CN117230890A - Rectangular tubular column outer hoop type connecting joint and processing technology - Google Patents
Rectangular tubular column outer hoop type connecting joint and processing technology Download PDFInfo
- Publication number
- CN117230890A CN117230890A CN202311374416.5A CN202311374416A CN117230890A CN 117230890 A CN117230890 A CN 117230890A CN 202311374416 A CN202311374416 A CN 202311374416A CN 117230890 A CN117230890 A CN 117230890A
- Authority
- CN
- China
- Prior art keywords
- outer hoop
- pipe column
- rectangular pipe
- connecting plate
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005516 engineering process Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 60
- 239000010959 steel Substances 0.000 claims abstract description 60
- 238000003466 welding Methods 0.000 claims abstract description 30
- 230000000149 penetrating effect Effects 0.000 claims abstract description 28
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- 230000035515 penetration Effects 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000005192 partition Methods 0.000 description 3
- 238000003698 laser cutting Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a rectangular pipe column outer hoop type connecting node and a processing technology, and relates to the technical field of building steel structures. The invention comprises a rectangular pipe column and a steel beam, wherein a plurality of outer hoop connecting plates are sleeved on the periphery of the rectangular pipe column; the outer hoop connecting plate is limited at a set position on the periphery of the rectangular pipe column through the penetrating plug-in, a plurality of first through holes are formed in the periphery of the rectangular pipe column, a second through hole is formed in the surface of the outer hoop connecting plate, and the penetrating plug-in is plugged with the first through holes and the second through holes; one end of the steel beam is welded and fixed with the peripheral side surface of the outer hoop connecting plate. According to the invention, the rectangular pipe column outer hoop type connecting node is designed, so that on one hand, the structural strength requirement is met, meanwhile, the breaking of the whole square pipe column in a plurality of sections is avoided, and the straightness of a component is ensured. On the other hand, the welding of the full penetration flaw detection weld joint of the rectangular pipe column and the through diaphragm plate is avoided, the full penetration is changed into the fillet weld joint of the outer hoop connecting plate, and the node is changed into the fillet weld joint from full penetration, so that the welding robot can participate in the welding, and the welding efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of building steel structures, and particularly relates to a rectangular pipe column outer hoop type connecting node and a processing technology of the rectangular pipe column outer hoop type connecting node.
Background
In the building engineering, a steel structure assembly type building is an important system, and a steel frame consisting of steel columns and steel beams in the steel structure assembly type building is a core part in the whole system. Referring to fig. 1, at present, when steel beams are rigidly connected to rectangular tubular columns, most of steel beams adopt a connecting node form of penetrating transverse partition plates. However, in actual production and construction, the following problems exist in such a connection node:
1. the connecting form breaks the whole rectangular square tube into a plurality of small sections, the connection of each small section and the diaphragm plate adopts full penetration groove welding, the factory welding difficulty is high, and the appearance quality of the finished steel column is poor.
2. The original whole square tube column needs to be broken into a plurality of sections, and the whole straightness is difficult to ensure during splicing;
3. if the inner partition plate nodes are not broken, the inner partition plate nodes cannot be added in the finished square pipe, and the structural stress requirement cannot be met;
4. the through type node has a plurality of full penetration butt joints, the welding robot can hardly realize the welding quality requirement, and the industry development requirement of intelligent manufacturing can not be met.
Disclosure of Invention
The invention aims to provide a rectangular pipe column outer hoop type connecting node, which is formed by sleeving a plurality of outer hoop connecting plates on the peripheral side of a rectangular pipe column; the outer hoop connecting plate is limited at the setting position of rectangular pipe column periphery through penetrating the plug-in components, has satisfied the structural strength requirement promptly, avoids whole square pipe column multistage to break simultaneously, the straightness accuracy of the component of assurance, has solved the current connected node form that adopts the diaphragm to link up, and the welding degree of difficulty is big, straightness accuracy is difficult to guarantee, and welding robot is difficult to participate in, intelligent degree low problem. The invention further aims to provide a processing technology of the rectangular pipe column outer hoop type connecting joint, each joint at least avoids four full penetration welds, a fillet weld plug welding mode is changed, structural stress can be met, and the problem of high welding difficulty is solved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a rectangular pipe column outer hoop type connecting node and a processing technology, comprising a rectangular pipe column and a steel beam, wherein a plurality of outer hoop connecting plates are sleeved on the periphery of the rectangular pipe column; the outer hoop connecting plate is limited at a set position on the periphery of the rectangular pipe column through a penetrating plug-in, a plurality of first through holes are formed in the periphery of the rectangular pipe column, a second through hole is formed in the surface of the outer hoop connecting plate, and the penetrating plug-in is plugged with the first through holes and the second through holes so as to prevent the outer hoop connecting plate from sliding relatively along the rectangular pipe column; one end of the steel beam is welded and fixed with the peripheral side face of the outer hoop connecting plate.
