Joint structure of a steel column-beam concrete structure building

Abstract

The utility model provides a kind of steel column beam concrete structure building's node structure, belong to steel column beam concrete structure building technical field.It has solved the general problem of the seismic capacity of existing steel column beam concrete structure building.The main beam and vice beam of the node structure of the steel column beam concrete structure building are C-shaped steel beam or rectangular steel pipe beam, the upper along of the two sides wall of main beam end portion is all set with the main slit that is slender and extends downward, the lower along of the two sides wall of vice beam end portion is all set with the vice slit that is slender and extends upward, four downward extending grooves are set in the side wall of column top, the inner end of two main beams and the inner end of two vice beams are respectively embedded in four grooves, two main slits on each main beam are respectively inserted with the vice slit on two vice beams, so that the inner end of two main beams and the inner end of two vice beams are mutually inserted and positioned.The node structure of the steel column beam concrete structure building has the advantages of improving seismic capacity and convenient construction.

Description

Technical Field

[0001] This utility model belongs to the technical field of steel column-beam concrete structure building, and relates to a node structure of steel column-beam concrete structure building. Background Technology

[0002] Steel column-beam concrete structure is a building system that uses steel as the main load-bearing component. It integrates the advantages of industrialized manufacturing and modular installation and is widely used in high-rise buildings, large-span stadiums, industrial plants and residences.

[0003] Existing steel column-beam concrete structure buildings, such as the frame structure building disclosed in Chinese patent literature [Patent No.: 202010759218.0; Application Publication No.: CN112064779B], include columns, floor slabs for realizing floor layering, and main beams connected to the columns and supporting the floor slabs. The main beams have casting cavities inside, and the top of the main beams has casting ports for casting the casting cavities. Filler material is poured into the casting cavities of the main beams and the interiors of the columns. The filler material inside the casting cavities, the filler material inside the columns, and the floor slabs form an integrated structure.

[0004] In this type of frame structure, the columns have side openings on their side walls. The end of the main beam is inserted into these side openings and welded to the wall of the opening, thus connecting and fixing the main beam to the column. The side openings allow the pouring cavity of the main beam to communicate with the inner cavity of the column. During the pouring of concrete into both the column and the main beam's pouring cavity, the concrete inside the column and the pouring cavity can flow between them, ensuring a good bond between the concrete inside both and increasing the stability of the connection joint between the main beam and the column. However, in this type of frame structure, the end of the main beam extends very shortly into the column, meaning the main beam is only fixedly connected to the column. When the frame structure shakes due to earthquakes or other events, the weld between the main beam and the column may crack, causing the main beam to detach from the column. This damages the connection between the main beam and the column, further leading to damage to the frame structure and resulting in generally poor earthquake resistance. Summary of the Invention

[0005] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a joint structure for steel column-beam concrete structures, which solves the technical problem of how to improve seismic resistance and facilitate construction.

[0006] The purpose of this utility model can be achieved through the following technical solution: A node structure for a steel column-beam concrete structure building, comprising two main beams arranged in a straight line, two secondary beams arranged in a straight line, and a rectangular tubular column, characterized in that both the main beams and the secondary beams are C-shaped steel beams or rectangular steel tube beams, the upper edges of the two side walls at the end of each main beam are respectively provided with elongated main slits extending downward, the lower edges of the two side walls at the end of each secondary beam are respectively provided with elongated secondary slits extending upward, the side wall at the top of the column is provided with four downwardly extending grooves, the inner ends of the two main beams and the inner ends of the two secondary beams are respectively embedded in the four grooves, and the two main slits on each main beam are respectively inserted into the secondary slits on the two secondary beams, so that the inner ends of the two main beams and the inner ends of the two secondary beams are inserted and positioned with each other.

