Shear in One-Way Slabs under Concentrated Load Close to Support
Shear in One-Way Slabs under Concentrated Load Close to Support
复制标题
靠近支撑的集中荷载作用下单向板的剪切
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
J. Walraven
中科院分区：
文献类型：
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作者：
E. Lantsoght;C. Veen;J. Walraven
集中荷载作用下的单向板一般通过验算有效宽度上的梁抗剪和冲切抗剪来进行抗剪设计。关于集中荷载作用下单向板的抗剪性能，目前只有少量的试验数据。为了能够更好地评估单向板的抗剪性，对连续单向板（5 m x 2.5 m x 0.3 m [16.4 ft x 8.2 ft x 11.8 in.]）在支座附近承受集中荷载，荷载位置、横向配筋率和混凝土强度均发生变化。试验结果与规范规定和Regan开发的方法进行了比较。结果表明，在集中荷载作用下，板的抗剪性能不同于梁。
One-way slabs under concentrated loads are generally designed for shear by checking the beam shear resistance and the punching shear resistance over an effective width. Only a small number of test data regarding the shear resistance of one-way slabs subjected to concentrated loads is currently available. To be able to better evaluate the shear resistance of one-way slabs, a series of experiments was carried out on continuous one-way slabs (5 m x 2.5 m x 0.3 m [16.4 ft x 8.2 ft x 11.8 in.]) subjected to concentrated loads close to the supports, in which the load position, transverse reinforcement ratio, and concrete strength were varied. The test results are compared with code provisions and a method developed by Regan. The results show a different behavior in shear for slabs under concentrated loads than for beams.