End plate connecting I-shaped steel beam joint structure

Abstract

The utility model discloses an end plate connection I-shaped steel beam node structure, which relates to the technical field of steel beam connection, and comprises a first I-shaped steel beam, a second I-shaped steel beam, a third I-shaped steel beam, a third I-shaped steel beam, a fourth I-shaped steel beam and a fourth I-shaped steel beam, the second I-shaped steel beam comprises a second web plate, and a third flange and a fourth flange which are positioned on two sides of the second web plate; the first flange end plate is connected to the upper parts of the first flange end part and the first web end part; the second flange end plate is connected to the lower part of the second flange end part and the lower part of the first web end part; a first web end plate; a third flange end plate; and the like. The problems that when large-section I-shaped steel beams are spliced, traditional end plate connection is adopted, so that welding seams are too long, end plate welding deformation is large, and the contact face is not flat can be solved, meanwhile, the first web end plate and / or the second web end plate can be thinned, and the using amount of steel is reduced under the condition that the strength requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of steel beam connection, in particular to an I-beam node structure connected with an end plate. Background Art

[0002] With the rapid economic development and the increasing emphasis on environmental protection, the production methods of the traditional construction industry no longer meet the needs of the transformation and upgrading of the construction industry. In the previous construction methods, most of the work was done manually on the construction site. The on-site labor intensity and manpower consumption were high. Due to the uneven technical capabilities of the personnel, it was difficult to ensure the construction quality. In addition, the construction site conditions were poor, the waste of building materials was serious, and a lot of construction waste was generated on site, which had a great impact on the surrounding environment. With the continuous increase in labor costs, the on-site construction production method based on low labor prices is increasingly challenged, and the prefabricated assembly production method has received more and more attention from the industry in recent years.

[0003] Steel structure has good machining performance, is easy to assemble, is lightweight and high-strength, and can better realize the modularization, standardization, factoryization, assembly and informatization of buildings. Its application in prefabricated buildings is gradually increasing. Steel structure profile raw materials need to be connected to change lengths or components need to be transported and installed in sections. Various types of profiles or components require splicing on site. Connection nodes are key parts for bearing and force transmission. Reasonable connection structures and nodes require not only to meet the requirements of modern construction technology and industrialization, but also to have good energy consumption capacity and ensure mechanical properties such as strength and stiffness. However, in practical applications, prefabricated steel structure node connections that can be easily and quickly constructed are rare.

[0004] Common steel structure connection forms include welding, high-strength bolt connection and bolt-weld mixed connection. Among them, high-strength bolt end plate connection is a widely used, convenient and important component assembly connection form. High-strength bolt end plate connection usually welds the end plate to the steel beam in the factory, and then connects the steel column flange (beam-column connection) or end plate (beam-beam splicing) on ​​site with high-strength bolts. It is mainly used for H-shaped steel or I-section steel frames, beam-column connections, beam-beam splicing, etc. in portal frame light steel structures. Utility Model Content

[0005] The applicant found that the traditional end plate connection is a node form that uses a welded steel plate (end plate) at the end of a component to connect the column flange or beam end plate through bolts, where most of the bolts are high-strength bolts to improve the connection bearing capacity and connection stiffness. The traditional end plate connection generally has two structural forms, one is the extended type, that is, the end plate extends out of the flange of the beam, the high-strength bolts are concentrated around the flange, and the extended part is usually provided with stiffening ribs; the other is the flush type, that is, the high-strength bolts are arranged between the two flanges.

[0006] The traditional end plate connection welds a whole end plate to the end of the I-beam. This method has the problem of large welding volume and long welds, which leads to large deformation of the end plate welding. At the same time, there are errors in the opening of the bolt holes and the problem of uneven bolt holes, which will cause uneven contact surfaces of the end plates during on-site construction, causing construction difficulties. Especially when large-section components are spliced, if the traditional end plate connection method is used, the above problems become more prominent.

