CN106193333A - Steel pipe built-in bolt connecting device structure and assemble method - Google Patents
Steel pipe built-in bolt connecting device structure and assemble method Download PDFInfo
- Publication number
- CN106193333A CN106193333A CN201610844084.6A CN201610844084A CN106193333A CN 106193333 A CN106193333 A CN 106193333A CN 201610844084 A CN201610844084 A CN 201610844084A CN 106193333 A CN106193333 A CN 106193333A
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- Prior art keywords
- steel plate
- outsourcing
- doughnut
- plate
- steel
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Classifications
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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
-
- 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
- E04B2001/5875—Connections for building structures in general of bar-shaped building elements using exterior clamping plates or shells
-
- 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
- E04B2001/5887—Connections for building structures in general of bar-shaped building elements using connectors with sockets
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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)
Abstract
The present invention relates to steel building field, be specially a kind of steel pipe built-in bolt connecting device structure and assemble method, the built-in bolt connecting device of production can be used for joint steel pipe structure in steel building.This structure includes: common steel tube, single hole round plate, Round Porous steel plate, band Tenon groove steel plate, steel plate Tenon groove, outsourcing doughnut-shaped steel plate, outsourcing doughnut-shaped steel plate Tenon key, outsourcing doughnut-shaped steel plate Tenon groove, bolt, nut.Comparing conventional steel connected mode, the joint steel pipe device of the present invention can be prefabricated in the factory, when constructing at the scene, it is not required to welding, connecting structure is simple, and less demanding to workmen's technical merit, site operation difficulty is little, construction quality is easily guaranteed that, and connecting elements can repeated multiple times utilize, environmental protection and energy saving, better meet the requirement of green building instantly, realize being firmly connected between steel pipe with steel pipe, meet actual requirement of engineering.
Description
Technical field
The present invention relates to steel building field, be specially a kind of steel pipe built-in bolt connecting device structure and assembling side
Method, the built-in bolt connecting device of production can be used for joint steel pipe structure in steel building.
Background technology
Steel building has the advantages such as high-strength light, anti-seismic performance are good, becomes the important development of the present age and future architecture
One of direction.In steel construction, due to factors such as transport and liftings, the length of steel pipe is restricted, and inevitably there is steel
The connection of pipe.Traditional fastener for connection, mainly uses solder design, there is junction welding residual stress big, and site operation is difficult
Degree is big, construction quality it is difficult to ensure that etc. shortcoming, also have flange plate type to connect, i.e. welding flange at fastener for connection, then lead to
Cross bolted flange dish, but this kind of connected mode, and because ring flange leaks outside in steel pipe, it is attractive in appearance that impact connects, and ties at steel
In structure especially glass curtain wall and steel structure, application is very limited.It is therefore proposed that steel pipe built-in bolt connecting device structure and assembling
Method, with the needs facilitating actual engineering design to construct, promotes the more preferable development of steel building.
Summary of the invention
It is an object of the invention to provide a kind of steel pipe built-in bolt connecting device structure and assemble method, it is achieved steel pipe with
Firm connection between steel pipe, meets actual requirement of engineering.
The technical scheme is that
A kind of steel pipe built-in bolt connecting device structure, this structure includes: common steel tube, single hole round plate, porous round steel
Plate, band Tenon groove steel plate, steel plate Tenon groove, outsourcing doughnut-shaped steel plate, outsourcing doughnut-shaped steel plate Tenon key, outsourcing doughnut-shaped steel plate tenon
Fourth of the twelve Earthly Branches groove, bolt, nut, concrete structure is as follows:
Steel plate Tenon groove is opened in one side with Tenon groove steel plate, and two end faces of band Tenon groove steel plate are arc surface,
The diameter of arc surface is identical with the interior diameter of common steel tube；Two band Tenon groove steel plates are placed up and down, make the steel plate tenon of the two
Fourth of the twelve Earthly Branches groove para-position occlusion, is formed at the cross steel plate that horizontal direction intersects vertically；Single hole round plate is arranged at common steel tube
End, the end face of cross steel plate is arranged at the end face of single hole round plate, and the other end of cross steel plate arranges Round Porous
Steel plate, forms assembly；The Round Porous steel plate para-position of two assemblies, by supporting screw bolt and nut between Round Porous steel plate
Connect, form the built-in bolt between common steel tube and connect.
