钢纤维混凝土屋面板试验研究和正截面承载能力与抗裂性计算方法的探讨  

Experimental Study of SFRC Waterproof Roof Slab and Discussion on Formulas of Flexural Strength and Crack Resistance

作　　者：李钧天[1] 

机构地区：[1]上海大学

出　　处：《建筑结构学报》1996年第6期51-57,共7页Journal of Building Structures

摘　　要：在ＳＦＲＣ自防水预应力钢筋混凝土屋面板的试验基础上，进行了数理统计分析和理论研究。研究结果证明受弯构件正截面承载能力与抗裂弯矩均远大于按现有计算公式的计算值，作者提出了修改计算公式的建议。根据试验结果，这种屋面板足以保证正常使用和抗渗性能要求，并能提高耐久性。由于防水层的取消，采用这种屋面板可以节约造价并减轻屋面自重。Based on the experiment of steel fiber reinforced concrete(SFRC)precast roof slab, analyses through mathematical statistics and theoretical researches.have been performed. The study results proved that the fie-cural strength and cracking load (moment) far exed the values calculated according tO the available computing formulas. Therefore, the author puts forward a proposal about the modification of these computing formulas.Test showed that the serviceability and watertightness of such roof slab can be satisfied and its durability enhanced, It costs less to build this kind of roof since its dead weight is decreased due to the elimination of waterproofing.

关 键 词：钢纤维混凝土 屋面防水材料 屋面板 承载能力 

分 类 号：TU576[建筑科学—建筑技术科学] TU528.72