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| T形柱框架节点受剪承载力的非线性有限元分析 | |
| 引用本文： | 马乐为,陈昌宏,张同亿. T形柱框架节点受剪承载力的非线性有限元分析[J]. 西安建筑科技大学学报(自然科学版), 2006, 38(2): 232-235 |
| 作者姓名： | 马乐为 陈昌宏 张同亿 |
| 作者单位： | 1. 西安建筑科技大学土木工程学院,陕西,西安,710055 2. 东南大学土木工程学院,江苏,南京,210096 3. 中元国际工程设计研究院,北京100089 |
| 基金项目： | 陕西省自然科学研究计划项目(2001C33)，陕西省教育厅专项科研计划项目(02JK122) |
| 摘 要： | 异形柱结构体系在国内已使用多年,但有关异形柱框架节点的破坏形态、受剪承载力的研究还很不充分.虽然《混凝土异形柱结构技术规程》(征求意见稿)建立了节点的受剪承载力公式,但该式并未考虑到异形柱与矩形柱框架节点相比较而言的某些特殊性.利用ANSYS对T形柱节点进行了低周反复荷载作用下的非线性有限元分析,指出了该节点核心区混凝土受力机理不符合斜压杆原理,提出了由于柱翼缘板的存在,使得节点核心区的裂缝分布形态不同于矩形柱框架节点,讨论了轴压比与受剪承载力的关系,柱翼缘板宽度和梁柱抗弯刚度比对节点破坏形态的影响. |
| 关 键 词： | T形柱框架节点 非线性有限元分析 柱翼缘板宽度 |
| 文章编号： | 1006-7930（2006）02-0232-04 |
| 收稿时间： | 2005-05-13 |
| 修稿时间： | 2005-05-13 |
Non-linear FEA of mechanics behavior of T-shaped column frame joints |
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| MA Le-wei,CHEN Chang-hong,ZHANG Tong-yi. Non-linear FEA of mechanics behavior of T-shaped column frame joints[J]. Journal of Xi'an University of Architecture & Technology, 2006, 38(2): 232-235 | |
| Authors: | MA Le-wei CHEN Chang-hong ZHANG Tong-yi |
| Abstract: | The structural system of special-shaped columns has long been used in China,yet the study of mechanics behavior about special-shaped column frame joints is for from enough.The shearing load capacity equation was established in technical specification for special-shaped columns,but some factors were not fully considered in this specification.Based on the low cyclic loading test of T-shaped column frame joints.the non-linear finite element analysis of mechanics behavior of joints was carried out by ANSYS.Comparing with the test results,the paper discussed the factors of the axial compressive ratio and the width of column's wing that can influence crack distribution and destroy mechanism of special-shaped column joints.The article also points out that the bending stiffness between beam and column can determine the shear load-carrying capacity of joints. |
| Keywords: | T-shaped column frame joints Non-linear FEA width of column's wing |
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