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Finite Element Analysis and Construction Monitoring for Tongnan Bridge

Author: GaoXing
Tutor: JiangXinLiang
School: Tianjin University
Course: Structural Engineering
Keywords: Steel truss bridge Cycle Simulation Buckling Analysis Nodal analysis Material nonlinearity Stress Monitoring
CLC: U446
Type: Master's thesis
Year: 2007
Downloads: 111
Quote: 0
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Abstract


Self - anchored truss hanging the combination steel bridge is a relatively new form of structure , in order to make a correct assessment of force performance in a variety of conditions , the ultimate bearing capacity of this structure , the bridge multifaceted computing research . First summarize the steel bridge traditional calculation method , and then propose the technical ideas to build a complete simulation analysis in accordance with the structure of the full-bridge a unified structure analysis system , and construct the finite element model of the combination of the full bridge bearing member in the system , thus overcoming the traditional simplify calculation due to the hinged or just assumptions , boundary conditions and assumptions and ignored truss rod horizontal size effect hypothesis brought insufficient . Plates and shells , rod unit unit to establish a fine combination of full-bridge finite element analysis model , calculation and simulation based on a large-scale full-bridge conditions combination . Then using the finite element model of the space pole the upper truss rod eigenvalue buckling analysis and nonlinear buckling analysis , obtained the rod buckling load . Detailed finite element model for a node to establish , through analysis of the key points of the ultimate load of each node under the plastic zone stress -strain curve , and node geometry deformation , come to the ultimate bearing capacity of the nodes . The results show that it can meet the engineering capacity needs . The papers detailed calculations and comparative analysis will contribute to a better understanding of the type of steel bridges force performance . Stress monitoring test is the last of the bridge system conversion process , the use of advanced testing equipment, and real-time monitoring of the various components of the stress changes in the entire system conversion process , and then test get a large amount of data collected, prepared , and make a detailed analysis . The test results of a similar bridge construction projects .

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CLC: > Transportation > Road transport > Bridges and Culverts > Bridge test observations with the test
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