| In1968,British Roman Point apartment with serious damagehappened,the continuity of collapse.Thus will collapse continuity problemto the world,the damage caused a great deal of attention in the world.Gradually,the structure under the action of accidents in occasionally theprogressive of collapse problems become the phase.With the development of social economy has been more and morehigh-rise buildings,frame-corewall structure because of its good anti-seismicperformance,has been widely adopted by high-rise building structure.Atpresent the world to the frame-corewall structure seismic continuouscollapsed research also few,the resistance accidental loads of anti-collapseperformance also insufficient understanding. In order to study theframe-corewall peripheral frame after failure of structure collapse resistanceperformance of continuity,it is necessary to carry out the research.In this paper,the finite element analysis software SAP2000andChinese standard to a18-layer frame-corewall structure carried on thedetailed analysis of the system.Compared the structure peripheral framedifferent position column after the failure of the structure of the continuouscollapse resistance performance,and then based on the performance ofstructure adjustment,and the adjustment plan economy briefly evaluation.Through the above frame-corewall structure studies,the mainconclusion are as follows:1.Different analysis methods result to different structure performance,and the linear static analysis method is more conservation according toTechnical specification for concrete structures of tall building.2.Removing the corner columns, the continuous collapse resistanceability of the remaining structure is bad, but removing the side columns isgood when the span of the outer frame beams have no difference. 3.When the frame column failure,the less the bottom larger of the shearcapacity will be slightly shortage,the design should be some larger shearperformance appropriate strengthen,Internal core barrel concrete shear wallnot be destroyed.4.Peripheral frame beam frame column in failure and resistance,continuity collapsed ability is bad,and frame column and internal core barrelof frame beams between continuous collapse resistance ability strong adjustthe beam of inner or peripheral for collapse is not significant.5.The original structure in normal load design,still more likely tosatisfy.The standard additional lateral load requirements,ifcompletely,according to the resistance to continuous.Capacitydesign,peripheral frame beams reinforced needed about moral design of3.1or3.3times,economy is poor. |
