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Steel-steel concrete fully prefabricated assembling structure

A reinforced concrete and prefabricated assembly technology, applied in building construction, construction, etc., can solve the problems of limiting the application scope of the structural system, not conducive to popularization and application, etc., and achieve the effect of easy construction quality control, easy construction, and small cross-section.

Inactive Publication Date: 2004-12-15
KUNMING UNIV OF SCI & TECH
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  • Description
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Problems solved by technology

"This greatly limits the scope of application of the structural system, which is not conducive to its popularization and application in high-intensity areas of building anti-seismic fortification
This regulation does not take into account the buildings with seismic fortification intensity of 9 degrees;

Method used

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  • Steel-steel concrete fully prefabricated assembling structure
  • Steel-steel concrete fully prefabricated assembling structure
  • Steel-steel concrete fully prefabricated assembling structure

Examples

Experimental program
Comparison scheme
Effect test

example 3

[0050] Example 3 Demolition of H-shaped steel columns and prefabricated steel-reinforced concrete steel-reinforced concrete prefabricated structures:

[0051] (1) Set up temporary support on the structure to be demolished;

[0052] (2) Use the end unloading method to eliminate the prestress of the prestressed steel bars in sequence, and use a concrete cutter to cut the prestressed steel bars in sections at the joints on the bottom surface and the top surface of the floor;

[0053] (3) Due to the loss of prestress, the floor, side beams and pads are separated at the joints, and they are hoisted back to the ground with lifting equipment;

[0054] (4) Clean up the residual mortar on the exterior of columns, floor slabs, side beams and pads and in the reserved holes, and put them together for later use;

[0055] (5) The demolition work starts from the top floor and proceeds downward layer by layer.

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Abstract

The fully prefabricated assembled steel-steel concrete structure includes two kinds of assembling forms. The first one is fully prefabricated assembled steel column-steel concrete structure, and its prefabricated steel column consists of H-shaped steel column, reinforcing concrete ribs, supporting steel plate and prestress-shearing force friction nodes with shear resisting strips. The second one is fully prefabricated assembled prefabricated steel pipe-concrete column-steel concrete structure, and the prefabricated steel pipe-concrete column consists of steel pipe with square cross section, micro expanding high strength concrete cast inside the steel pipe and shear resisting strips attached to the outer wall of the steel pipe to form preshearing force-friction type nodes. The present invention has raised antiseismic performance, area utilization, construction efficiency, fireproof performance, low cost and small member size, and is suitable for various buildings.

Description

[0001] 1. Fields: [0002] The invention relates to an industrialized structural system of steel-reinforced concrete fully prefabricated assembly structure, belonging to the technical field of construction engineering. 2. Background technology: [0003] The reinforced concrete overall prestressed assembled slab-column structure is a frame structure based on industrialized and standardized production. This structural system originated from the former Yugoslavia and was introduced to my country after the Tangshan Earthquake in 1977. However, my country did not obtain the proprietary technology for specific engineering design and construction from the former Yugoslavia, but carried out systematic development and research independently. The results were awarded the third prize of the National Science and Technology Progress Award in 1985 and the second prize of the National Science and Technology Progress Award in 1987. The research results of our country have been applied in about...

Claims

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Application Information

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IPC IPC(8): E04B1/24E04B1/343
Inventor 柏文峰翟辉
Owner KUNMING UNIV OF SCI & TECH
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