CN111005445A - Assembled connected node between polygon steel pipe and steel member - Google Patents
Assembled connected node between polygon steel pipe and steel member Download PDFInfo
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- CN111005445A CN111005445A CN201911244565.3A CN201911244565A CN111005445A CN 111005445 A CN111005445 A CN 111005445A CN 201911244565 A CN201911244565 A CN 201911244565A CN 111005445 A CN111005445 A CN 111005445A
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- steel pipe
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- steel member
- connecting plate
- polygonal
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 136
- 239000010959 steel Substances 0.000 title claims abstract description 136
- 238000003466 welding Methods 0.000 claims abstract description 9
- 229940104796 equistrength Drugs 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 6
- 238000011161 development Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
-
- 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
- E04B1/19—Three-dimensional framework structures
- E04B1/1903—Connecting nodes specially adapted therefor
-
- 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
- E04B1/19—Three-dimensional framework structures
- E04B2001/1957—Details of connections between nodes and struts
- E04B2001/1963—Screw connections with axis at an angle, e.g. perpendicular, to the main axis of the strut
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses an assembled connecting node of a polygonal steel pipe and a steel member, which comprises a regular polygonal steel pipe and a plurality of steel members connected with the regular polygonal steel pipe, wherein stiffening ribs are arranged in the regular polygonal steel pipe, two ends of the regular polygonal steel pipe are respectively welded with a closed plate, one end of each steel member is connected with one planar side wall of the regular polygonal steel pipe through a connecting plate, the connecting plate is connected with the regular polygonal steel pipe through a fixing bolt, and the steel members are connected with the connecting plate through equal-strength girth welding seams. The invention has small welding workload in site construction, and both the polygonal steel pipe and the steel member can be prefabricated in a factory in advance, thereby conforming to the major trend of national development of assembled structures; the problems of difficult installation, complex operation and the like in field construction can be solved. Non-planar intersection can be realized, and bending moment can be better transmitted. The purposes of improving the production efficiency, accelerating the construction speed and developing domestic assembly type nodes are achieved.
Description
Technical Field
The invention belongs to the technical field of building structures, and particularly relates to an assembly type connecting node between a polygonal steel pipe and a steel member.
Background
At present, in the connection nodes of a reticulated shell structure, a grid structure and the like, the welded hollow spheres and the bolt sphere nodes occupy the main body position and the related technology is mature. Although the welded hollow sphere node has simple structure and reliable force transmission, the welding workload of a construction site is large, the quality requirement of a welding seam is strict, and the manufacturing cost and the construction period are influenced; although the bolt ball joint is simple and convenient to work on site and convenient to produce in batches, the bolt ball joint has the advantages of multiple joint components, long force transmission path and multiple structural safety control points, particularly, the structure of the bolt ball joint has a fatal false tightening phenomenon and is difficult to control in design and construction. In addition, although cast steel nodes can be cast into any shape, the cast steel nodes have the trend of large-scale and complicated with the continuous adoption of high-rise and large-span structures, and are obviously limited by conditions such as transportation, hoisting, manufacturing and the like.
Since the 70 s of the 20 th century, the construction of foreign steel structures began to transform into the assembly. Besides the installation cost is saved, the assembled nodes have better quality assurance and deformation performance. On the aspect of force transmission characteristics, the assembled node is obviously different from the traditional node, and if the assembled node is reasonably utilized, the steel amount of the main body structure can be greatly saved. At present, the structural form of the assembled steel structure which is the key support development in China is determined, the assembled development of the space grid structure is also a necessary trend, and the research and development of the corresponding assembled node are particularly critical. Related research in China starts late, but the assembled nodes occupy an important position and represent the development direction of a grid structure.
