CN210049129U - Assembled steel-concrete composite structure culvert - Google Patents
Assembled steel-concrete composite structure culvert Download PDFInfo
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- CN210049129U CN210049129U CN201920711882.0U CN201920711882U CN210049129U CN 210049129 U CN210049129 U CN 210049129U CN 201920711882 U CN201920711882 U CN 201920711882U CN 210049129 U CN210049129 U CN 210049129U
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- reinforced concrete
- culvert
- steel
- box culvert
- concrete structure
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- 239000004567 concrete Substances 0.000 title claims abstract description 38
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 37
- 229910000754 Wrought iron Inorganic materials 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 239000003566 sealing material Substances 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 13
- 239000002689 soil Substances 0.000 abstract description 4
- 238000005253 cladding Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model relates to an assembled steel concrete composite construction culvert construction technical field protects an assembled steel concrete composite construction culvert, including each box culvert segment that connects gradually, each box culvert segment includes reinforced concrete structure and steel sheet interface, and the steel sheet interface has the attaching plate that is used for covering the reinforced concrete structure terminal surface and is used for carrying out the bounding wall that the cladding is carried out to reinforced concrete structure tip circumference; the attaching plate and/or the enclosing plate are/is provided with a plurality of protruding structures, and the steel plate interface is fixed by embedding the protruding structures in the reinforced concrete structure; reinforced concrete structure is provided with 4 at least preformed holes that run through length direction, is provided with the hole site that corresponds with the preformed hole on the steel sheet interface, connects through the rod iron that runs through between preformed hole and hole site between each box culvert section, through above-mentioned technical scheme, aims at resisting the differential settlement of soft soil foundation.
Description
Technical Field
The utility model relates to an assembled steel and concrete integrated configuration culvert construction technical field, concretely relates to assembled steel and concrete integrated configuration culvert.
Background
Culverts and channels, which are one of the important components in highway engineering, have a considerable weight in terms of both the number of projects and the construction costs, and box culverts are a common concrete structure form in culverts and channels. At present, the construction of box culverts in China generally adopts a cast-in-place process, but with the upgrading and transformation from labor intensive industry to industrialized and standardized construction of highway traffic engineering construction, prefabricated assembled concrete box culverts with short construction period, good quality and good durability are gradually popularized and applied in recent years.
However, the existing prefabricated concrete box culvert is poor in capability of resisting uneven settlement in a soft soil foundation environment, and development of the prefabricated concrete box culvert is hindered to a certain extent.
In view of the above-mentioned existing defects, the inventor of the present invention has actively studied and innovated based on the practical experience and professional knowledge of many years of design and manufacture of such products, and together with the application of the theory, in order to create an assembled steel-concrete composite structure culvert, so that the culvert has higher practicability. Through continuous research and design, and after repeated trial production of samples and improvement, the utility model is finally created to ensure practical value.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an assembled steel and concrete integrated configuration culvert aims at resisting the inhomogeneous settlement of weak soil foundation.
In order to achieve the above purpose, the utility model adopts the technical scheme that: an assembled culvert with a reinforced concrete composite structure comprises box culvert sections which are sequentially connected, wherein each box culvert section comprises a reinforced concrete structure and a steel plate interface, and the steel plate interface is provided with an attaching plate for covering the end surface of the reinforced concrete structure and a coaming for circumferentially coating the end part of the reinforced concrete structure;
the attaching plate and/or the enclosing plate are/is provided with a plurality of protruding structures, and the steel plate interface is fixed by embedding the protruding structures in the reinforced concrete structure in the process of pouring the reinforced concrete structure;
the reinforced concrete structure is provided with at least 4 preformed holes that run through length direction, be provided with on the steel sheet interface with the hole site that the preformed hole corresponds, through running through between each box culvert section the rod iron between preformed hole and hole position is connected.
Furthermore, an annular water stopping groove is formed in the attaching plate around the box chamber of the box culvert section and used for placing an expansion rubber water stopping strip.
Further, the tip of preformed hole inwards indents and forms groove structure, around the hole site with profile such as groove structure is sunken, forms to inlay and locates gasket notch in the groove structure is used for placing right the preformed hole carries out the rubber gasket sealed.
Furthermore, the edge of the inner ring and/or the outer ring of the attaching plate is provided with a groove structure, and the two groove structures connected with each other are attached to form an annular groove body which is sealed by a rubber sealing material.
Furthermore, the reinforced concrete structure is provided with a connecting groove in the reinforced concrete structure, and the connecting groove is used for installing a jack structure for tensioning the steel bar.
