Study On Failure Mechanism Of Different Construction Mode For Typical Gallery Outside Masonry School Buildings

Single span type masonry structure of the corridor outside the building is a moretypical structure of primary and secondary school buildings in Sichuan Province.Due tothe requirement of building large space、ventilation and daylighting，In the classificatorybuilding cross wall are rare，because opening the window weaks longitudinal wallseriously，adopting the overhanging corridor,Thus produce a series of structural defects.Such as poor integrity, lack of redundancy, unequal mass distribution and so on, Proneto damage or collapse, This has been proved in the wenchuan earthquake.Two school buildings in the bailu middle school of Peng Zhou after the wenchuanearthquake seismic damage situation differs very big,the former building has damageseriouslyn,while the later building basically integrity, with highly research value, Soconduct the building seismic performance research.This paper aims to study The masonry structure buildings failure mechanism andStructural measures to increase the seismic capacity of masonry structure by checkingthe design data,the aseismic calculation of theoretical analysis and finite elementmethod time history analysis combining with computer simulation. The main thesiscompleted the following work:1. Introducing the bailu middle school teaching building earthquake damage andreflection, Here introduces the damage and reflection of two school buildings in thebailu middle school of Peng Zhou after the wenchuan earthquake for studing infuture.Summarize the structure characteristics of masonry structure buildings in ourcountry and its power transmission path explain the antiseismic ability.2. Aseismic capacity comparison between the two school buildings in the bailumiddle school and its affecting factors. The bottom shear method is adopt to carrying onantiseismic checking in detail, Then modeling the two building of the bailu middleschool using large-scale finite element analysis software ABAQUS,conduct modalanalysis and time history analysis of the original model comparing its aseismiccapacity,moreover, verifing its rationality of model. Summaring its affecting factors indesigning data of two buildings.3. Study on aseismic capacity of different construction mode for the bailu middleschool. adapting large-scale finite element analysis software ABAQUS for simulationstudy, four different structural modes of adding outside corridor column,addingstructural columns,subtracting one layer and change its thickness of longitudinal wall aredesigned for study, checking its antiseismic capability compared with prototype data.