CN104675023A - Accurate positioning device for corrugated pipe - Google Patents
Accurate positioning device for corrugated pipe Download PDFInfo
- Publication number
- CN104675023A CN104675023A CN201310632234.3A CN201310632234A CN104675023A CN 104675023 A CN104675023 A CN 104675023A CN 201310632234 A CN201310632234 A CN 201310632234A CN 104675023 A CN104675023 A CN 104675023A
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- bellows
- corrugated pipe
- positioning
- steel bar
- accurate positioning
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- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses an accurate positioning device for a corrugated pipe and relates to the technical field of adopting pre-stress post-tensioning method for construction by a bridge engineering beam plate prefabricated member and a building type large-span prefabricated structure. The accurate positioning device comprises a box girder steel bar platform mold frame, top locking rods, vertical rods, web distributed steel bar positioning bars, corrugated pipe positioning steel pipes and movable pins, wherein the plurality of top locking rods are uniformly arranged at the upper part of the box girder steel bar platform mold frame in a transverse direction; the plurality of vertical rods are uniformly arranged on the two sides of the box girder steel bar platform mold frame; the plurality of web distributed steel bar positioning bars are uniformly arranged on one side of each vertical rod; the plurality of corrugated pipe positioning steel pipes are arranged on the other sides of the vertical rods; the movable pins are inserted into the corrugated pipe positioning steel pipes; and the corrugated pipe is arranged on the movable pins. By virtue of the accurate positioning device, theoretically calculated corrugated pipe subsection three-dimensional data can be efficiently and smoothly realized, accurate positioning can be performed, and a pipeline is smooth.
Description
Technical field:
The present invention relates to a kind of bellows accurate positioning device, belong to the technical field of bridge engineering beam slab prefabricated units and the construction of Building class Large-span Precast structure employing utilizing prestressing force post tensioning method.
Background technology:
During bridge engineering beam slab prefabricated units and Building class Large-span Precast structure (as bent cap) adopt utilizing prestressing force post tensioning method to construct, for case beam, to the construction of box girder web, baseplate reinforcing bar skeleton, current state-of-the-art method adopts a kind of sizing stand (No. 2914586, invention patent certificate; Application for a patent for invention numbers 201210507499.6; Patentee is Gansu Road And Bridge Construction Group Co., Ltd..The principle of this invention is: the Bench mould support that manufactured size is consistent with cage of reinforcement, and Bench mould support longitudinal framework spacing is 0.8m, Bench mould support is provided with web hooping positioning bar, web distribution reinforcement positioning bar, base plate longitudinal reinforcement position line; The reinforcing steel bar part made is installed colligation according to design and respective position in Bench mould support, forms box girder integral steel reinforcement framework, then adopt special hanger that cage of reinforcement entirety is hung Bench mould support, be located in and treat on prefabricated case beam base.Then according to calculating, the locus that manually span determination bellows is pre-buried on cage of reinforcement, installs bellows, then install bin beam forms, carries out concreting, complete element precast.
From practice of construction, skeleton entirety is also hung to move to and is treated on prefabricated case beam base by Bench mould support method processing steel bar framework of box beam, has that process velocity is fast, good integrity, the feature that cage of reinforcement qualification rate is high, ensure that cage of reinforcement total quality, improve efficiency, save cost.
But because this stand does not consider the installation question of bellows, and bellows secondary installing is carried out in intensive cage of reinforcement, plain bars is dodged bellows and can only be carried out and cut off plain bars or bellows is condescended to take this post, tear benefit open like this, make installation difficulty larger, and be difficult to ensure bellows smooth-going, unavoidable indivedual local card, partially.And, treating on prefabricated case beam base, each all need adopts traditional artificial inclined-plane pointwise span location to overall cage of reinforcement by single-piece method, like this, be easy to occur mistake and error, accuracy reduced greatly, adds the off normal of bellows, condescend to take this post, its location qualification rate reduces greatly, time-consuming.
Summary of the invention:
For the problems referred to above, the technical problem to be solved in the present invention is to provide a kind of bellows accurate positioning device.
Positioner of the present invention, it comprises case beam steel Bench mould support, top latch bar, montant, web distribution reinforcement positioning bar, bellows positioning steel tube and removable pin; The upper lateral of case beam steel Bench mould support is evenly provided with several top latch bar, the both sides of case beam steel Bench mould support are evenly provided with several montant, the side of each montant is evenly provided with several web distribution reinforcement positioning bar, the opposite side of montant is provided with several bellows positioning steel tube, the inside of bellows positioning steel tube is plugged with removable pin, and bellows is placed on removable pin.
Beneficial effect of the present invention: the bellows segmented three-dimensional data of theory calculate can realize, accurately locate by smoothly, realize pipeline smooth-going.
