CN219508358U - Connecting joint for assembled truss bridge - Google Patents
Connecting joint for assembled truss bridge Download PDFInfo
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- CN219508358U CN219508358U CN202320107398.3U CN202320107398U CN219508358U CN 219508358 U CN219508358 U CN 219508358U CN 202320107398 U CN202320107398 U CN 202320107398U CN 219508358 U CN219508358 U CN 219508358U
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Abstract
The utility model discloses a connecting joint for an assembled truss bridge, which comprises a first prefabricated part and a second prefabricated part, wherein a plurality of assembly nodes are formed between the first prefabricated part and the second prefabricated part; a second fitting located at the fitting node and connected to the second prefabricated element; one of the first assembly part and the second assembly part is fixed with a mounting part, and the other is fixed with an assembly part, and the mounting part and the assembly part are connected through a clamping groove; the installation part and the assembly part are connected to form a stress bearing structure, the stress bearing structure forms a dispersion surface, the dispersion surface is positioned at the assembly position of the first prefabricated component and the second prefabricated component, and the cross section area of the dispersion surface is larger than the cross section area of the assembly node.
Description
Technical Field
The utility model relates to the technical field of steel truss bridge connection in bridge engineering, in particular to a connecting joint for an assembled truss bridge.
Background
Along with the modern progress of cities and the high-speed development of economy, the assembled steel truss girder has the advantages of energy conservation, environmental protection, high construction speed, high industrialization degree and the like, and is a structure which is increasingly widely used in recent years in China. In general, assembled steel truss beams are prefabricated into unit components in factories and then transported to the site for assembly, and common connection modes of the unit components are welding, bolting and bolting, which are mature in connection application of the steel truss beam prefabricated components, but still have limitations. The welding can cause a large stress concentration phenomenon at the connecting node, and the fatigue resistance of the structure is reduced. Bolting can weaken the stressed area at the connection node to a great extent, reducing the strength and rigidity of the structure. In addition, the three modes have long time consumption in the field hoisting process and are difficult to position.
Disclosure of Invention
The utility model aims to provide a connecting joint for an assembled truss bridge, which is simple and easy to use, can solve the problem of on-site hoisting of prefabricated members of the assembled steel truss girder, and can greatly promote the application of the assembled steel truss girder.
In order to achieve the technical effects, the present utility model is realized by the following technical means.
The connecting joint for the assembled truss bridge comprises a first prefabricated part and a second prefabricated part, a plurality of assembling nodes are formed between the first prefabricated part and the second prefabricated part, and the connecting joint also comprises,
a first fitting located at the fitting node and connected to the first prefabricated element;
a second fitting located at the fitting node and connected to the second prefabricated element;
one of the first assembly part and the second assembly part is fixed with a mounting part, and the other is fixed with an assembly part, and the mounting part and the assembly part are connected through a clamping groove;
the installation part and the assembly part are connected to form a stress bearing structure, the stress bearing structure forms a dispersion surface, the dispersion surface is positioned at the assembly position of the first prefabricated component and the second prefabricated component, and the cross section area of the dispersion surface is larger than the cross section area of the assembly node.
In the technical scheme, the stress bearing structure is added, and concentrated stress at the assembly node is dispersed in the assembly of the prefabricated component, so that the stress area is increased, the strength and the rigidity of the whole structure are improved, and the safe use is ensured.
In the technical scheme, the whole assembly mode is simple, the direct clamping grooves are connected, compared with welding and the like, excessive hoisting is not needed, the assembly process is simple, the assembly speed of the steel truss is improved, and the characteristics and requirements of the steel truss during assembly are fully met.
As a further improvement of the utility model, the mounting part and the fitting part are both plate structures, one of the plate structures forms a protrusion, the other forms a groove structure matched with the protrusion, and the thickness of the protrusion is one third to two thirds of the thickness of the plate structure.
In this technical scheme, select for use the panel structure of easily obtaining, panel structure has certain thickness, and bearing strength etc. is bigger, and simultaneously, panel is relatively speaking, and the cross-sectional area is bigger, can carry out the dispersion in a large scale with the stress, compares in structures such as tubular product, and the area of stress is bigger. And the thickness is one third to two thirds, so that the contact thickness is larger, the contact surface and the contact depth are increased, and the assembly strength is high.
As a further development of the utility model, a guide is formed at the groove structure, which guide serves to guide the projection into the groove structure.
In this technical scheme, during the panel structure assembly, in order to improve assembly efficiency, so set up guide part, and then protruding and the assembly efficiency of recess can promote.
As a further improvement of the utility model, the groove structure is an inverted cone structure with wide upper part and narrow lower part.
