Analysis Of Local Stress At Anchorage Zone Of Self-Anchored Bridge

Whether on the construction or on the mechanics property aspect, the self-anchored suspension bridge differs a lot with the earth-anchored suspension bridge. In recent years, self-anchored suspension bridges are increasingly appreciated by engineers for their aesthetic look, low cost and high adaptability. Many self-anchored suspension bridges have been completed or are in construction in the world. Based on a single-tower self-anchored suspension bridge with 248m main span in Nanjing, the details of this paper are as follows:1. After collecting the correlative information about self-anchored suspension bridges, Summarize the development status and structure characteristics of self-anchored suspension bridges at home and abroad, Also, the typical anchorage structures inland and abroad and the research situation of anchorage zone at home and abroad are summarized.2. The analysis theories of suspension bridge (including elastic theory, deflection Theory, and the finite displacement theory) are summarized in the paper. This paper summarizes nonlinear analysis theories of self-anchored suspension bridge, and discusses several commonly nonlinear equation calculated methods.3. Based on a single-tower self-anchored suspension bridge in Nanjing, This paper utilizes ANSYS to build a finite element model of single-towered self-anchored suspension bridge. This paper analyzes its response under various loads (including the dead load, the live load, temperature load and foundation settlement). And then, find the maximum main cable force of the most adverse operating conditions.4. This paper utilizes ANSYS to analyze the anchorage zone of main cable, And then, study stress distribution and deformation of the anchorage zone. Though the investigation on local stresses in anchorage zone of main cable, we can find out the distribution of stress. All the conclusions can provide the reference for similar bridge design.