摘要
以沈阳东电医院住院部(南楼)爆破拆除工程为例,根据东电医院住院部复杂环境及其具体情况采用LS-DYNA有限元软件对建筑物爆破拆除三种设计方案进行模拟分析,并将方案比选,得出了采用半梯形切口、半秒延时雷管的最佳设计方案。按此方案进行了爆破拆除施工并将实际倒塌结果与模拟结果进行对比。结果表明,二者在爆堆的尺寸形状上的误差均在10%以内,形成时间的误差为4.4%,在工程允许范围内。
Taking Shenyang east power hospital department（south）of blasting demolition project as an example,the LSDYNA finite element software was used to simulate and analyze three kinds of design schemes of blasting demolition of the building according to the complex environment and specific situation.The schemes were compared and the optimum blasting demolition scheme by using half a trapezoid cuts and half a second delay detonator was obtained.According to the scheme,the demolition blasting construction was carried out and the actual collapsed results were compared with the simulation results.The results showed error in size and shape of blasting muckpile were within 10%,error in the formation of the time was 4.4%.They were all within the allowed range of the project.
出处
《工程爆破》
2016年第3期48-53,共6页
Engineering Blasting
关键词
框架结构
爆破拆除
数值模拟
方案比选
爆堆
Frame structure
Blasting demolition
Numerical simulation
Scheme comparison
Blaiting muckpile
