Concrete-filled steel tube beam column component in #-shaped connection form
By using tic-tac connection form and slot matching groove design at the steel pipe concrete beam column nodes, a compact cross-combination beam structure is formed, which solves the problems of complex construction and insufficient mechanical performance under traditional welding methods, and improves construction efficiency and mechanical performance, while reducing labor and time costs.
Patent Information
- Application Number
- CN202421198858.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The beam and column nodes of the existing steel-concrete composite structure adopt traditional welding methods, which have problems such as high welding quality requirements, complex construction, large residual stress around the weld and welds, and great impact on the seismic resistance of the welds. At the same time, the structure of the node core area is complex, the concrete is difficult to compact, and the mechanical properties are difficult to fully exert.
The steel pipe concrete beam and column member adopts the tic-tac connection form, and forms a cross-combination beam structure in the core area of the node through two quadrangular tube beam bodies. The design of the clamp slot and the mating slot are used for vertical insertion and fixation, and docking with the slots of the upper column and the lower column to form a compact and reasonable node structure.
It realizes quick and convenient construction and installation, the concrete in the core area of the node is easy to pour densely, labor costs and time costs are effectively reduced, and the appearance is simpler and more beautiful.
Smart Images
Figure CN222649026U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building structures, and in particular relates to a steel tube concrete beam-column component in a well-shaped connection form. Background Art
[0002] In the current development of the construction industry, the traditional design, production and construction links have gradually changed to standardized design, industrialized production and intelligent construction, which has greatly improved the construction efficiency of various links of existing construction projects; among them, the steel-concrete composite structure is very consistent with the development trend of the current construction industry due to its excellent mechanical properties and high degree of assembly. However, the beam-column nodes of the current steel-concrete composite structure are still mostly connected by welding, and the structure is often seen in existing documents such as "steel-concrete composite structure beam-column node" with the Chinese patent publication number "CN204435562U"; this kind of traditional welding construction method, on the one hand, is limited by the traditional node structure, and often relies solely on the weld to transmit the force between the beam and column, which may have problems such as high welding quality requirements, complex construction, large residual stress in the weld and around the weld, and great influence of the seismic performance on the weld; on the other hand, with the increasing aesthetic requirements of people for buildings, interior modeling has become an important condition for evaluating whether the building meets the aesthetic requirements. At the same time, for the sake of beauty and simplicity, the weld exposure should be as little as possible. The traditional node structure makes it even cover or grind the connecting weld after welding, which is time-consuming and laborious. In particular, this type of traditional node structure still has problems such as complex structure of the node core area, difficulty in compacting the concrete in the later stage, and difficulty in fully exerting the mechanical properties of the combined structure; therefore, these problems need to be solved urgently. Summary of the invention
[0003] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and to provide a steel tube concrete beam-column component in the form of a tic-tac-toe connection, which has the advantages of compact and reasonable structure and convenient and quick construction, good stress in the core area of the node, and effectively reducing labor costs and time costs.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A steel tube concrete beam-column component with a tic-tac-toe connection form is characterized in that it includes two square tubular beam bodies arranged horizontally along the beam length, both beam bodies have a vertical through-type matching middle section, and the bottom edges of the webs on both sides of one group of matching middle sections are recessed with a clamping groove, while the top edges of the webs on both sides of the other group of matching middle sections are recessed with a matching groove, when the clamping groove and the matching groove are engaged with each other, the two beam bodies present a cross composite beam structure in a top view; it also includes an upper column and a lower column coaxially arranged with the vertical axis of the cross composite beam structure, adjacent ends of the upper column and the lower column are both arranged with slots, the two columns can move toward each other and use the slots to insert the top edge and bottom edge of the matching middle section respectively until the adjacent ends are in contact with each other, at which time the clamping groove and the matching groove are both located in the cavity formed by the columns.
[0006] Preferably, the beam body includes webs on both sides and connecting plates bridging the two top edges and two bottom edges of the webs respectively. The four plates are enclosed end to end to form a square tubular beam body, and the connecting plate is left empty in the middle section of the web, thereby forming a vertical through-type matching middle section; the matching middle section on each beam body includes a main through-cavity formed by the card slot and the matching slot, and a secondary through-cavity for matching with the slot, and the main through-cavity and the secondary through-cavity are integrated chambers or designed independently of each other.
[0007] Preferably, the bottoms of the latching groove and the matching groove are both located at 1 / 2 of the height of the corresponding web.
