CN108193771A - A kind of assembling rectangular steel-tube concrete column-girder steel partition board perforation node - Google Patents

Abstract

An assembled rectangular steel pipe concrete column-steel girder partition through joint belongs to the technical field of building structure engineering. The joints include rectangular steel pipe concrete columns, multiple corbel steel beams, multiple connecting plates, two through partitions and multiple end plates; the corbel steel beams include upper flanges, lower flanges and webs; two The through partitions are the first partition and the second partition respectively, the first partition and the second partition are respectively connected with the two ends of the rectangular steel tube concrete column, and each through partition is provided with a plurality of extensions in different directions. For the arms, the arms of the first partition and the second partition in the same direction are connected with the upper and lower flanges of the corresponding corbel steel beams; the rectangular steel pipe concrete column wall is connected with one end of the corresponding connecting plate, and the The other end of the plate is connected to the web at one end of the corresponding corbel beam, and the other end of the corbel beam is connected to the end plate. The nodes are prefabricated in the factory and shipped to the site for installation, which reduces the amount of on-site welding and ensures processing accuracy.

Description

An Assembled Rectangular Steel Tube Concrete Column-Steel Beam Partition Through Joint

technical field

The invention relates to the technical field of building structure engineering, in particular to an assembled rectangular steel pipe concrete column-steel beam partition through joint.

Background technique

The rectangular concrete-filled steel tube column is conveniently connected to the steel beam, the force of the connection node is clear, the bearing capacity is high, and the reliability is high. The frame system formed by connecting with steel beams has the advantages of flexible layout, simple structure, and easy realization of standardization of components. Therefore, the joints between rectangular square concrete-filled steel tube columns and steel beams have shown good application prospects in high-rise and super high-rise buildings.

my country's "Technical Regulations for Rectangular Concrete-filled Steel Tube Structures" (CECS159:2004) recommends four types of rectangular concrete-filled steel tube column-steel beam connection nodes: inner diaphragm connection, inner diaphragm connection with short beams, outer ring plate connection, Partition through connection. Diaphragm through connections include fully bolted diaphragm through connections. The inside of the joint of the inner diaphragm joint is not easy to be welded, which affects the pouring of the concrete in the tube, and makes it affected by the side length of the CFST column in application. The outer ring plate joint needs a sufficiently large horizontal ring plate to ensure the strength of the joint, resulting in a significant increase in steel consumption. The overall joint section of the partition through joint can be prefabricated in the factory, the acceptance mechanism is clear, the buckling deformation of the column wall can be reduced, the bearing capacity is high, and the "strong joint, weak member" of the structure can be realized.

At present, there is a large amount of on-site welding at the penetration joint of the partition, and there is secondary welding at the connection position between the partition and the steel column, and the welding quality is not easy to guarantee. Although the full-bolt diaphragm penetration joints reduce the amount of on-site welding, the steel beams and rectangular steel tube concrete columns still need to be installed on site. Due to the insufficient precision of the current component manufacturing in our country, there are often errors in the position of the bolt holes, which lead to the phenomenon that the steel beam cannot be installed.

Contents of the invention

In order to solve the technical problems of large amount of on-site welding of nodes and high requirements on machining accuracy in the prior art, the present invention provides an assembled rectangular steel tube concrete column-steel beam partition through node, which includes a rectangular steel tube concrete column, a plurality of Leg steel beams, multiple connection plates, two through bulkheads, and multiple end plates.

The corbel steel beam includes an upper flange, a lower flange and a web, and the two through partitions are the first partition and the second partition respectively, and the first partition and the second partition are respectively connected with the rectangular concrete filled steel pipe column The two ends are connected, and each through partition is provided with a plurality of extension arms in different directions, and the extension arms in each direction correspond to a side wall of the rectangular steel tube concrete column, and each extension arm corresponds to a corbel steel beams, and each corbel steel beam corresponds to a connecting plate, the extension arms of the first partition and the second partition in the same direction are connected with the upper and lower flanges of the corresponding corbel steel beams, and each through partition A through hole is set on the plate, the column wall of the rectangular steel pipe concrete column is connected with one end of the corresponding connecting plate, the other end of the connecting plate is connected with the web plate of one end of the corresponding corbel steel beam, and the other end of the corbel steel beam is connected with the end plate .

