基于ANSYS的框架结构楼房拆除爆破辅助设计
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摘要
框架结构拆除爆破可以利用经验公式确定立柱爆破高度,对逐段解体爆破方案则须通过力学计算确定疏松节点的位置和数目。本文利用有限元分析软件ANSYS对框架结构楼房进行拆除爆破辅助设计,采用Beam188和Shell63单元建立了拟拆除建筑物的三维框架结构有限元模型,用杀死单元方法处理爆破部位。通过对不同爆破缺口的结果进行分析比较,取得了准确可靠的设计。
The blasting height of vertical pillar with frame structure demolition may be designed by experimental formula,but mechanical computing is required to determine the position and numbers of the demolition nodes in time-delay blasting.ANSYS was applied to aided design of frame structure blasting demolition in this article,and 3D finite element model was built up by using element Beam 188 and Shell63 and with the method of killing elements to tackle the blasting section.Accurate and reliable design of demolition was achieved by comparing the results of different blasting gaps.
The blasting height of vertical pillar with frame structure demolition may be designed by experimental formula,but mechanical computing is required to determine the position and numbers of the demolition nodes in time-delay blasting.ANSYS was applied to aided design of frame structure blasting demolition in this article,and 3D finite element model was built up by using element Beam 188 and Shell63 and with the method of killing elements to tackle the blasting section.Accurate and reliable design of demolition was achieved by comparing the results of different blasting gaps.
引文
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[3]刘孜恂,薛兴伟,刘洪瑞.ANSYS结构分析中不同梁体建模对刚度的影响[J].建筑技术开发,2004,31(12):12-13.
[4]陈波,吕西林,李培振,等.ANSYS模拟结构-地基动力相互作用振动台试验的建模方式[J].地震工程与工程振动,2002,22(1):126-131.
[5]于亚伦.工程爆破理论与技术[M].北京:冶金工业出版社,2004.
[6]龙驭球,包世华.结构力学教程(上)[M].北京:高等教育出版社,2001.
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