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Construction method of concrete beams with high torsional strength

The technology of a concrete beam and a construction method is applied in the field of construction engineering to achieve the effects of convenient positioning and connection, ensuring stability, and improving bending/compressive bearing capacity

Active Publication Date: 2018-12-11
广东省怡合建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no technical solution for how to improve the torsional bearing capacity in concrete structures in the prior art.

Method used

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  • Construction method of concrete beams with high torsional strength
  • Construction method of concrete beams with high torsional strength
  • Construction method of concrete beams with high torsional strength

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: as Figure 1-2 As shown, a prefabricated concrete beam or column is embedded with steel reinforced members in the concrete beam and column, and its manufacturing method includes:

[0025] First, prepare components: steel reinforced components, which include basic steel and four U-shaped channel steels 1-1, 1-2, 1-3, and 1-4; the basic steel uses I-beam, and the upper flange 2-1, the lower flange 2-2, and the web 3, the structure of the upper flange 2-1 and the lower flange 2-2 are the same;

[0026] Second, insert 4 U-shaped channel steels into the four corners of the upper flange and the lower flange of the foundation steel. Bolt holes are preset between the U-shaped channel steel and the flanges of the basic steel. The U-shaped channel steel and the foundation The bolt holes of the flange of the section steel are aligned, and the two are fixed by the bolt and nut assembly 1-5; a channel 4 for passing prestressed tendons is formed between the U-shaped ch...

Embodiment 2

[0030] Embodiment 2 is different from Embodiment 1 in that: the basic shape steel adopts "II" shape steel.

Embodiment 3

[0031] Embodiment 3: as image 3 As shown, a prefabricated concrete beam or column, the foundation steel is embedded in the beam or column, and its construction steps are as follows:

[0032] First, prepare components: shaped steel reinforced components, which include basic shaped steel and four U-shaped channel steels 1-1, 1-2, 1-3, 1-4; the basic shaped steel adopts I-shaped steel, and the upper flange 2- 1. Composed of lower flange 2-2 and web 3, the structure of upper flange 2-1 and lower flange 2-2 is the same; vertical Steel pipes 1-7, the two ends of the vertical steel pipe protrude from the flange, the height of the vertical steel pipe is greater than the thickness of the flange, and the vertical steel pipe is hollow; the distance between the vertical steel pipes is 15-50cm;

[0033] Second, insert 4 U-shaped channel steels into the four corners of the upper flange and the lower flange of the foundation steel. Bolt holes are preset between the U-shaped channel steel a...

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Abstract

Disclosed is a construction method of concrete beams with high torsional strength. The construction method includes: embedding steel reinforced members along the longitudinal direction of the concretebeams, wherein the steel reinforced members include basic steel and U-channel steel, the basic steel comprises a top flange, a lower flange and a web, and the U-channel steel is fixed on corners of the flanges of the basic steel and is arranged along the length of the basic steel; forming channels between the U-channel steel and the flanges, wherein prestressed tendons are arranged in the channels a penetratingly. With the method, the flexural capacity and torsional capacity can be improved simultaneously.

Description

technical field [0001] The patent of the invention belongs to the field of construction engineering, and specifically relates to a construction method of a concrete beam that improves the torsional bearing capacity. Background technique [0002] Application number "2016100206893" discloses a prestressed assembled frame joint structure and its construction method: I-beams are pre-embedded at the end of prefabricated reinforced concrete beams, and channels are provided in the flanges and / or webs of I-beams. , the channel is used for the embedding of unbonded prestressed tendons, and the surface of the I-beam is also provided with protrusions protruding from the concrete beam; the prefabricated concrete column is provided with a steel plate on the side opposite to the beam, and the steel plate is provided with a pass-through The second channel for bonding the prestressed tendons and the jack matched with the protrusions, the positions of the second channel and the first channel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B23/02
CPCB28B23/022E04C3/293E04C3/32E04C3/34E04G21/00
Inventor 不公告发明人
Owner 广东省怡合建设有限公司
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