An extension connection structure of corrugated steel plate

Abstract

The utility model discloses a kind of extension connection structures of corrugated steel plate;The structure includes at least two transverse connections of corrugated steel unit, each corrugated steel unit includes the edge plate arranged along perimeter and the steel corrugated plate located in the area enclosed by edge plate, steel corrugated plate end face is equipped with several transverse connecting plates parallelly arranged along width direction.Each edge plate is opened with edge plate gap in transverse connecting plate position, transverse connecting plate sequentially passes through this side edge plate gap along width direction and extends steel corrugated plate edge, and its extended portion is inserted into the edge plate gap of adjacent corrugated steel unit and is fixedly connected with adjacent steel corrugated plate, so that adjacent corrugated steel unit is connected in width direction Form through connection. Optionally, set through rib hole on transverse connecting plate and edge plate, and connect multiple groups of corrugated steel unit in length direction continuously by reinforcing steel bar.The utility model is simple in structure, reliable in connection, and is suitable for multi-pass corrugated steel plate overall stress.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering technology, and more specifically, to an extension connection structure for corrugated steel plates. Background Technology

[0002] Corrugated steel plate structures are a type of composite structure with formed corrugated steel plates as the main load-bearing components. They are commonly used in highway bridges, culverts, tunnels, and municipal engineering projects, replacing traditional reinforced concrete arches and box culverts. The corrugated steel plates improve the bending stiffness and stability of the cross-section through their corrugated geometry, sharing the load with the surrounding backfill soil. This allows for reduced self-weight while meeting load-bearing requirements, and offers advantages such as high prefabrication, convenient transportation, and fast on-site assembly.

[0003] In engineering projects with large spans or wide structures, it is often necessary to arrange multiple corrugated steel arches or rows of corrugated steel plates along the width direction to form an integral arch shell or box-shaped load-bearing system. In existing projects, the lateral connections between corrugated steel plates are usually achieved by bolted connections at the plate edges, local diaphragms, or a small number of steel beams. These lateral connections are mostly discretely arranged, with discontinuous connection lines, making it difficult to form an integral lateral force transmission path in the width direction. Under conditions such as vehicle eccentric loading, construction loads, and uneven settlement, the lateral stiffness and overall stability of the structure are easily affected.

[0004] Furthermore, multi-corrugated steel plates are typically connected linearly along their length only through edge plate bolts or end plate splicing. The synergistic effect between the ends of the corrugated steel plates and the surrounding concrete and stiffening members is limited, making it difficult to form a complete three-dimensional connection system in both the transverse and longitudinal directions. During the construction and assembly phase, the connection structures between the corrugated steel plates and between the corrugated steel plates and the outer concrete are also relatively scattered, which is not conducive to achieving standardized and modular extended assembly.

[0005] Therefore, existing corrugated steel plate structures still have room for improvement in terms of lateral connection methods, overall load-bearing performance, and ease of extended assembly. It is necessary to provide a corrugated steel plate extension connection structure that is simple in structure, reliable in connection, and facilitates the formation of an integrated load-bearing system of multiple corrugated steel plates in the lateral and length directions. Summary of the Invention

[0006] This invention proposes an extension connection structure for corrugated steel plates, which solves the problems of discrete lateral connections and insufficient overall rigidity of multiple corrugated steel plates in the prior art.

[0007] To achieve the above objectives, the technical solution proposed by this utility model is as follows: An extension connection structure for corrugated steel plates includes at least two transversely connected corrugated steel units. Each corrugated steel unit includes a side plate arranged along the perimeter, a corrugated steel plate arranged within the area enclosed by the side plate, and several transverse connecting plates arranged on the end face of the corrugated steel plate. Several of the transverse connecting plates are arranged parallel to each other along the width direction of the corrugated steel plate; A notch is provided on the side plate of each corrugated steel unit. A transverse connecting plate passes through the notch of the side plate of the corrugated steel unit along the width direction of the corrugated steel plate and extends out of the edge of the corrugated steel plate. The extended part of the transverse connecting plate extends into the notch of the side plate of the adjacent corrugated steel unit and is fixedly connected to the corrugated steel plate of the adjacent corrugated steel unit.