In the technical scheme, if an inverted cone structure is utilized, a large stress concentration can be generated at a welding position according to a conventional common welding assembly mode, which is the principle of welding; in the prior common bolt connection mode, the area of a stressed node is reduced by a bolt hole, and the bearing performance is reduced; in addition, when the joints are stressed, stress can be evenly applied to the whole plate, and large stress concentration 3 can not be generated at the welding seam like welding. And the reverse taper structure is adopted, so that the mounting part and the assembly part can be connected more firmly compared with other structures.
As a further improvement of the utility model, the inverted cone structure is formed into an inverted cone structure with a trapezoid cross section, and the trapezoid is arranged in a penetrating manner along the height direction of the plate structure.
In this technical scheme, run through along the direction of height and set up for recess and bellied assembly length increase, guaranteed both zonulae occludens, especially when bearing stress, stress is equivalent to external force, easily disperses both etc. so the mode of connection of many places and multi-area helps improving whole joint strength this time.
As a further improvement of the utility model, the assembly node forms an assembly space, the first assembly part and the second assembly part are positioned in the assembly space, and the mounting part and the assembly part form a stress bearing structure filled in the assembly space and outwards extending to form an extension surface.
In the technical scheme, the assembly part is positioned in the assembly space, and the installation part and the assembly part are larger, so that the whole stress bearing is improved, and especially the stress concentration is carried out at the installation part and the assembly part, and the core needs to be dispersed.
As a further improvement of the utility model, a fixing member is also included for connection of the mounting portion and the fitting portion at the extension face.
In this technical scheme, in order to further strengthen the intensity of linking department, still increased the mounting, especially stress dispersion to the periphery, periphery junction is easily dispersed, has consequently increased the mounting alone and has carried out independent fixed here.
As a further improvement of the present utility model, the fixing member has a bolt structure, and a plurality of assembly holes are provided along the outer circumferences of the mounting portion and the assembly portion, respectively.
In the technical scheme, the bolt structure and the assembly hole are selected, the element is easy to obtain, the cost is low, the connection technology of the bolt structure is mature, and the operation is easy.
As a further improvement of the utility model, the first fitting and the second fitting are both rectangular steel pipe structures.
In this technical scheme, select for use rectangular steel pipe, and then the cross section of tubular product is the rectangle, and on the one hand, it welds with the panel structure easily, on the other hand, when assembling with the prefabrication, carries out the assembly that corresponds more easily.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic structural view of a connection joint for an assembled truss bridge provided by the utility model;
fig. 2 is an assembly view of a connection joint for an assembled truss bridge provided by the utility model;
FIG. 3 is a schematic diagram of an assembly node according to the present utility model;
FIG. 4 is an assembly view of a first preform and a second preform provided by the present utility model;
in the figure: 100. a first prefabricated member; 200. a second prefabricated member; 300. assembling the nodes; 400. a first fitting; 500. a second fitting; 600. a mounting part; 610. a protrusion; 700. an assembling portion; 710. a groove structure; 800. a fixing member; 810. and (5) assembling holes.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 to 4, the connection joint for the fabricated truss bridge of the present embodiment includes a first prefabricated member 100 and a second prefabricated member 200, a plurality of assembly nodes 300 are formed between the first prefabricated member 100 and the second prefabricated member 200, and further includes,
a first fitting 400 located at the fitting node 300 and connected to the first prefabricated element 100;
a second fitting 500 located at the fitting node 300 and connected with the second prefabricated element 200;
one of the first assembly 400 and the second assembly 500 is fixed with a mounting portion 600, the other is fixed with an assembly portion 700, and the mounting portion 600 and the assembly portion 700 are connected through a clamping groove;
the mounting portion 600 and the assembling portion 700 are connected to form a stress bearing structure, the stress bearing structure forms a dispersion surface, the dispersion surface is located at the assembling position of the first prefabricated component 100 and the second prefabricated component 200, and the cross-sectional area of the dispersion surface is larger than the cross-sectional area of the assembling node.
In the embodiment, the stress bearing structure is added, so that concentrated stress at the assembly node is dispersed in the assembly of the prefabricated component, the stress area is increased, the strength and the rigidity of the whole structure are improved, and the safe use is ensured.
In the embodiment, the whole assembly mode is simple, the direct clamping grooves are connected, compared with welding and the like, excessive hoisting is not needed, the assembly process is simple, the assembly speed of the steel truss is improved, and the characteristics and requirements of the steel truss during assembly are fully met.