Described steel pipe built-in bolt connecting device structure, the junction between common steel tube arranges outsourcing doughnut-shaped steel plate,
Outsourcing doughnut-shaped steel plate is that two semi-rings snap onto the connection between common steel tube to opening structure, two semi-rings of outsourcing doughnut-shaped steel plate
Part.
Described steel pipe built-in bolt connecting device structure, by outsourcing annular between two semi-rings of outsourcing doughnut-shaped steel plate
Steel plate Tenon key and outsourcing doughnut-shaped steel plate Tenon groove fit connect, and the two ends of each semi-ring are respectively provided with outsourcing doughnut-shaped steel plate tenon
Fourth of the twelve Earthly Branches key and outsourcing doughnut-shaped steel plate Tenon groove.
Described steel pipe built-in bolt connecting device structure, the cross section of outsourcing doughnut-shaped steel plate Tenon key is isosceles triangle,
Outsourcing doughnut-shaped steel plate Tenon groove accommodates outsourcing doughnut-shaped steel plate Tenon key, and at the end band card of outsourcing doughnut-shaped steel plate Tenon groove
Button.
Described steel pipe built-in bolt connecting device structure, the interior diameter of outsourcing doughnut-shaped steel plate and thickness are all and common steel tube
Identical, the height of outsourcing doughnut-shaped steel plate is equal to 2 times of band Tenon groove steel plate height and Round Porous steel plate thickness.
Described steel pipe built-in bolt connecting device structure, the diameter of single hole round plate is with the overall diameter of common steel tube, many
The diameter of hole round plate is identical with the internal diameter of common steel tube, and the degree of depth of steel plate Tenon groove through band Tenon groove steel plate is 1/2
The height of steel plate.
The assemble method of described steel pipe built-in bolt connecting device structure, concrete assembling process is as follows:
(1) by single hole round plate with the form of groove welding, it is welded in the end of common steel tube；
(2) two band Tenon groove steel plates are placed up and down, make the steel plate Tenon groove para-position of the two be engaged, be formed at water
Square to the cross steel plate intersected vertically；
(3) end face of cross steel plate is welded in the end face of single hole round plate, during welding, it is ensured that band Tenon groove steel
The end face of plate is kept at a distance equal with the edge of single hole round plate, the thickness that distance is common steel tube；
(4) by Round Porous Plate Welding in the other end of cross steel plate, during welding, it is ensured that band Tenon groove steel plate
End face aligns with Round Porous edges of plate, forms assembly；
(5) assembly is transported to job site, by two assembly para-positions, then by bolt through Round Porous steel plate
Circular hole, fastening nut, the para-position completing common steel tube connects.
Two semi-rings of outsourcing doughnut-shaped steel plate are buckled in by the assemble method of described steel pipe built-in bolt connecting device structure
Coupling part between common steel tube and being placed on single hole round plate, makes the outsourcing annular steel of one semi-ring of outsourcing doughnut-shaped steel plate
Plate Tenon key and outsourcing doughnut-shaped steel plate Tenon groove, be respectively clamped into outsourcing doughnut-shaped steel plate Tenon groove and the outsourcing of another semi-ring
Doughnut-shaped steel plate Tenon key.
The assemble method of described assembling type steel structure beam through mortise and tenon type node structure, step (1)-(4) are all in factory
Precast assembly completes, and step (5) is completed the most at the scene.
