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BRIDGE BEAM REINFORCEMENT METHOD AND DEVICE, FOR PREVENTING CRACK AND CORRECTING DEFLECTION IN PC BEAM OF FLOOR SLAB
BRIDGE BEAM REINFORCEMENT METHOD AND DEVICE, FOR PREVENTING CRACK AND CORRECTING DEFLECTION IN PC BEAM OF FLOOR SLAB
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机译:防止楼板混凝土梁裂缝和纠偏的桥梁梁加固方法和装置
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摘要
PURPOSE: A bridge beam reinforcement method and a device are provided to prevent a crack by straightening and correcting deflection of PC(Precast) beams caused by long-term use of the PC beams and to prevent progress of the crack formed. CONSTITUTION: PC beams(3,4) are arranged to the bottom of a floor slab put on between piers(1,2) of a bridge to support and reinforce the floor slab. A bridge beam reinforcement method prevents a crack of the PC beams by pulling and straightening both ends of a steel strand(7) fixed to the PC beams and prevents progress of the crack formed. The bridge beam reinforcement method comprises steps of connecting adjoining PC beams by the steel strand; simultaneously pulling and tensing both ends of the steel strand situated to the center of the PC beams by cylinders(8); and fixing the ends of the tensed steel strand to the tensed positions to make the deflection of PC beams corrected.
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