Numerical Analysis for Blasting Demolition of the Smaller Height-Width Ratio Framed Structure

摘要：

　　The blasting cut parameters has important influence on building blasting demotion.Combined with project,the numerical model of a small height-width ration and 12 layers framed structure demolition due to blasting was built by ANSYS/LS-DYNA.The structure was built with BEAM and SHELL element,the reinforced concrete was simplified as homogeneous isotropic and modeled with piecewise linear plasticity material.The ground model was built with solid element and rigid material.The demolition effect of different blasting cuts were simulated and analyzed,the simulation and the real results showed that: the height of blasting cut is only necessary but not sufficient condition for building collapse,the reasonable pre-demolition and time-delay should be combined with the blasting height to achieve ideal blasting effects.

关键词： framed structure blasting demolition cut parameters numerical analysis

作者: LIU Wei YAN Shilong HU Kunlun LI Hongwei

作者单位: School of Chemistry Engineering,Anhui University of Science and Technology,Huainan,Anhui,China

会议类型: 国际会议

会议名称: The 4th Asian-Pacific Symposium on Blasting Techniques(第四届亚洲太平洋地区爆破技术研讨会)

会议地点: 深圳

会议语种:英文

页码: 48-51

在线出版日期: 2014-11-01（万方平台首次上网日期，不代表论文的发表时间）