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| 钢筋混凝土弯扭构件的全过程分析 | |
| 引用本文： | 程远兵,康谷贻,程文瀼.钢筋混凝土弯扭构件的全过程分析[J].东南大学学报(自然科学版),2006,36(1):97-101. |
| 作者姓名： | 程远兵 康谷贻 程文瀼 |
| 作者单位： | 1. 东南大学土木工程学院,南京,210096;南阳理工学院土木工程系,南阳,473004 2. 天津大学建筑工程学院,天津,300072 3. 东南大学土木工程学院,南京,210096 |
| 摘 要： | 为了解决以扭为主和以弯为主的钢筋混凝土弯扭构件的分析模型不统一问题,建立了改进的空间桁架模型.该改进的空间桁架模型是由4个平面桁架或由3个平面桁架和1个顶部斜压板组成的空心方管形截面构件.以此模型比拟钢筋混凝土弯扭构件,建立了分析模型的平衡方程和变形协调方程,通过引入顶面混凝土的开裂强度条件和破坏强度条件,提出了钢筋混凝土弯扭构件受力的全过程分析方法.与试验结果的对比表明,该方法既适用于以扭为主,也适用于以弯为主的弯扭构件,解决了扭型破坏与弯型破坏的不连续问题,该方法可用于任何扭弯比情况下的弯扭构件的全过程分析. |
| 关 键 词： | 钢筋混凝土 弯扭构件 空间桁架模型 全过程分析 |
| 文章编号： | 1001-0505（2006）01-0097-05 |
| 收稿时间： | 05 23 2005 12:00AM |
| 修稿时间： | 2005-05-23 |
Whole working history analysis of reinforced concrete members subjected to flexure-torsion loads |
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| Cheng Yuanbing,Kang Guyi,Cheng Wenrang.Whole working history analysis of reinforced concrete members subjected to flexure-torsion loads[J].Journal of Southeast University(Natural Science Edition),2006,36(1):97-101. | |
| Authors: | Cheng Yuanbing Kang Guyi Cheng Wenrang |
| Institution: | 1.College of Civil Engineering, Southeast University, Nanjing 210096, China; 2.Department of Civil Engineering, Nanyang Institute of Technology, Nanyang 473004, China; 3.College of Civil Engineering, Tianjin University, Tianjin 300072, China |
| Abstract: | To resolve the dissimilarity problem of analysis model in flexure-predominant and torsion-predominant reinforced concrete members,an improved space truss model was established.The model with tubular rectangle section is composed of four plane-trusses or three plane-trusses with a diagonal compression slab. By truss analogy to reinforced concrete flexure-torsion members,equilibrium equations and compatibility equations are set up,and by means of the strength condition in cracking and strength ultimate limit state of top concrete,analysis method of reinforced concrete members subjected to flexure-torsion loads during all loading history is presented.Comparison with test results shows this method can be used in both flexure-predominant and torsion-predominant members,and it solves the discontinuous problem from torsion-predominant to bending-predominant members or bending-predominant to torsion-predominant members.The method can be used in flexure-torsion members with any torque to flexure moment ratio. |
| Keywords: | reinforced concrete members subjected to flexure-torsion loads space truss model whole working history analysis |
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