Large span, quadrate structure of house cover prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell

A reinforced concrete and large-span technology, applied in roofs, building components, building structures, etc., can solve the problem that thin shells cannot meet the structural strength and stability requirements, and it is difficult to adapt to large-span flat reticulated shell roof structures, concrete and steel bars It can achieve the effects of excellent fire performance, saving formwork, and reducing the amount of concrete and steel bars.

Pending Publication Date: 2007-05-09
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD +1
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  • Description
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Problems solved by technology

[0002] The cast-in-place reinforced concrete thin-shell structure began to be applied to the flat reticulated shell roof structure in the 1950s and 1960s, but its general span is between 15m and 30m. When the building plane size is square and the span increases, the thin shell cannot To meet the strength and stability requirements of the structure, it is necessary to adopt an orthogonal reinforced concrete ribbed hyperbolic flat shell structure
This structure is composed of thin plates and rectangular solid beams, which can meet the strength and stability requirements of the structure, but the structure is too heavy to meet the requirements of the long-span flat reticulated shell roof structure with a span between 36m and 60m, and this structure The amount of concrete and steel bars is large

Method used

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  • Large span, quadrate structure of house cover prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell
  • Large span, quadrate structure of house cover prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell
  • Large span, quadrate structure of house cover prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell

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Embodiment Construction

[0016] Embodiment of the present invention: as shown in Fig. 3 and Fig. 4, it is composed of a shell plate 1 and an edge member 2, and the edge member 2 can adopt a general reinforced concrete truss, a vierendeel truss, a lower chord prestressed vierendeel truss or a general The truss can form a four-point support form, and can also be a peripheral column, and the edge is a reinforced concrete curved beam to form a peripheral support form. The shell plate 1 is formed by two-way bending of the reinforced concrete hollow interlayer plate 3 with a square plane according to a circular curve, and its peripheral form is bow-shaped. The plane structure of the reinforced concrete hollow sandwich panel 3 is shown in Figure 1, and its cross-sectional structure is shown in Figure 2. It is composed of an upper rib grid 4 and a lower rib grid 5, and each upper rib grid 4 is composed of 4 strips The ribbed prefabricated panels 6 are spliced ​​orthogonally in two directions to form a grid. F...

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Abstract

The present invention discloses a kind of large span square-shaped plane reinforced concrete open-web sandwich doubly-curved flat mesh-shell roof structure. It is composed of shell plate and edge member. Said shell plate is made up by using square-shaped plane reinforced concrete open-web sandwich plate through a bending process according to circular curve bidirectional equal-curvalure. As compared with existent technology the span of the reinforced concrete thin shell structure can be enlarged to 36 m-60 m and its self-weight can be reduced by 30%-50%.

Description

Technical field: [0001] The invention relates to a flat reticulated shell roof structure, which is a large-span (36m≤L≤60m) square planar reinforced concrete orthogonally placed and equal curvature hollow interlayer hyperbolic flat reticulated shell roof structure. Background technique: [0002] The cast-in-place reinforced concrete thin-shell structure began to be applied to the flat reticulated shell roof structure in the 1950s and 1960s, but its general span is between 15m and 30m. When the building plane size is square and the span increases, the thin shell cannot To meet the strength and stability requirements of the structure, it is necessary to adopt an orthogonal reinforced concrete ribbed hyperbolic flat shell structure. This structure is composed of thin plates and rectangular solid beams, which can meet the strength and stability requirements of the structure, but the structure is too heavy to meet the requirements of the long-span flat reticulated shell roof stru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B7/10E04B1/342
Inventor 马克俭刘毅郑涛莫炜周英卢亚琴黄首赟
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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