A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rapid installation method for large-span temporary steel structure bridge
The invention discloses a rapid installation method for a large-span temporary steel structure bridge. The method comprises the steps that A a first span of a left bank adopts an truck crane, a lower chord, a cross beam, a web member, an upper chord and a bridge deck are hoisted and installed on a backfill platform according to related operation requirements of the crane, and steel truss girders of the spans are sequentially installed and completed; B the second span of the left bank is assembled through a steel carrying pole anchoring method cantilever, and the section is assembled through the cantilever of the 50t truck crane; C a cable-stayed buckling method is adopted for the middle span, and the section is assembled by using the cantilever of the 50t truck crane; D a span close to the tail end of a right bank is installed in the mode that a roller dragging method longitudinally moves a beam and the truck crane falls the beam. The method is suitable for deep and steep canyons or large rivers in narrow sites; the installation can be quickly completed in a short time; the field is mostly mechanically operated, so that the safety risk of manual operation is reduced; required equipment is relatively convenient, and construction organization is facilitated; the installation cost is economical and feasible; and members can be reused after being used.
本发明公开了一种大跨度临时钢结构桥梁快速安装方法，包括有以下步骤：A.左岸第一跨采用汽车起重机，按照起重机相关操作要求在回填平台上吊装安装下弦杆、横梁、腹杆、上弦杆及桥面板，依次安装完成该跨钢桁架梁；B.左岸第二跨采用钢扁担锚拉法悬臂拼装，用50t汽车起重机悬臂拼装该段；C.中间跨采用斜拉扣挂法，用50t汽车起重机悬臂拼装该段；D.靠近右岸最末端一跨采用滚筒拖拉法纵移梁、汽车起重机落梁方式安装。该方法适用于狭窄场地的深陡峡谷或大江大河上；可在较短时间内快速安装完成；现场大多为机械化作业，降低人工作业安全风险；所需设备较为便利，便于施工组织；安装费用经济可行；构件使用完毕后可重复利用。
Rapid installation method for large-span temporary steel structure bridge
The invention discloses a rapid installation method for a large-span temporary steel structure bridge. The method comprises the steps that A a first span of a left bank adopts an truck crane, a lower chord, a cross beam, a web member, an upper chord and a bridge deck are hoisted and installed on a backfill platform according to related operation requirements of the crane, and steel truss girders of the spans are sequentially installed and completed; B the second span of the left bank is assembled through a steel carrying pole anchoring method cantilever, and the section is assembled through the cantilever of the 50t truck crane; C a cable-stayed buckling method is adopted for the middle span, and the section is assembled by using the cantilever of the 50t truck crane; D a span close to the tail end of a right bank is installed in the mode that a roller dragging method longitudinally moves a beam and the truck crane falls the beam. The method is suitable for deep and steep canyons or large rivers in narrow sites; the installation can be quickly completed in a short time; the field is mostly mechanically operated, so that the safety risk of manual operation is reduced; required equipment is relatively convenient, and construction organization is facilitated; the installation cost is economical and feasible; and members can be reused after being used.
本发明公开了一种大跨度临时钢结构桥梁快速安装方法，包括有以下步骤：A.左岸第一跨采用汽车起重机，按照起重机相关操作要求在回填平台上吊装安装下弦杆、横梁、腹杆、上弦杆及桥面板，依次安装完成该跨钢桁架梁；B.左岸第二跨采用钢扁担锚拉法悬臂拼装，用50t汽车起重机悬臂拼装该段；C.中间跨采用斜拉扣挂法，用50t汽车起重机悬臂拼装该段；D.靠近右岸最末端一跨采用滚筒拖拉法纵移梁、汽车起重机落梁方式安装。该方法适用于狭窄场地的深陡峡谷或大江大河上；可在较短时间内快速安装完成；现场大多为机械化作业，降低人工作业安全风险；所需设备较为便利，便于施工组织；安装费用经济可行；构件使用完毕后可重复利用。
Rapid installation method for large-span temporary steel structure bridge
大跨度临时钢结构桥梁快速安装方法
YAN HENGBIN (author) / WU DONGLI (author) / MA JUNLIN (author) / CHEN YUQI (author) / WANG XUEXUN (author) / LI LEI (author) / ZHANG YAOHUA (author) / LIU ZHONG (author)
2021-10-19
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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