As a preferable technical scheme of the invention, two outer hoop connecting plates are adopted, the two outer hoop connecting plates are correspondingly arranged at the upper and lower flange edges of the steel beam, and the upper and lower flange edges of one end part of the steel beam are respectively welded and fixed with the two outer hoop connecting plates.
As a preferable technical scheme of the invention, the outer hoop connecting plate and the rectangular pipe column are welded and fixed, and two ends of the penetrating insert are welded and fixed with a second through hole on the outer hoop connecting plate.
As a preferable technical scheme of the invention, the outer hoop connecting plate comprises a pair of ring flange plates and a pair of ring webs, the ring flange plates and the ring webs are sequentially connected end to form a rectangular frame, and the second through hole is formed in the center of the surface of the ring flange plates.
As a preferable technical scheme of the invention, the penetrating insert adopts a steel plate, the steel plate is inserted into the first through hole and the second through hole along the horizontal direction, and the first through hole and the second through hole adopt rectangles matched with the steel plate.
As a preferable technical scheme of the invention, the penetrating insert adopts a plurality of round steel rods, the first through holes and the second through holes adopt circles matched with the round steel rods, and the first through holes and the second through holes are arranged along the horizontal direction.
As a preferable technical scheme of the invention, the steel girder steel column further comprises a web connecting plate, wherein one side of the web connecting plate is welded and fixed with the peripheral side of the rectangular pipe column, and one surface of the web connecting plate is in threaded connection with the steel girder.
A processing technology of a rectangular pipe column outer hoop type connecting node comprises the following steps: s1: the two opposite sides of the rectangular tubular column are provided with first through holes; s2: aligning the second through hole of the outer hoop connecting plate with the first through hole, and welding and fixing the outer hoop connecting plate with the rectangular tubular column; s3: inserting the penetrating insert into the first through hole and the second through hole, enabling the penetrating insert to extend to the second through hole, and welding and fixing two ends of the penetrating insert with the second through hole; s4: positioning a web plate connecting plate at a designated position of a rectangular pipe column, and welding and fixing one side of the web plate connecting plate with the periphery of the rectangular pipe column; s5: attaching a web plate of the steel beam to the surface of a web plate connecting plate, aligning bolt holes of the web plate connecting plate, and then screwing and fixing the steel beam and the web plate connecting plate by using bolts; s6: and respectively welding and fixing two sides of one end of the steel beam with the two outer hoop connecting plates.
As a preferable technical scheme of the invention, the outer hoop connecting plate and the rectangular pipe column are welded and fixed by using fillet welds. And one side of the web connecting plate and the peripheral side of the rectangular tubular column are welded and fixed by using fillet welds. And two sides of one end of the steel beam are respectively welded and fixed with the two outer hoop connecting plates by using fillet welds.
As a preferable technical scheme of the invention, two ends of the penetrating plug-in unit are fixed with the second through holes of the outer hoop connecting plate in a plug welding mode.