Accompanying drawing illustrates:
For ease of illustrating, the present invention is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is structural representation of the present invention,
Fig. 2 is the left view of Fig. 1,
Fig. 3 is the A portion enlarged drawing of Fig. 2.
1-case beam steel Bench mould support; 2-top latch bar; 3-montant; 4-web distribution reinforcement positioning bar; 5-bellows positioning steel tube; 6-removable pin; 7-bellows.
Detailed description of the invention:
As Figure 1-3, this detailed description of the invention by the following technical solutions: it comprises case beam steel Bench mould support 1, top latch bar 2, montant 3, web distribution reinforcement positioning bar 4, bellows positioning steel tube 5 and removable pin 6; The upper lateral of case beam steel Bench mould support 1 is evenly provided with several top latch bar 2, the both sides of case beam steel Bench mould support 1 are evenly provided with several montant 3, the side of each montant 3 is evenly provided with several web distribution reinforcement positioning bar 4, the opposite side of montant 3 is provided with several bellows positioning steel tube 5, the inside of bellows positioning steel tube 5 is plugged with removable pin 6, and bellows 7 is placed on removable pin 6.
This detailed description of the invention adopts following fixing means:
1, the Bench mould support of steel bar framework of box beam makes and Bench mould support montant pitch requirements
According to steel bar framework of box beam size, design, making Bench mould support, Bench mould support montant spacing is 0.8m.
2, bellows single-point three-dimensional position is determined
1) designing unit arranges linear according to prestressing force, provide linear equations and computational methods, according to linear equations, selected spacing segmentation is carried out calculating (if this case beam is by 0.8m), form bellows space coordinates table, design drawing provides bellows space coordinates table.
2) calculating of segmented three-dimensional position (bellows positioning steel tube position)
The setting-out abscissa x ˊ of bellows positioning steel tube is that Bench mould support center line intends the horizontal range of welding position to steel pipe.The setting-out abscissa x ˊ of steel pipe equals the design abscissa x of steel strand.
xˊ=x
According to y in design coordinates table, calculate the setting-out ordinate y ˊ at bellows positioning steel tube center.
yˊ=y/(cosα)-（D/2）-（d/2）。
Wherein α---box girder web inclination angle (°)
D---outside diameter of bel (mm)
D---removable pin external diameter (mm)
3, segmented three-dimensional position is determined
According to the linear layout of bellows, by accurate calculating, data (x ˊ, y ˊ) setting-out will be calculated on Bench mould support montant.
4, the welding of bellows positioning steel tube and removable pin are arranged
On the central point position of the same side setting-out on Bench mould support montant, horizontal welding spreading 10cm, internal diameter are the steel pipe of Ф 15mm, notice that steel pipe answers level, steel pipe concordant with Bench mould support skeleton towards the one end inside Bench mould support (tangle or scratch when preventing shaping cage of reinforcement from hanging out Bench mould support).
The removable pin being convenient to plug is set in steel pipe; removable pin adopts straight Ф 14 one-level plain bar (to be slightly less than diameter of steel tube; meticulous removable pin easily tilts), length is about protective layer thickness (2cm) inside 40cm ﹝ web thickness (25cm)-web+steel pipe length (10cm)+plug active length (5cm)=38cm.
5, the accurate location of bellows installation and short transverse
After box girder web, the machine-shaping of baseplate reinforcing bar skeleton, consider the sequencing of skeleton stirrup (plain bars that specification is mentioned) and bellows installation, removable pin is inserted in positioning steel tube one by one; Penetrate bellows from cage of reinforcement one end, be placed in by bellows on removable pin, namely elevation location this moment accurately locates.
6, the accurate location of bellows installation and thickness direction
According to web reinforcement skeleton thickness, bellows is placed in design attitude (being generally designed to frame center position), then the plan-position at this place is accurately located.
7, accurately the fixedly securing of bellows
At reinforcing steel processing shed, according to the length blanking of groined type spacer bars, and be made into " Lv " shape draw-in groove semiproduct consistent with bellows width, this draw-in groove is inserted on the bellows in cage of reinforcement in removable pin position, bellows is blocked, and according to the position accurate welding of bellows on web thickness direction on cage of reinforcement, then the 4th of repair welding groined type the reinforcing bar, realize accurately, fixedly positioning.Now, removable pin completes mission, can remove at any time as required.
