A fully bolted honeycomb multi-layer H-shaped steel bridge structure and its assembly method

Abstract

The present invention discloses a fully bolted honeycomb-like multi-layer H-shaped steel bridge structure and an assembly method thereof. The honeycomb-like multi-layer H-shaped steel main beam is composed of the uppermost and lowermost continuous H-shaped steels and one or more layers of H-shaped steels arranged at a certain interval according to a certain rule or force characteristics in the middle, and the uppermost and lowermost layers use H-shaped steels of the same specification; the flanges of the longitudinal honeycomb-like multi-layer H-shaped steel main beam are connected by high-strength bolts, the solid-web H-shaped steel transverse support and the main beam are connected by web-inserted bolts, the transverse support web is extended to the main beam web, the main beam web and the transverse support web are connected by angle steel bolts, and the flanges are connected by cover plates, wherein the transverse support web is interrupted to ensure the integrity of the cover plate under the flange, and the transverse support and the main beam are rigidly connected. The present invention adopts fully bolted connection and a honeycomb-like multi-layer H-shaped steel structure, which has the advantages of simple construction, superior mechanical properties, beautiful appearance, simple structure, material saving, and simple selection.

Description

Technical Field

[0001] The invention discloses a fully bolt-connected honeycomb-type multi-layer H-shaped steel bridge structure and an assembly method thereof, belonging to the technical field of civil engineering assembled structures. Background Art

[0002] The technology of steel structure bridges is becoming more and more mature, but accidents caused by on-site welding and long construction periods seriously affect the economic benefits of enterprises. With the continuous advancement of my country's assembly process and the popularization of environmental protection concepts, steel structure bridges that require a large amount of on-site welding are facing huge pressure for improvement. Summary of the invention

[0003] The present invention overcomes the shortcomings of the prior art and provides a fully bolted honeycomb-like multi-layer H-shaped steel bridge structure and an assembly method thereof. The innovative use of a honeycomb-like multi-layer H-shaped steel composite structure not only simplifies the node design and facilitates full assembly, thus practicing the concept of green buildings, but also can significantly shorten the construction period and achieve huge economic benefits.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a fully bolted honeycomb multi-layer H-shaped steel bridge structure, including a main beam and a transverse support, a plurality of the main beams are longitudinally parallel and equidistantly arranged, and a plurality of transverse supports are arranged between the connected main beams;

[0005] The structure of the main beam body includes a main beam body, a connecting plate, and a cover plate. The main beam body and the connecting plate are both H-shaped steels. The two main beam bodies are arranged in parallel up and down on a vertical plane. A plurality of connecting plates are equidistantly arranged between the two main beam bodies. The widths of the main beam body and the connecting plate are equal. The main beam body and the connecting plate are longitudinally distributed so that the horizontal plates of the main beam body and the connecting plate can match and correspond. The main beam body and the connecting plate are correspondingly provided with a plurality of through holes on the horizontal plates of the connecting parts. The main beam body and the connecting plate are connected together by bolts. The cover plate is a plate-like structure including two specifications. The cover plates of the two specifications are regularly provided with a plurality of through holes, and the cover plates of the two specifications are arranged separately or in combination on the upper and lower sides of the horizontal plates of the connecting parts of the main beam body and the connecting plate. The cover plates are distributed in a matrix on the main beam body and are fixed to the main beam body and the connecting plate by bolts. The two cover plates cooperate with the side surfaces of the main beam body and / or the connecting plate to form a groove-type connecting groove.

[0006] The transverse support is an H-shaped steel structure, the length of the horizontal plate of the transverse support is less than the length of the vertical plate, the two ends of the horizontal plates of the transverse support can be matched and inserted into the connecting grooves of the two horizontal plates of the main beam body, and the vertical plate of the transverse support is matched and pressed against the vertical plate of the main beam body, and the multiple through holes arranged on the horizontal plate of the transverse support correspond to the through holes on the cover plate, and the transverse support is fixed to the cover plate by bolts;

[0007] An angle steel is matched with the intersection of the vertical plate of the transverse support and the vertical plate of the main beam body, and a plurality of through holes are arranged on the two side surfaces of the angle steel, and the through holes correspond to the through holes arranged on the vertical plate of the transverse support and the vertical plate of the main beam body, and the angle steel, the vertical plate of the transverse support and the vertical plate of the main beam body are fixed together by bolts, and a connecting support plate is horizontally arranged on the inner side of the two side plates of the angle steel, and the connecting support plate is integrally formed with the angle steel, and a through hole is arranged on the connecting support plate, and a connecting rod is connected between the two connecting support plates at the diagonal position in the same horizontal plane by bolts.

