State-of-the-art of research and analysis of structure and bridge under blast loads

Journal of Chongqing Jiaotong University(Natural Science) ›› 2005, Vol. 24 ›› Issue (3): 16-19.

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State-of-the-art of research and analysis of structure and bridge under blast loads

LIU Shah-hong¹ ， WEI Jian—dong² ， Qi Yong-jiu²

(1．PostDOCtOr Station ofTranspotadon andTrafic School，Southwest JiaotongUniversity，Chengdu 610031，China； 2．Resenarch Institute afBridge and Structure，Southwest Jiaotong University，Qler 610031，China

Received:2002-12-16 Revised:2004-11-05 Online:2005-06-15 Published:2015-05-18

桥梁结构爆炸分析特点综述

刘山洪 ¹ ，魏建东² ，钱永久²

1．西南交通大学交通运输工程博士后流动站，四川成都610331； 2．西南交通大学土木工程学院，四川成都61003

作者简介:刘山洪(1968一)，男，重庆市垫江人，博士后，主要研究方向为高性能预应力砼桥梁结构行为。

Abstract

Abstract: The character of blast loads and the pressure-time profile of a typical blast wave are presented. There are foundations of simulating responses of bridges under blast loads. The main failure forms of high-way bridges are local damaged. It should be noticed that limited areas of bridge may act with blast loads when explosive effects are simulated by calculation method. It can not be simply applying uniform loads on decks. The characters and rules of simulating bridges subjected to blast loading a

Key words: structural bridge, blast loads, calculating model, damage evaluation, structural design

摘要： 笔者在文中论述了爆炸荷载的特点和冲击波超压。时间曲线，这是模拟爆炸荷载对桥梁结构作用的基础。爆炸荷载作用下，公路梁桥以局部破坏形式为主。进行爆炸效应的数值模拟时应注意到爆炸荷载对梁桥的作用效应为有限的区域，而不能简单地用均布荷载施加于桥面上。并介绍了爆炸模拟的原则和特点。

关键词: 桥梁结构, 爆炸荷载, 计算模型, 损伤评估, 结构设计

CLC Number:

TU317．1

LIU Shah-hong ， WEI Jian—dong ， Qi Yong-jiu. State-of-the-art of research and analysis of structure and bridge under blast loads[J]. Journal of Chongqing Jiaotong University(Natural Science), 2005, 24(3): 16-19.

刘山洪，魏建东，钱永久. 桥梁结构爆炸分析特点综述[J]. 重庆交通大学学报（自然科学版）, 2005, 24(3): 16-19.

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State-of-the-art of research and analysis of structure and bridge under blast loads

桥梁结构爆炸分析特点综述

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