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North Jiangqiao Cheng bridge and construction process force performance analysis

Author: ZhaoPinYi
Tutor: YeMeiXin
School: Central South University
Course: Civil Engineering
Keywords: Railway cable-stayed bridge Steel truss Cable force Performance analysis of the force
CLC: U448.27
Type: Master's thesis
Year: 2011
Downloads: 32
Quote: 0
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Abstract


New You -Canton Railway North jiangqiao design ( 57.5 109.25 230 109.25 57.5 ) m five-span twin towers and double cable planes two main trusses four - line railway steel truss cable-stayed bridge . Below the cross and close to the side spans of times the side span concrete bridge deck in four sections , the rest of the orthotropic steel panel . The inside of the bottom chord set side stringers , side stringers level K stays connected to the bottom chord deck load through the bridge deck , transverse ribs and side stringers pass to the crossbar and then passed to the lower chord node . The structure is applied for the first time in the domestic four-line railway bridge . North Jiangqiao force performance in the state and the construction of the bridge process . Completed the main work is as follows : 1 , the use of the space plate girder method to establish the full space finite element model of the bridge , integrated application impact matrix method and zero displacement method to determine the cable force under dead load , and bridges under dead load the bridge force performance . The results show that : the bridge linear and smooth, the force in good condition . 2, on the bridge in the performance of the force under the most unfavorable live load and main combinations . The results indicate that the bridge has a sufficient strength and rigidity to meet the requirements of driving safety . 3 , the number of cable-stayed tension as little as possible , in good condition of the bridge by the force of the construction process, the principle of using dress iterative method combined with the finite difference method to determine the the North the Jiangqiao construction process cable-stayed Zhang Rally . Research for the North the Jiangqiao the design and construction of this article to provide a basis for other similar bridges also have a certain reference value .

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CLC: > Transportation > Road transport > Bridges and Culverts > All kinds of bridges > Bridge: Structure > Cable-stayed bridge
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