Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Self-anchored suspension bridge navigation hole crossing steel box girder construction method
The invention relates to a self-anchored suspension bridge navigation hole crossing steel box girder construction method, which belongs to the technical field of bridge construction, and comprises the following steps: S1, erecting a temporary support, and arranging an anti-collision pier near the temporary support of a navigation hole; s2, a pushing section steel box girder is erected by the floating crane in a segmented mode, and pushing of the pushing section of the steel box girder is conducted through a walking type pushing device; s3, mounting brackets at the two ends of the steel box girder section are hoisted; s4, a steel box girder section is hoisted by a floating crane from the girder transporting ship, the girder section is moved to the position above the position to be installed through a hinge anchor, and the floating crane lowers the girder section till the bottom of the girder is 20 cm higher than the top of the girder falling cushion block; s5, the three-way jack is jacked to make contact with the bottom of the bracket, connection between the hoisting steel box girder section and the hoisting tool is relieved, and the floating crane quits working; s6, the relative positions of seams between the beam sections are adjusted through a three-way jack, the seams are locked through a temporary locking device, welding seam construction between the beam sections is conducted, and the beam sections are welded into a whole; the method is particularly suitable for the construction of the self-anchored suspension bridge crossing the temporary navigation channel, and has practicability.
本发明涉及一种自锚式悬索桥跨通航孔钢箱梁施工方法，属于桥梁施工技术领域，包括以下步骤：S1、搭设临时支架，并在通航孔的临时支架附近设置防撞墩；S2、浮吊分段架设顶推段钢箱梁，利用步履式顶推器进行钢箱梁顶推段的顶推；S3、起吊钢箱梁段的两端安装牛腿；S4、利用浮吊自运梁船上起吊钢箱梁段，通过铰锚将梁段移至待安装位置上方，浮吊下放梁段至梁底高于落梁垫块顶部20cm；S5、三向千斤顶顶升至与牛腿底部接触，解除起吊钢箱梁段与吊具之间的连接，浮吊退出工作；S6、利用三向千斤顶调整梁段间接缝相对位置，用临时锁定装置锁定接缝，进行梁段间焊缝施工，使梁段焊接成整体；本发明特别适用于自锚式悬索桥跨越临时航道的施工，具有实用性。
Self-anchored suspension bridge navigation hole crossing steel box girder construction method
The invention relates to a self-anchored suspension bridge navigation hole crossing steel box girder construction method, which belongs to the technical field of bridge construction, and comprises the following steps: S1, erecting a temporary support, and arranging an anti-collision pier near the temporary support of a navigation hole; s2, a pushing section steel box girder is erected by the floating crane in a segmented mode, and pushing of the pushing section of the steel box girder is conducted through a walking type pushing device; s3, mounting brackets at the two ends of the steel box girder section are hoisted; s4, a steel box girder section is hoisted by a floating crane from the girder transporting ship, the girder section is moved to the position above the position to be installed through a hinge anchor, and the floating crane lowers the girder section till the bottom of the girder is 20 cm higher than the top of the girder falling cushion block; s5, the three-way jack is jacked to make contact with the bottom of the bracket, connection between the hoisting steel box girder section and the hoisting tool is relieved, and the floating crane quits working; s6, the relative positions of seams between the beam sections are adjusted through a three-way jack, the seams are locked through a temporary locking device, welding seam construction between the beam sections is conducted, and the beam sections are welded into a whole; the method is particularly suitable for the construction of the self-anchored suspension bridge crossing the temporary navigation channel, and has practicability.
本发明涉及一种自锚式悬索桥跨通航孔钢箱梁施工方法，属于桥梁施工技术领域，包括以下步骤：S1、搭设临时支架，并在通航孔的临时支架附近设置防撞墩；S2、浮吊分段架设顶推段钢箱梁，利用步履式顶推器进行钢箱梁顶推段的顶推；S3、起吊钢箱梁段的两端安装牛腿；S4、利用浮吊自运梁船上起吊钢箱梁段，通过铰锚将梁段移至待安装位置上方，浮吊下放梁段至梁底高于落梁垫块顶部20cm；S5、三向千斤顶顶升至与牛腿底部接触，解除起吊钢箱梁段与吊具之间的连接，浮吊退出工作；S6、利用三向千斤顶调整梁段间接缝相对位置，用临时锁定装置锁定接缝，进行梁段间焊缝施工，使梁段焊接成整体；本发明特别适用于自锚式悬索桥跨越临时航道的施工，具有实用性。
Self-anchored suspension bridge navigation hole crossing steel box girder construction method
一种自锚式悬索桥跨通航孔钢箱梁施工方法
ZHANG HAISHUN (Autor:in) / JIANG YINGBIAO (Autor:in) / REN YANLONG (Autor:in) / HUO YANLEI (Autor:in) / LI MINGZE (Autor:in) / ZHENG ZHICHAO (Autor:in) / LIU YINTAO (Autor:in) / ZHANG GUOQING (Autor:in) / ZHAO XUEMIN (Autor:in) / WANG RUNDONG (Autor:in)
09.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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