The Research On Structural Form Selection And Seismic Performance Of Small High-rise Residences

In recent years, a large number of small high-rise residential house, which have the structures with specially shaped column or with short-leg shear wall have been emerged. Howerver, there is a few of research work for the structures with specially shaped column and with short-leg shear wall. In order to look for the reasonable structural forms of small high-rise residential houses, the discussion of aseismetic performance of the structures is necessary.Based on the summarized research results, in this paper, and the study include the following research work has been done in this thesis:First, the features of frame structures with rectangular columns, frame structures with specially shaped columns and structures with short-leg shear walls have been analysed.Their structural arrangement, calculation and construction have been discussed.Second, chose suitable structure contrast model for the short-leg shear wall structure system and special-shaped column structure system and rectangle column frame structure system, that's to say, the structure plane likeness and the structure is the same as 12 floor, carry on model analysis and elasto-plastic time-history analysis to the structure model with SAP2000 respectively, then got their natural periods and horizontal displacement, earthquake reaction, carried on earthquake response spectrum analysis, compared their horizontal displacement and interstorey drift, and select the reasonable structure system for the small high-rise residence, and give some design suggestions to provide an actual engineering design reference.Third, elaborated the basic principle, basic suppose, general step of Pushover analyzes method, and apply to three kinds of structure systems at the same small high-rise residence, build up analytical model respectively, adopt SAP2000 structure analysis software, choose suitable earthquake wave, according to the current structure analysis and calculation, designed norm to carry on Pushover, and then got their plastic-hinge appear and response spectrum curve. Carried on an evaluation according analysis results, thus to valuate the whole aseismatic performance of the structure.Fourth, the influence to the aseismatic ability of the structure is analyzed when the disposal of short-leg shear wall and special-shaped column had changed. The structural forms have been compared in a small high-rise residence, which was designed by author.