CN114411981A - Box assembled square steel pipe frame construction's bolted connection node - Google Patents
Box assembled square steel pipe frame construction's bolted connection node Download PDFInfo
- Publication number
- CN114411981A CN114411981A CN202210254397.1A CN202210254397A CN114411981A CN 114411981 A CN114411981 A CN 114411981A CN 202210254397 A CN202210254397 A CN 202210254397A CN 114411981 A CN114411981 A CN 114411981A
- Authority
- CN
- China
- Prior art keywords
- node
- square steel
- vertical direction
- type
- bolt
- 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.)
- Granted
Links
Images
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
- E04B1/38—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
- E04B1/5831—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially rectangular form
-
- 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
-
- 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
-
- 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
- E04B2001/2451—Connections between closed section profiles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a bolt connecting node of a box-type assembly type square steel tube frame structure, which comprises a transverse node plate, wherein 8 node plates are respectively welded in the vertical direction from top to bottom, and bolt holes of two sizes are arranged on the node plates; the gusset plate of vertical direction is connected through W type stiffening rib, and the position of W type stiffening rib than the bolt hole is slightly lower a bit in vertical direction, and W type stiffening rib can increase the rigidity of node and improve the overall stability of node, can connect into the bigger whole of rigidity with 8 square steel pipe frame simultaneously through this kind of nodal connection mode. The bolt connection node has the characteristics of convenience in construction, high overall rigidity after connection, high overall stability and the like, and provides technical support for the construction of the fabricated frame building.
Description
Technical Field
The invention relates to a bolt connecting node of a box-type assembled square steel pipe frame module, which can be used for connecting assembled dwelling house integrated modules of a multi-story and high-rise stacked box system.
Background
The fabricated steel structure building has the characteristics of standardized design, industrialized production, integration of assembly construction and decoration, informationization of management and the like, and has the advantages of short construction period, simplicity in construction, light dead weight, environmental friendliness and the like. The node connection in the assembly type building is vital, and the stability and the safety of the whole assembly type building can be directly influenced. Meanwhile, the construction form of the node also directly influences the construction progress and the construction cost of the steel structure. The construction method has the advantages that the construction can be conveniently and quickly carried out by selecting a proper node construction form, and more importantly, the stability of the building can be guaranteed. But the construction is convenient and fast, the cost is low, the stability of the structure is facilitated, the rigidity of the structure can be increased, and the like, and the construction method is a relatively troublesome problem. Therefore, based on the current research on the connection of the assembled steel structure building nodes, the research on the connection of the assembled steel structure nodes should be further deepened.
The current research results on the connection node of the assembly type square steel tube frame structure show that the appropriate node structure can meet the following requirements:
1. the cost is reduced as much as possible;
2. the construction is convenient and fast, and the construction period is favorably shortened;
3. the rigidity of the structure is increased as much as possible, and greater stability is provided for the building.
In general, the rigidity of the node can be increased by using the W-shaped stiffening rib, so that the rigidity and the integrity of the connected structure are increased, and the overall performance of the building is greatly improved. Meanwhile, the inner side blind hole bolt can enter the inner side through the bolt hole on the outer side by utilizing the different sizes of the inner side outer bolt hole to complete the installation of the inner side bolt. If the inner blind hole bolt slips carelessly during installation, the W-shaped stiffening rib can also play a role in receiving the slipping bolt. The design can make the construction simpler and more convenient, and is favorable for accelerating the construction speed.
Disclosure of Invention
The invention aims to provide a simple and feasible bolt connection node of a box type assembly type square steel pipe frame capable of enhancing structural integrity. By utilizing the bolt connecting node, the integral rigidity of the node can be increased, so that the structural rigidity and integrity after connection are enhanced, and the integral performance of a building is greatly improved. Meanwhile, the inner side blind hole bolt can enter the inner side through the bolt hole on the outer side by utilizing the different sizes of the inner side outer bolt hole to complete the installation of the inner side bolt. If the inner blind hole bolt slips carelessly during installation, the W-shaped stiffening rib can also play a role in catching the slipping bolt, so that construction is simpler and more convenient, and the construction speed is accelerated.
The purpose of the invention is realized by the following technical scheme.
