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Gate-type crane semiarch integral-hoisting steel-pipe arch process

A technology of integral hoisting and steel tube arch, applied in arch bridges, bridge forms, erection/assembly of bridges, etc., can solve the problems of small construction span, limited hoisting capacity, and large internal stress in the arch.

Inactive Publication Date: 2006-10-25
CHINA RAILWAY FIRST GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Swivel construction with balance weight is only suitable for single-hole bridges; excessive balance weight is uneconomical; construction span is small (span is not greater than 160m), and swivel construction without balance weight is only suitable for single-hole bridges; only suitable for geological V-shaped river bed construction with good conditions; complex anchoring system; long construction period for cable hoisting; large investment in construction equipment; a huge anchor spindle system is required; poor construction safety; limited hoisting capacity; Larger; Difficult to remove

Method used

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  • Gate-type crane semiarch integral-hoisting steel-pipe arch process

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Experimental program
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Embodiment Construction

[0027] Overall construction layout and hoisting equipment

[0028] 1 Overall construction layout

[0029] The overall hoisting of the half-arch steel pipe arch by the gantry crane divides each arch rib into two hoisting units, and two gantry cranes are used for lifting each 1 / 2 arch. The fixed gantry crane is used as 1 / 2 arch mid-span lifting equipment, and the movable gantry crane is used as 1 / 2 arch arch foot lifting equipment.

[0030] 2 hoisting equipment

[0031] 2.1 Fixed gantry crane

[0032] The fixed gantry crane consists of three parts: gantry crane, pile cap foundation and cable wind rope.

[0033] ①. Gantry crane

[0034] The total height of the gantry crane is determined according to the height of the steel pipe arch and the lifting space, which is generally the height of the vault + 10 meters of lifting space (including the height of the spreader). The width of the gantry crane is determined according to the width of the bridge, generally the bridge width + ...

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Abstract

The invention relates to erecting construction of a steel pipe concrete arch bridge, especially a door crane-used half-arch integral steel pipe arch hoisting process, dividing each arch rib into two hoisted units, where each 1 / 2 arch is hoisted by two door cranes, where a fixed door crane serves as an arch span hoister and an active door crane serves as an arch foot hoister. And the invention is applied to bottom, middle and top bearing arch bridges constructed by bracket-free process. And the span of the steel pipe arch installed by the invention can reach above 300 meters, and the weight of the installed steel pipe can reach above 2000 tons. And it does not influence navigation, able to applied to single- or multiple- span construction; the hoisting safety is higher; and the shape of the arch axis is good; it needs no huge anchoring system and applied to various arch bridges.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and relates to the erection construction of a steel pipe concrete arch bridge, in particular to a process for integrally hoisting a steel pipe arch with a half-arch by a gantry crane. Background technique [0002] One of the most important procedures in the construction of concrete-filled steel tube arch bridges is the installation of arch ribs. The installation methods include: hoisting with cables without brackets; hoisting with cables with few brackets; ; Assembled on the bracket; [0003] Briefly introduce the more commonly used jack cable-stayed buckle-hanging suspension method and swivel construction method. The cable-stayed buckle-hanging installation of the jack is to control the hoisting elevation and adjust the axial deformation of the arch rib when the concrete in the pipe is poured by adjusting the cable force of the cable-stayed cable used to buckle and hang the steel pi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D4/00E01D101/24E01D101/30
Inventor 孙永刚李世清张金灵郝良秋李宏涛
Owner CHINA RAILWAY FIRST GRP CO LTD
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