The first partition is fixedly connected to the port at one end of the rectangular steel tube concrete column by welding, and the second partition is fixedly connected to the port at the other end of the rectangular steel tube concrete column by welding.

The extension arm is welded or bolted to the upper and lower flanges of the corresponding corbel steel beam.

The connecting plate is welded to the wall of the corresponding rectangular steel pipe concrete column.

The connecting plate is welded or bolted to the web of the corresponding corbel steel beam.

The number of the corbel steel beams is 2, 3 or 4, and the number of the corbel steel beams, the connecting plates, the extension arms and the end plates is the same.

The corbel steel beam is welded to the corresponding end plate.

The first partition and the second partition are respectively connected with flanged rectangular steel tube concrete column bolts.

The end plate is connected with the steel beam with the long round hole through the end plate connecting plate.

The connecting plate of the end plate is welded to the end plate, and is connected to the steel beam with the oblong hole by bolts.

The beneficial effects of the assembled rectangular steel pipe concrete column-steel beam partition through the joint described in the present invention are as follows:

1. The joints composed of rectangular steel tube concrete columns, corbel steel beams, connection plates, through partitions and end plates are prefabricated in the factory and transported to the site for installation, which reduces the amount of on-site welding and ensures the processing accuracy.

2. The flanged rectangular concrete-filled steel tube column is bolted to the partition, which avoids the defects of large amount of welding on site and the welding quality cannot be guaranteed. Since the partition is a thick steel plate, this setting avoids secondary welding through the partition resulting in lamellar tearing of the separator.

3. The end plate is connected with the steel beam bolts with long round holes through the end plate connecting plate, and the errors of installation and processing are absorbed through the long round holes to ensure the installation accuracy.

4. The node is prefabricated in the factory as a whole, which fully realizes the assembly construction of the structure. The construction speed is fast and the connection quality is easy to guarantee.

Description of drawings

Fig. 1 is an exploded schematic view of the connection between a node and a steel beam provided by the present invention.

Fig. 2 is an exploded schematic diagram of a node provided by the present invention.

Fig. 3 is a schematic three-dimensional structure diagram of Embodiment 1 provided by the present invention.

Fig. 4 is a top view of Embodiment 1 provided by the present invention.

Fig. 5 is a front view of Embodiment 1 provided by the present invention.

Fig. 6 is a schematic three-dimensional structure diagram of Embodiment 2 provided by the present invention.

Fig. 7 is a top view of Embodiment 2 provided by the present invention.

Fig. 8 is a front view of Embodiment 2 provided by the present invention.

Fig. 9 is a schematic three-dimensional structure diagram of Embodiment 3 provided by the present invention.

Fig. 10 is a top view of Embodiment 3 provided by the present invention.

Fig. 11 is a front view of Embodiment 3 provided by the present invention.

Fig. 12 is a schematic three-dimensional structure diagram of Embodiment 4 provided by the present invention.

Fig. 13 is a top view of Embodiment 4 provided by the present invention.

Fig. 14 is a front view of Embodiment 4 provided by the present invention.

in,

1 Rectangular concrete-filled steel pipe column, 2 Corbel steel beam, 3 Connection plate, 4 Through partition, 5 End plate, 6 Extending arm, 7 Through hole, 8 Rectangular steel pipe concrete column with flange, 9 Flange, 10 Steel Beam, 11 oblong holes, 12 end plate connecting plates, 13 upper flange, 14 lower flange, 15 web, 16 first partition, 17 second partition, 18 bolts.

