CN102092096B - Method for fixing pre-stressed hose of precast beam - Google Patents
Method for fixing pre-stressed hose of precast beam Download PDFInfo
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- CN102092096B CN102092096B CN201010561355XA CN201010561355A CN102092096B CN 102092096 B CN102092096 B CN 102092096B CN 201010561355X A CN201010561355X A CN 201010561355XA CN 201010561355 A CN201010561355 A CN 201010561355A CN 102092096 B CN102092096 B CN 102092096B
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- hose
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- precast beam
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- steel wire
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Abstract
The invention belongs to the technical field of laying and fixing pre-stressed steel wire bundles and hoses for precast beams in railway engineering, in particular to a method for fixing the pre-stressed hose of the precast beam, solving the problems that the pre-stressed hose of the conventional precast beam is difficult to lay and fix, and the hose which easily deviates from the designed position possibly enables the whole beam to be scrapped. The method comprises the following steps: soldering a lower positioning reinforcement bar on a bound precast beam steel reinforcement cage according to a pre-stressed steel wire bundle designing position; enabling a hose with the pre-stressed steel wire bundle to penetrating through the lower positioning reinforcement bar; and fixing the hose on the lower positioning reinforcement bar by a double-sided hooked reinforcement bar after the hose is laid to a preset position. The method has the following advantages: the hose can pass through the steel reinforcement case by a simple and quick method, accurate position of the hose is ensured, displacement of the hose during concrete pouring in later stage is avoided, construction period is saved and the quality of the precast beam is greatly improved, the operation is simple, the cost is low and the method in the invention is easy to popularize.
Description
Technical field
The invention belongs to the technical field that railway construction precast beam prestressing steel wire bunch and hose are laid and fixed, be specifically related to a kind of precast beam prestressing force hose fixing means.
Background technology
In recent years; Country strengthens the investment of railway, and railway development is rapid, and the railway engineering project increases; Be main mainly in the mountain railway engineering particularly in the railway engineering with the bridge-type roadbed; Wherein major part is a precast bridge, and at present a lot of railway constructions all will be built the precast beam field simultaneously, to guarantee the supply of the precast beam that bridge erection is required.Precast beam basically all need be laid prestressing steel wire bunch, after prestressing steel wire bunch is put in hose in advance, treat that beam is tied up muscle and finished after, penetrate into the precalculated position to the hose that has steel tendon in the lump again.
The method of laying hose at present is: on the good steel reinforcement cage of colligation, welds two bar reinforcements up and down in advance, forms the direction reinforcing steel bar frame by design attitude, and as shown in Figure 1.The from one end to the other side artificial in the lump reinforcing steel bar frame that is punctured into welded reinforcement clavate one-tenth of the hose that has steel tendon, through predetermined design position is as shown in Figure 2 then.
In the practice of construction operating process, the shortcoming of this kind method is obvious, is mainly: bar reinforcement all fixes the back and forms reinforcing steel bar frame up and down; The prestressing steel wire bunch hose is difficult to penetrate smoothly, and for this reason, often top bar reinforcement needs to move a lot; The rich size that is reinforcing steel bar frame is bigger, when treating that the later stage concrete is poured into a mould, because concrete buoyancy is added top bigger rich space is arranged; Hose and steel tendon float in the lump; The off-design position causes the not in place or stressed complicacy of later stage prestressing steel wire bunch stretch-draw, possibly cause the full wafer beam to be scrapped when serious.
Summary of the invention
The present invention lays and the fixing operation difficulty in order to solve existing prefabricated girder pre-stressed hose, and the easy off-design position of hose, and the problem that possibly cause the full wafer beam to be scrapped provides a kind of precast beam prestressing force hose fixing means.
The present invention adopts following technical scheme to realize:
A kind of precast beam prestressing force hose fixing means is characterized in that step is following:
1), welding bottom, the position spacer bar according to the prestressing steel wire bunch design is excellent earlier on the good precast beam steel reinforcement cage of colligation;
2), penetrate the hose that has prestressing steel wire bunch;
3), treat that hose is routed to the precalculated position after, be fixed on hose on the spacer bar rod of bottom with two-sided hooked bar bar, with iron wire the fixedly colligation of two-sided hooked bar bar.
The present invention has following beneficial effect: realized penetrating the hose that is installed with prestressing steel wire bunch in the steel reinforcement cage smoothly with the method for simple and fast, and can guarantee that the position of hose is accurate, hose is shifted when avoiding later stage concreting simultaneously; Both practice thrift the duration and improved the quality of precast beam simultaneously greatly; Simple to operate, with low cost, very easily promote; In current flourishing railway market especially precast beam market, economic benefit and social benefit are very considerable.