[0007] During assembly, first embed the inner ends of the two main beams into the corresponding grooves respectively to arrange the two main beams in a straight line, then embed one of the secondary beams into the corresponding groove, so that the two secondary slits on this secondary beam are respectively inserted into the main slits on the two main beams, then embed the other secondary beam into the corresponding groove, so that the two secondary slits on this secondary beam are respectively inserted into the main slits on the two main beams. This insertion manner simultaneously enables the two main slits on each main beam to be respectively inserted into the secondary slits on the two secondary beams, so that the inner ends of the two main beams and the inner ends of the two secondary beams are inserted and positioned with each other, thereby integrating the two main beams and the two secondary beams as a whole and improving the stability of the node structure. When shaking caused by earthquakes or other conditions leads to settlement of the column, the main beams and the secondary beams are linked to resist earthquakes after being inserted and positioned with each other, which reduces the dislocation between the main beams and the secondary beams, thus improving the seismic capacity of the steel column-beam concrete structure building. Moreover, the main slits face upward and the secondary slits face downward. During installation, the main beams and the secondary beams can be lifted by hoisting, and then inserted and installed from top to bottom, which is convenient for construction. Both the main beams and the secondary beams are C-shaped steel beams. The main part of a C-shaped steel beam is in a shape, and both side walls at the opening of the main part are bent inward. The cross section of a rectangular steel tube beam is in a square shape.

[0008] In the node structure for the steel column-beam concrete structure building described above, the width of the main slit is greater than the width of the secondary slit. This structure adapts to the structures of the main beams and the secondary beams, so that the top wall of the secondary beam can be embedded into the main slit, and the main beams and the secondary beams can be connected more closely through the secondary slits.

[0009] In the node structure for the steel column-beam concrete structure building described above, the depth of the main slit is 1 / 3-1 / 2 of the height of the side wall at the end of the main beam, and the depth of the secondary slit is 1 / 3-1 / 2 of the height of the side wall at the end of the secondary beam. This structure enables the ends of the main beam and the secondary beam to be connected while having sufficient strength and being less prone to fracture, which improves the stability of the node structure, thus enhancing the seismic capacity of the steel column-beam concrete structure building.

[0010] In the aforementioned joint structure of a steel column-beam concrete structure, there is a gap between the inner ends of the two main beams and a gap between the inner ends of the two secondary beams. This gap is relatively small, typically 5-10 mm, which allows for the absorption of deformation due to thermal expansion and contraction, and also prevents the main and secondary beams from directly contacting and jamming due to relative movement caused by vibration.

[0011] In the aforementioned joint structure of a steel column-beam concrete structure, two of the four grooves, arranged opposite each other, have upwardly protruding positioning blocks on their bottoms. The bottom walls of the inner ends of the two main beams each have through positioning holes. The positioning blocks are embedded in the corresponding positioning holes to position the main beams and columns. This structure allows for the positioning of the main beams during installation, preventing them from moving and facilitating the installation of both the main beams and secondary beams, thus simplifying the construction of the joint structure.

[0012] In the aforementioned joint structure of a steel-column-beam concrete structure, each of the two main beams has a through-hole in its bottom wall at both ends. The cavity inside the main beam communicates with the cavity inside the column through the through-hole. Similarly, each of the two secondary beams has a through-hole in its bottom wall at both ends. The cavity inside the secondary beam communicates with the cavity inside the column through the through-hole. Concrete needs to be poured into the main beams, secondary beams, and columns. The presence of the through-holes and secondary through-holes allows the concrete to flow freely and enables the cured concrete to form a unified structure, increasing the strength of the joint structure and thus improving the seismic resistance of the steel-column-beam concrete structure.

[0013] In the aforementioned joint structure of a steel column-beam concrete structure, both ends of the secondary beams have recessed through-grooves. These through-grooves on the two secondary beams are arranged one-to-one, and the cavities inside the main beam communicate with the cavities inside the secondary beams through these through-grooves. The through-grooves allow the concrete to flow freely and enable the cured concrete to form a unified structure, increasing the strength of the joint structure and thus improving the seismic resistance of the steel column-beam concrete structure.

[0014] In the aforementioned joint structure of a steel column-beam concrete structure, the outer wall of the end of the main beam is fitted with the groove wall of the corresponding groove, and the fitting point is welded and fixed. Similarly, the outer wall of the end of the secondary beam is fitted with the groove wall of the corresponding groove, and the fitting point is welded and fixed. The connections and gaps between the main beam, secondary beam, and column are all welded and fixed to improve the strength of the joint structure, thereby enhancing the seismic resistance of the steel column-beam concrete structure.

