The Study On Steel Rib-Concrete Composite Floor

Steel-concrete composite structure is a new type of structure which developed on the basis of steel and reinforced concrete structures.It combines the advantages of steel and concrete structure, has the significant of technical ,economic and social benefits.Aerated concrete is a good "green products", it has bulk density of light, high performance thermal insulation, sound-absorbing effect is good, there are certain advantages of strength and processability, low-rise residential buildings are already in a growing number of applications .This paper will be reinforced concrete, aerated concrete, and thin-walled steel combination of these three materials to form a new steel rib - concrete floor. With aerated concrete slab as a template, save a lot of temporary templates to speed up the construction cycle, better insulation, heat insulation, sound insulation. However, compared with material strength and stiffness of ordinary concrete, aerated concrete slab has a large gap, so a ribbed floor to ensure the requirements.The nonlinear finite element method to analyze the performance of its force to determine the appropriate connector spacing; through different forms of stress distribution of load compared to discuss the form and connections load spacing on the impact of effective flange width; analysis of the bearing capacity of composite slabs.