Detailed ways

In order to solve the problems existing in the prior art, as shown in Fig. 1 to Fig. 14, the present invention provides an assembled rectangular steel tube concrete column-steel beam partition through joint, including a rectangular steel tube concrete column 1, a plurality of corbel steel Beam 2, multiple connecting plates 3, two through partitions 4 and multiple end plates 5;

The corbel steel beam 2 includes an upper flange 13, a lower flange 14, and a web 15. The two through partitions 4 are the first partition 16 and the second partition 17 respectively. The first partition 16 and the rectangular steel pipe concrete column 1. The port at one end is fixedly connected by welding, and the second partition 17 is fixedly connected with the port at the other end of the rectangular steel pipe concrete column 1 by welding. Each penetrating partition 4 is provided with a plurality of extending arms 6 in different directions. And the extending arm 6 in each direction corresponds to the column wall on one side of the rectangular steel pipe concrete column 1, each extending arm 6 corresponds to a corbel steel beam 2, and each corbel steel beam 2 corresponds to a connecting plate 3, the first A partition 16 and the extension arm 6 of the second partition 17 in the same direction are connected with the upper flange 13 and the lower flange 14 of the corresponding corbel steel beam 2, and a through hole 7 is set on each through partition, rectangular The column wall of the steel pipe concrete column 1 is welded to one end of the corresponding connecting plate 3, the other end of the connecting plate 3 is connected to the web 15 at one end of the corresponding corbel steel beam 2, and the other end of the corbel steel beam 2 is connected to the corresponding The end plate 5 is welded and connected;

The first dividing plate 16 and the second dividing plate 17 are respectively connected with the flange 9 of the rectangular steel pipe concrete column 8 with the flange by bolts 18;

The end plate 5 is welded to one end of the end plate connecting plate 12, and the other end of the end plate connecting plate 12 is connected to the steel beam 10 with the oblong hole 11 through a bolt 18;

The outer steel pipe of the rectangular concrete-filled steel tube column 1 is a welded steel plate, butt channel steel or cold-formed steel pipe;

The steel beam 10 is an H-shaped steel beam or an I-shaped steel beam;

The connecting plate 3 and the column wall of the rectangular steel pipe concrete column 1 adopt groove welds or fillet welds;

The bolt 18 is preferably a high-strength bolt;

The concrete inside the rectangular concrete-filled steel tube column 1 is ordinary concrete, high-strength concrete or self-compacting concrete.

In the present invention, the number of corbel steel beams 2 can be 2, 3 or 4, and the number of the corbel steel beams 2, the connecting plates 3, the extension arms 6 and the end plates 5 is the same , the following takes the number of corbel steel beams 2, connecting plates 3, outriggers 6 and end plates 5 as four as an example for detailed introduction.

Example 1

As shown in Figures 3 to 5, the extension arms 6 of the first partition 16 and the second partition 17 in the same direction are connected to the upper flange 13 and the lower flange 14 of the corbel steel beam 2 by bolts 18 , the column wall of the rectangular steel pipe concrete column 1 is welded to one end of the corresponding connecting plate 3, and the other end of the connecting plate 3 is connected to the web 15 at one end of the corresponding corbel steel beam 2 through bolts 18.

The specific implementation process of the assembled rectangular concrete-filled steel tube column-steel beam partition joint in Example 1 includes:

Step 1. According to the node size determined according to the design requirements, process the penetrating partition 4, extend the outrigger flange of the column wall of the rectangular steel tube concrete column 1 that is sufficiently long to ensure that the bolt connection can be realized, and pass through the partition 4. The outstretched arm 6 gradually transitions to the same width as the corbel steel beam 2;

Step 2. Bolt holes are reserved on the outstretched flange of the penetrating partition 4, and bolt holes are reserved on the extending arm 6 of the penetrating partition 4. The number and diameter of the bolt holes are determined according to the requirements of the design bearing capacity;

Step 3. Bolt holes are reserved on the connecting plate 3, which is determined according to the shear bearing capacity;

Step 4. Weld and connect the first partition 16 and the second partition 17 to the rectangular steel tube concrete column 1 between them in the factory, and at the same time weld the connecting plate 3 to the column wall of the rectangular steel tube concrete column 1 to form a node domain component;

Step 5, process the rectangular concrete-filled steel tube column 8 with the flange, process the reserved bolt holes on the flange 9 with the same position and quantity as those on the through partition plate 4, and assemble them in the factory;

Step 6, process the corbel steel beam 2 with bolt holes, the position and quantity of the bolt holes on the upper flange 13 and the lower flange 14 are the same as those of the outrigger 6, and the position and quantity of the bolt holes on the web 15 are the same as those connected Same for plate 3;

