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Full-section incremental launching comprehensive construction method for UHPC steel-concrete composite beam

A technology of steel-concrete composite beam and construction method, applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as bridge deck cracking, reduce performance requirements, ensure normal completion, and improve overall construction quality.

Active Publication Date: 2021-11-19
NO 2 ENG CO LTD OF CCCC FIRST HIGHWAY ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the jacking construction process with bridge decks is likely to cause bridge deck cracks, so the construction method of full-section jacking of composite composite beams (stacking first and then jacking) is seldom used

Method used

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  • Full-section incremental launching comprehensive construction method for UHPC steel-concrete composite beam
  • Full-section incremental launching comprehensive construction method for UHPC steel-concrete composite beam
  • Full-section incremental launching comprehensive construction method for UHPC steel-concrete composite beam

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Embodiment Construction

[0035] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and Simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are used for descriptive purposes on...

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Abstract

The invention discloses a UHPC steel-concrete composite beam full-section incremental launching comprehensive construction method. The method comprises the following steps that 10, a manufacturing site, an assembling site, an assembling and overlapping area and a cast-in-place maintenance area are arranged; 20, in the manufacturing site, bridge deck slabs and steel edge box blocks are machined and pre-matched; 30, the steel edge box block bodies are continuously matched to manufacture the steel edge box in the assembling site; 40, in the assembling and overlapping area, cross beams, small longitudinal beams and the steel edge boxes are spliced to manufacture steel beams, and the bridge deck slabs and the steel beams are overlapped; 50, in the cast-in-place maintenance area, a bridge deck slab wet joint is poured and maintained; and 60, incremental launching construction is carried out on the bridge deck slabs in the round until the incremental launching construction of the whole main bridge is finished. According to the UHPC steel-concrete composite beam full-section incremental launching comprehensive construction method, steel-concrete composite beam full-section incremental launching construction is adopted, welding operation during front-field installation of the main beam is reduced, and the overall construction quality is improved.

Description

【Technical field】 [0001] The invention relates to the technical field of building construction, in particular to a comprehensive construction method for full-section jacking of UHPC steel-concrete composite beams. 【Background technique】 [0002] Due to the rapid increase of traffic volume in recent years, the bridge span and bridge deck width are on the rise. In order to meet the actual requirements, long-span steel-concrete composite girder cable-stayed bridges emerged as the times require. With its advantages of strong spanning ability, uniform material, strong integrity, light weight, high strength, good wind resistance, high degree of industrialization, and short construction period, steel-concrete composite girder cable-stayed bridges are more and more popular at home and abroad. Favored by bridge designers and construction units. [0003] Since the successful application of the jacking method in the Ager Bridge in Austria in 1959, it has developed rapidly in the histo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 王东伟刘大成王志强蔺鑫磊孙广浩兰胜强杨智勇刘晓东张之广
Owner NO 2 ENG CO LTD OF CCCC FIRST HIGHWAY ENG
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