The invention has the following beneficial effects:
according to the invention, the plurality of outer hoop connecting plates are sleeved on the periphery of the rectangular pipe column, and the outer hoop connecting plates are limited at the set positions on the periphery of the rectangular pipe column through the penetrating plug-in, so that on one hand, the requirement of structural strength is met, meanwhile, the multi-section breaking of the whole square pipe column is avoided, and the straightness of a member is ensured. On the other hand, the welding of the full penetration flaw detection weld joint of the rectangular pipe column and the through diaphragm plate is avoided, the joint is changed from full penetration to fillet weld joint, so that the welding robot can participate in welding, the welding efficiency is improved, and the intelligent manufacturing industry development direction is met.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a connecting node penetrated by a diaphragm plate in the background art of the invention;
FIG. 2 is a schematic structural view of a rectangular pipe column outer hoop-type connection node in accordance with the first embodiment;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a side view of FIG. 1;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 6 is a front view of a node of an embodiment;
FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;
FIG. 8 is a cross-sectional view taken along line C-C of FIG. 6;
FIG. 9 is a schematic diagram of a processing technology of an outer hoop-type connection node of a rectangular pipe column in the first embodiment;
FIG. 10 is a schematic structural view of a rectangular pipe column outer hoop-type connection node in the second embodiment;
FIG. 11 is a top view of a node in a second embodiment;
in the drawings, the list of components represented by the various numbers is as follows:
the steel pipe comprises a 1-rectangular pipe column, a 101-first through hole, a 2-steel beam, a 3-outer hoop connecting plate, a 301-second through hole, a 302-annular flange plate, a 303-annular web, a 304-U-shaped plate, a 4-penetrating insert and a 5-web connecting plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Example 1
Referring to fig. 2-5, the present embodiment provides a rectangular pipe column outer hoop type connection node, which includes a rectangular pipe column 1 and a steel beam 2, wherein two outer hoop connection plates 3 are sleeved on the peripheral side of the rectangular pipe column 1. Two first through holes 101 are formed in the peripheral side of the rectangular pipe column 1 by using a laser cutting machine, a second through hole 301 is formed in the surface of the outer hoop connecting plate 3 by using the laser cutting machine, and the two outer hoop connecting plates 3 are respectively sleeved at the first through holes 101 in the peripheral side of the rectangular pipe column 1, and the first through holes 101 are aligned with the second through holes 301. Referring to fig. 6-8, the outer hoop connecting plate 3 includes a pair of ring flange plates 302 and a pair of ring webs 303, the ring flange plates 302 and the ring webs 303 are sequentially connected end to form a rectangular frame, and the second through hole 301 is formed in the center of the surface of the ring flange plate 302. The through-plug 4 is then plugged into both the first through-hole 101 and the second through-hole 301. Among them, the penetration insert 4 preferably employs a Q355B steel plate, the steel plate is inserted into the first through hole 101 and the second through hole 301 in the horizontal direction, and the first through hole 101 and the second through hole 301 employ a rectangular shape adapted to the steel plate.
In the embodiment, the rectangular pipe column 1 can be a finished square pipe, and the wall thickness of the rectangular pipe column is thicker; prefabricated square tubes which are processed independently can also be adopted, and the wall thickness of the prefabricated square tubes is thinner. Both use the node structure mentioned in this embodiment.
The steel beam 2 comprises a web plate and flange plates fixed on two sides of the web plate, and two outer hoop connecting plates 3 are correspondingly arranged at the joints of the web plates and the flange plates on two sides of the end part of the steel beam 2. In addition, the connection node has still set up web connecting plate 5, and one side of web connecting plate 5 is fixed with the week side welding of rectangle tubular column 1, and the surface of web connecting plate 5 passes through the bolt fastening with the web surface of girder steel 2 to increase the joint strength of node.
The embodiment also provides a processing technology of the rectangular pipe column outer hoop type connecting node, referring to fig. 9, comprising the following steps:
s1: a first through hole 101 is opened at opposite sides of the rectangular pipe string 1 using a laser cutter.
S2: fixing the outer hoop connecting plate 3: firstly, the central lines of the annular webs 303 on two sides are aligned with the central line of the rectangular pipe column 1, and notice that the two ends of the annular webs 303 cannot extend out of the edge of the rectangular pipe column 1, and the upper edge and the lower edge of the rectangular pipe column 1 are welded and fixed with the fillet weld of the wall of the rectangular pipe column 1 after adjustment; the center lines of the second through holes 301 of the two side ring flange plates 302 are aligned with the center line of the first through hole 101 of the wall plate of the rectangular pipe column 1, the two ends of the ring flange plates 302 and the two ends of the ring web 303 are welded and fixed, and the upper edge and the lower edge of the ring flange plates 302 are welded and fixed with the corner weld of the wall of the rectangular pipe column 1.
S3: fitting through insert 4: in order to facilitate the assembly of the penetrating insert 4, the first through holes 101 on two sides of the rectangular pipe column 1 can be vertically placed, the penetrating insert 4 is vertically inserted into the first through holes 101 and the second through holes 301, two ends of the penetrating insert 4 extend to the second through holes 301, two ends of the penetrating insert 4 are fixed with the second through holes 301 of the outer hoop connecting plate 3 in plug welding mode, so that the outer hoop connecting plate 3 is prevented from sliding relatively along the rectangular pipe column 1, and bending moment of the flange of the steel beam 2 is transmitted to the rectangular pipe column 1 or to the opposite steel beam 2.
