Construction Application Of The Hanging Bracket In Continuous Rigid Frame Bridge Edge Across Cast-in-site Segments

For a long time, the safety of the bridge bracket construction has been praised by thegreat attention. Especially in recent years, bridge bracket safety accident occurred constantly,increasingly drawn extensive attention of the whole society, one of the key reasons for themechanical properties of stent is lack of understanding, lead to design and constructiondisjointed, lack reasonable. Therefore, give more research on bridge bracket, to support safetyconstruction to provide the scientific theoretical basis and guidance, it is of great theoreticaland realistic significance.The main work of this paper is given as follows:First, select suitable hanging basket on the contrary. There are various forms bridgebrackets which used in Continuous rigid frame edge across cast-in-site segments of the bridgeconstruction, the Ma Ti Wan bridge is located in the western mountainous area, the mountainand valley is deep, the space is narrow, ordinary console support build-up inconvenience.After scheme selected, the hanging bracket used as a bridge bracket construction.Second, the characteristic and construction technology of the hanging bracket. Thehanging bracket is a simple and reasonable force, the use of good performance, convenientand economic construction of the temporary bridge structure, it is a relatively new bridgebracket. This paper analyzes the characteristics and the structure of the impending bracketconstruction technology based on the achievement of research in learning from other typesbridge.Third, design and check the hanging bracket. It belongs to the bracket temporary supportstructure, has its own design points and steps. This paper checks the strength, stability,connection and the anti-overturn reference to the design code.Fourth, use the finite element method to analysis the hanging bracket. Using the finiteelement software to build space model bracket, and to inquiry the stress, deformation andinternal force, stability, and other aspects, according to the results of analysis can guidebracket design and construction, to ensure the safe of the operation structure.This paper studies show that: the type of brackets as temporary structure in thecontinuous rigid frame construction cast-in-site segments of the various index all conform to the standard， in a safe state. This bracket structure application in western mountainous iseffective and has the great value to apply.