组合楼板纵向抗剪承载力及试验研究

Longitudinal Shear Bearing Capacity of Composite Slabs and Experimental Study

纵向水平剪切粘结破坏为组合楼板的主要破坏模式之一。进行了六块足尺组合楼板的试验研究,采集试验数据并进行回归分析,得到针对YX76—344—688型压型钢板-混凝土组合楼板的剪切粘结承载力计算公式。对比计算结果,试验值是偏于安全的;并进一步分析试验数据,发现当按规范的要求在端部设置抗剪栓钉、横向剪力筋等措施时,其余影响组合楼板纵向抗剪承载力的主要因素有组合楼板的跨度、剪跨比、压型钢板和组合楼板的厚度等。

Longitudinal shear bond failure is the main failure mode of composite slabs, which had six full-scale composite slabs of experimental research, collecting experimental data and regression analysis for YX76-344-688- type steel sheeting-concrete composite slab shear bond capacity formula calculation results with the experimental values compared. The result is somewhat safe, and further analyzes test data, find that when the requirements ac- cording to specifications set at the ends shear studs, horizontal shear reinforcement and other measures, the remai- ning impact composite slabs longitudinal shear capacity of the main factors span composite slabs, shear span ratio, pressure plate and combined slab thickness.