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| 钢筋混凝土短梁挠度的研究 | |
| 引用本文： | 熊进刚,习建红,李艳,程文瀼.钢筋混凝土短梁挠度的研究[J].南昌大学学报(工科版),2005,27(4):54-58. |
| 作者姓名： | 熊进刚 习建红 李艳 程文瀼 |
| 作者单位： | 1. 南昌大学,建筑工程学院,江西,南昌,330029 2. 樟树市建筑工程质量监督站,江西,樟树,331200 3. 东南大学,土木工程学院,江苏,南京,210096 |
| 基金项目： | 南昌大学基础理论基金项目（Z1985） |
| 摘 要： | 分析了钢筋混凝土简支短梁和连续短梁实测荷载-挠度曲线的特征,剪切斜裂缝的出现引起钢筋混凝土短梁荷载-挠度曲线的明显转折,剪切刚度和剪切变形对钢筋混凝土短梁的挠度有较大影响.斜裂缝出现后,箍筋和水平腹筋对钢筋混凝土短梁的剪切刚度有较大影响,从而对钢筋混凝土短梁的挠度产生较大影响.对钢筋混凝土短梁,只考虑弯曲变形按现行设计规范计算所得挠度与试验实测挠度误差显著,剪切效应对钢筋混凝土短梁挠度的影响不可忽略. |
| 关 键 词： | 混凝土 短梁 挠度 剪切 |
| 文章编号： | 1006-0456（2005）04-0054-05 |
| 收稿时间： | 2005-02-28 |
| 修稿时间： | 2005年2月28日 |
Research on Deflection of R.C.Short Beams |
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| XIONG Jin-gang,XI Jian-hong,LI Yan,CHENG Wen-rang.Research on Deflection of R.C.Short Beams[J].Journal of Nanchang University(Engineering & Technology Edition),2005,27(4):54-58. | |
| Authors: | XIONG Jin-gang XI Jian-hong LI Yan CHENG Wen-rang |
| Affiliation: | 1. School of Architectural Engineering, Nanchang University, Nanchang 330029, China; 2. Construction Engineering Quality Supervision Station ,Jiangxi Zhangshu 331200, China; 3. School of Civil Engineering, Southeast University, Nanjing 210096, China |
| Abstract: | According to others' and the author's test results,the characteristic of the load-deflection curve of R.C.short beams with simple supports and continuous supports is analysed.The turning point of the load-deflection curve is induced by the inclined cracks.The deflection of the short beam is influenced largely by the shear rigidity and the shear deformation.After the inclined cracks appear,stirrups and horizontal web reinforcements have large effects on the shear rigidity and the deflection of short beams.The calculating results according to the current design code are not consistent with the test results,and the effect of shear on the deflection can not be ignored. |
| Keywords: | concrete short beam deflection shear |
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