[0008] Furthermore, it also includes at least two longitudinally connected corrugated steel units, with at least one reinforcing bar in each group of corrugated steel units. The reinforcing bar extends along the length of the corrugated steel unit, and the end of the reinforcing bar extends out of the outer side of the corresponding corrugated steel unit and is welded to the end of the corresponding reinforcing bar in the adjacent group of corrugated steel units.

[0009] Furthermore, multiple first through holes are spaced apart on each transverse connecting plate, and second through holes corresponding to the positions of the first through holes are provided on the side plate, with at least one reinforcing bar passing through the first through holes and the second through holes in sequence.

[0010] Furthermore, several bolt holes are provided on the side plate, and the side plates of adjacent corrugated steel units are connected by bolts after being aligned.

[0011] Furthermore, a concrete pouring layer is provided on the end face of the corrugated steel unit, and the transverse connecting plate, reinforcing steel bars, corrugated steel plate and side plate are integrally covered with the concrete pouring layer.

[0012] Furthermore, the transverse connecting plate is an L-shaped steel member arranged along the width direction of the corrugated steel plate, and the lower flange of the L-shaped steel member is attached to and fixed to the end face of the corrugated steel plate.

[0013] Furthermore, the transverse connecting plate is a channel steel component arranged along the width direction of the corrugated steel plate, and the lower flange of the channel steel component is attached to and fixed to the end face of the corrugated steel plate.

[0014] Furthermore, the transverse connecting plate is fixed to the corrugated steel plate by several bolts.

[0015] Furthermore, the transverse connecting plate is welded and fixed to the corrugated steel plate.

[0016] Furthermore, the corrugated steel plate has a waveform that is sinusoidal, triangular, trapezoidal, or right-angled.

[0017] Compared with the prior art, the beneficial effects of this utility model are: This invention arranges several transverse connecting plates on the end face of a corrugated steel unit and opens side plate notches on the side plates, so that the transverse connecting plates pass through the side plate notches of the corrugated steel unit on this side in sequence and extend into the side plate notches of the adjacent corrugated steel unit. This allows the same transverse connecting plate to be fixedly connected to the end face of two corrugated steel plates at the same time, realizing the through connection of multiple corrugated steel units in the width direction. This is beneficial to forming a continuous transverse connecting band and improving the overall integrity of the combination of multiple corrugated steel plates.

[0018] This invention provides reinforcing bars extending along the length of a corrugated steel unit, along with first and second through-bar holes arranged on the transverse connecting plate and side plate. This allows the reinforcing bars to pass through multiple corrugated steel units sequentially and be welded to adjacent groups of reinforcing bars at their ends, thus achieving continuous connection of multiple groups of corrugated steel units along the length. This facilitates the formation of a continuous connection grid in both the longitudinal and transverse directions based on the transverse connection.

[0019] This invention provides a concrete pouring layer on the end face of the corrugated steel unit to cover the transverse connecting plate, reinforcing bars, corrugated steel plate and edge plate as a whole, so that the corrugated steel and the outer concrete form an integrated structure, which is beneficial to improve the rigidity and integrity of the joint, reduce local stress concentration at the end, and facilitates cooperation with other concrete structures.

[0020] The transverse connecting plate of this utility model can be made of L-shaped steel components or channel steel components. It can be fixed to the end face of the corrugated steel plate by welding or by bolt connection, adapting to different structural forms and construction conditions. The waveform of the corrugated steel plate can be selected as sinusoidal, triangular, trapezoidal, or right-angled, etc. This utility model has a simple structure, wide applicability, and is easy to promote and apply to different types of corrugated steel plate projects.

[0021] Of course, implementing the various technical solutions of this utility model does not necessarily require achieving all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model; Figure 2 This is a structural schematic diagram of Embodiment 2 of the present invention; Figure 3This is an example diagram of the waveform of a corrugated steel sheet; In the diagram, 1-corrugated steel plate, 2-side plate, 3-bolt hole, 4-transverse connecting plate, 5-side plate notch, 6-reinforcing steel bar, 7-first through-bar hole, 8-second through-bar hole. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0025] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0026] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0027] Example 1: like Figure 1 As shown, this embodiment provides an extension connection structure for corrugated steel plates, including at least two corrugated steel units that are laterally connected in the width direction.

