CN102912720A - Induced crack structure of frame bridge - Google Patents
Induced crack structure of frame bridge Download PDFInfo
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- CN102912720A CN102912720A CN2012103934837A CN201210393483A CN102912720A CN 102912720 A CN102912720 A CN 102912720A CN 2012103934837 A CN2012103934837 A CN 2012103934837A CN 201210393483 A CN201210393483 A CN 201210393483A CN 102912720 A CN102912720 A CN 102912720A
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Abstract
The invention discloses an induced crack structure of a frame bridge, which is an induced crack structure arranged in a frame bridge and used for improving stress cracks in concrete of a long box jacking frame and a water seepage phenomenon at joints of frame sections, and belongs to the technical field of jacking construction. The induced crack structure comprises an induced crack arranged in the frame bridge, a crack filling plate (7) is arranged in the induced crack, a plurality of steel shear pins (5) arranged along the length direction of a frame are arranged in side walls on both sides of the frame at the induced crack along the height direction of the frame at a certain interval, the steel shear pins (5) pass through the crack filling plate (7), and the outer side of a top plate of the induced joint, the outer sides of the side walls on both sides of the frame and the inner side of the frame are respectively provided with a waterproof layer. The induced crack structure disclosed by the invention is simple in structure, and can effectively improve a phenomenon that a concrete frame structure has more cracks under the influence of concrete stress, therefore, the accumulative jacking deviation generated by the multiple jacking of a multi-section frame is greatly reduced, and the project quality is improved, meanwhile, the construction period can be greatly shortened, and the construction cost can be reduced.
Description
Technical field
The present invention relates to a kind of frame bridge and induce crack structure, specifically a kind of crack structure of inducing that improves long box-body jacking frame concrete stress crack and framework joint seam crossing infiltration phenomenon in the frame bridge that is arranged on belongs to the Construction Technology of With standing Operation field.
Background technology
During the framework jacking construction, if the jacking lengths of frame is long, normally minute more piece is taked the jacking of relay well method after prefabricated, needs the long construction period like this, and the jacking number of times increase after then the jacking Accumulated deviation increase; Perhaps adopt framework whole elongated prefabricated, though can shorten the construction period like this, frame construction can occur than multiple cracking because of the concrete stress impact, and quality can not guarantee.Established settlement joint together every about 5～10m on framework, though can improve structural cracks like this, it is bad that framework saves the seam crossing stagnant water effect, can't thoroughly solve seepy question in the past, of long duration the phenomenon that seeps water will occur.
Summary of the invention
For the defects that exists in the prior art, the invention provides a kind of frame bridge and induce crack structure, effectively solution framework divides that the multistage prefabricated construction is long in time limit, repeatedly jacking causes the jacking Accumulated deviation to increase, problem than multiple cracking, framework joint joint seal weak effect can occur because of the concrete stress impact.
The present invention is achieved by the following technical solution: a kind of frame bridge is induced crack structure, it comprises the seam of inducing that is arranged in the frame bridge, described inducing is provided with joint filling board in the seam, being interval with some steel along the setting of lengths of frame direction along the frame height direction within the walls at described framework dual-side of inducing the seam place cuts off, described steel cuts off and passes described joint filling board, is respectively equipped with waterproofing course in the described inboard of the top board outside, the both sides abutment wall outside and the framework of the framework at seam place of inducing.
Among the present invention, be located at steel in the seam and cut off and can guarantee that framework induces the stability of crack structure in jacking, and the vertical shear strain of controlled framework bridge, the design of waterproofing course can effectively guarantee to induce seam water-tight.Frame bridge can effectively prevent the crack that occurs because of the concrete stress impact by the above-mentioned crack structure of inducing is set.
In order to improve the stagnant water effect of inducing the seam place, the described outside of inducing seam to be in the framework reinforcing bar also is embedded with along inducing the seam place to form the steel limit waterstop of closed loop, is embedded with in the frame concrete at described seam guide place along inducing the seam place to form the rubber fastening band of closed loop.
Further scheme is, described steel limit waterstop is GSE5 section steel edge waterstop, and described rubber fastening band is GRE7 type rubber fastening band.
In order to improve waterproof effect, described waterproofing course is included in the top board outside of framework and polyurethane water-proof paint layer and the Chlorinated polyethylene plastic sheets for waterproofing layer that the abutment wall outside in both sides sets gradually from the inside to the outside, and the M1500 waterproof agent layer of brushing in the inboard of framework.
It is that the ferule of 30mm and round steel that diameter is φ 28mm consist of that described steel cuts off by internal diameter, and described round steel is inserted in the described ferule, is filled with the pitch ointment in the described ferule.
Described joint filling board is to be fixedly installed on the hard wood particle board of inducing seam middle.
The setting space that described steel cuts off is 20cm.
The invention has the beneficial effects as follows: the present invention is simple in structure, simple to operate, it is arranged in the framework, effectively improved frame construction because being subjected to concrete stress to affect the more cracky phenomenon of appearance, greatly reduced the accumulative total jacking deviation that multi-section frame gradation jacking produces, improved workmanship, and reduction of erection time greatly, reducing construction cost.
