CN114439152A - Core barrel type flange circular steel pipe column joint with self-tapping bolts and construction method thereof - Google Patents
Core barrel type flange circular steel pipe column joint with self-tapping bolts and construction method thereof Download PDFInfo
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- CN114439152A CN114439152A CN202210190690.6A CN202210190690A CN114439152A CN 114439152 A CN114439152 A CN 114439152A CN 202210190690 A CN202210190690 A CN 202210190690A CN 114439152 A CN114439152 A CN 114439152A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 177
- 239000010959 steel Substances 0.000 title claims abstract description 177
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 62
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 238000003466 welding Methods 0.000 claims abstract description 51
- 238000005192 partition Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 1
- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
- 241001330002 Bambuseae Species 0.000 claims 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
- 239000011425 bamboo Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 230000035515 penetration Effects 0.000 abstract description 4
- 238000003672 processing method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
- E04B1/5837—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2418—Details of bolting
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/246—Post to post connections
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B2001/2466—Details of the elongated load-supporting parts
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention provides a core barrel type flange round steel pipe column joint with a self-tapping bolt and a construction method thereof. The method comprises the following steps: a lower layer steel column and an upper layer steel column; a flange plate is arranged between the upper-layer steel column and the lower-layer steel column, and the upper-layer steel column and the lower-layer steel column are detachably connected through the flange plate; a core cylinder is arranged in the lower-layer steel column, the core cylinder is connected with the lower-layer steel column in a plug welding mode through welding, and the upper portion of the core cylinder is nested in the upper-layer steel column; and self-tapping bolt holes are formed in the bottom end of the column wall of the upper-layer steel column at intervals, self-tapping bolt holes are formed in the upper portion of the core barrel, and the core barrel is connected with the upper-layer steel column through self-tapping bolts. The core barrel type flange circular steel pipe column node with the self-tapping bolt can effectively enhance the rigidity of a node area, and is safe, reliable, simple in structure and rapid in assembly. The problems of low construction efficiency, poor welding quality and the like of the traditional full penetration welding joint on-site welding are solved, and the construction progress and efficiency are effectively improved.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a core-tube type flange round steel pipe column joint with self-tapping bolts and a construction method thereof.
Background
The column connection node is the key of the assembly type steel structure building design, and determines the construction progress and the assembly degree of the whole structure. At present, the following problems exist in the full penetration welded joint of the circular steel tube column in the prior art: the on-site welding construction efficiency is low, the on-site welding quality is difficult to guarantee, the damage is serious under the action of earthquake due to the influence of welding stress, the durability is poor, the environmental pollution is serious, and the structure detachability is poor.
At present, the following two types of closed section column connection nodes exist in the civil engineering field in the prior art: close a mouthful cross-section post flange connected node and close a mouthful cross-section post sleeve connected node, its structure all can realize that post and post are all connected with the full bolt high efficiency, but the node type is mostly half rigid coupling node, and structural design is comparatively complicated. Therefore, research and development of more efficient and practical field bolt connection nodes can shorten the construction period and improve the anti-seismic performance of the structure.
Disclosure of Invention
The embodiment of the invention provides a core-tube type flange circular steel pipe column joint with self-tapping bolts and a construction method thereof, and aims to solve the problems that in the prior art, a connection joint of a center column is complex in construction process, low in construction efficiency and poor in anti-seismic performance, and a connection joint of a full-bolt column cannot be rigidly connected.
In order to achieve the purpose, the invention adopts the following technical scheme.
According to an aspect of the present invention, there is provided a core barrel type flanged round steel pipe column node with a self-tapping bolt, including: a lower layer steel column and an upper layer steel column;
a flange plate is arranged between the upper-layer steel column and the lower-layer steel column, and the upper-layer steel column and the lower-layer steel column are detachably connected through the flange plate;
a core barrel is arranged in the lower-layer steel column, the core barrel is connected with the lower-layer steel column in a plug welding mode through welding, and the upper portion of the core barrel is nested in the upper-layer steel column;
and self-tapping bolt holes are formed in the positions, corresponding to the self-tapping bolt holes in the upper part of the core barrel, of the bottom end of the column wall of the upper-layer steel column, and the core barrel is connected with the upper-layer steel column through the self-tapping bolts.
Preferably, a partition plate is arranged at the bottom end of the core cylinder in the lower-layer steel column, and the partition plate is in contact with and fixedly connected with the inner wall of the lower-layer steel column.
