杨阳,杨仁树,李清,张迪,王茂源
YANG Yang,YANG Ren-shu,LI Qing,ZHANG Di,WANG Mao-yuan

• 1:中国矿业大学(北京)力学与建筑工程学院

摘要(Abstract)：

为了在复杂环境中确保拆除爆破的安全实施,丽江市古城区加固型抗震大楼采用三切口定向折叠倾倒的爆破方案,即在大楼的1~3层、7~9层、12~13层分别形成切口,通过半秒延时起爆,三个切口相继闭合,大楼折叠倾倒在空地上。在爆破拆除前利用有限元软件模拟了建筑物倒塌过程,通过数值计算对建筑物的倒塌范围进行了预测,并对倒塌过程中的前冲、后坐、底部膨胀等关键性数据给出了定量分析,结果表明预测数值与真实数据接近,工程及其数值模拟情况可为类似工程提供参考。
In order to ensure the safety of the demolition blasting of the rugged earthquake-resistant building in Lijiang under complicated environment,the scheme with three incisions dumping directional folding blasting was adopted.The incisions were formed respectively in the building of 1~3,7~9,12~13layers,and they were closed one by one through half-second delay detonation.The building folding dumped on the ground.The collapse process was predicted with numerical simulation before the implementation of blasting and the key data about the moving-up,backward collapse,swelling at the bottom and so on were analyzed.The predicted values approached to the real data.

关键词(KeyWords)： 高层建筑;抗震结构;爆破拆除;折叠倾倒;有限元分析;数值模拟
High-rise buildings;Aseismic structure;Blasting demolition;Fold dumping;Finite element analysis;Numerical simulation

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 杨阳,杨仁树,李清,张迪,王茂源
YANG Yang,YANG Ren-shu,LI Qing,ZHANG Di,WANG Mao-yuan

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