CN210507982U - A bearing connecting device for steel constructs roof - Google Patents
A bearing connecting device for steel constructs roof Download PDFInfo
- Publication number
- CN210507982U CN210507982U CN201921167762.5U CN201921167762U CN210507982U CN 210507982 U CN210507982 U CN 210507982U CN 201921167762 U CN201921167762 U CN 201921167762U CN 210507982 U CN210507982 U CN 210507982U
- Authority
- CN
- China
- Prior art keywords
- plate
- roof
- mortise
- steel
- piece
- 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.)
- Active
Links
Images
Abstract
The utility model relates to a bearing connecting device for steel structure roof, including mortise spare and tenon spare, the mortise spare includes integrative welded bottom plate and stand A, and the bottom plate is located the below of stand A, and the top surface of stand A is equipped with the screw hole, and the bottom plate of mortise spare is used for fixed connection on the roof H shaped steel roof girder steel of steel structure, and the stand A of mortise spare is used for passing through the corresponding through-hole on the roof cladding board of steel structure, but does not exceed the top surface of roof cladding board; the tenon piece comprises a top-down integrally welded top plate, a stand column B and a connecting column, external threads are arranged on the connecting column, the external threads on the connecting column are matched with threaded holes in the stand column A of the mortise piece in a threaded mode, and the top plate is used for supporting heavy objects. This technical scheme is used for connecting the H shaped steel roof beam of installation heavy object and steel structure roof, makes the gravity of installing the heavy object can directly transmit to the H shaped steel roof beam of steel structure through this device on, and bearing capacity is high.
Description
Technical Field
The invention relates to the technical field of roof bearing connecting devices, in particular to a bearing connecting device for a steel roof.
Background
The light steel structure is a steel structure form widely applied in China in recent decades, is favored by a large number of design units due to the advantages of light dead weight, high construction speed, low manufacturing cost and the like, is particularly widely popularized in the aspect of industrial plants, and obtains good social and economic benefits.
On the purlin system roof of industry or civil construction light steel structure, generally will install heavy object such as solar photovoltaic board, solar water heater board, air conditioner host computer, small-size cooling tower according to the engineering needs, the mounting means of prior art generally is: set up the fixed bolster on the purlin to with heavy object direct mount on the fixed bolster, this kind of mounting means is when the weight of the heavy object of installing is not very big relatively, the purlin can be used for direct bearing, can not produce the destruction to the steel structure roof, however, if the weight of the heavy object of installing is great relatively, be enough for the atress situation of purlin to reach the ultimate stress that its can bear, the purlin can be destroyed promptly, consequently, this kind of mounting means of prior art then can not satisfy similar actual requirement.
As is well known, in a steel roof, the strength limit of a roof H-beam is much higher than that of a purline, so that when the bearing capacity of the roof H-beam meets the requirement of a new heavy object, it is necessary to design a bearing connecting device, so that the bearing connecting device can be directly fixed on the roof H-beam and used for supporting a heavy object with relatively large weight on the roof H-beam.
Disclosure of Invention
The invention aims to solve the technical problem of making up the defects of the prior art and provides a bearing connecting device for a steel roof, which is used for connecting an installation heavy object and an H-shaped steel beam of the steel roof, so that the gravity of the installed heavy object can be directly transmitted to the H-shaped steel beam of the steel roof through the device, and the bearing capacity is high.
To solve the technical problems, the technical scheme of the invention is as follows: a bearing connecting device for a steel roof comprises a mortise part and a tenon part, wherein the mortise part comprises a bottom plate and an upright post A which are integrally welded, the bottom plate is positioned below the upright post A, the top surface of the upright post A is provided with a threaded hole, the bottom plate of the mortise part is used for being fixedly connected to an H-shaped steel beam of the steel roof, and the upright post A of the mortise part is used for penetrating through a corresponding through hole on a steel roof covering plate but does not exceed the top surface of the steel roof covering plate; the tenon piece comprises a top-down integrally welded top plate, a stand column B and a connecting column, the cross section size of the stand column B is larger than that of the connecting column, an external thread is arranged on the connecting column, the external thread on the connecting column is matched with a threaded hole on a stand column A of the mortise piece in a threaded manner, and the top plate is used for supporting a heavy object.
