CN103233431B - Reinforced culvert - Google Patents

Reinforced culvert Download PDF

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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
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CN
China
Prior art keywords
culvert
corrugated steel
reinforcement type
concrete
sidewall
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CN201310131055.1A
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Chinese (zh)
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CN103233431A (en
Inventor
战福军
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南京联众建设工程技术有限公司
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Priority to CN201310131055.1A priority Critical patent/CN103233431B/en
Publication of CN103233431A publication Critical patent/CN103233431A/en
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Publication of CN103233431B publication Critical patent/CN103233431B/en

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Abstract

The invention discloses a reinforced culvert. The reinforced culvert comprises a culvert top and side walls. A prestress top plate which is composed of a symmetrically fastened double-layer corrugated steel is arranged at the bottom of the culvert top, single-layer corrugated steels are arranged on the inner sides of left and right side walls, the top plate is installed on the single-layer corrugated steels of the side walls, reinforcing steel bars are arranged in a cavity cylinder formed by the double-layer corrugated steel, the cavity cylinder is filled with concrete, and simultaneously, concrete is filled between the culvert top and the prestress top plate as well as between left and right side walls and the single-layer corrugated steels. The reinforced culvert has the advantages that a corrugated steel rigid support is added on the basis of the original culvert structure, and further expansion of cracks is prevented, so that the internal force and deformation of the original culvert structure are reduced greatly, simultaneously, the original structure is fully utilized, and shared force bearing of new and old structures is guaranteed with the using function of the original culvert unchanged.

Description

A kind of reinforcement type culvert

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)

1. a reinforcement type culvert, comprise top, hole (1) and sidewall (2), it is characterized in that: the prestressing force top board (3) establishing the double-deck corrugated steel fastened by symmetry to form in Dong Ding (1) bottom, individual layer corrugated steel (4) is respectively established in left and right sidewall (2) inner side, prestressing force top board (3) is arranged on the individual layer corrugated steel (4) of sidewall, wherein, in the cavity cylinder that double-deck corrugated steel is formed, reinforcing bar (5) is set, and fill concrete, simultaneously, between Dong Ding (1) and prestressing force top board (3), fill concrete between left and right sidewall (2) and individual layer corrugated steel (4).
2. reinforcement type culvert according to claim 1, is characterized in that: described reinforcing bar (5) is finish rolling deformed bar.
3. reinforcement type culvert according to claim 1, is characterized in that: the reinforcing bar that described reinforcing bar (5) is TBE (threaded both ends).
4. the reinforcement type culvert according to claim 1,2 or 3, is characterized in that: described reinforcing bar (5) is with sheath.
5. reinforcement type culvert according to claim 1, is characterized in that: described individual layer corrugated steel (4) is connected with sidewall (2) by expansion bolt (7).
6. reinforcement type culvert according to claim 1, is characterized in that: the upper strata steel plate of described double-deck corrugated steel and lower floor's steel plate are fastened by corrosion-resistant galvanizing bolt (6) symmetry.
7. reinforcement type culvert according to claim 1, is characterized in that: described concrete label is greater than or equal to C40.
8. reinforcement type culvert according to claim 1, is characterized in that: described concrete is slightly expanded concrete.
9. reinforcement type culvert according to claim 1, is characterized in that: described prestressing force top board (3) is located on the individual layer corrugated steel (4) of sidewall by simple beam.
CN201310131055.1A 2013-04-15 2013-04-15 Reinforced culvert CN103233431B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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

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CN103233431A CN103233431A (en) 2013-08-07
CN103233431B true CN103233431B (en) 2015-06-10

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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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Address after: 211215 Zhetang Town Industrial Park, Lishui District, Nanjing City, Jiangsu Province

Patentee after: Nanjing Lianzhong Engineering Technology Co., Ltd.

Address before: 211215 No. 331 Zhening East Road, Zhetang Industrial Concentration Zone, Lishui Economic Development Zone, Nanjing City, Jiangsu Province

Patentee before: Nanjing Liantong Construction Engineering Technology Co., Ltd.

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