| 外包钢-混凝土连续组合梁的负弯矩极限承载力(英文) |
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| 引用本文： | 陈丽华,李爱群,娄宇,李培彬.外包钢-混凝土连续组合梁的负弯矩极限承载力(英文)[J].东南大学学报,2009,25(1). |
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| 作者姓名： | 陈丽华 李爱群 娄宇 李培彬 |
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| 作者单位： | 陈丽华,Chen Lihua(东南大学土木工程学院,南京,210096;合肥工业大学土木建筑工程学院,合肥,230009);李爱群,Li Aiqun(东南大学土木工程学院,南京,210096);娄宇,李培彬,Lou Yu,Li Peibin(中国电子工程设计院,北京,100840)
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| 摘 要： | 对2根外包钢-混凝土连续梁试件进行了静力加载实验研究与承栽力分析.测量并分析了试件的荷栽-挠度及荷载-应变关系曲线.结果表明:外包钢-混凝土组合梁负弯矩区钢筋和外包钢梁通过抗剪连接措施能有效地共同工作,整体工作性能良好.在承栽能力极限状态,负弯矩和正弯矩最大截面的塑性应变均充分发展,并形成比较理想的塑性铰.随着配筋率的提高,组合梁受弯承栽力明显提高,而延性和转动能力相应降低.在试验数据基础上,给出了外包钢-混凝土组合梁在负弯矩区极限受弯承载力的计算公式,计算结果与实验结果吻合良好.
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| 关 键 词： | 外包钢-混凝土组合梁 连续梁 负弯矩 受弯承载力 |
Ultimate negative bending-moment capacity of outer-plated steel-concrete continuous composite beams |
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| Chen Lihua, Li Aiqun Lou Yu Li Peibin.Ultimate negative bending-moment capacity of outer-plated steel-concrete continuous composite beams[J].Journal of Southeast University(English Edition),2009,25(1). |
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| Authors: | Chen Lihua Li Aiqun Lou Yu Li Peibin |
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| Institution: | 1School of Civil Engineering;Southeast University;Nanjing 210096;China;2College of Civil and Architectural Engineering;Hefei University of Technology;Hefei 230009;China;3 China Electronics Engineering Design Institute;Beijing 100840;China |
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| Abstract: | Static load tests and bearing capacity analyses are carried out for two outer-plated steel-concrete continuous composite beams.The load-deflection curve and the load-strain curve of specimens are obtained and analyzed.The test results indicate that effective cooperation can be achieved by the shear-resistant connection between the reinforcement in the negative moment area and the outer-plated steel beam,and the overall working performance of the composite beams is favorable.At the load-bearing limiting stat... |
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| Keywords: | outer-plated steel-concrete composite beam continuous beam negative moment bending-moment bearing ca-pacity |
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