[0028] Each corrugated steel unit includes: a corrugated steel plate 1 arranged in the middle, the corrugation of which can be sinusoidal, triangular, trapezoidal, or right-angled; side plates 2 arranged around the perimeter of the corrugated steel plate 1, forming a closed or nearly closed contour that surrounds the corrugated steel plate 1; and several transverse connecting plates 4 arranged on the end face of the corrugated steel plate 1, which are parallel to each other along the width direction of the corrugated steel plate 1. On the side plates 2 of each corrugated steel unit, notches 5 are provided at the positions of the transverse connecting plates 4.

[0029] The transverse connecting plate 4 passes through the side plate notch 5 of the corrugated steel unit along the width direction of the corrugated steel plate 1 and extends out of the edge of the corrugated steel plate 1 to form an extended section; the extended section of the same transverse connecting plate 4 continues to extend into the side plate notch 5 on the side plate 2 of another adjacent corrugated steel unit, and is fixedly connected to the end face of the corrugated steel plate 1 of the adjacent corrugated steel unit at the extended position, for example, by welding or bolt connection.

[0030] With the above arrangement, the same transverse connecting plate 4 is simultaneously connected to the corrugated plates 1 of two adjacent corrugated steel units in the width direction, so that the two corrugated steel units are connected through the transverse connecting plate 4 in the width direction. Compared with the traditional solution of splicing only by side plate bolts, this structure forms one or more continuous "steel strips" in the width direction, which is beneficial for multiple corrugated steel units to work together in the transverse direction.

[0031] In a specific embodiment, the transverse connecting plate 4 can be an L-shaped steel component arranged along the width direction of the corrugated steel plate 1, with the lower flange of the L-shaped steel attached to and fixed to the end face of the corrugated steel plate 1; the transverse connecting plate 4 can also be a channel steel component arranged along the width direction of the corrugated steel plate 1, with the lower flange of the channel steel attached to and fixed to the end face of the corrugated steel plate 1. The transverse connecting plate 4 and the corrugated steel plate 1 can be fixed by welding, or by connecting them by passing several bolts through pre-drilled holes on the end face of the corrugated steel plate 1.

[0032] In this embodiment, a number of bolt holes 3 can also be provided on the side plate 2 along its length direction. After the side plates 2 of two adjacent corrugated steel units are aligned, linear splicing in the length direction is achieved by bolts passing through the bolt holes 3, so that the corrugated steel units can also form a continuous strip in the length direction.

[0033] Example 2: See Figure 2 Based on Example 1, this example further provides reinforcing steel bars 6 extending along the length of the corrugated steel unit, and pours a concrete layer at the end to completely cover the node area (not shown in the figure).

[0034] Multiple first through holes 7 are spaced apart along the length of each transverse connecting plate 4, and second through holes 8 corresponding to the positions of the first through holes 7 are provided on the side plate 2 corresponding to the transverse connecting plate 4. At least one reinforcing bar 6 is provided in each group of corrugated steel units, extending along the length of the corrugated steel unit, and its body sequentially passes through the multiple first through holes 7 on the transverse connecting plate 4 and the second through holes 8 on the side plate 2. The reinforcing bar 6 extends beyond the side plate 2 at the end of the corrugated steel unit.

[0035] When multiple sets of corrugated steel units are arranged sequentially along the length direction, the end of the reinforcing steel bar 6 extending from the side plate 2 in one set of corrugated steel units is welded to the end of the corresponding reinforcing steel bar 6 in the adjacent set of corrugated steel units, so that the reinforcing steel bars 6 are arranged continuously in the length direction. In this way, multiple sets of corrugated steel units are connected to the transverse connecting plate 4 and the side plate 2 through the through holes, forming a continuous steel reinforcement connection system in both the width and length directions.

[0036] A concrete layer is poured at the end area of ​​the corrugated steel unit to completely cover the ends of the corrugated steel plate 1, the side plate 2, the protruding parts of the transverse connecting plate 4, and the exposed parts of the reinforcing steel bar 6. After pouring, the corrugated steel plate and the concrete layer form an integrated node, so that the transverse connecting plate 4 and the reinforcing steel bar 6 not only connect the relationship between each corrugated steel plate 1, but also are integrally embedded with the concrete layer.

