| 体内预应力组合梁混凝土预压应力分析 |
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| 引用本文： | 周安,戴航,刘其伟.体内预应力组合梁混凝土预压应力分析[J].工业建筑,2005,35(Z1):94-96. |
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| 作者姓名： | 周安 戴航 刘其伟 |
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| 作者单位： | 东南大学,南京,210096 |
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| 基金项目： | 江苏省交通厅资助(03y031). |
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| 摘 要： | 针对在混凝土翼板中设置后张预应力的连续组合梁,提出由分担预加轴力、主弯矩和次弯矩产生的混凝土法向应力计算公式,主要分析施加于混凝土翼板的预应力通过剪力键向钢梁传递的力学模型,建立混凝土翼板承担的预压力沿梁纵轴的分布函数和理论解,求得考虑剪力键柔性的混凝土法向应力计算公式,作为组合梁抗裂设计依据。
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| 关 键 词： | 预应力 组合梁 剪力键 抗裂 |
| 修稿时间： | 2005年3月31日 |
ANALYSIS OF NORMAL STRESS OF CONCRETE FOR PRESTRESSED COMPOSITE BEAM |
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| Zhou An,Dai Hang,Liu Qiwei.ANALYSIS OF NORMAL STRESS OF CONCRETE FOR PRESTRESSED COMPOSITE BEAM[J].Industrial Construction,2005,35(Z1):94-96. |
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| Authors: | Zhou An Dai Hang Liu Qiwei |
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| Affiliation: | Southeast University Nanjing 210096 |
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| Abstract: | For the post tensioned prestressed steel concrete composite beam,a method of calculating concrete normal stress is presented.A model of mechanics of transferring prestress from concrete slab to steel girder by shear connectors is analyzed.Function and theoretical solution of axial prestress of concrete slab is established.It gives a basis for design of crack resistance of composite beam. |
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| Keywords: | prestress composite beam shear connector crack resistance |
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