CN212897449U - Connecting and fastening structure of steel support formwork support - Google Patents
Connecting and fastening structure of steel support formwork support Download PDFInfo
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- CN212897449U CN212897449U CN202020400148.5U CN202020400148U CN212897449U CN 212897449 U CN212897449 U CN 212897449U CN 202020400148 U CN202020400148 U CN 202020400148U CN 212897449 U CN212897449 U CN 212897449U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 280
- 239000010959 steel Substances 0.000 title claims abstract description 280
- 238000009415 formwork Methods 0.000 title claims description 14
- 239000000126 substance Substances 0.000 claims description 11
- 239000011150 reinforced concrete Substances 0.000 abstract description 16
- 238000010276 construction Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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Abstract
The utility model discloses a steel holds in palm connection fastening structure of die carrier, this connection fastener evenly fix on the round steel post and realize the round steel post and correspond round steel crossbeam, round steel diagonal draw bar fixed connection through connection fastener, the utility model discloses to the reinforced concrete structure form of large-span, big space, big load, great requirement that satisfies structure safety construction, quality, progress and cost saving.
Description
Technical Field
The utility model relates to a connection fastening structure of steel support formwork belongs to template support system construction technical field.
Background
Along with the rapid development of the building industry, the building structure forms are more and more diversified, in the construction process of structural reinforced concrete, the formwork support system is indispensable, the conventional formwork support system adopts a common steel pipe frame support system, and the common steel pipe frame support system can not meet the requirements of safe construction, quality, progress and cost saving of the structure for the reinforced concrete structure forms with large span, large space and large load.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a connection fastening structure of steel support formwork to solve the problem of proposing among the above-mentioned background art, thereby overcome prior art's not enough.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a connection fastening structure of steel support die carrier, this connection fastener evenly fixes on the round steel post and realizes the round steel post and correspond round steel crossbeam, round steel diagonal draw bar fixed connection through connection fastener, connection fastener includes:
an outer ring plate; the number of the outer ring plates is 2, the two outer ring plates are sleeved on the round steel columns and are welded and fixed with the corresponding round steel columns;
a round steel beam connecting plate; the round steel beam connecting plates are arranged between the two outer ring plates and are welded and fixed with the two outer ring plates, and the round steel beam connecting plates are centrosymmetric with the axes of the outer ring plates;
round steel diagonal draw bar connecting plates; the round steel diagonal draw bar connecting plates are arranged on the outer surface of the outer annular plate, and the steel diagonal draw bar connecting plates are centrosymmetric with the axis of the outer annular plate;
a T-shaped connecting plate; the T-shaped connecting plate comprises a bottom plate, and a middle connecting plate vertical to the bottom plate is arranged in the middle of the bottom plate;
the middle connecting plate is formed by two steel plates in parallel, and a gap is formed between the two steel plates;
connecting holes are arranged at corresponding positions on the round steel cross beam connecting plate, the round steel diagonal draw bar connecting plate and the T-shaped connecting plate;
the round steel beam connecting plate and the round steel diagonal draw bar connecting plate are inserted into the gap in the corresponding T-shaped connecting plate and connected through a chemical anchor bolt.
Preferably, the T-shaped connecting plate comprises a second T-shaped connecting plate vertically connected with two ends of the round steel cross beam and a first T-shaped connecting plate vertically connected with two ends of the round steel diagonal draw bar.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses to the reinforced concrete structure form of large-span, big space, big load, great requirement that satisfies structure safety construction, quality, progress and cost saving.