[0007] According to the calculation assumptions of friction-type high-strength bolt end plate connections in some industry technical specifications and standards, when the node is subjected to bending moment, the bolts at the steel beam flange far away from the neutral axis (bolt centroid) bear greater tension, while the bolts at the steel beam web close to the neutral axis bear less tension. The traditional end plate connection uses a whole steel plate as the end plate, and the bolts at the flange and the web are made of high-strength bolts of the same specification. This practice is not economical.

[0008] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiment of the utility model is to provide an end plate connected to an I-beam node structure, which can solve the problems of too long welds, large end plate welding deformation, and uneven contact surface caused by traditional end plate connections when splicing large-section I-beams. At the same time, the first web end plate and / or the second web end plate can be made thinner, thereby saving steel usage while meeting strength requirements.

[0009] The specific technical solution of the embodiment of the utility model is:

[0010] An end plate connected to an I-beam node structure, the end plate connected to an I-beam node structure comprising:

[0011] a first I-beam, the first I-beam comprising a first web, a first flange and a second flange located on both sides of the first web;

[0012] a second I-beam, the second I-beam comprising a second web, a third flange and a fourth flange located on both sides of the second web;

[0013] a first flange end plate connected to an upper portion of the first flange end and the first web end;

[0014] a second flange end plate connected to the lower portion of the second flange end and the first web end;

[0015] a first web end plate connected between an upper portion and a lower portion of an end portion of the first web;

[0016] A third flange end plate connected to an upper portion of the third flange end and the second web end;

[0017] a fourth flange end plate connected to the fourth flange end and the lower portion of the second web end;

[0018] a second web end plate connected to an area between an upper portion and a lower portion of an end portion of the second web;

[0019] Wherein, the first flange end plate and the third flange end plate are relatively fitted and connected through a fixing assembly;

[0020] The second flange end plate is relatively fitted with the fourth flange end plate and connected via a fixing assembly;

[0021] The first web end plate and the second web end plate are relatively fitted and connected via a fixing assembly;

[0022] The thickness of the first flange end plate is greater than the thickness of the first web end plate, and the thickness of the second flange end plate is greater than the thickness of the first web end plate; and / or the thickness of the third flange end plate is greater than the thickness of the second web end plate, and the thickness of the fourth flange end plate is greater than the thickness of the second web end plate.

[0023] Preferably, the fixing assembly comprises a bolt and a nut, wherein the bolt passes through two end plates to be connected and locks the two end plates through the nut.

[0024] Preferably, the first flange and the first web are perpendicular to the first flange end plate, and the first flange, the first web and the first flange end plate are connected by welding;

[0025] The second flange and the first web are perpendicular to the second flange end plate, and the second flange, the first web and the second flange end plate are connected by welding;

[0026] The first web end plate is perpendicular to the first web, and the first web end plate is connected to the first web by welding.

[0027] Preferably, the third flange and the second web are perpendicular to the third flange end plate, and the third flange, the second web and the third flange end plate are connected by welding;

[0028] The fourth flange and the second web are perpendicular to the fourth flange end plate, and the fourth flange, the second web and the fourth flange end plate are connected by welding;

[0029] The second web end plate is perpendicular to the second web, and the second web end plate is connected to the second web by welding.

[0030] Preferably, the specification grade of the bolts connecting the first web end plate and the second web end plate is lower than the specification grade of the bolts connecting the first flange end plate and the third flange end plate.

[0031] Preferably, the specification grade of the bolts connecting the first web end plate and the second web end plate is lower than the specification grade of the bolts connecting the second flange end plate and the fourth flange end plate.

[0032] Preferably, a first stiffening rib is connected between a side of the first flange facing away from the first web and a side of the first flange end plate facing the first flange by welding;

[0033] A second stiffening rib is connected between a side of the second flange facing away from the first web and a side of the second flange end plate facing the first flange by welding;

[0034] A third stiffening rib is connected between a side of the third flange facing away from the second web plate and a side of the third flange end plate facing the third flange by welding;

[0035] A fourth stiffening rib is connected between a side of the fourth flange facing away from the second web and a side of the fourth flange end plate facing the fourth flange by welding.

