A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONSTRUCTION METHOD OF SIMPLE TEMPORARY BRIDGE
PROBLEM TO BE SOLVED: To provide a construction method of a simple temporary bridge that significantly reduces a construction cost by using a general-purpose material, and eliminates an upward protrusion from an existing superstructure and thereby ensuring safety in crane work.SOLUTION: A construction method of a simple temporary bridge includes: a first step of using a projecting square girder 50 having a U-shaped planar form and a receiving girder material 30 provided with a plurality of pile guide cylinders, for having the projecting square girder 50 supported by the projecting square girder 30 of an existing superstructure and moved by sliding; a second step of fixing a base end side of the projecting square girder 50 on the existing superstructure; a third step of installing the other receiving girder material 30 afterwards on an undersurface in front of the projecting square girder 50 moved by sliding; a fourth step of erecting a support pile 20 using the pile guide cylinder 32 of the receiving girder material 30 installed afterwards; and a fifth step of installing a main girder 40 and laying a floor plate 41 between the receiving girder material 30 located at a front end of the existing superstructure and the receiving girder material 30 located in front of the existing superstructure. The first to the fifth steps are performed repeatedly for each span.SELECTED DRAWING: Figure 1
【課題】汎用資材を使用できて工費の大幅削減が可能であるとともに、既設上部工の上方へ向けた突出物をなくしてクレーン作業を安全に行える簡易仮橋の架設方法を提供すること。【解決手段】平面形状がコ字形の張出定規桁５０と、複数の杭ガイド筒を具備した受桁材３０とを使用し、既設上部工の張出定規桁３０に支持させて張出定規桁５０をスライド移動させる第１工程と、張出定規桁５０の基端側を既設上部工に固定する第２工程と、スライド移動させた張出定規桁５０の前部の下面へ別途の受桁材３０を後付けする第３工程と、後付けした受桁材３０の杭ガイド筒３２を利用して支持杭２０を立設する第４工程と、既設上部工の前端に位置する受桁材３０と既設上部工の前方に位置させた受桁材３０との間に主桁４０と床板４１を敷設する第５工程とを含み、第１工程〜第５工程をスパン単位で繰り返して行う。【選択図】図１
CONSTRUCTION METHOD OF SIMPLE TEMPORARY BRIDGE
PROBLEM TO BE SOLVED: To provide a construction method of a simple temporary bridge that significantly reduces a construction cost by using a general-purpose material, and eliminates an upward protrusion from an existing superstructure and thereby ensuring safety in crane work.SOLUTION: A construction method of a simple temporary bridge includes: a first step of using a projecting square girder 50 having a U-shaped planar form and a receiving girder material 30 provided with a plurality of pile guide cylinders, for having the projecting square girder 50 supported by the projecting square girder 30 of an existing superstructure and moved by sliding; a second step of fixing a base end side of the projecting square girder 50 on the existing superstructure; a third step of installing the other receiving girder material 30 afterwards on an undersurface in front of the projecting square girder 50 moved by sliding; a fourth step of erecting a support pile 20 using the pile guide cylinder 32 of the receiving girder material 30 installed afterwards; and a fifth step of installing a main girder 40 and laying a floor plate 41 between the receiving girder material 30 located at a front end of the existing superstructure and the receiving girder material 30 located in front of the existing superstructure. The first to the fifth steps are performed repeatedly for each span.SELECTED DRAWING: Figure 1
【課題】汎用資材を使用できて工費の大幅削減が可能であるとともに、既設上部工の上方へ向けた突出物をなくしてクレーン作業を安全に行える簡易仮橋の架設方法を提供すること。【解決手段】平面形状がコ字形の張出定規桁５０と、複数の杭ガイド筒を具備した受桁材３０とを使用し、既設上部工の張出定規桁３０に支持させて張出定規桁５０をスライド移動させる第１工程と、張出定規桁５０の基端側を既設上部工に固定する第２工程と、スライド移動させた張出定規桁５０の前部の下面へ別途の受桁材３０を後付けする第３工程と、後付けした受桁材３０の杭ガイド筒３２を利用して支持杭２０を立設する第４工程と、既設上部工の前端に位置する受桁材３０と既設上部工の前方に位置させた受桁材３０との間に主桁４０と床板４１を敷設する第５工程とを含み、第１工程〜第５工程をスパン単位で繰り返して行う。【選択図】図１
CONSTRUCTION METHOD OF SIMPLE TEMPORARY BRIDGE
簡易仮橋の架設方法
KUBOTSU NAOTO (author) / ISHIGURO MAKOTO (author)
2018-02-08
Patent
Electronic Resource
Japanese
TEMPORARY BRIDGE AND CONSTRUCTION METHOD OF TEMPORARY BRIDGE
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