Drawings
Fig. 1 is a front view (a partial sectional view a in fig. 4) of the structure of the present invention;
FIG. 2 is a second front view of the structure of the present invention (example 2);
FIG. 3 is a top view of the present invention
FIG. 4 is a front view of the steel bracket supporting mold frame of the present invention;
FIG. 5 is a side view of FIG. 4;
FIG. 6 is a top view of FIG. 4;
FIG. 7 is a schematic diagram of a horizontal structure of a round steel beam in a steel support formwork;
FIG. 8 is a schematic cross view of a cross surface of a round steel column, a vertical surface of the round steel column and a horizontal surface of a round steel beam in the steel support formwork;
FIG. 9 is a schematic view of a stressed framework composed of a round steel column, a round steel cross beam and a round steel diagonal member in the steel support formwork;
FIG. 10 is a schematic structural view of a circular steel column in the steel pallet support formwork;
FIG. 11 is a partial cross-sectional view A of FIG. 1;
FIG. 12 is a side view of FIG. 8;
fig. 13 is a schematic structural view of the T-shaped connecting plate of the present invention.
Description of reference numerals: 1-round steel column with base, 2-round steel beam, 3-round steel diagonal draw bar, 4-I-steel lintel, 5-I-steel purlin, 6-chemical anchor bolt, 7-rear buried plate, 8-buried plate connecting plate, 10-round steel beam connecting plate, 11-outer ring plate, 12-reinforced concrete bottom plate, 13-reinforced concrete shear wall, 14-floor structural plate and beam, 15-base, 16-cylindrical steel transverse plane, 17-cylindrical steel vertical plane, 18-quadrilateral structure, 19-round steel beam horizontal plane, 20-round steel diagonal draw bar connecting plate, 21-T type connecting plate I, 22-T type connecting plate II and 23-bottom plate.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
In addition, an element of the present invention may be said to be "secured to" or "disposed on" another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1-13, the present invention provides a technical solution:
example 1: the utility model provides a connection fastening structure of steel support die carrier, this connecting fastener evenly fixes on round steel post 1 and realizes round steel post 1 and 3 fixed connection of the oblique pull rod of corresponding round steel crossbeam 2, round steel through connecting fastener, its characterized in that connecting fastener includes:
an outer ring plate 11; the number of the outer ring plates 11 is 2, the two outer ring plates 11 are sleeved on the round steel column 1, and the two outer ring plates 11 are welded and fixed with the corresponding round steel column 1;
a round steel beam connecting plate 10; the two pairs of the round steel beam connecting plates 10 (namely 4 blocks) are arranged, the round steel beam connecting plates 10 are arranged between the two outer ring plates 11 and are welded and fixed with the two outer ring plates 11, and the round steel beam connecting plates 10 are centrosymmetric with the axis of the outer ring plates 11;
a round steel diagonal member connecting plate 20; the round steel diagonal draw bar connecting plates 20 are two pairs (4), the round steel diagonal draw bar connecting plates 20 are arranged on the outer surface of the outer annular plate 11, and the round steel diagonal draw bar connecting plates 20 are centrosymmetric with the axis of the outer annular plate 11;
a T-shaped connecting plate; the T-shaped connecting plate comprises a bottom plate 23, and a middle connecting plate 24 vertical to the bottom plate 23 is arranged in the middle of the bottom plate 23;
the middle connecting plate 24 is formed by two steel plates in parallel, and a gap 25 is formed between the two steel plates;
connecting holes are arranged at corresponding positions on the round steel beam connecting plate 10, the round steel diagonal draw bar connecting plate 20 and the T-shaped connecting plate;
the round steel beam connecting plate 10 and the round steel diagonal draw bar connecting plate 20 are inserted into the gap 25 in the corresponding T-shaped connecting plate and are connected through a chemical anchor bolt 6.
The T-shaped connecting plate comprises a second T-shaped connecting plate 22 vertically connected with two ends of the round steel cross beam 2 and a first T-shaped connecting plate 21 vertically connected with two ends of the round steel diagonal draw bar 3.
