无粘结部分预应力钢筋混凝土迭合梁的试验研究  

Experimental Study on Unbonded Recessed Beams of Partical Prestressed Reinforced Concrete

作　　者：陆洪健 赵志方[2] 高延民[3] 赵志刚[4] 

机构地区：[1]深圳招商局房地产有限公司,深圳518067 [2]清华大学水电工程系,北京100084 [3]烟台大学土木系,山东烟台264005 [4]清华大学软件学院,北京100084

出　　处：《三峡大学学报（自然科学版）》2003年第3期199-204,共6页Journal of China Three Gorges University：Natural Sciences

基　　金：山东省自然科学基金(Q2001F02)

摘　　要：对无粘结部分预应力混凝土迭合梁的试验过程和取得的成果进行了阐述和分析,并就荷载预应力、非预应力纵向受拉钢筋应力超前和后浇层混凝土应变滞后、平均截面应变、荷载-挠度关系、纯弯段梁顶混凝土的压应变分布及破坏特点做了详尽分析,为无粘结部分预应力混凝土迭合梁正截面承载能力计算提供试验数据。The unbonded beams of partical prestressed reinforced concrete(PPRC) recessed are studied experimentally. Based on the experimental results,the load prestress,the stress forereached of the axial tension steel and something of the recessed concrete beam such as the strain delay,the average cross-section strain, the relationship between load and deflection,the strain distribution and the failure features of the rescessed concrete beam, are all analysed in detail. The test data are available for calculating the section load-bearing capacity of the unbonded recessed beams of PPRC.

关 键 词：无粘结 预应力混凝土 迭合梁 挠度 裂缝 正截面承载力 

分 类 号：TU378.2[建筑科学—结构工程]