Step 7: Assemble the corbel steel beam 2 with the node domain members, the upper flange 13 and the lower flange 14 are respectively connected with the extension arms 6 of the first partition 16 and the second partition 17 by bolts 18, and the web 15 and the connection plate 3 are connected by bolts 18, and the corbel steel beam 2 and the node domain components are transported to the site as a whole and installed as a whole;

Step 8, machining oblong holes 11 on the steel beam 10, machining bolt holes in the end plate connecting plate 12, the quantity and position of the bolt holes correspond to the oblong holes 11;

Step 9. At the site, after the installation of the lower rectangular concrete-filled steel tube column 8 with flanges is completed, connect the flange 9 with the second partition 17 on the node domain member through bolts 18, and then connect the first partition 16 with the upper The flange 9 of the rectangular steel tube concrete column 8 with flange is connected by bolt 18;

Step 10, welding and connecting the end plate 5 and the end plate connecting plate 12 on site, and connecting the end plate connecting plate 12 and the steel beam 10 through bolts 18 .

Example 2

As shown in Figures 6 to 8, the extension arms 6 of the first partition 16 and the second partition 17 in the same direction are welded to the upper flange 13 and the lower flange 14 of the corresponding corbel steel beam 2, rectangular The column wall of the steel pipe concrete column 1 is welded to one end of the corresponding connecting plate 3 , and the other end of the connecting plate 3 is connected to the web 15 at one end of the corresponding corbel steel beam 2 by bolts 18 .

The specific implementation process of the assembled rectangular steel pipe concrete column-steel beam partition through joint in Example 2 includes:

Step 1. According to the node size determined according to the design requirements, process the penetrating partition 4, extend the outrigger flange of the column wall of the rectangular steel tube concrete column 1 that is sufficiently long to ensure that the bolt connection can be realized, and pass through the partition 4. The outstretched arm 6 gradually transitions to the same width as the corbel steel beam 2;

Step 2. Bolt holes are reserved on the overhanging flange of the penetrating partition 4, and the number and diameter of the bolt holes are determined according to the requirements of the design bearing capacity;

Step 3. Bolt holes are reserved on the connecting plate 3, which is determined according to the shear bearing capacity;

Step 4. Weld and connect the first partition 16 and the second partition 17 to the rectangular steel tube concrete column 1 between them in the factory, and at the same time weld the connecting plate 3 to the column wall of the rectangular steel tube concrete column 1 to form a node domain component;

Step 5, process the rectangular concrete-filled steel tube column 8 with the flange, process the reserved bolt holes on the flange 9 with the same position and quantity as those on the through partition plate 4, and assemble them in the factory;

Step 6, processing the corbel steel beam 2 with grooves at the end, processing bolt holes on the web 15, the position and quantity of the bolt holes are the same as those of the connecting plate 3;

Step 7: Assemble the corbel steel beam 2 with the node domain members, the upper flange 13 and the lower flange 14 are respectively connected to the extension arms 6 of the first partition 16 and the second partition 17 by welding, and the web 15 Connect with the connection plate 3 through bolts 18, and transport the corbel steel beam 2 and the node domain components as a whole to the site for overall installation;

Step 8, machining oblong holes 11 on the steel beam 10, machining bolt holes in the end plate connecting plate 12, the quantity and position of the bolt holes correspond to the oblong holes 11;

Step 9. At the site, after the installation of the lower rectangular concrete-filled steel tube column 8 with flanges is completed, connect the flange 9 with the second partition 17 on the node domain member through bolts 18, and then connect the first partition 16 with the upper The flange 9 of the rectangular steel tube concrete column 8 with flange is connected by bolt 18;

Step 10, welding and connecting the end plate 5 and the end plate connecting plate 12 on site, and connecting the end plate connecting plate 12 and the steel beam 10 through bolts 18 .

