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Study on the Design Optimization of the Fabricated Structure of the Subway Stationg Constructed by Open-Cut Method and the Mechnaical Behaviour of Construction

Author: LiuJianHong
Tutor: LiZhiYe
School: Southwest Jiaotong University
Course: Bridge and Tunnel Engineering
Keywords: Fabricated subway station Design Optimization Construction program Three-dimensional numerical calculation
CLC: U231.4
Type: Master's thesis
Year: 2007
Downloads: 218
Quote: 0
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Abstract


How to solve engineering construction speed , quality, and efficiency issues always become the focus of attention . The industrialization of construction is one of the trends of contemporary architecture technology , many countries have prefabrication as an important symbol of the development of the technology , but the domestic underground assembly structure is still in its infancy . Joints ( seams ) structure assembly station structure technology , components division , the form of structural section optimize the overall the waterproof scheme , assembly lifting , supporting programs to identify and auxiliary measures design, construction sequence, structural internal force variation is a system engineering constraints between them , reciprocal conditions . The combined topic \analysis : analyze the structure of the current joint types and joint mechanics model . The proposed joint design program based on the two station structure , and assume that the two joint bending stiffness factor structure calculation , comparing the mechanical properties of the structure of two station program . Also from the conditions of on-site assembly , construction Ease of use functional as well as decorative effect and economy structure comparison arched structure for preliminary design . By gradually changing the stiffness of the upper member proposed three candidate arched program , numerical calculation of the three structures program , analyze the arrival of the expected program envisaged , so as to achieve the purpose of optimization of the shape of the arch program . Of the the finally selected arched program construction program , including the preparation of pre-construction , excavation , bracing pattern selection component loading, assembly sequence and auxiliary set design . On the basis of the construction program , establish the station three dimensional finite element model to simulate the construction process of the station structure . Get the longitudinal assembly construction process in the assembly structure internal force changes in the law , and to determine the scope of the construction , as well as identify the longitudinal assembly construction process continuous wall displacement variation . Prove the feasibility of the construction program .

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CLC: > Transportation > Rail transport > Special railway > Mass Transit Railway > Subway station
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