[1]李清,杨阳,杨仁树,等.基于MAT96本构模型的钢筋混凝土结构爆破拆除数值模拟[J].爆破器材,2015,44(01):41-45.[doi:10.3969/j.issn.1001-8352.2015.01.010]
　LI Qing,YANG Yang,YANG Renshu,et al.The Numerical Simulation of Reinforced Concrete Structure Blasting Based on MAT96 Constitutive Model[J].EXPLOSIVE MATERIALS,2015,44(01):41-45.[doi:10.3969/j.issn.1001-8352.2015.01.010]
点击复制

基于MAT96本构模型的钢筋混凝土结构爆破拆除数值模拟()
分享到：

《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
44
期数:
2015年01
页码:
41-45
栏目:
安全与测试
出版日期:
2015-02-20

文章信息/Info

Title:
The Numerical Simulation of Reinforced Concrete Structure Blasting Based on MAT96 Constitutive Model
文章编号:
4806
作者:
李清; 杨阳; 杨仁树; 张迪; 王茂源
中国矿业大学（北京）力学与建筑工程学院（北京，100083）
Author(s):
LI Qing;  YANG Yang;  YANG Renshu;  ZHANG Di;  WANG Maoyuan
School of Mechanics and Civil Engineering, China University of Mining and Technology(Beijing, 100083)
关键词:
爆炸力学; 爆破拆除; 数值模拟; 钢筋混凝土结构; MAT96
Keywords:
mechanics of explosion;  molitionblasting;  numerical simulation;  reinforced concrete;  MAT96
分类号:
TU746.5；TD235.37
DOI:
10.3969/j.issn.1001-8352.2015.01.010
文献标志码:
A
摘要:
采用有限元分析软件ANSYS/LS-DYNA，分析了基于MAT96本构模型的钢筋混凝土结构爆破拆除过程。混凝土实体单元的单轴压缩模拟试验表明，材料的峰值抗拉强度为2.4 MPa，抗压强度为30.0 MPa，无围压压缩强度约为拉伸强度的12倍；在三轴压缩模拟试验中，随着围压升高，混凝土的抗压强度显著增加、变形显著增大，其模拟结果与真实混凝土试验相近。基于MAT96本构关系的混凝土试件在拉伸模拟试验中呈现的是混凝土的劈裂破坏，而压缩呈现的是对角线破坏，类似于混凝土材料实验室破坏模式，验证了MAT96材料本构关系与混凝土吻合较好。结合整体式建模模拟钢筋混凝土结构爆破拆除倒塌过程，基于计算结果，分析了建筑物在倒塌过程中的前冲、后坐、鼓胀等问题，并对整个倒塌过程做出了定量描述。通过与工程实践相对比，得知模拟结果较符合实际情况，对钢筋混凝土结构建筑物的拆除爆破工程具有指导意义。
Abstract:
The process of blasting demolition of reinforced concrete structures based on MAT96 constitutive model was analyzed by finite element analysis software ANSYS/LSDYNA. The simulation of uniaxial compression test of concrete solid elements show that the peak tensile strength is 2.4 MPa, the compressive strength is 30.0 MPa, and the unconfined compression strength is about 12 times as much as the tensile strength. In the triaxial compression simulation experiments, along with the confining pressure increases, the compressive strength and deformation increase significantly, similar to the real concrete simulation experiment results. With the MAT96 constitutive relation, concrete specimen in tensile simulation experiments presented the cleavage cracking of concrete, the diagonal is presented in the compression damage, similar to the failure mode of concrete material in the lab, which verifies that the MAT96 materials are in good agreement with the concrete constitutive relations. It simulated the collapse of reinforced concrete structures blasting combined integral model based on the calculation results,analyzed the pediment, recoil, bloating and other issues of building collapse, and made a quantitative description of the entire collapse process. Compared with engineering practice, the simulation result is consistent with the actual situation, which is meaningful to reinforced concrete structure building demolition.

