CN113152317A - Prefabricated culvert component and road and bridge culvert structure using same - Google Patents
Prefabricated culvert component and road and bridge culvert structure using same Download PDFInfo
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- CN113152317A CN113152317A CN202110433188.9A CN202110433188A CN113152317A CN 113152317 A CN113152317 A CN 113152317A CN 202110433188 A CN202110433188 A CN 202110433188A CN 113152317 A CN113152317 A CN 113152317A
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- culvert
- prefabricated
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- shaped
- flat plate
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
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Abstract
The invention discloses a prefabricated culvert component and a road and bridge culvert structure using the same, and provides a culvert structure with excellent comprehensive performance. The prefabricated culvert component is a D-shaped prefabricated component formed by integrally prefabricating and forming a reinforcing steel bar grid and concrete, the whole arc-shaped structure of the arc-shaped part is more than or equal to 180 degrees, the wall thickness is uniform, two ends of the arc-shaped part are provided with secondary grouting areas, lap-joint reinforcing steel bars extending from the reinforcing steel bar grid are reserved in the secondary grouting areas, a drainage channel is arranged in the transition part along the depth direction of the culvert, the bottom of the drainage channel is lower than the road surface height of the culvert after asphalt pavement is paved, and at least one drainage hole is formed between the drainage channel and the inside of the culvert. The culvert member is connected at two ends through secondary mortar, can be quickly assembled and constructed at the ready state, and can effectively prevent water seepage.
Description
Technical Field
The invention relates to the technical field of civil engineering construction, in particular to a culvert prefabricated component used in road and bridge engineering.
Background
Culvert engineering, which is usually found in highways, railways and other engineering, mainly aims to form a through culvert which can be passed by vehicles or pedestrians at a roadbed by means of underpass.
As for the culvert forming process, there are currently a field wet working method and an assembly type construction method. In the wet-type operation method, the reinforcement cage is bound on site, and then concrete is poured by a pump truck, so that the construction efficiency is low due to the procedures of formwork support and the like. The assembly type construction method adopts the operation modes of factory prefabrication and field hoisting construction to carry out assembly type construction, has the characteristic of high construction efficiency, and is a main method for road and bridge construction at present.
The applicant consults a large number of patent literature techniques, and the following methods have similarity with the present application:
ZL201310192805.6 provides a large-aperture assembly type reinforced concrete culvert member, which comprises a left side wall, a right side wall and a top plate, wherein the top plate is arched, and two ends of the top plate are respectively connected with the upper ends of the left side wall and the right side wall to form a culvert unit. The reinforced concrete members are formed by the top plate, the left side wall and the right side wall, and the plurality of reinforced concrete members are sequentially arranged and installed, so that the large-sized reinforced concrete culvert can be assembled by splitting the reinforced concrete members into modularized reinforced concrete members. The hoisting device has the advantages that the hoisting work weight is reduced, and the defects that the field construction requirement technology is high, especially the quality requirement on field construction workers is high, and the hoisting device does not accord with the construction current situation.
Disclosed in CN 203393642U is a precast concrete culvert package assembly, including a plurality of assembled culvert section, the prestressing steel bar, bellows and rectangular channel, evenly set up the rectangular channel along inner wall circumference in the intermediate position of assembled culvert section, set up the through-hole along the axis direction of assembled culvert section, the bellows sets up in the through-hole, set up the prestressing steel bar in the bellows, two adjacent assembled culvert sections rigid couplings, the prestressing steel bar passes two adjacent assembled culvert sections, adjacent prestressing steel bar connects through the prestressing steel bar connecting piece in the rectangular channel.
