Tubular column and precast beam joint structure

Abstract

The utility model discloses a tubular column and precast beam joint structure in the field of building structures, which comprises a tubular column and a plurality of precast beams, an upper ring plate and a supporting plate are arranged on the tubular column and are arranged at intervals, and the precast beams are arranged between the upper ring plate and the supporting plate in a surrounding manner; a plurality of reserved hole grooves are formed in the supporting plate, an embedded steel plate is arranged on the precast beam, clamping protrusions are arranged on the embedded steel plate, and the clamping protrusions are welded to the side walls of the reserved hole grooves. The utility model solves the problems that an additional measuring tool is needed to connect the existing steel structure column and the precast concrete beam, an operator needs to spend time on measurement and checking, the whole construction period is prolonged, and the construction progress is influenced. The preformed hole grooves formed in the supporting plate are matched with the clamping protrusions of the pre-embedded steel plate on the precast beam, accurate positioning of the precast beam on the tubular column is achieved, extra measuring tools are not needed in the construction process, the installation efficiency is improved, and the construction progress can be accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, and specifically, to a node structure between a circular pipe column and a precast beam. Background Art

[0002] In building structures, the core area of the node, the column ends and the beam ends are the weakest parts of the frame. The stress is complex, and they bear the bending moment and shear force transmitted from the beam and the column, etc., playing the role of transmitting and distributing internal forces and maintaining the integrity of the frame structure.

[0003] During the construction process of prefabricated buildings, how to effectively combine two components of different materials, namely steel structure columns and precast concrete beams, is a key and difficult point in the design and construction process. When the existing circular pipe columns are connected to precast concrete beams, additional measuring tools are required during the construction process to ensure the installation accuracy of the steel structure columns and precast concrete beams. To ensure the measurement accuracy, the operators need to spend more time on measurement and calibration, which will prolong the entire construction period and affect the construction progress.

[0004] The above defects need to be solved urgently. Summary of the Utility Model

[0005] In order to solve the problem that when connecting the existing circular pipe columns to precast concrete beams, additional measuring tools are required, the operators need to spend more time on measurement and calibration, which will prolong the entire construction period and affect the construction progress, the utility model provides a node structure between a circular pipe column and a precast beam.

[0006] The technical solution of the utility model is as follows:

[0007] A node structure between a circular pipe column and a precast beam, comprising a circular pipe column and a plurality of precast beams. An upper ring plate and a supporting plate are arranged on the circular pipe column, the upper ring plate and the supporting plate are arranged at intervals, and the plurality of precast beams are arranged around between the upper ring plate and the supporting plate;

[0008] A plurality of reserved hole grooves are arranged on the supporting plate, embedded steel plates are arranged on the precast beams, clamping protrusions are arranged on the embedded steel plates, and the clamping protrusions are welded to the side walls of the reserved hole grooves.

[0009] In the utility model according to the above scheme, a plurality of steel bars are arranged on the top of the precast beam, a plurality of partition plates distributed up and down are arranged around the upper ring plate, and a plurality of installation positions are formed by enclosing the left and right adjacent two partition plates and the upper ring plate. A plurality of connecting holes corresponding to the installation positions one by one are arranged on the circular pipe column, and one ends of the plurality of steel bars pass through the corresponding connecting holes.

[0010] For the present utility model according to the above solution, the connecting holes are divided into upper through holes and lower through holes located below the upper through holes, and the plurality of steel bars are divided into an upper steel bar group and a lower steel bar group located below the upper steel bar group;

[0011] A casting groove is provided at the top of the precast beam, the upper steel bar group is located above the casting groove, one end of the upper steel bar group passes through the corresponding upper through hole, the lower steel bar group is arranged in the casting groove, and one end of the lower steel bar group passes through the corresponding lower through hole.

[0012] For the present utility model according to the above solution, the installation positions are divided into upper separation positions and lower separation positions located below the upper separation positions, the upper through holes are arranged on the corresponding upper separation positions, and the lower through holes are arranged on the corresponding lower separation positions.