Example 2: the utility model provides a connection fastening structure of steel support die carrier, this connecting fastener evenly fixes on round steel post 1 and realizes round steel post 1 and 3 fixed connection of the oblique pull rod of corresponding round steel crossbeam 2, round steel through connecting fastener, its characterized in that connecting fastener includes:
an outer ring plate 11; the number of the outer ring plates 11 is 2, the two outer ring plates 11 are sleeved on the round steel column 1, and the two outer ring plates 11 are welded and fixed with the corresponding round steel column 1;
a round steel beam connecting plate 10; the two pairs of the round steel beam connecting plates 10 (namely 4 blocks) are arranged, the round steel beam connecting plates 10 are arranged between the two outer ring plates 11 and are welded and fixed with the two outer ring plates 11, and the round steel beam connecting plates 10 are centrosymmetric with the axis of the outer ring plates 11;
a round steel diagonal member connecting plate 20; the round steel diagonal draw bar connecting plates 20 are 4 pairs (8, blocks), the round steel diagonal draw bar connecting plates 20 are arranged on the outer surfaces of the two outer ring plates 11, and the round steel diagonal draw bar connecting plates 20 are centrosymmetric with the axis of the outer ring plates 11;
a T-shaped connecting plate; the T-shaped connecting plate comprises a bottom plate 23, and a middle connecting plate 24 vertical to the bottom plate 23 is arranged in the middle of the bottom plate 23;
the middle connecting plate 24 is formed by two steel plates in parallel, and a gap 25 is formed between the two steel plates;
connecting holes are arranged at corresponding positions on the round steel beam connecting plate 10, the round steel diagonal draw bar connecting plate 20 and the T-shaped connecting plate;
the round steel beam connecting plate 10 and the round steel diagonal draw bar connecting plate 20 are inserted into the gap 25 in the corresponding T-shaped connecting plate and are connected through a chemical anchor bolt 6.
The embodiment 1 is used for a method for installing a steel support formwork for ultra-high and ultra-high concrete construction, and comprises the following steps:
firstly, mounting a round steel column with a base; the round steel columns with the bases are placed on the reinforced concrete bottom plate between the reinforced concrete shear walls and are fixedly installed on the reinforced concrete bottom plate through chemical anchor bolts, wherein the round steel columns in the transverse row direction form a cylindrical steel transverse plane, and the round steel columns in the vertical row direction form a cylindrical steel vertical plane;
secondly, mounting a round steel beam; round steel crossbeams are arranged between adjacent cylindrical steels on the transverse surfaces or the vertical surfaces of the cylindrical steels;
thirdly, mounting the round steel diagonal draw bars; on the same cylindrical steel transverse plane or cylindrical steel vertical plane, a quadrilateral structure is enclosed by adjacent and parallel round steel cross beams and the round steel columns between the adjacent and parallel round steel cross beams, and a round steel diagonal draw bar is fixedly arranged on one diagonal of the quadrilateral structure, so that the formed quadrilateral structure forms two stable triangular structures;
fourthly, mounting the I-steel lintel; an I-steel lintel is lapped on the top of the same cylindrical steel transverse surface, and an I-steel lintel lower wing plate is welded and fixed with the top end of the round steel column on the same cylindrical steel transverse surface;
the end parts of the two ends of the I-shaped steel lintel are fixedly connected with the corresponding reinforced concrete shear wall;
fifthly, mounting the I-shaped steel purlines; the I-steel purlines are uniformly distributed and overlapped on the I-steel lintel and are vertical to the I-steel lintel.
The round steel column with the base is vertically fixed on the reinforced concrete bottom plate; the transverse surfaces of the cylindrical steel formed by the round steel columns in the transverse rows are parallel to each other and have equal intervals, the transverse surfaces of the cylindrical steel formed by the round steel columns in the vertical rows are parallel to each other and have equal intervals, and the transverse surfaces of the cylindrical steel are perpendicular to the vertical surfaces of the cylindrical steel.
The horizontal plane of a round steel cross beam formed by the cylindrical steel cross beams with the same height is perpendicular to the horizontal plane of the cylindrical steel and the vertical plane of the cylindrical steel respectively, and the horizontal planes of the round steel cross beams are parallel to each other.