The construction process of the fabricated steel-concrete composite structure culvert comprises the following steps:
hoisting the middle box culvert segment to an installation position, and positioning;
hoisting the second box culvert section to one side of the middle box culvert section, and splicing the second box culvert section with the middle box culvert section in a prestress tensioning or pushing mode;
hoisting the third box culvert section to the other side of the middle box culvert section, and splicing the third box culvert section with the middle box culvert section in a prestress tensioning or pushing mode;
penetrating the steel bar into the preformed holes of the three box culvert sections, and realizing the connection of the three box culvert sections by tensioning the steel bar;
repeating the step of splicing the box culvert sections one by one at the two ends, and connecting the box culvert sections through the steel bars to complete field assembly;
and grouting the preformed hole to be compact, and sealing the joint between two adjacent box culvert sections.
Further, the processing of the box culvert segments comprises the following steps:
determining specific dimensions of the box culvert segments;
processing the steel plate interface according to the determined size;
binding a steel bar of an assembled steel-concrete composite structure, and fixing the PVC pipe and the steel plate interface;
and realizing the pouring of the reinforced concrete structure.
Through the technical scheme of the utility model, can realize following technological effect:
the utility model discloses in link together a plurality of box culvert segments through the rod iron, can resist the inhomogeneous settlement of soft soil foundation to a certain extent, set up the steel sheet interface through the edge at the box culvert segment simultaneously, can reduce the damage risk in prefabricated component hoist and mount and the transportation, guarantee the accuracy nature and the validity of above-mentioned connection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a cross-sectional view of the fabricated steel-concrete composite structure culvert of the present invention;
FIG. 2 is a perspective view of the culvert section of the assembled steel-concrete composite structure of the present invention;
FIG. 3 is a schematic perspective view of the assembled steel-concrete composite structure culvert assembled on site;
FIG. 4 is a side view of the assembled steel-concrete composite structure culvert of the present invention assembled on site;
FIG. 5 is a perspective view of the steel plate interface of the fabricated steel-concrete composite culvert of the present invention;
FIG. 6 is a partial detail view of the connection section of the fabricated steel-concrete composite structural culvert of the present invention;
FIG. 7 is a partial detail view of the section of the culvert preformed hole with the assembled steel-concrete composite structure of the invention;
reference numerals: reinforced concrete structure 1, steel sheet interface 2, doubling plate 21, bounding wall 22, stagnant water groove 3, inflation rubber sealing strip 4, outer groove 5, interior groove 6, preformed hole 7, PVC pipe 8, rod iron 9, protruding structure 10, rubber sealing material 11, gasket notch 12, rubber gasket 13, spread groove 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
As shown in fig. 1 to 7, an assembled culvert with a reinforced concrete composite structure comprises box culvert sections connected in sequence, wherein each box culvert section comprises a reinforced concrete structure 1 and a steel plate interface 2, and the steel plate interface 2 is provided with a binding plate 21 for covering the end surface of the reinforced concrete structure 1 and a surrounding plate 22 for circumferentially covering the end part of the reinforced concrete structure 1; the attaching plate 21 and/or the enclosing plate 22 are/is provided with a plurality of protruding structures 10, and in the pouring process of the reinforced concrete structure 1, the steel plate connector 2 is fixed by embedding the protruding structures 10 into the reinforced concrete structure 1; reinforced concrete structure 1 is provided with runs through length direction's 4 at least preformed holes 7, is provided with the hole site that corresponds with preformed hole 7 on the steel sheet interface 2, connects through the rod iron 9 that runs through between preformed hole 7 and the hole position between each box culvert section. Wherein, the rod iron 9 can select screw thread or polished rod structure, links together 2~3 box culvert segments through the stretch-draw.
Compare with present prefabricated assembled concrete box culvert construction technology, the utility model discloses an assembled steel and concrete integrated configuration culvert adopts steel sheet interface 2 as the connecting cross-section of assembled box culvert, can reduce the risk of prefabricated box culvert segment border collision damage in hoist and mount transportation. The protruding structure 10 may be a stud structure welded or screwed to the attaching plate 21 and/or the enclosing plate 22, and the specific number of the studs may be set according to the specific size of the box culvert and the protruding structure 10.
In the embodiment, the thicknesses of the upper top plate, the lower top plate, the left side plate and the right side plate of the reinforced concrete structure 1 meet the design requirements, are not less than 250mm, and are generally 2 m-3 m in length; the reinforced concrete structure 1 is provided with a preformed hole 7 at 4 axillary corners of the cross section through a PVC pipe 8, and the diameter of the preformed hole 7 is generally 50 mm. The steel plate interface 2 is formed by pressing a steel plate, and the thickness of the steel plate is 5 mm.
