| Concrete Filled Steel Tubular(CFST)column system has been applied in high-rise buildings increasingly in recent yeas because of its strong carrying capacity and aseismic performance. Shear wall structure with some Reinforced Concrete(RC) supporting frames is weak of earthquake-resistant due to its uneven stiffness distribution. Shear wall structure with some concrete filled steel tubular column supporting frames posses more stronger carrying capacity and aseismic performance due to its stronger stiffness. The research on CFST column system's aseismic performance is still scare. In this paper, I will find out the different aseismic performance between shear wall structure with some RC supporting frames and shear wall structure with some CFST column supporting frames. The main contributions In this paper are as follows:1. The mechanical characteristic of CFST is researched depending on some reference book. The mechanical characteristics include the action between steel pipe and concrete filling, the dynamic performance of CFST.2. The finite-element analysis method of CFST is illustrated refer to the finite-element analysis method of reinforced concrete.3. The methods of modal analysis and seismic response analysis are researched.4. By adopting the finite-element analysis program-ETABS, it is researched for the rule of dynamical response between shear wall structure with some Reinforced Concrete supporting frames and shear wall structure with some CFST column supporting frames. The particulars are as follows:(1) The modals of two different structures are analyzed, by which we can compare the self-vibration frequency and modal shape of two different structures.(2) By analyzing the earthquake response of two different structures that bear the same typical acceleration response spectrum, we can compare the different lateral displacement , shearing force and bending moment between the two different structures.(3) Time-history analysis will be done when two different structures bearing the same earthquake, from the analysis, we can find the different lateral shift among sometypical stories and different internal force among some columns supporting frame. |
