| 预应力板柱节点抗冲切强度的脱离体模型 |
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| 引用本文： | 王增春,南建林,黄鼎业. 预应力板柱节点抗冲切强度的脱离体模型[J]. 四川建筑科学研究, 2006, 32(5): 11-14 |
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| 作者姓名： | 王增春 南建林 黄鼎业 |
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| 作者单位： | 上海交通大学,上海,200030;中国建筑科学研究院上海分院,上海,200023;同济大学,上海,200092 |
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| 基金项目： | 教育部留学回国人员科研启动基金 |
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| 摘 要： | 采用混凝土双轴应力状态下破坏的修正Mohr—Coulomb准则，建立预应力板柱节点冲切破坏的脱离体模型，考虑预压应力和预应力钢筋曲线对板柱节点抗冲切的有利影响，推导了预应力板柱节点的抗冲切计算公式。与试验数据对比，本文提出的计算公式具有较高的精度。
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| 关 键 词： | 预应力混凝土 板柱节点 冲切强度 |
| 文章编号： | 1008-1933（2006）05-0011-04 |
| 收稿时间： | 2005-12-26 |
| 修稿时间： | 2005-12-26 |
Failure cone model on punching shear strength of prestressed slab-column connections |
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| WANG Zengchun,NAN Jianlin,HUANG Dingye. Failure cone model on punching shear strength of prestressed slab-column connections[J]. Building Science Research of Sichuan, 2006, 32(5): 11-14 |
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| Authors: | WANG Zengchun NAN Jianlin HUANG Dingye |
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| Affiliation: | 1. Shanghai Jiaotong University, Shanghai 200030, China ; 2. Shanghai Branch, China Academy of Building Research, Shanghai 200023, China; 3. Tongji University, Shanghai 200092 ,China |
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| Abstract: | Based on modified Mohr-Coulomb failure criteria of concrete material under biaxial stress, a rigid-plastic failure cone model of disengagement is presented to yield an analytical solution of the strength of punch shear in prestressed beam-column connection using principle of virtual work. The effective contribution of pre-compression of concrete and vertical component of prestress in curvous prestressed bar is addressed. The prediction of analytical solution was verified extensively against available experiment data and approached the result very well. |
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| Keywords: | prestressed concrete beam-column joint strength of punching shear |
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