[0008] A reinforcing plate is matched between the two horizontal plates of the main beam body. The reinforcing plate is arranged perpendicular to the vertical plate of the main beam body and is welded and fixed together with the vertical plate of the main beam body.

[0009] The upper and lower sides of the vertical plate end of the transverse support are provided with steps, and the height of the step is equal to the thickness of the cover plate, so that the step and the horizontal plate of the transverse support form a slot that matches and is plugged into the cover plate.

[0010] The present invention relates to an assembly method for a fully bolted honeycomb multi-layer H-shaped steel bridge structure according to the claim, which is implemented according to the following steps:

[0011] The first step is the factory preparation stage;

[0012] Weld multiple reinforcing plates at equal intervals on the vertical plate on one side of the main beam body for later use, weld the connecting support plate on the inner side of the two side plates of the angle steel for later use; process the upper and lower sides of both ends of the vertical plate of the horizontal support for later use;

[0013] The second step is factory pre-assembly;

[0014] A plurality of equally spaced connection plates are fixed between the two main beam bodies by bolts, and cover plates are fixed at upper and lower positions on both sides of the horizontal plate of the main beam body at the location of the connection plates by bolts to form a main beam body;

[0015] The third step is the formal assembly of the actual installation site;

[0016] a. Arrange multiple main beams in parallel, and set multiple transverse supports between two adjacent main beams, and both ends of each transverse support are connected to the corresponding cover plate with bolts;

[0017] b. Angle steel is installed at the intersection of the transverse support and the main beam, and the angle steel is fixed to the transverse support and the main beam by bolts;

[0018] c. In the frame formed by the transverse support and the main beam, use connecting rods to bolt the two angle steels on the diagonal line together.

[0019] Both ends of the connecting rod are provided with connecting through holes corresponding to the connecting support plates, and in each frame surrounded by the transverse support and the main beam body, one connecting rod is fixed on the upper side of the connecting support plate, and the other connecting rod is fixed on the lower side of the corresponding diagonal connecting support plate.

[0020] The connecting rod is an angle steel structure.

[0021] Compared with the prior art, the present invention has the following beneficial effects.

[0022] 1) The present invention can realize full assembly and full bolt connection of steel bridges, so that zero welding is required at the construction site; compared with traditional structural forms, the quality of the present invention is more reliable;

[0023] (2) The invention has a high construction speed, which reduces the construction period from several years to several months. The faster construction speed can significantly reduce the cost of the enterprise and increase the social benefits of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is a structural schematic diagram of the main beam body in the present invention.

[0027] Figure 3 It is a schematic diagram of the lateral support in the present invention.

[0028] Figure 4 It is a schematic diagram of the connection between the transverse support and the main beam body in the present invention.

[0029] In the figure: 1 is the main beam body, 11 is the main beam body, 12 is the connecting plate, 13 is the cover plate, 14 is the connecting groove, 2 is the transverse support, 3 is the angle steel, 4 is the connecting support plate, 5 is the connecting rod, 6 is the reinforcing plate, and 7 is the step. DETAILED DESCRIPTION

[0030] like Figure 1 to Figure 4As shown, the present invention is a fully bolted honeycomb multi-layer H-shaped steel bridge structure, comprising a main beam body 1 and a transverse support 2, wherein a plurality of the main beam bodies 1 are longitudinally parallel and equidistantly arranged, and a plurality of transverse supports 2 are arranged between the connected main beam bodies 1;