参考文献/References:

［1］言志信, 刘培林, 叶振辉. 框架剪力墙结构的定向爆破倒塌过程［J］. 爆炸与冲击, 2011, 31(6): 647-652. 
Yan Zhixin, Liu Peilin, Ye Zhenhui. Directional blasting collapse process of frameshear wall structure［J］. Explosion and Shock Waves, 2011,31(6):647-652.
［2］李承, 顾祥林, 陈建兵. 钢筋混凝土框架结构拆除爆破计算机仿真及存在的问题［J］. 工程力学,1999（增刊）: 361-366.
［3］冯叔瑜,吕毅,杨杰昌，等. 城市控制爆破［M］.2版. 北京:中国铁道出版社，1985.
［4］贾永胜, 谢先启, 李欣宇, 等. 建(构)筑物控制爆破拆除的仿真模拟［J］. 岩土力学，2008,29(1):285-288.
Jia Yongsheng, Xie Xianqi, Li Xinyu, et al. Numerical simulation for demolition of structures［J］. Rock and Soil Mechanics，2008, 29(1):285-288.
［5］陈宝心, 邓籽, 钱虎. ANSYS模拟框架结构楼房逐段解体爆破拆除［J］. 爆破， 2004,21(3):5-7，20. Chen Baoxin, Deng Zi, Qian Hu. ANSYS simulation of the blasting process by gradual disintegration［J］. Blasting, 2004,21(3):5-7,20.
［6］杨国梁, 杨军, 姜琳琳. 框-筒结构建筑物的折叠爆破拆除［J］. 爆炸与冲击, 2009,29(4):380-384.
Yang Guoliang, Yang Jun, Jiang Linlin. Numerical simulations on fold blasting demolition of frametube structures［J］. Explosion and Shock Waves, 2009,29(4): 380-384.
［7］刘伟. 建筑物爆破拆除有限元分析与仿真［D］. 武汉:武汉理工大学, 2006.
 Liu Wei. Finite element analysis and simulation of buildings blasting demolition［D］. Wuhan: Wuhan Polytechnic University, 2006.
［8］江见鲸. 钢筋混凝土结构非线性有限元分析［M］. 西安: 陕西科学技术出版社, 1994.
 Jiang Jianjing. Collected in works contemporary civil and architeclural science and technology［M］. Xian: Shaanxi Science and Technology Press, 1994.
［9］李胜林, 王宇涛, 黄明升, 等. 单榀钢混框架结构内爆法拆除模拟［J］. 北京理工大学学报,2012,32(4): 354-357,385.
 Li Shenglin, Wang Yutao, Huang Mingsheng, et al. Numerical simulation of single concrete framework implosion demolition［J］. Transactions of Beijing Institute of Technology,2012,32(4): 354-357,385.
［10］余德运, 杨军, 陈大勇,等.基于分离式共结点模型的钢筋混凝土结构爆破拆除数值模拟［J］. 爆炸与冲击, 2011,31(4):349-354.
 Yu Deyun, Yang Jun, Chen Dayong, et al. Numerical simulation of reinforced concrete structure based on separate element and common node model［J］. Explosion and Shock Waves, 2011, 31(4): 349-354.

相似文献/References:

