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Construction method of a multi-arch closed structure

A technology of closed structure and construction method, which is applied in the direction of arched structure, dome structure, building components, etc., to achieve the effects of less workers, shortened construction period, and favorable construction vibration and flowing water construction

Active Publication Date: 2020-12-11
BEIJING URBAN CONSTR GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a construction method of a multi-arch closed structure, which is used to solve the technical problems of the multi-arch closed structure concrete pouring in divisional construction and the pouring quality of the reinforced reinforcement area.

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  • Construction method of a multi-arch closed structure

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Embodiment Construction

[0031] This embodiment takes the construction section of an airport as an example. Its structure is a five-span arched closed frame structure. The arched structure includes an upper arched roof 1, vertical partition walls 3 connected to both ends of the arched roof 1 and The bottom plate 2 connected between the two partition walls 3, wherein the two outer sides of the overall multi-arch closed structure are side walls 4, the bottom plate reinforcement 6 poured on the bottom plate 2, the bottom plate 2 is connected with the partition wall 3 or the side wall 4 The stiffening rib steel bar 8 at the place and the connecting bar 9 at the junction of the arched top plate steel bar 5 and the partition wall 3 or side wall 4 are densely arranged; wherein, the thickness of the side wall 4 is 2.0m, the thickness of the partition wall 3 is 1.0m, and the roof The thickness is 3.0m, and the total length of the arch structure is 81.235m. A construction method of a multi-arch closed structure...

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Abstract

The invention discloses a construction method of a multi-arch-shaped closed structure. The multi-arch-shaped closed structure comprises at least two side-by-side arch-shaped structures and further comprises a density increasing area. Main construction steps are as follows: area dividing and bin dividing are performed according to the position of a designed transverse construction seam; a top crossing plate is selected as reference, manufacturing into a flat-plate-shaped test piece to perform a field test is performed, the concrete matching ratio is adjusted and optimized, test matching is performed, and the matching ratio of pouring concrete is obtained; and self-compact concrete is selected for concrete in the density increasing area, the concrete matching ratio is adjusted and optimized,and test matching is performed. According to the construction method, due to application of a recurrence assembly line construction method, the construction period can be greatly shortened; due to layered pouring on an arch-shaped top plate and a bottom plate in the pouring process, construction vibrating and assembly line construction are facilitated; and the self-compact concrete is adopted inthe density increasing area, selection is performed through a matching ratio scheme, an effect of compactness can be achieved when concrete pouring is performed in the rebar density increasing area, and the strength needed by the structure is achieved.

Description

technical field [0001] The invention relates to the technical field of arch structure construction, in particular to a construction method of a multi-arch closed structure. Background technique [0002] Since entering the 21st century, my country's economy has been in a stage of rapid development, the scope of cities has gradually expanded, the transportation network has become diversified, and the comprehensive transportation hub has been developed and applied for the transportation system in the new era. A comprehensive transportation hub is a comprehensive structure that integrates several spatial structures such as airplanes, railways, highways, subways, and light rails to form a comprehensive structure that operates efficiently, is closely connected, and interacts. Its structural system is complex and diverse. [0003] Among them, the arched structure is one of the commonly used structures in construction engineering. It is a curved or broken line component that mainly ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/32E04G21/00
CPCE04B1/32E04G21/00
Inventor 李鹏卢喜成毛杰谢会雪李红涛张凯赵书东于越马锋锋肖平芳
Owner BEIJING URBAN CONSTR GROUP
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