CN201695706U - Tensioning device of prestress fiber cloth for reinforcing reinforced concrete column - Google Patents
Tensioning device of prestress fiber cloth for reinforcing reinforced concrete column Download PDFInfo
- Publication number
- CN201695706U CN201695706U CN2010202406125U CN201020240612U CN201695706U CN 201695706 U CN201695706 U CN 201695706U CN 2010202406125 U CN2010202406125 U CN 2010202406125U CN 201020240612 U CN201020240612 U CN 201020240612U CN 201695706 U CN201695706 U CN 201695706U
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- concrete column
- fiber cloth
- cloth
- tensioning device
- flap
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Abstract
A tensioning device of prestress fiber cloth for reinforcing reinforced concrete column relates to a tensioning device of fiber cloth for reinforcing reinforced concrete column. The utility model settles the following problems in prior-art tensioning device: incapability of fully utilizing the characteristics of high specific strength and high specific modulus of fiber cloth, high construction cost, and new damage for concrete column in tensioning fiber cloth. Two square supporting frames (3) are parallelly jacketed on a concrete column (1) along the longitudinal direction of the concrete column (1). One end of each flap (7) is fixedly welded to an edge of a square supporting frame (3). A load bearing plate (9) is connected with the other end of each of two flaps (7) through screw bolts. Two ends of a roller (4) are respectively provided with a connection block (2) fixedly. One end of each pull rod (5) is connected with the load bearing plate (9) through one prepressing screw bolt (8). The other end of each pull rod (5) is fixedly connected with the connection block (2). The tensioning device of prestress fiber cloth for reinforcing reinforced concrete column is used for tensioning the fiber cloth in structural engineering of building.
Description
Technical field
The utility model relates to a kind of tensioning equipment of cloth of reinforced steel concrete post, is specifically related to a kind of tensioning equipment of pre-stressed fiber cloth of reinforced steel concrete post, belongs to the structural engineering technical field.
Background technology
When concrete column produces longitudinal crack owing to external influences such as supporting capacity deficiency or thermal stresseses, can paste cloth at the hoop of concrete column and reinforce,, improve the supporting capacity and the application life of concrete column with the development in attachment surface crack.
Cloth (particularly carbon fiber) is owing to have excellent physics characteristic and durability and corrosion resistance, and have specific strength and specific modulus height (intensity and modulus obtain specific strength and specific modulus with the ratio of deadweight respectively), anti-fatigue performance is good and advantage such as fracture safety height, be used widely aspect the reinforced concrete tension.In the prior art, usually adopt cloth is directly sticked on the concrete column surface, technology is simple, but cloth is passive stressed, only cloth just works when the structure stand under load and when machine direction is extended, cloth far can not be brought into play the advantage that it has under normal operative condition, and is not remarkable to the inhibition effect of external crack development.
For overcoming the above problems, cloth is sticked on the concrete column surface again applying under the prestressing force condition, can effectively improve the utilization rate of cloth, the generation and the development of confined concrete post external crack better simultaneously is beneficial to supporting capacity that improves concrete column and the application life that prolongs concrete column.
At present, cloth is applied prestressed tensioning equipment tool also seldom both at home and abroad, in order to satisfy need of real project, research and develop a kind of simple and convenient tensioned device of pre-stressed fiber cloth of reinforced steel concrete post, make it can utilize less power to make cloth reach bigger stretching force, make full use of the specific strength and the high characteristic of specific modulus of cloth, save construction cost, and reduce to cause new damage to become problem demanding prompt solution to concrete column because of the stretch-draw cloth.
The utility model content
The purpose of this utility model is in order to solve specific strength and high characteristic, the construction cost height of specific modulus that existing tensioning equipment can't make full use of cloth, because of the stretch-draw cloth concrete column is caused the problem of new damage, and then a kind of tensioning equipment of pre-stressed fiber cloth of reinforced steel concrete post is provided.
