Construction method of large-span box variable cross-section reinforcement concrete arch

A technology of reinforced concrete and construction method, which is applied in the direction of arch structure, building component, dome roof structure, etc., to achieve the effect of improving project quality, reasonable structure and reducing construction difficulty

Inactive Publication Date: 2008-12-17
THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU +1
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide a construction method for a large-span box-shaped variable-section reinforced concrete arch, to solve the technical problems in the construction of a large-span hollow reinforced concrete arch

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  • Construction method of large-span box variable cross-section reinforcement concrete arch
  • Construction method of large-span box variable cross-section reinforcement concrete arch
  • Construction method of large-span box variable cross-section reinforcement concrete arch

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Embodiment Construction

[0031] Embodiment sees Fig. 1~ image 3 As shown, Fig. 1 is a schematic structural diagram of this embodiment, and Fig. 2 is a perspective schematic diagram of this embodiment, referring to Fig. 1 and Fig. 2, this embodiment is composed of two symmetrical arches, and the arches are connected by trusses. The arch body is a box-shaped variable-section concrete structure. see image 3 , which is a cross-sectional view of the installation of the arch formwork in this embodiment. The arch formwork is composed of an outer formwork bottom plate 1, an outer formwork top plate 2, an outer formwork side plate 3, an inner formwork bottom plate 4, an inner formwork top plate 5, an inner formwork side plate 6 and an inner formwork splayed plate 7. The main keel is provided close to the side formwork of the arch body, and the main keel is respectively close to the outside of the side plate of the outer formwork and the inside of the side plate of the inner formwork; the sub-keel is provided...

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Abstract

The invention relates to a large-span box-shaped variable-section reinforced concrete arch construction method, comprising the steps as follows: after the foundation construction is completed, an arch springing bearing platform is formed by concrete pouring on the foundation; subsequently, an arch body supporting frame foundation construction is carried out; on the foundation of the arch body supporting frame, the arch body supporting frames are symmetrically arranged between two arch springings; on the arch body supporting frame, arch body external formwork bottom plates are symmetrically arranged from two ends of the arch springings to the center of the arch body at the same time; the bottom reinforcement of the arch body is binded on the upper surface of the external formwork bottom plate; subsequently, the arch body formworks are installed; the concrete is poured by sections from the two ends to the middle of the arch simultaneously; finally, the concrete used for sealing the arch is poured; when the formworks are removed, the formworks are removed symmetrically from the center to the two ends of the arch springing simultaneously; finally, the concrete curing of the arch body is carried out. The construction method of the invention solves the construction technical problem of large-span reinforced concrete hollow variable-section arch.

Description

(1) Technical field [0001] The invention relates to a construction method of a reinforced concrete arch. (2) Background technology [0002] In actual engineering, the large-span arched variable-section beam structure is mainly used in bridge structures; the long-span arched variable-section beam structure is almost blank in gymnasium buildings and large-scale convention and exhibition center public buildings, and if there is an arched structure in traditional buildings Generally, steel structures are used, the main reason is that the construction of long-span reinforced concrete arches is too difficult, the construction cost is high, and the quality is high. However, for some arched public buildings with special requirements, such as external decoration, the natural effect of fair-faced concrete is required. , then have to adopt reinforced concrete structure. There is no domestic experience for reference in the specific construction technology and construction process of th...

Claims

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Application Information

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IPC IPC(8): E04B1/32E04B1/342
Inventor 施锦飞张公义倪金华单采杰杨发兵谭文成闵学军曾纪根陈小茹罗琼英李慧钟燕
Owner THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU
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