While the above-described techniques represent only two types of culvert members, the present invention provides a culvert assembly having superior overall performance.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a prefabricated culvert member and a culvert structure using the same, which are used for solving the problems that the existing culvert structure is single in structure and does not have a drainage channel.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the prefabricated culvert component comprises a prefabricated component body, the prefabricated component body is a prefabricated component which is integrally prefabricated and formed by reinforcing steel bar grids and concrete and has a D-shaped section, and is characterized in that the prefabricated component body comprises an arc-shaped part, a flat plate part and a transition part for connecting the two parts, wherein,
the whole arc part is of an arc structure with the angle more than or equal to 180 degrees, the wall thickness is uniform, two ends of the arc part are provided with secondary grouting areas, and lap joint reinforcing steel bars extending from the reinforcing steel bar grids are reserved in the secondary grouting areas,
the flat plate part is positioned below the arc-shaped part, and the flat plate part is connected with the arc-shaped part through a transition part;
the transition portion is internally provided with a drainage channel arranged along the depth direction of the culvert, the bottom of the drainage channel is lower than the height of a road surface of the culvert after the asphalt road surface is paved, and at least one drainage hole is arranged between the drainage channel and the inside of the culvert.
The transition part is T-shaped, and the drainage channel is arranged in the middle.
And hoisting rings are respectively arranged at four corners of the prefabricated part body.
The two ends of the flat plate part are provided with a groove and an overlap joint reinforcing steel bar for secondary grouting, and the groove extends to the transition parts at the two sides.
The molding height of the secondary grouting area between the two is slightly higher than the outer surface of the arc-shaped part, so that the connection strength is slightly higher than that of the arc-shaped part. The strength described herein includes stiffness as well as torsional strength.
The embodiment is suitable for the construction engineering of the underpass culvert such as a high speed, a railway and the like.
The construction is convenient and quick through the lifting of the lifting hook.
The butt joint surface of the prefabricated part body is provided with a positioning bulge and a groove.
The culvert structure using the member is a culvert body formed by continuously laying a plurality of prefabricated culvert members with the same structure along the depth direction of the culvert, and performing secondary grouting connection between the adjacent prefabricated culvert members, the prefabricated culvert members are prefabricated and molded by reinforcing steel bar grids and concrete into a whole, the section of each prefabricated culvert member is D-shaped, the culvert structure is characterized by comprising an arc-shaped part, a flat plate part and a transition part for connecting the two parts, wherein,
the whole arc-shaped part is of an arc structure with the angle of more than or equal to 180 degrees, the wall thickness is uniform, two ends of the arc-shaped part are provided with secondary grouting areas, lap-jointed reinforcing steel bars extending from reinforcing steel bar grids are reserved in the secondary grouting areas, concrete is poured in the secondary grouting areas, and secondary connection is formed after simple floating, curing and hardening;
the flat plate part is positioned below the arc-shaped part, and the flat plate part is connected with the arc-shaped part through a transition part;
the transition portion is internally provided with a drainage channel arranged along the depth direction of the culvert, the bottom of the drainage channel is lower than the height of a road surface of the culvert after the asphalt road surface is paved, and at least one drainage hole is arranged between the drainage channel and the inside of the culvert.
According to the needs, the waterproof coiled material can be used for waterproof treatment at the splicing seams of the two, so that the waterproof effect between the two is improved.
After the construction is finished, continuous asphalt pavement is paved in the culvert to form a continuous and jump-free pavement.
And bosses of the non-motor vehicles are laid on two sides of the culvert.
The invention has the beneficial effects that:
1. the culvert component can be prefabricated in a factory, and provides technical support for the assembly type construction of highway engineering.
2. The culvert member is connected at two ends through secondary mortar, can be quickly assembled and constructed at the ready state, and can effectively prevent water seepage.
3. The technology gives consideration to both construction convenience and water and seepage resistance, and is a culvert structure with excellent comprehensive performance.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Figure 2 is a perspective view of a single culvert member.
Fig. 3 is a side view of fig. 2.
Fig. 4 is a front view of fig. 2.
Fig. 5 is a sectional view taken along line a-a in fig. 4.
Figure 6 is a combined state view of two culvert members.
Fig. 7 is a secondary grout joint.