The technical solution of the utility model is: the tensioning equipment of the pre-stressed fiber cloth of reinforced steel concrete post partly is made up of standing part and stretch-draw, described standing part comprises two square bracing frames and two flaps, each square bracing frame is made up of two fixedly connected right angle bearings, two square bracing frames vertically are sleeved on the concrete column along concrete column side by side, one end of each flap is fixedly welded on the seamed edge of corresponding square bracing frame, and flap tilts to the inboard of concrete column, described stretch-draw part is by roller bearing, bearing plate, two contiguous blocks, two pull bars and two precompressed bolts are formed, bearing plate is connected with bolt with the other end of two flaps, the two ends of roller bearing respectively are installed with a contiguous block, one end of each pull bar is connected with bearing plate by a precompressed bolt, the other end of corresponding pull bar is fixedlyed connected with a contiguous block, cloth is around one week of concrete column, one end of cloth fixedly sticks on the concrete column, and the other end of cloth twines and fixedly sticks on the roller bearing.
The utility model compared with prior art has following effect: the utility model applies prestressing force to cloth, makes full use of the specific strength and the high characteristic of specific modulus of cloth, has saved construction cost.In addition, the utility model low cost of manufacture can reuse, and is easy to transport and carry, and the stretching process cloth is stressed, and evenly stretch-draw is effective, and tension operation is little to former concrete structure damage, has also shortened the duration simultaneously.
Description of drawings
Fig. 1 is an overall structure front view of the present utility model, and Fig. 2 is the vertical view of Fig. 1.
The specific embodiment
The specific embodiment one: present embodiment is described in conjunction with Fig. 1 and Fig. 2, the tensioning equipment of the pre-stressed fiber cloth of the reinforced steel concrete post of present embodiment partly is made up of standing part and stretch-draw, described standing part comprises two square bracing frames 3 and two flaps 7, each square bracing frame 3 is made up of two fixedly connected right angle bearing 3-1, two square bracing frames 3 vertically being sleeved on side by side on the concrete column 1 along concrete column 1, one end of each flap 7 is fixedly welded on the seamed edge of corresponding square bracing frame 3, and flap 7 tilts to the inboard of concrete column 1, described stretch-draw part is by roller bearing 4, bearing plate 9, two contiguous blocks 2, two pull bars 5 and two precompressed bolts 8 are formed, bearing plate 9 is connected with bolt with the other end of two flaps 7, the two ends of roller bearing 4 respectively are installed with a contiguous block 2, one end of each pull bar 5 is connected with bearing plate 9 by a precompressed bolt 8, the other end of corresponding pull bar 5 is fixedlyed connected with a contiguous block 2, cloth 6 is around 1 one weeks of concrete column, one end of cloth 6 fixedly sticks on the concrete column 1, and the other end of cloth 6 twines and fixedly sticks on the roller bearing 4.
The specific embodiment two: in conjunction with Fig. 2 present embodiment is described, the sharp angle that forms between the flap 7 of present embodiment and the square bracing frame 3 is 30 °～50 °.The stretch-draw better effects if so is set.Other composition and annexation are identical with the specific embodiment one.
The specific embodiment three: in conjunction with Fig. 2 present embodiment is described, the standing part of the tensioning equipment of present embodiment also increases two floors 10, and every floor 10 is welded between corresponding flap 7 and the square bracing frame 3.So be provided with, strengthened the stability of tensioning equipment.Other composition and annexation are identical with the specific embodiment one or two.
The course of work:(referring to Fig. 1 and Fig. 2): at first, standing part of the present utility model is installed on the concrete column to be reinforced 1, cloth 6 is around 1 one weeks of concrete column, one end of cloth 6 fixedly sticks on the concrete column 1, the other end of cloth 6 is wrapped on the roller bearing 4 and fixing the stickup, after the adhesive curing, one end of two pull bars 5 is fixedlyed connected with the contiguous block 2 of roller bearing 4 ends, the other end of two pull bars 5 is connected with bearing plate 9 usefulness precompressed bolts 8, two pull bars 5 are subjected to pulling force and pulling force are passed to roller bearing 4 when with torque spanner precompressed bolt 8 being applied power, thereby make cloth 6 also be subjected to pulling force, realized the stretch-draw of cloth 6.Bearing plate 9 can be established a plurality of bolts hole thereon according to the width of cloth 6 and the length of pull bar 5, so just can after the intact cloth of stretch-draw, only move a square bracing frame 3 and just can carry out the stretch-draw of second cloth, not have the space thereby can make between adjacent two cloth of stretch-draw.
