| 简支深肋组合扁梁的抗弯承载力计算 |
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| 引用本文： | 石永久,李秋喆,王元清,杨璐.简支深肋组合扁梁的抗弯承载力计算[J].华南理工大学学报(自然科学版),2006,34(7):77-81. |
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| 作者姓名： | 石永久 李秋喆 王元清 杨璐 |
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| 作者单位： | 1. 清华大学,土木工程系,北京,100084
2. 清华大学,深圳研究生院,广东,深圳,518057 |
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| 摘 要： | 针对深肋组合扁梁在塑性受力阶段截面应力状态的复杂性，为克服现有的抗弯承载力计算方法较多地依靠工程经验的缺点，文中在对两个简支深肋组合扁梁进行承载试验的基础上，提出了采用等效矩形应力图的计算方法，建立了深肋简支组合扁梁的截面抗弯承载力计算模型，推导了截面抗弯承载力的计算公式，利用现有的试验结果给出了混凝土峰值应力折减系数建议值．试验结果初步验证了所建立的组合扁梁抗弯承载力计算公式的正确性．
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| 关 键 词： | 组合扁梁 抗弯承载力 试验研究 设计方法 深肋压型钢板 |
| 文章编号： | 1000-565X（2006）07-0077-05 |
| 收稿时间： | 2005-07-13 |
| 修稿时间： | 2005年7月13日 |
Calculation of Bending Resistance for Simply-Supported Composite-Slim Beam with Deep Rib |
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| Shi Yong-jiu,Li Qiu-zhe,Wang Yuan-qing,Yang Lu.Calculation of Bending Resistance for Simply-Supported Composite-Slim Beam with Deep Rib[J].Journal of South China University of Technology(Natural Science Edition),2006,34(7):77-81. |
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| Authors: | Shi Yong-jiu Li Qiu-zhe Wang Yuan-qing Yang Lu |
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| Institution: | 1. Dept. of Civil Engineering, Tsinghua Univ. , Beijing 10008g, China; 2. Graduate School at Shenzhen, Tsinghua Univ. , Shenzhen 518057, Guangdong, China |
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| Abstract: | In the plastic stage, the composite-slim beam with deep rib is of a complex stress distribution in its section, so the existing calculation methods of bending resistance depend greatly on engineering experiences. In order to solve this problem, a method, equivalent rectangular stress distribution, is proposed based on the experiments conducted on two simply-supported composite-slim beam specimens. A model for calculating the bending resistance of the beam is then established and the corresponding formulae are derived. Moreover, a reduction coefficient for concrete peak stress is suggested on the basis of the existing experimental results, preliminarily confirming the correctness of the proposed formulae. |
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| Keywords: | composite-slim beam bending resistance experimental investigation design method deep-rib deck |
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