VEHICLE AND METHOD FOR REPLACING BRIDGE GIRDER

• Main Authors: KOJIMA HIROSHI, YAMADA TADANOBU, NAKAMURA HIROFUMI
• Format: Patent
• Language: English; Japanese
• Published: 22.06.2015
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

PROBLEM TO BE SOLVED: To provide a vehicle capable of replacing a bridge girder for bridges of urban expressways and others where use of the spaces above and below the road are significantly limited, allowing replacement safely and with a small work yard, while limiting the spaces used above and below the road.SOLUTION: A bridge girder replacement vehicle 1 comprises a pair of vehicle sections 2A and 2B spaced greater than the longitudinal dimension of an existing girder M1 to be replaced, and a suspension section 3 that connects the pair of vehicle sections 2A and 2B. The suspension section 3 has a crane device 60 for hoisting the existing girder M1. Each of the vehicle sections 2A and 2B comprises a vehicle body 10 mounted with a power source 14, a plurality of traveling devices 20 for traveling on the bridge girder, a sending-out jack 30 for sending out, in the longitudinal direction, a temporary bridge girder 4 that is longer than the longitudinal dimension of the existing girder M1, and a crawler 40 that travels on the temporary girder 4. 【課題】都市高速道路等のような上下空間に大きな制約がある橋梁に対して、使用する上下空間を抑えつつ、安全に且つ狭い作業ヤードで架け替えを行うことができる橋桁架替車両を提供すること。【解決手段】橋桁架替車両１は、架け替え対象の既設桁Ｍ１の長手方向寸法より長く離間して配置された一対の車両部２Ａ，２Ｂと、これら一対の車両部２Ａ，２Ｂを連結する懸架部３を備える。懸架部３は、既設桁Ｍ１を吊り上げるクレーン装置６０を備える。各車両部２Ａ，２Ｂは、動力源１４を搭載する車体１０と、橋梁上を走行するための複数の走行装置２０と、既設桁Ｍ１の長手方向寸法より長い仮橋桁４を長手方向に送り出す送り出しジャッキ３０と、仮橋桁４の上を走行するクローラ４０とを備える。【選択図】 図１