[1]赵坤,蒋昭镳.爆破拆除不同结构钢筋混凝土基础[J].爆破器材,2010,39(02):38.
　ZHAO Kun,JIANG Zhaobiao.Demolition Blasting of Different Structure Reinforced Concrete Foundation[J].EXPLOSIVE MATERIALS,2010,39(01):38.
[2]夏卫国,武双章,史常猛.华能莱芜发电厂5座冷却塔爆破拆除[J].爆破器材,2011,40(01):38.
　XIA Weiguo WU ShuangzhangSHI Changmeng.Blasting Demolishing of the Five Hyperbolic Cooling Towers for Huaneng Power Plant in Laiwu[J].EXPLOSIVE MATERIALS,2011,40(01):38.
[3]夏卫国,史长猛,武双章,等.谏壁电厂三座100m高钢筋混凝土烟囱爆破拆除[J].爆破器材,2011,40(02):36.
　XIA Weiguo,SHI Changmeng,WU Shuangzhang,et al.Demolition of the Three 100 mhigh Reinforced Concrete Chimneys of Jianbi Power Plant by Directional Blasting[J].EXPLOSIVE MATERIALS,2011,40(01):36.
[4]安二峰,杨军,陈鹏万.高锰钢整铸辙叉爆炸硬化实践与研究[J].爆破器材,2009,38(02):25.
　AN Erfeng,YANG Jun,CHEN Pengwan.Study on Explosive Hardening of Hadfield Steel Rail Frogs[J].EXPLOSIVE MATERIALS,2009,38(01):25.
[5]武双章,夏卫国,王德荣,等.2座150 m高钢筋混凝土烟囱爆破拆除应变分析[J].爆破器材,2011,40(06):37.
　WU Shuangzhang,XIA Weiguo,WANG Derong,et al.Strain Analysis in Blasting Demolition of Two 150 mhigh Reinforced Concrete Chimneys[J].EXPLOSIVE MATERIALS,2011,40(01):37.
[6]徐森①,张兴明①,潘峰①,等.工业炸药能量测试方法的分析[J].爆破器材,2013,42(01):18.[doi:10.3969/j.issn.1001-8352.2013.01.005]
　XU Sen,ZHANG Xingming,PAN Feng,et al.Analysis on the Energy Testing Methods of Industrial Explosives[J].EXPLOSIVE MATERIALS,2013,42(01):18.[doi:10.3969/j.issn.1001-8352.2013.01.005]
[7]臧立伟,尹建平,王志军.轴向预制破片战斗部的设计研究[J].爆破器材,2013,42(02):5.[doi:10.3969/j.issn.1001-8352.2013.02.002]
　ZANG liwei,YIN Jianping,WANG Zhijun.Optimizing Design of Axial Prefabricated Fragments[J].EXPLOSIVE MATERIALS,2013,42(01):5.[doi:10.3969/j.issn.1001-8352.2013.02.002]
[8]姚志华,李德战,付庆海,等.偏心亚半球成型装药结构的数值模拟[J].爆破器材,2013,42(02):17.[doi:10.3969/j.issn.1001-8352.2013.02.005]
　YAO Zhihua,LI Dezhan,FU Qinghai,et al.Numerical Simulation of Shape Charge with an Eccentric Subhemisphere Liner[J].EXPLOSIVE MATERIALS,2013,42(01):17.[doi:10.3969/j.issn.1001-8352.2013.02.005]
[9]闫鸿浩,刘智远,李晓杰.烟囱爆破拆除及其振动测试分析[J].爆破器材,2013,42(03):21.[doi:10.3969/j.issn.1001-8352.2013.03.005]
　YAN Honghao,LIU Zhiyuan,LI Xiaojie.Chimney Blasting Demolition and Analysis of Vibration Measurement[J].EXPLOSIVE MATERIALS,2013,42(01):21.[doi:10.3969/j.issn.1001-8352.2013.03.005]
[10]杨亚东,李向东,王晓鸣.爆炸冲击波空中传播特征参量的优化拟合[J].爆破器材,2014,43(01):13.[doi:10.3969/j.issn.1001-8352.2014.01.003]
　YANG Yadong,LI Xiangdong,WANG Xiaoming.Optimum Fitting for Characteristic Parameters of Blast Shockwaves Traveling in Air[J].EXPLOSIVE MATERIALS,2014,43(01):13.[doi:10.3969/j.issn.1001-8352.2014.01.003]

备注/Memo

备注/Memo:
收稿日期：2014-04-04
基金项目：国家自然科学基金资助项目（51374212）
作者简介：李清（1969~），男，教授，博导，主要从事材料动力学和工程爆破技术的研究。E-mail：liq@cumtb.edu.cn
更新日期/Last Update: 2015-03-01