[0031] The structure of the main beam body 1 includes a main beam body 11, a connecting plate 12, and a cover plate 13. The main beam body 11 and the connecting plate 12 are both H-shaped steels. The two main beam bodies 11 are arranged in parallel up and down on a vertical plane. A plurality of connecting plates 12 are equidistantly arranged between the two main beam bodies 11. The widths of the main beam body 11 and the connecting plate 12 are equal. The main beam body 11 and the connecting plate 12 are longitudinally distributed so that the horizontal plates of the main beam body 11 and the connecting plate 12 can match and correspond. The main beam body 11 and the connecting plate 12 are correspondingly provided with a plurality of through holes on the horizontal plates of the connecting parts. The main beam body 11 and the connecting plate 12 are connected together by bolts, the cover plate 13 is a plate-like structure including two specifications, and the cover plates 13 of the two specifications are regularly distributed with a plurality of through holes, and the cover plates 13 of the two specifications are arranged individually or in combination on the upper and lower sides of the horizontal plate of the connecting part of the main beam body 11 and the connecting plate 12, the cover plates 13 are distributed in a matrix on the main beam body 11 and are fixed to the main beam body 11 and the connecting plate 12 by bolts, and the two cover plates 13 cooperate with the side surfaces of the main beam body 11 and / or the connecting plate 12 to form a groove-shaped connecting groove 14;

[0032] The transverse support 2 is an H-shaped steel structure, the length of the horizontal plate of the transverse support 2 is less than the length of the vertical plate, and the two horizontal plate ends of the transverse support 2 can be matched and inserted into the connecting grooves 14 of the two horizontal plates of the main beam body 11, while the vertical plate of the transverse support 2 is matched and pressed against the vertical plate of the main beam body 11, and the multiple through holes arranged on the horizontal plate of the transverse support 2 correspond to the through holes on the cover plate 13, and the transverse support 2 is fixed to the cover plate 13 by bolts;

[0033] An angle steel 3 is matched and arranged at the intersection of the vertical plate of the transverse support 2 and the vertical plate of the main beam body 11. A plurality of through holes are arranged on the two side surfaces of the angle steel 3, and the through holes correspond to the through holes arranged on the vertical plate of the transverse support 2 and the vertical plate of the main beam body 11, and the angle steel 3 is fixed together with the vertical plate of the transverse support 2 and the vertical plate of the main beam body 11 by bolts. A connecting support plate 4 is horizontally arranged on the inner side of the two side plates of the angle steel 3, and the connecting support plate 4 is integrally formed with the angle steel 3. A through hole is arranged on the connecting support plate 4, and a connecting rod 5 is connected between two connecting support plates 4 at diagonal positions in the same horizontal plane by bolts.

[0034] A reinforcing plate 6 is matched between the two horizontal plates of the main beam body 11 . The reinforcing plate 6 is arranged perpendicular to the vertical plate of the main beam body 11 and is welded and fixed to the vertical plate of the main beam body 11 .

[0035] The upper and lower sides of the vertical plate end of the lateral support 2 are provided with steps 7, and the height of the step 7 is equal to the thickness of the cover plate 13, so that the step 7 and the horizontal plate of the lateral support 2 form a slot that matches and is plugged into the cover plate 13.

[0036] The present invention relates to an assembly method for a fully bolted honeycomb multi-layer H-shaped steel bridge structure according to the claim, which is implemented according to the following steps:

[0037] The first step is the factory preparation stage;

[0038] According to the design dimensions, corresponding parts are manufactured, and multiple reinforcing plates 6 are welded at equal intervals on a vertical plate on one side of the main beam body 11 for standby use, and the connecting support plate 4 is welded on the inner sides of the two side plates of the angle steel 3 for standby use; steps 7 are machined on the upper and lower sides of both ends of the vertical plate of the horizontal support 2 for standby use;

[0039] The second step is factory pre-assembly;

[0040] A plurality of equally spaced connecting plates 12 are fixed between the two main beam bodies 11 by bolts, and cover plates 13 are fixed at upper and lower positions on both sides of the horizontal plate of the main beam body 11 at the location of the connecting plates 12 by bolts to form the main beam body 1;

[0041] The third step is the formal assembly of the actual installation site;

[0042] a. Arrange multiple main beams 1 in parallel, and provide multiple lateral supports 2 between two adjacent main beams 1, and both ends of each lateral support 2 are connected to the corresponding cover plate 13 by bolts;

[0043] b. An angle steel 3 is set at the intersection of the lateral support 2 and the main beam body 1, and the angle steel 3 is fixed to the lateral support 2 and the main beam body 1 by bolts;

[0044] c. In the frame formed by the transverse support 2 and the main beam body 1, the two angle steels 3 on the diagonal are bolted together using a connecting rod 5.

