In order to meet the requirements of the Code for seismic design of buildings(GB 50011-2010)for the application of single-span frame structure and the functional requirements of building,a structural system suitable for the high-rise single-span corridor of key fortification was proposed.The structural system is a two-span frame+truss structure in X direction,and a frame-support structure in Y direction.The static elastic analysis and dynamic elastoplastic analysis was used to compute the corridor.The results of static elastic analysis of the structure show that the construction simulation sequence has little effect on the internal force of the structure,and the corridor is essentially a single-layer double-span frame structure in X direction.The performance-based design results of the corridor show that it can achieve the performance goal of elasticity under moderate earthquake and non-yield under major earthquake.The results of nonlinear buckling analysis and progressive collapse analysis of the corridor show that the buckling of the truss compression oblique web member will cause the overall instability of the structure;the failure of truss compression oblique web member,frame corner column and frame side column will not cause structural progressive collapse.Finally,the dynamic elastoplastic analysis of the corridor under rare earthquake and extremely rare earthquake was carried out.The results show that the structural performance is good,and the damage of the components is controlled within'moderate damage',which can meet the design requirements of the code for non-collapse during large earthquake.
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