| 预应力型钢混凝土梁正截面承载力计算 |
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| 引用本文： | 徐杰,傅传国,戴航,周晓娜.预应力型钢混凝土梁正截面承载力计算[J].工业建筑,2007,37(Z1). |
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| 作者姓名： | 徐杰 傅传国 戴航 周晓娜 |
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| 作者单位： | 1. 东南大学,南京,210096
2. 山东建筑大学,济南,250014 |
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| 基金项目： | 山东省教育厅科技计划重点项目(03L05) |
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| 摘 要： | 预应力型钢混凝土梁是在普通型钢混凝土梁的基础上采用预应力技术的一种新型组合结构,它综合预应力混凝土结构和型钢混凝土结构的优点,从而具有更好的力学性能。针对不同的混凝土强度等级、受拉钢筋配筋率和保护层的大小、型钢保护层和预应力度等因素,对6根型钢混凝土梁和7根预应力型钢混凝土梁进行了全过程载荷试验。在试验研究的基础上,借鉴型钢混凝土梁正截面承载力计算方法,推导了预应力型钢混凝土梁正截面承载力计算公式,计算值与试验的结果吻合较好,从而为预应力型钢混凝土梁在实际工程中的应用提供了理论基础。
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| 关 键 词： | 型钢混凝土 预应力 承载力 |
CALCULATION OF BEARING CAPACITY OF PRESTRESSED STEEL REINFORCED CONCRETE BEAM |
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| Xu Jie,Fu Chuanguo,Dai Hang,Zhou Xiaona.CALCULATION OF BEARING CAPACITY OF PRESTRESSED STEEL REINFORCED CONCRETE BEAM[J].Industrial Construction,2007,37(Z1). |
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| Authors: | Xu Jie Fu Chuanguo Dai Hang Zhou Xiaona |
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| Affiliation: | Xu Jie Dai Hang(Southeast University Nanjing 210096)Fu Chuanguo Zhou Xiaona(Shandong Architectural University Jinan 250014) |
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| Abstract: | Prestressed steel reinforced concrete(PSRC) beam is a new type composite beam which uses prestressing technology in steel reinforced concrete(SRC) beam.PSRC beam combines the properties of SRC beam with prestressing technique,which has a better mechanical performance.Six SRC beams and eight PSRC beams have been done and the following aspects have been taken into account: compressive strength of concrete;rebar ratio and cover thickness;H-section steel cover thickness and degree of prestressing.On the basis of experiment,formula of bearing capacity of PSRC beam is deduced.The values of above formula meet well with results of the test,which provide theoretical foundation for practical application of PSRC beam. |
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| Keywords: | SRC prestress bearing capacity |
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