[0013] For the present utility model according to the above solution, there is a gap between the end of the precast beam and the circular pipe column.

[0014] For the present utility model according to the above solution, stud bolts are further arranged between the upper ring plate and the supporting plate, and one end of the stud bolt is connected to the circular pipe column.

[0015] For the present utility model according to the above solution, a plurality of corbel structures corresponding to the reserved hole grooves one by one are arranged around the bottom of the supporting plate. The corbel structure includes two corbel components, and the two corbel components are symmetrically arranged on both sides below the reserved hole groove. The corbel component includes a first side surface and a second side surface, the first side surface is perpendicular to the second side surface, the first side surface is connected to the supporting plate, and the second side surface is connected to the circular pipe column.

[0016] For the present utility model according to the above solution, the width of the reserved hole groove is 55 mm to 65 mm.

[0017] For the present utility model according to the above solution, the length of the reserved hole groove is 95 mm to 105 mm.

[0018] For the present utility model according to the above solution, the length of the embedded steel plate is 145 mm to 155 mm.

[0019] For the present utility model according to the above solution, its beneficial effects are as follows:

[0020] In the above-mentioned joint structure of the circular tubular column and the precast beam, the reserved hole grooves provided on the supporting plate match the clamping protrusions of the embedded steel plate on the precast beam, achieving the precise positioning of the precast beam on the circular tubular column. During installation, only need to align the clamping protrusions with the reserved hole grooves and insert them, and then carry out welding fixation to ensure the connection accuracy and stability between the precast beam and the circular tubular column. There is no need to rely on additional measuring tools during the construction process, reducing the cumbersome measuring and checking steps in the traditional connection method, improving the installation efficiency, and helping to speed up the project progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the top view of the present utility model;

[0022] Figure 2 is the bottom view of the present utility model;

[0023] Figure 3 is one of the partial structural schematic diagrams of the present utility model;

[0024] Figure 4 is Figure 3 the enlarged view of part A in

[0025] Figure 5 is another partial structural schematic diagram of the present utility model;

[0026] Figure 6 is the structural schematic diagram of the upper ring plate.

[0027] In the figure, 1, circular tubular column; 11, connection hole; 111, upper through hole; 112, lower through hole; 2, precast beam; 21, groove; 22, pouring groove; 23, clamping protrusion; 3, upper ring plate; 31, partition plate; 32, installation position; 321, upper partition position; 322, lower partition position; 4, supporting plate; 41, reserved hole groove; 42, corbel structure; 421, corbel component; 5, gap; 6, steel bar; 7, stud. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] Such as Figure 1 、 Figure 2As shown in the figure, the utility model provides a node structure between a circular pipe column and a precast beam, which includes a circular pipe column 1 and several precast beams 2. An upper ring plate 3 and a supporting plate 4 are arranged on the circular pipe column 1, and the upper ring plate 3 and the supporting plate 4 are arranged at intervals. Several precast beams 2 are arranged around between the upper ring plate 3 and the supporting plate 4. Preferably, the circular pipe column 1 is installed vertically upward, and the precast beam 2 is installed horizontally. Four precast beams 2 are arranged around between each upper ring plate 3 and the corresponding supporting plate 4, and the included angle between two adjacent precast beams 2 is 90°, so as to realize the stable connection between the circular pipe column 1 and the precast beam 2. Of course, it can also be designed that two precast beams 2 are arranged around between each upper ring plate 3 and the corresponding supporting plate 4, and the included angle between the two precast beams 2 is 90° or 180°. In actual design, the number of precast beams 2 between each upper ring plate 3 and the corresponding supporting plate 4 and the included angle between the precast beams 2 can be designed according to actual needs. In addition, both the upper ring plate 3 and the supporting plate 4 are integrally formed with the circular pipe column 1, which improves the assembly stability of the upper ring plate 3 and the supporting plate 4 with the circular pipe column 1. In addition, the precast beam 2 is a precast concrete beam, that is, the main structure of the utility model adopts precast components, and the on-site construction of the node between the circular pipe column 1 and the precast beam 2 is simple, and the installation is faster than that of the traditional cast-in-place structure.