S4: web connection plate 5 assembly: the web connection plate 5 should ensure that the center line of the web connection plate 5 is aligned with the center line of the frame beam marked on the wall plate of the rectangular pipe column 1 in the vertical direction. The distance between the connecting surface of the web connecting plate 5 and the central line of the rectangular pipe column 1 is 1/2 of the thickness of the web of the steel beam 2. After the dimension inspection is correct, the web connecting plate 5 is welded and fixed with the fillet weld of the rectangular pipe column 1.
S5: the web of the steel beam 2 is attached to the surface of the web connecting plate 5 so that bolt holes thereof are aligned, and then the steel beam 2 and the web connecting plate 5 are screwed and fixed using bolts.
S6: and respectively welding and fixing the joints of the webs on the two sides of the end part of the steel beam 2 and the flange plate with fillet welds of the outer hoop connecting plate 3.
Example two
Based on the first embodiment, the second embodiment is different in that:
referring to fig. 10 and 11, in some possible embodiments, five round steel rods are used as the penetrating insert 4, round holes adapted to the round steel rods are used as the first through holes 101 and the second through holes 301, and the five first through holes 101 and the second through holes 301 are arranged in a horizontal direction, so as to achieve the same effect as the steel plate in the first embodiment.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (10)
1. The rectangular pipe column outer hoop type connecting node is characterized by comprising a rectangular pipe column (1) and a steel beam (2), wherein a plurality of outer hoop connecting plates (3) are sleeved on the periphery of the rectangular pipe column (1);
the outer hoop connecting plate (3) is limited on the periphery of the rectangular pipe column (1) through the penetrating plug-in unit (4), a plurality of first through holes (101) are formed in the periphery of the rectangular pipe column (1), a second through hole (301) is formed in the surface of the outer hoop connecting plate (3), and the penetrating plug-in unit (4) is plugged with the first through hole (101) and the second through hole (301) so as to prevent the outer hoop connecting plate (3) from sliding relatively along the rectangular pipe column (1);
one end of the steel beam (2) is welded and fixed with the peripheral side surface of the outer hoop connecting plate.
2. The rectangular pipe column outer hoop type connecting node according to claim 1, wherein two outer hoop connecting plates (3) are adopted, the two outer hoop connecting plates (3) are correspondingly arranged at the upper flange and the lower flange of the steel beam (2), and the upper flange and the lower flange of one end of the steel beam (2) are respectively welded and fixed with the two outer hoop connecting plates (3).
3. The rectangular pipe column outer hoop type connecting node according to claim 2, wherein the outer hoop connecting plate (3) is welded and fixed with the rectangular pipe column (1), and two ends of the penetrating insert (4) are welded and fixed with a second through hole (301) on the outer hoop connecting plate (3).
4. A rectangular pipe column outer hoop type connecting node according to claim 3, wherein the outer hoop connecting plate (3) comprises a pair of ring flange plates (302) and a pair of ring webs (303), the ring flange plates (302) and the ring webs (303) are sequentially connected end to form a rectangular frame, and the second through hole (301) is formed in the center of the surface of the ring flange plates (302).
5. The rectangular pipe column outer hoop type connecting node according to claim 4, wherein the penetrating insert (4) is made of a steel plate, the steel plate is inserted into the first through hole (101) and the second through hole (301) along the horizontal direction, and the first through hole (101) and the second through hole (301) are made of rectangles matched with the steel plate.
6. The rectangular pipe column outer hoop type connecting node according to claim 4, wherein the penetrating insert (4) adopts a plurality of round steel rods, the first through holes (101) and the second through holes (301) adopt circles matched with the round steel rods, and the plurality of first through holes (101) and the plurality of second through holes (301) are arranged in a horizontal direction.
7. A rectangular pipe column outer hoop type connecting node according to any one of claims 1-6, further comprising a web connecting plate (5), wherein one side of the web connecting plate (5) is welded and fixed with the peripheral side of the rectangular pipe column (1), and one surface of the web connecting plate (5) is in threaded connection with the steel beam (2).
