Inverted Y-shaped steel column connecting joint
By connecting the nodes of the inverted Y-shaped steel columns, the slots are inserted on the original roof beam and the lower steel columns. As the load-bearing structure of the newly built upper steel columns, the problems of unstable steel column connections and high construction risks in the building structure are solved, and the effect of saving costs and reducing risks is achieved.
Patent Information
- Application Number
- CN202421359153.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-06-14
AI Technical Summary
During the construction of building structures, the original factory building cannot meet the current space usage function, resulting in the need to partially increase the steel structure and increase the height of the use space. In the prior art, the steel column connection method has problems such as unstable force on the column foot, limited cross-sectional specifications and high construction risks.
The inverted Y-shaped steel columns are used to connect the nodes, and are inserted downwards on the original roof beam and the lower steel column through slots opened on the second flange plates, and are connected to the lower steel columns, as the bearing structure of the newly built upper steel columns.
The problem of rooting the foot of the additional structural column column is solved, avoiding the construction risks that may be brought about by the removal of steel columns in the original factory, and saving labor costs and material costs.
Smart Images
Figure CN222835422U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, and more specifically, to an inverted Y-shaped steel column connection node. Background Art
[0002] During the construction of the building structure, due to changes in equipment and process requirements, the original factory building cannot meet the current space usage functions, and it is necessary to add steel structures locally to increase the height of the usable space. However, the connection between the column and the beam in the portal frame factory building is often a top connection structure, and the steel column does not pass through the roof beam. To add a new steel column, you can only set up a beam column. The column foot of the beam column is unstable and the cross-sectional specifications are subject to the cross-sectional area of the steel beam flange plate. At the same time, there are many adverse stress effects on the steel beam during construction, and it is difficult to reinforce the node; another way to deal with it is to dismantle the original steel column and replace it with a longer steel column so that the steel column passes through the roof beam. This method solves the rooting problem of the upper steel column, but the previous dismantling will affect the overall structural stress of the original structure factory building, and the risk of dismantling is relatively high. Utility Model Content
[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described below.
[0004] In order to achieve these purposes and other advantages according to the utility model, an inverted Y-shaped steel column connection node is provided to connect the original roof beam and the newly built upper steel column, wherein a lower steel column is arranged at the bottom of the original roof beam, and the lower steel column comprises two first flange plates arranged in parallel and a first web plate arranged between the two first flange plates, and the inverted Y-shaped steel column connection node comprises:
[0005] Two second flange plates are arranged in parallel, and two second web plates are arranged between the two second flange plates; a slot is opened upward on the bottom surface of the second flange plate, and the slots on the two second flange plates are symmetrically arranged; the width of the slot and the spacing between the two second web plates are both greater than the width of the first flange plate and the width of the original roof beam, and the two side walls of the slot are fixedly connected to the lower steel column respectively, and a gap is left between the top surface of the original roof beam and the inner top surface of the slot; a bottom plate is fixedly arranged on the top surface of the two second flange plates, and the newly built upper steel column is fixedly arranged on the bottom plate.
[0006] Preferably, the distance between the two second flange plates is the same as the distance between the two first flange plates, and the two sides of the slot are respectively welded and fixed to the two sides of the corresponding first flange plates.
[0007] Preferably, the difference between the height of the slot and the height of the original roof beam is not less than 600 mm.
[0008] Preferably, a plurality of stiffening plates are arranged at intervals along the vertical direction on both sides of the first web and the second web, and the thickness of the stiffening plates is not less than the thickness of the first web.
[0009] Preferably, the thickness of the bottom plate is not less than 20 mm.
[0010] Preferably, a third web is provided between the two second webs, and the two sides of the third web are respectively fixedly connected to the two second flange plates, the top surface of the third web is flush with the top surface of the second web, and the bottom surface thereof does not exceed the inner top surface of the slot.
[0011] Preferably, the thickness of the second web and the third web is not less than the thickness of the first web.