[0036] Preferably, fifth stiffening ribs are respectively connected between two sides of the first web and one side of the first web end plate facing the first web by welding;

[0037] Sixth stiffening ribs are connected between two sides of the second web and one side of the second web end plate facing the second web by welding.

[0038] Preferably, a transition gap is provided between a region of the end of the first web connected to the first web end plate and a region of the end of the first web connected to the first flange end plate;

[0039] A transition gap is provided between a region of an end portion of the first web connected to the first web end plate and a region of an end portion of the first web connected to the second flange end plate;

[0040] A transition gap is provided between a region of an end portion of the second web connected to the second web end plate and a region of an end portion of the second web connected to the third flange end plate;

[0041] A transition gap is provided between a region of an end portion of the second web connected to the second web end plate and a region of an end portion of the second web connected to the fourth flange end plate.

[0042] Preferably, the transition notch is partially circular.

[0043] Preferably, there are multiple fixing components;

[0044] The fixing assembly is disposed on the first flange end plates above and below the first flange;

[0045] The fixing components are arranged on the first flange end plates on both sides of the first web;

[0046] The fixing assembly is disposed on the second flange end plates above and below the second flange;

[0047] The fixing components are arranged on the second flange end plates on both sides of the first web;

[0048] The fixing components are arranged on the first web end plates on both sides of the first web.

[0049] Preferably, the bolts are friction type high-strength bolts or pressure type high-strength bolts.

[0050] The technical solution of the utility model has the following significant beneficial effects:

[0051] 1. Compared with the traditional end plate connection form, the present application has significant technical advantages in large-section connection, and can effectively solve the problems of excessive welding deformation and uneven contact surface when welding large-section I-beams and end plates.

[0052] 2. The end plate connection I-beam node structure in this application can be used to conveniently and quickly install and disassemble components, effectively avoiding a large amount of on-site welding, and can ensure the quality of on-site connections, reduce the labor intensity of the construction site, shorten the construction period and significantly reduce the cost.

[0053] 3. According to the characteristics of the connection force, the present application can set the flange end plate to a thicker steel plate and the web end plate to a thinner steel plate, thereby improving the utilization rate of materials, reducing the amount of steel used for the connection, and being more economical and environmentally friendly; and the node structure of the end plate connecting the I-beam has clear force transmission, meeting the node connection design requirements.

[0054] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Features described and / or shown for one embodiment can be used in one or more other embodiments in the same or similar manner, combined with features in other embodiments, or replace features in other embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. Under the guidance of the present invention, those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances.

[0056] Figure 1 It is a front view of the node structure of the end plate connected to the I-beam in the embodiment of the utility model;

[0057] Figure 2 This is an exploded view of the node structure of the end plate connected to the I-beam in the embodiment of the utility model;

[0058] Figure 3 It is a side view of the node structure of the end plate connected to the I-beam in the embodiment of the utility model.

[0059] Reference numerals in the above drawings:

[0060] 1. First I-beam; 11. First web; 12. First flange; 13. Second flange; 2. Second I-beam; 21. Second web; 22. Third flange; 23. Fourth flange; 3. First flange end plate; 4. First web end plate; 5. Second flange end plate; 6. Third flange end plate; 7. Second web end plate; 8. Fourth flange end plate; 9. Fixing assembly; 91. Opening; 10. Transition notch; 201. First stiffening rib; 202. Second stiffening rib; 203. Third stiffening rib; 204. Fourth stiffening rib; 205. Fifth stiffening rib; 206. Sixth stiffening rib. DETAILED DESCRIPTION