Preferably, plug welding holes are formed in the top end of the column wall of the lower-layer steel column at intervals according to a certain angle, the core cylinder is connected with the lower-layer steel column through plug welding, the certain angle corresponds to the core cylinder form, a built-in circular core cylinder is selected and equally divided into 360-degree determined angles according to the number of required plug welding points, plug welding holes are formed in two sides of a cross shape of 15 degrees, and the angle between the two plug welding holes in the same flange plate is 30 degrees.
Preferably, the flange plate comprises a first flange and a second flange, the first flange plate is fixedly connected to the outer side of the top of the lower-layer steel column, the second flange plate is fixedly connected to the outer side of the bottom of the upper-layer steel column, and the upper-layer steel column is detachably connected with the lower-layer steel column through the first flange, the second flange and the high-strength bolt.
Preferably, the first flange and the second flange are provided with high-strength bolt holes according to a certain angle, the first flange plate is connected with the second flange plate through high-strength bolts, and the certain angle is equally divided into 360 degrees according to the number of the high-strength bolts.
Preferably, the core barrel comprises a circular core barrel and a cross-shaped core barrel, the cross section of the circular core barrel is a circular steel pipe, and the cross section of the cross-shaped core barrel is a cross with 1/6 circles at four ends; the upper part of the circular core barrel is equally divided into 360-degree self-tapping bolt holes according to the number of required self-tapping bolts, the cross-shaped flange of the cross-shaped core barrel is 1/6 semi-arc-shaped, the self-tapping bolt holes are formed in the two sides of the upper part of the flange plate, which are 15 degrees with the central cross-shaped flange, and the angle between the two bolt holes in the same flange plate is 30 degrees.
Preferably, the core cylinder is fixed on the inner side of the lower steel column, and the length of the core cylinder arranged in the lower steel column is not less than 200mm and the diameter of the steel column is larger.
Preferably, the length of the core cylinder embedded in the upper-layer steel column is not less than the diameter of the steel column, and the distance between the core cylinder and the wall of the upper-layer steel column is not more than 2 mm.
According to another aspect of the invention, the construction method of the core-tube type flanged round steel pipe column joint with the self-tapping bolts comprises the following steps:
firstly, manufacturing a lower-layer steel column and an upper-layer steel column, wherein the lower-layer steel column and the upper-layer steel column are respectively connected with a first flange and a second flange plate, self-tapping bolt holes are formed in the bottom end of the column wall of the upper-layer steel column at intervals, and bolt holes are formed in the first flange and the second flange at intervals;
step two, arranging a partition plate at the bottom end of the core cylinder in the lower-layer steel column, wherein the partition plate is in contact with and fixedly connected with the inner wall of the lower-layer steel column; manufacturing a core barrel, arranging a self-tapping bolt hole at the upper part of the core barrel, installing the core barrel on an internal partition plate of a lower-layer steel column, and performing plug welding connection on the core barrel and the lower-layer steel column through welding;
step three, assembling an upper-layer steel column and a lower-layer steel column: sleeving the upper-layer steel column with the upper part of the core barrel until the second flange plate is contacted with the first flange plate;
and step four, detachably connecting the first flange plate with the second flange plate through high-strength bolts, and detachably connecting the upper-layer steel column with the core barrel through self-tapping bolts.
According to the technical scheme provided by the embodiment of the invention, the core-tube type flange circular steel pipe column node with the self-tapping bolt provided by the embodiment of the invention can effectively enhance the rigidity of a node area, and is safe and reliable; the structure is simple, and the assembly is rapid; the problems of low construction efficiency, poor welding quality and the like of the traditional full penetration welding joint on site are solved, and the construction progress and efficiency are effectively improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a core barrel type flanged round steel pipe column node with self-tapping bolts according to an embodiment of the invention;
FIG. 2 is an exploded view of a core barrel type flanged round steel pipe column node with self-tapping bolts according to an embodiment of the invention;
FIG. 3 is an exploded view of the underlying steel columns shown in FIG. 1;
FIG. 4 is a cross-shaped core barrel separated type single processing method by adopting a tool in the embodiment of the invention;
FIG. 5 illustrates a method of welding a circular core cylinder to a lower steel column according to an embodiment of the present invention;
fig. 6 illustrates a method for welding the cross core cylinder to the lower steel column according to the embodiment of the present invention.
