CN202248934U - Vertical prestressed tendon tensioning frame - Google Patents

Vertical prestressed tendon tensioning frame Download PDF

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Publication number
CN202248934U
CN202248934U CN 201120388391 CN201120388391U CN202248934U CN 202248934 U CN202248934 U CN 202248934U CN 201120388391 CN201120388391 CN 201120388391 CN 201120388391 U CN201120388391 U CN 201120388391U CN 202248934 U CN202248934 U CN 202248934U
Authority
CN
China
Prior art keywords
steel
platen
draw
stretch
vertical prestressing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201120388391
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Chinese (zh)
Inventor
宋乃虎
王传江
姜海洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Construction Eighth Engineering Division Co Ltd
Original Assignee
Ccecc Beijing Technology Inspection Co ltd
China Construction Civil Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ccecc Beijing Technology Inspection Co ltd, China Construction Civil Engineering Co Ltd filed Critical Ccecc Beijing Technology Inspection Co ltd
Priority to CN 201120388391 priority Critical patent/CN202248934U/en
Application granted granted Critical
Publication of CN202248934U publication Critical patent/CN202248934U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a vertical prestressing tendons stretch-draw frame, including steel platen and steel landing leg, there is a stretch-draw hole at the center of steel platen, and the steel platen is the rectangle, and every side welded connection in the lower surface both sides of steel platen has the steel landing leg, and the steel landing leg length differs, and one side is long, the opposite side is short, and the steel platen is the slope form, and handle or handle pull ring are connected respectively to the upper surface both sides of steel platen. The utility model overcomes traditional tensioning frame is difficult to guarantee "three concentric" shortcoming, has guaranteed jack and prestressing tendons and anchor backing plate center on same straight line, need not use other appurtenance, has simplified operation engineering, guarantees the quality that vertical prestressing force was tensioned and is drawn, has improved work efficiency. Can be widely applied to the building construction process.