[0061] In combination with the accompanying drawings and the description of the specific embodiments of the present invention, the details of the present invention can be more clearly understood. However, the specific embodiments of the present invention described herein are only used to explain the purpose of the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be regarded as belonging to the scope of the present invention. It should be noted that when an element is referred to as "disposed on" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation method.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0063] In order to solve the problems of too long welds, large end plate welding deformation and uneven contact surface caused by traditional end plate connection when splicing large-section I-beams, the first web end plate and / or the second web end plate can be made thinner to save steel while meeting the strength requirements. In this application, an I-beam node structure connected by an end plate is proposed. Figure 1 This is a front view of the node structure of the end plate connected to the I-beam in the embodiment of the utility model. Figure 2 This is an exploded view of the node structure of the end plate connected to the I-beam in the embodiment of the utility model. Figure 3 FIG. 1 is a side view of the node structure of the end plate connected to the I-beam in the embodiment of the utility model. Figures 1 to 3 As shown, the end plate connected I-beam node structure may include: a first I-beam 1, a second I-beam 2, a first flange end plate 3, a second flange end plate 5, a first web end plate 4, a third flange end plate 6, a fourth flange end plate 8 and a second web end plate 7.

[0064] Among them, Figures 1 to 3As shown, the first I-beam 1 includes a first web 11, a first flange 12 and a second flange 13 located on both sides of the first web 11. The second I-beam 2 includes a second web 21, a third flange 22 and a fourth flange 23 located on both sides of the second web 21. The first web 11, the first flange 12 and the second flange 13 located on both sides of the first web 11 can be welded in a certain welding sequence to form the first I-beam 1. Alternatively, the first I-beam 1 can be directly made of hot-rolled H-shaped steel. Similarly, the second web 21, the third flange 22 and the fourth flange 23 located on both sides of the second web 21 can be welded in a certain welding sequence to form the first I-beam 1. Alternatively, the second I-beam 2 can be directly made of hot-rolled H-shaped steel.

[0065] like Figures 1 to 3 As shown, the first flange end plate 3 is connected to the upper part of the end of the first flange 12 and the end of the first web 11. The second flange end plate 5 is connected to the lower part of the end of the second flange 13 and the end of the first web 11. The first web end plate 4 is connected to the area between the upper and lower parts of the end of the first web 11.

[0066] As feasible, Figures 1 to 3 As shown, the first flange 12 and the first web 11 may be perpendicular to the first flange end plate 3. The first flange 12, the first web 11 and the first flange end plate 3 may be connected by welding. As feasible, the second flange 13 and the first web 11 are perpendicular to the second flange end plate 5. The second flange 13, the first web 11 and the second flange end plate 5 are connected by welding. As feasible, the first web end plate 4 is perpendicular to the first web 11. The first web end plate 4 and the first web 11 are connected by welding.

[0067] The welding connection between the first flange end plate 3, the second flange end plate 5 and the first web end plate 4 and the first I-beam beam 1 can be completed in advance in the factory.

[0068] like Figures 1 to 3 As shown, the third flange end plate 6 is connected to the upper part of the end of the third flange 22 and the end of the second web 21. The fourth flange end plate 8 is connected to the lower part of the end of the fourth flange 23 and the end of the second web 21. The second web end plate 7 is connected to the area between the upper and lower parts of the end of the second web 21.

[0069] As feasible, Figures 1 to 3As shown, the third flange 22 and the second web 21 are perpendicular to the third flange end plate 6. The third flange 22, the second web 21 and the third flange end plate 6 are connected by welding. As feasible, the fourth flange 23 and the second web 21 are perpendicular to the fourth flange end plate 8. The fourth flange 23, the second web 21 and the fourth flange end plate 8 are connected by welding. As feasible, the second web end plate 7 is perpendicular to the second web 21. The second web end plate 7 and the second web 21 are connected by welding.

[0070] The welding connection between the third flange end plate 6, the fourth flange end plate 8 and the second web end plate 7 and the second I-beam beam 2 can be completed in advance in the factory.

[0071] As a possibility, both the flange end plates and the web end plates may be made of steel plates to ensure strength.

[0072] When the first I-beam 1 and the second I-beam 2 need to be butt-connected together, Figures 1 to 3 As shown, the first flange end plate 3 and the third flange end plate 6 are relatively fitted and connected by a fixing component 9; the second flange end plate 5 and the fourth flange end plate 8 are relatively fitted and connected by a fixing component 9; the first web end plate 4 and the second web end plate 7 are relatively fitted and connected by a fixing component 9.