The method for connecting the round steel cross beam, the round steel diagonal draw bar and the round steel column is that; the connecting part of the round steel column is fixedly provided with two outer ring plates, four round steel cross beam connecting plates are fixedly arranged between the two outer ring plates, the four round steel cross beam connecting plates are centrosymmetric with the axis of the outer ring plate, one of the outer ring plates is provided with four round steel diagonal draw bar connecting plates, the round steel diagonal draw bar connecting plates are centrosymmetric with the axis of the outer ring plate, and the round steel diagonal draw bar connecting plates and the cylindrical steel connecting plates are staggered with each other;
at round steel crossbeam and round steel diagonal draw bar both ends welded fastening T type connecting plate, the link of this T type connecting plate passes through chemical crab-bolt with corresponding round steel crossbeam connecting plate and corresponding round steel diagonal draw bar connecting plate and connects the fastening (theoretically the link of T type connecting plate should be the draw-in groove structure, realize the round steel post in round steel diagonal draw bar and the round steel crossbeam connecting plate insert the draw-in groove that corresponds, the axis of round steel crossbeam and round steel diagonal draw bar all is in the coplanar, then to the realistic conditions, because this die carrier size is very big, therefore the link of T type connecting plate only sets up platelike structure, connect back round steel crossbeam, the axis of round steel diagonal draw bar can have the error of a connecting plate thickness with the axis of round steel post, this error can neglect to this overall structure, and the junction of T type connecting plate only sets up platelike structure, the preparation is simple, low cost).
The method for connecting and fixing the I-shaped steel lintel and the corresponding reinforced concrete shear wall comprises the following steps: the rear embedded plate is arranged at the joint of the reinforced concrete shear wall and is fastened on the reinforced concrete shear wall through a chemical anchor bolt, the cross section of the rear embedded plate is of an L-shaped structure, and the embedded plate connecting plate of the rear embedded plate and the web plate of the corresponding I-shaped steel lintel are connected into a whole through the chemical anchor bolt.
The construction method has the advantages that: the steel bar transverse surfaces and the cylindrical steel vertical surfaces are mutually vertical to form a three-dimensional supporting stress framework, stress main bodies (namely a single steel bar column and the same straight-line steel beam on the same surface) on the cylindrical steel transverse surfaces and the cylindrical steel vertical surfaces are of linear structures, and under the action of external pressure or tension on the whole stress framework, the corresponding stress main bodies are stretched or compressed by external force (according to the control of material mechanics, the tensile strength and the compressive strength of steel are greatly higher than the shear strength), and the shear force on the stress main bodies is basically avoided;
the structure of the embodiment is more special, because the corresponding planes are parallel to each other and the distances are equal, the whole stress framework is formed by stacking a plurality of small cube structures (cuboids or cube structures) along all directions (x, y and z axes), and the contact surface of each cube in all directions is equal and on the same line, so that when external compression or stretching external force is applied, only compression and stretching of each other exist between adjacent small cubes (namely, a round steel column is only stretched or compressed, and a round steel beam on the same straight line is only stretched or compressed), and no shearing force is applied;
the round steel diagonal draw bars are arranged on only one diagonal line in four surfaces of the small square body (the four surfaces are positioned in the corresponding transverse surface and the vertical surface of the cylindrical steel), so that the round steel diagonal draw bars are not used for designing two round steel diagonal draw bars on the two diagonal lines, materials are saved, the axis of one round steel diagonal draw bar can be ensured to be positioned in the corresponding surface, due to the size relation of the round steel diagonal draw bars, if two round steel diagonal draw bars are used, the axis of the other round steel diagonal draw bar cannot be positioned in the surface, each surface of the four surfaces is composed of two stable triangular structures, the shape of the small square body is stable corresponding to the whole stressed framework (namely the steel support formwork support of the embodiment), and if the stressed framework receives uneven compression or stretching external acting force, partial deformation of the framework can be caused (namely according to the quadrilateral structure, if two sides of the top of the quadrilateral is unevenly stressed, quadrangles can be caused), the quadrangles form a stable triangular structure due to the design of the round steel diagonal draw bars, deformation can be effectively overcome, and the round steel diagonal draw bars also have a certain auxiliary supporting function; in a similar way, if this embodiment skeleton if receive the exogenic action of moment of torsion, this moment of torsion parallel and round steel crossbeam horizontal plane, then can be on the quadrangle structure on round steel crossbeam horizontal plane design round steel diagonal draw bar can, because this embodiment mainly receive the compressive force effect and the deformation destruction of pressure in concrete construction, this structure is not designed just to this embodiment, but the principle is unanimous.