[0030] As Figure 3 、 Figure 4 shown, in this embodiment, there is a gap 5 between the end of the precast beam 2 and the circular pipe column 1, so that there is enough reserved space between the precast beam 2 and the circular pipe column 1 for the precast beam 2 to be in place, so as to complete the installation. During construction, the gap 5 between the end of the precast beam 2 and the circular pipe column 1 is filled with concrete, and through the curing effect of the concrete, the precast beam 2 and the circular pipe column 1 are connected together. In addition, the shortest distance between the end of the precast beam 2 and the circular pipe column 1 is 100 mm to 110 mm. Preferably, the shortest distance between the end of the precast beam 2 and the circular pipe column 1 is 105 mm. Of course, in actual design, the shortest distance between the end of the precast beam 2 and the circular pipe column 1 can be designed according to the situation. In addition, a groove 21 is formed by the inward depression of the end of the precast beam 2, which increases the contact area between the precast beam 2 and the concrete and improves the strength of the precast beam 2 and the circular pipe column 1. At the same time, the groove depth of the groove 21 can be designed to be 5 mm to 10 mm. Preferably, the groove depth of the groove 21 is 5 mm. Of course, in actual design, the groove depth of the groove 21 can be designed according to the situation.

[0031] As Figure 1 、 Figure 3 、 Figure 4As shown, in this embodiment, a plurality of steel bars 6 are provided on the top of the precast beam 2. The length directions of the plurality of steel bars 6 are parallel to the length direction of the precast beam 2. A plurality of partition plates 31 distributed vertically are arranged around the upper ring plate 3. Two adjacent partition plates 31 on the left and right and the upper ring plate 3 enclose a plurality of installation positions 32. A plurality of connection holes 11 corresponding to the installation positions 32 one by one are provided on the circular tube column 1. One end of each of the plurality of steel bars 6 passes through the corresponding connection hole 11, so that the precast beam 2 and the circular tube column 1 are effectively connected.

[0032] As Figure 1 , Figures 3 to 6 shown, specifically, the connection hole 11 is divided into an upper through hole 111 and a lower through hole 112 located below the upper through hole 111. The upper through holes 111 are arranged at equal intervals, and the lower through holes 112 are arranged at equal intervals. The installation position 32 is divided into an upper partition position 321 and a lower partition position 322 located below the upper partition position 321. The upper through hole 111 is arranged on the corresponding upper partition position 321, and the lower through hole 112 is arranged on the corresponding lower partition position 322. The plurality of steel bars 6 are divided into an upper steel bar 6 group and a lower steel bar 6 group located below the upper steel bar 6 group; a pouring groove 22 is provided on the top of the precast beam 2. The upper steel bar 6 group is located above the pouring groove 22. One end of the upper steel bar 6 group passes through the corresponding upper through hole 111. The lower steel bar 6 group is arranged in the pouring groove 22, and one end of the lower steel bar 6 group passes through the corresponding lower through hole 112. In addition, when the node structures of two circular tube columns 1 are connected to the left and right of the precast beam 2, one end of the upper steel bar 6 group passes through the upper through hole 111 of one circular tube column 1, and the other end of the upper steel bar 6 group passes through the upper through hole 111 of the other circular tube column 1. One end of the lower steel bar 6 group passes through the lower through hole 112 of one circular tube column 1, and the other end of the lower steel bar 6 group passes through the lower through hole 112 of the other circular tube column 1. During construction, concrete is poured into the pouring groove 22, increasing the contact area between the precast beam 2 and the concrete, and further enhancing the integrity of the structure. At the same time, the concrete is poured starting from the upper surface of the supporting plate 4, so that the pouring height of the concrete covers the entire upper ring plate 3, thereby realizing the node connection between the circular tube column 1 and the precast beam 2, improving the stability and durability of the overall structure, simplifying the construction process, and improving the construction efficiency.