According to one embodiment provided by the invention, the invention provides a bolt connecting node of a box-type assembly type square steel tube frame, which comprises a transverse node plate, wherein 8 node plates are welded in the vertical direction of the transverse node plate respectively, and bolt holes of two sizes and types are arranged on the node plates; the gusset plates in the vertical direction are connected through the W-shaped stiffening ribs, so that the node has higher overall stability, and 8 square steel pipe frames can be connected into a whole with higher rigidity by the connection mode of the node.
S1: 8 vertical gusset plates are respectively welded on the upper and lower vertical directions of one transverse gusset plate, wherein 4 upper and lower gusset plates in the vertical direction are respectively positioned on the outer sides of the transverse gusset plates, and 4 gusset plates are respectively positioned on the inner sides of the transverse gusset plates;
s2: each gusset plate positioned on the outer side in the vertical direction is provided with 4 large bolt holes, and each gusset plate positioned on the inner side in the vertical direction is provided with 4 small bolt holes;
s3: the W-shaped stiffening ribs are connected with the gusset plates on the outer side and the inner side in the vertical direction and are connected by two W-shaped stiffening ribs;
s4: the W-shaped stiffening rib is slightly lower than the bolt hole in the vertical direction;
s5: and a certain distance is reserved between the node plates positioned on the inner side.
The invention is characterized in that:
the bolt connection node fully utilizes the advantages of the W-shaped stiffening ribs to strengthen the connection of the inner side gusset plate and the outer side gusset plate, thereby increasing the rigidity of the node, and greatly strengthening the rigidity and the integrity of the whole structure after 8 square steel pipe frames are connected by the bolt connection node. Therefore, the overall performance of the steel structure building is optimized.
The difference of the sizes of the bolt holes of the inner side node plate and the outer side node plate can be utilized to send smaller bolts into the bolt holes of the inner side node plate through larger bolt holes to complete installation, and the design can obviously improve the construction speed, so that the node connection is simpler and more convenient.
Ordinary bolts need to be screwed down, construction and installation time is increased due to blocking of certain components, and the bolts used in the design are all blind hole bolts and do not need to be screwed down, so that the construction time is saved.
The W-shaped stiffening rib is slightly lower than the position of the bolt hole in the vertical direction. If the bolt slips in the process from the larger bolt hole to the smaller bolt hole, the bolt can be supported by the W-shaped stiffening rib, and the construction speed can be improved by the characteristic.
Drawings
FIG. 1 is a schematic view of a box-type fabricated square steel tube frame according to the present invention;
FIG. 2 is a schematic view of a bolted joint of the box-type fabricated square steel tube frame of the present invention;
FIG. 3 is a schematic view of the installation of the bolted joint of the box-type fabricated square steel tube frame of the present invention;
FIG. 4 is a schematic top view of a bolted joint of the box-type fabricated square steel tube frame of the present invention;
in the figure: 1. a box-type square steel tube frame; 2. connecting the nodes by bolts; w-shaped stiffening ribs; 4. a vertical gusset plate; 5. a transverse gusset plate; 6. an inner bolt hole; 7. an outer bolt hole; 8. an inner blind hole bolt; 9. an outer blind hole bolt; 10. a square steel tubular beam; 11. a square steel tubular beam; 12. a square steel pipe column.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example (b):
a bolt connecting node of a box-type assembly type square steel tube frame module comprises the following steps:
s1: as shown in fig. 1, a box-type square steel pipe frame 1 needs to be assembled with other 7 box-type square steel pipe frames through bolt connecting nodes 2;
s2: as shown in fig. 2, 8 vertical gusset plates 4 are welded on one transverse gusset plate 5 in the vertical direction, 4 large bolt holes 6 are formed in the vertical gusset plate positioned on the outer side of the transverse gusset plate, 4 small bolt holes 7 are formed in the vertical gusset plate positioned on the inner side of the transverse gusset plate, and the W-shaped stiffening rib 3 is connected with the inner and outer gusset plates and is slightly lower than the bolt holes in the vertical direction;
s3: as shown in fig. 2, the square steel tubular beams 10 and 11 and the square steel tubular columns 12 constitute the four box-type assembled square steel tubular frames, and the inner blind bolts 8 are used to connect the two box-type assembled square steel tubular frame columns. The outer blind hole bolt 9 is used for connecting the box-type assembly type square steel tube frame column and the gusset plate;
s4: fig. 4 shows a top view of the bolted joint after installation is complete. The inner side is provided with blind bolts 8, and the outer side is provided with blind bolts 9.
