SUSPENDED LOAD MOVING APPARATUS, REMOVAL METHOD OF EXISTING BRIDGE, AND INSTALLING METHOD OF BRIDGE MEMBER

• Main Authors: ANDO SOICHIRO, SHIROMIZU AKIO, HAYATA TOMOHIRO, HAMANO MASAAKI, UCHIUMI KAZUHITO
• Format: Patent
• Language: English; Japanese
• Published: 04.02.2021
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

To provide a suspended load moving apparatus capable of relocating a removal member, which is lifted at the end in the cross direction, to the vicinity of the center of a bridge face (in a direction perpendicular to a bridge-axis) without installing a crane outside a bridge, and a method of removing an existing bridge using the same.SOLUTION: A suspended load moving apparatus of the present invention comprises a horizontal expanding means, a suspending rope, and mobile fixing means. The horizontal expanding means is means for expanding a horizontal span between a first pulley and a second pulley, and the mobile fixing means is configured to include a support base and a moving body horizontally moving on the support base, and a first tip of the suspending rope is attached to the moving body of the mobile fixing means. When the horizontal expanding means reduces the horizontal span, the moving body moves to the side closer to the center of the cross section, and the suspended load held by a suspending tool also moves to the side closer to the center of the cross section.SELECTED DRAWING: Figure 2 【課題】本願発明の課題は、橋梁外にクレーンを設置することなく、しかも横断方向端部で吊り上げた撤去部材を橋面上の中央（橋軸直角方向）付近に移設することができる吊り荷移動装置と、これを用いた既設橋梁の撤去方法を提供することにある。【解決手段】本願発明の吊り荷移動装置は、水平伸縮手段と吊りロープ、移動式固定手段を備えたものである。このうち水平伸縮手段は、第１滑車と第２滑車との水平支間を伸縮させる手段であり、移動式固定手段は支持台とこの支持台上を水平移動する移動体を含んで構成され、吊りロープの第１先端は移動式固定手段の移動体に取り付けられる。そして水平伸縮手段が水平支間を縮めると、移動体が横断面中心側に移動し、吊り冶具に把持された吊り荷も横断面中心側に移動する。【選択図】図２