J. C. Vielma A. H. Barbat S. Oller
Lisandro Alvarado University, UCLA, Decanato de Ingenier¨aa Civil, Barquisimeto, Venezuela Professor, Technical University of Catalonia, UPC, E.T.S. Ingenieros de Caminos, Canales y Puertos C
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）