[0033] As Figure 5 shown, in this embodiment, stud bolts 7 are further provided between the upper ring plate 3 and the supporting plate 4. One end of the stud bolt 7 is connected to the circular tube column 1. The stud bolts 7 can be arranged in two rows up and down. The two rows of stud bolts 7 are arranged around the circular tube column 1. When the concrete is poured, the concrete covers the stud bolts 7, further improving the connection strength between the circular tube column 1 and the concrete. In addition, the stud bolts 7 also promote the stress distribution inside the concrete, so that when subjected to external forces, the load can be more effectively dispersed to the entire structural system, improving the overall load-bearing capacity and seismic performance of the structure.

[0034] As Figure 2, Figure 5 As shown in the figure, in this embodiment, a number of reserved holes and grooves 41 are provided on the supporting plate 4, embedded steel plates are provided on the precast beam 2, and clamping protrusions 23 are provided on the embedded steel plates. The clamping protrusions 23 are welded to the side walls of the reserved holes and grooves 41. During fabrication, groove plug welding is performed between the clamping protrusions 23 and the side walls of the reserved holes and grooves 41. That is, after hoisting and positioning, the embedded steel plate and the supporting plate 4 are welded and fixed to ensure the installation accuracy and the safety of the precast beam 2 before the concrete is poured. The reserved holes and grooves 41 provided on the supporting plate 4 match the clamping protrusions 23 of the embedded steel plate on the precast beam 2, realizing the precise positioning of the precast beam 2 on the tubular column 1. During installation, only the clamping protrusions 23 need to be aligned with the reserved holes and grooves 41 and inserted, and then welded and fixed to ensure the connection accuracy and stability between the precast beam 2 and the tubular column 1. During the construction process, no additional measuring tools are required, reducing the cumbersome measuring and checking steps in the traditional connection method, improving the installation efficiency, and helping to speed up the project progress.

[0035] In this embodiment, the width of the reserved holes and grooves 41 is 55 mm to 65 mm, and the length of the reserved holes and grooves 41 is 95 mm to 105 mm. Preferably, the width of the reserved holes and grooves 41 can be designed to be 60 mm, and the length of the reserved holes and grooves 41 is 100 mm. The corresponding width of the clamping protrusions 23 is 40 mm, the corresponding length of the clamping protrusions 23 is 60 mm, and the corresponding height of the clamping protrusions 23 is 45 mm. Of course, during actual design, the width and length of the reserved holes and grooves 41 and the dimensions of the clamping protrusions 23 corresponding to the reserved holes and grooves 41 can be designed according to the actual situation. In addition, the length of the embedded steel plate is 145 mm to 155 mm. Preferably, the length of the embedded steel plate is 150 mm. Of course, during actual design, the length of the embedded steel plate can be designed according to the actual situation.

[0036] As Figure 2 , Figure 5 shown in the figure, in this embodiment, a plurality of corbel structures 42 corresponding to the reserved holes and grooves 41 one by one are arranged around the bottom of the supporting plate 4. Specifically, the corbel structure 42 includes two corbel components 421. The two corbel components 421 are symmetrically arranged on both sides below the reserved holes and grooves 41. The corbel component 421 includes a first side surface and a second side surface. The first side surface is perpendicular to the second side surface. The first side surface is connected to the supporting plate 4, and the second side surface is connected to the tubular column 1. The corbel structure 42 provides an effective support for the lapping of the precast beam 2 and bears the shear force at the beam end of the precast beam 2. In addition, the setting of the corbel structure 42 enables the present utility model to meet the installation requirements without support and without large-scale mechanical equipment except for hoisting, simplifies the on-site procedures, reduces the construction measure cost, and thus achieves the purpose of cost reduction and efficiency improvement.

