In-situ cast-in-place construction method for pre-tensioned pre-stressed arch-bar barn roof

A construction method and prestressing technology, applied to roofs, floors, building components, etc., can solve problems such as difficult construction, difficult quality assurance, and complicated procedures, and achieve the effect of ensuring construction quality, simple construction, and easy control of construction quality

Inactive Publication Date: 2010-09-15
NANTONG HUARONG CONSTR GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing construction method of arch plate granary roof has complicated

Method used

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  • In-situ cast-in-place construction method for pre-tensioned pre-stressed arch-bar barn roof
  • In-situ cast-in-place construction method for pre-tensioned pre-stressed arch-bar barn roof
  • In-situ cast-in-place construction method for pre-tensioned pre-stressed arch-bar barn roof

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0024] An in-situ cast-in-situ construction method of pre-tensioned pre-stressed arch granary roof includes the following steps:

[0025] (1) Prefabricated arched roof truss partitions outside the site and construction of the concrete floor in the warehouse, and then the wall 9 masonry and ring beam construction. When the middle ring beam 1 is poured, the φ14 cable-stayed steel bar 2 and the top brace are pre-embedded 3 Welding, using the top ring beam 4 also serves as a prestressed steel bar tension stand, the ring beam concrete strength is C40, and mixed with early strength agent (using JM series or other conventional early strength agent), the mixing amount is 1.5% of the cement amount; The inner stirrups of the top ring beam are densified to φ8@100, and ∠50×5 angle steel 5 is pre-embedded in the upper corner of the outer side of the top ring beam; when pouring the top ring beam, 6 φ22 screws 8 are pre-embedded according to the hole position on the anchor plate 7 , And set a 9...

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Abstract

The invention discloses an in-situ cast-in-place construction method for a pre-tensioned pre-stressed arch-bar barn roof, which comprises the steps of: prefabricating an arch bar roof partition board off site, constructing a concrete floor in a one-story barn chamber; building walls and constructing ring beams; setting up shelf supports; constructing templates of an arch-plate roof truss; laying and tensing steel bars; adjusting an unbalanced force generated during tension by using a crown stay bar; pouring concrete on an arch bar, removing a die, maintaining the roof, stretching the roof and the like. The method has the advantages of simple and convenient construction, easy construction quality control and guaranteed construction quality.

Description

Technical field: [0001] The invention relates to an in-situ cast-in-place construction method for a pretensioned prestressed arch slab granary roof. Background technique: [0002] The existing method for constructing the granary roof with arched plates has complex procedures, great difficulty in construction, and difficulty in guaranteeing the quality. Invention content: [0003] The object of the present invention is to provide an in-situ cast-in-place construction method for the pretensioned prestressed arch slab granary roof with simple construction and easy quality control. [0004] Technical solution of the present invention is: [0005] A method for in-situ cast-in-place construction of a pre-tensioned prestressed arch slab granary roof is characterized in that it includes the following steps: [0006] (1) Prefabricate the arch slab roof truss partition outside the site and carry out the concrete floor construction in the bungalow warehouse, and then carry out the ...

Claims

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Application Information

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IPC IPC(8): E04B5/32E04G21/12E04B7/00E04H7/26
Inventor 张进荣刘树均张进前陈正益
Owner NANTONG HUARONG CONSTR GRP CO LTD
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