Example 3

As shown in Figures 9 to 11, the extension arms 6 of the first partition 16 and the second partition 17 in the same direction are welded to the upper flange 13 and the lower flange 14 of the corresponding corbel steel beam 2, rectangular The column wall of the steel pipe concrete column 1 is welded to one end of the corresponding connecting plate 3 , and the other end of the connecting plate 3 is welded to the web 15 at one end of the corresponding corbel steel beam 2 .

The specific implementation process of the assembled rectangular steel pipe concrete column-steel beam partition through joint in Example 3 includes:

Step 1. According to the node size determined according to the design requirements, process the penetrating partition 4, extend the outrigger flange of the column wall of the rectangular steel tube concrete column 1 that is sufficiently long to ensure that the bolt connection can be realized, and pass through the partition 4. The outstretched arm 6 gradually transitions to the same width as the corbel steel beam 2;

Step 2. Bolt holes are reserved on the overhanging flange of the penetrating partition 4, and the number and diameter of the bolt holes are determined according to the requirements of the design bearing capacity;

Step 3, processing the connecting plate 3 with grooves;

Step 4. Weld and connect the first partition 16 and the second partition 17 to the rectangular steel tube concrete column 1 between them in the factory, and at the same time weld the connecting plate 3 to the column wall of the rectangular steel tube concrete column 1 to form a node domain component;

Step 5, process the rectangular concrete-filled steel tube column 8 with the flange, process the reserved bolt holes on the flange 9 with the same position and quantity as those on the through partition plate 4, and assemble them in the factory;

Step 6, processing the corbel steel beam 2 with grooves at the end;

Step 7: Assemble the corbel steel beam 2 with the node domain members, the upper flange 13 and the lower flange 14 are respectively connected to the extension arms 6 of the first partition 16 and the second partition 17 by welding, and the web 15 It is connected with the connection plate 3 by welding, and the corbel steel beam 2 and the node domain components are transported to the site as a whole and installed as a whole;

Step 8, machining oblong holes 11 on the steel beam 10, machining bolt holes in the end plate connecting plate 12, the quantity and position of the bolt holes correspond to the oblong holes 11;

Step 9. At the site, after the installation of the lower rectangular concrete-filled steel tube column 8 with flanges is completed, connect the flange 9 with the second partition 17 on the node domain member through bolts 18, and then connect the first partition 16 with the upper The flange 9 of the rectangular steel tube concrete column 8 with flange is connected by bolt 18;

Step 10, welding and connecting the end plate 5 and the end plate connecting plate 12 on site, and connecting the end plate connecting plate 12 and the steel beam 10 through bolts 18 .

Example 4

As shown in Figures 12 to 14, the extension arms 6 of the first partition 16 and the second partition 17 in the same direction are connected to the upper flange 13 and the lower flange 14 of the corbel steel beam 2 by bolts 18 , the column wall of the rectangular steel pipe concrete column 1 is welded to one end of the corresponding connecting plate 3 , and the other end of the connecting plate 3 is welded to the web 15 at one end of the corresponding corbel steel beam 2 .

The specific implementation process of the assembled rectangular concrete filled steel pipe column-steel beam partition through joint in Example 4 includes:

Step 1. According to the node size determined according to the design requirements, process the penetrating partition 4, extend the outrigger flange of the column wall of the rectangular steel tube concrete column 1 that is sufficiently long to ensure that the bolt connection can be realized, and pass through the partition 4. The outstretched arm 6 gradually transitions to the same width as the corbel steel beam 2;

Step 2. Bolt holes are reserved on the outstretched flange of the penetrating partition 4, and bolt holes are reserved on the extending arm 6 of the penetrating partition 4. The number and diameter of the bolt holes are determined according to the requirements of the design bearing capacity;

Step 3, processing the connecting plate 3 with grooves;

Step 4. Weld and connect the first partition 16 and the second partition 17 to the rectangular steel tube concrete column 1 between them in the factory, and at the same time weld the connecting plate 3 to the column wall of the rectangular steel tube concrete column 1 to form a node domain component;

Step 5, process the rectangular concrete-filled steel tube column 8 with the flange, process the reserved bolt holes on the flange 9 with the same position and quantity as those on the through partition plate 4, and assemble them in the factory;