Description

A kind of vertical prestressing bar stretch-draw frame
Technical field
The utility model relates to a kind of building operations work steel platen.
Background technology
Present national Line for Passenger Transportation, high speed railway construction are carrying out in a large number, and the concrete cast-in-situ continuous beam is an indispensable part in work progress, and wherein, vertical prestressing stretch-draw is a critical process in the Construction of continuous beam process.Usually in cast-in-situ continuous beam vertical prestressing stretching process; The different successive girder construction, tiltedly the web angle of inclination is different, and the slope of corresponding vertical prestressing bar is also different; If will guarantee vertical prestressing bar vertically inserts in the oblique web; Just be difficult for guaranteeing jack and vertical prestressing bar and anchor plate center on same straight line, i.e. " three is concentric ", so the stretch-draw quality can't be protected.The steel platen of traditional vertical prestressing bar stretch-draw frame does not have the angle of inclination, if will guarantee " three is concentric ", just must use other aids, and this has just caused the complicated operating process in the construction, needs to consume the manpower time, has influenced operating efficiency.
The utility model content
The purpose of the utility model provides a kind of vertical prestressing bar stretch-draw frame, solve the technical problem that the vertical prestressing reinforcing bar is vertically inserted; And solve the problem of jack and presstressed reinforcing steel and anchor plate " three is concentric ".
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of vertical prestressing bar stretch-draw frame comprises steel platen and steel leg, and there is a stretch-draw hole at the center of said steel platen; Said steel platen is a rectangle, and the every face down bonding in soffit both sides of steel platen is connected to steel leg in succession, and said steel leg is different in size; One side is long, opposite side is short, and the steel platen is skewed.
The upper surface both sides of said steel platen connect handle or handle draw ring respectively.
Said handle draw ring is nut, steel pipe, arc steel loop or circular steel loop.
Said steel leg has two, and every side is a rectangle steel plate, is welded to connect by stiffener between the rectangle steel plate of both sides.
Said steel leg has four, and every side is two steel columns or rectangle door pillar or arch door pillar, is welded to connect by stiffener between the adjacent steel column.
Said stiffener middle part is connected with a stiffener.
Compared with prior art the utlity model has following characteristics and beneficial effect:
The utility model has overcome the shortcoming that traditional stretch-draw frame is difficult to guarantee " three is concentric ".
The inclined design of the utility model steel platen has guaranteed that jack and presstressed reinforcing steel and anchor plate center are on same straight line; Therefore in work progress, need not simplify the operation engineering using other aids; Saved energy; Reduce the time, guaranteed the quality of vertical prestressing stretch-draw, improved operating efficiency.
The utility model stiffener and stiffener have guaranteed the stability of stretch-draw frame.
The utility model handle is designed with the mobile carrying that is beneficial to the stretch-draw frame, make in its work progress use more convenient.
The utility model can be widely used in the vertical prestressing bar stretching process of concrete cast-in-situ continuous beam in the building construction process.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further detailed explanation.
Fig. 1 is the structure front elevational schematic of the utility model embodiment one.
Fig. 2 is the structure schematic side view of the utility model embodiment one.
Fig. 3 is the structure schematic top plan view of the utility model embodiment one.
Fig. 4 is the structure front elevational schematic of the utility model embodiment two.
Fig. 5 is the structure schematic side view of the utility model embodiment two.
Fig. 6 is the structure schematic top plan view of the utility model embodiment two.
Reference numeral: 1-steel platen, 2-steel leg, 3-stiffener, 4-stretch-draw hole, 5-stiffener, 6-handle, 7-handle draw ring, 8-work durm, 9-reinforcing bar.
The specific embodiment
Embodiment one is referring to Fig. 1, Fig. 2, shown in Figure 3, and this vertical prestressing bar stretch-draw frame comprises steel platen 1, steel leg 2; There is a stretch-draw hole 4 at the center of said steel platen 1, and said stretch-draw hole 4 diameters are 8cm, leaves apart from concrete cast-in-situ continuous beam beam identity distance to be 30cm; Said steel platen 1 is a rectangle, long 40cm, wide 25cm; The every face down bonding in soffit both sides of steel platen 1 is connected to steel leg 2 in succession, and said steel leg 2 is different in size, and a side is long, opposite side is short; Steel platen 1 is skewed, and the angle of inclination that steel platen 1 forms is consistent with the angle of inclination of oblique web in constructing.The upper surface both sides of said steel platen 1 connect handle 6 or handle draw ring 7 respectively, and handle 6 is the reinforcing bar of diameter 8mm, flexibly connect with handle draw ring 7, and said handle draw ring 7 is nut, steel pipe, arc steel loop or circular steel loop.
The inclined design of said steel platen 1 has guaranteed that jack and presstressed reinforcing steel and anchor plate center are on same straight line; Therefore in work progress, need not simplify the operation engineering using other aids; Saved energy; Reduce the time, guaranteed the quality of vertical prestressing stretch-draw, improved operating efficiency.
Said steel leg 2 has two; Every side is a rectangle steel plate; Be welded to connect by stiffener 3 between the rectangle steel plate of both sides, said steel leg 2 has four, and every side is two steel columns or rectangle door pillar or arch door pillar; Be welded to connect by stiffener 3 between the adjacent steel column; Said stiffener 3 middle parts are connected with a stiffener 5, and said steel platen 1, steel leg 2, stiffener 3, stiffener 5, handle 6, handle draw ring 7 are steel, and steel platen 1, steel leg 2, stiffener 3 are processed for the thick steel plate of 3cm.
Embodiment two is referring to Fig. 4, Fig. 5, shown in Figure 6, and different with embodiment one is that the steel leg 2 of embodiment two is a doorframe shape, connects without stiffener in the middle of two steel legs, does not need stiffener; Adopt different handle designs,, two reinforcing bars 9 are therefrom passed, play the effect of handle at two work durms 8 of the both sides of steel platen upper surface welding, easy to use, when not using, reinforcing bar is taken out, can too much not take up room.
Referring to shown in Figure 4, said work durm diameter is 50mm, and bar diameter is 18mm.
The course of work of the utility model, step is following:
Step 1, stretch-draw frame angle of inclination is placed on the concrete cast-in-situ continuous beam beam face with tiltedly the web angle of inclination is consistent, and jack places on the steel platen;
Step 2, vertical prestressing bar is connected with anchor plate, passes reserved opening, over against the jack bottom surface;
Step 3, jack, vertical prestressing bar, anchor plate and oblique web are same angle, and prestressed stretch-draw begins;
Step 4, prestressed stretch-draw finish post-grouting, become intensity, the rigidity of the cast-in-place beam of overall enhanced with cast-in-place beam.