Figure 8 is a perspective view of a culvert member according to a second embodiment.
Fig. 9 is a full sectional view of fig. 8.
Fig. 10 is a perspective view of a third embodiment.
In the figure: 100 of a prefabricated part, and a manufacturing method thereof,
110 arc-shaped part, 111 secondary grouting area, 112 lap joint reinforcing steel bar,
120, a flat plate part, 121 grooves,
130 transition part, 131 passage, 132 drain hole,
140 faying surface
200 of the convex plate, wherein the convex plate is arranged on the upper surface of the base plate,
300 of an asphalt pavement, wherein the asphalt pavement comprises the following components,
400 of the connection of the two-time connection,
410 the ring is hoisted by the hoisting device,
500 locate the protrusions and recesses.
Detailed Description
The reinforced concrete prefabricated culvert component is a reinforced concrete prefabricated component and is formed by factory prefabrication. In order to facilitate transportation and hoisting construction, the depth length of the culvert member is about 4 meters, and in a transportation link, the depth direction of the culvert member is the same as the transverse direction of the transportation plate trailer, namely, the culvert member is vertical to the walking direction of the vehicle.
A typical culvert member is semi-circular in cross-section, i.e., an arch-shaped configuration forming a semi-circular arc. In the case of high speed, railroad underpass culverts, the width of the culvert section is generally not less than 6 meters, for example a culvert having a span of 8 meters.
In a first embodiment, the prefabricated part 100 has a structure including
The arc-shaped part 110, the flat plate part 120 and the transition part 130 connecting the two parts, the whole arc-shaped part is an arc structure slightly larger than 180 degrees, and the arc-shaped part 110 is a reinforced concrete wall with uniform thickness. The flat plate part at the lower end is of a reinforced concrete structure with uniform thickness. The transition portion 130 is T-shaped, i.e., an inverted T-shaped structure composed of three protruding portions. The top of the transition part protrudes from the lower edge of the arc part and is connected into a whole, a horizontal protrusion of the transition part 130 is integrated with the adjacent flat plate part, and specifically, the transition part 130 is located between the arc part and the flat plate and forms a connection. The number of the arc-shaped parts and the number of the flat plate parts are one, and the number of the transition parts is two, so that transition connection is completed on the arc-shaped parts from two sides respectively.
In the above-mentioned transition 130 a channel 131 is provided, the function of which is mainly to drain the water inside the culvert, i.e. to discharge the accumulated water inside the culvert. The bottom of the channel is lower than the height of the road surface of the culvert after the asphalt pavement is paved, that is, after the channel 131 is communicated with the interior of the culvert through the drainage hole 132, the accumulated water in the culvert can be drained into the channel through the drainage hole 132, and the drainage in the culvert is finished. The drainage holes 132 are usually arranged in the transition portion in advance and are through.
Further, arc-shaped transitions are provided between the three protrusions of the transition portion 130, but the bosses 200 are provided at the inner side in consideration of the arrangement of the walkways at both sides of the culvert, which are integrated therein by means of secondary prefabrication molding in a factory, and in particular, the bosses 200 at the inner side form the walkways by means of secondary stacking.
Referring to fig. 1 to 7, in the present embodiment, a secondary grouting area 111 is provided on an outer side surface of the arc portion 110, specifically, extending to the transition portion, where a pouring groove is reserved on the outer side of the arc portion, and a lap reinforcement 112 is reserved in the groove, when two prefabricated components are butted in place at a construction site, two adjacent arc portions form an integral bottom mold through an inner side edge, and a secondary connection 400 is formed through pouring concrete in the groove on the outer side, and through simple leveling, curing and hardening.
The transition part and the flat plate part are in plane contact with each other, and only mortar crack pouring treatment needs to be carried out between the transition part and the flat plate part in the construction process, so that no special construction skill is required.
According to the needs, the waterproof coiled material can be used for waterproof treatment at the splicing seams of the two, so that the waterproof effect between the two is improved.