Description of drawings
Fig. 1 is the structural representation in the embodiment of the invention 1;
Fig. 2 is the A-A schematic diagram among Fig. 1;
Fig. 3 is the C section enlarged diagram among Fig. 1;
Fig. 4 is the structural representation in the embodiment of the invention 2;
Fig. 5 is the D-D schematic diagram among Fig. 4;
Fig. 6 is the B section enlarged diagram among Fig. 4;
Among the figure: 1, Chlorinated polyethylene plastic sheets for waterproofing layer, 2, the polyurethane water-proof paint layer, 3, steel limit waterstop, 4, rubber fastening band, 5, steel cuts off, 6, the waterproof agent layer, 7, joint filling board, 8, ferule, 9, the pitch ointment, 10, round steel, 11, the framework body.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing:
Shown in accompanying drawing 1-3, a kind of frame bridge is induced crack structure, induce seam to be arranged in the framework, described inducing is provided with joint filling board 7 in the seam, be interval with some steel along the setting of lengths of frame direction along the frame height direction within the walls at described framework dual-side of inducing the seam place and cut off 5, it is that the ferule 8 of 30mm and round steel 10 that diameter is φ 28mm consist of by internal diameter that steel cuts off 5, round steel 10 passes joint filling board 7 and is inserted in the ferule 8, the other end of ferule 8 is blind end, be filled with pitch ointment 9 in it, the non-blind end of ferule 8 is surperficial concordant with joint filling board 7.The described outside of inducing seam to be in the framework reinforcing bar also is embedded with along inducing the seam place to form the steel limit waterstop 3 of closed loop, is embedded with in the frame concrete at described seam guide place along inducing the seam place to form the rubber fastening band 4 of closed loop.Steel limit waterstop 3 in the present embodiment is GSE5 section steel edge waterstop, and rubber fastening band 4 is GRE7 type rubber fastening band.The top board outside and the both sides abutment wall outside at framework are disposed with polyurethane water-proof paint layer 2 and Chlorinated polyethylene plastic sheets for waterproofing layer 1 from the inside to the outside, are coated with in the inboard of framework and are brushed with M1500 waterproof agent layer 6.
In the present embodiment, it is 20cm that steel cuts off 5 setting space, and joint filling board 7 is the hard wood particle board, and the thickness of joint filling board 7 is 2cm.
The crack structure of inducing of present embodiment is applicable to not be with the framework of settlement joint, is mainly used in arranging in the jacking framework.
In the prefabricated process of framework, during colligation chassis base reinforcing bar, bury GSE5 section steel edge waterstop 3 and GRE7 type rubber fastening band 4 and joint filling board 7 underground, build underplate concrete, then at colligation framework abutment wall, bury first successively GRE7 type rubber fastening band 4 in the top board reinforcing bar process underground, install joint filling board 7, all fix with indented bars for two kinds, burying ferule 8 and round steel 10 underground forms steel and cuts off 5 again, steel cuts off 5 and passes joint filling board 7, treat the framework abutment wall, the top board reinforcing bar binding is complete, be welded and fixed GSE5 section steel edge waterstop 3 at the framework steel mesh reinforcement, concreting, rear at the framework abutment wall until frame concrete curing time end at last, the outer concrete surface of top board is brushed first two-layer polyurethane water-proof paint, re-lay Chlorinated polyethylene plastic sheets for waterproofing, and in framework, induce seam place concrete surface brushing M1500 waterproof agent.
GSE5 section steel edge waterstop and GRE7 type rubber fastening band are arranged on around the framework, with reinforcing bar laterally, vertical fixing, make it when concreting, affect the sealing effect after unlikely displacement or the distortion; Steel cuts off and is arranged on abutment wall place, framework both sides, and spot welding is fixed on the framework reinforcing bar; Before joint filling board uses as required size be sawn into two boards, cut off the position at steel and get the hole, spelling uses, and needs be fixed on the framework reinforcing bar with reinforcing bar, guarantees that when concreting it is not shifted.
The present invention has improved the lower crack that produces of inside configuration concrete stress impact by establishing " seam ", cuts off and has guaranteed that framework induces the stability of crack structure in jacking by establishing waterstop, steel in " seam ", and it is water-tight to guarantee again to save seam crossing at framework.
Other parts in the present embodiment adopt prior art, do not repeat them here.
Shown in accompanying drawing 4-6, present embodiment is substantially the same manner as Example 1, and difference is not establish steel limit waterstop and rubber fastening band in the present embodiment.It comprises the seam of inducing that is arranged in the frame bridge, and described inducing is provided with joint filling board 7 in the seam.Be interval with some steel along the setting of lengths of frame direction along the frame height direction within the walls at described framework dual-side of inducing the seam place and cut off 5, it is that the ferule 8 of 30mm and round steel 10 that diameter is φ 28mm consist of by internal diameter that steel cuts off 5, round steel 10 passes joint filling board 7 and is inserted in the ferule 8, the other end of ferule 8 is blind end, be filled with pitch ointment 9 in it, the non-blind end of ferule 8 is surperficial concordant with joint filling board 7.The top board outside and the both sides abutment wall outside at framework are disposed with polyurethane water-proof paint layer 2 and Chlorinated polyethylene plastic sheets for waterproofing layer 1 from the inside to the outside, are coated with in the inboard of framework and are brushed with M1500 waterproof agent layer 6.