[0037] In this embodiment, the transverse connecting plate 4 spans two or more corrugated steel units through the side plate notch 5, achieving an extension connection in the width direction; the reinforcing steel bar 6 passes through multiple corrugated steel units through the first through hole 7 and the second through hole 8, and is welded to each other at the ends, achieving an extension connection in the length direction; a concrete layer is poured at the ends to cover the corrugated steel plate 1, the side plate 2, the transverse connecting plate 4 and the reinforcing steel bar 6 together, which helps to reduce local stress concentration at the nodes and improve the overall rigidity.

[0038] By combining the features of the above embodiment 2, the transverse continuity of embodiment 1 is retained, and the reinforcing steel bars 6 and the overall concrete covering are introduced in the length direction, so that multiple corrugated steel units are continuously connected in two orthogonal directions, providing a reliable foundation structure for subsequent arch shells, box shapes or other combined structures.

[0039] For those skilled in the art, various improvements and modifications can be made without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. An extension connection structure for corrugated steel plates, characterized in that, Includes at least two transversely connected corrugated steel units; Each corrugated steel unit includes a side plate arranged along the perimeter, a corrugated steel plate arranged within the area enclosed by the side plate, and several transverse connecting plates arranged on the end face of the corrugated steel plate. Several of the transverse connecting plates are arranged parallel to each other along the width direction of the corrugated steel plate; A notch is provided on the side plate of each corrugated steel unit. A transverse connecting plate passes through the notch of the side plate of the corrugated steel unit along the width direction of the corrugated steel plate and extends out of the edge of the corrugated steel plate. The extended part of the transverse connecting plate extends into the notch of the side plate of the adjacent corrugated steel unit and is fixedly connected to the corrugated steel plate of the adjacent corrugated steel unit.

2. The extension connection structure of the corrugated steel plate according to claim 1, characterized in that, It also includes at least two longitudinally connected corrugated steel units, with at least one reinforcing bar in each group of corrugated steel units. The reinforcing bar extends along the length of the corrugated steel unit, and the end of the reinforcing bar extends out of the outer side of the corresponding corrugated steel unit and is welded to the end of the corresponding reinforcing bar in the adjacent group of corrugated steel units.

3. The extension connection structure of the corrugated steel plate according to claim 2, characterized in that, Multiple first through holes are spaced apart on each transverse connecting plate, and second through holes corresponding to the positions of the first through holes are provided on the side plate. At least one reinforcing bar passes through the first through hole and the second through hole in sequence.

4. The extension connection structure of the corrugated steel plate according to claim 1, characterized in that, Several bolt holes are provided on the side plate, and the side plates of adjacent corrugated steel units are aligned and connected by bolts.

5. The extension connection structure of the corrugated steel plate according to claim 1, characterized in that, A concrete pouring layer is provided on the end face of the corrugated steel unit, and the transverse connecting plate, reinforcing steel bars, corrugated steel plate and side plate are integrally covered with the concrete pouring layer.

6. The extension connection structure of the corrugated steel plate according to claim 1, characterized in that, The transverse connecting plate is an L-shaped steel component arranged along the width direction of the corrugated steel plate, and the lower flange of the L-shaped steel component is attached to and fixed to the end face of the corrugated steel plate.

7. The extension connection structure of the corrugated steel plate according to claim 1, characterized in that, The transverse connecting plate is a channel steel component arranged along the width direction of the corrugated steel plate, and the lower flange of the channel steel component is attached to and fixed to the end face of the corrugated steel plate.

8. The extension connection structure of the corrugated steel plate according to claim 1, characterized in that, The transverse connecting plate is fixed to the corrugated steel plate by several bolts.

9. The extension connection structure of the corrugated steel plate according to claim 1, characterized in that, The transverse connecting plate is welded and fixed to the corrugated steel plate.

10. The extension connection structure of the corrugated steel plate according to claim 1, characterized in that, The corrugated steel plate has a waveform that can be sinusoidal, triangular, trapezoidal, or right-angled.

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