The concrete implementation of this bolted connection node is, the inboard and outboard gusset plates that form with W type stiffening rib connection cover with the square steel tubular column, place 4 box assembled square steel tubular frames in bolted connection node with this mode in, then send the less blind hole bolt to inboard bolt hole through the big bolt hole in the outside after with inboard blind hole bolt come to connect two box assembled square steel tubular frame posts to on same gusset plate with inboard blind hole bolt, then connect outside gusset plate and box assembled square steel tubular frame post with outside blind hole bolt. And then, sequentially placing the rest 4 box-type assembly type square steel pipe frames above the 4 box-type assembly type square steel pipe frames which are installed in the previous step, sending the smaller blind hole bolts to the inner side bolt holes through the outer side large bolt holes to complete installation of the inner side blind hole bolts, and then completing installation of the outer side blind hole bolts. Thus, 8 box-type assembled square steel pipe frames are assembled into a whole.
The principle of the invention is that the connection of the inner and outer vertical gusset plates is reinforced by utilizing the advantages of the W-shaped stiffening ribs, so that the rigidity of the gusset points can be increased, and the rigidity and the integrity of the whole structure are greatly enhanced after 8 square steel pipe frames are connected by using the bolt connecting gusset points. Therefore, the overall performance of the steel structure building is optimized and enhanced. The difference of the sizes of the bolt holes of the inner side node plate and the outer side node plate can be utilized to send smaller bolts into the bolt holes of the inner side node plate through larger bolt holes to complete installation, and the design can obviously improve the construction speed, so that the node connection is simpler and more convenient. If the bolt slides in the process from the larger bolt hole to the smaller bolt hole, the bolt can be received by the W-shaped stiffening rib, so that the installation is more convenient and quicker.
Although the present invention has been described with reference to the above embodiments, it should be understood that the present invention is not limited to the above embodiments, and those skilled in the art can make various changes and modifications without departing from the scope of the present invention.
Claims (6)
1. A bolt connecting node of a box-type assembly type square steel tube frame structure comprises a transverse node plate, 8 node plates are welded in the vertical direction of the upper portion and the lower portion of the transverse node plate respectively, and bolt holes of two sizes are formed in the node plates; the gusset plate of vertical direction is connected through W type stiffening rib, and the position of W type stiffening rib than the bolt hole is slightly lower a bit in vertical direction, and W type stiffening rib can increase the rigidity of node and improve the overall stability of node, can connect into the bigger whole of rigidity with 8 square steel pipe frame simultaneously through this kind of nodal connection mode.
2. A bolted joint of a box-type fabricated square steel tube frame as claimed in claim 1, wherein: 8 gusset plates in the vertical direction are respectively welded in the vertical direction of the horizontal gusset plate, wherein 4 gusset plates in the vertical direction are respectively positioned on the outer side of the horizontal gusset plate, and 4 gusset plates are positioned on the inner side of the horizontal gusset plate.
3. A bolted joint of a box-type fabricated square steel tube frame as claimed in claim 1, wherein: every gusset plate that is located the vertical direction in the outside is provided with 4 great bolt holes, and every gusset plate that is located the vertical direction in the inboard is provided with 4 less bolt holes.
4. A bolted joint of a box-type fabricated square steel tube frame as claimed in claim 1, wherein: the W-shaped stiffening ribs are connected with the gusset plates on the outer side and the inner side in the vertical direction and are connected by two W-shaped stiffening ribs.
5. A bolted joint of a box-type fabricated square steel tube frame as claimed in claim 4, wherein: the W-shaped stiffening rib is slightly lower than the bolt hole in the vertical direction.