Furthermore, a through hole A is formed in a bottom plate of the mortise piece, the mortise piece also comprises an L-shaped fixing base plate, the L-shaped fixing base plate comprises a long plate and a short plate, and a through hole B is formed in the long plate of the L-shaped fixing base plate; the bottom plate of the mortise piece and the long plate of the L-shaped fixed base plate are used for placing the upper flange plate of the H-shaped steel beam of the steel roof in the middle, and the bolt is used for penetrating through the through hole A of the mortise piece and the through hole B of the L-shaped fixed base plate; the nut is matched with the bolt.
Further, the relationship between the bottom surface of the top plate of the tenon piece and the axis of the connecting column is intersection, and the size of the intersection angle is 71-90 degrees.
Further, the intersection angle between the bottom surface of the top plate of the tenon piece and the axis of the connecting column is 90 degrees, namely, the intersection angles are perpendicular to each other.
Further, at the threaded hole of the stud A of the mortise element, the wall thickness of the stud A is not less than 15 mm.
Furthermore, the connecting column of the tenon element sequentially penetrates through the through holes in the pressing plate and the sealing rubber pad to extrude the pressing plate and the sealing rubber pad on the top surface of the roof covering plate, the sealing rubber pad plays a role in sealing and water proofing, and the pressing plate enables sealing to be more reliable.
Furthermore, the number of the mortise parts and the tenon parts is equal and is a plurality of, and the heavy load bearing beam is fixedly connected with the tenon parts and is used for being fixedly connected with the heavy load.
The invention can achieve the following beneficial effects:
1) the device can connect the heavy object and the H-shaped steel beam of the steel roof together, so that the gravity of the heavy object can be directly transmitted to the H-shaped steel beam of the steel roof through the device, the bearing capacity is high, and the problem that the purline is crushed due to the large heavy substance amount is well solved;
2) the mortise piece and the L-shaped fixed base plate are connected through the bolt to clamp the upper flange plate of the H-shaped steel beam of the roof together, so that the mortise piece and the H-shaped steel beam of the roof are fixedly connected, the bolt connection is convenient for construction, the fire welding is not needed, and the fire disaster generated in the construction process is avoided;
3) the sealing rubber pad plays a role in sealing and waterproofing.
Drawings
FIG. 1 is a schematic view of a connection structure of embodiment 2 of the present invention with a steel roof;
FIG. 2 is an exploded view of the connection structure of embodiment 2 of the present invention with a steel roof;
FIG. 3 is a schematic diagram of an application of embodiment 2 of the present invention;
FIG. 4 is a schematic diagram of an application of embodiment 3 of the present invention;
in the figure: 1-roof H-shaped steel beam, 2-roof purlin, 3-bearing connecting device, 31-mortise member, 311-bottom plate, 312-column A, 313-threaded hole, 32-tenon member, 321-top plate, 322-column B, 323-connecting column, 33-pressing plate, 34-sealing rubber pad, 35-bolt, 36-L-shaped fixing pad, 37-nut, 4-roof covering plate, 41-through hole, 5-weight bearing beam and 6-weight.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The steel roof generally comprises a roof H-shaped steel beam 1, a roof purlin 2 fixed on the roof H-shaped steel beam 1 and a roof covering plate 4 fixed on the roof purlin 2, wherein the angle between the roof covering plate 4 and the ground horizontal plane is 15 degrees, and the roof covering plate 4 can be a single-laminated section steel plate or a sandwich plate.
Note: in the civil building design general regulation GB50352-2005, the roof drainage slope of table 6.13.2 requires a profiled steel sheet roof drainage slope of 5% to 35% and an angle of about 3 ° to 19 °, so the angle between the roof cladding sheet 4 and the ground level may be not only 15 ° as described above, but also any value between 3 ° and 19 °.
