CN219450406U - Steel structure composite beam and composite bridge - Google Patents
Steel structure composite beam and composite bridge Download PDFInfo
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- CN219450406U CN219450406U CN202320498742.6U CN202320498742U CN219450406U CN 219450406 U CN219450406 U CN 219450406U CN 202320498742 U CN202320498742 U CN 202320498742U CN 219450406 U CN219450406 U CN 219450406U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
The utility model discloses a steel structure composite beam and a composite bridge, wherein the steel structure composite beam comprises: a deck structure; the plurality of steel beams comprise webs, the upper ends of the webs are embedded into the bridge deck structure, open slots are formed in the upper ends of the webs, the upper ends of the open slots are open, and partial contours of the open slots are narrowed upwards; the splicing structure is used for splicing two adjacent steel beams; the positioning structure is used for forming positioning fit for two adjacent steel beams; wherein the bridge deck structure is provided with a limit structure filled in the open slot. According to the utility model, the web plate is directly embedded into the bridge deck structure, and the profile of the open slot part is narrowed upwards, so that the open slot of the web plate is in stronger limit fit with the limit structure, the connection strength is improved, the web plate is tightly and firmly connected with the bridge deck structure, an upper flange and a shear pin structure are not needed, steel is saved, welding steps are reduced, and cost is saved.
Description
Technical Field
The utility model relates to the technical field of bridge construction, in particular to a steel structure composite beam and a composite bridge.
Background
The traditional composite beam structure is formed by combining a steel structure and a concrete structure, and usually, the upper flange of the steel structure and the concrete bridge deck plate are combined by extending into the concrete bridge deck plate through shear nails welded on the upper flange, so that the performance of the steel material and the concrete material is fully exerted under the whole stress.
However, the shear nails are required to be welded on the upper flange one by one, the welding procedure and the cost are relatively high, and the welding positions of the shear nails and the upper flange have the risk of fatigue damage under the long-term action of load, so that the structural failure engineering is caused, and the reliability is general; in addition, if long steel beams are adopted for construction, the steel beams are too long, and inconvenience exists in construction and processing; if the sectional steel beam is adopted, the precision and the strength of the butt joint of the steel beams are difficult to ensure.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the steel structure composite beam provided by the utility model has the advantages of low cost and high reliability, and the precision and strength of the butt joint of the steel beams can be ensured.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a steel structure composite beam comprising: a deck structure; the plurality of steel beams comprise webs, the upper ends of the webs are embedded into the bridge deck structure, open grooves are formed in the upper ends of the webs, the upper ends of the open grooves are open, and partial outlines of the open grooves are narrowed upwards; the splicing structure is used for splicing two adjacent steel beams; the positioning structure is used for forming positioning fit for two adjacent steel beams; wherein the bridge deck structure is provided with a limiting structure filled in the open slot.
Further, the bottom of the steel beam is provided with a lower flange plate, and the web is vertically arranged in the middle of the lower flange plate.
Further, the splicing structure comprises a first rib plate and a second rib plate which are respectively arranged at two opposite ends of the steel beam, and the first rib plate and the second rib plate are provided with corresponding hole sites so that two adjacent steel beams can be spliced and fixed through fasteners.
Further, the first rib plate and the second rib plate are connected to the connecting corner of the web plate and the lower flange plate.
Further, the positioning structure comprises a convex structure and a concave structure which are respectively arranged on the first rib plate and the second rib plate, and the convex structure is matched with the concave structure in a concave-convex manner so as to realize positioning matching of adjacent steel beams.
Further, the convex structure is a positioning block arranged on the splicing surface of the first rib plate, and the concave structure is a positioning hole which is arranged on the second rib plate and corresponds to the positioning block.
Further, the first rib plate and the second rib plate are symmetrically arranged on two sides of the web plate; the width of the positioning hole is larger than that of the positioning block, so that when the positioning block is embedded into the positioning hole, the positioning block and the web plate have a distance.
Further, transverse steel bars are arranged on the limiting structure in a penetrating mode, longitudinal steel bars are embedded in the bridge deck structure, and the transverse steel bars are perpendicular to the longitudinal steel bars.
