钢筋混凝土单向区格板经济厚度研究
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(湖南大学土木工程学院, 长沙 410082)[摘要] 混凝土梁板结构是现阶段结构设计中很常用的结构形式，而板作为这种结构形式的重要组成部分，寻求一个比较经济合理的板厚对于整个结构设计和建筑物造价都是相当重要的.本文以肋梁楼盖的单向板为对象，参照现行混凝土和钢筋市场价格行情，通过控制最低造价考虑跨度、钢筋、楼面荷载以及混凝土强度的变化来讨论混凝土楼板板厚的变化规律，最终给出不同荷载，不同跨度,不同强度等级钢筋以及不同混凝土强度下楼板的经济厚度，供土木人在进行楼板设计时借鉴和参考。[关键词] 梁板结构;单向板;造价;经济板厚;参数中图分类号：TU375.2 文献标识码：A 文章编号：1002-848X(2013)S1-0681-03Study of economic thickness of one-way slabs of reinforced concreteZhang Wangxi，Zhang Zai(College of Civil Engineering, Hunan University, Changsha 410082, China)Abstract: The beam and slab structures of reinforced concrete is a very common structure type at the present stage of design, so trying to find a reasonable and economic thickness of slab is very important for the whole of structure design and the cost of building. This article’s subject is the monolithic beam and slab structures with one-way slabs, considering the present price of concrete and steel bar. It discusses the principles of thickness of slabs in different conditions, like different loading, span, strength of steel bar and concrete by the determining criterion, the lowest cost of the slab. Finally the article will show the economic thickness of slab in different cases to help structural engineers design the beam and slab structures.Keywords: beam and slab structures; one-way slabs; cost; economic thickness of slabs; different conditions