[0073] As a feasible method, the fixing assembly 9 may include bolts and nuts, wherein the bolts pass through the two end plates to be connected and lock the two end plates through the nuts. Furthermore, the bolts may preferably be friction-type high-strength bolts or pressure-type high-strength bolts.

[0074] As feasible, the specification level of the friction type high-strength bolts or pressure type high-strength bolts connecting the first web end plate 4 and the second web end plate 7 can be lower than the specification level of the friction type high-strength bolts or pressure type high-strength bolts connecting the first flange end plate 3 and the third flange end plate 6. The specification level of the friction type high-strength bolts or pressure type high-strength bolts connecting the first web end plate 4 and the second web end plate 7 can be lower than the specification level of the friction type high-strength bolts or pressure type high-strength bolts connecting the second flange end plate 5 and the fourth flange end plate 8.

[0075] As feasible, the thickness of the first flange end plate 3 may be greater than the thickness of the first web end plate 4, and the thickness of the second flange end plate 5 may be greater than the thickness of the first web end plate 4. The thickness of the third flange end plate 6 may be greater than the thickness of the second web end plate 7, and the thickness of the fourth flange end plate 8 may be greater than the thickness of the second web end plate 7.

[0076] In order to improve the strength of the first flange end plate 3 connected to the upper part of the first flange 12 end and the first web 11 end, as shown in FIG. Figures 1 to 3As shown, a first stiffening rib 201 is connected by welding between the side of the first flange 12 away from the first web 11 and the side of the first flange end plate 3 facing the first flange 12. Similarly, a second stiffening rib 202 is connected by welding between the side of the second flange 13 away from the first web 11 and the side of the second flange end plate 5 facing the first flange 12. A third stiffening rib 203 is connected by welding between the side of the third flange 22 away from the second web 21 and the side of the third flange end plate 6 facing the third flange 22. A fourth stiffening rib 204 is connected by welding between the side of the fourth flange 23 away from the second web 21 and the side of the fourth flange end plate 8 facing the fourth flange 23.

[0077] In order to improve the strength of the area between the upper and lower parts of the first web end plate 4 connected to the end of the first web 11, as shown in FIG. Figures 1 to 3 As shown, the first web 11 is connected to the first web end plate 4 facing the first web 11 by welding with fifth stiffening ribs 205 on both sides. Similarly, the second web 21 is connected to the second web end plate 7 facing the second web 21 by welding with sixth stiffening ribs 206 on both sides.

[0078] As a feasible method, the above-mentioned stiffening rib welding connection can be completed in advance in the factory, so as to facilitate the quick and convenient construction connection between the first I-beam 1 and the second I-beam 2 at the construction site later. Similarly, the openings 91 on the flange end plates and the web end plates can be completed in advance in the factory for later bolt connection.

[0079] As feasible, Figures 1 to 3As shown, there is a transition notch 10 between the end area of ​​the first web 11 connected to the first web end plate 4 and the end area of ​​the first web 11 connected to the first flange end plate 3. There is a transition notch 10 between the end area of ​​the first web 11 connected to the first web end plate 4 and the end area of ​​the first web 11 connected to the second flange end plate 5. There is a transition notch 10 between the end area of ​​the second web 21 connected to the second web end plate 7 and the end area of ​​the second web 21 connected to the third flange end plate 6. There is a transition notch 10 between the end area of ​​the second web 21 connected to the second web end plate 7 and the end area of ​​the second web 21 connected to the fourth flange end plate 8. Through the above structure, a certain gap can be left at the junction between the flange end plate and the web end plate, for example, the gap can be between 10mm and 50mm. Further, the transition notch 10 can be partially circular. The diameter of the circle can be between 100mm and 150mm. The above structure can effectively prevent the deformation generated during welding between the flange end plate and the web end plate from affecting the adjacent flange end plate and web end plate, resulting in serious deformation of the adjacent flange end plate and web end plate. When two I-beams are butt-jointed, the contact surfaces of the relative flange end plates or web end plates are uneven and cannot fit tightly, resulting in reduced connection strength.

