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The Seismic Analysis in the Frame-Core Tube Structure with the Stiffness-Strengthened Storey

Author: ZhangXiaoFeng
Tutor: LiLi
School: Southwest Jiaotong University
Course: Structural Engineering
Keywords: Rigid reinforcing layer Rare earthquake Framework - core barrel structure Dynamic analysis
CLC: TU398.9
Type: Master's thesis
Year: 2007
Downloads: 182
Quote: 3
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Abstract


Under the the the role of of in the horizontal force , the settings the the the rigid to strengthen the layer to is a kind of reduce the the the of the effective method of of the structure horizontal displacement , the the the the research and engineering of practice of of This is something that many predecessors have given the the answer to of the certainly . In at the same time , due to to to strengthen the settings of the layer will be caused by the structure stiffness and the internal force mutation , and easy to form the the the weak layer . Under the the the role of of in the wind load , the band to strengthen that the smaller the of the internal force mutation of caused by by the the the the high-rise building of structure of the layer , general does not produce the the destruction of of the structure ; in the the the the seismic under the action of , to strengthen the the the of the structure stiffness caused by by the of the to set the of the layer , internal force the mutation be is more serious , this is the the the the problem of that we must to attach importance to , to the lack of research in particular, for the the the the under the of the structure reaction in in the Seldomly Occurred earthquake . The of this article adopt the large-scale the general-purpose limited yuan software SAP2000, on the the program of the framework of - the the level of 6 kinds of of of the the core tube structure of to strengthen the layer settings , the establishment of the model of Finite Element Analysis . And then adopt to vibration -type the response spectrum method to carried out of different structure the the the level of earthquake Dynamic Analysis of , compare and summed up the the the In different under the program of , the structure of the cycle , displacement and seismic response ; for the the to provide a certain amount of the reference to the proposed to the the seismic design of of the such the structure of . Cheng when the the The the software EPDA of the This article also take advantage of the Finite Element to strengthen the framework of of the layer , on the the belt on horizontal - core tube structure carried out impetus for analysis, the has been the cycle of the structure in the the under the the earthquake of Seldomly Occurred , plastic hinge of the the structure under the the the displacement and earthquake response as as well as as Seldomly Occurred earthquake the role of the site of that appears , get Conclusion : in the the the under the the earthquake the role of Seldomly Occurred , settings the the the level of to to strengthen layer to for the lateral displacement of the the structure the level of has little effect on , However which has elicited considerable a internal force of the huge mutation of , reduce the the the level of to outriggers the member stiffness is still is to reduce the Seldomly Occurred the earthquake effective way to of for mutations in internal forces of under the the the role of .

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