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Special-shaped Column Frame Construction Anti-seismic Analysis

Author: ZhangRuiMing
Tutor: GuoZuo
School: Xi'an University of Architecture and Technology
Course: Disaster Prevention and Reduction Engineering and Protective Engineering
Keywords: Specially Shaped Columns Seismic performance Response spectrum analysis Time history analysis
CLC: TU352.1
Type: Master's thesis
Year: 2009
Downloads: 65
Quote: 1
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Abstract


Reinforced concrete shaped column frame structure was gradually in recent years to promote a new type of structural system, shaped column member section is different from the rectangular columns , so the structure bearing capacity , and seismic complexity and specificity . Shaped column frame structure of interior space utilization, use of the room area , reduce structural weight and reduce the cost , so in recent years has been widely used. The focus of this paper is to study the seismic performance . With the promotion of the system of special-shaped columns in the earthquake zone , more concerned about domestic academic and engineering seismic shaped column . At home and abroad on the rectangular column frame seismic study more, and very few studies on seismic shaped column frame . On the outcome of the domestic research of others , the use of finite element analysis software SAP2000 analysis . This selection of a seven-story frame structure, corner posts using the \Tianjin wave and EI - Centro and Shanghai artificial wave under the action of using SAP2000 modal analysis, response spectrum analysis and time history analysis between each layer shear displacement , acceleration and vibration mode analysis . The main work of this paper are as follows: ( 1) First, the model of special-shaped columns modal analysis to determine the vibration period of the structure to determine the structural design is reasonable . Response spectrum analysis and time history analysis to determine the vibration characteristics of the structure and base shear displacement , displacement angle changes over time with the change of time and the interlayer . (2) In order to more clearly illustrate the seismic performance of special-shaped columns , the use of a rectangular column frame structure under the same conditions as a comparison . Modal cycle contrast , the story drift and drift angle compared to study the seismic performance of special-shaped columns . The results show that the structure under strong earthquake with a good plastic deformation . Analysis and comparison show that shaped column frame structure to maintain a good working performance normally earthquake . As long as you meet the regulatory requirements in the design process , special-shaped columns below 7 degrees to meet the requirements for seismic resistance .

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CLC: > Industrial Technology > Building Science > Building structure > Special Structure > Anti - shock structure,disaster prevention structures > Shock, isolation, and explosion-proof structure
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