Prestressed special-shaped trough plate

A special-shaped groove and prestressing technology, applied in building materials, building components, buildings, etc., can solve the problems of affecting the integrity of pouring, reducing the manufacturing efficiency of components, cracking of concrete panels, etc., to reduce the number of prefabricated components and improve the bending resistance. , the effect of increasing the bending stiffness

Pending Publication Date: 2019-12-31
宁波优造建筑科技有限公司
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Problems solved by technology

[0002] Prestressed double T slabs have the characteristics of large span and good bearing capacity, but there are problems in the treatment of slab joints and cracking of concrete slabs under the action of negative bending moments during the tensioning process, so it is difficult to popularize in engineering applications
The prestressed double T-slabs in the existing public technology cannot use the long-line method to manufacture the prestressed double T-slabs, which reduces the work efficiency of the component manufacturing, and at the same time, the m

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  • Prestressed special-shaped trough plate
  • Prestressed special-shaped trough plate
  • Prestressed special-shaped trough plate

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Embodiment Construction

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0026] see Figure 1 to Figure 4 , in the embodiment of a special-shaped slab provided in the present invention, it includes a special-shaped concrete slab body 1 and a prestressed steel strand 2 embedded in the special-shaped concrete slab body as the main reinforcement, and the special-shaped concrete slab body 1 It includes a rib beam 11 and a panel 12, the rib beam 11 and the panel 12 are integrally cast, the bottom of the rib beam 11 has an enlarged sect...

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Abstract

The invention provides a prestressed special-shaped trough plate. The prestressed special-shaped trough plate comprises a special-shaped concrete slab body and prestressed steel strands buried in thespecial-shaped concrete slab body and taken as main reinforcements. The prestressed special-shaped trough plate is characterized in that the special-shaped concrete slab body comprises a face plate and ribbed beams, the face plate and the ribbed beams are integrated into a whole by pouring, an expanded section flange is arranged at the bottom of each ribbed beam, and longitudinal placing notches are formed in the two sides of the face plate. With the adoption of the prestressed special-shaped trough plate provided with the expanded section flanges at the bottoms of the ribbed beams, the bending resistance of the component is greatly improved, the bearing capacity is improved under the condition of the fixed height of the trough plate, the height of the trough plate is reduced under the condition of the same live load, and meanwhile, the invert arch cracking of the component is effectively controlled under the joint action of the special-shaped concrete slab body and the prestressed steel strands.

Description

technical field [0001] The invention relates to a building prefabricated component, in particular to a reinforced concrete prefabricated slab which is prestressed by a pretensioning method and used in buildings. Background technique [0002] Prestressed double T slabs have the characteristics of large span and good bearing capacity, but there are problems in the treatment of the slab joints and the cracking of the concrete slab under the negative bending moment during the tensioning process, so it is difficult to popularize in engineering applications. The prestressed double T-slabs in the existing public technology cannot use the long-line method to manufacture the prestressed double T-slabs, which reduces the work efficiency of the component manufacturing, and at the same time, the mold has poor versatility, which increases the cost, and the bottom of the rib beam does not adopt the enlarged cross-section flange. Special-shaped ribs, under the same bending moment, the heig...

Claims

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Application Information

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IPC IPC(8): E04C2/06E04C2/30E04C2/38
CPCE04C2/06E04C2/30E04C2/38
Inventor 杨峰耿俊迪
Owner 宁波优造建筑科技有限公司
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