Heavy load e.g. bridge platform moving device, has actuation units on bridge piles, each unit including wedge and slider executing cyclic alternate movements during which slider raises and moves with platform in longitudinal direction

摘要

The device has actuation units (3) on bridge piles for installing platform. Each unit has a fixed support (10) and mutually superposed leveling wedge (18) and slider (21). The wedge and slider execute cyclic alternate movements under an action of jacks (30, 31). The slider rises with the platform, moves with the platform in a longitudinal direction and is lowered by resting the platform on the support during the cyclic movements.