Corrugated steel box culvert structure

Abstract

The present invention relates to a corrugated steel box culvert structure, comprising a plurality of panel units, which are vertically connected in sequence through connecting pieces to form a closed box culvert structure or a box culvert structure with an open lower end, wherein the panel units include at least one steel corrugated plate. The present invention connects the panel units through modular connecting pieces, replacing the traditional box culvert structure in which the panel units are overlapped up and down and then directly fixed with bolts or rivets. The modular connecting pieces have a fast construction speed and low construction cost, while ensuring the strength, deformation resistance and earthquake resistance of the box culvert.

Description

Technical Field

[0001] The invention relates to the technical field of box culvert structures, and in particular to a corrugated steel box culvert structure. Background Art

[0002] Box culvert is a type of culvert. Culverts can be divided into slab culverts, circular culverts, arch culverts and box culverts. Box culverts are not slab open channels. The slab, culvert body and foundation of the box culvert are cast as a whole with reinforced concrete, which can be used for drainage, passing people and vehicles.

[0003] In the existing technology, the box culvert structure is generally made of reinforced concrete, but the concrete box culvert has a long construction period and poor deformation capacity. Compared with the traditional concrete box culvert structure, the steel corrugated plate box culvert has obvious advantages: strong bearing capacity, strong deformation adaptability, short construction period, convenient construction and low cost.

[0004] However, the current corrugated steel box culvert connections are mostly fixed directly with bolts or rivets after overlapping the upper and lower parts. This fixing method results in weak compressive strength at the joints, and during the installation process, it is difficult to quickly and accurately locate the fixing holes on the two adjacent panel units, resulting in construction difficulties and slow construction speed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to propose a corrugated steel box culvert structure to overcome the problems of poor compression resistance of the panel units of the box culvert structure at the connection points, difficulty in box culvert construction, slow construction speed, etc. in the prior art.

[0006] To achieve the above purpose, the technical solution proposed by the present invention is:

[0007] The corrugated steel box culvert structure comprises a plurality of panel units, which are vertically connected in sequence through connectors to form a closed box culvert structure or a box culvert structure with an open lower end, wherein the panel unit comprises at least one piece of corrugated steel plate.

[0008] Furthermore, the connecting piece is a groove-type connecting piece, including a connecting piece body, on the horizontal side and the vertical side of the connecting piece body are provided with a corrugated body groove, the position of the corrugated body groove of the connecting piece body is provided with a plurality of connecting holes, the end of the puzzle unit is provided with a mounting hole, the puzzle unit is inserted into the corrugated body groove and is connected to the connecting piece body by bolts.

[0009] Furthermore, the connecting piece body is a long block-shaped right-angle casting structure, the outer corners and inner corners of the right-angle casting structure are both rounded structures, and multiple groups of reinforcing ribs are arranged at the inner corners.

[0010] Furthermore, the connecting piece is a split-type embedded groove connecting piece, including an inner mold and an outer mold of a right-angle structure, the upper end of the inner mold and the lower end of the outer mold cooperate to form a corrugated body embedded groove, a plurality of groups of connecting holes are provided on the inner mold and the outer mold, and a mounting hole is provided at the end of the puzzle unit, the puzzle unit is inserted into the corrugated body embedded groove and connected to the inner mold and the outer mold by bolts to form a whole.

[0011] Furthermore, the inner mold and the outer mold are both thick right-angle casting structures, the upper end of the inner mold is a corrugated structure, and the lower end is a plane, the lower end of the outer mold is a corrugated structure, and the lower end is a plane, the inner corner of the inner mold and the outer corner of the outer mold are both chamfered structures, and multiple groups of reinforcing ribs are arranged at the inner corners of the inner mold.

[0012] Furthermore, the inner mold and the outer mold are both right-angle corrugated plate structures, and the inner mold and the outer mold cooperate to form a corrugated body embedding groove, and multiple groups of reinforcing ribs are arranged at the inner corners of the inner mold.

[0013] Furthermore, the single panel unit includes a plurality of corrugated steel plates, flange plates are arranged around the steel corrugated plates, and the plurality of corrugated steel plates are bolted or welded into a sheet through the flange plates.

[0014] Furthermore, the single panel unit includes a plurality of steel corrugated plates, which are stacked in sequence and connected by bolts or welded into a sheet.

[0015] The corrugated steel box culvert structure comprises a plurality of panel units, each panel unit comprising at least one steel corrugated plate; the panel units are divided into an upper transverse panel, a lower transverse panel and a longitudinal panel, both ends of the upper transverse panel are provided with downwardly extending short installation edges, both ends of the lower transverse panel are provided with upwardly extending short installation edges, two longitudinal panels are provided between the upper transverse panel and the lower transverse panel, and within the installation short edges on both sides of the upper transverse panel and the lower transverse panel, and are fixed by the installation short edges to form a box structure; the four inner corners of the box structure are fixed by a corrugated steel angle steel structure.