6. A bolted joint of a box-type fabricated square steel tube frame as claimed in claim 2, wherein: and a certain distance is reserved between the node plates positioned on the inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210254397.1A CN114411981B (en) | 2022-03-15 | 2022-03-15 | Bolt connection node of box assembly type square steel pipe frame structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210254397.1A CN114411981B (en) | 2022-03-15 | 2022-03-15 | Bolt connection node of box assembly type square steel pipe frame structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114411981A true CN114411981A (en) | 2022-04-29 |
| CN114411981B CN114411981B (en) | 2023-08-25 |
Family
ID=81262982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210254397.1A Active CN114411981B (en) | 2022-03-15 | 2022-03-15 | Bolt connection node of box assembly type square steel pipe frame structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114411981B (en) |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104328839A (en) * | 2014-08-11 | 2015-02-04 | 美国国绿投资集团 | Connecting structure for column bearing integrated building modules |
| CN104775517A (en) * | 2015-03-27 | 2015-07-15 | 天津大学 | Connecting node for steel frame and steel structure module |
| CN206110361U (en) * | 2016-09-13 | 2017-04-19 | 天津大学 | Be applied to compound cross -shaped plate formula connected node structure of modularization building |
| CN206128309U (en) * | 2016-09-13 | 2017-04-26 | 天津大学 | Modularization building bolt crossplate hybrid connection node structure |
| CN106948483A (en) * | 2017-04-29 | 2017-07-14 | 天津大学 | A kind of connecting node applied to modularization steel building |
| CN106988433A (en) * | 2017-04-29 | 2017-07-28 | 天津大学 | A kind of modular containers build connecting node |
| CN111456235A (en) * | 2020-04-17 | 2020-07-28 | 沈阳建筑大学 | Bolt connection joint of square steel tube concrete column-steel beam outer ring casing plate |
| CN111636561A (en) * | 2020-04-27 | 2020-09-08 | 北京交通大学 | Plug-in type modular steel structure connecting node with reset function |
| CN112112272A (en) * | 2020-10-21 | 2020-12-22 | 西南科技大学 | Full-assembly type square steel pipe beam column connecting node and construction method |
| CN112160419A (en) * | 2020-09-18 | 2021-01-01 | 北京工业大学 | Assembled beam column connected node based on anti special-shaped post of side of buckled plate |
| CN112376693A (en) * | 2020-11-05 | 2021-02-19 | 海南大学 | Angle piece shroud ring type light steel structure connecting joint |
| CN112982663A (en) * | 2021-02-25 | 2021-06-18 | 西安建筑科技大学 | Plug-in type modularized steel structure seismic isolation and reduction connecting node |
| CN112982661A (en) * | 2021-02-25 | 2021-06-18 | 西安建筑科技大学 | Plug-in type modular steel structure connecting joint and construction method thereof |
| US11098476B2 (en) * | 2017-09-22 | 2021-08-24 | Gaurian Corporation | Connecting core for column-beam joint and connection method using the same |
| CN113309240A (en) * | 2021-06-10 | 2021-08-27 | 同济大学 | Grouting sleeve connecting joint with annular shear keys |
| WO2022057643A1 (en) * | 2020-09-18 | 2022-03-24 | 北京工业大学 | Assembly-type beam-column connection joint based on corrugated plate lateral-resistant special-shaped column |
| CN218148945U (en) * | 2022-10-21 | 2022-12-27 | 上海中森建筑与工程设计顾问有限公司 | Steel structure connecting structure for assembly type building |
| CN218757940U (en) * | 2022-12-02 | 2023-03-28 | 天津城建大学 | Multilayer modular building node coupling assembling |
| JP2023062776A (en) * | 2021-10-22 | 2023-05-09 | 幹夫 田代 | Coupling joint structure of square steel pipe column |
-
2022
- 2022-03-15 CN CN202210254397.1A patent/CN114411981B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104328839A (en) * | 2014-08-11 | 2015-02-04 | 美国国绿投资集团 | Connecting structure for column bearing integrated building modules |
| CN104775517A (en) * | 2015-03-27 | 2015-07-15 | 天津大学 | Connecting node for steel frame and steel structure module |
| CN206110361U (en) * | 2016-09-13 | 2017-04-19 | 天津大学 | Be applied to compound cross -shaped plate formula connected node structure of modularization building |
| CN206128309U (en) * | 2016-09-13 | 2017-04-26 | 天津大学 | Modularization building bolt crossplate hybrid connection node structure |
| CN106948483A (en) * | 2017-04-29 | 2017-07-14 | 天津大学 | A kind of connecting node applied to modularization steel building |