The invention have the characteristics that and beneficial effect:
1, this connection, needs the part of welding all can be prefabricated in the factory, when constructing at the scene, it is only necessary to bolt is even
Connecing, connecting structure is simple, and easy for installation, less demanding to workmen's technical merit, site operation difficulty is little, and construction quality is held
Easily ensure.
2, this connection, the coupling part of common steel tube, all it is contained in inside outsourcing doughnut-shaped steel plate, after installation, several
Do not affect the building aesthetic of overall steel pipe.
3, this connection, compares conventional steel connected mode, and more flexibly, practicality is higher, and follow-up maintenance is changed more
Add conveniently, dismantle the most fairly simple, for interim or active type building structure superiority is more prominent.
4, this connection, compares conventional steel connected mode, and connecting elements can repeated multiple times utilize, environmental protection and energy saving, more preferably
The requirement meeting green building instantly.
Accompanying drawing explanation
Fig. 1 is the graphics of the common steel tube of the present invention.
Fig. 2 is the graphics of the single hole round plate of the present invention.
Fig. 3 is the graphics of the Round Porous steel plate of the present invention.
Fig. 4 is the graphics of the band Tenon groove steel plate of the present invention.
Fig. 5 is the graphics of the outsourcing doughnut-shaped steel plate at the fastener for connection of the present invention.
Fig. 6 is the graphics after single hole round plate welds with common steel tube.
Fig. 7 is the graphics in two band Tenon groove steel plate assembling process.
Fig. 8 is the graphics that two band Tenon groove steel plates are completed.
Fig. 9 is band Tenon groove steel plate, the graphics of single hole round plate assembling process.
Figure 10 is the graphics that band Tenon groove steel plate, single hole round plate are completed.
Figure 11 is the graphics of Round Porous steel plate and Figure 10 assembling process.
Figure 12 is the graphics that Round Porous steel plate is completed with Figure 10.
Figure 13 is the graphics of Figure 12 Yu Figure 12 connection procedure.
The graphics that Figure 14 is Figure 12 to be connected with Figure 12.
Figure 15 is the graphics of assembling process at outsourcing doughnut-shaped steel plate and fastener for connection.
Figure 16 be outsourcing doughnut-shaped steel plate with fastener for connection at the graphics that is completed.
In figure, 1 common steel tube；2 single hole round plates；3 Round Porous steel plates；4 band Tenon groove steel plates；5 steel plate Tenon grooves；
6 outsourcing doughnut-shaped steel plates；7 outsourcing doughnut-shaped steel plate Tenon keys；8 outsourcing doughnut-shaped steel plate Tenon grooves；9 bolts；10 nuts.
Detailed description of the invention
As shown in Fig. 1-Figure 16, steel pipe of the present invention built-in bolt connecting device structure, specifically include that common steel tube 1, single hole
Round plate 2, Round Porous steel plate 3, band Tenon groove steel plate 4, steel plate Tenon groove 5, outsourcing doughnut-shaped steel plate 6, outsourcing doughnut-shaped steel plate
Tenon key 7, outsourcing doughnut-shaped steel plate Tenon groove 8, bolt 9, nut 10 etc., concrete structure is as follows:
As in figure 2 it is shown, the single hole round plate 2 of the present invention, single hole is positioned in the middle of single hole round plate 2, and single hole diameter 5cm is left
The right side, this single hole purpose is set when being to assemble, finger or other instrument can be stretched into single hole, mobile single hole round plate 2 is installed.
The diameter of single hole round plate 2 is identical with the overall diameter of common steel tube 1, and the thickness of single hole round plate 2 connects according to common steel tube 1
Place's band Tenon groove steel plate 4 passes to the size calculating of power at single hole round plate 2 and determines.
As it is shown on figure 3, the Round Porous steel plate 3 of the present invention, the circular hole quantity of Round Porous steel plate 3 is identical with the quantity of bolt 9,
The quantity of bolt 9 is according to steel pipe shearing resistance and flexural calculation.The diameter of Round Porous steel plate 3 is identical with the internal diameter of common steel tube 1, porous
The size that the thickness of round plate 3 passes to power at Round Porous steel plate 3 according to common steel tube 1 junction band Tenon groove steel plate 4 calculates
Determine.
