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A platform for research: civil engineering, architecture and urbanism
ERECTION METHOD OF CABLE-STAYED BRIDGE, LIFTING MACHINE AND CABLE-STAYED BRIDGE
To reduce a work period in erection work of a cable-stayed bridge as compared to the conventional one.SOLUTION: An erection method of a cable-stayed bridge comprises: a main girder supporting step of giving a force with upward components in a vertical direction to main girders 106 and supporting the main girders by first cables 104 receiving an upward force from a main tower 102; a lifting machine arrangement step of arranging lifting machines 20 onto predetermined positions of the main girders 106; a tensile force introducing step of introducing a tensile force to second cables 30 connecting between tip side parts of the lifting machines 20 arranged to the predetermined positions and the main tower 102 so that the force with the upward components in a vertical direction is applied to the lifting machines 20; a lifting step of lifting main girder blocks 80 up to a predetermined height by using the lifting machines 20 after the tensile force introducing step; and a main girder blocks supporting step of giving the force with upward components in a vertical direction to the main girder blocks 80 and supporting the main girder blocks by third cables 104 receiving the upward force from the main tower 102 while joining the main girder blocks 80 to tip sides of the main girders 106.SELECTED DRAWING: Figure 1
【課題】斜張橋の架設工事において従来よりも工期を短縮する。【解決手段】主塔１０２から上向きの力を受ける第１のケーブル１０４で、鉛直方向上向きの成分を有する力を主桁１０６に与えて支持する主桁支持工程と、主桁１０６上の所定の位置に揚重機２０を配置する揚重機配置工程と、前記所定の位置に配置された揚重機２０の先端側部位と主塔１０２との間を連結する第２のケーブル３０に、鉛直方向上向きの成分を有する力が揚重機２０に加わるように張力を導入する張力導入工程と、前記張力導入工程後、主桁ブロック８０を揚重機２０で所定の高さまで吊り上げる吊り上げ工程と、主桁ブロック８０を主桁１０６の先端側に接合するとともに、主塔１０２から上向きの力を受ける第３のケーブル１０４で、鉛直方向上向きの成分を有する力を主桁ブロック８０に与えて支持する主桁ブロック支持工程と、を備える。【選択図】図１
ERECTION METHOD OF CABLE-STAYED BRIDGE, LIFTING MACHINE AND CABLE-STAYED BRIDGE
To reduce a work period in erection work of a cable-stayed bridge as compared to the conventional one.SOLUTION: An erection method of a cable-stayed bridge comprises: a main girder supporting step of giving a force with upward components in a vertical direction to main girders 106 and supporting the main girders by first cables 104 receiving an upward force from a main tower 102; a lifting machine arrangement step of arranging lifting machines 20 onto predetermined positions of the main girders 106; a tensile force introducing step of introducing a tensile force to second cables 30 connecting between tip side parts of the lifting machines 20 arranged to the predetermined positions and the main tower 102 so that the force with the upward components in a vertical direction is applied to the lifting machines 20; a lifting step of lifting main girder blocks 80 up to a predetermined height by using the lifting machines 20 after the tensile force introducing step; and a main girder blocks supporting step of giving the force with upward components in a vertical direction to the main girder blocks 80 and supporting the main girder blocks by third cables 104 receiving the upward force from the main tower 102 while joining the main girder blocks 80 to tip sides of the main girders 106.SELECTED DRAWING: Figure 1
【課題】斜張橋の架設工事において従来よりも工期を短縮する。【解決手段】主塔１０２から上向きの力を受ける第１のケーブル１０４で、鉛直方向上向きの成分を有する力を主桁１０６に与えて支持する主桁支持工程と、主桁１０６上の所定の位置に揚重機２０を配置する揚重機配置工程と、前記所定の位置に配置された揚重機２０の先端側部位と主塔１０２との間を連結する第２のケーブル３０に、鉛直方向上向きの成分を有する力が揚重機２０に加わるように張力を導入する張力導入工程と、前記張力導入工程後、主桁ブロック８０を揚重機２０で所定の高さまで吊り上げる吊り上げ工程と、主桁ブロック８０を主桁１０６の先端側に接合するとともに、主塔１０２から上向きの力を受ける第３のケーブル１０４で、鉛直方向上向きの成分を有する力を主桁ブロック８０に与えて支持する主桁ブロック支持工程と、を備える。【選択図】図１
ERECTION METHOD OF CABLE-STAYED BRIDGE, LIFTING MACHINE AND CABLE-STAYED BRIDGE
斜張橋の架設方法、揚重機および斜張橋
SAKURAI ATSUSHI (author) / TANAKA HIROAKI (author) / KAKIICHI TAKUMI (author) / OGAWA TAKAYO (author) / ONOO TAKASHI (author) / MURAKAMI KAZUYA (author) / HAKUKAWA SHINJI (author) / FUNAMIZU YOSUKE (author) / FUKUSHIMA MICHITO (author) / OGAWA YUSUKE (author)
2023-12-28
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
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