Threaded steel bar tensioning and anchoring device and construction method thereof

A threaded steel bar and anchoring device technology, which is applied in the processing of building materials, construction, building reinforcements, etc., can solve the problems of stress concentration, difficult construction, high cost, etc., and achieve reasonable overall force, low construction conditions and low cost. low effect

Pending Publication Date: 2021-11-19
中冶南方城市建设工程技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This traditional prestressed anchoring method requires the use of anchor heads and the arrangement of steel bars under the anchor, which has the phenomenon of stress concentration, high cost and difficult construction

Method used

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  • Threaded steel bar tensioning and anchoring device and construction method thereof
  • Threaded steel bar tensioning and anchoring device and construction method thereof
  • Threaded steel bar tensioning and anchoring device and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0047] The tensioning and anchoring device for threaded steel bars described in this embodiment mainly includes a steel bar clip 2, an anchor head 3, a rotary cylinder 4, a base 7, a steel backing plate 8, a rubber backing plate 9 and a rubber plug 13, when the threaded steel bar is stretched At 1 o'clock, the anchor head 3 and the rotating cylinder 4 rotate relative to each other, and at this time the anchor head 3 pushes out to the left, driving the steel bar clip 2 and the threaded steel bar 1 to move to the left, thereby stretching the threaded steel bar 1. The reinforcement clip 2 is a split structure, including a plurality of clip units arranged around the threaded steel bar 1, and the section of the clip unit is a right-angled trapezoidal structure. The anchor head 3 is a hollow tubular structure, the outer end is provided with an anchor head hexagonal head for the knob, and the outer end of the anchor head 3 is provided with an inverted conical cavity structure 302 for ...

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PUM

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Abstract

The invention discloses a threaded steel bar tensioning and anchoring device. The threaded steel bar tensioning and anchoring device comprises a threaded steel bar, a supporting mechanism and a jack mechanism, wherein one end of the threaded steel bar is arranged in a prestressed channel of a concrete wall, and the other end of the threaded steel bar extends out of the channel and is perpendicular to the concrete wall surface; the supporting mechanism and the jack mechanism are sequentially arranged in the axial direction of the threaded steel bar, and the supporting mechanism is arranged on the concrete wall surface; the supporting mechanism is pressed against the outer wall of the threaded steel bar; and one end of the jack mechanism is fixedly connected with the supporting mechanism, and the other end of the jack mechanism is clamped with the threaded steel bar so as to drive the threaded steel bar to axially move and stretch the threaded steel bar. The invention further provides a threaded steel bar tensioning and anchoring construction method. The prestressed structure of the threaded steel bar tensioning and anchoring device has the beneficial effects of reasonable stress, controllable tensile load, easiness in construction, low cost and low construction condition requirement.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to an integrated tensioning and anchoring device for threaded steel bars and a construction method thereof. Background technique [0002] Concrete is one of the most widely used building materials. It has the characteristics of low cost, good plasticity, and good durability. At the same time, concrete is also a tension-compression asymmetric material with good compressive strength and poor tensile strength. [0003] In order to make full use of the concrete material and overcome its weak tensile strength, in current applications, the most common method is to arrange prestressed steel bars in the concrete structure. The specific construction method is: after the concrete pouring is completed, use tension The method of high-strength prestressed steel strands is used to apply prestress to the concrete structure, so as to improve the shortcomings of the low tensile strengt...

Claims

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Application Information

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IPC IPC(8): E04C5/12E04C5/08E04G21/12
CPCE04C5/12E04C5/122E04C5/125E04G21/121
Inventor 张号军程小亮肖俊华
Owner 中冶南方城市建设工程技术有限公司
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