As shown in Figure 4, the band Tenon groove steel plate 4 of the present invention, steel plate Tenon groove is opened in the one side of band Tenon groove steel plate 4
5, the height that the degree of depth is 1/2 steel plate of steel plate Tenon groove 5 through band Tenon groove steel plate 4.Thickness with Tenon groove steel plate 4
Degree, calculates according to the actual loading situation of common steel tube 1 junction band Tenon groove steel plate 4 and determines.With Tenon groove steel plate 4
Highly, the construction space requirement of installation bolt is met according to construction requirement.Two end faces with Tenon groove steel plate 4 are circular arc
Face, the diameter of arc surface is identical with the interior diameter of common steel tube.
As it is shown in figure 5, the outsourcing doughnut-shaped steel plate 6 of common steel tube 1 junction of the present invention is that two semi-rings are to opening structure, outsourcing
The interior diameter of doughnut-shaped steel plate 6 is all identical with common steel tube 1 with thickness.The height of outsourcing doughnut-shaped steel plate 6, equal to band Tenon groove steel
Plate 4 height with 2 times of Round Porous steel plate 3 thickness.By outsourcing doughnut-shaped steel plate Tenon between two semi-rings of outsourcing doughnut-shaped steel plate 6
Key 7 and outsourcing doughnut-shaped steel plate Tenon groove 8 are connected, and the two ends of each semi-ring are respectively provided with outsourcing doughnut-shaped steel plate Tenon key 7
With outsourcing doughnut-shaped steel plate Tenon groove 8.The cross section of outsourcing doughnut-shaped steel plate Tenon key 7 is isosceles triangle, outsourcing doughnut-shaped steel plate tenon
Fourth of the twelve Earthly Branches groove 8 just can accommodate outsourcing doughnut-shaped steel plate Tenon key 7, and at the end band buckle of outsourcing doughnut-shaped steel plate Tenon groove 8,
Outsourcing doughnut-shaped steel plate Tenon key 7 and the sectional dimension of outsourcing doughnut-shaped steel plate Tenon groove 8, stress deformation when connecting according to the two
Situation and manufacturing technique requirent determine.
As shown in Fig. 6-Figure 16, the assemble method of steel pipe of the present invention built-in bolt connecting device structure, concrete assembling process
As follows:
As shown in Figure 6, by single hole round plate 2 with the form of groove welding, it is welded in the end of common steel tube 1.
As shown in Figs. 7-8, two band Tenon groove steel plates about 4 are placed, make steel plate Tenon groove 5 para-position of the two
Occlusion, is formed at the cross steel plate that horizontal direction intersects vertically.
As shown in Fig. 9-Figure 10, the end face of cross steel plate is welded in the end face of single hole round plate 2, during welding, protects
Inside the edge of the end face distance single hole round plate 2 of card band Tenon groove steel plate 4, big size is common steel tube thickness.
As shown in Figure 11-Figure 12, Round Porous steel plate 3 is welded in the other end of cross steel plate, during welding, it is ensured that band
The end face of Tenon groove steel plate 4 and the justified margin of Round Porous steel plate 3, form assembly.
Above-mentioned assembling process can be prefabricated in the factory.
As shown in Figure 13-Figure 14, assembly is transported to job site, by the requirement of job site, by two assemblies
Para-position, then passes the circular hole of Round Porous steel plate 3, fastening nut 10 by bolt 9, and the para-position completing common steel tube 1 connects.
