Effect Of Deformation And Internal Force Of Inclined Column Bridge The Uneven Settlement Of Foundation

Since modern times, with the constant breakthroughs in materials science, the bridge structure and the scale also in the continuous development and bridge engineering research hot concentrated in the realization of larger span bridge, and Bridge stiffness in the study did not have a great breakthrough. In practical engineering, in order to meet the requirements of some bridge stiffness, it is often required to take a lot of measures to increase the cost and limit the span.China’s high-speed railway construction is still in rapid development, high-speed rail on the bridge’s lateral stiffness, vertical stiffness and torsional stiffness of a very high demand. In order to meet the need, my tutor proposed a new concept of bridge-inclined column bridge. Through changing the load transfer mode, to achieve "beam become a column", a substantial increase in the bridge structure stiffness and high stiffness under the spanning ability, and effectively reduce the project cost.The inclined column bridge bridge is a new structure form, there are still many problems need to be studied.This paper focuses on the analysis of inclined column concrete bridge cable force adjustment, internal force and deformation characteristics, deformation and internal force of the uneven settlement of foundation effects and other issues, to lay the foundation for the future development of the theory of inclined column bridge.The analysis mainly to bridge professional software MIDAS Civil to rely on were simulation analysis.The following are the main conclusions of this paper:(1)The inclined column bridge has a very high stiffness and good mechanical performance.By adjusting the cable force, the deformation and internal force can be controlled to a small value.It can be applied to large span bridges and solve the short board of it.(2) The V-type inclined column structure connection is more rigid than the hinge structure stiffness.The deformation and internal force are smaller after the completion of the bridge.In the practical engineering, it is advisable to adopt the rigid connection mode under the good geological condition.(3)The inclined column bridge under non-uniform settlement influence is large, it will increase the internal force of the bridge deck deformation and dangerous section of the. But the settlement deformation with regulatory requirements, internal force value is still higher than that of the general type of small because of the advantages of the structure. After the uneven settlement of foundation, the V-type inclined column structure is hinged, and the deformation and internal force are smaller than that of rigid connection. So in the practical engineering, it is advisable to adopt the articulated form in complex geological conditions.(4)Compared between the various inclined column bridge types,the deck type inclined column bridge get the biggest structure rigidity and the maximum internal force of foundation uneven settlement is the lowest. The deformation of the half through inclined column bridge get the lowest affected by the uneven settlement.(5)The deformation,internal forces and the influence of the uneven settlement of the foundation of the two assembly inclined column bridge and the triple assembly inclined column bridge are similar.The multiple V-type inclined column structures have a good cooperation.