Wherein, 1-lower layer steel column; 2-upper steel column; 3-a flange plate; 4-a core barrel; 5-self-tapping bolt; 52-self-tapping bolt holes in the upper column wall; 54-self-tapping bolt holes of the core barrel; 6-a separator; 7-high strength bolts; 8-plug welding holes;
31-a first flange plate; 32-second flange plate.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
For the convenience of understanding the embodiments of the present invention, the following description will be further explained by taking several specific embodiments as examples in conjunction with the drawings, and the embodiments are not to be construed as limiting the embodiments of the present invention.
The structural schematic diagram of the core barrel type flange round steel pipe column node with the self-tapping bolts provided by the embodiment of the invention is shown in fig. 1, and the exploded view is shown in fig. 2. Comprises a lower-layer steel column 1 and an upper-layer steel column 2.
Fig. 3 is an exploded view of the lower steel column 1 shown in fig. 1. Be provided with flange plate 3 between upper steel column 2 and lower floor's steel column 1, upper steel column 2 passes through flange plate 3 with lower floor's steel column 1 and can dismantle the connection. The core barrel 4 is arranged inside the lower-layer steel column 1, the plug welding holes 8 are formed in the top end of the column wall of the lower-layer steel column 1 at certain angle intervals, the certain angle corresponds to the core barrel form, a built-in circular core barrel is selected for use and is equally divided into 360-degree determined angles according to the number of required plug welding spots, the plug welding holes 8 are all formed in two sides of the core barrel, which are 15 degrees, of a cross shape in the center of the core barrel, the angle between the two plug welding holes in the same flange plate is 30 degrees, and the core barrel 4 is connected with the lower-layer steel column 2 through plug welding.
The upper part of the core barrel 4 is nested in the upper steel column 2. Tapping bolt holes 52 for installing tapping bolts 5 are arranged at intervals at the positions of the bottom end of the column wall of the upper-layer steel column 2 corresponding to the tapping bolt holes 54 at the upper part of the core barrel 4, and the core barrel 4 and the upper-layer steel column 2 are connected through the tapping bolts 5. The bottom end of the core barrel 4 in the lower steel column 1 is provided with a partition plate 6, and the partition plate 6 is in close contact with the inner wall of the lower steel column 1 and is fixedly connected with the inner wall.
The flange plate 3 comprises a first flange 31 and a second flange 32. Wherein, first flange board 31 fixed connection is in the top outside of lower floor's steel column 1, and second flange board 32 fixed connection is in the bottom outside of upper steel column 2, and upper steel column 2 and lower floor's steel column 1 are through first flange 31, second flange 32 and high-strength bolt 7 detachable connection.
The first flange 31 and the second flange 32 are provided with high-strength bolt holes according to a certain angle, and the bolt hole intervals meet the construction requirements. The certain angle is equally divided into 360 degrees according to the number of the high-strength bolts.
In this embodiment, the core barrel 4 is fixed on the inner side of the lower steel column 1, and the distance between the core barrel 4 and the column wall of the upper steel column 2 is not more than 2 mm. The length of the core cylinder 4 embedded in the upper-layer steel column 1 is not less than the diameter of the steel column, and the length of the lower-layer steel column 1 arranged in the core cylinder is not less than 200mm and the larger value of the diameter of the steel column.
In this embodiment, the core barrel 4 is divided into a circular core barrel and a cross core barrel, wherein the circular core barrel is formed by processing the wall thickness by purchasing the circular steel pipe with the corresponding wall thickness, the cross core barrel is formed by welding a plurality of steel plates, the core barrel 4 is embedded in the upper steel column 2, the length of the lower steel column 1 is not less than 200mm, and the larger value of the diameter of the steel column is arranged in the core barrel.
The cross section of the round core barrel is a round steel pipe, and the cross section of the cross core barrel is a cross with 1/6 circles at four ends.
The upper part of the circular core barrel is provided with self-tapping bolt holes 54 according to a certain angle, and the distance between the bolt holes is required to meet the structural requirement. The certain angle is equally divided into 360 degrees according to the number of the required self-tapping bolts.
The cross flange of the cross core barrel is in the shape of 1/6 semi-arc, self-tapping bolt holes 54 are formed in the two sides of the upper portion of the flange plate, which are 15 degrees with the central cross, the angle between the two bolt holes in the same flange plate is 30 degrees, and the distance between the bolt holes meets the structural requirement.
