Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Two-way curved arch bridge dismantling method
The invention discloses a two-way curved arch bridge dismantling method. The method comprises the following steps: 1) dismantling arch bridge structures except a main arch ring; 2) building a supporting structure below the main arch ring; 3) mounting support jacks between arch ribs and the supporting structure at intervals; (4) adjusting the jacking force of the two symmetrical supporting jacks, so that the axial pressure value of the arch crown section of the arch rib is smaller than or equal to a set balance target value; 5) segmenting two arch waves respectively positioned at two transversesides of the bridge; 6) punching a hole in the arch crown position of the arch rib, installing a pressure jack in the hole, and adjusting the jacking force of the pressure jack to be equal to the axial pressure value of the arch crown section of the arch rib; (7) segmenting two arch ribs located at the two transverse sides of the bridge respectively, (8) segmenting arch feet of the two arch ribslocated at the two transverse sides of the bridge respectively, and hoisting away the arch feet through hoisting equipment, (9) circulating the steps (5) to (8) to sequentially dismount all the arch ribs of the arch bridge, and (10) removing construction equipment and supporting structures to complete two-way arch bridge dismounting.
本发明公开了一种双曲拱桥拆除方法，包括以下步骤：1)拆除除主拱圈以外的拱桥结构；2)在主拱圈正下方搭建支撑结构；3)在拱肋与支撑结构之间间隔安装支撑千斤顶；4)调整对称的两个支撑千斤顶的顶推力，使拱肋拱顶截面的轴向压力值小于等于设定的平衡目标值；5)分割分别位于桥梁横向两侧的两个拱波；6)在拱肋的拱顶位置处凿孔，在孔内安装压力千斤顶，并调整压力千斤顶的顶推力等于拱肋拱顶截面的轴向压力值；7)分割分别位于桥梁横向两侧的两个拱肋；8)分割分别位于桥梁横向两侧的两个拱肋的拱脚，使用吊装设备吊离；9)循环步骤5)至步骤8)，依次拆除拱桥的所有拱肋；10)撤除施工设备及支撑结构，完成双曲拱桥的拆除作业。
Two-way curved arch bridge dismantling method
The invention discloses a two-way curved arch bridge dismantling method. The method comprises the following steps: 1) dismantling arch bridge structures except a main arch ring; 2) building a supporting structure below the main arch ring; 3) mounting support jacks between arch ribs and the supporting structure at intervals; (4) adjusting the jacking force of the two symmetrical supporting jacks, so that the axial pressure value of the arch crown section of the arch rib is smaller than or equal to a set balance target value; 5) segmenting two arch waves respectively positioned at two transversesides of the bridge; 6) punching a hole in the arch crown position of the arch rib, installing a pressure jack in the hole, and adjusting the jacking force of the pressure jack to be equal to the axial pressure value of the arch crown section of the arch rib; (7) segmenting two arch ribs located at the two transverse sides of the bridge respectively, (8) segmenting arch feet of the two arch ribslocated at the two transverse sides of the bridge respectively, and hoisting away the arch feet through hoisting equipment, (9) circulating the steps (5) to (8) to sequentially dismount all the arch ribs of the arch bridge, and (10) removing construction equipment and supporting structures to complete two-way arch bridge dismounting.
本发明公开了一种双曲拱桥拆除方法，包括以下步骤：1)拆除除主拱圈以外的拱桥结构；2)在主拱圈正下方搭建支撑结构；3)在拱肋与支撑结构之间间隔安装支撑千斤顶；4)调整对称的两个支撑千斤顶的顶推力，使拱肋拱顶截面的轴向压力值小于等于设定的平衡目标值；5)分割分别位于桥梁横向两侧的两个拱波；6)在拱肋的拱顶位置处凿孔，在孔内安装压力千斤顶，并调整压力千斤顶的顶推力等于拱肋拱顶截面的轴向压力值；7)分割分别位于桥梁横向两侧的两个拱肋；8)分割分别位于桥梁横向两侧的两个拱肋的拱脚，使用吊装设备吊离；9)循环步骤5)至步骤8)，依次拆除拱桥的所有拱肋；10)撤除施工设备及支撑结构，完成双曲拱桥的拆除作业。
Two-way curved arch bridge dismantling method
双曲拱桥拆除方法
GUO ZENGWEI (Autor:in) / CHENG HAO (Autor:in) / ZHOU SHUIXING (Autor:in)
28.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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