Step 6, processing the corbel steel beam 2 with bolt holes, the position and quantity of the bolt holes of the upper flange 13 and the lower flange 14 are the same as those of the extension arm 6;

Step 7: Assemble the corbel steel beam 2 with the node domain members, the upper flange 13 and the lower flange 14 are respectively connected with the extension arms 6 of the first partition 16 and the second partition 17 by bolts 18, and the web 15 and the connection plate 3 are connected by welding, and the corbel steel beam 2 and the node domain components are transported to the site as a whole and installed as a whole;

Step 8, machining oblong holes 11 on the steel beam 10, machining bolt holes in the end plate connecting plate 12, the quantity and position of the bolt holes correspond to the oblong holes 11;

Step 9. At the site, after the installation of the lower rectangular concrete-filled steel tube column 8 with flanges is completed, connect the flange 9 with the second partition 17 on the node domain member through bolts 18, and then connect the first partition 16 with the upper The flange 9 of the rectangular steel tube concrete column 8 with flange is connected by bolt 18;

Step 10, welding and connecting the end plate 5 and the end plate connecting plate 12 on site, and connecting the end plate connecting plate 12 and the steel beam 10 through bolts 18 .

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (10)

1. An assembled rectangular steel pipe concrete column-steel beam partition board through node is characterized by comprising a rectangular steel pipe concrete column, a plurality of bracket steel beams, a plurality of connecting plates, two through partition boards and a plurality of end plates, wherein each bracket steel beam comprises an upper flange, a lower flange and a web plate, the two through partition boards are respectively a first partition board and a second partition board, the first partition board and the second partition board are respectively connected with two ends of the rectangular steel pipe concrete column, each through partition board is provided with a plurality of extending arms in different directions, the extending arms in each direction correspond to one column wall of the rectangular steel pipe concrete column, each extending arm corresponds to one bracket steel beam, each bracket steel beam corresponds to one connecting plate, the extending arms in the same direction of the first partition board and the second partition boards are connected with the upper flange and the lower flange of the corresponding to the corresponding bracket steel beam, and each through partition board is provided with a through hole, the concrete filled steel tubular column wall of rectangle is connected rather than the one end of the connecting plate that corresponds, and the other end of connecting plate is connected rather than the web of the bracket girder steel one end that corresponds, and the other end and the end plate of bracket girder steel are connected.

2. The assembled rectangular concrete filled steel tube column-steel beam partition through node of claim 1, wherein the first partition is fixedly connected with a port at one end of the rectangular concrete filled steel tube column by welding, and the second partition is fixedly connected with a port at the other end of the rectangular concrete filled steel tube column by welding.

3. The assembled rectangular concrete filled steel tube column-steel beam partition through node of claim 1, wherein: the extending arm is connected with the upper flange and the lower flange of the corresponding bracket steel beam in a welding mode or in a bolt mode.

4. The assembled rectangular concrete filled steel tube column-steel beam partition through node of claim 1, wherein the connecting plate is welded with the corresponding rectangular concrete filled steel tube column wall.

5. The assembled rectangular concrete filled steel tube column-steel beam partition through node of claim 1, wherein the connecting plate is welded or bolted to the web of the corbel steel beam corresponding thereto.

6. The assembled rectangular concrete filled steel tube column-steel beam partition through node of claim 1, wherein the number of the corbel steel beams is 2, 3 or 4, and the number of the corbel steel beams, the connecting plate, the outrigger and the end plate is the same.

7. The assembled rectangular concrete filled steel tube column-steel beam partition through node of claim 1, wherein the corbel steel beam is welded to the end plate corresponding thereto.

8. The assembled rectangular concrete filled steel tubular column-steel beam partition through node of claim 1, wherein the first partition and the second partition are respectively bolted to a rectangular concrete filled steel tubular column with a flange.

9. The assembled rectangular concrete-filled steel tube column-steel beam partition through node of claim 1, wherein the end plate is connected with the steel beam with the oblong hole through an end plate connecting plate.

10. The assembled rectangular concrete-filled steel tube column-steel beam partition through node of claim 9, wherein the end plate connecting plate is welded to an end plate and bolted to the steel beam with the oblong hole.