Preferably, the attaching plate 21 is provided with an annular water stopping groove 3 around the box chamber of the box culvert section for placing the expansion rubber water stopping strip 4. The expansion rubber water stop 4 realizes the sealing effect through the extrusion between two box culvert sections, and effectively improves the waterproof capacity of the box culvert engineering. In the preferred scheme, the width of the water stopping groove 3 is 20mm, and the depth is 5 mm.
The tip of preformed hole 7 is inwards retracted and is formed groove structure, and the profile such as groove structure is sunken around the hole site, forms and inlays gasket notch 12 of locating in groove structure for place the rubber gasket 13 that seals up preformed hole 7. The diameter of gasket notch 12 is generally 80mm, and the degree of depth is generally 5mm, and rubber gasket 13 places wherein around rod iron 9, seals the gap between rod iron 9 and preformed hole 7, prevents that the preformed hole 7 from appearing leaking the thick liquid phenomenon when the grout is being annotated.
In order to further increase the sealing effect, the edge of the inner ring and/or the outer ring of the attaching plate 21 is provided with a groove structure, and an annular groove body formed after the groove structures between two connected box culvert sections are attached is sealed by the rubber sealing material 11. As shown in fig. 6, the inner groove 6 located in the inner ring and the outer groove 5 located in the outer ring are arranged, the rubber sealing material 11 is placed between the two reinforced concrete structures 1 and is connected to form a triangle, the outer groove 5 and the inner groove 6 form a triangle, after solidification, two steel plates can be connected, and the rubber sealing material has certain elasticity, and through the arrangement of the rubber sealing material 11, the joint between box culvert connection can be sealed, the rotational deformation between box culverts can be effectively counteracted, and the uneven settlement of the prefabricated box culverts is resisted.
In order to facilitate the operation of the simple jack, the reinforced concrete structure 1 is provided with a connecting groove 14 inside thereof for installing a jack structure for tensioning the steel bar 9.
A construction process of an assembled steel-concrete composite structure culvert comprises the following steps:
hoisting the middle box culvert segment to an installation position, and positioning;
hoisting the second box culvert section to one side of the middle box culvert section, and splicing the second box culvert section with the middle box culvert section in a prestress tensioning or pushing mode;
hoisting the third box culvert section to the other side of the middle box culvert section, and splicing the third box culvert section with the middle box culvert section in the same manner of prestress tensioning or pushing;
penetrating a steel bar 9 into the preformed holes 7 of the three box culvert sections, and realizing the connection of the three box culvert sections by tensioning the steel bar 9;
repeating the step of splicing the box culvert sections one by one at the two ends, and connecting the box culvert sections through the steel bars 9 to complete on-site splicing;
the preformed hole 7 is grouted compactly, the joint between two adjacent box culvert sections is sealed, and finally the connecting groove of the box culvert sections is sealed.
The method comprises the following steps of:
determining the specific size of the box culvert segment;
processing the steel plate interface 2 according to the determined size;
binding a steel bar of an assembled steel-concrete composite structure, fixing a PVC pipe 8 and a steel plate interface 2;
and the pouring of the reinforced concrete structure 1 is realized.
