钢筋混凝土梁桥船舶撞击连续倒塌数值模拟

姜华;王君杰

振动与冲击 ›› 2012, Vol. 31 ›› Issue (10) : 68-73.

PDF(1446 KB)
PDF(1446 KB)
振动与冲击 ›› 2012, Vol. 31 ›› Issue (10) : 68-73.
论文

钢筋混凝土梁桥船舶撞击连续倒塌数值模拟

  • 姜华1, 王君杰2
作者信息 +

Numerical simulation the continuous collapse of reinforced concrete girder bridge subjected to vessel collision

  • JIANG Hua1, WANG Jun-jie2
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文章历史 +

摘要

详细介绍了钢筋混凝土桥梁船撞倒塌模拟涉及的材料模型和单元失效指标等问题,建立某连续梁上部、下部结构、支座和船舶结构精细有限元模型,将弹塑性损伤帽盖模型用于混凝土,弹塑性随动强化模型用于钢筋,对船舶撞击钢筋混凝土连续梁引起的结构连续倒塌过程进行了数值模拟,揭示了连续梁桥结构的船撞倒塌机理。

Abstract

The detail introduction about the material model and failure index of the element in the numerical simulation the collapse of vessel collision the reinforced concrete bridge is presented first, then the delicate finite element model for bridge superstructure, substructure and support saddle is set up, where the elastoplastic damage cap model is used for concrete and the elastoplastic kinematic hardening is used for steel bar. The numerical simulation of the collapse process of bridge structure caused by vessel collision is carried out and the collapse mechanism of continuous girder bridge is pointed out.

关键词

弹塑性损伤帽盖模型 / 船舶撞击 / 钢筋混凝土连续梁 / 结构倒塌 / 数值模拟

Key words

elastoplastic damage cap model / vessel collision / reinforced concrete continuous girder bridge / structure collapse / numerical simulation

引用本文

导出引用
姜华;王君杰. 钢筋混凝土梁桥船舶撞击连续倒塌数值模拟[J]. 振动与冲击, 2012, 31(10): 68-73
JIANG Hua;WANG Jun-jie . Numerical simulation the continuous collapse of reinforced concrete girder bridge subjected to vessel collision [J]. Journal of Vibration and Shock, 2012, 31(10): 68-73

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