A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Reverse construction method for large-span cable-stayed bridge tower area truss girder in mountainous area
The invention relates to a mountainous area large-span cable-stayed bridge tower area truss girder reverse construction method which comprises the following steps: firstly, mounting a bracket on a lower cross beam of a cable bent tower, then hoisting the cross beam with light weight on the bracket by using a tower crane, mounting the cross beam in place by sliding, and finishing the mounting of a bridge deck crane in advance by using the cross beam as a bridge deck crane assembly platform. And hoisting a heavier longitudinal beam by using a deck crane to finish the installation of the truss girder in the tower area. The method can effectively solve the problem that the truss girder longitudinal beam in the tower area cannot be hoisted when no large hoisting equipment exists in the mountainous area.
本发明涉及一种山区大跨径斜拉桥塔区桁架梁逆作法施工方法，首先在索塔下横梁安装托架，然后利用塔吊将重量较轻的横梁吊装到托架上，并通过滑移安装到位，利用横梁作为桥面吊机拼装平台，提前完成桥面吊机的安装，再利用桥面吊机吊装重量较重的纵梁，完成塔区桁架梁安装。本发明可有效解决山区无大型起吊设备时塔区桁架梁纵梁无法吊装的问题。
Reverse construction method for large-span cable-stayed bridge tower area truss girder in mountainous area
The invention relates to a mountainous area large-span cable-stayed bridge tower area truss girder reverse construction method which comprises the following steps: firstly, mounting a bracket on a lower cross beam of a cable bent tower, then hoisting the cross beam with light weight on the bracket by using a tower crane, mounting the cross beam in place by sliding, and finishing the mounting of a bridge deck crane in advance by using the cross beam as a bridge deck crane assembly platform. And hoisting a heavier longitudinal beam by using a deck crane to finish the installation of the truss girder in the tower area. The method can effectively solve the problem that the truss girder longitudinal beam in the tower area cannot be hoisted when no large hoisting equipment exists in the mountainous area.
本发明涉及一种山区大跨径斜拉桥塔区桁架梁逆作法施工方法，首先在索塔下横梁安装托架，然后利用塔吊将重量较轻的横梁吊装到托架上，并通过滑移安装到位，利用横梁作为桥面吊机拼装平台，提前完成桥面吊机的安装，再利用桥面吊机吊装重量较重的纵梁，完成塔区桁架梁安装。本发明可有效解决山区无大型起吊设备时塔区桁架梁纵梁无法吊装的问题。
Reverse construction method for large-span cable-stayed bridge tower area truss girder in mountainous area
一种山区大跨径斜拉桥塔区桁架梁逆作法施工方法
YANG YUANHAI (author) / WANG QUANQING (author) / SONG BING (author) / XU MINSHENG (author)
2023-12-12
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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