Through the design of the connecting fastener and the T-shaped connecting plate that this embodiment designed, can ensure the round steel post, correspond the round steel crossbeam and correspond round steel diagonal draw bar and theoretically be completely on same face (the axis of round steel post promptly, the axis that corresponds the round steel crossbeam and the axis of round steel diagonal draw bar all are located cylinder steel transverse plane and cylinder steel vertical plane), can not realize a large amount of round steel posts, round steel crossbeam and round steel diagonal draw bar and be located the coplanar among the prior art.
The steel bracket formwork support for the ultra-high and ultra-high concrete construction required by the construction method comprises a round steel column 1, wherein a base 15 is arranged at the bottom of the round steel column 1;
the round steel column 1 is vertically fixed on the reinforced concrete bottom plate 12; wherein the round steel columns 1 in the horizontal row direction form a cylindrical steel horizontal surface 16, and the round steel columns 1 in the vertical row direction form a cylindrical steel vertical surface 17;
at least one quadrilateral structure 18 is enclosed by the round steel crossbeam 2 and the cylindrical steel 1 on the same cylindrical steel transverse surface 16 or the same cylindrical steel vertical surface 17, a round steel diagonal draw bar 3 is arranged on one diagonal of the quadrilateral structure 18, and the end of the round steel diagonal draw bar 3 is fixed on the corresponding cylindrical steel 1;
an I-steel lintel 4 is lapped on the top of the same cylindrical steel transverse surface 16, and the lower wing plate of the I-steel lintel 4 is welded and fixed with the top end of the round steel column 1 on the same cylindrical steel transverse surface 16;
and H-shaped steel purlins 5 are laid on the upper wing plates of the H-shaped steel lintel 4, and the H-shaped steel purlins 5 are uniformly distributed and overlapped on the H-shaped steel lintel 4 and are vertical to the H-shaped steel lintel 4.
The cylindrical steel transverse surfaces 16 are parallel to each other and have equal intervals, the cylindrical steel vertical surfaces 17 are parallel to each other and have equal intervals, and the cylindrical steel transverse surfaces 16 are perpendicular to the cylindrical steel vertical surfaces 17.
The horizontal plane 19 of the round steel beam formed by the cylindrical steel beams 2 at the same height is respectively vertical to the horizontal plane 16 of the cylindrical steel and the vertical plane 17 of the cylindrical steel, and the horizontal planes 19 of the round steel beams are parallel to each other.
And connecting fasteners are arranged at the round steel cross beam 2, the round steel diagonal draw bar 3 and the corresponding round steel column 1.
The connection fastener includes:
two outer ring plates 11; the two outer ring plates 11 are sleeved on the round steel columns 1, and the two outer ring plates 11 are welded and fixed with the corresponding round steel columns 1;
four round steel beam connecting plates 10; the round steel beam connecting plate 10 is arranged between the two outer ring plates 11 and is welded and fixed with the two outer ring plates 11, and the round steel beam connecting plate 10 is centrosymmetric with the axis of the outer ring plates 11;
four round steel diagonal draw bar connecting plates 20; the steel diagonal member connecting plate 20 is arranged on one of the outer ring plates 11, and the steel diagonal member connecting plate 20 and the round steel beam connecting plate 10 are staggered with each other.
