Study On Design Method Of Complicated High-rise Building With Beam-transfer Storey

The high-rise building with transfer storey is a kind of unusual and complicated structure form, its salient characteristic is that distribution of the lateral components along vertical direction is not continuous, and the vertical stiffness is not uniform. It is easy to form a weak layer in the structure under the action of a strong earthquake, it is a kind of structure form which is unfavorable to the seism resistance and should be used carefully in the high earthquake intensity area, so attention should be paid to process, when taking the rational measures to ensure the earthquake resistant security of the structure design. This thesis illuminates the core of the Performance -Based Design(PBD), i.e. the failure mode of the structure under the action of earthquake is predictable and the earthquake disaster is controllable. The PBD is an enormous progress in the earthquake resistance design, in which the design is conducted actively rather than passively,the key of the PBD, is the control of the nonlinear deformation of structure in condition of seldom occurred seismic. This thesis applies the ideas into a factual design, and researches the design method for complicated high-rise structures with beam-transfer storey. This thesis introduces the type of structure with transfer-storey, and it's main characteristic, and the key point of the design of shear-wall structure with beam-transfer storey systematically, emphasizes that more attention should be paid to the conceptual design of the earthquake resistant design of the structure, analyzes the influence of high-transfer floor on the structure performance. Two kinds of different mechanical models are adopted to conduct computational analysis and comparison, the elastic internal force and deformation of structure subjected to frequently occurred seismic are checked with elastic time history method. The concept of Performance-Based Design is introduced, and the Performance-Based Design of the transfer storey is done. Finally this thesis illuminates the process and influence factor of elastic-plastic analysis of structure, and illuminates the reasonable selection of the mechanical models and the seismic wave for structural analysis. The deformation performance of stucture under major earthquake is described directly and the results are analyzed, which prove that designer's conceptual design and performance-based designed is successful. This thesis presents some design ideas of beam-transfer complicated high-rise building, put the emphases on conceptual design and Performance-Based Design, provide a method for the similar projects.