In this embodiment, in use, first, the mounting portion 600 and the fitting portion 700 are welded to the first fitting 400 and the second fitting 500, respectively, so as to form a fixed connection; secondly, the first assembly part 400 and the second assembly part 500 are assembled, and at the moment, the first assembly part and the second assembly part are clamped by matching the grooves; again, the first fitting part 400 and the second fitting part 500 are assembled with the first prefabricated element 100 and the second prefabricated element 200, specifically, the first prefabricated element 100 and the second prefabricated element 200 have a plurality of assembly nodes, such as assembly points 400 and 500, and at the assembly points 400 and 500, the mounting part 600 and the mounting part 700 are welded on the first fitting part 400 and the second fitting part 500 respectively, so that fixed connection is formed; secondly, the first assembly part 400 and the second assembly part 500 are assembled, and at the moment, the first assembly part and the second assembly part are clamped by matching the grooves; this completes the connection at one assembly point. The other assembly points of the prefabricated elements 100 and 200 are identical to the connection of 400 and 500, and after all the assembly points are connected, the connection of the prefabricated elements 100 and 200 is completed.
Preferably, the mounting portion 600 and the fitting portion 700 are each of a plate structure in which one forms the protrusion 610 and the other forms the groove structure 710 that mates with the protrusion 610. In this embodiment, a readily available plate structure, such as a steel plate, is selected, and the plate structure has a certain thickness, specifically, the thickness of the protrusion is one third to two thirds of the thickness of the plate structure. The bearing strength and the like of the plate are relatively high, meanwhile, the cross section area of the plate is relatively large, the stress can be dispersed in a large range, and compared with structures such as pipes, the stress bearing area of the stress is larger.
In this embodiment, protruding structure is connected through the inclined plane between with the panel structure, and then makes between protruding structure and the panel structure form the contained angle, during the assembly, has further increased area of contact, in order to ensure that the assembly is firm, forms the acute angle between protruding structure and the panel structure.
To facilitate the insertion, guides are formed at the groove structures 710 for guiding the protrusions into the groove structures 710.
In this embodiment, when the plate structure is assembled, in order to improve the assembly efficiency, the guide portion is provided, and thus the assembly efficiency of the protrusion and the groove is improved.
Referring to the drawings, in this embodiment, the groove structure 710 is an inverted cone structure with a wide upper portion and a narrow lower portion.
In the technical scheme, if an inverted cone structure is utilized, a large stress concentration can be generated at a welding position according to a conventional common welding assembly mode, which is the principle of welding; in the prior common bolt connection mode, the area of a stressed node is reduced by a bolt hole, and the bearing performance is reduced; in addition, when the joints are stressed, stress can be evenly applied to the whole plate, and large stress concentration can not be generated at the welding seam like welding.
The inverted cone structure is adopted because the inverted cone structure can connect the mounting portion and the fitting portion more firmly than other structures.
Further, the inverted cone structure forms an inverted cone structure with a trapezoid cross section, and the trapezoid is arranged in a penetrating manner along the height direction of the plate structure.
During the in-service use assembly, run through along the direction of height and set up for recess and bellied assembly length increase, guaranteed both zonulae occludens, especially when bearing the stress, the stress is equivalent to external force, easily disperses both etc. so the mode of connection of many places and multi-area in this time helps improving whole joint strength.
Referring to fig. 2, in the trapezoid structure of the present embodiment, the length of the short side is at least half of that of the plate structure, and the angle formed between the oblique side and the short side is 40 ° to 60 °, so that a gentle oblique angle is formed, and assembly is easier.
When the two prefabricated components are assembled, an assembly space is formed at the assembly node 300, the first assembly member 400 and the second assembly member 500 are positioned in the assembly space, and the mounting part 600 and the assembly part 700 are filled in the assembly space and extend outwards to form a stress bearing structure of an extension surface.
In this embodiment, the assembly is located in the assembly space, and the mounting portion and the assembly portion are larger, so that the whole stress bearing is improved, and especially, the stress concentration is required to be dispersed at the mounting portion and the assembly portion where the stress is concentrated.
To ensure a secure connection, a fixing member 800 is further included, the fixing member 800 being used for connection of the mounting portion 600 and the fitting portion 700 at the extension surface.
In this embodiment, in order to further strengthen the strength of the joint, the fixing member, particularly, the stress is dispersed to the outer periphery, and the outer periphery joint is easily dispersed, so that the fixing member is separately added to perform separate fixing.
Preferably, the fixing member 800 has a bolt structure, and a plurality of assembly holes 810 are provided along the outer circumferences of the mounting portion 600 and the assembly portion 700, respectively.