Further, a thickening protrusion is arranged at the joint of the bottom of the bridge deck structure and the upper end of the web plate.
The utility model also provides a composite bridge, comprising: the steel structure composite beam; and the bridge pier is used for bearing the steel structure composite beam.
The utility model has the following beneficial effects:
the web plate is directly embedded into the bridge deck structure, and the profile of the open slot part is narrowed upwards, so that the open slot of the web plate is in stronger limit fit with the limit structure, the connection strength is improved, the web plate is tightly and firmly connected with the bridge deck structure, an upper flange and a shear pin structure are not needed, steel is saved, welding steps are reduced, and cost is saved; and the splicing structure and the positioning structure are utilized to realize positioning and splicing between adjacent steel beams, so that the connection strength and the precision of the butt joint positions of the steel beams are ensured.
In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The present utility model will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is an isometric view of a steel structure composite beam of the present utility model;
FIG. 2 is an enlarged view at A of FIG. 1;
FIG. 3 is an exploded view of a splice of adjacent steel beams;
FIG. 4 is a schematic view of the structure of a steel beam;
FIG. 5 is a cross-sectional view of the mating of the open slot and the spacing structure;
FIG. 6 is an elevation view of a steel structure composite beam of the present utility model;
fig. 7 is a schematic structural view of the composite bridge of the present utility model.
Legend description:
bridge deck structure 100, limit structure 110, thickening protrusion 120;
steel beam 200, web 210, open slot 211, lower flange 220, first rib plate 230, positioning block 231, first connecting hole 232, second rib plate 240, positioning hole 241, and second connecting hole 242;
transverse rebar 300;
pier 400.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
Referring to fig. 1 and 2, a steel structure composite beam according to a preferred embodiment of the present utility model includes a deck structure 100, a steel beam 200, a splicing structure and a positioning structure.
The steel beams 200 are provided with a plurality of webs 210, the upper ends of the webs 210 are embedded into the bridge deck structure 100, open slots 211 are formed at the upper ends of the webs 210, the upper ends of the open slots 211 are open and partial contours of the open slots 211 are narrowed upwards, as shown in fig. 4, namely, partial contours of the open slots 211 are positioned below the openings and gradually narrowed upwards, namely, the width of the open slots 211 gradually becomes smaller when the open slots 211 gradually approach the openings from the middle upwards; the splicing structure is used for splicing two adjacent steel beams 200; the positioning structure is used for forming positioning fit for two adjacent steel beams 200; wherein the deck structure 100 is provided with a limiting structure 110 filled in the open slot 211.
According to the steel structure combined beam provided by the embodiment of the utility model, the web 210 is directly embedded into the bridge deck structure 100, and the profile of the open slot 211 is narrowed upwards, so that the open slot 211 and the limit structure 110 have stronger limit fit, the connection strength and reliability are improved, the web 210 and the bridge deck structure 100 are tightly and firmly connected, an upper flange and a shear pin structure are not needed, steel is saved, welding steps are reduced, and the cost is saved; the steel beam 200 is designed in a segmented way, so that the length of the steel beam 200 is reduced, and the steel beam is convenient to process, transport and construct; and utilize mosaic structure and location structure to make the location concatenation between the adjacent girder steel for girder steel butt joint department's joint strength and precision can be guaranteed, but two girder steel 200 are only contact, and butt joint department does not have joint strength, and the structure is loose.
Referring to fig. 2, in some embodiments of the present utility model, a bottom of a steel beam 200 is provided with a lower flange plate 220, a web 210 is vertically disposed in a middle of the lower flange plate 220, and the lower flange plate 220 increases a bearing surface of the bottom so that the bearing is stable.
