Prestressed well lid

A technology of prestressed and prestressed steel strands, which can be used in water conservancy projects, artificial islands, underwater structures, etc., and can solve the problems of easy cracking and breaking, poor grip between steel bars and concrete, and poor bending and impact effects. Good and other problems, to achieve the effect of ensuring construction quality, ensuring bending resistance and impact strength, and improving service life

Inactive Publication Date: 2014-06-18
SILVERY DRAGON PRESTRESSED MATERIALS CO LTD
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

[0002] Most of the manhole covers in the prior art are reinforced concrete structures. This structure has the disadvantages of poor grip between steel bars and concrete, and the effect of anti-bending and impact force is not good. It is easy to crack and break after being used on the road for a period of time, which will affect the manhole cover. quality and service life

Method used

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  • Prestressed well lid

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Embodiment Construction

[0008] In order to further illustrate the content of the invention and the characteristics of the present invention, it is specifically described as follows in conjunction with the embodiments:

[0009] Such as figure 1 As shown, a prestressed manhole cover includes a manhole cover 1 and a prestressed steel strand 2, the manhole cover 1 is made of concrete, the manhole cover 1 wraps the prestressed steel strand 2, and the prestressed steel strand 2 are distributed in a cross network structure 3, and the prestressed steel strands 2 are scored prestressed steel strands.

[0010] The above descriptions are only preferred embodiments of the present invention, and do not limit the scope of the present invention. Various modifications and improvements made to the technical solution of the present invention by those skilled in the art should fall within the protection scope of the present invention.

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Abstract

The invention relates to a reinforced concrete structure, in particular to a prestressed well lid for a prestressed concrete member. The prestressed well lid comprises a well lid body and prestressed steel strands, the well lid body is made of concrete and wraps the prestressed steel strands, and the prestressed steel strands are distributed in a cross mesh structure and are indented prestressed steel strands. The prestressed well lid has the advantages that the bending resistance and the impact strength of the well lid are ensured, the service life of the well lid is prolonged, construction quality is ensured, and the well lid is effectively protected.

Description

technical field [0001] The invention relates to a reinforced concrete structure, in particular to a prestressed manhole cover used in a prestressed concrete member. Background technique [0002] Most of the manhole covers in the prior art are reinforced concrete structures. This structure has the disadvantages of poor grip between steel bars and concrete, and the effect of anti-bending and impact force is not good. It is easy to crack and break after being used on the road for a period of time, which will affect the manhole cover. quality and service life Contents of the invention [0003] The object of the present invention is to provide a prestressed manhole cover in order to overcome the deficiencies in the prior art, especially to improve the quality and service life of the manhole cover. [0004] The technical solution adopted in the present invention is, a prestressed manhole cover, including a manhole cover and a prestressed steel strand, the manhole cover is made ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/14
Inventor 谢铁桥艾铁岭谢辉宗谢崇虎
Owner SILVERY DRAGON PRESTRESSED MATERIALS CO LTD
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