The Analysis On Rational Completion State And Hanger Tension Procedure Of Self-Anchored Pedestrian Suspension Bridge

In recent years, with the rapid development of China’s bridge construction, self-anchored pedestrian suspension bridge with grand appearance and the graceful line become urban bridges in a competitive scheme, and also attracts more and more bridge designers. This dissertation proceeds the analysis on determining the rational completion state and hanger tension procedure for self-anchored pedestrian suspension bridge. Based on Xishan Park self-anchored pedestrian suspension bridge, main research contents are as follows:1. For establishing the Xishan Park pedestrian bridge model, verify ing the rationality of the stress of the bridge into the bridge state, and then analyzes the operation stage of the structure strain and deformation are reasonable, and analyzes the changes of structure parameters of strain and deformation of the influence on the bridge.2. The hanger of unstressed length error is analysed, when the unstressed length was adopted, the random error and system error were well controlled in the range of ±20 mm and±10mm.3. This paper develops three tension programs for Xishan Park pedestrian bridge and in the process of construction of hanger, cable, tower and beam deformation and stress through the simulation of the calculation. According to the simulation results of hanger tensioning process and scheme of safety, practicality and rationality of the comparison, determine the final sling tension program.4. On the basis of the selected tension program, formal analysis and unstressed control method were combined to the construction process, the linear and cable forces of the bridge are in the controllable range, and the error of the cable force is controlled within 3%, and the control effect is remarkable.