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The Analysis of the Disease of the Existing Reinforced Concrete Arch Bridge and Study on Its Strengthening

Author: WangZhenLing
Tutor: QiangShiZhong
School: Southwest Jiaotong University
Course: Bridge and Tunnel Engineering
Keywords: Arch bridge Reinforcement Space Finite Element Analysis Internal Force Analysis
CLC: U445.7
Type: Master's thesis
Year: 2002
Downloads: 267
Quote: 12
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Abstract


With the development of China's national economy , highway traffic volume rose sharply , coupled with the design, construction , and aging and other reasons , making the the bridge operations diseases emerging , seriously affect the normal use of the bridge , and in urgent need of repair and reinforcement . This situation, the Southern Jialing River Bridge repair and reinforcement engineering , made ??the following research work can provide a reference for future similar work . (1 ) Due to the traditional algorithm Damaged Arch there is obviously insufficient , the situation in the real bridge , the use of large-scale finite element software - ALGOR12 were established finite element analysis model of the full-bridge configuration space reinforcement and reinforced . (2 ) In order to accurately and quickly determine the most unfavorable load case , the use of the combination of the new principle of virtual displacements and boundary element method to draw the main inspecting calculation sectional internal forces affect surface . ( 3 ) application space finite element model , combined with the internal force influence surface , internal forces and stability calculation of reinforcement and analyze the major cause of disease . (4 ) According to the analysis of the results and use requirements , combined with the actual situation on site on the southern bridge reinforcement , and introduced new materials, new technology applied to the bridge . ( 5 ) use of the space model , reinforced reinforced inspecting calculation of internal forces and stability , and to explore the feasibility of reinforcement program . On the basis of the above work , the paper finally arrive at conclusions with reference value . Finite element analysis method can effectively simulate the actual situation of the old bridge , can be widely used for Damaged Arch Internal force calculation ; internal force analysis of the results can provide a basis for determining a reasonable reinforcement program , a combination of both of the other structures and think : reinforcement has certain reference value ; bar technique can be used in the maintenance of the bridge structure reinforcement project .

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CLC: > Transportation > Road transport > Bridges and Culverts > Bridge Construction > Bridge maintenance, repair and remediation
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