傅菊根;姜建农;张宇本;
FU Ju-gen~1,JIANG Jian-nong~2,ZHANG Yu-ben~1(1.Anhui University of Science and Technology,Huainan 232001,Anhui,China;2.Jiangxi Institute of Industrial Engineering,Pingxiang 337055,Jiangxi,China)

• 1:安徽理工大学
• 2:江西工业工程职业技术学院
• 3:安徽理工大学 安徽淮南232001
• 4:江西萍乡337055

摘要(Abstract)：

对于爆破拆除砖结构的烟囱、水塔等建筑物的切口高度,一般采用建筑物壁厚的1.5².0倍,能满足炸高要求,可以保证其定向倒塌。但对于钢筋混凝土等高耸建筑物,由于爆破切口处有钢筋支撑,如果还按此经验取值,则难以保证其定向倒塌。为此,本文根据压杆的强度、刚度要求和稳定承载能力极限,应用钢结构设计原理,计算钢筋混凝土高耸建筑物的切口高度。其计算结果与列举的工程爆破实践切口高度的取值相吻合,对类似工程有参考价值。
It is a common knowledge that the notched height of tall reinforced concrete building demolished by blasting is 1.5～2.0 times of the wall thickness of building,which meets the requirements of stand-off and directional collapse.But in the case of a tower building,since there is a supporting steel bar at the blasting cut,the height deducted from the common knowledge is hard to ensure directional collapse.For this reason,the present paper,according to the strength rigidness requirements and stable limit of bearing capacity of compression bar,the notched height of reinforced concrete tower building can be calculated.The produced results agree with the ones used in the discussed blasting engineering,and therefore,are valuable to the similar engineering.

关键词(KeyWords)： 高耸建筑物;爆破拆除;切口高度;理论计算
Tower building;Blasting demolition;Notched height;Theoretical calculation

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 傅菊根;姜建农;张宇本;
FU Ju-gen~1,JIANG Jian-nong~2,ZHANG Yu-ben~1(1.Anhui University of Science and Technology,Huainan 232001,Anhui,China;2.Jiangxi Institute of Industrial Engineering,Pingxiang 337055,Jiangxi,China)

参考文献(References)：

• (1)刘殿中.工程爆破实用手册(M].北京:冶金工业出版社,1999.
• (2)金骥良.高耸建筑物定向爆破倒塌设计参数的计算公式[A].第七届工程爆破学术会议论文集[C].成都,2001,416-421.
• (3)赵熙元,柴昶,武人岱.建筑钢结构设计手册[M].北京:冶金工业出版社,1995.
• (4)刘声扬.钢结构[M].武汉:武汉工业大学出版社,1992.
• (5)梁启智.钢结构[M].广州:华南理工大学出版社,2003.
• (6)杨年华.薄壁钢筋混凝土烟囱和水塔定向爆破拆除[J].工程爆破,2005,11(4):42-45.
• (7)宝志华,张富贵,蒋琳,等.在苛刻环境中控制爆破拆除大吨位钢筋砼水塔[J].工程爆破,2005,11(4):46-49.
• (8)焦永斌.倒锥壳水塔控制爆破实践[J].爆破,2004(3):52-55.