Claims (6)

1. vertical prestressing bar stretch-draw frame; Comprise steel platen (1) and steel leg (2), there is a stretch-draw hole (4) at the center of said steel platen (1), it is characterized in that: said steel platen (1) is a rectangle; The every face down bonding in soffit both sides of steel platen (1) is connected to steel leg (2) in succession; Said steel leg (2) is different in size, and a side is long, opposite side is short, and steel platen (1) is skewed.
2. a kind of vertical prestressing bar stretch-draw frame according to claim 1 is characterized in that: the upper surface both sides of said steel platen (1) connect handle (6) or handle draw ring (7) respectively.
3. a kind of vertical prestressing bar stretch-draw frame according to claim 2 is characterized in that: said handle draw ring (7) is nut, steel pipe, arc steel loop or circular steel loop.
4. a kind of vertical prestressing bar stretch-draw frame according to claim 2, it is characterized in that: said steel leg (2) has two, and every side is a rectangle steel plate, is welded to connect by stiffener (3) between the rectangle steel plate of both sides.
5. a kind of vertical prestressing bar stretch-draw frame according to claim 2, it is characterized in that: said steel leg (2) has four, and every side is two steel columns or rectangle door pillar or arch door pillar, is welded to connect by stiffener (3) between the adjacent steel column.
6. according to claim 4 or 5 described a kind of vertical prestressing bar stretch-draw framves, it is characterized in that: said stiffener (3) middle part is connected with a stiffener (5).
CN 201120388391 2011-10-13 2011-10-13 Vertical prestressed tendon tensioning frame Expired - Fee Related CN202248934U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120388391 CN202248934U (en) 2011-10-13 2011-10-13 Vertical prestressed tendon tensioning frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120388391 CN202248934U (en) 2011-10-13 2011-10-13 Vertical prestressed tendon tensioning frame

Publications (1)

Publication Number Publication Date
CN202248934U true CN202248934U (en) 2012-05-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201120388391 Expired - Fee Related CN202248934U (en) 2011-10-13 2011-10-13 Vertical prestressed tendon tensioning frame

Country Status (1)

Country Link
CN (1) CN202248934U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103103924A (en) * 2013-01-22 2013-05-15 北京工业大学 Angle self-adaptation beam bridge vertical prestressing force tensioning counter-force seat
CN105758707A (en) * 2016-03-30 2016-07-13 广西众诚工程质量检测有限公司 Circular pull-out test supporting device
CN109623760A (en) * 2018-10-26 2019-04-16 国网浙江省电力有限公司杭州供电公司 A kind of insulating bar laying rack

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103103924A (en) * 2013-01-22 2013-05-15 北京工业大学 Angle self-adaptation beam bridge vertical prestressing force tensioning counter-force seat
CN103103924B (en) * 2013-01-22 2015-01-21 北京工业大学 Angle self-adaptation beam bridge vertical prestressing force tensioning counter-force seat
CN105758707A (en) * 2016-03-30 2016-07-13 广西众诚工程质量检测有限公司 Circular pull-out test supporting device
CN109623760A (en) * 2018-10-26 2019-04-16 国网浙江省电力有限公司杭州供电公司 A kind of insulating bar laying rack

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C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Free format text: FORMER OWNER: CHINA CONSTRUCTION CIVIL CONSTRUCTION CORP.

Effective date: 20140613

Owner name: CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION CO.

Free format text: FORMER OWNER: CHINA CIVIL ENGINEERING EIJING ECHINCAL DETECTION CO., LTD.

Effective date: 20140613

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 102613 DAXING, BEIJING TO: 200135 PUDONG NEW AREA, SHANGHAI

TR01 Transfer of patent right

Effective date of registration: 20140613

Address after: 200135 Pudong New Area Century Avenue, Shanghai, No. 27, layer 1568

Patentee after: CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION Co.,Ltd.

Address before: 102613 Beijing city Daxing District Huangcun Langfa village billion Industrial Park No. 4

Patentee before: CCECC (Beijing) Technology Inspection Co.,Ltd.

Patentee before: CHINA CONSTRUCTION CIVIL ENGINEERING Co.,Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120530

Termination date: 20181013