Anti-seismic strengthening and dynamic time-history analysis of a steel frame structure
Abstract：In order to improve the anti-seismic performance of a building with plane abnormity steel frame structure which was not constructed according to the design drawing, the anti-seismic strengthening for the building was carded out with locally adding the steel support. The SAP2000 software was used to establish a spatial model, and then the dynamic time-history analysis for the steel frame structure under both existing and strengthed conditions was performed. In addition, the anti-seismic performance of the structure under various seismic conditions was investigated, and the influence concerning the displacement response of top floor, displacement distribution between floors and shear force distribution of base for the structure was studied. The analysis results show that the anti-seismic deformation of the structure system can be controlled by the optimized strenthening scheme, the torsion effect decreases evidently. And the strengthening scheme can provide the references for the anti-seismic strengthening in similar engineering.
Keywords：steel frameplane abnormityanti-seismic strengtheningsteel supportearthquake wavetime-history analysisdynamic characteristicanti-seismic performance
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)