Example 1
A bearing connecting device 3 for a steel roof comprises a mortise member 31, a tenon member 32, a pressure plate 33 and a sealing rubber pad 34;
the mortise element 31 comprises a bottom plate 311 and a column A312 which are welded integrally, the bottom plate 311 is positioned below the column A312, the top surface of the column A312 is provided with a threaded hole 313, the wall thickness of the column A312 is not less than 15mm at the threaded hole 313, the bottom plate 311 of the mortise element 31 is used for being welded on the steel H-shaped roof steel beam 1, and the column A312 of the mortise element 31 is used for penetrating through a corresponding through hole 41 on a steel roof covering plate 4 but not exceeding the top surface of the roof covering plate 4;
the tenon piece 32 comprises a top plate 321, a vertical column B322 and a connecting column 323 which are integrally welded from top to bottom, the intersection angle between the bottom surface of the top plate 321 and the axis of the connecting column 323 is 90 degrees, namely, the intersection angles are perpendicular to each other, the cross section size of the vertical column B322 is larger than that of the connecting column 323, the connecting column 323 is provided with external threads, and the external threads on the connecting column 323 are matched and screwed with the threaded hole 313 on the vertical column A312 of the mortise piece 31.
Use of this example:
1) 2 sets of the load-bearing connecting devices 3 of the embodiment with the same corresponding size are selected;
2) the upright post A312 of the mortise element 31 is in clearance fit with the through hole 41 of the roof covering plate 4, but does not exceed the top surface of the roof covering plate 4, and the bottom plate 311 of the mortise element 31 is welded on the steel roof H-shaped steel beam 1;
3) the connecting column 323 of the tenon element 32 sequentially passes through the through holes on the pressing plate 33 and the sealing rubber pad 34 and is matched and screwed with the threaded hole 313 on the upright column A312 of the mortise element 31, so that the pressing plate 33 and the sealing rubber pad 34 are pressed on the top surface of the roof covering plate 4, the sealing rubber pad 34 plays a role in sealing and waterproofing, and the pressing plate 33 ensures that the sealing is more reliable;
4) the weight beam 5 is also fixedly connected to the top plate 321 of the 2 sets of tenon members 32 in this embodiment by screws, the top surface of the weight beam 5 is parallel to the top surface of the roof covering panel 4, and the weight beam 5 is used for fixedly connecting to the weight 6.
The characteristics of this embodiment:
1) the device can connect the heavy object and the H-shaped steel beam of the steel roof together, so that the gravity of the heavy object can be directly transmitted to the H-shaped steel beam of the steel roof through the device, the bearing capacity is high, and the problem that the purline is crushed due to the large heavy substance amount is well solved;
2) the sealing rubber pad plays a role in sealing and waterproofing;
3) the heavy objects and the slope of the steel roof can be arranged in parallel.
Example 2
A bearing connecting device 3 for a steel structure roof comprises a mortise member 31, a tenon member 32, a pressing plate 33, a sealing rubber pad 34 and L-shaped fixed backing plates 36, wherein the number of the L-shaped fixed backing plates 36 is 1;
the mortise element 31 comprises a bottom plate 311 and a column A312 which are welded integrally, the bottom plate 311 is positioned below the column A312, the top surface of the column A312 is provided with a threaded hole 313, the wall thickness of the column A312 is not less than 15mm at the threaded hole 313, the bottom plate 311 of the mortise element 31 is provided with a through hole A, the bottom plate 311 of the mortise element 31 is used for being fixedly connected to the steel roof H-shaped steel beam 1, and the column A312 of the mortise element 31 is used for penetrating through a corresponding through hole 41 on the steel roof covering plate 4 but not exceeding the top surface of the roof covering plate 4;
the L-shaped fixing backing plate 36 comprises a long plate and a short plate, a through hole B is formed in the long plate of the L-shaped fixing backing plate 36, the bottom plate 311 of the mortise piece 31 and the long plate of the L-shaped fixing backing plate 36 are used for clamping an upper flange plate of the steel roof H-shaped steel beam 1 of the steel structure, the bolt 35 is used for penetrating through the through hole A of the mortise piece 31 and the through hole B of the L-shaped fixing backing plate 36, and the nut 37 is matched with the bolt 35;
the tenon piece 32 comprises a top plate 321, a vertical column B322 and a connecting column 323 which are integrally welded from top to bottom, the intersection angle between the bottom surface of the top plate 321 and the axis of the connecting column 323 is 90 degrees, namely, the intersection angles are perpendicular to each other, the cross section size of the vertical column B322 is larger than that of the connecting column 323, the connecting column 323 is provided with external threads, and the external threads on the connecting column 323 are matched and screwed with the threaded hole 313 on the vertical column A312 of the mortise piece 31.
