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Selection of expansion joint of bridge

author: Jianfeng Engineering from: 原创 date: 2017/7/7 9:00:00 hit: 15227 ℃
Tips: Selection of expansion joint of bridgeLarge size selected expansion joints of the selected size and ...

Selection of expansion joint of bridge

Large size selected expansion joints of the selected size and service life, should be considered in the design of rich enough. When the telescopic margin bridge displacement direction and the center line of the orthogonal expansion joints, expansion joints selection specification is relatively easy, but the direction and displacement of bridge expansion joint center oblique, must be decomposed into parallel and perpendicular to the center line of the two vectors, the expansion joint specification depends on two vector one. And vector parallel seam: Delta Lp= and delta L.cos beta; vector joint vertical: Delta Lr= Delta Lr.sin beta type: said the total deformation of bridge displacement; displacement direction and the direction of the joint payAngle to 135 degrees Lr =45 Eve joy is the selection of expansion joint specification, deformation of delta Lp is generally composed of rubber sealing strip moving old wrong level, without too much influence on the expansion joint.


  

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