MANUFACTURING METHOD OF EXPANSION JOINT FOR BRIDGE

• Main Authors: LEE, CHOON GOO, HYUN, JUNG HWAN
• Format: Patent
• Language: English; Korean
• Published: 30.12.2022
• Subjects: ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL; APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ASSEMBLY OF BRIDGES; CLADDING OR PLATING BY SOLDERING OR WELDING; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; FIXED CONSTRUCTIONS; GRINDING; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OR VIADUCTS; PERFORMING OPERATIONS; POLISHING; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SOLDERING OR UNSOLDERING; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING; WELDING; WORKING BY LASER BEAM

According to embodiments of the present invention, provide is a method for manufacturing an expansion joint device for a bridge, capable of preventing water leakage at an end portion and at the same time preventing a decrease in production efficiency and an increase in manufacturing cost. According to an embodiment disclosed in the present invention, the method for manufacturing an expansion joint device for a bridge may comprise: a step of forming an insertion hole on a top plate to insert a bolt fixing a pre-setting member for adjusting the distance with another top plate; welding the top of a side plate to a lower surface of the top plate so that the side plate and the top plate are perpendicular to each other; performing a blasting process on the surfaces of the welded top plate and side plate; flattening the processed top and side plates by fixing the processed top and side plates to a fixing jig and then hitting the top plate and the side plate by using a hydraulic actuator; painting the flattened top and side plates; and performing an assembly process by using the painted top and side plates. 본 문서에 개시되는 일 실시 예에 따른 교량용 신축 이음 장치의 제조 방법은 상판에 다른 상판과의 간격 조절을 위한 프리 세팅 부재를 고정시키는 볼트를 삽입하도록 삽입공을 형성하는 단계, 상판의 하면에 측판의 상단을 서로 수직하도록 용접하는 단계, 용접된 상판 및 측판의 표면에 블래스팅(blasting) 가공을 수행하는 단계, 가공된 상판 및 측판을 고정용 지그에 고정한 후 유압 액츄에이터를 이용하여 타격함으로써 가공된 상판 및 측판을 평탄화하는 단계, 평탄화된 상판 및 측판을 도장하는 단계, 및 도장된 상판 및 측판을 이용하여 조립 공정을 수행하는 단계를 포함할 수 있다.