Unlock instant, AI-driven research and patent intelligence for your innovation.

Prestressed steel strand reinforced concrete beam structure

A technology of concrete beams and steel strands, applied in structural elements, building components, building reinforcements, etc., can solve the problems of insufficient bearing capacity of concrete beams, and achieve the effect of good structural performance and safe and reliable operation.

Inactive Publication Date: 2020-09-18
叶香竹
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a prestressed steel strand reinforced concrete beam structure to solve the problem of insufficient bearing capacity of the concrete beam

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Prestressed steel strand reinforced concrete beam structure
  • Prestressed steel strand reinforced concrete beam structure
  • Prestressed steel strand reinforced concrete beam structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In this embodiment, a steel beam 1 is set below the concrete beam 6. The steel beam 1 adopts channel steel. The main reinforcement of the concrete beam 6 is welded with the steel beam 1. There are two middle fulcrum steel wire ropes 2, and each middle fulcrum steel wire rope 2 is respectively located on both sides of the concrete beam. The two corners of the bottom of the steel beam 1 are respectively provided with pre-piercing holes. The position of the pre-piercing holes along the span direction is the mid-span position of the concrete beam 6. 28mm, the diameter of the middle fulcrum steel wire rope 2 is 25mm, the middle fulcrum steel wire rope 2 passes through the pre-punctured hole and the reserved hole of the concrete floor 7 and is fixed on the steel anchor hoop 4, the diameter of the reserved hole of the concrete floor 7 is 28mm, and the basket bolt 5 is arranged inside the steel wire rope. The position is above the concrete floor 7, and the steel anchor hoop 4 co...

Embodiment 2

[0051] A steel beam 1 is set under the concrete beam 6, the steel beam 1 adopts channel steel, the main reinforcement of the concrete beam 6 is welded with the steel beam 1, and the mid-span position of the concrete beam 6 is provided with a middle fulcrum steel strand 9, and the middle fulcrum steel strand 9 is located in the concrete The middle part of the beam 6 section, the middle part of the concrete beam 6 section is provided with a pre-piercing hole, the diameter of the pre-piercing hole is 35 mm, the diameter of the steel strand 9 of the middle fulcrum is 32 mm, and the steel strand 9 of the middle fulcrum passes through the pre-piercing hole and the reserved hole of the concrete floor 7 and is fixed on the steel The anchor hoop 4, the diameter of the hole reserved in the concrete floor 7 is 28 mm, and the steel anchor hoop 4 connected with the steel strand 9 at the middle fulcrum is set at a position 600 mm above the concrete floor 7. In order to ensure the connection b...

Embodiment 3

[0062] A steel beam 1 is set under the concrete beam 6, and the steel beam 1 adopts channel steel, and the main reinforcement of the concrete beam 6 is welded with the steel beam 1. The fulcrum prestressed strut 11 is located in the middle of the section of the concrete beam 6, the middle of the section of the steel beam 1 is provided with a support hole, the support hole is inserted into the tee joint, and a rubber pad with a thickness of 10mm is set between the support hole and the tee joint. The rod 11 has a diameter of 35mm, and a horizontal strut 13 is arranged between the left middle fulcrum prestressed strut 11 and the right middle fulcrum prestressed strut 11 . The steel anchor hoop 4 connected with the lower end of the middle fulcrum prestressed strut 11 is set at a position 600mm below the concrete floor, the steel anchor hoop 4 is arranged around the brick wall 8, the cross-sectional shape of the steel anchor hoop 4 is square, and the steel plate forming the steel an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a prestressed steel strand reinforced concrete beam structure which is characterized in that a steel beam is arranged below a concrete beam, the steel beam is a steel channel,a main bar of the concrete beam is welded to the steel beam, a central bearing point steel strand is arranged in a midspan position of the concrete beam, the central bearing point steel strand is located in the middle of the section of the concrete beam, a steel anchored hoop connected to the central bearing point steel strand is arranged in a position 600-700 mm above a concrete floorslab, the concrete beam is provided with side bearing point steel strands in a 1 / 4 position and a 3 / 4 position along a span direction, the side bearing point steel strands penetrating a pre-penetrated hole and areserved hole of the concrete floorslab are fixed to the steel anchored hoop, and the steel anchored hoop connected to the side bearing point steel strands is arranged in a position 300-400 mm above the concrete floorslab.

Description

technical field [0001] The invention relates to a prestressed steel strand reinforced concrete beam structure, which is suitable for the construction field. Background technique [0002] When the bearing capacity of concrete beams is not enough, the traditional method is to use steel beams at the bottom of the concrete beams for reinforcement. The deformation is inconsistent, and it is difficult for the steel beam and the concrete floor to bear the load together. Tests have shown that when the concrete beam reaches the edge of failure, the bearing capacity of the steel beam often does not reach 50%, and the bearing capacity of the steel beam is limited. Contents of the invention [0003] The invention provides a prestressed steel strand reinforced concrete beam structure, which solves the problem of insufficient bearing capacity of the concrete beam. [0004] In order to improve the bearing capacity of the steel beam in the stress process, the concrete under the concrete...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02E04C5/08
CPCE04C5/08E04G23/0218
Inventor 叶香竹
Owner 叶香竹