In the embodiment, the bolt structure and the assembly hole are selected, the element is easy to obtain, the cost is low, the connection technology of the bolt structure is mature, and the operation is easy.
When selecting, the first assembly 400 and the second assembly 500 are both rectangular steel pipe structures.
In this embodiment, select rectangular steel pipe, and then the cross section of tubular product is the rectangle, and on the one hand, it welds with the panel structure easily, on the other hand, when assembling with the prefabrication, carries out corresponding assembly more easily.
Referring to fig. 1-3, the novel prefabricated steel truss girder component connecting joint comprises 2 prefabricated components consisting of rectangular steel pipes, 1 pair of mounting parts and assembly parts consisting of connecting steel plates with trapezoid slots and trapezoid protruding parts, and 4 bolts. In order to achieve the assembly, in the present embodiment, the assembly part 700 of the steel plate with the trapezoidal inserting groove is welded at the cross section of the second prefabricated member 200 of one rectangular steel pipe, the installation part 600 of the steel plate with the trapezoidal protruding portion is welded at the cross section of the first prefabricated member 100 of the other rectangular steel pipe, then the steel plate-rectangular steel pipe with the trapezoidal protruding portion is inserted into the steel plate-rectangular steel pipe with the trapezoidal inserting groove, and finally the steel plates are connected by 4 bolts.
The utility model can improve the assembly speed of the steel truss girder, fully adapt to the characteristics and the requirements of the assembled steel truss girder, reduce the stress deformation of the connecting nodes of the prefabricated members of the steel truss girder, improve the strength and the rigidity of the structure, reduce the stress concentration phenomenon of the connecting nodes and improve the fatigue resistance of the system.
The above description is only of the preferred embodiments 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 (9)
1. The connecting joint for the assembled truss bridge comprises a first prefabricated part and a second prefabricated part, wherein a plurality of assembling nodes are formed between the first prefabricated part and the second prefabricated part,
a first fitting located at the fitting node and connected to the first prefabricated element;
a second fitting located at the fitting node and connected to the second prefabricated element;
one of the first assembly part and the second assembly part is fixed with a mounting part, and the other is fixed with an assembly part, and the mounting part and the assembly part are connected through a clamping groove;
the installation part and the assembly part are connected to form a stress bearing structure, the stress bearing structure forms a dispersion surface, the dispersion surface is positioned at the assembly position of the first prefabricated component and the second prefabricated component, and the cross section area of the dispersion surface is larger than the cross section area of the assembly node.
2. The connection joint for fabricated truss bridges of claim 1, wherein the mounting portion and the mounting portion are each of a plate structure, one of the plate structures forms a protrusion, the other forms a groove structure that mates with the protrusion, and the thickness of the protrusion is one third to two thirds of the thickness of the plate structure.
3. The connection joint for fabricated truss bridges of claim 2, wherein a guide portion is formed at the groove structure, the guide portion for guiding the protrusion into the groove structure.
4. A connection joint for fabricated truss bridges as in claim 3, wherein said groove structure is an inverted cone structure with a wide upper portion and a narrow lower portion.
5. The connection joint for fabricated truss bridges of claim 4, wherein the inverted cone structure is formed in an inverted cone structure having a trapezoid cross section, and the trapezoid is penetratingly disposed along a height direction of the plate structure.
6. The connection joint for fabricated truss bridges of claim 1, wherein the assembly node forms an assembly space, the first fitting and the second fitting are located in the assembly space, and the mounting portion and the fitting form a stress-carrying structure that fills the assembly space and extends outward to form an extension surface.
7. The connection joint for a fabricated truss bridge according to claim 6, further comprising a fixing member for connecting the mounting portion and the fitting portion at the extension surface.
8. The connection joint for fabricated truss bridges of claim 7, wherein the fixing member is of a bolt structure, and a plurality of assembly holes are provided along the outer circumferences of the mounting portion and the assembly portion, respectively.
9. The connection joint for fabricated truss bridges of claim 1, wherein the first fitting and the second fitting are each rectangular steel tube structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320107398.3U CN219508358U (en) | 2023-02-03 | 2023-02-03 | Connecting joint for assembled truss bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320107398.3U CN219508358U (en) | 2023-02-03 | 2023-02-03 | Connecting joint for assembled truss bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219508358U true CN219508358U (en) | 2023-08-11 |
Family
ID=87526631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320107398.3U Active CN219508358U (en) | 2023-02-03 | 2023-02-03 | Connecting joint for assembled truss bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219508358U (en) |
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2023
- 2023-02-03 CN CN202320107398.3U patent/CN219508358U/en active Active
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