[0037] When the utility model is installed, first, the circular tube column 1 is installed on the ground, and then the precast beam 2 is hoisted and positioned, so that the clamping convex 23 of the embedded steel plate of the precast beam 2 is welded and fixed to the side wall of the reserved hole groove 41 of the circular tube column 1. Then, the steel bars 6 are passed through the corresponding connecting holes 11, and the steel bars 6 are tied with stirrups. Then, formwork is supported at the joint of the circular tube column 1 and the precast beam 2 to facilitate the pouring of concrete on the upper ring plate 3 and the supporting plate 4, so that the beam surface and the joint concrete are poured. After the joints of the circular tube column 1 and the precast beam 2 on one floor are installed, the joints of the circular tube column 1 and the precast beam 2 on the next floor are installed. The utility model is convenient for construction and does not require support. After the precast beam 2 is positioned, there is no need to wait, and subsequent processes can be constructed in advance, improving the overall construction progress on site and greatly shortening the construction period.

[0038] It should be understood that for those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of the present utility model.

[0039] The above has made an exemplary description of the utility model patent in conjunction with the drawings. Obviously, the implementation of the utility model patent is not limited by the above methods. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. A node structure of a circular tube column and a prefabricated beam, characterized in that: It comprises a circular tube column and a plurality of prefabricated beams, wherein an upper ring plate and a support plate are arranged on the circular tube column, the upper ring plate and the support plate are arranged at intervals, and a plurality of prefabricated beams are arranged around the upper ring plate and the support plate; The support plate is provided with a plurality of reserved holes and grooves, the prefabricated beam is provided with an embedded steel plate, the embedded steel plate is provided with a clamping protrusion, and the clamping protrusion is welded to the side wall of the reserved holes and grooves.

2. The node structure of the circular tube column and prefabricated beam according to claim 1 is characterized in that: A plurality of steel bars are arranged on the top of the prefabricated beam, a plurality of partition plates distributed up and down are arranged around the upper ring plate, two adjacent partition plates on the left and right are arranged with the upper ring plate to form a plurality of installation positions, a plurality of connection holes corresponding to the installation positions are arranged on the circular tube column, and one end of the plurality of steel bars passes through the corresponding connection holes.

3. The node structure of the circular tube column and prefabricated beam according to claim 2 is characterized in that: The connecting hole is divided into an upper through hole and a lower through hole located below the upper through hole, and the plurality of steel bars are divided into an upper steel bar group and a lower steel bar group located above the upper steel bar group; A casting trough is provided on the top of the precast beam, the upper steel bar group is located above the casting trough, one end of the upper steel bar group passes through the corresponding upper through hole, the lower steel bar group is arranged in the casting trough, and one end of the lower steel bar group passes through the corresponding lower through hole.

4. The node structure of the circular tube column and prefabricated beam according to claim 3 is characterized in that: The installation position is divided into an upper partition position and a lower partition position located below the upper partition position. The upper through hole is arranged on the corresponding upper partition position, and the lower through hole is arranged on the corresponding lower partition position.

5. The node structure of the circular tube column and prefabricated beam according to claim 1 is characterized in that: There is a gap between the end of the prefabricated beam and the circular tube column.

6. The node structure of the circular tube column and prefabricated beam according to claim 1 is characterized in that: A bolt is also provided between the upper ring plate and the supporting plate, and one end of the bolt is connected to the circular tube column.

7. The node structure of the circular tube column and prefabricated beam according to claim 1 is characterized in that: A plurality of corbel structures corresponding to the reserved hole grooves are arranged around the bottom of the support plate, and the corbel structure includes two corbel parts, and the two corbel parts are symmetrically arranged on both sides below the reserved hole grooves, and the corbel parts include a first side surface and a second side surface, the first side surface is perpendicular to the second side surface, the first side surface is connected to the support plate, and the second side surface is connected to the circular tube column.

8. The node structure of the circular tube column and prefabricated beam according to claim 1 is characterized in that: The width of the reserved hole groove is 55mm~65mm.

9. The node structure of the circular tube column and prefabricated beam according to claim 1 is characterized in that: The length of the reserved hole groove is 95mm~105mm.

10. The node structure of the circular tube column and prefabricated beam according to claim 1, characterized in that: The length of the embedded steel plate is 145mm~155mm.

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