| 水工预应力钢筋砼迭合构件正截面抗裂度研究 |
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| 引用本文： | 赵瑜,李树瑶.水工预应力钢筋砼迭合构件正截面抗裂度研究[J].华北水利水电学院学报,1991(3):43-49. |
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| 作者姓名： | 赵瑜 李树瑶 |
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| 作者单位： | 华北水利电学院土木系，华北水利电学院土木系 |
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| 摘 要： | 本文通过对二次受力预应力钢筋砼迭合梁受力性能分析,研究了荷载预应力、预应力损失分期进行、钢筋应力超前和砼应变迟后现象等因素对其正截面抗裂度的影响。文中提出了适合水工预应力钢筋砼迭合梁抗裂度计算的方法,供修订《水工钢筋检结构设计规范》(SDJ20—78)时参考。
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| 关 键 词： | 预应力砼迭合梁 正截面 抗裂度 |
Research on Crack Resistance of Prestressed Concrete Composite Momters in Hydraulic Engineering |
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| Zhao Yu,Li Shuyao.Research on Crack Resistance of Prestressed Concrete Composite Momters in Hydraulic Engineering[J].Journal of North China Institute of Water Conservancy and Hydroelectric Power,1991(3):43-49. |
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| Authors: | Zhao Yu Li Shuyao |
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| Affiliation: | Zhao Yu;Li Shuyao |
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| Abstract: | In this paper, Based on the analysis for the mechanical proper- ties of prestressed concrete composite beams under two-stage lo- ading, we study the influeuce of load prestress, prestrsss loss ocurring by stages, stress excess and strain lag etc, on the crack resistance. The calculating method of crack resistance suitable for Prestressed concrete composite beams in hydraulic engineer- ing is Presented, and it can be used as a reference to revise the Hydraulic Concrete Structure Design Code (SDJ20--78). |
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| Keywords: | Prestressed Concrete Composite Beam Normal Section Crack Resistance |
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