«上一篇/Previous Article|本期目录/Table of Contents|下一篇/Next Article»

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

33卷

期数:

2016年02期

页码:

41-47

栏目:

出版日期:

2016-03-30

文章信息/Info

Title:

Study on Dynamic Response and Failure Modes of Reinforced Concrete Frame Under Vehicle Impact

作者:

田 力，胡国辉

天津大学建筑工程学院

Author(s):

TIAN Li, HU Guo-hui

School of Civil Engineering, Tianjin University

关键词:

汽车撞击; 钢筋混凝土框架; 损伤机理; 破坏模式; 线性关系

Keywords:

vehicle impact;  reinforced concrete frame;  damage mechanism;  failure mode;  linear relationship

分类号:

-

DOI:

-

文献标志码:

A

摘要:

为了研究汽车撞击下钢筋混凝土整体框架结构的动态响应、损伤机理及破坏模式，运用显式动力分析软件ANSYS/LS-DYNA建立6层钢筋混凝土框架结构模型，并对不同车速撞击下汽车与钢筋混凝土框架角柱和边中柱的破坏过程进行仿真模拟。结果表明：汽车撞击角柱和边中柱的损伤破坏过程相同；最大碰撞力与撞击速度呈线性关系；中国规范对汽车等效碰撞力的取值偏于不安全；在汽车的撞击作用下，被撞柱柱底发生弯剪破坏，柱顶发生剪切破坏，结构的动态反应具有局部性，只与被撞柱及周围相邻的构件有关。

Abstract:

In order to study the dynamic response, damage mechanism and failure mode of reinforced concrete (RC) frame, explicit dynamic analysis software ANSYS/LS-DYNA was used to build a model structure of six-story reinforced concrete frame, then the damage processes of corner column and side column of the reinforced concrete frame under vehicle impact with different speeds were simulated. The results show that the failure process of corner column is same with the failure process of side column under vehicle impact. The relationship of maximum impact force and impact velocity is linear. Equivalent value of the car collision force in Chinese specification is unsafe. Under vehicle impact,the bending shear failure occurs at the bottom of the column, and the shear failure occurs at the top of the column;the dynamic response of the structure has limitations, and it is only related with the collision column and the surrounding adjacent members.

参考文献/References:

相似文献/References:

[1]吴方伯,李大禹,欧阳靖,等.不同连接方式下新型砌体填充墙框架结构的抗震性能[J].建筑科学与工程学报,2016,33(03):28.
　WU Fang-bo,LI Da-yu,OUYANG Jing,et al.Seismic Performance of New Masonry Infilled RC Frame with Different Types of Connections[J].Journal of Architecture and Civil Engineering,2016,33(02):28.
[2]周 媛,李付勇,王社良.钢筋混凝土框架抗连续倒塌的仿真分析[J].建筑科学与工程学报,2016,33(05):64.
　ZHOU Yuan,LI Fu-yong,WANG She-liang.Simulation Analysis of Progressive Collapse of Reinforced Concrete Frames[J].Journal of Architecture and Civil Engineering,2016,33(02):64.
[3]田 力,胡 杨.汽车撞击和爆炸共同作用下钢筋混凝土柱的动力响应与破坏模式[J].建筑科学与工程学报,2017,34(01):41.
　TIAN Li,HU Yang.Dynamic Response and Failure Modes of Reinforced Concrete Columns Under Vehicle Impact and Blast[J].Journal of Architecture and Civil Engineering,2017,34(02):41.
[4]夏倩.钢筋混凝土框架强柱弱梁设计的概率分析[J].建筑科学与工程学报,2011,28(02):114.
　XIA Qian.Probability Analysis of Strong Column-weak Beam Design of Reinforced Concrete Frames[J].Journal of Architecture and Civil Engineering,2011,28(02):114.

备注/Memo

备注/Memo:

常用功能

更新日期/Last Update: 2016-03-30