| Steel beam and reinforced concrete column(RCS)frame structures, composed of reinforced concrete columns and steel beams, is a superior performance composite structure type. With the advantages of good applicability, high construction speed, low project cost and good mechanical performance, this composite frame structures has been developed rapidly and widely applied in engineering field. But in our country, RCS frame structure has not developed perfect specification of designing and construction, and studies of the overall frame structure seismic performance still need to be further strengthened.This paper introduces the static analysis method, response spectrum analysis method, time history analysis method and static elastic-plastic analysis method, etc. Meanwhile, the paper simply expounds the development of the finite element theory, some commonly used finite element software and the key procedures of finite element analysis. Triple-pack models of different number of plies space RCS frame structure and the RC frame structure are set up using ETABS, and the modal analysis,Pushover analysis under frequent earthquake and rare occurrence earthquake are also made to compare their deformation, ductility and stiffness performance. The RCS plane model and space frame of RCS are established. Through comparing, it analyses how floor space composite effect the natural vibration period, earthquake shear force, lateral structure, interlayer displacement, internal force and lateral stiffness of frame structure. The results show that:(1) RCS frame structure of high reduction in beam under the condition of 30%, better than RC frame in the limit level capacity, is able to resist a stronger earthquake;(2) Compared to RC frame structure, RCS frame structure is prior in ductility and resistance to deformation, high safety performance, and particularly suitable for applications in high-rise building structures;(3) Ignoring the spatial composite effect of slab, seismic action and assumed beam shear and bending moment on framework was are small 23%, the structural design tend to guard;(4) Ignoring the spatial composite effect of slab, lateral displacement and inter-layer are little large, and lateral stiffness little small, the structural design will tend to uneconomical... |
