Inside single-beam sealed prestressed group-anchor system and construction method thereof

A prestressed and prestressed tendon technology, applied in the processing of building materials, structural elements, building components, etc., can solve the problems of increasing the diameter of the reserved holes in the structure, filling a large amount of anti-corrosion materials, and being inconvenient for installation and construction. Easy to change cables or temporary anchoring, high construction efficiency, easy to operate

Active Publication Date: 2018-10-12
LIUZHOU OVM MASCH CO LTD
View PDF9 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, these three layers of protection will be destroyed when the anchor head is clamped. Whether it is an extruded anchor or a clip-type anchor, it will be corroded by the environment due to the damage of the protective medium. Add a protective cover and a sealing device to provide anti-corrosion protection for the part where the PE sheath is stripped at the clamping point. The sealing device here is usually in the form of a cylinder filled with anti-corrosion medium to provide overall sealing protection for multiple bundles of prestressed tendons, such as the invention patent " A cable anchor using a single seal" (Patent Publication No. CN 106638309 A Figure 10 ), the sealing

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
  • Inside single-beam sealed prestressed group-anchor system and construction method thereof
  • Inside single-beam sealed prestressed group-anchor system and construction method thereof
  • Inside single-beam sealed prestressed group-anchor system and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A single-bundle sealed prestressed group anchor system in the body:

[0060] Such as figure 1 As shown, the single-bundle sealed prestressed group anchor system in the body includes a protective cover assembly 1, a working clip 3, an anchor plate, an anchor backing plate 5, m unbonded prestressed tendons 6, and a pre-embedded tunnel 7;

[0061] The unbonded prestressed tendon 6 is a single-bundle sealed prestressed tendon, and the anchor plate is a sealed anchor plate assembly 4, such as figure 2 As shown, the sealing anchor plate assembly 4 includes a working anchor plate 41, a rubber taper sleeve 42, a plastic limit sleeve 43 and a pressing plate 44. One end of the working anchor plate 41 is provided with a tapered hole I 411 for installing the clip. The working anchor The other end of the plate 41 has a groove 414, the pressing plate 44 is located in the groove 414, and the tail of the straight hole 412 in the working anchor plate has a tapered hole II 413 (see ...

Embodiment 2

[0067] A construction method of a single-bundle sealed prestressed group anchor system in the body, which comprises the following steps:

[0068] A. Preparations before construction: Prefabricate the components of the sealing anchor plate assembly 4 in the factory, including the working anchor plate 41, the rubber cone sleeve 42, the plastic limit sleeve 43 and the compression plate 44 (see Figure 3-Figure 6 );

[0069] B. After positioning and installing the anchor plate 5 and the pre-embedded tunnel 7 (corrugated pipe or extraction pipe), pour concrete;

[0070] C. After the concrete reaches the required strength, pass the prestressed tendon through the tunnel, and peel off the PE sheath at the end of the prestressed tendon;

[0071] D. Install sealing anchor plate assembly 4:

[0072] Install the sealing anchor plate assembly 4 on the anchor pad 5, and raise it to a certain height so as to pass through the bundle;

[0073] E. Wearing beams:

[0074] Pass each prestress...

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 an inside single-beam sealed prestressed group-anchor system which comprises a protection cover assembly, working clamping pieces, a sealing anchor plate assembly, anchor bearing plates, a plurality of single-beam sealed prestressed ribs and pre-embedded channels; the sealing anchor plate assembly comprises working anchor plates, rubber cone sleeves, plastic limiting sleeves and a pressing plate; the rubber cone sleeves are of a multiple-piece wedge-shaped rubber ring structure; and the plastic limiting sleeves are arranged to be hollow round shaft sleeves with unequaldiameters and steps. In an installation state, the prestressed ribs correspondingly penetrate through the pressing plate, the plastic limiting sleeves, the rubber cone sleeves located in cone holes IIand cone holes I of the working anchor plates; the working clips clamps the prestressed ribs; the rubber cone sleeves tightly press and cooperate with the working anchor plates cone holes II, and therubber cone sleeves tightly press and cooperate with the prestressed ribs PE protection sleeves. The group-anchor system is mainly used for working conditions with longitudinal replaceable prestressed ribs inside. The sealing anchor plate assembly is used for effectively sealing and connecting with the exposed parts of the prestressed ribs PE protection sleeves, and therefore effectively sealingand anti-corrosion protection are achieved for the prestressed ribs; and construction is simple and practicability is high.

Description

technical field [0001] The invention relates to an internally sealed prestressed group anchor system and a construction method thereof, in particular to an internal single-bundle sealed prestressed group anchor system and a construction method thereof. Background technique [0002] In the post-tensioned prestressed concrete structure, in order to ensure the long-term reliability of the prestressed tendons under high stress state, the prestressed tendons should be effectively anti-corrosion. At present, the monofilament spraying epoxy coating technology is usually used to protect the steel wires. The single bundle of prestressed tendons is protected by wrapping grease and PE sheath, thus playing a triple protection role for the prestressed steel wire. [0003] However, these three layers of protection will be destroyed when the anchor head is clamped. Whether it is an extruded anchor or a clip-type anchor, it will be corroded by the environment due to the damage of the protec...

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
IPC IPC(8): E04C5/12E04G21/12
CPCE04C5/12E04G21/12
Inventor 刘进温朝臣黄颖莫鲤木左海宁覃广志曾航宇经凤明周杰
Owner LIUZHOU OVM MASCH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap