A Research In Continuous Collapsed Of Reinforced Concrete Structure Under Earthquake

The continuous collapsed structure under the earthquake have become the mainreasons causing casualties, which have caused a huge economic losses and socialinfluence to society. Structure design of continuous collapsed under earthquake、explosion etc accidental event, can play an important part in controlling the area ofdamage, extending the supportting time of structure that people can have enough time toescape from the dangerous building.which reduce casualties and property losses.So theresearch of continuous collapsed structure under earthquake appear increasingly urgent.In this paper the earthquake simulation function of SAP2000software, using Pushovermethod to simulate collapse of structure, we got the development of continuous collapsedreinforced concrete structure under earthquake.The main research method of this paper is alternative path load method, which usethe main method---nonlinear static analysis to simulate the collapse of reinforcedconcrete structure. First studied the role of different vertical component as JiaoZhu、TheTimes column、The column of Plane framework，in supportting the structure undercontinuous collapse.in which we conclude that the failure of JiaoZhu in plane frameworkis greater than in The Times column、The column.Considering the actual application, thespace frame situation is more representative, and through the simulation of space framestructure, the demolition different parts of the vertical support respectively to rearchdifferent parts in supportting the structure under continuous collapse. and conclude thatthe failure of short side in the same position vertical component than long side is morelikely to trigger continuous collapsed; At the same time in the same position of differentvertical structure, the failure of the column in causing continous collapse is more easierthan JiaoZhu.Finally though researching the factors that influence continous collapse of structureunder seismic action, and draw the conclusion that different span, layer, magnitude, thestructural type of structure play an important part, and conclude that the resistance tocontinuous collapsed ability of structure system, the space effect is very important, so thetype of structural connection, physical characteristics, creating ways of the forcetransmission.and special structure design under special circumstances is very important.