期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2017
卷号：6
期号：4
页码：5850
DOI：10.15680/IJIRSET.2017.0604198
出版社：S&S Publications
摘要：An arrangement of intersecting beams placed at regular interval and interconnected to a slab of nominalthickness is known as Grid slab or Waffle slab. These slabs are used to when a large column free area is the mainrequirement. There are various methods available for analyzing the grid slab system. In present study some of thesemethods are studied namely Rankine’s Grashoff’s method, Timoshenko’s plate theory and stiffness method andcompared with each other. The comparison is done on the basis of flexural parameters such as bending moments, shearforces and deflection obtained from various methods. The parameters considered for study include span to depth ratio,spacing of transverse beams, thickness of web and thickness of flange. The magnitude of span to depth ratio consideredis 16 to 60. The spacing of transverse beams is varied from 0.75m to 1.75 m. Thickness of slab and the ribs are madeconstant and are equal to 0.1m and 0.15m respectively. The bending moment, the shear force and the mid spandeflection developed in grid floor beams have been predicted by conventional and numerical methods and the resultsare compared and software validated. The parametric study is carried out using the model proposed by ETABS.15software. More over the cost analysis is carried out with the help of MS.EXCEL program for finding economicaldesign.
