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预应力砌块砌体预应力损失的试验研究与分析
Experimental Study and Analysis on Prestressed Loss of Prestressed Block and Masonry
2010年第4期
混凝土小型空心砌块;预应力;损失
Concrete small hollow blocks; Prestressed; Loss
2010年第4期
1000-4637(2010)04-66-03
江苏省自然科学基金(BK2007585);江苏省教育厅自然科学研究项目(06KJB560037)
郭樟根,孙伟民,彭 阳
南京工业大学土木工程学院,210009

郭樟根,孙伟民,彭 阳

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摘 要:和预应力钢筋混凝土一样,预应力砌体也会发生预应力损失。因此,确定各个阶段的预应力损失值是进行预应力砌体结构设计的基础。通过试验研究了预应力砌块砌体的预应力损失随时间的变化规律,测试了各个阶段以及最终的预应力损失量。结果表明,预应力砌块砌体的预应力损失值不大,且前期发展较快。详细分析了预应力砌块砌体结构中预应力损失的各个组成部分,研究了预应力损失各个组成部分的大小和发展阶段。在此基础上,提出了预应力砌块砌体预应力损失的计算公式和总损失值。 Abstract: There is prestressed loss in prestressed masonry just like prestressed reinforced concrete. Determining prestressed loss value in each phase is the base of structure design of prestressed masonry. The variation law of the prestressed loss of prestressed block and masonry by time is studied through experiment, and the prestressed loss in each and final phase is tested. The results indicate that the prestressed loss value of prestressed block and masonry is small, and it develops quickly in early stage. Each component of prestressed loss in prestressed block and masonry structure is analyzed, and the value and development phase of each component of prestressed loss is researched. On this base, calculation formula of prestressed loss of prestressed block and masonry and total loss value is proposed.
英文名 : Experimental Study and Analysis on Prestressed Loss of Prestressed Block and Masonry
刊期 : 2010年第4期
关键词 : 混凝土小型空心砌块;预应力;损失
Key words : Concrete small hollow blocks; Prestressed; Loss
刊期 : 2010年第4期
DOI :
文章编号 : 1000-4637(2010)04-66-03
基金项目 : 江苏省自然科学基金(BK2007585);江苏省教育厅自然科学研究项目(06KJB560037)
作者 : 郭樟根,孙伟民,彭 阳
单位 : 南京工业大学土木工程学院,210009

郭樟根,孙伟民,彭 阳

摘要
参数
结论
参考文献
引用本文

摘   要:和预应力钢筋混凝土一样,预应力砌体也会发生预应力损失。因此,确定各个阶段的预应力损失值是进行预应力砌体结构设计的基础。通过试验研究了预应力砌块砌体的预应力损失随时间的变化规律,测试了各个阶段以及最终的预应力损失量。结果表明,预应力砌块砌体的预应力损失值不大,且前期发展较快。详细分析了预应力砌块砌体结构中预应力损失的各个组成部分,研究了预应力损失各个组成部分的大小和发展阶段。在此基础上,提出了预应力砌块砌体预应力损失的计算公式和总损失值。

Abstract: There is prestressed loss in prestressed masonry just like prestressed reinforced concrete. Determining prestressed loss value in each phase is the base of structure design of prestressed masonry. The variation law of the prestressed loss of prestressed block and masonry by time is studied through experiment, and the prestressed loss in each and final phase is tested. The results indicate that the prestressed loss value of prestressed block and masonry is small, and it develops quickly in early stage. Each component of prestressed loss in prestressed block and masonry structure is analyzed, and the value and development phase of each component of prestressed loss is researched. On this base, calculation formula of prestressed loss of prestressed block and masonry and total loss value is proposed.

关键词:
混凝土小型空心砌块;预应力;损失
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通过对预应力混凝土空心砌块砌体预应力损失的试验研究和理论分析,提出了预应力砌块砌体预应力损失计算公式及预应力总损失量。研究结果表明:预应力混凝土砌块墙体的预应力损失值不大,预应力总损失值可以取20%。考虑到本文试验研究数量和测试时间的缺乏,本文提出的计算公式和总损失量还有待更深入、更多的试验研究和分析的检验。

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[2] 郭樟根,孙伟民,等.预应力混凝土小型空心砌块带窗洞砌体抗裂研究[J].建筑结构,2004(3):63-65.
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[6] SUN Weimin, GUO Zhanggen, HU Xiaoming. Experimental Study of Prestressed Block Masonry Walls Under Low Frequency Cyclic Static Load. Proceeding of the Third International Conference on Earthquake Engineering,Nanjing, China,October,2004.
[7] W.G.柯廷,G.肖,J.K.贝克 著.配筋及预应力砌体设计.赵梦梅,咸大庆,等译.北京:中国建筑出版社,1992.
[8] Honlon J R C. Prestressed concete masonry[J]. Concrete.1970,12(4):356-358.
[9] Robert Rodriguez, Hamid Ahmad A, Jesus Larralde. Flexural Behavior of Post—Tensioned Concrete Masonry Walls Subjected to Out-of-Plane Loads. ACI Structural Journal ,1998 ,95 (1) :61-70.
[10] Tatsa E, Yishai. Loss of steel in prestressed concrete block work walls[J]. The structural Engineer,1973,51(5) :177-182.
[11] Shrive N G, Ezzeldin Y, Sayed Ahmed. Post-Tensioning Masonry Diaphragm Walls Using Carbon Fibre Reinforced Plastic (CFRP) Tendons. Proceedings of the 11 th International Brick/block Masonry Conference. Shanghai :1997(10).

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