[0045] Both ends of the connecting rod 5 are provided with connecting through holes corresponding to the connecting support plate 4, and in each frame surrounded by the transverse support 2 and the main beam body 1, one connecting rod 5 is fixed on the upper side of the connecting support plate 4, and the other connecting rod 5 is fixed on the lower side of the corresponding diagonal connecting support plate 4.

[0046] The connecting rod 5 is an angle steel structure.

[0047] The present invention will be further described below in conjunction with specific embodiments.

[0048] The present invention relates to a fully bolted honeycomb-like multi-layer H-shaped steel bridge structure, comprising a longitudinal honeycomb-like multi-layer H-shaped steel main beam, a solid-web H-shaped transverse support, and a solid-web angle steel oblique support, wherein the longitudinal honeycomb-like multi-layer H-shaped steel main beam is a new combination form, that is, the longitudinal honeycomb-like multi-layer H-shaped steel main beam comprises an uppermost layer and a lowermost layer of continuous H-shaped steel and an intermediate layer or layers of H-shaped steel arranged at a certain interval according to certain rules or force characteristics; the uppermost layer and the lowermost layer of H-shaped steel use the same specifications; the honeycomb-like multi-layer H-shaped steel main beam is arranged at a certain interval to form a longitudinal main force frame; the connection between the H-shaped steels adopts a fully bolted connection to meet the requirements of assembly.

[0049] In the above device, the solid-web H-shaped transverse support adopts an insert connection by extending the web to the web of the main beam, and the webs are connected with angle steel bolts; the flanges are connected with the cover plate, and in order to ensure the integrity of the lower cover plate, the transverse support web is interrupted to meet the space requirements of the cover plate;

[0050] Among them, the solid-web H-shaped transverse support has the same specifications as the longitudinal structure it is connected to, that is, the transverse support connected to the topmost or bottommost layer has the same specifications, and the transverse support connected to the middle layer has the same specifications as the middle layer.

[0051] In the above device, the cross plate is welded directly on the angle steel in the factory to connect the diagonal support.

[0052] In the above device, the above connection method is adopted and stiffening ribs are added at corresponding positions of the main beam to meet the lateral support rigidity requirements.

[0053] In the above device, the transverse support is arranged at the center of the middle layer of H-shaped steel to meet the structural stability and aesthetic functions.

[0054] The present invention relates to an assembly method for a fully bolted honeycomb-like multi-layer H-shaped steel bridge structure, which comprises the following steps: firstly, assembling and installing the honeycomb-like multi-layer H-shaped steel main beams, and connecting the flanges with bolts; then arranging the honeycomb-like multi-layer H-shaped steel main beams at a certain interval to form a longitudinal main force-bearing frame; then placing the solid-web H-shaped steel transverse supports at designated positions, and connecting the cover plates; then connecting the angle steel to the web plates; similarly connecting the next main beam to the transverse supports; and finally connecting the oblique supports to the angle steels, wherein all the above connections are made with high-strength bolts.

[0055] The above shows and describes the basic principle, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art and will not be described in detail here.