Description of drawings
The reinforcing steel bar frame sketch map that the bar reinforcement that Fig. 1 welds when laying hose for having now forms
Fig. 2 penetrates the hose sketch map of band prestressing steel wire bunch when laying hose for having now
Fig. 3 presses the sketch map of design attitude welding bottom spacer bar rod for the present invention
Fig. 4 lays the sketch map of the hose that is installed with steel tendon for the present invention
Fig. 5 is the sketch map of the present invention with two-sided hooked bar bar fixing glue leather hose
Fig. 6 is the thin portion of a Fig. 5 structural representation
Among the figure: 1-reinforcing steel bar frame, 2-hose, 3-bottom spacer bar rod, the two-sided hooked bar bar of 4-.
The specific embodiment
Be described further in conjunction with the accompanying drawing specific embodiments of the invention.
As shown in Figure 6, precast beam prestressing force hose fixture comprises according to the bottom spacer bar rod 3 of the position welding of prestressing steel wire bunch design and removable and can hose 2 be fixed in the two-sided hooked bar bar 4 on the bottom spacer bar rod 3.Two-sided hooked bar bar 4 is reinforcing rods that two ends have crotch.
The present invention is directed to the laying and the location of bridge precast beam prestressing steel wire bunch and hose, its concrete implementation method is: earlier according to welding bottom, the position spacer bar rod 3 of prestressing steel wire bunch design, as shown in Figure 3 on the good precast beam steel reinforcement cage of colligation.Then, penetrate the hose 2 that has prestressing steel wire bunch, as shown in Figure 4.Treat to be fixed on hose on the bottom spacer bar rod 3 with two-sided hooked bar bar 4 after hose 2 is routed to the precalculated position, can be as shown in Figure 5, two-sided hooked bar bar 4 is reinforcing rods that two ends have crotch, integral body is the Ω shape.
Claims (1)
1. precast beam prestressing force hose fixing means is characterized in that step is following:
1), on the good precast beam steel reinforcement cage of colligation, welds bottom spacer bar rod (3) according to the position of prestressing steel wire bunch design earlier;
2), penetrate the hose (2) that has prestressing steel wire bunch;
3), treat that hose (2) is routed to the precalculated position after; Be fixed on hose (2) on the bottom spacer bar rod (3) with two-sided hooked bar bar (4); With iron wire fixedly colligation of two-sided hooked bar bar (4); Described two-sided hooked bar bar (4) is the reinforcing rod that two ends have crotch, and integral body is the Ω shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010561355XA CN102092096B (en) | 2010-11-27 | 2010-11-27 | Method for fixing pre-stressed hose of precast beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010561355XA CN102092096B (en) | 2010-11-27 | 2010-11-27 | Method for fixing pre-stressed hose of precast beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102092096A CN102092096A (en) | 2011-06-15 |
| CN102092096B true CN102092096B (en) | 2012-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010561355XA Active CN102092096B (en) | 2010-11-27 | 2010-11-27 | Method for fixing pre-stressed hose of precast beam |
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| Country | Link |
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| CN (1) | CN102092096B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015326B (en) * | 2012-12-28 | 2016-04-20 | 中铁二十四局集团有限公司 | A kind ofly automatically wear rubber tube machine and the application process in case beam steel cage thereof |
| CN107297811B (en) * | 2017-08-25 | 2023-08-01 | 南京钜砼建筑工业技术研究所有限公司 | Method for manufacturing concrete by using arch member prestress applying device |
| CN109162206A (en) * | 2018-10-30 | 2019-01-08 | 中国十七冶集团有限公司 | A kind of constructing structure and its construction method of cast-in-situ box girder prestressed strand |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100705367B1 (en) * | 2006-02-24 | 2007-04-12 | (주)내경엔지니어링 | Prestressed concrete corrugated steel plate composition type slab bridge and the construction method of this |
| CN101413323B (en) * | 2008-11-25 | 2010-08-04 | 中铁大桥局集团第五工程有限公司 | Method for preparing and preventing plug of wide-span case beam rear tension method prestress pore passage |
| CN201301520Y (en) * | 2008-11-25 | 2009-09-02 | 浙江省交通工程建设集团有限公司 | Prestressed beam drilling bellow positioning reinforced net |
| CN101596744B (en) * | 2009-07-06 | 2011-05-11 | 中冶建工有限公司 | Method for binding and mounting continuous stirrups of post-tensioned prestressed reinforced concrete box girder |
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- 2010-11-27 CN CN201010561355XA patent/CN102092096B/en active Active
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| Publication number | Publication date |
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| CN102092096A (en) | 2011-06-15 |
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