[0016] Furthermore, threaded holes are arranged on the installation short edge, and threaded holes are arranged on the upper and lower ends of the longitudinal panels. After the corrugated structure of the longitudinal panels overlaps with the corrugated structure of the installation short edge, they are fixedly connected by bolts; the corrugated steel angle steel structure is fixedly connected to the upper transverse panel, the lower transverse panel and the longitudinal panel by bolts.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention connects the panel units through modular connectors, replacing the traditional box culvert structure in which the panel units are overlapped up and down and then directly fixed with bolts or rivets. The modular connector connection has a fast construction speed and low construction cost, while ensuring the strength, deformation resistance and earthquake resistance of the box culvert.

[0019] 2. In one embodiment of the present invention, the main body of the connector is a long block-shaped right-angle casting structure, which is prefabricated according to the waveform characteristics of the steel corrugated plate. It has a high degree of modularity and extremely strong mechanical strength. Multiple groups of reinforcing ribs are arranged at the inner corners of the right-angle casting structure to further enhance the connection strength, and it can withstand extremely high pressure without deformation or fracture.

[0020] 3. An embodiment of the present invention uses a cap-type installation short edge to first assemble and fix the upper horizontal panel, the lower horizontal panel and the longitudinal panel to form a box structure. The four inner corners of the box structure are tightly fixed by a corrugated steel angle steel structure. It is easy to reinforce, has a low manufacturing cost, and has strong mechanical strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0022] Figure 2 is a schematic diagram of the overall structure of the connecting piece of Embodiment 2 of the present invention;

[0023] Figure 3 is a schematic diagram of the inner mold structure of Example 3 of the present invention;

[0024] Figure 4 is a schematic diagram of the outer mold structure of Example 3 of the present invention;

[0025] Figure 5 is a schematic diagram of the overall structure of the connecting piece of Embodiment 3 of the present invention;

[0026] Figure 6 is a schematic diagram of the overall structure of a connecting piece according to Embodiment 4 of the present invention;

[0027] Figure 7 It is a structural diagram of the main body of the steel corrugated plate.

[0028] In the figure, 1-upper transverse panel, 2-lower transverse panel, 3-longitudinal panel, 4-installation short edge, 5-bolt, 6-corrugated steel angle steel structure, 7-connector body, 701-corrugated body groove, 702-connecting hole, 8-inner mold, 9-outer mold, 10-right-angle corrugated plate, 11-steel corrugated plate. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings by specific embodiments. Wherein similar elements in different embodiments have adopted associated similar element numbers. In the following embodiments, many details are described in order to make the application better understood. However, those skilled in the art can recognize without difficulty that some features can be omitted in different situations, or can be replaced by other elements, materials, methods.

[0030] The basic idea of ​​the present invention is to design a corrugated steel box culvert structure, which includes a plurality of panel units, which are vertically connected in sequence through prefabricated connecting parts to form a closed box culvert structure, or a box culvert structure with an open lower end. A single panel unit includes at least one piece of steel corrugated plate, which is generally connected into a piece through multiple steel corrugated plates.

[0031] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] Embodiment 1:

[0033] See also Figure 1 The corrugated steel box culvert structure comprises four panel units. In this embodiment, each panel unit comprises a steel corrugated plate 11.

[0034] The panel unit is divided into an upper transverse panel 1, a lower transverse panel 2 and a longitudinal panel 3. The two ends of the upper transverse panel 1 are provided with downwardly extending short installation edges 4, and the two ends of the lower transverse panel 2 are provided with upwardly extending short installation edges 4. The two longitudinal panels 3 are arranged between the upper transverse panel 1 and the lower transverse panel 2 and in the installation short edges 4 on both sides of the upper transverse panel 1 and the lower transverse panel 2. The four panel units are fixed by the installation short edges 4 to form a box structure, and the four inner corners of the box structure are fixed by the corrugated steel angle steel structure 6.

[0035] In this embodiment, threaded holes are set on the installation short edge 4, and threaded holes are set at the upper and lower ends of the longitudinal panel 3. The corrugated structure of the longitudinal panel 3 is fixedly connected with the corrugated structure of the installation short edge 4 after the peaks and troughs overlap, and then the corrugated structure is fixedly connected by bolts 5; the corrugated steel angle steel structure 6 is made of steel corrugated plate 11, and is fixedly connected with the upper transverse panel 1, the lower transverse panel 2 and the longitudinal panel 3 after the peaks and troughs overlap.

[0036] Embodiment 2:

[0037] In this embodiment, a single panel unit is formed by connecting multiple pieces of steel corrugated plates 11. Specifically, flange plates are set around the steel corrugated plates 11. Multiple pieces of steel corrugated plates 11 are connected or welded into a whole piece through flange plates and bolts. The steel corrugated plate 11 at the end does not have a flange plate, which is used for insertion and fixation.