Connecting holes are uniformly distributed on the round steel cross beam connecting plate 10 and the round steel diagonal draw bar connecting plate 20;
t-shaped connecting plates (including a T-shaped connecting plate 21 and a T-shaped connecting plate two 22) are welded and fixed at two ends of the round steel cross beam 2 and the round steel diagonal draw bar 4, and the connecting ends of the T-shaped connecting plates are connected and fastened with the corresponding round steel cross beam connecting plates 10 and the corresponding round steel diagonal draw bar connecting plates 20 through chemical anchor bolts. Web plates at two ends of the I-shaped steel lintel 4 are provided with rear embedded plates 7;
the cross section of the rear embedded plate 7 is of an L-shaped structure, wherein an embedded plate connecting plate 8 of the rear embedded plate 7 is connected with a web plate of the corresponding I-shaped steel lintel 4, and the rear embedded plate 7 is fixedly connected to the corresponding reinforced concrete shear wall 13 through a chemical anchor bolt 6.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (2)
1. The utility model provides a connection fastening structure of steel support die carrier, this connecting fastener evenly fixes on round steel post (1) and realizes round steel post (1) and correspond round steel crossbeam (2), round steel diagonal draw bar (3) fixed connection through connecting fastener, its characterized in that connecting fastener includes:
an outer ring plate (11); the number of the outer ring plates (11) is 2, the two outer ring plates (11) are sleeved on the round steel column (1), and the two outer ring plates (11) are welded and fixed with the corresponding round steel column (1);
a round steel beam connecting plate (10); the pair of round steel beam connecting plates (10) is at least one, the round steel beam connecting plates (10) are arranged between the two outer ring plates (11) and are welded and fixed with the two outer ring plates (11), and the round steel beam connecting plates (10) are centrosymmetric with the axis of the outer ring plates (11);
a round steel diagonal draw bar connecting plate (20); the steel diagonal draw bar connecting plates (20) are at least one pair, the steel diagonal draw bar connecting plates (20) are arranged on the outer surface of the outer annular plate (11), and the steel diagonal draw bar connecting plates (20) are centrosymmetric with the axis of the outer annular plate (11);
a T-shaped connecting plate; the T-shaped connecting plate comprises a bottom plate (23), and a middle connecting plate (24) perpendicular to the bottom plate (23) is arranged in the middle of the bottom plate (23);
the middle connecting plate (24) is formed by two steel plates in parallel, and a gap (25) is formed between the two steel plates;
connecting holes are arranged at corresponding positions on the round steel cross beam connecting plate (10), the round steel diagonal draw bar connecting plate (20) and the T-shaped connecting plate;
the round steel beam connecting plate (10) and the round steel diagonal draw bar connecting plate (20) are inserted into the gap (25) in the corresponding T-shaped connecting plate and are connected through a chemical anchor bolt (6).
2. The connecting and fastening structure of the steel bracket formwork rack as claimed in claim 1, wherein:
the T-shaped connecting plate comprises a second T-shaped connecting plate (22) vertically connected with two ends of the round steel cross beam (2) and a first T-shaped connecting plate (21) vertically connected with two ends of the round steel diagonal draw bar (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020400148.5U CN212897449U (en) | 2020-03-25 | 2020-03-25 | Connecting and fastening structure of steel support formwork support |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020400148.5U CN212897449U (en) | 2020-03-25 | 2020-03-25 | Connecting and fastening structure of steel support formwork support |
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| CN212897449U true CN212897449U (en) | 2021-04-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482567A (en) * | 2022-01-17 | 2022-05-13 | 天元建设集团有限公司 | Reusable assembled steel support connecting device |
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2020
- 2020-03-25 CN CN202020400148.5U patent/CN212897449U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482567A (en) * | 2022-01-17 | 2022-05-13 | 天元建设集团有限公司 | Reusable assembled steel support connecting device |
| CN114482567B (en) * | 2022-01-17 | 2023-02-28 | 天元建设集团有限公司 | Reusable fabricated steel support connection device |
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