Optimal Design And Analyses Of Mechanical Properties For Aluminum Alloy Formwork

With the rapid development of China's economy,the concept of green,low-carbon and recycling development is deeply rooted in people's hearts.As a green,environmentally friendly,efficient and recycling building formwork,aluminum alloy formwork has attracted wide attention from all sectors of society.With the gradually applying of aluminium alloy formwork in China's building formwork market,some problems have emerged in the composite aluminium alloy formwork system: The non-standard proportion of aluminium alloy formwork is relatively high,and the aluminium alloy formwork manufactured between enterprises can not be used together.Aluminum alloy formwork is in the preliminary stage of development in China,It,such as reducing non-standard rate of aluminium alloy formwork,Improving the universality of aluminium alloy formwork produced by enterprises,has become an urgent new topic in the construction industry.In this paper,the optimization design of aluminium alloy formwork is studied from the aspects of optimizing the standard size of aluminium alloy formwork,matching rules and mechanical properties analysis.The main results are as follows.(1)The theoretical calculation and numerical simulation analysis of the aluminium alloy formwork optimized by standard size are carried out.The following conclusions are drawn: 1)The optimized aluminium alloy formwork is in the stage of elastic work undering construction load,and there is a large safety reserve space for its strength and stiffness;2)The theoretical simplified calculation results are basically consistent with the numerical simulation analysis results,which verifies the rationality of the theoretical simplified analysis and provides theoretical calculation reference for the mechanical properties analysis of aluminium alloy formwork;3)The slabs with longitudinal stiffeners behind them should be calculated according to continuous beams,and the two-way slabs with four fixed sides should be calculated when the transverse ribs are welded directly behind the slabs.In theoretical calculation,the simplified mechanical model should be reasonably selected.(4)The effects of various parameters on the mechanical properties of aluminum alloy formwork were studied by changing structural dimensions,such as panel thickness,wall thickness of transverse ribs thickness,height of side ribs and end ribs,thickness of side ribs and end ribsand.The following conclusions are drawn: 1)The height of side rib and end rib of aluminium alloy formwork has the greatest influence on the mechanical properties of aluminium formwork.The influence of panel thickness and wall thickness of transverse ribs thickness on the mechanical properties of aluminium alloy formwork is the smallest.;2)In the future mechanical calculation and design of aluminium alloy formwork,the mechanical properties of aluminium alloy formwork can be improved by changing the height and thickness of side ribs and end ribs;(5)Combining with practical engineering,the non-standard rate of the two schemes before optimization and after optimization is compared.The results show that the non-standard rate of the optimized scheme is reduced by 4%,and the turnover utilization rate of the aluminium alloy formwork is increased.