8. A process for manufacturing the rectangular pipe column outer hoop-type connecting joint as claimed in any one of claims 1 to 7, comprising the steps of:
s1: the two opposite sides of the rectangular tubular column (1) are provided with first through holes (101);
s2: aligning the second through hole (301) of the outer hoop connecting plate (3) with the first through hole (101), and welding and fixing the outer hoop connecting plate (3) with the rectangular tubular column (1);
s3: inserting the penetrating insert (4) into the first through hole (101) and the second through hole (301), enabling the penetrating insert (4) to extend to the second through hole (301), and welding and fixing two ends of the penetrating insert (4) with the second through hole (301);
s4: positioning a web connecting plate (5) at a designated position of the rectangular pipe column (1), and welding and fixing one side of the web connecting plate (5) with the periphery of the rectangular pipe column (1);
s5: attaching a web plate of the steel beam (2) to the surface of the web plate connecting plate (5) to align bolt holes of the web plate connecting plate, and then screwing and fixing the steel beam (2) and the web plate connecting plate (5) by using bolts;
s6: and respectively welding and fixing two side parts of one end of the steel beam (2) with the two outer hoop connecting plates (3).
9. The processing technology of the rectangular pipe column outer hoop connecting node according to claim 8, wherein fillet welding and fixing are used between the outer hoop connecting plate (3) and the rectangular pipe column (1);
one side of the web connecting plate (5) and the peripheral side of the rectangular tubular column (1) are welded and fixed by using fillet welds;
and two side parts of one end of the steel beam (2) are respectively welded and fixed with the two outer hoop connecting plates (3) by using fillet welds.
10. The processing technology of the rectangular pipe column outer hoop type connecting node according to claim 9, wherein the two ends of the penetrating insert (4) are fixed with the second through hole (301) of the outer hoop connecting plate (3) in a plug welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311374416.5A CN117230890A (en) | 2023-10-23 | 2023-10-23 | Rectangular tubular column outer hoop type connecting joint and processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311374416.5A CN117230890A (en) | 2023-10-23 | 2023-10-23 | Rectangular tubular column outer hoop type connecting joint and processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117230890A true CN117230890A (en) | 2023-12-15 |
Family
ID=89091247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311374416.5A Pending CN117230890A (en) | 2023-10-23 | 2023-10-23 | Rectangular tubular column outer hoop type connecting joint and processing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117230890A (en) |
-
2023
- 2023-10-23 CN CN202311374416.5A patent/CN117230890A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106638958A (en) | Assembling type embedded beam-column joint structure | |
| CN109339250B (en) | Node reinforced spliced steel pipe concrete connection structure and construction method thereof | |
| JP2004027655A (en) | Column-beam joint part intersecting method for building steel structure | |
| CN208293763U (en) | The board-like beam-to-column joint device of outer ring | |
| CN211257306U (en) | Wedge-shaped clamping groove connection assembly type steel frame beam column joint | |
| JP2000110236A (en) | Hardware for joining beam flange, structure and execution method for column-beam joining part using it | |
| US3628300A (en) | Joint between h-shaped members and method for producing the joint | |
| CN214657807U (en) | Assembled web-penetrating type steel pipe concrete column and steel beam connecting joint | |
| CN111962672B (en) | Wood structure connecting joint for relieving stress concentration and construction method thereof | |
| CN117230890A (en) | Rectangular tubular column outer hoop type connecting joint and processing technology | |
| JP5237401B2 (en) | Welding method for H-section steel | |
| CN113668703B (en) | Direct-insertion type bolt-free connecting joint of closed cavity column and steel beam with three-layer ring plate structure | |
| CN114622647A (en) | Inner sleeve type beam-column full-bolt connecting node and rapid assembling method thereof | |
| CN113565207B (en) | Assembly type beam-column joint structure and construction method | |
| CN220550684U (en) | Rectangular pipe column and H-shaped steel beam connecting node | |
| JP2000096707A (en) | Connection method of steel pipe column and steel frame beam, and diaphragm therefor | |
| CN111335484B (en) | Beam column connection node structure | |
| CN219298475U (en) | H-shaped Liang Yuzhu rigid connection node | |
| CN215948501U (en) | Cylindrical head structure at multi-node intersection part of building section steel frame | |
| CN114622657B (en) | Steel-wood combined connection system based on sleeve connection | |
| CN114753510B (en) | Steel-wood combined connection node based on sleeve connection | |
| CN219060329U (en) | Beam column node of assembled steel structure building | |
| CN216865465U (en) | Screw rod end plate type beam column joint structure | |
| CN219327181U (en) | Round steel pipe concrete column and H-shaped steel beam end plate bolt assembly type node structure | |
| CN220953906U (en) | Prefabricated assembled steel reinforced concrete column Liang Liu is to dark socket joint connection structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |