[1]吴二军,李爱群,郭彤,等.型钢对拉螺栓柱托换节点抗剪性能试验研究[J].东南大学学报(自然科学版),2003,33(5):631-634.[doi:10.3969/j.issn.1001-0505.2003.05.021]
 Wu Erjun,Li Aiqun,Guo Tong,et al.Experimental study on shear behavior of column-underpinning-node composed of profiled bar and bolt[J].Journal of Southeast University (Natural Science Edition),2003,33(5):631-634.[doi:10.3969/j.issn.1001-0505.2003.05.021]
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型钢对拉螺栓柱托换节点抗剪性能试验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
33
期数:
2003年第5期
页码:
631-634
栏目:
土木工程
出版日期:
2003-09-20

文章信息/Info

Title:
Experimental study on shear behavior of column-underpinning-node composed of profiled bar and bolt
作者:
吴二军1 李爱群1 郭彤1 卫龙武2 刘先明1
1 东南大学土木工程学院, 南京 210096; 2 江苏东大特种基础工程公司, 南京 210096
Author(s):
Wu Erjun1 Li Aiqun1 Guo Tong1 Wei Longwu2 Liu Xianming1
1 College of Civil Engineering, Southeast University, Nanjing 210096, China
2 Jiangsu Dongda Special Foundation Engineering Company, Nanjing 210096, China
关键词:
柱托换 试验研究 抗剪承载力 平移工程
Keywords:
column-underpinning experimental study shear capacity movement engineering
分类号:
TU746.3
DOI:
10.3969/j.issn.1001-0505.2003.05.021
摘要:
针对建筑物整体平移工程中的柱托换,提出一种新型柱托换方法,该方法将型钢从四周卡入柱身,用穿柱螺栓将型钢固定,型钢和柱之间填充混凝土.通过对4个试件的节点抗剪试验,证明这种托换节点在重复竖向荷载作用下具有良好的抗剪能力和延性.分析认为托换节点的竖向荷载由螺杆的抗剪承载力、新旧混凝土连接界面的抗剪能力和型钢翼缘卡入柱身产生的咬合力共同承担,由此给出了型钢对拉螺栓柱托换节点的抗剪承载力计算公式,式中通过综合作用系数γ考虑了3部分的共同作用和相互影响.文中还建议了新旧混凝土界面抗剪强度按0.3ft取值.最后提供了工程算例.
Abstract:
A new column-underpinning technique applied to build monolithic movement engineering was put forward. Profiled bar embedded in column, bolt penetrated through column and concrete filled between profiled bar and column compose the underpinning node. The shear experiment of four members shows this column-underpinning-node has better bearing capacity and ductility. The vertical load on the underpinning-node resisted by shear capacity of bolt, new-old concrete interface and profiled bar fringe embedded in column. A formula calculating bearing capacity of the underpinning was advised, and the combined work was calculated by cooperate coefficient γ.The new-old concrete interface shear strength was calculated approximately by 0.3ft was also advised. At last, one design example was provided.

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备注/Memo

备注/Memo:
作者简介: 吴二军(1972—),男,博士生; 李爱群(联系人),博士,教授,博士生导师,aiqunli@public1.ptt.js.cn.
更新日期/Last Update: 2003-09-20