As shown in Figure 15-Figure 16, two semi-rings of outsourcing doughnut-shaped steel plate 6 are buckled in the coupling part between common steel tube 1,
Make outsourcing doughnut-shaped steel plate Tenon key 7 and the outsourcing doughnut-shaped steel plate Tenon groove 8 of 6 one semi-rings of outsourcing doughnut-shaped steel plate, be respectively clamped into
The outsourcing doughnut-shaped steel plate Tenon groove 8 of another semi-ring and outsourcing doughnut-shaped steel plate Tenon key 7.And then, complete the built-in bolt of steel pipe
The assembling of attachment means structure.
Embodiment result shows, steel pipe of the present invention built-in bolt connecting device structure and assemble method: built-in bolt connects
Device needs the part of welding all can be prefabricated in the factory, when constructing at the scene, it is only necessary to bolt connects, connecting structure letter
Single, easy for installation, less demanding to workmen's technical merit, site operation difficulty is little, and construction quality is easily guaranteed that；Ordinary steel
The coupling part of pipe, is all contained in inside outsourcing doughnut-shaped steel plate, after installation, has little influence on the beauty of architecture of overall steel pipe
See requirement；This connection, compares conventional steel connected mode, and more flexibly, practicality is higher, and follow-up maintenance is changed more square
Just, dismantle the most fairly simple, for interim or active type building structure superiority is more prominent；This connection, compares conventional steel
Connected mode, connecting elements can repeated multiple times utilize, and environmental protection and energy saving have better met the requirement of green building instantly.
Claims (9)
1. a steel pipe built-in bolt connecting device structure, it is characterised in that this structure includes: common steel tube, single hole round plate,
Round Porous steel plate, band Tenon groove steel plate, steel plate Tenon groove, outsourcing doughnut-shaped steel plate, outsourcing doughnut-shaped steel plate Tenon key, outsourcing ring
Shape steel plate Tenon groove, bolt, nut, concrete structure is as follows:
Steel plate Tenon groove is opened in one side with Tenon groove steel plate, and two end faces of band Tenon groove steel plate are arc surface, circular arc
The diameter in face is identical with the interior diameter of common steel tube；Two band Tenon groove steel plates are placed up and down, and the steel plate Tenon making the two is recessed
Groove para-position is engaged, and is formed at the cross steel plate that horizontal direction intersects vertically；Single hole round plate is arranged at the end of common steel tube,
The end face of cross steel plate is arranged at the end face of single hole round plate, and the other end of cross steel plate arranges Round Porous steel plate,
Form assembly；The Round Porous steel plate para-position of two assemblies, is connected by supporting screw bolt and nut between Round Porous steel plate,
Form the built-in bolt between common steel tube to connect.
2. according to the built-in bolt connecting device structure of the steel pipe described in claim 1, it is characterised in that the company between common steel tube
The place of connecing arranges outsourcing doughnut-shaped steel plate, and outsourcing doughnut-shaped steel plate is that two semi-rings are to opening structure, two and half latch closures of outsourcing doughnut-shaped steel plate
The coupling part being connected between common steel tube.
3. according to the built-in bolt connecting device structure of the steel pipe described in claim 2, it is characterised in that the two of outsourcing doughnut-shaped steel plate
Connected by outsourcing doughnut-shaped steel plate Tenon key and outsourcing doughnut-shaped steel plate Tenon groove fit between individual semi-ring, the two ends of each semi-ring
It is respectively provided with outsourcing doughnut-shaped steel plate Tenon key and outsourcing doughnut-shaped steel plate Tenon groove.
4. according to the built-in bolt connecting device structure of the steel pipe described in claim 3, it is characterised in that outsourcing doughnut-shaped steel plate Tenon
The cross section of key is isosceles triangle, and outsourcing doughnut-shaped steel plate Tenon groove accommodates outsourcing doughnut-shaped steel plate Tenon key, and in outsourcing annular
The end band buckle of steel plate Tenon groove.
5. according to the built-in bolt connecting device structure of the steel pipe described in claim 2, it is characterised in that outsourcing doughnut-shaped steel plate interior
Diameter is all identical with common steel tube with thickness, and the height of outsourcing doughnut-shaped steel plate is equal to band Tenon groove steel plate height and porous round steel
2 times of plate thickness.
