剪力墙结构原地坍塌爆破分析BLASTING COLLAPSE ANALYSIS OF SHEAR-WALL STRUCTURES
崔晓荣;沈兆武;周听清;傅建秋;
CUI Xiao-rong~(1,2),SHEN Zhao-wu~1,ZHOU Ting-qing~1,FU Jian-qiu~2(1.Department of Modern Mechanics,University of Science & Technology of China,Hefei 230027,China;2.Guangdong Hongda Blasting Engineering Co.,Ltd.,Guangzhou 510055,China)
摘要(Abstract):
以某17层剪力墙高层建筑的原地坍塌爆破拆除为例,分析了剪力墙结构爆破坍塌、冲击解体的受力机理。分析结果表明:剪力墙结构的爆破坍塌、冲击解体,需要削弱结构的整体性,并有一定的自重和落差高度;此外,宜采用从下至上的起爆顺序,以便充分利用冲击荷载作用使结构充分解体,起到降低爆堆高度的作用。
Taking the demolition of a 17-story tower-building as an example,the paper analyzed blasting collapse of shear-wall structure and mechanical mechanism in impacting disaggregation.The analysis showed that self-weight,fall-height and weakening of structure were the preconditions of blasting collapse,and furthermore,suggested that the blasting should be in the sequence of from bottom to ceiling for making good use of impact load,and hence,controlling the height of muck-pile.
关键词(KeyWords):
拆除爆破;剪力墙结构;原地坍塌;冲击荷载
Demolition blasting; Shear-wall structures;Collapse in situ;Impact load
基金项目(Foundation):
作者(Authors):
崔晓荣;沈兆武;周听清;傅建秋;
CUI Xiao-rong~(1,2),SHEN Zhao-wu~1,ZHOU Ting-qing~1,FU Jian-qiu~2(1.Department of Modern Mechanics,University of Science & Technology of China,Hefei 230027,China;2.Guangdong Hongda Blasting Engineering Co.,Ltd.,Guangzhou 510055,China)
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- 崔晓荣
- 沈兆武
- 周听清
- 傅建秋
CUI Xiao-rong~(1- 2)
- SHEN Zhao-wu~1
- ZHOU Ting-qing~1
- FU Jian-qiu~2(1.Department of Modern Mechanics
- University of Science & Technology of China
- Hefei 230027
- China
- 2.Guangdong Hongda Blasting Engineering Co.
- Ltd.
- Guangzhou 510055
- China)
- 崔晓荣
- 沈兆武
- 周听清
- 傅建秋
CUI Xiao-rong~(1- 2)
- SHEN Zhao-wu~1
- ZHOU Ting-qing~1
- FU Jian-qiu~2(1.Department of Modern Mechanics
- University of Science & Technology of China
- Hefei 230027
- China
- 2.Guangdong Hongda Blasting Engineering Co.
- Ltd.
- Guangzhou 510055
- China)