Research On The Choosing Location And Designing Of The Scene Prefabricated Beam Plant In Constructing Bridge

The scene prefabricated beam produces is an important part of constructing the large bridge, its rationality directly affect the quality and the time of the whole bridge project. At present In our country, under years of experiences, the engineering builders commonly design the prefabricated beam plant from the qualitative point of view, led to the not quite reasonable design. In view of this, with the combination of domestic and international experience in engineering practice, this paper analyses the relevant factors of prefabricated beam plant's sitting and design on system, concludes and sums up the rules of the sitting and design of the prefabricated beam plant, in hopes of changing the tradition extension construction management way which heavy the technique and light the management, and promoting the further improvement of construction organization management level.After summing up the actuality of research on the choosing location and designing of the prefabricated beam plant in the scene of bridge construction at home and abroad, the paper makes all kinds of the prefabricated beam plants compare each other and analyse, sums up the influencing factors of the scene prefabricated beam plant and arranges their orders by the important degree. Discussing the application conditions of the basic methods of the designing and arranging of the scene prefabricated beam plant, giving a calculate method of the parameters of designing of the scene prefabricated beam plant, analysing systemly the influencing factors of the designing of the scene prefabricated beam plant, building the index system of the evaluation of the design scheme of the prefabricated beam plant. Based on summing up the laws of the choosing location and designing of the prefabricated beam plant, the paper researches on the basis of the scene prefabricated beam plant of Chang An bridge over the iron, evaluating the design schemes of the scene prefabricated beam plant of Chang An bridge over the railroad by AHP and fuzzy integrative evaluation, in order to forcefully support to decision-making.