[0015] Compared with the prior art, the joint structure of the steel column-beam concrete structure provided by this utility model has the following advantages:

[0016] 1. This node structure interlocks and positions the inner ends of the two main beams and the two secondary beams, thereby forming a whole and increasing the stability of the node structure. When the columns settle due to shaking caused by earthquakes or other events, the interlocking and positioning of the main beams and secondary beams will provide coordinated earthquake resistance, reduce the misalignment of the main beams and secondary beams, and thus improve the earthquake resistance of the steel column beam concrete structure.

[0017] 2. The main through holes, secondary through holes, and through slots in this node structure make the concrete in the main beam, secondary beam, and column form a whole, improving the strength of the node structure and thus improving the seismic resistance of the steel column beam concrete structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the joint structure of this steel column-beam concrete structure building.

[0019] Figure 2 This is a diagram showing the overall structural state of the main beam and secondary beam of this node structure, including their insertion and positioning.

[0020] Figure 3 This is an exploded view of the main beams, secondary beams, and columns of this node structure.

[0021] Figure 4 This is a schematic diagram of the positioning block and positioning hole of this node structure.

[0022] In the diagram, 1 is the main beam; 11 is the main cut; 12 is the positioning hole; 13 is the main through hole; 2 is the secondary beam; 21 is the secondary cut; 22 is the secondary through hole; 23 is the through groove; 3 is the column; 31 is the groove; and 32 is the positioning block. Detailed Implementation

[0023] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0024] like Figure 1 As shown, the joint structure of this steel column-beam concrete structure includes a main beam 1, a secondary beam 2, and a column 3. There are two main beams 1 arranged in a straight line, and there are two secondary beams 2 arranged in a straight line. In this embodiment, both the main beams 1 and the secondary beams 2 are C-shaped steel beams, and the column 3 is a rectangular tube. In actual production, both the main beams 1 and the secondary beams 2 can be rectangular steel tube beams.

[0025] like Figure 2 , Figure 3As shown, the upper edges of both side walls at the ends of the main beam 1 are provided with elongated, downward-extending main slits 11, and the lower edges of both side walls at the ends of the secondary beam 2 are provided with elongated, upward-extending secondary slits 21. The width of the main slits 11 is greater than the width of the secondary slits 21. In this embodiment, the depth of the main slits 11 is 2 / 5 of the height of the side wall at the end of the main beam 1, and the depth of the secondary slits 21 is 2 / 5 of the height of the side wall at the end of the secondary beam 2. In actual production, the depth of the main slits 11 can be 1 / 3 or 1 / 2 of the height of the side wall at the end of the main beam 1, and the depth of the secondary slits 21 can be 1 / 3 or 1 / 2 of the height of the side wall at the end of the secondary beam 2. The two main cuts 11 on each main beam 1 are respectively connected to the secondary cuts 21 on the two secondary beams 2, and the two secondary cuts 21 on each secondary beam 2 are respectively connected to the main cuts 11 on the two main beams 1, so that the inner ends of the two main beams 1 and the inner ends of the two secondary beams 2 are connected and positioned.

[0026] Four downward-extending grooves 31 are formed in the side wall at the top of the column 3. The inner ends of the two main beams 1 and the two secondary beams 2 are respectively embedded in the four grooves 31. The outer wall of the end of the main beam 1 is fitted with the groove wall of the corresponding groove 31 and the fitting point is welded and fixed. The outer wall of the end of the secondary beam 2 is fitted with the groove wall of the corresponding groove 31 and the fitting point is welded and fixed. There is a gap between the inner ends of the two main beams 1 and between the inner ends of the two secondary beams 2.

[0027] Both main beams 1 have through-holes 13 in the bottom walls at their ends, through which the cavities inside the main beams 1 and the columns 3 are connected. Similarly, both secondary beams 2 have through-holes 22 in the bottom walls at their ends, through which the cavities inside the secondary beams 2 and the columns 3 are connected. Both secondary beams 2 have recessed grooves 23 on their end faces, with each groove corresponding to the one inside the main beam 1.

[0028] like Figure 4 As shown, two of the four grooves 31 that are arranged opposite each other have a positioning block 32 that protrudes upward on the bottom of the groove, and the bottom wall of the inner end of the two main beams 1 has a through positioning hole 12. The positioning block 32 is embedded in the corresponding positioning hole 12 to position the main beam 1 and the column 3.