[0056] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A fully bolted honeycomb multi-layer H-shaped steel bridge structure, characterized in that: It comprises a main beam body (1) and a transverse support (2), wherein a plurality of the main beam bodies (1) are longitudinally arranged in parallel and equidistantly, and a plurality of transverse supports (2) are arranged between the connected main beam bodies (1); The structure of the main beam body (1) comprises a main beam body (11), a connecting plate (12), and a cover plate (13); the main beam body (11) and the connecting plate (12) are both H-shaped steels; two main beam bodies (11) are arranged in parallel up and down on a vertical plane; a plurality of connecting plates (12) are arranged equidistantly between the two main beam bodies (11); the widths of the main beam body (11) and the connecting plate (12) are equal; the main beam body (11) and the connecting plate (12) are both longitudinally distributed so that the horizontal plates of the main beam body (11) and the connecting plate (12) can match and correspond; the main beam body (11) and the connecting plate (12) are both correspondingly provided with a plurality of connecting plates on the horizontal plates of the connecting parts; The main beam body (11) and the connecting plate (12) are connected together by bolts, the cover plate (13) is a plate-like structure including two specifications, and the cover plates (13) of the two specifications are regularly provided with a plurality of through holes, and the cover plates (13) of the two specifications are arranged individually or in combination on the upper and lower sides of the horizontal plate of the connecting part of the main beam body (11) and the connecting plate (12), the cover plates (13) are distributed in a matrix on the main beam body (11) and are fixed to the main beam body (11) and the connecting plate (12) by bolts, and the two cover plates (13) cooperate with the side surfaces of the main beam body (11) and / or the connecting plate (12) to form a groove-shaped connecting groove (14); The transverse support (2) is an H-shaped steel structure. The length of the horizontal plate of the transverse support (2) is less than the length of the vertical plate. The two ends of the horizontal plates of the transverse support (2) can be matched and inserted into the connecting grooves (14) on the two horizontal plates of the main beam body (11). At the same time, the vertical plate of the transverse support (2) is matched and pressed against the vertical plate of the main beam body (11). The multiple through holes arranged on the horizontal plate of the transverse support (2) correspond to the through holes on the cover plate (13), and the transverse support (2) is fixed to the cover plate (13) by bolts. An angle steel (3) is matched and arranged at the intersection of the vertical plate of the transverse support (2) and the vertical plate of the main beam body (11); a plurality of through holes are arranged on the two side surfaces of the angle steel (3); and the through holes correspond to the through holes arranged on the vertical plate of the transverse support (2) and the vertical plate of the main beam body (11); the angle steel (3) is fixed to the vertical plate of the transverse support (2) and the vertical plate of the main beam body (11) by bolts; a connecting support plate (4) is horizontally arranged on the inner side of the two side plates of the angle steel (3); the connecting support plate (4) and the angle steel (3) are integrally formed; a through hole is arranged on the connecting support plate (4); and a connecting rod (5) is connected between two connecting support plates (4) at diagonal positions in the same horizontal plane by bolts.

2. The fully bolted honeycomb multi-layer H-shaped steel bridge structure according to claim 1, characterized in that: A reinforcing plate (6) is matched between the two horizontal plates of the main beam body (11); the reinforcing plate (6) is arranged perpendicular to the vertical plate of the main beam body (11) and is welded and fixed together with the vertical plate of the main beam body (11).

3. The fully bolted honeycomb multi-layer H-shaped steel bridge structure according to claim 2 is characterized in that: The upper and lower sides of the vertical plate end of the transverse support (2) are both provided with steps (7), and the height of the step (7) is equal to the thickness of the cover plate (13), so that the step (7) and the horizontal plate of the transverse support (2) form a slot that matches and is plugged into the cover plate (13).

4. An assembly method of a fully bolted honeycomb multi-layer H-shaped steel bridge structure according to claim 3, characterized in that: Follow these steps to implement: The first step is the factory preparation stage; A plurality of reinforcing plates (6) are welded at equal intervals on a vertical plate on one side of the main beam body (11) for standby use, and a connecting support plate (4) is welded on the inner sides of two side plates of the angle steel (3) for standby use; steps (7) are machined on the upper and lower sides of both ends of the vertical plate of the transverse support (2) for standby use; The second step is factory pre-assembly; A plurality of connection plates (12) distributed at equal intervals are fixedly arranged between two main beam bodies (11) by means of bolts, and cover plates (13) are fixedly arranged at upper and lower positions on both sides of the horizontal plate of the main beam body (11) at the location of the connection plates (12) by means of bolts, so as to form a main beam body (1); The third step is the formal assembly of the actual installation site; a. Arrange multiple main beams (1) in parallel, and provide multiple transverse supports (2) between two adjacent main beams (1), and both ends of each transverse support (2) are connected to the corresponding cover plate (13) by bolts; b. An angle steel (3) is provided at the intersection of the lateral support (2) and the main beam (1), and the angle steel (3) is fixed to the lateral support (2) and the main beam (1) by bolts; c. In the frame formed by the transverse support (2) and the main beam (1), two angle steels (3) on the diagonal line are bolted together using a connecting rod (5).

5. The assembly method of a fully bolted honeycomb multi-layer H-shaped steel bridge structure according to claim 4 is characterized in that: Both ends of the connecting rod (5) are provided with connecting through holes corresponding to the connecting support plates (4), and in each frame surrounded by the transverse support (2) and the main beam body (1), one connecting rod (5) is fixed on the upper side of the connecting support plate (4), and the other connecting rod (5) is fixed on the lower side of the corresponding diagonal connecting support plate (4).

6. The assembly method of a fully bolted honeycomb multi-layer H-shaped steel bridge structure according to claim 4, characterized in that: The connecting rod (5) is an angle steel structure.

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