Specifically, as a preferred preference of the above embodiment, the construction process of the fabricated steel-concrete composite structure culvert is detailed as follows:
the method comprises the following steps: determining the geometric dimensions of the box culvert segments according to box culvert design requirements, wherein the geometric dimensions specifically comprise the lengths of the box culvert segments, the widths and the heights of the cross sections, the thicknesses of side walls and upper and lower concrete slabs, and making corresponding steel templates;
step two: according to design requirements, a steel plate with the thickness of 5mm is selected to form a steel plate interface 2 with an outer groove 5, an inner groove 6, a preformed hole 7, a gasket groove opening 12 and a water stop groove 3 through specific pressing and welding;
step three: binding reinforcing steel bars, fixing a PVC pipe 8, placing a steel plate connector 2 on the cross section of the prefabricated part to be connected, and arranging a connecting groove 14 on the box culvert section to be stretched with the steel bar 9;
step four: pouring vibrated concrete, and curing and storing according to the standard requirement;
step five: the box culvert engineering foundation is processed according to the standard requirement, the fabricated steel-concrete composite structure culvert components are transported to the site for assembly, and the assembly scheme is as follows:
1) hoisting the middle box culvert segment to an installation position, and accurately positioning; then sticking the expanded rubber water stop strip 11 in the water stop groove 3 by using glue to form a closed ring; then sticking the rubber gaskets 13 in all the gasket notches by using glue;
2) hoisting the box culvert sections of the second fabricated steel-concrete combined structure culvert to the installation position, and splicing the box culvert sections with the middle box culvert sections in a prestress tensioning or pushing mode;
3) hoisting the box culvert segment of the third assembly type steel-concrete combined structure culvert to the other side of the middle box culvert segment, and splicing the box culvert segment with the other end of the middle box culvert segment in the same manner by means of prestress tensioning or pushing;
4) tensioning the steel bars 9 to tightly connect the box culvert sections of the three-section assembled steel-concrete combined structure culvert together;
5) circulating the steps 1-4 to enable all box culvert sections to be successfully assembled;
6) grouting the preformed hole 7 with mortar for compacting, and sealing the connection with concrete mortar;
7) sealing the steel plate outer groove 5 and the steel plate inner groove 6 of the steel plate interface 2 by using a rubber sealing material 11;
8) sealing the connecting notch by using concrete;
and (5) assembling the fabricated steel-concrete combined structure culvert.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. An assembled culvert with a reinforced concrete composite structure comprises box culvert sections which are sequentially connected, and is characterized in that each box culvert section comprises a reinforced concrete structure (1) and a steel plate interface (2), wherein the steel plate interface (2) is provided with a joint plate (21) for covering the end surface of the reinforced concrete structure (1) and a coaming (22) for circumferentially coating the end part of the reinforced concrete structure (1);
the attaching plate (21) and/or the enclosing plate (22) are/is provided with a plurality of protruding structures (10), and in the pouring process of the reinforced concrete structure (1), the steel plate connector (2) is fixed by embedding the protruding structures (10) in the reinforced concrete structure (1);
reinforced concrete structure (1) is provided with runs through length direction's at least 4 preformed holes (7), be provided with on steel sheet interface (2) with the hole site that preformed hole (7) correspond, through running through between each box culvert section rod iron (9) between preformed hole (7) and hole site are connected.
2. The fabricated steel-concrete composite structural culvert according to claim 1, characterized in that the chambers surrounding the culvert sections on the laminated plates (21) are provided with annular water stopping grooves (3) for placing expanded rubber water stopping strips (4).
3. An assembled steel and concrete composite structure culvert according to claim 1, characterized in that the ends of the preformed holes (7) are inwardly retracted to form groove structures, the peripheries of the hole sites are recessed with the contour of the groove structures to form gasket notches (12) embedded in the groove structures, and rubber gaskets (13) for sealing the preformed holes (7) are placed in the gasket notches.
4. The fabricated steel-concrete composite structure culvert according to claim 1, wherein a groove structure is arranged at the edge of the inner ring and/or the outer ring of the fitting plate (21), and an annular groove body formed after the groove structures between two connected culvert sections are fitted is sealed by a rubber sealing material (11).
5. The fabricated reinforced concrete composite structure culvert according to claim 1, characterized in that the reinforced concrete structure (1) is provided with a connection groove (14) inside thereof for installing a jack structure for tensioning the steel bar (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920711882.0U CN210049129U (en) | 2019-05-17 | 2019-05-17 | Assembled steel-concrete composite structure culvert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920711882.0U CN210049129U (en) | 2019-05-17 | 2019-05-17 | Assembled steel-concrete composite structure culvert |
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| Publication Number | Publication Date |
|---|---|
| CN210049129U true CN210049129U (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920711882.0U Active CN210049129U (en) | 2019-05-17 | 2019-05-17 | Assembled steel-concrete composite structure culvert |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029599A (en) * | 2019-05-17 | 2019-07-19 | 苏交科集团股份有限公司 | Prefabricated culvert steel connecting structure and construction method |
| TWI845418B (en) | 2023-09-19 | 2024-06-11 | 潤弘精密工程事業股份有限公司 | Culvert structure |
-
2019
- 2019-05-17 CN CN201920711882.0U patent/CN210049129U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029599A (en) * | 2019-05-17 | 2019-07-19 | 苏交科集团股份有限公司 | Prefabricated culvert steel connecting structure and construction method |
| CN110029599B (en) * | 2019-05-17 | 2024-01-30 | 苏交科集团股份有限公司 | Prefabricated culvert steel connection structure and construction method |
| TWI845418B (en) | 2023-09-19 | 2024-06-11 | 潤弘精密工程事業股份有限公司 | Culvert structure |
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