Among common assembly type nodes of the existing grid structure, a German Mero KK node is widely applied in China, can adapt to any angle intersection of a rod piece, has low requirements on manufacturing and mounting precision, good appearance effect and low comprehensive cost, but has relatively weak bending moment transmission capacity; also, as the German Mero-4 node, the node is mainly used for a single-layer reticulated shell, the transmission capability of the axial force and the bending moment of the connecting surface is excellent, but the node is deficient in the aspects of adapting to the torsion, appearance coordination, cleaning and the like of a component, and the standardization of the component cannot be realized for a non-planar intersection node, which brings adverse effects on error control and cost control; the Chinese assembly type complex node has complex structure and difficult manufacture and installation, and although the CP node can be suitable for various cross sections, the appearance effect is poor, and the application is nearly absent in China.
Under the condition that polygonal steel pipes can be produced in batches by a factory without being welded and connected, the polygonal steel pipe and steel member assembling type connecting node is applied to a space grid structure, the problems of complex structure, difficulty in manufacturing and installation, poor bending moment transfer capacity and the like are avoided, non-planar intersection node standardization is achieved, and certain necessary and existing values are achieved.
Disclosure of Invention
The invention provides an assembled connecting node of a polygonal steel pipe and a steel member for solving the technical problems in the prior art, which has the advantages of simple structure, convenient manufacture and installation, strong bending moment transmission capacity and capability of realizing non-planar intersection.
The technical scheme adopted by the invention for solving the technical problems in the prior art is as follows: the utility model provides a polygon steel pipe and steel member assembled connected node, this node include an regular polygon steel pipe and a plurality of steel member rather than linking to each other be equipped with stiffening rib in the regular polygon steel pipe each welding in the both ends of regular polygon steel pipe has a closure plate, every the one end of steel member through a connecting plate with a plane lateral wall of regular polygon steel pipe is connected, the connecting plate with regular polygon steel pipe adopts fixing bolt to connect, the steel member with the connecting plate adopts wait to reinforce to enclose the weld joint and connects.
The steel member and the connecting plate are arranged in an oblique mode.
The steel member is arranged orthogonally to the connecting plate.
The steel member with the tip that regular polygon steel pipe connects adopts the undergauge structure, be equipped with the connecting plate through wait strong girth weld joint connect, compare the minor diameter section that steel member main part diameter is little, the minor diameter section pass through the reducing section with the main part of steel member is connected, the both ends of reducing section respectively through wait strong girth weld joint with the minor diameter section with the main part of steel member is connected.
The steel member is any one of a round steel pipe, a square steel pipe and a special-shaped steel pipe.
The fixing bolt is a unilateral bolt.
The number of sides of the regular polygon steel pipe is at least 4.
The invention has the advantages and positive effects that: the steel member is welded with the connecting plate in a surrounding way, and the connecting plate is bolted with the polygonal steel pipe to form an orthogonal or oblique connecting node, so that the welding workload of field construction is small, the welding can be performed in a factory in advance, and then the steel member is transported to the field; the construction is safe, the efficiency is high and the environment is protected; the polygonal steel pipe and the steel member can be prefabricated in a factory in advance, and the large trend of developing an assembled structure in China is met; the problems of difficult installation, complex operation and the like in field construction can be solved. Non-planar intersection can be realized, and bending moment can be better transmitted. The purposes of improving the production efficiency, accelerating the construction speed and developing domestic assembly type nodes are achieved.
Drawings
FIG. 1 is a front view of the present invention applied to the connection of a regular octagonal steel tube and four steel members;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a top cross-sectional view of the present invention applied to the connection of a hexagonal steel pipe and six steel members;
FIG. 4 is a top cross-sectional view of the present invention, using a single-sided bolt as the anchor bolt;
FIG. 5 is a top cross-sectional view of the present invention with a reduced diameter steel member;
FIG. 6 is a front view of the present invention with steel members diagonal to the web.