In the present embodiment, joint filling board 7 is the hard wood particle board, and the thickness of joint filling board 7 is 2cm.
Other parts in the present embodiment adopt prior art, do not repeat them here.
The crack structure of inducing of present embodiment is applicable to framework with settlement joint, mainly be in place for the jacking framework after and the seam crossing between cast-in-place framework.
Claims (7)
1. a frame bridge is induced crack structure, it is characterized in that: comprise the seam of inducing that is arranged in the frame bridge, described inducing is provided with joint filling board (7) in the seam, be interval with some steel along the setting of lengths of frame direction along the frame height direction within the walls at described framework dual-side of inducing the seam place and cut off (5), described steel cuts off (5) and passes described joint filling board (7), is respectively equipped with waterproofing course in the described inboard of the top board outside, the both sides abutment wall outside and the framework of the framework at seam place of inducing.
2. frame bridge according to claim 1 is induced crack structure, it is characterized in that: the described outside of inducing seam to be in the framework reinforcing bar also is embedded with along inducing the seam place to form the steel limit waterstop (3) of closed loop, is embedded with in the frame concrete at described seam guide place along inducing the seam place to form the rubber fastening band (4) of closed loop.
3. frame bridge according to claim 2 is induced crack structure, it is characterized in that: described steel limit waterstop (3) is GSE5 section steel edge waterstop, and described rubber fastening band (4) is GRE7 type rubber fastening band.
According to claim 1 and 2 or 3 described frame bridges induce crack structure, it is characterized in that: described waterproofing course is included in the top board outside of framework and polyurethane water-proof paint layer (2) and the Chlorinated polyethylene plastic sheets for waterproofing layer (1) that the abutment wall outside in both sides sets gradually from the inside to the outside, and the M1500 waterproof agent layer (6) of brushing in the inboard of framework.
According to claim 1 and 2 or 3 described frame bridges induce crack structure, it is characterized in that: it is that the ferule (8) of 30mm and round steel (10) that diameter is φ 28mm consist of by internal diameter that described steel cuts off (5), described round steel (10) is inserted in the described ferule (8), and described ferule is filled with the pitch ointment in (8).
According to claim 1 and 2 or 3 described frame bridges induce crack structure, it is characterized in that: described joint filling board (7) for be fixedly installed on induce the seam in the middle of the hard wood particle board.
According to claim 1 and 2 or 3 described frame bridges induce crack structure, it is characterized in that: the setting space that described steel cuts off (5) is 20cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210393483.7A CN102912720B (en) | 2012-10-16 | 2012-10-16 | A kind of frame bridge attractive joint structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210393483.7A CN102912720B (en) | 2012-10-16 | 2012-10-16 | A kind of frame bridge attractive joint structure |
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| CN102912720A true CN102912720A (en) | 2013-02-06 |
| CN102912720B CN102912720B (en) | 2015-08-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397600A (en) * | 2013-08-15 | 2013-11-20 | 中铁六局集团天津铁路建设有限公司 | Method for arranging water stops in box body jacking process |
| CN104563163A (en) * | 2014-12-16 | 2015-04-29 | 成都绿迪科技有限公司 | Induced crack used for basement outer wall |
| CN109594663A (en) * | 2018-12-29 | 2019-04-09 | 云南省建设投资控股集团有限公司 | Armored concrete for post-cast strip position induces band structure and its construction method |
| CN113774961A (en) * | 2021-06-01 | 2021-12-10 | 中国二十冶集团有限公司 | Waterproof method for underground gallery type structure jacking relay room |
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2012
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| JP2007009460A (en) * | 2005-06-29 | 2007-01-18 | Kajima Corp | Rc structure and plastic hinge section thereof |
| CN101761096A (en) * | 2009-12-14 | 2010-06-30 | 山东万鑫建设有限公司 | Anti-crack and anti-leak construction method of arranging tower crane foundation below waterproof baseplate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397600A (en) * | 2013-08-15 | 2013-11-20 | 中铁六局集团天津铁路建设有限公司 | Method for arranging water stops in box body jacking process |
| CN104563163A (en) * | 2014-12-16 | 2015-04-29 | 成都绿迪科技有限公司 | Induced crack used for basement outer wall |
| CN109594663A (en) * | 2018-12-29 | 2019-04-09 | 云南省建设投资控股集团有限公司 | Armored concrete for post-cast strip position induces band structure and its construction method |
| CN113774961A (en) * | 2021-06-01 | 2021-12-10 | 中国二十冶集团有限公司 | Waterproof method for underground gallery type structure jacking relay room |
| CN113774961B (en) * | 2021-06-01 | 2022-09-16 | 中国二十冶集团有限公司 | Waterproof method for underground gallery type structure jacking relay room |
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| CN102912720B (en) | 2015-08-26 |
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