Study On The Substructure Rigid And The System Compatibility Of Frame-continuous Combination Bridge

At present, in our country there are more and more highway constructed in the mountainous area, but the highway request technology refering to the high elevation, the route mostly moves across the mountain ridge or the ditch. With the landform and the topographical condition limited, he bridge structural style with high pier and long span is extremely common, it is so necessary to do further analyzes and the research to the bridge pier rigidity and the structure system compatibility that bridge design are optimized.The bridge pier rigidity is key gredient of the control of Frame-continuous combines system bridge construction and structural design. Regarding to combination system with the limited construction tallness and the low pillar body ,to calculate pillar body rigidity of the bridge span structure is important content of analysis and design in an appropriate method .This article are based on the project of Youshui River bridge of the Xihan highway , introducing what will influence the bridge pier rigidity Frame-continuous combines the system bridge how the bridge pier rigidity are influenced, and has made the careful analysis to several primary factors and the structure system compatibility.This article studies the main contents: (1) Factors which influence Bridge pier rigidity and theoretical analysis about the factors; (2)Theoretical analysis about Pier foudation; (3) Taking several factor influencing pillars bodies rigidity of bridge pier tallness, longitudinal width single column of the double extremitypillar pier and spacebetween of the bridge pier pillar of the double extremity pillar and so on for example , to analyze the compatibility between the rigidity and the structral system; (4) Considering pile-earth-structure function , to analyze compatibility between foundation rigidity of Frame-continuous combines beam bridge and the structure system.