The Application Of The Three Preferred Models In The Comparison Of Steel Reinforcement Schemes

Steel structure building is more and more widely used in the construction market at home and abroad.There are many problems in the processing,design,construction and use of corresponding steel structure buildings.More and more steel structure buildings need to be reinforced.In order to achieve the purpose of economic and benefit win-win,it is more and more necessary to optimize the reinforcement scheme of steel structure.In this paper,through the comparative analysis of three different optimization methods in the application of steel structure reinforcement scheme optimization,the selection method suitable for steel structure reinforcement scheme with small building scale is selected.Based on the theory of steel structure reinforcement,combined with the characteristics of steel structure reinforcement,the feasible steel structure reinforcement scheme is formulated,and the optimization model is established by using different optimization methods to optimize the steel structure reinforcement design scheme,and the optimization method is analyzed and compared to select the optimal model suitable for the steel structure reinforcement scheme It can provide some reference for the optimization of fixation scheme.The main contents of this paper are as follows:(1)Firstly,the main factors affecting steel structure reinforcement are selected by expert investigation method,and the evaluation index system of steel structure reinforcement scheme is established by using these factors.(2)In this paper,three kinds of steel structure reinforcement models are established by comparing with Delphi method.(3)Thirdly,according to the actual situation of the project and the commonly used reinforcement methods of steel structure,three different steel structure reinforcement schemes are designed by using structural analysis software: concrete filled steel tube reinforcement scheme,encased reinforced concrete reinforcement scheme and additional support reinforcement scheme The structural design software models and calculates the various reinforcement schemes,and finally determines that the three reinforcement schemes can meet the requirements of the code and the owner's requirements.(4)Finally,combined with the engineering example,the steel structure reinforcement scheme is optimized by using the above optimization models,and the practical and simple optimization model suitable for the engineering practice is selected through comparative analysis.Through the use of three optimization models to select the optimal structural reinforcement scheme;through the comparative analysis of the three optimization models,the optimization model of value engineering theory is easier to operate and master than the other two optimization models,especially for similar steel structure reinforcement projects with small scale and simple reinforcement demands,which is more convenient for the scheme reviewers to operate and serve as other similar projects The optimization of the project scheme provides some reference.The analysis and research results show that the final steel structure reinforcement scheme optimized by value engineering theory is consistent with the reinforcement scheme optimized by other optimization models,but the value engineering optimization model is simpler and easier to operate than other optimization models.Therefore,the application of value engineering theory in the reinforcement scheme optimization of similar scale projects has certain reference value.