In the figure: 1. a steel member; 2. a regular polygonal steel pipe; 3. a connecting plate; 4. fixing the bolt; 5. a stiffening rib; 6. a single-sided bolt; 7. and (4) reducing the diameter of the pipe.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1 to 6, the assembled connection node of the polygonal steel pipe and the steel member comprises a regular polygonal steel pipe 2 and a plurality of steel members 1 connected with the regular polygonal steel pipe, wherein a stiffening rib 5 is arranged in the regular polygonal steel pipe 2, two ends of the regular polygonal steel pipe 2 are respectively welded with a sealing plate, one end of each steel member 1 is connected with one planar side wall of the regular polygonal steel pipe 2 through a connecting plate 3, the connecting plate 3 is connected with the regular polygonal steel pipe 2 through a fixing bolt 5, and the steel members 1 and the connecting plate 3 are connected through an equal-strength circumferential weld.
But steel member 1 and connecting plate 3 quadrature girth weld, also can be with the steel member 1 and the 3 oblique girth welds of connecting plate that the processing is the angle of settlement slant cutting in advance, realize that the non-plane between the node intersects.
The steel member 1 may be a round steel pipe, a square steel pipe, a special-shaped steel pipe, or a steel pipe with other cross-sectional forms.
Referring to fig. 1 and 2, only the connection of individual steel members to the regular polygonal steel pipe is illustrated; in fact, the number of the edges of the regular polygonal steel pipes can be matched with the connecting plates, the number of the connecting plates can be reduced or the regular polygonal steel pipes with fewer edges can be adopted according to specific engineering design, and the number of the steel members is matched with the number of the connecting plates.
Referring to fig. 3, the invention is applied to the connection of a regular hexagonal steel pipe and six steel members, and embodies the applicability, flexibility and the like of the fabricated connecting node. According to concrete space grid structure, can select different regular polygon steel pipes or change steel member quantity, realize the assembled connected node between polygon steel pipe and the steel member.
Referring to fig. 4, the fixing bolt is a single-sided bolt 6, so that one-sided installation and tightening are realized, and the problem of connection between steel members using steel with closed sections is solved. Otherwise, the closing plate closing connecting piece needs to be welded after the nut is screwed on the inner side of the polygonal steel pipe. In addition, the steel member may adopt a reducing pipe 7, referring to fig. 5, an end portion of the steel member connected to the regular polygon steel pipe adopts a reducing structure, and a small diameter section connected to the connecting plate 3 through an equal strength girth weld and having a smaller diameter than a main body of the steel member is provided, the small diameter section is connected to the main body of the steel member through a variable diameter section, and both ends of the variable diameter section are connected to the small diameter section and the main body of the steel member through equal strength girth welds, respectively. The specific size of the reducing pipe 7, the strength of the welding seam and the like are determined according to calculation and construction requirements.
The number and arrangement of the stiffening ribs 5 in the regular polygonal steel pipe 2 can be determined according to specific engineering design. The number of sides of the regular polygonal steel pipe 2 is recommended to be at least 4.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (7)
1. The utility model provides a polygon steel pipe and steel member assembled connected node, its characterized in that, this node include an regular polygon steel pipe and a plurality of steel member rather than linking to each other be equipped with the stiffening rib in the regular polygon steel pipe each welding in the both ends of regular polygon steel pipe has a closure plate, every the one end of steel member through a connecting plate with a plane lateral wall of regular polygon steel pipe is connected, the connecting plate with regular polygon steel pipe adopts fixing bolt to connect, the steel member with the connecting plate adopts wait strong girth weld to connect.
2. The polygonal steel pipe and steel member fabricated connecting node according to claim 1, wherein the steel member is disposed diagonally to the connecting plate.
3. The polygonal steel pipe and steel member fabricated connecting node according to claim 1, wherein the steel member is orthogonally disposed to the connecting plate.
4. The polygonal steel pipe and steel member fabricated connecting node according to claim 1, wherein the end portion of the steel member connected with the regular polygonal steel pipe is of a reducing structure, and is provided with a small diameter section which is connected with the connecting plate through an equi-strength girth weld and has a smaller diameter than the main body of the steel member, the small diameter section is connected with the main body of the steel member through a variable diameter section, and two ends of the variable diameter section are respectively connected with the small diameter section and the main body of the steel member through equi-strength girth welds.