Use of this example:
1) 2 sets of the load-bearing connecting devices 3 of the embodiment with the same corresponding size are selected;
2) the studs a312 of the mortise elements 31 are in clearance fit with the through holes 41 of the roof-covering panels 4, but do not extend beyond the top surface of the roof-covering panels 4; the bottom plate 311 of the mortise piece 31 and the long plate of 1 pair of L-shaped fixing backing plates 36 clamp the upper flange plate of the steel roof H-shaped steel beam 1 in the middle, the short plate end part of the L-shaped fixing backing plate 36 is attached to the bottom plate 311 of the mortise piece 31, the bolt 35 sequentially passes through the through hole A of the mortise piece 31 and the through hole B of the L-shaped fixing backing plate 36, the end part of the bolt 35 is screwed with the nut 37, and the mortise piece 31 is fixed on the steel roof H-shaped steel beam 1 by fastening the nut 37;
3) the connecting column 323 of the tenon element 32 sequentially passes through the through holes on the pressing plate 33 and the sealing rubber pad 34 and is matched and screwed with the threaded hole 313 on the upright column A312 of the mortise element 31, so that the pressing plate 33 and the sealing rubber pad 34 are pressed on the top surface of the roof covering plate 4, the sealing rubber pad 34 plays a role in sealing and waterproofing, and the pressing plate 33 ensures that the sealing is more reliable;
4) the weight beam 5 is also fixedly connected to the top plate 321 of the 2 sets of tenon members 32 in this embodiment by screws, the top surface of the weight beam 5 is parallel to the top surface of the roof covering panel 4, and the weight beam 5 is used for fixedly connecting to the weight 6.
The characteristics of this embodiment:
1) the device can connect the heavy object and the H-shaped steel beam of the steel roof together, so that the gravity of the heavy object can be directly transmitted to the H-shaped steel beam of the steel roof through the device, the bearing capacity is high, and the problem that the purline is crushed due to the large heavy substance amount is well solved;
2) the mortise piece and the L-shaped fixed base plate are connected through the bolt to clamp the upper flange plate of the H-shaped steel beam of the roof together, so that the mortise piece and the H-shaped steel beam of the roof are fixedly connected, the bolt connection is convenient for construction, the fire welding is not needed, and the fire disaster generated in the construction process is avoided;
3) the sealing rubber pad plays a role in sealing and waterproofing;
4) the heavy objects and the slope of the steel roof can be arranged in parallel.
Example 3
A bearing connecting device 3 for a steel structure roof comprises a mortise member 31, a tenon member 32, a pressing plate 33, a sealing rubber pad 34 and L-shaped fixed backing plates 36, wherein the number of the L-shaped fixed backing plates 36 is 1;
the mortise element 31 comprises a bottom plate 311 and a column A312 which are welded integrally, the bottom plate 311 is positioned below the column A312, the top surface of the column A312 is provided with a threaded hole 313, the wall thickness of the column A312 is not less than 15mm at the threaded hole 313, the bottom plate 311 of the mortise element 31 is provided with a through hole A, the bottom plate 311 of the mortise element 31 is used for being fixedly connected to the steel roof H-shaped steel beam 1, and the column A312 of the mortise element 31 is used for penetrating through a corresponding through hole 41 on the steel roof covering plate 4 but not exceeding the top surface of the roof covering plate 4;
the L-shaped fixing backing plate 36 comprises a long plate and a short plate, a through hole B is formed in the long plate of the L-shaped fixing backing plate 36, the bottom plate 311 of the mortise piece 31 and the long plate of the L-shaped fixing backing plate 36 are used for clamping an upper flange plate of the steel roof H-shaped steel beam 1 of the steel structure, the bolt 35 is used for penetrating through the through hole A of the mortise piece 31 and the through hole B of the L-shaped fixing backing plate 36, and the nut 37 is matched with the bolt 35;
the tenon piece 32 comprises a top plate 321, a vertical column B322 and a connecting column 323 which are integrally welded from top to bottom, the intersection angle between the bottom surface of the top plate 321 and the axis of the connecting column 323 is 75 degrees (according to the actual condition of the roof drainage slope, the intersection angle value can be any value between 71 degrees and 87 degrees), the cross section size of the vertical column B322 is larger than that of the connecting column 323, the connecting column 323 is provided with external threads, and the external threads on the connecting column 323 are matched and screwed with the threaded hole 313 on the vertical column A312 of the mortise piece 31.