This detailed description of the invention has following beneficial effect:
1, the bellows segmented three-dimensional data of theory calculate are achieved by efficiently in construction, and accurately locate, and realize pipeline smooth-going, eliminate mistake and the error of manual measurement, ensure that bellows qualification rate;
2, it is according to a bellows linear segmentation setting-out and welding sizing on Bench mould support, for reusing, can avoid each single-piece setting-out, thus save artificial, improve production efficiency;
3, bellows and plain bars can install sequencing according to actual conditions adjustment, solve the mutual Relationship Between Vessels in intensive steel mesh reinforcement preferably;
4, bellows in Bench mould support and cage of reinforcement install simultaneously, the work in cage of reinforcement all once completes, and realize once hang immigration mould.Remove the drawback that secondary installs bellows again in intensive reinforcing bar from.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and manual just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (1)
1. a bellows accurate positioning device, is characterized in that: it comprises case beam steel Bench mould support (1), top latch bar (2), montant (3), web distribution reinforcement positioning bar (4), bellows positioning steel tube (5) and removable pin (6); The upper lateral of case beam steel Bench mould support (1) is evenly provided with several top latch bar (2), the both sides of case beam steel Bench mould support (1) are evenly provided with several montant (3), the side of each montant (3) is evenly provided with several web distribution reinforcement positioning bar (4), the opposite side of montant (3) is provided with several bellows positioning steel tube (5), the inside of bellows positioning steel tube (5) is plugged with removable pin (6), and bellows (7) is placed on removable pin (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310632234.3A CN104675023B (en) | 2013-11-29 | 2013-11-29 | A kind of bellows accurate positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310632234.3A CN104675023B (en) | 2013-11-29 | 2013-11-29 | A kind of bellows accurate positioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104675023A true CN104675023A (en) | 2015-06-03 |
| CN104675023B CN104675023B (en) | 2017-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310632234.3A Expired - Fee Related CN104675023B (en) | 2013-11-29 | 2013-11-29 | A kind of bellows accurate positioning device |
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| Country | Link |
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| CN (1) | CN104675023B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648987A (en) * | 2016-03-23 | 2016-06-08 | 河南省水利勘测设计研究有限公司 | Bidirectional pre-stress U-shaped aqueduct corrugated pipe positioning mesh structure |
| CN108457171A (en) * | 2017-12-25 | 2018-08-28 | 上海公路投资建设发展有限公司 | Steel grouting bellows and its production method for precast assembly bridge pier |
| CN114808729A (en) * | 2022-05-16 | 2022-07-29 | 中铁七局集团有限公司 | Positioning device for pre-buried prestressed corrugated pipe in box girder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1054106A2 (en) * | 1999-05-17 | 2000-11-22 | Anderson Technology Corporation | Box girder structure for bridge provided with outer cable and method of building the box girder |
| KR20020088472A (en) * | 2001-05-17 | 2002-11-29 | 브이에스엘코리아 주식회사 | construction method of composite steel box bridge |
| CN202627539U (en) * | 2012-04-29 | 2012-12-26 | 葛洲坝集团第五工程有限公司 | Precise positioner for prestressed concrete corrugated pipe |
| CN203613729U (en) * | 2013-11-29 | 2014-05-28 | 甘肃路桥建设集团有限公司 | Corrugated pipe accurate positioning device |
-
2013
- 2013-11-29 CN CN201310632234.3A patent/CN104675023B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1054106A2 (en) * | 1999-05-17 | 2000-11-22 | Anderson Technology Corporation | Box girder structure for bridge provided with outer cable and method of building the box girder |
| KR20020088472A (en) * | 2001-05-17 | 2002-11-29 | 브이에스엘코리아 주식회사 | construction method of composite steel box bridge |
| CN202627539U (en) * | 2012-04-29 | 2012-12-26 | 葛洲坝集团第五工程有限公司 | Precise positioner for prestressed concrete corrugated pipe |
| CN203613729U (en) * | 2013-11-29 | 2014-05-28 | 甘肃路桥建设集团有限公司 | Corrugated pipe accurate positioning device |
Non-Patent Citations (1)
| Title |
|---|
| 刘宏伟等: "预制箱梁‘四化’施工技术应用研究", 《公路交通科技（应用技术版）》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648987A (en) * | 2016-03-23 | 2016-06-08 | 河南省水利勘测设计研究有限公司 | Bidirectional pre-stress U-shaped aqueduct corrugated pipe positioning mesh structure |
| CN108457171A (en) * | 2017-12-25 | 2018-08-28 | 上海公路投资建设发展有限公司 | Steel grouting bellows and its production method for precast assembly bridge pier |
| CN114808729A (en) * | 2022-05-16 | 2022-07-29 | 中铁七局集团有限公司 | Positioning device for pre-buried prestressed corrugated pipe in box girder |
| CN114808729B (en) * | 2022-05-16 | 2023-06-02 | 中铁七局集团有限公司 | Positioning device for pre-buried pre-stress corrugated pipe in box girder |
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| Publication number | Publication date |
|---|---|
| CN104675023B (en) | 2017-08-04 |
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