Referring to fig. 2, in a further embodiment of the present utility model, the splicing structure includes a first rib 230 and a second rib 240 provided at opposite ends of the steel girder 200, respectively, i.e., the first rib 230 and the second rib 240 are provided at opposite ends of the steel girder 200, respectively, as shown in fig. 3, the first rib 230 is provided at a front end of the steel girder 200, and the second rib 240 is provided at a rear end of the steel girder 200. The first rib plates 230 and the second rib plates 240 are provided with corresponding hole positions so that two adjacent steel beams 200 can be spliced and fixed through fasteners, and when the two adjacent steel beams are spliced, the second rib plates 240 of the previous steel beam 200 are attached to the first rib plates 230 of the next steel beam 200, and the fasteners are installed in the corresponding holes, so that the connection and fixation of the butt joint positions of the adjacent steel beams can be realized, and the structural strength of the joint positions is ensured. The fasteners may be bolts and nuts that clamp the corresponding first and second webs 230, 240 together. Specifically, the first rib plate 230 is provided with a first connecting hole 232, the second rib plate 240 is provided with a second connecting hole 242, when the first rib plate 230 is connected with the corresponding second rib plate 240, the first connecting hole 232 is aligned with the second connecting hole 242 and is penetrated by a bolt, and then the adjacent steel beams 200 can be spliced by tightening nuts on the bolt. Preferably, in order to further improve the connection reliability, the joint of two adjacent steel beams 200 may be welded after the first rib plate 230 and the second rib plate 240 are fixedly connected.
Referring to fig. 2, in a further embodiment of the present utility model, the first rib plate 230 and the second rib plate 240 are connected to the connection corners of the web 210 and the lower flange plate 220, so that the first rib plate 230 and the second rib plate 240 can improve the structural strength of the connection between the web 210 and the lower flange plate 220; generally, the lower flange plate 220 is connected with the web 210 through welding, and the first rib plate 230 and the second rib plate 240 can improve the structural strength of the lower flange plate 220 and the web 210, reduce the possibility of failure at the welding position, and improve the structural reliability.
Specifically, the first rib plate 230 and the second rib plate 240 are right-angle triangular plates, and two right-angle edges are welded with the web 210 and the lower flange plate 220 respectively.
Referring to fig. 2 and 3, in a further embodiment of the present utility model, the positioning structure includes a male structure and a female structure provided to the first rib plate 230 and the second rib plate 240, respectively, which are mated concavely and concavely to achieve positioning mating of the adjacent steel beams 200; the first rib plate 230 and the second rib plate 240 are connected, the positioning structure is arranged on the first rib plate 230 and the second rib plate 240, the structure is more reasonable, and when the fastener is installed, the positioning fit of the convex structure and the concave structure can enable the hole positions of the first rib plate 230 and the second rib plate 240 to be aligned automatically, so that the subsequent installation of the fastener is facilitated.
Referring to fig. 2 and 3, in a further embodiment of the present utility model, the convex structure is a positioning block 231 provided on the splicing surface of the first rib 230, that is, the bonding surface when the first rib 230 is spliced with the corresponding second rib 240. The concave structure is a positioning hole 241 which is arranged on the second rib plate 240 and corresponds to the positioning block 231. Through the cooperation of locating piece 231 and locating hole 241, realize adjacent girder steel 200's location cooperation, improve girder steel 200 concatenation's precision.
In a further embodiment of the present utility model, the first rib plate 230 and the second rib plate 240 are symmetrically disposed on two sides of the web 210, so as to ensure structural strength of two sides of the web 210, and increase a connection position and enlarge a coverage area of the connection position and improve connection strength when the steel beam 200 is spliced. The width of the positioning hole 241 is greater than that of the positioning hole 231, so that when the positioning hole 231 is embedded into the positioning hole 241, the positioning hole 231 has a distance from the web 210, and therefore the positioning hole 231 avoids the welding position at the joint of the bottom of the web 210 and the lower flange plate 220, and avoids the welding seam interference formed by welding.
Referring to fig. 5, in some embodiments of the present utility model, a transverse reinforcement 300 is perforated on the limiting structure 110, so as to improve the structural strength of the limiting structure 110, and ensure the limiting fit between the limiting structure 110 and the open slot 211. The longitudinal steel bars are embedded in the bridge deck structure 100, the transverse steel bars 300 are perpendicular to the longitudinal steel bars, the bridge deck structure 100 is a stressed structure formed by combining concrete and the steel bar structure, the structural strength of the transverse steel bars 300 and the longitudinal steel bars in multiple directions is improved, and the service life and the bearing capacity of the bridge deck structure 100 are guaranteed.
