CN103233431B - Reinforced culvert - Google Patents
Reinforced culvert Download PDFInfo
- Publication number
- CN103233431B CN103233431B CN201310131055.1A CN201310131055A CN103233431B CN 103233431 B CN103233431 B CN 103233431B CN 201310131055 A CN201310131055 A CN 201310131055A CN 103233431 B CN103233431 B CN 103233431B
- Authority
- CN
- China
- Prior art keywords
- culvert
- corrugated steel
- reinforcement type
- concrete
- sidewall
- Prior art date
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 52
- 239000010959 steel Substances 0.000 claims abstract description 52
- 239000010410 layers Substances 0.000 claims abstract description 15
- 230000002787 reinforcement Effects 0.000 claims description 22
- 230000003014 reinforcing Effects 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 4
- 238000005246 galvanizing Methods 0.000 claims description 3
- 239000002356 single layers Substances 0.000 abstract 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 materials Substances 0.000 description 4
- 238000005516 engineering processes Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008264 clouds Substances 0.000 description 1
- 239000000412 dendrimers Substances 0.000 description 1
- 229920000736 dendritic polymer Polymers 0.000 description 1
- 238000010586 diagrams Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005755 formation reactions Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000002335 preservative Effects 0.000 description 1
- 239000003755 preservative agents Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000758 substrates Substances 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
Abstract
Description
Technical field
The present invention relates to a kind of culvert, particularly relate to a kind of reinforcement type culvert.
Background technology
In recent years, along with the development of infrastructure, new highway also gets more and more.Wherein, mountain highway is many through high and steep mountains, the complicated landform of ravines and guillies criss-cross, and the phenomenon of roadbed high embankment is inevitable, and therefore the high roadbed phenomenon of culvert can hardly be avoided.Box culvert in high roadbed location and slab culvert are larger because containing top earthing, and designer is difficult to the geological condition understanding culvert substrate all sidedly when culvert design, if constructor does not have in strict accordance with the operation of reasonable construction engineering method in work progress, will cause culvert in building course or damage has just appearred in the use initial stage, such as, occur the bending tensile crack etc. under load action.Several ten thousand yuan at least, culvert, unit up to a million, reforms if done over again at most, and the economic loss caused is self-evident, so need occurring that the culvert of defect is reinforced.Tradition culvert reinforcement means has embedded box-structure method, Enlargement of Section and Removing Columns method etc., and wherein, embedded box-structure method is on the basis of culvert original structure, set up steel bar concrete box braced structures; Enlargement of Section builds same material members in the inside of former culvert to improve culvert bearing capacity; Removing Columns method is the comprehensive technology means of implementing to remove substructure when not removing superstructure; These reinforcement means use the circulation material of having withdrawn executing man-hour requirement, and construction is inconvenient, and long construction period, when strenthening member does not reach intensity, must not construct in culvert top, has a strong impact on the duration.
Summary of the invention
Goal of the invention: the reinforcement type culvert that the object of this invention is to provide a kind of easy construction, short construction period.
Technical scheme: reinforcement type culvert of the present invention, comprise top, hole and sidewall, at the prestressing force top board that hole top/bottom part establishes the double-deck corrugated steel fastened by symmetry to form, respectively establish individual layer corrugated steel in left and right inside sidewalls, mounting of roof plate on the individual layer corrugated steel of sidewall, wherein, in the cavity cylinder that double-deck corrugated steel is formed, reinforcing bar is set, and fill concrete, meanwhile, fill concrete between top, hole and prestressing force top board, between left and right sidewall and individual layer corrugated steel.
Wherein, described reinforcing bar is finish rolling deformed bar, with sheath, also can replace with the reinforcing bar of TBE (threaded both ends).Described individual layer corrugated steel is connected with sidewall by expansion bolt.The upper strata steel plate of described double-deck corrugated steel and lower floor's steel plate are fastened by corrosion-resistant galvanizing bolt symmetry.Described concrete label is greater than or equal to C40.Described concrete is slightly expanded concrete.Described top board is located on the individual layer corrugated steel of sidewall by simple beam.
