集中荷载两对边支承预应力空心抵抗剪强度试验研究

Expreiments and Research on Shear Strength of Two-Side Supported Prestressed RC Hollow Slabs With Local Concentrated Load

根据四块预应力空心单板和四块预应力空心拼缝板的试验结果，研究了板的破坏形态和破坏机理，分析了抗剪承载力的影响因素，建立了抗剪承载力的计算公式。该公式具有较好的拟合优度，并且安全、经济、可靠。

According to the experimental results of four single hollow slabs and four jointed hollow slabs.This paper analyzes the failure mode,failure mechanism and shear properties of the slab and gives the main effective factors of its shear stength.Furthermore,this paper puts foreard the formula for the calculation of shear stength of slabs.The calculated results are in good agreement with the rneasured ones.The suggested formulas were found to be very economic,safe and reliable and of great practical application.