Arch rib construction method

A construction method and arch rib technology, applied in arch bridges, erection/assembly bridges, bridge forms, etc., can solve the problems of large engineering volume and high technical requirements

Inactive Publication Date: 2021-04-27
CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The embodiment of the present application provides a construction method for arch ribs to solve the problems in the related art that the construction of arch ribs

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Embodiment Construction

[0043] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0044] see Figure 1-Figure 4 As shown, the embodiment of the present application provides a construction method for an arch rib. The arch rib 1 includes a first half arch 10 and a second half arch 11 completed on an assembled support, and a closing section 12 between the two half arches butted against each other. ; The construction of...

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Abstract

The invention relates to the technical field of bridge construction, in particular to an arch rib construction method which comprises the following steps that a support is erected on a main beam, a first half arch and a second half arch are subjected to low-position assembly on the support to form a half arch, and the near-shore ends of the two half arches are hinged to arch feet at the two ends of the main beam through temporary rotating hinge devices; the first half arch and the second half arch are lifted to the set height at the far shore end, and a closure gap is formed; a closure section is lifted to the closure gap from the main beam; and the first half arch and the second half arch are fixedly connected with the arch feet to form arch ribs. The arch ribs are assembled through a low-position assembling support, the height of a gantry crane can be reduced, the assembling speed is high, and the operation precision is high; the single lifting mechanism is arranged in the midspan, the number of the lifting tower frame is one, the number of the closure gap is one, the arch rib can be rapidly lifted and accurately positioned, investment of extra lifting equipment is reduced, and the construction efficiency of an arch rib structure which is large in span, high in rise and complex in structure can be effectively improved.

Description

technical field [0001] The present application relates to the technical field of bridge construction, in particular to a construction method of an arch rib. Background technique [0002] With the rapid development of my country's infrastructure construction, the requirements for the construction of bridges are getting higher and higher. Arch bridges have become architectural structures due to their unique technical advantages such as large spanning capacity, high bearing capacity, economical cost, low maintenance and repair costs, and beautiful appearance. It is the bridge type with the longest history and strong competitiveness. It can be applied to road or railway bridges with large, medium and small spans across the canyon. It occupies an important position in bridge construction and has a long-lasting prosperity. It has become a continuously developing bridge form. one. [0003] In related technologies, there are four commonly used construction methods for arch ribs as fo...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D4/00
CPCE01D21/00E01D4/00
Inventor 耿豪胡杰邹冠张小川唐勇朱云萍李方峰许基厚毛伟琦涂满明姚发海张文斌万慧许君辉张平
Owner CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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