The Research Of Reinforced Concrete Curvilinear Beam Bridge With No Abutment

Today ,with the level of science and technology in world of rapid development, the global level and bridge-building capacity has been increased, the development of our country's bridges is particularly rapid. In the world, the number of bridges in China have occupied the important position. Especially three decades, the bridge-building is going to a glorious period, accumulated rich experience in bridge design and construction. Bridges in accordance with its structure can be divided into beam bridges, steel bridges, cable-stayed bridge, suspension bridge and so on. Beam bridge which is the most common form. Girder bridge is a vertical load at the level of reaction force under the non-structure, simple structure, convenient construction and reinforced concrete girder bridge on the bearing capacity of foundations do not ask for much, no abutment of the reinforced concrete beam bridge along with do not ask for much of the foundation bearing capacity and low cost advantages, and novel structure, with good prospects for development.With a balanced emphasis on non-reinforced concrete abutment arch bridge curve is a new bridge. This bridge abutment will be replaced by the traditional balance of heavy wall components, both components of the balance weight retaining abutment, earth pressure balance, some level of balance between the level of thrust as well as the more special to the role of balance and the vertical control to adjust the role of a bridge arch pattern applies to the need to do rather than geographical arch with arch bridge to replace the type of pattern to make up for the people of visual short-comings, they changed the mechanical performance of the bridge.Non-reinforced concrete abutment of the bridge curve is a new research study at home and abroad and there is very few cases, there is great potential. Of course, there are many problems, this paper mainly through three non-reinforced concrete abutment of the bridge curves to analyze a typical case of non-reinforced concrete abutment bridge the scope of application, and its weight should be balanced conditions, the suitable the form of a cross-section; study of non-reinforced concrete abutment of the bridge curves of the linear curve and the most appropriate vector and bridge the high proportion of suitable long range. And analysis under the same conditions in the construction of non-reinforced concrete abutment of the bridge curve than other forms of savings by the cost of the bridge.