Use of this example:
1) 2 sets of the load-bearing connecting device 3 of the embodiment are selected, and the lengths of the upright posts B322 of 2 tenon parts 32 in the 2 sets are different;
2) the studs a312 of the mortise elements 31 are in clearance fit with the through holes 41 of the roof-covering panels 4, but do not extend beyond the top surface of the roof-covering panels 4; the bottom plate 311 of the mortise piece 31 and the long plate of 1 pair of L-shaped fixing backing plates 36 clamp the upper flange plate of the steel roof H-shaped steel beam 1 in the middle, the short plate end part of the L-shaped fixing backing plate 36 is attached to the bottom plate 311 of the mortise piece 31, the bolt 35 sequentially passes through the through hole A of the mortise piece 31 and the through hole B of the L-shaped fixing backing plate 36, the end part of the bolt 35 is screwed with the nut 37, and the mortise piece 31 is fixed on the steel roof H-shaped steel beam 1 by fastening the nut 37; the top faces of the top plates 321 of the 2 tenon members 32 are on the same plane;
3) the connecting column 323 of the tenon element 32 sequentially passes through the through holes on the pressing plate 33 and the sealing rubber pad 34 and is matched and screwed with the threaded hole 313 on the upright column A312 of the mortise element 31, so that the pressing plate 33 and the sealing rubber pad 34 are pressed on the top surface of the roof covering plate 4, the sealing rubber pad 34 plays a role in sealing and waterproofing, and the pressing plate 33 ensures that the sealing is more reliable;
4) the weight bearing beam 5 is fixedly connected with the top plate 321 of the 2 sets of tenon members 32 in the embodiment through screws, the top surface of the weight bearing beam 5 is parallel to the horizontal plane of the ground, and the weight bearing beam 5 is used for being fixedly connected with the weight 6.
The characteristics of this embodiment:
1) the device can connect the heavy object and the H-shaped steel beam of the steel roof together, so that the gravity of the heavy object can be directly transmitted to the H-shaped steel beam of the steel roof through the device, the bearing capacity is high, and the problem that the purline is crushed due to the large heavy substance amount is well solved;
2) the mortise piece and the L-shaped fixed base plate are connected through the bolt to clamp the upper flange plate of the H-shaped steel beam of the roof together, so that the mortise piece and the H-shaped steel beam of the roof are fixedly connected, the bolt connection is convenient for construction, the fire welding is not needed, and the fire disaster generated in the construction process is avoided;
3) the sealing rubber pad plays a role in sealing and waterproofing;
4) the weight can be arranged parallel to the horizontal plane of the bottom surface.
In the description of the present invention, words such as "inner", "outer", "upper", "lower", "front", "rear", etc., indicating orientations or positional relationships, are used for convenience in describing the present invention, and do not indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The above description is only one embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the spirit of the present invention.
Claims (6)
1. The utility model provides a bearing connecting device for steel constructs roof, characterized by: the steel structure is characterized by comprising a mortise piece (31) and a tenon piece (32), wherein the mortise piece (31) comprises a bottom plate (311) and an upright post A (312) which are integrally welded, the bottom plate (311) is positioned below the upright post A (312), the top surface of the upright post A (312) is provided with a threaded hole (313), the bottom plate (311) of the mortise piece (31) is used for being fixedly connected to a steel roof H-shaped steel beam (1), and the upright post A (312) of the mortise piece (31) is used for penetrating through a corresponding through hole in a steel roof covering plate (4) but does not exceed the top surface of the steel roof covering plate (4); the tenon piece (32) comprises a top plate (321), a stand column B (322) and a connecting column (323) which are integrally welded from top to bottom, the cross section size of the stand column B (322) is larger than that of the connecting column (323), an external thread is arranged on the connecting column (323), the external thread on the connecting column (323) is matched and screwed with a threaded hole (313) in the stand column A (312) of the mortise piece (31), and the top plate (321) is used for supporting a heavy object (6).