Steel plate is inherently provided with great second moment of area after formation bellows-shaped, and compressive strength is greatly improved, thus greatly reduces rolled steel dosage; The double-deck corrugated steel fastened by high-strength anti-corrosion bolt connected symmetrical dendrimer and fill concrete, can be limited the waveform unstability of corrugated sheet, decrease the thickness of corrugated steel, save steel; Due to the constraint of corrugated steel and the prestressing force of finish rolling deformed bar, the concrete of filling in cavity cylinder is made to be in the high strength stable state of X, Y, Z three dimension stress, and the symmetrical corrugated steel fastened plays longitudinal reinforcement, horizontal cuff and construction formwork three effect simultaneously, limit the unstability of concrete column, greatly reduce the consumption of plain concrete, cost-saving, do not need numerous and diverse assembling reinforcement operation, the reduction of erection time; So make culvert strenthening member prestressing force top board.According to different requirements, the prestress value of finish rolling reinforcing bar is adjustable, the condition meeting bearing capacity reduces strenthening member size, makes former culvert cross section minimization of loss.The bottom tensile stress of top board, bears primarily of finish rolling deformed bar and lower corrugation steel plate, and the load on the top of top board, bear primarily of concrete and upper corrugation steel plate.
Beneficial effect: the present invention compared with prior art, its remarkable advantage is that the structural system of this culvert is equivalent on the basis of former culvert, set up a corrugated steel braced structures, the continuation in crack is prevented to develop, the internal forces distribution of former culvert structure is reduced greatly, make full use of original structure again simultaneously, the basis not changing former culvert using function ensure that the jointly stressed of the old and new's structure; This rigidity supporting structure and top board considerably increase its second moment of area with the waveform configuration of the corrugated steel be located on sidewall, improve the compressive strength of steel plate; This corrugated steel can multi-disc, more piece assembled, can all be prefabricated in the factory, also corrugated cardboard sheet can be transported to on-the-spot after prefabricated, easy construction is simple, short construction period; Corrugated cardboard sheet can standardized production, utilizes the production and processing of production line formula and the preservative treatment of production line formula, greatly reduces manufacturing cost; In addition, the stackable transport of corrugated cardboard sheet, occupies space little, substantially increases capacity and cloud amount, reduces cost of transportation, and solves long-distance transport or remote districts or have the road conditions transfinited to the transport restrictions of super large part goods and materials; Make full use of finish rolling prestressed reinforcement, corrugated steel and concrete advantage, and three is interacted dexterously; So obtained rigid support does not need to use the circulation material of having withdrawn, and could implement, can not delay the duration after not needing the sedimentation and deformation of culvert by the time to terminate completely yet.
Accompanying drawing explanation
Fig. 1 is the structural representation of reinforcement type culvert of the present invention.
Fig. 2 is the A-A sectional view of reinforcement type culvert of the present invention.
Fig. 3 is the B-B sectional view of reinforcement type culvert of the present invention.
Fig. 4 is the C node enlarged diagram of reinforcement type culvert of the present invention.