[0038] See also Figure 2The connector between the panel units is a groove-type connector, including a connector body 7, a corrugated body groove 701 is provided on the horizontal side and the vertical side of the connector body 7, a plurality of connection holes 702 are provided at the location of the corrugated body groove 701 of the connector body 7, a mounting hole is provided at the end of the steel corrugated plate 11 of the panel unit, and multiple panel units are inserted into the corrugated body groove 701 and fixedly connected with the connector body 7 by bolts. In this embodiment, four panel units and four groups of connector bodies 7 can be spliced ​​and fixed to form a rectangular box structure, or three panel units and two groups of connector bodies 7 can be spliced ​​and fixed to form a rectangular box structure with an open lower end.

[0039] In this embodiment, the connector body 7 is a long block-shaped right-angle casting structure, which is prefabricated according to the corrugated characteristics of the steel corrugated plate 11 and has extremely strong mechanical strength. The outer and inner corners of the right-angle casting structure are both chamfered structures, and multiple groups of reinforcing ribs are arranged at the inner corners to further enhance the strength.

[0040] Embodiment 3:

[0041] See also Figure 3-Figure 5 The connecting parts between the panel units are split-type embedded groove connecting parts, including an inner mold 8 and an outer mold 9 of a right-angle structure. The upper end of the inner mold 8 and the lower end of the outer mold 9 cooperate to form a corrugated body embedded groove 701. A plurality of connecting holes 702 are provided on the inner mold 8 and the outer mold 9. Mounting holes are provided at the ends of the steel corrugated plates 11 of the panel units. The steel corrugated plates 11 of the panel units are inserted into the corrugated body embedded groove 701 and connected with the inner mold 8 and the outer mold 9 by bolts to form the overall structure of the box.

[0042] In this embodiment, the inner mold 8 and the outer mold 9 are both thick right-angle casting structures, which are prefabricated according to the corrugated characteristics of the steel corrugated plate 11 and have extremely strong mechanical strength. The upper end face of the inner mold 8 is a corrugated structure, and the lower end is a casting plane. The lower end of the outer mold 9 is a corrugated structure, and the lower end is a casting plane. The inner corners of the inner mold 8 and the outer corners of the outer mold are both chamfered structures, and a plurality of groups of reinforcing ribs are arranged at the inner corners of the inner mold 8 to further enhance the strength.

[0043] Embodiment 4:

[0044] See also Figure 6 , which is different from Example 3, the inner mold and the outer mold are both right-angle corrugated plate 10 structures, and a plurality of connection holes 702 are arranged on the right-angle corrugated plate 10. The inner mold and the outer mold cooperate to form a corrugated body embedding groove 701 in the middle. The steel corrugated plate 11 of the panel unit is inserted into the corrugated body embedding groove 701 and connected with the inner mold and the outer mold by bolts to form the overall structure of the box body; a plurality of reinforcing ribs are arranged at the inner corners of the inner mold to further enhance the strength.

[0045] See also Figure 7The wave pitch of the steel corrugated plate 11 involved in the embodiment of the present invention is 75mm-400mm, preferably 300mm, the wave height is 25mm-237mm, preferably 150mm, and the thickness of the steel corrugated plate 11 is 1.5mm-10mm, preferably 7mm; the steel corrugated plate 11 is customized according to the site conditions. In this embodiment, the height is 6m-7.5m, preferably 6.5m, and the width is 1.5m-3m, preferably 2m.

[0046] For those skilled in the art, several improvements and modifications may be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as within the scope of protection of the present invention.

Claims

1. Corrugated steel box culvert structure, characterized by: It comprises four panel units, which are vertically connected in sequence through connectors to form a closed box culvert structure, and the panel units are steel corrugated plates; The connector is a split type embedded groove connector, including an inner mold and an outer mold of a right-angle structure, the upper end of the inner mold cooperates with the lower end of the outer mold to form a corrugated body embedded groove, a plurality of groups of connection holes are provided on the inner mold and the outer mold, and a mounting hole is provided at the end of the panel unit, and the panel unit is inserted into the corrugated body embedded groove and connected with the inner mold and the outer mold by bolts to form a whole; The inner mold and the outer mold are both thick right-angle casting structures. The upper end of the inner mold is a corrugated structure and the lower end is a plane. The lower end of the outer mold is a corrugated structure and the upper end is a plane. The inner corner of the inner mold and the outer corner of the outer mold are both chamfered structures, and multiple groups of reinforcing ribs are arranged at the inner corners of the inner mold.

2. The corrugated steel box culvert structure according to claim 1 is characterized in that: The single panel unit comprises a plurality of steel corrugated plates, flange plates are arranged around the steel corrugated plates, and the plurality of steel corrugated plates are bolted or welded into a sheet through the flange plates.

3. The corrugated steel box culvert structure according to claim 1 is characterized in that: The single panel unit comprises a plurality of steel corrugated plates, which are stacked in sequence and connected by bolts or welded into a sheet.

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