CN2215538Y

CN2215538Y - Steel wire bundle prestressed hole tie

Info

Publication number: CN2215538Y
Application number: CN 95230824
Authority: CN
Inventors: 刘树范; 姜洋; 刘成立; 杨登明; 张岩; 刘龙碧
Original assignee: 刘树范
Priority date: 1995-04-14
Filing date: 1995-04-14
Publication date: 1995-12-20
Anticipated expiration: 2005-04-14

Abstract

The utility model belongs to a prestressed pore canal clamping fixture formed by a bundle mould of high-strength steel wires. The periphery of a bundle core of the clamping fixture is provided with a cycle of high strength steel wires which are wound by impervious layers entangled by thin iron wires, nonaqueous and hard paste materials are coated on the outer sides of the impervious layers of which the periphery is wrapped and wound by the high strength steel wires in parallel and is wound and fixed by the thin iron wires. The clamping fixture has the characteristics of simple structure and easy operation, does not need special materials and equipment, and is made from and used for the high strength steel wires. The clamping fixture can be widely used for the civil engineering and the bridge engineering.

Description

Steel wire bundle prestressed hole tie

The utility model belongs to the high-tensile steel wires beam hole road formation technology in the post tensioning structure in civil engineering, the bridge engineering, especially adopts a kind of high strength steel tow mould of forming with the prestressed high strength steel wire and the bundle stamen of intended diameter to form prestressed high strength steel tendon duct mold.

High-tensile steel wires beam hole road in the post tensioning structure forms with the heavy wall sebific duct at present, and its success rate is less than 100%, and loss is serious during failure; Change and use the special bellows of sheet iron, its success rate guarantees 100%, but its cost almost reaches 20% of high strength steel tow (not containing ground tackle), also has other method cost also quite high.

The purpose of this utility model provides a kind of prestressed structure duct formation technology, and construction control must be not strict, and the glitch-free steel tendon mould of the cement concrete after the final set is formed post-stressed duct mold.

The utility model is achieved in that the high strength steel tow mould of forming with the prestressed high strength steel wire of intended diameter forms the prestressed pore passage mold.Have the high-tensile steel wires of arranging in a week in its bundle stamen outside, looping one deck impervious barrier on all high-tensile steel wires, to prevent that the mortar in the water cement concrete from infiltrating, and snarl impervious barrier with thin wire, outside impervious barrier, be coated with the on-hydraulic ointment material, outside ointment material week with the high-tensile steel wires arrange packets around, and twine solid with thin wire, after wiping the ointment material of extruding, smear a kind of ointment material that is insoluble to cement mortar with on-hydraulic.

Behind design curvature, length, external diameter manufacturing steel tendon mould mold, after placing the interior location of cement concrete construction member template, placing cement concrete in injection, Deng after the final set promptly ℃ * hour=during 100-130, live all or part of of high-tensile steel wires in the outer impervious barrier of Shu Rui with the ground tackle anchor used of high strength steel tow of design, related Shu Rui extracts simultaneously or part is extracted.Secondly impervious barrier is contained impervious material and twine iron wire and extract simultaneously.To select gapped one to extract other parts successively after extracting earlier at last with the high-tensile steel wires of cement concrete contact portion, and all extract the back and wash away foreign material in the concrete pore passage with the pressure water Great Wall Software's bar round wire brush of holding concurrently.

Its radius is less than R with wire rope bundle stamen ₃Greater than R ₂The time, the suitable sparse lay winding wire ropes of iron wire of choosing makes its radius reach R ₃, the iron wire spacing with high-tensile steel wires deflection does not take place exceeds, and this moment can be without the high-tensile steel wires in the impervious barrier.

Using this mold equally with heavy wall sebific duct method to establish joint in the middle of the duct, is whole etc. cancellation joint after the skilled operation; The isometric remainder slightly in steel tendon mould mold and duct is because their equal lengths.

Can be used to pierce in the duct of concrete beam or plate after having the steel tendon taking-up in the mold, carry out autofrettage.Form like this and promptly make mold with high-tensile steel wires and make reinforcing bar (prestressed high strength steel wire) in the concrete again.

