- 摘 要
-
陳世鳴 （同濟大學結構工程與防災研究所 上海 200092）
[提要] 針對鋼-混凝土組合樓板疊合面的抗剪強度、連續(xù)組合板設計的縱向抗剪強度和剪跨以及端部錨固對板承載力的影響等問題進行了討論和分析。在組合樓板的承載力設計中，應對支座端部的豎向剪力進行疊合面的縱向抗剪強度驗算。對于連續(xù)組合樓板，可采用連續(xù)跨中正彎矩區(qū)的長度與簡支樓板跨度等效的原則進行剪跨計算。端部錨固栓釘對組合樓板縱向抗剪強度的貢獻可采用量化的公式進行計算。
[關鍵詞] 組合樓板 承載力 疊合面抗剪 端部錨固The shear-bond strength,the longitudinal shear strength and the shear span in design of continuous composite slabs as well as the influence of the end anchorage on the load carrying capacity of the slabs are commented. In design practice of composite slabs with profiled steel sheeting,the vertical shear force at the exterior support should be checked against the shear-bond resistance in an empirical formula relating to the test-related parameters. In continuous composite slabs, the shear span is determined based on the assumption that the sagging region length of a continuous composite slab equalizes to the full span of a simply support slab. The influence of the end anchorage to the longitudinal shear strength of the slabs can be evaluated based on the suggested formula.
Keywords: composite slab; load carrying capacity; shear-bond strength; end anchorage
