Research On The Style Of Concrete Self-Anchored Suspension Bridge

In rescent years ,concrete self-anchored suspension bridge is welcomed by bridge engineers in china because of its attractive appearence.But there are less research data on the concrete self-anchored suspension system. In this paper,I make a systematic study on the static characteristics,dynamic characteristics and earthquake effects of long span concrete self-anchored suspension bridge ,taking Wusong bridge of Jilin city as the main line .The main work and achievements are as follows:1 Based on the finite element theory, in completed bridge state, analyze structure effects of long span concrete self-anchored suspension bridge when it is under the action of the dead load ,the living load ,temperature effect and support settlement.2 Analyze the effects of geometrically nonlinear on the living load analysis of concrete self-anchored suspension bridge. Secondly, by comparing different constructure systems with different construction parameters, analyze its effects on the static characteristic of long span concrete self-anchored suspension bridge .3 By using finite element analysis method, study effects of main span's rise-span ratio ,anchors settings,changes in elastic modulus of the main cable, the area of section of the main girder and the vertical bending rigidity on the dynamic characteristics of concrete self-anchored suspension bridge .4 Combination of earthquake code, analyze structure effects of concrete self-anchored suspension bridge under the action of earthquake load by using response spectrum method and time history method.On this basis, it is benefit to do some theoretical exploration to improve the shock resistance of concrete self-anchored suspension bridge .