The construction method of the core-tube type flanged round steel pipe column joint with the self-tapping bolt provided by the embodiment of the invention comprises the following steps:
step S1, manufacturing a lower steel column 1 and an upper steel column 2, wherein the lower steel column 1 and the upper steel column 2 are respectively connected to the first flange 31 and the second flange plate 32, and tapping bolt holes 52 are formed at intervals at positions where the bottom end of the column wall of the upper steel column 2 corresponds to the tapping bolt holes 54 at the upper portion of the core barrel 4. The first flange plate 1 and the second flange plate 2 are provided with high-strength bolt holes at intervals of a certain angle, and the certain angle is equally divided into 360 degrees according to the number of the required high-strength bolts.
Step S2, closely contacting and fixedly connecting the partition board 6 with the inner wall of the lower-layer steel column 1 to manufacture a core barrel 4, arranging a self-tapping bolt hole 54 at the upper part of the core barrel 4, keeping the position consistent with the position 52 of the self-tapping bolt hole on the upper column wall, installing the core barrel 4 on the internal partition board 6 of the lower-layer steel column 1, and performing plug welding connection on the core barrel 4 and the lower-layer steel column 1 through a plug welding hole 8 by welding;
step S3, assembling the upper-layer steel column 2 and the lower-layer steel column 1: and sleeving the upper steel column 2 with the upper part of the core barrel 4 until the second flange plate 32 is contacted with the first flange plate 31.
Step S4, the first flange plate 31 and the second flange plate 32 are detachably connected by the high-strength bolt 7, and the upper layer steel column 2 and the core barrel 4 are detachably connected by the self-tapping bolt 5.
The processing method of the cross core cylinder in the embodiment of the invention by adopting the tool separately is shown in fig. 4, the processing method of welding the circular core cylinder and the lower steel column is shown in fig. 5, and the processing method of welding the cross core cylinder and the lower steel column is shown in fig. 6. Specifically, as shown in fig. 4, the cross-shaped core barrel is formed by welding a plurality of steel plates, and the cross section is a round cross with 1/6 at four ends. The method comprises the following specific steps: a, welding two steel plates b and c and a steel plate a into a cross shape, wherein the steel plates b and c have the same height as a; b-four 1/6 round steel plates are welded with the cross into a whole. In this embodiment, the core barrel 4 is fixed to the inner side of the lower steel column 1 by plug welding. Specifically, as described with reference to fig. 5 and 6, the core barrel 4 and the lower steel column 1 are plug welded through the plug welding holes 8.
In the present invention, the lower-layer steel column 1, the upper-layer steel column 2, the core barrel 4, the partition plate 6, and the like are all made of a normal strength grade steel material (Q355) or a high-performance steel material (Q420).
In conclusion, the core-tube type flanged round steel pipe column node with the self-tapping bolts provided by the embodiment of the invention can effectively enhance the rigidity of the node area, and is safe and reliable; the structure is simple, and the assembly is rapid; the problems of low construction efficiency, poor welding quality and the like of the traditional full penetration welding joint on-site welding are solved, welding is avoided, and construction progress and efficiency are effectively improved.
The core barrel type flange round steel pipe column node with the self-tapping bolt provided by the embodiment of the invention comprehensively utilizes the core barrel, the flange, the bolt and other technologies, provides the core barrel type flange round steel pipe column node with the self-tapping bolt, which is suitable for round steel pipe column splicing, and realizes the full bolt connection and efficient assembly of the structure on the basis of ensuring that the connection performance between a vertical component column with a circular section and a column is rigid connection and consistent with the mechanical property of welding connection.
Those of ordinary skill in the art will understand that: the figures are merely schematic representations of one embodiment, and the blocks or flow diagrams in the figures are not necessarily required to practice the present invention.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for apparatus or system embodiments, since they are substantially similar to method embodiments, they are described in relative terms, as long as they are described in partial descriptions of method embodiments. The above-described embodiments of the apparatus and system are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a take self tapping bolt's core section of thick bamboo formula flange circle steel-pipe column node which characterized in that includes: a lower layer steel column and an upper layer steel column;
a flange plate is arranged between the upper-layer steel column and the lower-layer steel column, and the upper-layer steel column and the lower-layer steel column are detachably connected through the flange plate;
a core barrel is arranged in the lower-layer steel column, the core barrel is connected with the lower-layer steel column in a plug welding mode through welding, and the upper portion of the core barrel is nested in the upper-layer steel column;
and self-tapping bolt holes are formed in the positions, corresponding to the self-tapping bolt holes in the upper part of the core barrel, of the bottom end of the column wall of the upper-layer steel column, and the core barrel is connected with the upper-layer steel column through the self-tapping bolts.
