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Ultra-large silo prestress tension process method

A process method and ultra-large technology, applied in the field of prestressed tensioning process, can solve problems such as slow progress and increased error, and achieve the effects of improving bearing capacity, crack resistance and structural rigidity

Pending Publication Date: 2020-08-07
MCC5 GROUP CORP SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the very large span of the silo, the length of the steel strand has reached about 60m, and the theoretical elongation of the steel strand is often greater than the maximum elongation of the jack, which requires two stages of tensioning, which not only slows the progress , and increased the error

Method used

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  • Ultra-large silo prestress tension process method
  • Ultra-large silo prestress tension process method

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Embodiment Construction

[0029] Embodiments of the present invention are described below through specific examples, and those skilled in the art can fully understand other advantages and technical effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific implementation modes, and various details in this specification can also be applied based on different viewpoints, and various modifications or changes can be made without departing from the general design idea of ​​the invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other. The following exemplary embodiments of the invention may be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. It should be understood that these embodiments are provided to make the disclosure of the present i...

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Abstract

The invention discloses an ultra-large silo prestress tension process method. The method comprises the following steps that a hole channel is formed in a buttress column of a silo; jack oil pressure gauge readings corresponding to the tension anchor control force, and the extension amount of each jack piston are solved; penetrating of a steel strand is carried out; a first buttress column 1, a third buttress column 3 and a fifth buttress column are subjected to graded tension through two jacks from top to bottom, and a second buttress column 2, a fourth buttress column 4 and a sixth buttress column 6 are subjected to graded tension through two jacks from bottom to top; hole channel grouting is carried out; pilasters are subjected to anchor sealing; and concrete is cured and end forms are removed.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a prestressed tensioning process. Background technique [0002] At present, with the rapid development of economic construction and industrial construction, large or super-large silos continue to rise from the ground. For example, a cement production line with a daily output of 10,000 tons requires super-large clinker silos with a height of about 40m. The inner diameter of the cylinder wall reaches about 50m, and the thickness of the cylinder wall reaches about 50cm. The silo is generally equipped with multiple buttresses. Due to the very large span of the silo, the length of the steel strand has reached about 60m, and the theoretical elongation of the steel strand is often greater than the maximum elongation of the jack, which requires two stages of tensioning, which not only slows the progress , and increases the error. [0003] Therefore, there is a great need for a new...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H7/20E04H7/26E04G21/12
CPCE04H7/20E04H7/26E04G21/12
Inventor 何宗孝
Owner MCC5 GROUP CORP SHANGHAI
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