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The Research on Methods for Strengthening Reinforced Concrete Beams by Bolting and Affixing Steel Plates

Author: LvShuJuan
Tutor: SunZongGuang
School: Dalian Maritime University
Course: Bridge and Tunnel Engineering
Keywords: Reinforced concrete beams Reinforcement Anchor Plate Sticking Slip Effect Finite Element Simulation
CLC: U445.72
Type: Master's thesis
Year: 2010
Downloads: 95
Quote: 1
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Abstract


With the continuous development of China's national economy , the substantial increase in the amount of transportation , bridge load is increasing , the original bridge part of aging , damaged , can not meet the requirements of modern transportation , there is an urgent need to carry out technological innovation . Plan steps to strengthen investigation and study of the existing condition of the bridge , analysis breakage reasons , to take effective measures of the existing old bridge to Retrofitting, to meet the needs of road transport in the new era , the old bridge Retrofitting technology can bring enormous economic and social benefits . On the basis of relevant theories , analyzing and discussing the the anchor adhesive steel reinforcement of reinforced concrete beams , the method can effectively avoid bonding steel plate reinforced brittle failure prone steel and concrete peeling . The main contents are as follows : (1) from Anchor Plate Sticking with the collaborative works of the beam , the elastic under the conditions of the beam bottom Anchor layout theoretical slip effect . (2) Since the anchors play an important role in the performance of the reinforcing effect , the Anchor bearing capacity calculated and summarized . ( 3) using Ansys software simulation analysis on the Anchor Plate Sticking reinforced concrete beam load before and after the bearing capacity of the beam deflection changes as well as steel plate stress changes the flexural capacity of influencing factors may a the anchor Plate Sticking general theoretical parameters . ( 4 ) combined with reinforced concrete design theory and finite element simulation, proposed the formula of the the anchor stick steel reinforcement Law flexural capacity of the calculation formula to calculate the thickness of the steel plate .

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