2. The core-tube type flanged round steel pipe column joint with the self-tapping bolt as claimed in claim 1, wherein a partition plate is arranged at the bottom end of the core tube inside the lower steel column, and the partition plate is in contact with and fixedly connected with the inner wall of the lower steel column.
3. The core barrel type flange circular steel pipe column node with the self-tapping bolt according to claim 1 or 2, wherein plug welding holes are formed in the top end of the column wall of the lower steel column at certain angle intervals, the core barrel is connected with the lower steel column through plug welding, the certain angle corresponds to the core barrel form, the built-in circular core barrel is selected to be equally divided into 360 degrees according to the number of required plug welding points, the plug welding holes are formed in two sides of the built-in cross-shaped core barrel, which are 15 degrees from the center cross of the core barrel, and the angle between the two plug welding holes in the same flange plate is 30 degrees.
4. The core-tube flanged round steel pipe column node with self-tapping bolts as claimed in claim 1 or 2, wherein the flange plate comprises a first flange and a second flange, the first flange plate is fixedly connected to the top outer side of the lower steel column, the second flange plate is fixedly connected to the bottom outer side of the upper steel column, and the upper steel column and the lower steel column are detachably connected through the first flange, the second flange and the bolts.
5. The flanged round steel pipe column joint with self-tapping bolts of claim 4, wherein the first flange and the second flange are provided with bolt holes at a certain angle, the first flange plate and the second flange plate are connected by bolts, and the certain angle is equally divided by 360 degrees according to the number of bolts required.
6. The self-tapping bolt equipped core barrel type flanged round steel pipe column node as claimed in claim 1 or 2, wherein the core barrel comprises a circular core barrel and a cross-shaped core barrel, the cross-section of the circular core barrel is a circular steel pipe, and the cross-shaped core barrel is a cross with 1/6 circles at four ends; the upper part of the circular core barrel is equally divided into 360-degree self-tapping bolt holes according to the number of required self-tapping bolts, the cross-shaped flange of the cross-shaped core barrel is 1/6 semi-arc-shaped, the self-tapping bolt holes are formed in the two sides of the upper part of the flange plate, which are 15 degrees with the central cross-shaped flange, and the angle between the two bolt holes in the same flange plate is 30 degrees.
7. The flanged round steel pipe column joint with self-tapping bolts as recited in claim 6, wherein the core barrel is fixed inside the lower steel column, and the length of the core barrel embedded in the lower steel column is not less than 200mm and the diameter of the steel column is larger.
8. The flanged round steel pipe column joint with the self-tapping bolt of the core barrel type with the self-tapping bolt as claimed in claim 7, wherein the length of the core barrel embedded in the upper steel column is not less than the diameter of the steel column, and the distance between the core barrel and the wall of the upper steel column is not more than 2 mm.
9. A construction method of a core barrel type flanged round steel pipe column joint with self-tapping bolts according to any one of claims 1 to 8, characterized by comprising the steps of:
firstly, manufacturing a lower-layer steel column and an upper-layer steel column, wherein the lower-layer steel column and the upper-layer steel column are respectively connected with a first flange and a second flange plate, self-tapping bolt holes are formed in the bottom end of the column wall of the upper-layer steel column at intervals, and bolt holes are formed in the first flange and the second flange at intervals;
step two, arranging a partition plate at the bottom end of the core cylinder in the lower-layer steel column, wherein the partition plate is in contact with and fixedly connected with the inner wall of the lower-layer steel column; manufacturing a core barrel, arranging a self-tapping bolt hole at the upper part of the core barrel, installing the core barrel on an internal partition plate of a lower-layer steel column, and performing plug welding connection on the core barrel and the lower-layer steel column through welding;
step three, assembling an upper-layer steel column and a lower-layer steel column: sleeving the upper-layer steel column with the upper part of the core barrel until the second flange plate is contacted with the first flange plate;
and step four, detachably connecting the first flange plate with the second flange plate through bolts, and detachably connecting the upper-layer steel column with the core barrel through self-tapping bolts.
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| CN202210190690.6A CN114439152B (en) | 2022-02-28 | 2022-02-28 | Core barrel type flange round steel pipe column joint with self-tapping bolts and construction method thereof |
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| CN116856563A (en) * | 2023-09-05 | 2023-10-10 | 北京建筑大学 | Detachable and recyclable double-tube column butt joint node structure and building thereof |
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| CN114439152B (en) | 2023-12-22 |
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