6. according to the built-in bolt connecting device structure of the steel pipe described in claim 1, it is characterised in that the diameter of single hole round plate
With the overall diameter of common steel tube, the diameter of Round Porous steel plate is identical with the internal diameter of common steel tube, steel plate Tenon groove through band tenon
The height that the degree of depth is 1/2 steel plate of fourth of the twelve Earthly Branches groove steel plate.
7. the assemble method of the steel pipe built-in bolt connecting device structure that one of claim 1-6 is described, it is characterised in that
Concrete assembling process is as follows:
(1) by single hole round plate with the form of groove welding, it is welded in the end of common steel tube；
(2) two band Tenon groove steel plates are placed up and down, make the steel plate Tenon groove para-position of the two be engaged, be formed at level side
To the cross steel plate intersected vertically；
(3) end face of cross steel plate is welded in the end face of single hole round plate, during welding, it is ensured that band Tenon groove steel plate
End face is kept at a distance equal with the edge of single hole round plate, the thickness that distance is common steel tube；
(4) by Round Porous Plate Welding in the other end of cross steel plate, during welding, it is ensured that the end face of band Tenon groove steel plate
Align with Round Porous edges of plate, form assembly；
(5) assembly is transported to job site, by two assembly para-positions, then bolt is passed the circle of Round Porous steel plate
Hole, fastening nut, the para-position completing common steel tube connects.
8. according to the assemble method of the built-in bolt connecting device structure of the steel pipe described in claim 7, it is characterised in that by outsourcing
Coupling part that two semi-rings of doughnut-shaped steel plate are buckled between common steel tube and being placed on single hole round plate, makes outsourcing annular steel
The outsourcing doughnut-shaped steel plate Tenon key of one semi-ring of plate and outsourcing doughnut-shaped steel plate Tenon groove, be respectively clamped into the outsourcing of another semi-ring
Doughnut-shaped steel plate Tenon groove and outsourcing doughnut-shaped steel plate Tenon key.
9., according to the assemble method of the assembling type steel structure beam through mortise and tenon type node structure described in claim 7, its feature exists
The assembly that is all prefabricated in the factory in, step (1)-(4) completes, and step (5) is completed the most at the scene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610844084.6A CN106193333A (en) | 2016-09-23 | 2016-09-23 | Steel pipe built-in bolt connecting device structure and assemble method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610844084.6A CN106193333A (en) | 2016-09-23 | 2016-09-23 | Steel pipe built-in bolt connecting device structure and assemble method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106193333A true CN106193333A (en) | 2016-12-07 |
Family
ID=58067131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610844084.6A Pending CN106193333A (en) | 2016-09-23 | 2016-09-23 | Steel pipe built-in bolt connecting device structure and assemble method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106193333A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299683A (en) * | 2017-06-02 | 2017-10-27 | 长安大学 | Compound concrete-filled tubular column assembled docks node and connection method |
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| CN206052984U (en) * | 2016-09-23 | 2017-03-29 | 沈阳建筑大学 | The built-in bolt connecting device structure of steel pipe |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0441829A (en) * | 1990-06-06 | 1992-02-12 | Shimizu Corp | Pillar/beam joint and its execution method |
| JPH09195385A (en) * | 1996-01-24 | 1997-07-29 | Daiwa House Ind Co Ltd | Joining structure of square steel pipe post and joining hardware |
| CN201515178U (en) * | 2009-09-28 | 2010-06-23 | 铁岭市光电研究所 | Cable protection pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299683A (en) * | 2017-06-02 | 2017-10-27 | 长安大学 | Compound concrete-filled tubular column assembled docks node and connection method |
| CN107299683B (en) * | 2017-06-02 | 2019-03-29 | 长安大学 | Compound concrete-filled tubular column assembled docks node and connection method |
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Application publication date: 20161207 |