Claims (3)
1. the tensioning equipment of the pre-stressed fiber cloth of a reinforced steel concrete post, it is characterized in that: described tensioning equipment partly is made up of standing part and stretch-draw, described standing part comprises two square bracing frames (3) and two flaps (7), each square bracing frame (3) is made up of two fixedly connected right angle bearings (3-1), two square bracing frames (3) vertically are sleeved on the concrete column (1) side by side along concrete column (1), one end of each flap (7) is fixedly welded on the seamed edge of corresponding square bracing frame (3), and flap (7) tilts to the inboard of concrete column (1), described stretch-draw part is by roller bearing (4), bearing plate (9), two contiguous blocks (2), two pull bars (5) and two precompressed bolts (8) are formed, bearing plate (9) is connected with bolt with the other end of two flaps (7), the two ends of roller bearing (4) respectively are installed with a contiguous block (2), one end of each pull bar (5) is connected with bearing plate (9) by a precompressed bolt (8), the other end of corresponding pull bar (5) is fixedlyed connected with a contiguous block (2), cloth (6) is around (1) one week of concrete column, one end of cloth (6) fixedly sticks on the concrete column (1), and the other end of cloth (6) twines and fixedly sticks on the roller bearing (4).
2. the tensioning equipment of the pre-stressed fiber cloth of reinforced steel concrete post according to claim 1 is characterized in that: the acute angle (α) that forms between flap (7) and the square bracing frame (3) is 30 °～50 °.
3. the tensioning equipment of the pre-stressed fiber cloth of reinforced steel concrete post according to claim 1 and 2, it is characterized in that: the standing part of tensioning equipment also comprises two floors (10), and every floor (10) is welded between corresponding flap (7) and the square bracing frame (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202406125U CN201695706U (en) | 2010-06-29 | 2010-06-29 | Tensioning device of prestress fiber cloth for reinforcing reinforced concrete column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202406125U CN201695706U (en) | 2010-06-29 | 2010-06-29 | Tensioning device of prestress fiber cloth for reinforcing reinforced concrete column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201695706U true CN201695706U (en) | 2011-01-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202406125U Expired - Fee Related CN201695706U (en) | 2010-06-29 | 2010-06-29 | Tensioning device of prestress fiber cloth for reinforcing reinforced concrete column |
Country Status (1)
| Country | Link |
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| CN (1) | CN201695706U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806673A (en) * | 2014-02-19 | 2014-05-21 | 重庆交通大学 | Carbon fiber sheet stretching-drawing device for concrete column strengthening treatment |
| CN105781140A (en) * | 2016-04-08 | 2016-07-20 | 广东工业大学 | Self-anchored pre-stressed fiber reinforced composite cloth based concrete strengthening device and method |
| CN106522578A (en) * | 2016-11-29 | 2017-03-22 | 河北建筑工程学院 | Method for carrying out pre-stress reinforcement on wood post through winding method |
| CN111608422A (en) * | 2020-06-17 | 2020-09-01 | 辽宁工程技术大学 | Tensioning device for pasting fiber cloth on concrete beam column |
-
2010
- 2010-06-29 CN CN2010202406125U patent/CN201695706U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806673A (en) * | 2014-02-19 | 2014-05-21 | 重庆交通大学 | Carbon fiber sheet stretching-drawing device for concrete column strengthening treatment |
| CN105781140A (en) * | 2016-04-08 | 2016-07-20 | 广东工业大学 | Self-anchored pre-stressed fiber reinforced composite cloth based concrete strengthening device and method |
| CN106522578A (en) * | 2016-11-29 | 2017-03-22 | 河北建筑工程学院 | Method for carrying out pre-stress reinforcement on wood post through winding method |
| CN111608422A (en) * | 2020-06-17 | 2020-09-01 | 辽宁工程技术大学 | Tensioning device for pasting fiber cloth on concrete beam column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20110629 |