Study On Mechanical Calculation Model Of Aluminum Alloy Formwork And Its Engineering Application

The aluminum alloy formwork project is an application technology that is currently being actively promoted in China and has received a positive response from the entire industry.However,as a new technology,it is still in the stage of exploratory research and experimentation in China.Its mechanical properties have not been generally recognized,and the corresponding design and construction specifications are not yet perfect,which brings great uncertainty to the mechanical calculation of enterprises.Therefore,how to accurately determine the mechanical calculation model of the aluminum alloy template,reduce calculation errors,and improve design efficiency and accuracy have attracted widespread attention in the industry.In this study,the field construction data of L-? aluminum alloy formwork was compared with the two-sided simply supported and four-sided simply supported tests to determine the supporting boundary conditions of the aluminum formwork.On this basis,a new form of L-? aluminum alloy template is proposed,the overall maximum displacement and stress value of the template is significantly reduced,and the performance is better,which can be promoted and used in the aluminum alloy template market in the future.Based on the ABAQUS finite element analysis,compared with the field measured data,it is more reasonable to use a single block template with four-sided simply supported constraints to simulate the template group.At the same time,the numerical simulation of the static loading test of L-? and L-? aluminum alloys is carried out,and the finite element results are compared with the experimental measured data,thus verifying the feasibility of the finite element numerical simulation method adopted in this paper.Secondly,taking the L-? standard aluminum alloy template as the research object,the elastic support continuous beam design method is used,and the elasticity coefficient of the support is solved by referring to the neutron structure of structural mechanics,and compared with the results of the finite element,the method is verified feasibility.At the same time,combined with experimental research and regression analysis of finite element data,the numerical calculation formula of elastic coefficient is derived,which is used to simplify the calculation process in engineering practice,no additional finite element analysis is required,and the calculation accuracy and efficiency are improved.Finally,on the basis of previous studies,the theoretical calculation method of the L-? standard aluminum alloy formwork support system is further studied.Based on the principle of equality of the absolute maximum bending moments,a method for determining the equivalent uniform load of the formwork is given.The calculation table of the scale factor is compiled,and the reliability of the design method is verified by an example.This study provides a theoretical reference for the application of L-? aluminum formwork in actual engineering,which can be used by engineering designers for easy and quick engineering design.