[0008] Preferably, the upper cylinder and the lower cylinder are both in the shape of square tubes, and two slots parallel to each other are provided on each surface of each cylinder, with a total of eight slots on each cylinder, so as to be respectively inserted into the corresponding webs of the matching middle section.
[0009] Preferably, the upper cylinder and the lower cylinder are both in the shape of a circular tube, and eight slots are evenly distributed circumferentially on the circular surfaces of the adjacent ends so as to be respectively inserted into the corresponding webs of the matching middle section.
[0010] Preferably, the beam body is provided with reserved holes communicating with the beam cavity, and the reserved holes are arranged in sequence along the length direction of the beam body.
[0011] The beneficial effects of the utility model are:
[0012] 1) Construction and installation are quick and convenient.
[0013] During the construction of the utility model, the design of the card slot and the matching slot is used to only fix the two beams in the vertical direction, so that the two beams are crossed with each other in the core area of the node by relying on four groups of webs, forming a tic-tac-toe connection, and the two beams are combined as a whole to form a cross composite beam structure; then, the entire node installation operation can be completed by connecting the two columns in the vertical direction. The entire process is operated by mortise and tenon joints, the connection is simple and practical, the structure is compact and reasonable, and it can effectively improve the construction efficiency and save labor costs and time costs. In addition, since the card slot and the matching slot are both located in the cavity formed by the enclosed columns, part of the weld is hidden in the column cavity of the upper column and the lower column, making the appearance more concise and beautiful.
[0014] 2) Concrete in the core area of the node is easy to pour densely.
[0015] When the beams in two directions are connected through the steel pipe at the node to form a cross composite beam structure, there are no upper and lower flanges in the core area of the node, that is, when the matching middle section is arranged, there is only a web but no connecting plate in the matching middle section. This enhances the mechanical properties of the core area of the node, and enables each through cavity in the matching middle section to form a connecting hole structure that connects the column cavity of the upper column and the lower column, thereby facilitating the pouring of concrete and the through connection of each column, and effectively exerting the mechanical properties of the core area of the node. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional diagram of the utility model;
[0017] Figure 2 for Figure 1 A top view of
[0018] Figure 3 for Figure 1 Exploded diagram of the structure;
[0019] Figure 4 Exploded diagram of the structure constructed for a cross composite beam;
[0020] Figure 5 for Figure 3 A partial enlarged view of part I.
[0021] The actual correspondence between the reference numbers and component names of the utility model is as follows:
[0022] 10-beam body; 10a-web plate; 10b-connecting plate; 11-matching middle section; 12-slot; 13-matching slot; 14-reserved hole;
[0023] 21-upper cylinder; 22-lower cylinder; 23-slot. DETAILED DESCRIPTION
[0024] For ease of understanding, here we combine Figure 1 to Figure 5 The specific structure and working mode of the utility model are further described as follows:
[0025] The specific structure of the utility model refers to Figure 1-2 As shown, it includes two beam bodies 10 forming a cross composite beam structure, both of which are square steel tube concrete beams in the embodiment; at the same time, it also includes an upper column 21 and a lower column 22. After the upper column 21 and the lower column 22 are connected to each other, they can be combined to form a whole square steel tube concrete column. At this time, observe Figure 2 to Figure 4 It can be seen that the middle parts of the two beams 10 are both provided with a through-type matching middle section 11. Therefore, when the upper column 21 and the lower column 22 are matched and inserted into the matching middle section 11, the whole can be formed. Figure 1 The structure shown. Figure 1 It can be seen that the cavity of a whole square steel tube concrete column can completely seal the entire node area.
[0026] The beam body 10 is also provided with a reserved hole 14 communicating with the pipe cavity, so as to improve the overall structural strength during the later pouring.
[0027] During actual assembly, the connection between the beams 10 and the columns is welded; however, since the upper column 21 and the lower column 22 completely cover the entire node core area, the plug-in area formed by the slot 12 and the slot 23 is hidden in a whole square steel tube concrete column, and the exposed external parts are only the joints between the upper column 21 and the lower column 22 and the corresponding beam 10, which effectively ensures the beauty of the overall appearance. Figure 4 As shown, the two beam bodies 10 in the two directions are not provided with connecting plates 10b in the core area of the node, or the connecting plates 10b do not cover the area, so that there are only two side webs 10a in the area, that is, the matching middle section 11, and the height of the slots 12 and matching slots 13 arranged on the webs 10a is only 1 / 2 of the height of the webs 10a. In this way, during assembly, the two beam bodies 10 are first connected through the slots 12 and matching slots 13 reserved on the beam side, so that the two beam bodies 10 are crossed with each other in the core area of the node by four groups of webs, forming a tic-tac-toe connection form, and the two beam bodies 10 are combined as a whole to form a cross composite beam structure. The upper column 21 and the lower column 22 are then connected with the webs 10a at the matching middle section 11 by the slots 23, and finally a complete steel tube concrete composite node is formed.
