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STRUCTURE FOR PREVENTING COLLAPSE OF TRUSS BRIDGE
PROBLEM TO BE SOLVED: To provide a structure for preventing a collapse of a truss bridge, which is used to prevent the collapse starting from damage to a main member of an upper structure of the truss bridge during a megalo-earthquake.SOLUTION: A structure for preventing a collapse of a truss bridge is characterized as follows: an upper structure comprising a deck slab 1 and a truss skeleton 2 is arranged on a top surface of a lower structure 3 via a bearing 4 that is a connection part between both the structures; cables 5 are installed on both sides in a width direction, respectively; the cable on each side is run throughout its length through a cable guide 7 installed in a lower part of each panel point of a lower chord 6 of a truss; and starting and terminal ends of the cable are fixed to the lower structure.
【課題】極大地震時においてトラス橋上部構造の主部材損傷を起点とした崩壊を防止するためのトラス橋の崩壊防止構造を提供することを目的とする。【解決手段】床版1とトラスの骨組み2からなる上部構造を下部構造3の上面に前記両構造の連結部である支承4を介して配置し、幅員方向の両サイドにはケーブル5を設置し、各サイドの当該ケーブルは、前記トラスの下弦材6の各格点下部に設置したケーブルガイド7に通して全長に渡って張り巡らせ、当該ケーブルの始端と終端を当該下部構造に固定させることを特徴とするトラス橋の崩壊防止構造。【選択図】図1
STRUCTURE FOR PREVENTING COLLAPSE OF TRUSS BRIDGE
PROBLEM TO BE SOLVED: To provide a structure for preventing a collapse of a truss bridge, which is used to prevent the collapse starting from damage to a main member of an upper structure of the truss bridge during a megalo-earthquake.SOLUTION: A structure for preventing a collapse of a truss bridge is characterized as follows: an upper structure comprising a deck slab 1 and a truss skeleton 2 is arranged on a top surface of a lower structure 3 via a bearing 4 that is a connection part between both the structures; cables 5 are installed on both sides in a width direction, respectively; the cable on each side is run throughout its length through a cable guide 7 installed in a lower part of each panel point of a lower chord 6 of a truss; and starting and terminal ends of the cable are fixed to the lower structure.
【課題】極大地震時においてトラス橋上部構造の主部材損傷を起点とした崩壊を防止するためのトラス橋の崩壊防止構造を提供することを目的とする。【解決手段】床版1とトラスの骨組み2からなる上部構造を下部構造3の上面に前記両構造の連結部である支承4を介して配置し、幅員方向の両サイドにはケーブル5を設置し、各サイドの当該ケーブルは、前記トラスの下弦材6の各格点下部に設置したケーブルガイド7に通して全長に渡って張り巡らせ、当該ケーブルの始端と終端を当該下部構造に固定させることを特徴とするトラス橋の崩壊防止構造。【選択図】図1
STRUCTURE FOR PREVENTING COLLAPSE OF TRUSS BRIDGE
トラス橋の崩壊防止構造
GOTO YOSHIAKI (Autor:in)
22.10.2015
Patent
Elektronische Ressource
Japanisch
IPC:
E01D
BRIDGES
,
Brücken
Comments on collapse of steel truss Vierendeel highway bridge at Hasselt
Engineering Index Backfile | 1938
|Comments on collapse of steel truss Vierendeel highway bridge at Hasselt
Engineering Index Backfile | 1938
|