Study On Seismic Capacity Of ’the Strongest Teaching Building In Wenchuan Earthquake’

The paper analyzes the seismic performance of the typical brick-concretebuilding, i.e. the back teaching building of Bailu middle school (the strongestteaching building), under different earthquake action through field survey andnumerical simulation. And the structural features and the specialconstructions of the building and their influences on the seismic performanceof the building are investigated by comparing different contrast models withthe real one. The main contents are as follows:(1) Failure modes and laws of the brick-concrete buildings in Wenchuanearthquake are summarized and analyzed. And the seismic damage of thefront and the back building are introduced in detail. The seismic performancesof the two buildings are analyzed and compared briefly.(2) The basic principle of inertial sensors is introduced as well as themethod and the basis for obtaining the structural dynamic parameters.(3) Based on the ABAQUS finite element analysis platform, athree-dimensional finite element model of the back building is established.Through the elastic-plastic history analysis, displacement and velocity etc. ofthe building are analyzed in detail as well as the damage and failure states.(4) Influence of the change of the strength of the mortar and theconstruction on the response of the building under different earthquakeactions are analyzed by comparing the contrast conditions with the real one.(5) Two design and construction measures are obtained which canincrease improve the seismic performance of the teaching and hospital likebrick-concrete buildings with large bays and less transverse walla.And thetwo methods’ effectiveness are proved through comparison analysis.