钢筋混凝土梁冲击试验数值模拟研究

姜华 贺拴海王君杰

振动与冲击 ›› 2012, Vol. 31 ›› Issue (15) : 140-145.

PDF(2107 KB)
PDF(2107 KB)
振动与冲击 ›› 2012, Vol. 31 ›› Issue (15) : 140-145.
论文

钢筋混凝土梁冲击试验数值模拟研究

  • 姜华1 贺拴海1王君杰2

作者信息 +

Investigation on numerical simulation the impact test of reinforced concrete beams

  • JIANG Hua1, and HE Shuan-hai1 WANG Jun-jie2
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摘要

摘要: 采用弹塑性损伤帽盖模型对筋混凝土梁冲击试验进行了数值模拟,数值模拟得到的碰撞力、梁体跨中挠度以及梁体破坏状况与实验情况吻合较好。在此基础上讨论了混凝土材料应变软化段、描述塑性体积的帽盖面、强度准则子午线形状、偏平面形状以及钢筋混凝土结构建模方式对冲击数值模拟的影响。

Abstract

Abstract: The elastoplastic damage cap model is applied to simulate the impact test of reinforced concrete beam, where the collision force, the midspan deflection and the damage state of the beam obtained in the numerical way agree well with the test result. Then the influence of the strain softening section, the cap surface to describe the plastic volume, the shape of its meridian and deviatoric for strength criteria of concrete as well as two methods to mesh the concrete and steel elements to the result of numerical simulation the impact test is discussed.

关键词

钢筋混凝土梁 / 冲击试验 / 数值模拟 / 弹塑性损伤帽盖模型

Key words

Reinforced concrete beam / impact test / numerical simulation / elastoplastic damage cap model

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导出引用
姜华 贺拴海王君杰. 钢筋混凝土梁冲击试验数值模拟研究[J]. 振动与冲击, 2012, 31(15): 140-145
JIANG Hua;and HE Shuan-hai WANG Jun-jie . Investigation on numerical simulation the impact test of reinforced concrete beams [J]. Journal of Vibration and Shock, 2012, 31(15): 140-145

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