[0012] The utility model at least has the following beneficial effects:
[0013] The utility model provides an inverted Y-shaped steel column connection node for connecting the original roof beam and the newly built upper steel column; it is inserted downward on the original roof beam and the lower steel column through the slots provided on the two second flange plates, and is connected to the lower steel column to serve as the load-bearing structure of the newly built upper steel column, thereby solving the rooting problem of the column foot of the additional structural column and avoiding the construction risk that may be caused by the removal of the steel column of the original factory building; compared with the partial removal construction of the steel column of the original main structure, it effectively saves labor cost and material cost.
[0014] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the installation position of the inverted Y-shaped steel column connection node of the utility model;
[0016] Figure 2 This is a structural schematic diagram of the inverted Y-shaped steel column connection node of the utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the lower steel column of the utility model; DETAILED DESCRIPTION
[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.
[0019] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0020] like Figures 1 to 3 As shown, the utility model provides an inverted Y-shaped steel column connection node 300, which is used to connect the original roof beam 200 and the newly built upper steel column 400. The bottom of the original roof beam 200 is provided with a lower steel column 100, and the lower steel column 100 includes two first flange plates 110 arranged in parallel and a first web plate 120 arranged between the two first flange plates 110. The inverted Y-shaped steel column connection node 300 includes:
[0021] Two second flange plates 310 are arranged in parallel, and two second web plates 320 are arranged between the two second flange plates 310; a slot is opened upward on the bottom surface of the second flange plate 310, and the slots on the two second flange plates 310 are symmetrically arranged; the width of the slot and the spacing between the two second web plates 320 are both greater than the width of the first flange plate 110 and the width of the original roof beam 200, and the two side walls of the slot are fixedly connected to the lower steel column 100 respectively, and a gap is left between the top surface of the original roof beam 200 and the inner top surface of the slot; a bottom plate 340 is fixedly arranged on the top surface of the two second flange plates 310, and the newly built upper steel column 400 is fixedly arranged on the bottom plate 340.
[0022] In this technical solution, the original roof beam 200 and the newly built upper steel column 400 are connected through the inverted Y-shaped steel column connection node 300, which solves the rooting problem of the additional structural column foot and avoids the construction risk that may be caused by the removal of the steel column of the original factory building. The inverted Y-shaped steel column connection node 300 is formed by opening the slot at the bottom of the second flange plate 310 to form an inverted Y-shaped steel column structure, and is inserted downwardly on the original roof beam 200 and the lower steel column 100 through the slot, and then the inverted Y-shaped steel column connection node 300 is connected to the lower steel column 100, which can ensure the bending strength of the connection node, and then can serve as the load-bearing structure of the newly built upper steel column 400. At the same time, compared with the partial steel column removal construction of the original main structure, it saves labor costs and material costs, and has low construction risks. The second web 320 is arranged throughout the length of the second flange plate 31 to ensure the overall strength of the inverted Y-shaped steel column connection node 300. At the same time, the spacing between the two second webs 320 needs to meet the insertion requirement, that is, the two second webs 320 are located on both sides of the original roof beam 200 and the lower steel column 100. The newly built upper steel column 100 is arranged at the inverted Y-shaped steel column connection node 300. Compared with directly setting the column on the beam, it has higher stability, and the cross-sectional specifications of the newly built upper steel column 100 do not need to be restricted by the lateral dimensions of the original roof beam 200. There is a gap between the top surface of the original roof beam 200 and the inner top surface of the slot, and the force of the inverted Y-shaped steel column connection node 300 is not transmitted to the original roof beam 200, so that the safety of the original structural body is effectively guaranteed.
[0023] In another technical solution, the spacing between the two second flange plates 310 is the same as the spacing between the two first flange plates 110, and the two sides of the slot are respectively welded and fixed to the two sides of the corresponding first flange plates 110. When the inverted Y-shaped steel column connection node 300 is inserted on the original roof beam 200 and the lower steel column 100, the two sides of the slot on one second flange plate 310 just correspond to the two sides of one first flange plate 110, and the two second flange plates 310 and the two first flange plates are respectively welded to ensure the bending strength of the connection node and reliable force.