Further, in order to ensure the connection strength of the two, the forming height of the secondary grouting area between the two is slightly higher than the outer surface of the arc-shaped part, so that the connection strength is slightly higher than the strength of the arc-shaped part. The strength described herein includes stiffness as well as torsional strength.
After the construction is completed, the continuous asphalt pavement 300 is paved in the culvert to form a continuous and jump-free pavement.
The embodiment is suitable for the construction engineering of the underpass culvert such as a high speed, a railway and the like.
For the construction hoisting work, four angular positions of this culvert component are provided with a hoisting ring 410 respectively, through the hoist and mount of lifting hook, carry out convenient, quick construction.
In the present embodiment, the overlapping surfaces of two adjacent prefabricated parts are marked with a mark 140, refer to fig. 1 to 7.
Example two
Referring to fig. 8 and 9, in the present embodiment, a portion of the flat plate portion 120 in the first embodiment is modified, in the first embodiment, the flat plate portion has a neat vertical section, and in the present embodiment, the portion is modified, or further, an excellent connection performance is formed. The inner end surface of the flat plate portion 120 is provided with a secondary grouting groove 121, and the groove extends to the transition portions 130 on both sides, further, the rib in the groove is also present, and the specific arrangement mode can refer to the arrangement structure of the rib in the first embodiment. The groove and the secondary grouting area 111 are connected with each other, that is, the groove 121 forms a secondary connection from the inner surface to the flat plate part and the transition part, and the secondary grouting area 111 performs a secondary grouting connection to the arc part, so that a perfect closure in the circumferential direction of the culvert member is formed to form a secondary connection area.
The embodiment has more excellent waterproof and leakage-proof effects.
EXAMPLE III
Referring to fig. 10, in this embodiment, a positioning structure is added to the culvert member, and in particular, a positioning protrusion and a groove 500 are added to the overlapping surface 140 of the flat plate part or the transition part of the culvert member, and the adjacent culvert members are positioned in a horizontal position by a plurality of positioning protrusions and grooves, so as to complete the connection.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the scope of the present invention, and various modifications and improvements of the present invention by those skilled in the art without departing from the spirit of the present invention are intended to fall within the scope of the present invention defined by the claims.
Claims (10)
1. The prefabricated culvert component comprises a prefabricated component body, wherein the prefabricated component body is a prefabricated component which is integrally prefabricated and formed by reinforcing steel bar grids and concrete and has a D-shaped section, and is characterized in that the prefabricated component body comprises an arc-shaped part, a flat plate part and a transition part for connecting the arc-shaped part and the flat plate part, the flat plate part is positioned below the arc-shaped part, and the flat plate part and the arc-shaped part are connected through the transition part; wherein the content of the first and second substances,
the whole arc part is of an arc structure with the angle more than or equal to 180 degrees, the wall thickness is uniform, two ends of the arc part are provided with secondary grouting areas, and lap joint reinforcing steel bars extending from the reinforcing steel bar grids are reserved in the secondary grouting areas,
the transition portion is internally provided with a drainage channel arranged along the depth direction of the culvert, the bottom of the drainage channel is lower than the height of a road surface of the culvert after the asphalt road surface is paved, and at least one drainage hole is arranged between the drainage channel and the inside of the culvert.
2. The prefabricated culvert member of claim 1, wherein the transition portion is t-shaped, and the drainage passage is centrally disposed within the transition portion.
3. The prefabricated culvert member of claim 1, wherein hoisting rings are provided at four angular positions of the prefabricated member body.
4. The prefabricated culvert member of claim 1, wherein the flat plate portion has grooves and overlapping bars for secondary grouting at both ends, and the grooves extend to the transition portions at both sides.
5. The prefabricated culvert member of claim 1, wherein the abutment surface of the prefabricated member body has a positioning protrusion and a groove.