[0028] After the welding work of the steel tube concrete composite node is completed, the overall construction can be completed by pouring concrete. Due to the existence of the matching middle section 11, the concrete can easily fill the entire cavity of the utility model. In addition, during the design, the insertion area where the card slot 12 and the matching slot 13 are located and the insertion area where the slot 23 is located can be connected to each other to form Figure 4The structure shown in the figure; at this time, the main through cavity and the auxiliary through cavity are integrated to form a matching middle section 11. The two plug-in areas can also be arranged independently without interfering with each other, forming a main through cavity and an auxiliary through cavity separated by a small connecting plate 10b. The actual design can be made according to the site conditions, and will not be repeated here.
[0029] Of course, for those skilled in the art, the present invention is not limited to the details of the above exemplary embodiments, but also includes the same or similar methods that can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is limited by the attached claims rather than the above description.
[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
[0031] The technical parts not described in detail in the present invention are all known technologies.
Claims
1. A steel tube concrete beam-column component with a tic-tac-toe connection, characterized in that: The invention comprises two square tube-shaped beam bodies (10) arranged horizontally along the beam length, and the two beam bodies (10) are both provided with a vertical through-type matching middle section (11), and the bottom edges of the web plates (10a) on both sides of one set of the matching middle sections (11) are concavely provided with a clamping groove (12), and the top edges of the web plates (10a) on both sides of the other set of the matching middle sections (11) are concavely provided with a matching groove (13), and when the clamping groove (12) and the matching groove (13) are clamped with each other, the two beam bodies (10) are in a top view. The invention discloses a cross composite beam structure; it also comprises an upper column (21) and a lower column (22) which are coaxially arranged with the vertical axis of the cross composite beam structure; adjacent ends of the upper column (21) and the lower column (22) are both arranged with slots (23); the two columns can move toward each other and respectively insert the top edge and the bottom edge of the matching middle section (11) by using the slots (23) until the adjacent ends are in contact with each other, at which time the clamping slot (12) and the matching slot (13) are both located in the cavity enclosed by each column.
2. The steel tube concrete beam-column component with a tic-tac-toe connection according to claim 1, characterized in that: The beam body (10) comprises webs (10a) at two sides and connecting plates (10b) respectively bridging two top edges and two bottom edges of the webs (10a); the four plates are enclosed end to end to form a square tubular beam body (10), and the connecting plate (10b) is left empty at the middle section of the webs (10a), thereby forming a vertical through-type matching middle section (11); the matching middle section (11) on each beam body (10) comprises a main through cavity formed by the engagement of a clamping groove (12) and a matching groove (13), and a secondary through cavity for matching with a slot (23); the main through cavity and the secondary through cavity are integrated chambers or are designed independently of each other.
3. The steel tube concrete beam-column component with a tic-tac-toe connection according to claim 2, characterized in that: The bottoms of the clamping groove (12) and the matching groove (13) are both located at 1 / 2 of the height of the corresponding web (10a).
4. A steel tube concrete beam-column component with a tic-tac-toe connection according to claim 1, 2 or 3, characterized in that: The upper column (21) and the lower column (22) are both in the shape of square tubes. Two parallel slots (23) are provided on each surface of each column. There are eight slots (23) on each column, so that they can be respectively inserted into the corresponding webs (10a) of the matching middle section (11).
5. A steel tube concrete beam-column component with a tic-tac-toe connection according to claim 1, 2 or 3, characterized in that: The upper cylinder (21) and the lower cylinder (22) are both in the shape of a circular tube, and eight slots (23) are evenly distributed circumferentially on the circular surfaces of the adjacent ends so as to be respectively inserted into the corresponding webs (10a) of the matching middle section (11).
6. A steel tube concrete beam-column component with a tic-tac-toe connection according to claim 1, 2 or 3, characterized in that: The beam body (10) is provided with reserved holes (14) communicating with the beam cavity, and the reserved holes (14) are arranged in sequence along the length direction of the beam body (10).