Research On The Key Construction Step Construction Coercion Technology Of Piple Suspension Structure

Although the suspension bridge looks beautiful, the construction process is quite complicated compared to other bridges, involving many issues. The main components of suspension include:bridge towers, main cables, slings, stiffening girder and anchor pier, etc. So the construction process is the most complicated, including the empty cable of the construction process, pre-bias and push the saddle, the main beam lifting, lofting cable clip, wind cable tensioning key. Construction of the extent of these links directly with all Bridge and linear, stress-related main tower, or even determine whether the final design requirements, complete the construction goal.Therefore, the coercion of suspension bridge's construction process is also extremely important. Based on a practical engineering of a suspension bridge East Gas Transmission Pipeline Project as background, through the establishment of the finite element model to simulate the construction process, gather data in the construction process and analysis its key construction process, including the cable clamp Lofting, pushing the main saddle and pipeline construction and other key construction step control and research. And through the engineering solution of practical problems arise, Obtain main following conclusions:(1) On the main saddle pushing the process in-depth analysis of the construction site of the actual situation and new problems arise, pushing the main saddle program is optimized to facilitate the on-site construction at the same time ensure that the displacement and the main tower specification allows the stress in the range of available classes;(2) Pipeline construction process may lead to security problems of structural units, the software simulation and calculation based on the pipeline during the pipeline construction concerns the possibility of overturning, bearing, and alignment, and other important security issues, issues that may arise for practical project proposals to ensure the course of construction site safety, but also help monitor the work completed.