Detailed description of the invention:
As shown in figures 1-4, in factory, select the hot rolled steel plate of Q345 or higher level to be processed into standard compliant corrugated steel by drawing in advance, lower floor's corrugated steel is put into the finish rolling deformed bar 5 of band sheath, its tensile strength should be greater than 830Mpa, yield strength should be greater than 730Mpa, after checking that each component locations is accurate, upper strata corrugated steel to be buckled on lower floor's corrugated steel and to tighten corrosion-resistant galvanizing bolt 6, several cavity cylinder is formed like this between two-layer corrugated steel, the thickness of cylinder is generally more than 220mm, namely two-layer corrugated steel wave crest is to the distance of wave crest, the namely twice of corrugated steel wave height, the pitch of waves of ripple is generally greater than 600mm, build in cavity cylinder as expansive concrete, when band concrete has a respective strengths, stretch-draw finish rolling deformed bar 5 obtains prestressing force top board 3.Culvert sidewall 2 is holed, and be fixed on former culvert sidewall 2 by individual layer corrugated steel 4 with expansion bolt 7, expansion bolt quantity draws according to mechanical calculation.Concreting between sidewall 2 and corrugated steel 4.Assembled, that stretch-draw is good prestressing force top board 3 is erected on the corrugated steel 4 on sidewall, builds as expansive concrete 8 between prestressing force top board 3 and former culvert hole push up 1.Due to prestressing force top board 3 assemble fast, construction technology is simple, is applicable to various types of culvert, such as pipe culvert, arch culvert, slab culvert and box culvert etc.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201310131055.1A CN103233431B (en) | 2013-04-15 | 2013-04-15 | Reinforced culvert |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310131055.1A CN103233431B (en) | 2013-04-15 | 2013-04-15 | Reinforced culvert |
Publications (2)
Publication Number | Publication Date |
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CN103233431A CN103233431A (en) | 2013-08-07 |
CN103233431B true CN103233431B (en) | 2015-06-10 |
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Family Applications (1)
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CN201310131055.1A CN103233431B (en) | 2013-04-15 | 2013-04-15 | Reinforced culvert |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103741607B (en) * | 2014-01-02 | 2016-01-20 | 中铁工程设计咨询集团有限公司 | The reinforcement means of large span frame bridge and the large span frame bridge after reinforcing |
CN105507170A (en) * | 2015-11-30 | 2016-04-20 | 中国神华能源股份有限公司 | Reinforced concrete slab culvert reinforcement method |
CN105442462A (en) * | 2015-11-30 | 2016-03-30 | 中国神华能源股份有限公司 | Reinforcing method of reinforced concrete frame-shaped structure |
CN105672147B (en) * | 2015-12-31 | 2018-07-24 | 长安大学 | The method that highway pipe culvert is reinforced using HDPE winding reinforcing pipes and cement mortar |
CN105625201B (en) * | 2015-12-31 | 2018-02-02 | 长安大学 | A kind of method that culvert is reinforced using inflatable inner mould and self-compacting concrete |
CN109137764B (en) * | 2018-07-24 | 2020-09-29 | 华东交通大学 | Prefabricated assembly device for rapidly improving bearing capacity of culvert and culvert reinforcing method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4141666A (en) * | 1978-02-16 | 1979-02-27 | Kaiser Aluminum & Chemical Corporation | Low headroom culvert |
US4318635A (en) * | 1980-07-07 | 1982-03-09 | Bethlehem Steel Corporation | Culvert structure having corrugated ribbing support |
WO1994020685A1 (en) * | 1993-03-04 | 1994-09-15 | Wilson Michael W | Reinforced metal box culvert |
CN202463047U (en) * | 2012-03-02 | 2012-10-03 | 南京联众建设工程技术有限公司 | Laminated plastic-coated corrugated steel plate |
CN202809501U (en) * | 2012-09-05 | 2013-03-20 | 华中科技大学 | Reinforced load reducing structure of motorway high filling culvert in mountainous area |
-
2013
- 2013-04-15 CN CN201310131055.1A patent/CN103233431B/en active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4141666A (en) * | 1978-02-16 | 1979-02-27 | Kaiser Aluminum & Chemical Corporation | Low headroom culvert |
US4318635A (en) * | 1980-07-07 | 1982-03-09 | Bethlehem Steel Corporation | Culvert structure having corrugated ribbing support |
WO1994020685A1 (en) * | 1993-03-04 | 1994-09-15 | Wilson Michael W | Reinforced metal box culvert |
CN202463047U (en) * | 2012-03-02 | 2012-10-03 | 南京联众建设工程技术有限公司 | Laminated plastic-coated corrugated steel plate |
CN202809501U (en) * | 2012-09-05 | 2013-03-20 | 华中科技大学 | Reinforced load reducing structure of motorway high filling culvert in mountainous area |
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CN103233431A (en) | 2013-08-07 |
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