Referring to fig. 6, a thickening protrusion 120 is disposed at a connection portion between the bottom of the bridge deck structure 100 and the upper end of the web 210, and the thickening protrusion 120 wraps the upper end of the web 210, so as to increase the wrapping range of the web 210, thereby increasing the structural strength of the connection portion between the upper end of the web 210 and the bottom of the bridge deck structure 100.
The utility model also provides a combined bridge, which comprises the steel structure combined beam and the bridge pier 400, wherein the bridge pier 400 is used for bearing the steel structure combined beam so as to support the steel structure combined beam.
The combined bridge provided by the embodiment of the utility model does not need to weld the shear pins on the upper flange, omits the upper flange and the shear pin structure, reduces processing procedures, saves steel materials, reduces cost, improves connection strength and reliability by utilizing the cooperation of the open slot 211 and the limiting structure 110, and is convenient for processing, transportation and construction by sections of steel beams.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A steel structure composite beam, comprising:
a deck structure (100);
the plurality of steel beams (200) comprise webs (210), the upper ends of the webs (210) are embedded into the bridge deck structure (100), open grooves (211) are formed in the upper ends of the webs (210), and the upper ends of the open grooves (211) are open and partially narrowed upwards in outline;
the splicing structure is used for splicing two adjacent steel beams (200);
the positioning structure is used for forming positioning fit for two adjacent steel beams (200);
wherein the bridge deck structure (100) is provided with a limiting structure (110) filled in the open groove (211).
2. The steel structure composite beam according to claim 1, wherein a lower flange plate (220) is arranged at the bottom of the steel beam (200), and the web (210) is vertically arranged in the middle of the lower flange plate (220).
3. The steel structure composite beam according to claim 2, wherein the splicing structure comprises a first rib plate (230) and a second rib plate (240) which are respectively arranged at two opposite ends of the steel beam (200), and the first rib plate (230) and the second rib plate (240) are provided with corresponding hole sites so that two adjacent steel beams (200) can be spliced and fixed through fasteners.
4. A steel structure composite beam according to claim 3, wherein the first web (230) and the second web (240) are connected at the connecting corners of the web (210) and the lower flange plate (220).
5. A steel structure composite beam according to claim 3, wherein the positioning structure comprises a male structure and a female structure provided on the first rib plate (230) and the second rib plate (240), respectively, the male structure and the female structure being in a male-female fit to achieve a positioning fit of adjacent steel beams (200).
6. The steel structure composite beam according to claim 5, wherein the convex structure is a positioning block (231) provided on the splicing surface of the first rib plate (230), and the concave structure is a positioning hole (241) provided on the second rib plate (240) and corresponding to the positioning block (231).
7. The steel structure composite beam according to claim 6, wherein the first rib plate (230) and the second rib plate (240) are symmetrically disposed on both sides of the web plate (210); the positioning hole (241) is wider than the positioning block (231), so that when the positioning block (231) is embedded into the positioning hole (241), the positioning block (231) and the web (210) have a distance.
8. The steel structure composite beam according to claim 1, wherein transverse steel bars (300) are arranged on the limiting structure (110) in a penetrating manner, longitudinal steel bars are embedded in the bridge deck structure (100), and the transverse steel bars (300) are arranged perpendicular to the longitudinal steel bars.
9. The steel structure composite beam according to claim 1, wherein the bottom of the deck structure (100) is provided with a thickening protrusion (120) at the connection with the upper end of the web (210).
10. A composite bridge, comprising:
a steel structure composite beam as claimed in any one of claims 1 to 9;
and the bridge pier (400) is used for bearing the steel structure composite beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320498742.6U CN219450406U (en) | 2023-03-13 | 2023-03-13 | Steel structure composite beam and composite bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320498742.6U CN219450406U (en) | 2023-03-13 | 2023-03-13 | Steel structure composite beam and composite bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219450406U true CN219450406U (en) | 2023-08-01 |
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ID=87410278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320498742.6U Active CN219450406U (en) | 2023-03-13 | 2023-03-13 | Steel structure composite beam and composite bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219450406U (en) |
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- 2023-03-13 CN CN202320498742.6U patent/CN219450406U/en active Active
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