[0024] In another technical solution, the difference between the height of the slot and the height of the original roof beam 200 is not less than 600 mm. The height of the slot is the opening depth of the slot. Sufficient opening depth can ensure the welding length between the two side walls of the slot and the corresponding two sides of the first flange plate 110, thereby making the inverted Y-shaped steel column connection node 300 and the lower steel column 100 reliably connected.
[0025] In another technical solution, a plurality of stiffening plates 330 are arranged at intervals along the vertical direction on both sides of the first web 120 and the second web 320, and the thickness of the stiffening plates 330 is not less than the thickness of the first web 120. The stiffening plates 330 are used to further increase the overall strength of the inverted Y-shaped steel column connection node 300 and the overall strength of the lower steel column 100, ensuring that both are reliably stressed.
[0026] In another technical solution, the thickness of the bottom plate 340 is not less than 20 mm. The bottom plate 340 of sufficient thickness can meet the force requirements of the newly built upper steel column.
[0027] In another technical solution, a third web 350 is further provided between the two second webs 320, and the two sides of the third web 350 are respectively fixedly connected to the two second flange plates 310, and the top surface of the third web 350 is flush with the top surface of the second web 320, and the bottom surface thereof does not exceed the inner top surface of the slot. The third web 350 does not extend into the slot to contact the original roof beam 200, thereby affecting the force of the original roof beam 200.
[0028] Furthermore, the thickness of the second web 320 and the third web 350 is not less than the thickness of the first web 110. Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and the embodiments, and can be fully applied to various fields suitable for the present invention. For those familiar with the art, other modifications can be easily realized. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrations shown and described herein.
Claims
1. An inverted Y-shaped steel column connection node, used to connect an existing roof beam and a newly built upper steel column, wherein a lower steel column is arranged at the bottom of the existing roof beam, and the lower steel column comprises two first flange plates arranged in parallel and a first web plate arranged between the two first flange plates, characterized in that: The inverted Y-shaped steel column connection node includes: Two second flange plates are arranged in parallel, and two second web plates are arranged between the two second flange plates; a slot is opened upward on the bottom surface of the second flange plate, and the slots on the two second flange plates are symmetrically arranged; the width of the slot and the spacing between the two second web plates are both greater than the width of the first flange plate and the width of the original roof beam, and the two side walls of the slot are fixedly connected to the lower steel column respectively, and a gap is left between the top surface of the original roof beam and the inner top surface of the slot; a bottom plate is fixedly arranged on the top surface of the two second flange plates, and the newly built upper steel column is fixedly arranged on the bottom plate.
2. The inverted Y-shaped steel column connection node according to claim 1, characterized in that: The distance between the two second flange plates is the same as the distance between the two first flange plates, and the two sides of the slot are respectively welded and fixed to the two sides of the corresponding first flange plates.
3. The inverted Y-shaped steel column connection node according to claim 1, characterized in that: The difference between the height of the slot and the height of the original roof beam is not less than 600 mm.
4. The inverted Y-shaped steel column connection node according to claim 1, characterized in that: A plurality of stiffening plates are arranged at intervals on both sides of the first web and the second web in the vertical direction, and the thickness of the stiffening plates is not less than the thickness of the first web.
5. The inverted Y-shaped steel column connection node according to claim 1, characterized in that: The thickness of the bottom plate is not less than 20 mm.
6. The inverted Y-shaped steel column connection node according to claim 1, characterized in that: A third web is also provided between the two second webs, and the two sides of the third web are respectively fixedly connected to the two second flange plates, the top surface of the third web is flush with the top surface of the second web, and the bottom surface thereof does not exceed the inner top surface of the slot.
7. The inverted Y-shaped steel column connection node according to claim 6, characterized in that: The thickness of the second web and the third web is not less than the thickness of the first web.