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Study on Failure Modes of RC Beam under Blast Load

Author: CaiYingYing
Tutor: HuangPingMing
School: Chang'an University
Course: Bridge and Tunnel Engineering
Keywords: Blast loading Reinforced concrete beams Finite Element Analysis Failure modes of Effects of the damage factors
CLC: U441.2
Type: Master's thesis
Year: 2007
Downloads: 114
Quote: 1
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Abstract


With the continuous development of the construction of roads and bridges , war and an accident caused by a bridge explosion is more and more serious . Bridge structure in the explosion shock loads antiknock ensure safety in production and prevent terrorism at home and abroad such as current heats up the development of the situation has become increasingly active. Reinforced concrete beam is one of the basic building blocks for bridge engineering has been widely used to study the plastic deformation response under blast loading and destruction emerging issues in the field of bridge engineering . This article studies the basic characteristics of the explosions , blasting shock wave law ; failure mechanism of reinforced concrete structures under blast loading , based on the basic theory of fluid mechanics to determine a reasonable calculation of the detonation wave parameters : with reinforced concrete structure theory of finite element analysis , ANSYS finite element calculation procedures , the establishment of a finite element model of reinforced concrete beams , the use of pulse loads simulated blast , the beam under blast loading plastic deformation and failure modes of a systematic analysis ; at the same time , by analyzing the basic parameters of the detonation velocity , the concrete strength , the main beam reinforcement ratio , summed up under blast loading , the beam failure modes of the main factors . The results of this study to predict the plastic deformation of the bridge structure , improve the structure of the anti - knock ability has important value in engineering applications .

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CLC: > Transportation > Road transport > Bridges and Culverts > Structural principles, structural mechanics > Bridge load
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