[0029] During assembly, first, the inner ends of the two main beams 1 are respectively embedded into the corresponding grooves 31, and the positioning blocks 32 are embedded in the corresponding positioning holes 12 to position the main beams 1 and the columns 3, so that the two main beams 1 are arranged in a straight line. Then, one of the secondary beams 2 is embedded into the corresponding groove 31, and the two secondary cuts 21 on the secondary beam 2 are respectively inserted into the main cuts 11 on the two main beams 1. Then, the other secondary beam 2 is embedded into the corresponding groove 31, and the two secondary cuts 21 on the secondary beam 2 are respectively inserted into the main cuts 11 on the two main beams 1. Then, the gaps are welded, and finally, concrete is poured.

[0030] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0031] Although this document frequently uses terms such as main beam 1, main slit 11, positioning hole 12, main through hole 13, secondary beam 2, secondary slit 21, secondary through hole 22, through groove 23, column 3, groove 31, and positioning block 32, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A joint structure for a steel column-beam concrete structure, comprising two main beams (1) arranged in a straight line, two secondary beams (2) arranged in a straight line, and a rectangular tubular column (3), characterized in that, Both the main beam (1) and the secondary beam (2) are C-shaped steel beams or rectangular steel pipe beams. The upper edge of the two side walls at the end of the main beam (1) is provided with a long and narrow main slit (11) extending downward. The lower edge of the two side walls at the end of the secondary beam (2) is provided with a long and narrow secondary slit (21) extending upward. The side wall at the top of the column (3) is provided with four downward-extending grooves (31). The inner ends of the two main beams (1) and the two secondary beams (2) are respectively embedded in the four grooves (31). The two main slits (11) on each main beam (1) are respectively connected to the secondary slits (21) on the two secondary beams (2), so that the inner ends of the two main beams (1) and the inner ends of the two secondary beams (2) are connected and positioned.

2. The joint structure of a steel column-beam concrete structure according to claim 1, characterized in that, The width of the main slit (11) is greater than the width of the secondary slit (21).

3. The joint structure of a steel column-beam concrete structure according to claim 1, characterized in that, The depth of the main slit (11) is 1 / 3 to 1 / 2 of the height of the end side wall of the main beam (1), and the depth of the secondary slit (21) is 1 / 3 to 1 / 2 of the height of the end side wall of the secondary beam (2).

4. The joint structure of a steel column-beam concrete structure according to claim 1, 2, or 3, characterized in that, There is a gap between the inner ends of the two main beams (1) and between the inner ends of the two secondary beams (2).

5. A joint structure for a steel column-beam concrete structure according to claim 1, 2, or 3, characterized in that, Two of the four grooves (31) are arranged opposite each other and each has a positioning block (32) that protrudes upward on the bottom of the groove. The bottom wall of the inner end of each of the two main beams (1) has a through positioning hole (12). The positioning block (32) is embedded in the corresponding positioning hole (12) to position the main beam (1) and the column (3).

6. A joint structure for a steel column-beam concrete structure according to claim 1, 2, or 3, characterized in that, Both main beams (1) have through main through holes (13) in the bottom wall at their ends. The cavity inside the main beam (1) is connected to the cavity inside the column (3) through the main through holes (13). Both secondary beams (2) have through secondary through holes (22) in the bottom wall at their ends. The cavity inside the secondary beam (2) is connected to the cavity inside the column (3) through the secondary through holes (22).

7. A joint structure for a steel column-beam concrete structure according to claim 1, 2, or 3, characterized in that, Both of the sub-beams (2) have recessed through grooves (23) on their end faces. The through grooves (23) on the two sub-beams (2) are arranged one-to-one. The cavity inside the main beam (1) is connected to the cavity inside the sub-beam (2) through the through grooves (23).

8. The joint structure of a steel column-beam concrete structure according to claim 1, 2, or 3, characterized in that, The outer side wall of the end of the main beam (1) is fitted with the groove wall of the corresponding groove (31) and the fitting point is welded and fixed. The outer side wall of the end of the secondary beam (2) is fitted with the groove wall of the corresponding groove (31) and the fitting point is welded and fixed.

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