5. The polygonal steel pipe and steel member fabricated connecting node according to claim 1, wherein the steel member is any one of a circular steel pipe, a square steel pipe and a profile steel pipe.
6. The polygonal steel pipe and steel member fabricated connecting node according to claim 1, wherein the fixing bolt is a single-sided bolt.
7. The polygonal steel pipe and steel member fabricated connecting node according to claim 1, wherein the number of sides of the regular polygonal steel pipe is at least 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911244565.3A CN111005445A (en) | 2019-12-06 | 2019-12-06 | Assembled connected node between polygon steel pipe and steel member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911244565.3A CN111005445A (en) | 2019-12-06 | 2019-12-06 | Assembled connected node between polygon steel pipe and steel member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111005445A true CN111005445A (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911244565.3A Pending CN111005445A (en) | 2019-12-06 | 2019-12-06 | Assembled connected node between polygon steel pipe and steel member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111005445A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431303A (en) * | 2020-11-23 | 2021-03-02 | 东南大学 | Double-topology ring node applied to fabricated single-layer grid structure |
| CN115182451A (en) * | 2022-06-29 | 2022-10-14 | 东莞市建筑科学研究院有限公司 | Assembled node suitable for cavity intermediate layer steel pipe concrete component is connected |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3123482A1 (en) * | 1981-06-13 | 1982-12-30 | Josef 7100 Heilbronn Serwe | Joint connection for a three-dimensional framework |
| CN202023258U (en) * | 2011-03-30 | 2011-11-02 | 中国民航大学 | Bolt-sphere connecting node of bamboo structure |
| CN103510625A (en) * | 2013-01-23 | 2014-01-15 | 同济大学 | Top-bottom T-shaped steel type node for connecting H-shaped steel beam with rectangular tubular column through unilateral bolts |
| CN104420543A (en) * | 2013-08-31 | 2015-03-18 | 上海岑晨钢结构网架有限公司 | Joint drum structure for connecting steel structural part |
| CN105821963A (en) * | 2016-03-25 | 2016-08-03 | 东南大学 | Single-layer space lattice structure assembled double-ring node |
| CN211690749U (en) * | 2019-12-06 | 2020-10-16 | 天津大学 | Assembled connected node between polygon steel pipe and steel member |
-
2019
- 2019-12-06 CN CN201911244565.3A patent/CN111005445A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3123482A1 (en) * | 1981-06-13 | 1982-12-30 | Josef 7100 Heilbronn Serwe | Joint connection for a three-dimensional framework |
| CN202023258U (en) * | 2011-03-30 | 2011-11-02 | 中国民航大学 | Bolt-sphere connecting node of bamboo structure |
| CN103510625A (en) * | 2013-01-23 | 2014-01-15 | 同济大学 | Top-bottom T-shaped steel type node for connecting H-shaped steel beam with rectangular tubular column through unilateral bolts |
| CN104420543A (en) * | 2013-08-31 | 2015-03-18 | 上海岑晨钢结构网架有限公司 | Joint drum structure for connecting steel structural part |
| CN105821963A (en) * | 2016-03-25 | 2016-08-03 | 东南大学 | Single-layer space lattice structure assembled double-ring node |
| CN211690749U (en) * | 2019-12-06 | 2020-10-16 | 天津大学 | Assembled connected node between polygon steel pipe and steel member |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431303A (en) * | 2020-11-23 | 2021-03-02 | 东南大学 | Double-topology ring node applied to fabricated single-layer grid structure |
| CN115182451A (en) * | 2022-06-29 | 2022-10-14 | 东莞市建筑科学研究院有限公司 | Assembled node suitable for cavity intermediate layer steel pipe concrete component is connected |
| CN115182451B (en) * | 2022-06-29 | 2024-09-27 | 东莞市建筑科学研究院有限公司 | Assembled node suitable for hollow interlayer steel pipe concrete member connection |
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