[0080] In order to ensure that the fixing assembly 9 firmly connects the opposite flange end plates or web end plates so that there is sufficient strength between the two, there are multiple fixing assemblies 9. Figures 1 to 3 As shown, fixing components 9 are provided on the first flange end plates 3 above and below the first flange 12. Fixing components 9 are provided on the first flange end plates 3 on both sides of the first web 11. Fixing components 9 are provided on the second flange end plates 5 above and below the second flange 13. Fixing components 9 are provided on the second flange end plates 5 on both sides of the first web 11. Fixing components 9 are provided on the first web end plates 4 on both sides of the first web 11. Multiple fixing components 9 on the first web end plates 4 on both sides of the first web 11 can be arranged in the vertical direction, and at the same time, multiple fixing components 9 on the first web end plates 4 on both sides of the first web 11 can be arranged in the horizontal direction.

[0081] For example, the steel beams required for portal frames are usually long, and the components need to be transported and installed in sections. Various types of materials or components are required to be spliced ​​on site, and the connection nodes are the key parts for bearing and transmitting force. The end plate connection I-beam node structure in this application can be used to conveniently and quickly install and disassemble components, effectively avoiding a large amount of on-site welding, and can ensure the quality of on-site connections, reduce the labor intensity on the construction site, shorten the construction period and significantly reduce the cost.

[0082] Compared with the traditional end plate connection form, the present application has significant technical advantages in large-section connection, and can effectively solve the problem of excessive welding deformation and uneven contact surface when welding large-section I-beams and end plates. At the same time, according to the characteristics of the connection force, the flange end plate can be set as a thicker steel plate, and the web end plate can be set as a thinner steel plate, so as to improve the utilization rate of materials, reduce the amount of steel used for connection, and be more economical and environmentally friendly; and the end plate connection I-beam node structure has clear force transmission, which meets the node connection design requirements. In addition, according to the characteristics of the connection force, the specification grade of the friction type high-strength bolts or pressure type high-strength bolts connecting the first web end plate 4 and the second web end plate 7 can be lower than the specification grade of the friction type high-strength bolts or pressure type high-strength bolts connecting the first flange end plate 3 and the third flange end plate 6, and the specification grade of the friction type high-strength bolts or pressure type high-strength bolts connecting the second flange end plate 5 and the fourth flange end plate 8, so as to give full play to the performance of the bolts and avoid waste on the basis of ensuring the connection strength.

[0083] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for various purposes. The term "consisting essentially of ... " describing a combination should include determined elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel features of the combination. The use of the terms "comprising" or "including" to describe the combination of elements, ingredients, parts or steps here also contemplates the implementation method consisting essentially of these elements, ingredients, parts or steps. Here, by using the term "may", it is intended to illustrate that any attribute described that "may" includes is optional. Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "one" used to describe an element, ingredient, part or step is not said to exclude other elements, ingredients, parts or steps.

[0084] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly, and cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An end plate connected I-beam node structure, characterized in that: The end plate connected I-beam node structure comprises: a first I-beam, the first I-beam comprising a first web, a first flange and a second flange located on both sides of the first web; a second I-beam, the second I-beam comprising a second web, a third flange and a fourth flange located on both sides of the second web; a first flange end plate connected to an upper portion of the first flange end and the first web end; a second flange end plate connected to the lower portion of the second flange end and the first web end; a first web end plate connected between an upper portion and a lower portion of an end portion of the first web; A third flange end plate connected to an upper portion of the third flange end and the second web end; a fourth flange end plate connected to the fourth flange end and the lower portion of the second web end; a second web end plate connected to an area between an upper portion and a lower portion of an end portion of the second web; Wherein, the first flange end plate and the third flange end plate are relatively fitted and connected through a fixing assembly; The second flange end plate is relatively fitted with the fourth flange end plate and connected via a fixing assembly; The first web end plate and the second web end plate are relatively fitted and connected via a fixing assembly; The thickness of the first flange end plate is greater than the thickness of the first web end plate, and the thickness of the second flange end plate is greater than the thickness of the first web end plate; and / or the thickness of the third flange end plate is greater than the thickness of the second web end plate, and the thickness of the fourth flange end plate is greater than the thickness of the second web end plate.

