Bailey placa suport marc

Quan a single span bridge is erected, the horizontal distance entre piles at resting angles on both sides should generally be less than the span of the bridge. The soil on ambdós costats of the bridge seat should be solid. When the soil pressure cannot meet the design requisits, the foundation under the bridge seat plate should be expanded or reforced. The lower pin of the Bailey plate support frame can be inserted% 2c i a diamant jack is col·locat entre el dos marcs. El acer passador és connectat a el diamant jack through the movable buckle of the frame.

By turning the jack screw, the diamond jack gradually closes from its original opening position, and the Bailey piece slowly pulls the staggered adjacent pin holes in the upper part of the upper truss and aligns with the rear latch. When the bridge is landing, the landing speed of each jack should be consistent, so as to to evidence the weight of the bridge concentring on the jack, causing the damage de el jack o truss acord i altre greu accidents.