6. The road and bridge culvert structure using the member is a cave body formed by continuously laying a plurality of prefabricated culvert members with the same structure along the depth direction of the culvert, and performing secondary grouting connection between the adjacent prefabricated culvert members, wherein the prefabricated culvert members are prefabricated members with D-shaped sections integrally formed by reinforcing steel bar grids and concrete, and are characterized in that the prefabricated culvert members comprise arc-shaped parts, flat plate parts and transition parts for connecting the two parts, the flat plate parts are positioned below the arc-shaped parts, and the flat plate parts are connected with the arc-shaped parts through the transition parts; wherein the content of the first and second substances,
the whole arc-shaped part is of an arc structure with the angle of more than or equal to 180 degrees, the wall thickness is uniform, two ends of the arc-shaped part are provided with secondary grouting areas, lap-jointed reinforcing steel bars extending from reinforcing steel bar grids are reserved in the secondary grouting areas, concrete is poured in the secondary grouting areas, and secondary connection is formed after simple floating, curing and hardening;
the transition portion is internally provided with a drainage channel arranged along the depth direction of the culvert, the bottom of the drainage channel is lower than the height of a road surface of the culvert after the asphalt road surface is paved, and at least one drainage hole is arranged between the drainage channel and the inside of the culvert.
7. The road and bridge culvert construction of claim 6, wherein waterproofing is performed using waterproofing rolls at the splice joints of two adjacent prefabricated culvert members.
8. The road and bridge culvert construction of claim 6 wherein an asphalt pavement is provided within the culvert.
9. The road and bridge culvert structure of claim 6 wherein the culvert structure is suitable for construction of high speed, railroad underpass culverts.
10. The road and bridge culvert construction of claim 6 wherein the connection strength of the secondary grouting zone is slightly greater than the strength of the arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110433188.9A CN113152317A (en) | 2021-04-22 | 2021-04-22 | Prefabricated culvert component and road and bridge culvert structure using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110433188.9A CN113152317A (en) | 2021-04-22 | 2021-04-22 | Prefabricated culvert component and road and bridge culvert structure using same |
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| Publication Number | Publication Date |
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| CN113152317A true CN113152317A (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110433188.9A Pending CN113152317A (en) | 2021-04-22 | 2021-04-22 | Prefabricated culvert component and road and bridge culvert structure using same |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334384A (en) * | 2013-07-29 | 2013-10-02 | 江苏省交通科学研究院股份有限公司 | Prefabricated concrete culvert assembly structure |
| US20180371714A1 (en) * | 2017-06-27 | 2018-12-27 | James Darren KNIGHT | Markers, culvert markers, location markers, combinations, and methods of use |
| CN210104596U (en) * | 2019-04-04 | 2020-02-21 | 浙江省交通规划设计研究院有限公司 | Assembled culvert structure |
| CN210195818U (en) * | 2019-07-18 | 2020-03-27 | 中铁十八局集团有限公司 | Culvert drainage structures |
| CN212477466U (en) * | 2020-01-14 | 2021-02-05 | 赵富昌 | Large-span culvert structure and prefabricated box culvert |
-
2021
- 2021-04-22 CN CN202110433188.9A patent/CN113152317A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334384A (en) * | 2013-07-29 | 2013-10-02 | 江苏省交通科学研究院股份有限公司 | Prefabricated concrete culvert assembly structure |
| US20180371714A1 (en) * | 2017-06-27 | 2018-12-27 | James Darren KNIGHT | Markers, culvert markers, location markers, combinations, and methods of use |
| CN210104596U (en) * | 2019-04-04 | 2020-02-21 | 浙江省交通规划设计研究院有限公司 | Assembled culvert structure |
| CN210195818U (en) * | 2019-07-18 | 2020-03-27 | 中铁十八局集团有限公司 | Culvert drainage structures |
| CN212477466U (en) * | 2020-01-14 | 2021-02-05 | 赵富昌 | Large-span culvert structure and prefabricated box culvert |
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Application publication date: 20210723 |
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