The utlity model has simple in structure, the characteristics of processing ease, and has special material of not needing and equipment, it is a kind of high-tensile steel wires of taking from, and is used for high-tensile steel wires, and its success rate is all 100% mutually with bellows, cost only is about the 6-7% of bellows, be about 1/2nd of heavy wall sebific duct, and construction control must be not strict, noiseless to the cement concrete after the final set.Can be widely used in civil engineering, the bridge engineering and use.

Concrete structure of the present utility model and embodiment are provided by the following drawings.

Fig. 1 is a general structure schematic diagram of the present utility model;

Fig. 2 is the cross-sectional view of the utility model Fig. 1;

Fig. 3 is the utility model embodiment 2 cross-sectional view.

Below in conjunction with accompanying drawing concrete structure of the present utility model and embodiment are done with further instruction.

Embodiment 1

See shown in Fig. 1-2: the high strength steel tow mould of forming with the prestressed high strength steel wire of intended diameter forms the prestressed pore passage mold.At the bundle stamen 6 of its more piece short cylindrical or cylinder composition, every joint length is 3R ₂-5R ₂Every internode exceeds apart from making its high-tensile steel wires that surrounded that deflection not take place with assurance. have the high-tensile steel wires of arranging in a week 3 in its bundle stamen 6 outsides, looping one deck impervious barrier 4 on high-tensile steel wires 3, to prevent that the mortar in the water cement concrete from infiltrating, and snarl impervious barrier 4 with thin iron wire 5, outside impervious barrier 4, be coated with on-hydraulic ointment material 2, periphery at ointment material 2 holds with high tensile steel wire 3, and be fastened with thin iron wire 1, after wiping the ointment material of extruding, smear a kind of ointment material 7 that is insoluble to cement mortar with on-hydraulic.

Embodiment 2

See shown in Figure 3: its radius is less than R with wire rope bundle stamen 6 ₃Greater than R ₂The time, the suitable iron wire 5 sparse lay winding wire ropes 3 of choosing make its radius reach R ₃Deflection does not take place with high-tensile steel wires and exceeds in iron wire 5 spacings, on its wire rope bundle stamen 6, twine thin iron wire 5, on thin iron wire 5, hold impervious barrier 4, on impervious barrier 4, be coated with on-hydraulic ointment material 2, hold with high tensile steel wire 3 in the periphery of ointment material 2, and be fastened with thin iron wire 1, after wiping the ointment material of extruding, smear a kind of ointment material 7 that is insoluble to cement mortar with on-hydraulic.

Embodiment 3

See shown in Fig. 1-2: on its wooden bundle stamen 6, twine thin iron wire 5, secondly finish mold according to the foregoing description 1 method.

Ointment material 2 is a clay mud, and ointment material 7 is a glass putty.

Bundle stamen 6 is wooden cylinder, wire rope, cylinder or cylindrical metal material or nylon material.

Claims

1, the steel tendon mould forms post-stressed duct mold, it is characterized in that: at the Shu Rui (6) of its more piece short cylindrical or cylinder composition, every joint length is 3R ₂-5R ₂Have the high-tensile steel wires of arranging in a week (3) in its Shu Rui (6) outside, go up looping one deck impervious barrier (4) at high-tensile steel wires (3), on impervious barrier (4), has fixing thin iron wire (5), on impervious barrier (4) and thin iron wire (5), has on-hydraulic ointment material (2), have high tensile steel wire (3) in the periphery of ointment material (2) and hold, on its high-tensile steel wires (3), have a kind of ointment material (7) and thin iron wire (1) that on-hydraulic is insoluble to cement mortar.

2, form post-stressed duct mold by the described steel tendon mould of claim 1, it is characterized in that: on its wire rope Shu Rui (6), have thin iron wire (5), on thin iron wire (5), has impervious barrier (4), on impervious barrier (4), has on-hydraulic ointment material (2), periphery at ointment material (2) has high tensile steel wire (3), has a kind of ointment material (7) that thin iron wire (1) and on-hydraulic are insoluble to cement mortar on high-tensile steel wires (3).

3, form post-stressed duct mold by the described steel tendon mould of claim 1, it is characterized in that: ointment material (2) is a clay mud, and ointment material (7) is a glass putty.

4, form post-stressed duct mold by the described steel tendon mould of claim 1, it is characterized in that: Shu Rui (6) is wooden cylinder, wire rope, cylinder or cylindrical metal material or nylon material.