2. The end plate connected I-beam node structure according to claim 1 is characterized in that: The fixing assembly includes a bolt and a nut. The bolt passes through two end plates to be connected and locks the two end plates through the nut.

3. The end plate connected I-beam node structure according to claim 1 is characterized in that: The first flange and the first web are perpendicular to the first flange end plate, and the first flange, the first web and the first flange end plate are connected by welding; The second flange and the first web are perpendicular to the second flange end plate, and the second flange, the first web and the second flange end plate are connected by welding; The first web end plate is perpendicular to the first web, and the first web end plate is connected to the first web by welding.

4. The end plate connected I-beam node structure according to claim 3 is characterized in that: The third flange and the second web are perpendicular to the third flange end plate, and the third flange, the second web and the third flange end plate are connected by welding; The fourth flange and the second web are perpendicular to the fourth flange end plate, and the fourth flange, the second web and the fourth flange end plate are connected by welding; The second web end plate is perpendicular to the second web, and the second web end plate is connected to the second web by welding.

5. The end plate connected I-beam node structure according to claim 2, characterized in that: The specification grade of the bolts connecting the first web end plate and the second web end plate is lower than the specification grade of the bolts connecting the first flange end plate and the third flange end plate.

6. The end plate connected I-beam node structure according to claim 2, characterized in that: The specification grade of the bolts connecting the first web end plate and the second web end plate is lower than the specification grade of the bolts connecting the second flange end plate and the fourth flange end plate.

7. The end plate connected I-beam node structure according to claim 1 is characterized in that: A first stiffening rib is connected between a side of the first flange facing away from the first web and a side of the first flange end plate facing the first flange by welding; A second stiffening rib is connected between a side of the second flange facing away from the first web and a side of the second flange end plate facing the first flange by welding; A third stiffening rib is connected between a side of the third flange facing away from the second web plate and a side of the third flange end plate facing the third flange by welding; A fourth stiffening rib is connected between a side of the fourth flange facing away from the second web and a side of the fourth flange end plate facing the fourth flange by welding.

8. The end plate connected I-beam node structure according to claim 1, characterized in that: Fifth stiffening ribs are respectively connected between the two sides of the first web and the side of the first web end plate facing the first web by welding; Sixth stiffening ribs are connected between two sides of the second web and one side of the second web end plate facing the second web by welding.

9. The end plate connected I-beam node structure according to claim 1, characterized in that: A transition gap is provided between a region of an end portion of the first web connected to the first web end plate and a region of an end portion of the first web connected to the first flange end plate; A transition gap is provided between a region of an end portion of the first web connected to the first web end plate and a region of an end portion of the first web connected to the second flange end plate; A transition gap is provided between a region of an end portion of the second web connected to the second web end plate and a region of an end portion of the second web connected to the third flange end plate; A transition gap is provided between a region of an end portion of the second web connected to the second web end plate and a region of an end portion of the second web connected to the fourth flange end plate.

10. The end plate connected I-beam node structure according to claim 9, characterized in that: The transition notch is partially circular.

11. The end plate connected I-beam node structure according to claim 1, characterized in that: There are multiple fixing components; The fixing assembly is disposed on the first flange end plates above and below the first flange; The fixing components are arranged on the first flange end plates on both sides of the first web; The fixing assembly is disposed on the second flange end plates above and below the second flange; The fixing components are arranged on the second flange end plates on both sides of the first web; The fixing components are arranged on the first web end plates on both sides of the first web.

12. The end plate connected I-beam node structure according to claim 2, characterized in that: The bolts are friction type high strength bolts or pressure type high strength bolts.

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