Mechanical Properties Of Concrete Sandwich Panel With Opening

In recent years, CS slab structural building system adapts to the requirement of the reformation of the dwelling house. It has good economic benefit and wide perspective of the application, so it has caused mush attention of a large of civil engineers. On the other hand, there are lots of researches on mechanical properties of CS slab structural building system.By now, there is no research about the racking performance of CS Panel with opening. The damage characteristics of CS Panel with opening is not clear, such as the ultimate bearing capacity, component design method, structural measures tend to be conservative values standard, it is a waste of materials, and to give a design to bring certain difficulties. So, for CS Panel with opening, the bearing capacity and destruction features need to conduct in-depth analysis and research.This paper set up the total six groups of model, Analysis the CS Panel with opening vertical ultimate bearing capacity and the shear capacity, Three groups of model is the vertical ultimate bearing capacity of analysis, were considered the hole width, height and even the beam subjected to pull reinforcement ratio of the three aspects of the CS Panel with opening vertical ultimate bearing capacity of influence. Three other group model is the analysis of the shear performance against, were considered the axial compression ratio, the hole width and height of the hole outside CS Panel with opening shear capacity influence.Conclusion: With the same effective load area of CS Panel with opening no hole than even the beam in the tension zone without reinforcement of open hole CS Panel with opening smaller vertical bearing capacity. The mouth of the cave, the higher the vertical ultimate bearing capacity is smaller, Even the beam in the tension zone configuration level longitudinal reinforcement, CS Panel with opening vertical bearing capacity of the increases. CS Panel with opening of shear capacity as the axial compression ratio increases with the increase of the ductility of the axial compressive ratio increases with the decrease, when the axial compression ratio reaches 0.3, the damage form into a brittle failure. As the hole width or the mouth of the cave increase in altitude, the shear capacity of CS Panel with opening will be reduced.