2. The load-bearing connection for a steel roof as claimed in claim 1, wherein: the bottom plate (311) of the mortise piece (31) is provided with a through hole A, the mortise piece further comprises an L-shaped fixed backing plate (36), the L-shaped fixed backing plate (36) comprises a long plate and a short plate, and the long plate of the L-shaped fixed backing plate (36) is provided with a through hole B; a bottom plate (311) of the mortise piece (31) and a long plate of the L-shaped fixing base plate (36) are used for clamping an upper flange plate of the steel roof H-shaped steel beam (1) in the middle, and a bolt (35) is used for penetrating through a through hole A of the mortise piece (31) and a through hole B of the L-shaped fixing base plate (36); the nut (37) is matched with the bolt (35).
3. The load-bearing connection for a steel roof as claimed in claim 1, wherein: the relationship between the bottom surface of the top plate (321) of the tenon piece (32) and the axis of the connecting column (323) is intersection, and the size of the intersection angle is 71-90 degrees.
4. A load-bearing connection for a steel roof as claimed in claim 3, characterised in that: the intersection angle between the bottom surface of the top plate (321) of the tenon piece (32) and the axis of the connecting column (323) is 90 degrees, namely, the intersection angles are perpendicular to each other.
5. The load-bearing connection for a steel roof as claimed in claim 1, wherein: at the threaded hole (313) of the stud A (312) of the mortise element (31), the wall thickness of the stud A (312) is not less than 15 mm.
6. The load-bearing connection for a steel roof as claimed in claim 1, wherein: the connecting column (323) of the tenon piece (32) sequentially penetrates through holes in the pressing plate (33) and the sealing rubber pad (34) to extrude the pressing plate (33) and the sealing rubber pad (34) on the top surface of the roof covering plate (4), the sealing rubber pad (34) plays a role in sealing and waterproofing, and the pressing plate (33) enables sealing to be more reliable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921167762.5U CN210507982U (en) | 2019-07-24 | 2019-07-24 | A bearing connecting device for steel constructs roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921167762.5U CN210507982U (en) | 2019-07-24 | 2019-07-24 | A bearing connecting device for steel constructs roof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210507982U true CN210507982U (en) | 2020-05-12 |
Family
ID=70585538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921167762.5U Active CN210507982U (en) | 2019-07-24 | 2019-07-24 | A bearing connecting device for steel constructs roof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210507982U (en) |
-
2019
- 2019-07-24 CN CN201921167762.5U patent/CN210507982U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201490637U (en) | Fixing frame for mounting cable bridge on wall body | |
| CN201050117Y (en) | Detachable steel frame movable room | |
| CN210507982U (en) | A bearing connecting device for steel constructs roof | |
| CN212743106U (en) | Suspension beam for suspended ceiling plate | |
| JP3159980U (en) | Metal support beam | |
| CN102454222A (en) | Connecting piece for fixing steel structure | |
| CN110258798B (en) | Mounting method of assembled column base connection node | |
| CN203079591U (en) | Crane wall-attaching steel-structure switch connection support | |
| CN112282403A (en) | Outer hanging protection frame of high-rise steel construction regularization of assembled | |
| CN218771867U (en) | Photovoltaic support | |
| CN210724638U (en) | Device convenient to solar panel roof installation | |
| CN219753519U (en) | Support section steel structure | |
| CN219952270U (en) | Steel column bottom plate mounting structure | |
| CN210828097U (en) | Gable starting support | |
| CN217734358U (en) | Box column and high girder steel connection structure that varies | |
| CN213741779U (en) | Energy-concerving and environment-protective light gauge steel building infilled wall | |
| CN220267021U (en) | Steel structure box column for building | |
| CN219690860U (en) | Perforated aluminum alloy close jointed board connection structure | |
| CN219653902U (en) | Corrugated aluminum plate suspended ceiling installation and fixing system for assembled steel mesh frame roof structure | |
| CN217934963U (en) | Self-supporting cable support | |
| CN112160417B (en) | High-strength anti-seismic steel structure | |
| CN212129464U (en) | Special-shaped steel beam | |
| CN213115022U (en) | Assembled steel construction reinforcement for building | |
| CN211773700U (en) | Steel structure corner brace | |
| CN211949581U (en) | Cast-in-place floor formwork supporting structure for high-rise building |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |