[1]刘琎,杨永强,姚颖康,等.高层框剪结构爆破拆除振动监测及分析[J].地震工程与工程振动,2018,38(05):198-205.[doi:10.13197/j.eeev.2018.05.198.liuj.023]
　LIU Jin,YANG Yongqiang,YAO Yingkang,et al.Measurement and analysis of vibration caused by blasting demolition of high-rise RC building[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2018,38(05):198-205.[doi:10.13197/j.eeev.2018.05.198.liuj.023]
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高层框剪结构爆破拆除振动监测及分析
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《地震工程与工程振动》[ISSN:/CN:]

卷:
38
期数:
2018年05
页码:
198-205
栏目:
论文
出版日期:
2018-10-31

文章信息/Info

Title:
Measurement and analysis of vibration caused by blasting demolition of high-rise RC building
作者:
刘琎1;  杨永强1;  姚颖康2; 3;  胡进军1
1. 中国地震局 工程力学研究所 中国地震局地震工程与工程振动重点实验室, 黑龙江 哈尔滨 150080;
2. 河海大学 土木与交通学院, 江苏 南京 210098;
3. 武汉爆破有限公司, 湖北 武汉 430023
Author(s):
LIU Jin1;  YANG Yongqiang1;  YAO Yingkang2; 3;  HU Jinjun1
1. Key Laboratory of Earthquake Engineering and Engineering Vibration Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China;
2. College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China;
3. Wuhan Blasting Engineering Company, Wuhan 430023, China
关键词:
高层框剪结构; 爆破拆除; 塌落振动; 振动速度; 反应谱
Keywords:
high-rise RC buildings; blasting demolition; collapse vibration; vibration velocity; response spectrum
分类号:
O329
DOI:
10.13197/j.eeev.2018.05.198.liuj.023
摘要:
为分析高层建（构）筑物爆破拆除时爆破振动和塌落振动的特征及对周边建筑物的影响大小，对某高层框剪结构爆破拆除中的地面振动进行了实际的测量，并对监测点实测数据的爆破与塌落振动速度、卓越频率、持时及反应谱特性进行分析。分析表明：高层建筑物爆破拆除中塌落振动比爆破振动影响更大，频率更低，更容易引起建（构）筑物共振；塌落振动速度的3个方向分量中，竖向分量相较其它两个水平分量更大、衰减更快，爆破振动也存在同样的规律；常用的塌落振动估算公式无法对定向倒塌情况时不同方向上的差异进行合理推测；将各测点的反应谱与设计谱进行了比较，从建筑抗震设计角度说明本次爆破拆除的振动对周边建筑物的影响得到了有效的控制。
Abstract:
In order to analyze the characteristics of blasting vibration and collapse vibration caused by blasting demolition of high-rise buildings and the impact on the surrounding buildings, the actual measurement to the ground vibration of high-rise RC building blasting demolition was carried out, and the peak ground velocity, peak frequency, duration and response spectrum was analyzed. The conclusions are drawn that collapse vibration has greater effect than blasting vibration and its frequency is lower, which is more likely to cause resonance of buildings; the vertical component peak of collapse vibration velocity is the largest, and the attenuation of that is the rapidest along with the increase of the distance. Blasting vibration also has the same law; the commonly-used formulas for calculating collapse vibration cannot estimate reasonably on the different directions of collapse; comparing the response spectrum of each point with the designed spectrum, it is explained that this blasting demolition didn’t cause substantial damage to the surrounding buildings from the aspect of seismic design.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-10-15;改回日期:2018-02-05。
基金项目:地震行业科研专项项目（201508023）；国家自然科学基金项目（51308516）；中国地震局创新团队发展计划资助
作者简介:刘琎(1992-),男,硕士研究生,主要从事爆破拆除地而振动研究.E-mail:liujin_2008512@126.com
通讯作者:杨永强(1983-),男,副研究员,博士,主要从事结构抗震与地震动特征研究.E-mail:yangyounqiang@iem.ac.cn
更新日期/Last Update: 1900-01-01