| CN106988433A (en) * | 2017-04-29 | 2017-07-28 | 天津大学 | A kind of modular containers build connecting node |
| US11098476B2 (en) * | 2017-09-22 | 2021-08-24 | Gaurian Corporation | Connecting core for column-beam joint and connection method using the same |
| CN111456235A (en) * | 2020-04-17 | 2020-07-28 | 沈阳建筑大学 | Bolt connection joint of square steel tube concrete column-steel beam outer ring casing plate |
| CN111636561A (en) * | 2020-04-27 | 2020-09-08 | 北京交通大学 | Plug-in type modular steel structure connecting node with reset function |
| CN112160419A (en) * | 2020-09-18 | 2021-01-01 | 北京工业大学 | Assembled beam column connected node based on anti special-shaped post of side of buckled plate |
| WO2022057643A1 (en) * | 2020-09-18 | 2022-03-24 | 北京工业大学 | Assembly-type beam-column connection joint based on corrugated plate lateral-resistant special-shaped column |
| CN112112272A (en) * | 2020-10-21 | 2020-12-22 | 西南科技大学 | Full-assembly type square steel pipe beam column connecting node and construction method |
| CN112376693A (en) * | 2020-11-05 | 2021-02-19 | 海南大学 | Angle piece shroud ring type light steel structure connecting joint |
| CN112982661A (en) * | 2021-02-25 | 2021-06-18 | 西安建筑科技大学 | Plug-in type modular steel structure connecting joint and construction method thereof |
| CN112982663A (en) * | 2021-02-25 | 2021-06-18 | 西安建筑科技大学 | Plug-in type modularized steel structure seismic isolation and reduction connecting node |
| CN113309240A (en) * | 2021-06-10 | 2021-08-27 | 同济大学 | Grouting sleeve connecting joint with annular shear keys |
| JP2023062776A (en) * | 2021-10-22 | 2023-05-09 | 幹夫 田代 | Coupling joint structure of square steel pipe column |
| CN218148945U (en) * | 2022-10-21 | 2022-12-27 | 上海中森建筑与工程设计顾问有限公司 | Steel structure connecting structure for assembly type building |
| CN218757940U (en) * | 2022-12-02 | 2023-03-28 | 天津城建大学 | Multilayer modular building node coupling assembling |
Non-Patent Citations (1)
| Title |
|---|
| 陈志华;闫翔宇;王亨;: "方钢管混凝土柱新型节点和异形柱在住宅钢结构中的应用", 钢结构, no. 01, pages 18 - 20 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114411981B (en) | 2023-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109695295B (en) | Column-beam assembly type integrated variable beam height node and construction method thereof | |
| CN104988989B (en) | Movable building structure and making method thereof | |
| CN106013441A (en) | Connecting casing with steel structure | |
| CN111042328A (en) | Distributed modular anti-side K-support type unit multi-layer frame structure | |
| CN108915083B (en) | Novel assembled cold-formed thick wall shaped steel frame-bearing structure system | |
| CN110468994A (en) | A kind of assembled cold-rolled forming section wall-plate-column shock absorbing structural system with plate mild steel damper | |
| CN114411981A (en) | Box assembled square steel pipe frame construction's bolted connection node | |
| CN210529506U (en) | A bridging for bridge hunch stand | |
| CN218346250U (en) | Connecting structure of crossbeam-free high-penetrating V-shaped column joint | |
| CN214833403U (en) | Steel pipe concrete special-shaped column connection node structure for building engineering | |
| CN215926273U (en) | Prefabricated frame concrete structure connected node | |
| CN213869143U (en) | Cooling tower | |
| CN113309239B (en) | Grouting sleeve connection node with T-shaped shear keys | |
| CN213358935U (en) | Assembled beam column node structure | |
| CN213741599U (en) | Large-span factory building steel frame | |
| CN212358587U (en) | Assembled concrete frame structure beam column with connected node | |
| CN210529959U (en) | Column-beam connecting unit | |
| CN203066239U (en) | Multi-storey moving combined building | |
| CN111749368A (en) | Assembly type cascade support anti-side system and operation method thereof | |
| CN218091262U (en) | Fabricated structural system | |
| CN218991060U (en) | Container formula ward structure of easily building fast | |
| CN215407309U (en) | Welding platform structure for erecting steel pipe support frame | |
| CN221236180U (en) | Load-bearing structure of assembled building element | |
| CN220122809U (en) | Assembled photovoltaic device | |
| CN215211577U (en) | Beam column node structure easy to build |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |