CN106592764A - Combined steel prop equivalent wall unit - Google Patents
Combined steel prop equivalent wall unit Download PDFInfo
- Publication number
- CN106592764A CN106592764A CN201710039515.6A CN201710039515A CN106592764A CN 106592764 A CN106592764 A CN 106592764A CN 201710039515 A CN201710039515 A CN 201710039515A CN 106592764 A CN106592764 A CN 106592764A
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- Prior art keywords
- steel
- crossbeam
- column
- wall unit
- equivalent wall
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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
- E04B1/18—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
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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
- E04B1/18—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
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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 invention discloses a combined steel prop equivalent wall unit. The combined steel prop equivalent wall unit comprises an upright post, an X-shaped supporting bracket and at least one K-type supporting bracket, and two horizontal cross beam groups, wherein every cross beam group includes three cross beams, and every cross beam is fixedly connected with the upright post and in orthogonality with adjacent cross beam; the X-type supporting bracket comprises four first diagonal brace rods which are symmetrically arranged in the same face, one end of every diagonal brace rod is connected to the middle of the upright post, and the other end is connected with a corresponding cross beam; the K-type supporting bracket is in orthogonality with the X-type supporting bracket, and comprises a vertical supporting rod and two second diagonal brace rods; the vertical supporting rod is in parallel to the upright post and both ends are respectively connected with corresponding cross beam; one end of the second diagonal brace rod is connected to the middle part of the vertical supporting rod, and the other end is connected with the upright post. Compared with the prior art, the scheme can improve the lateral stiffness, bearing capacity and stability of a building, and improve the adaptation of diversified layout of the building.
Description
Technical field
The present invention relates to construction engineering technical field, the equivalent wall unit of more particularly to a kind of composite steel tunnel support.
Background technology
Steel building is compared for traditional concrete construction, has the advantages that intensity height, shock resistance are good.Due to steel structure
Part can be produced with factory prefabricating, then transported to job site and installed, therefore can greatly reduce construction period；Meanwhile, base
In the repeatable usability of steel, the generation of building waste, more environmental protection can also be reduced using steel building.Cause
This, steel construction is able to be widely used in industrial building and civil buildings.
In prior art, because how different in nature residence model is, body of wall arranges irregularities so that the framework of existing steel construction
Post net is difficult to form the Lateral Resistant System of system, and support is difficult to find that suitable position；Further, since steel column section is more than
, often there is projection external corner in room corner in wall thickness, affects interior architecture to use function.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of equivalent wall unit of composite steel tunnel support, firm with the anti-side for improving building
Degree, limit lateral capacity and stability, and improve the adaptability to building multiformity arrangement.
Embodiments provide a kind of equivalent wall unit of composite steel tunnel support, including a root post, an X-type bracing frame
With at least one K-type bracing frame, and horizontally disposed two crossbeam groups, wherein：
Described two crossbeam groups be arranged in parallel, and each crossbeam group includes at least three road crossbeams arranged around column, per pass
Crossbeam is fixedly connected and setting orthogonal with adjacent crossbeam with column；
The X-type bracing frame include four coplanar symmetrically arranged first hounds, and per root the first hound one end with
Column middle part is connected, and the other end is connected with corresponding crossbeam；
The K-type bracing frame is located between relative twice crossbeam and setting orthogonal with the X-type bracing frame, including one
Perpendicular strut and two second hounds, the perpendicular strut be arranged in parallel with column and two ends connect respectively with corresponding crossbeam, institute
State and be connected with perpendicular strut middle part per root the second hound one end, the other end is connected with column.
Optionally, described each crossbeam group includes three road crossbeams of T-shaped setting, and the quantity of the K-type bracing frame is one
It is individual.
Optionally, described each crossbeam group includes the four road crossbeams in cross setting, and the quantity of the K-type bracing frame is
Two, described two K-type bracing frames are arranged positioned at the both sides of column and axisymmetricly respectively.
Preferably, the crossbeam is steel I-beam.
Preferably, the position of column connection corresponding with each crossbeam is respectively fixed with crossbeam connection end, the crossbeam
The cross sectional shape of connection end matches with the cross sectional shape of crossbeam.
Optionally, the column is rectangle steel tubing string, rectangular steel-tube concrete column, circular steel tubing string, round steel pipe coagulation
Earth pillar, I-shaped steel column, cross I-shaped steel and steel post or L-shaped, T-shaped, groined type abnormal shape compound section steel column.
Optionally, the column is rectangle steel tubing string or rectangular steel-tube concrete column, and the column is being connected with crossbeam
The position of end connection is provided with inner ring plate or outer ring plate；Or, the flange plate both sides of the crossbeam connection end are respectively arranged with
The thickness sum of edge of a wing side connecting plate, the width of the flange plate of the crossbeam connection end and two edge of a wing side connecting plates is not more than institute
State the section length of side of column.
Optionally, the column is circular steel tubing string or circular steel tube concrete post, and the column is being connected with crossbeam
The position of end connection is provided with inner ring plate or outer ring plate.
Optionally, the column is I-shaped steel column, cross I-shaped steel and steel post or L-shaped, T-shaped, the special-shaped combination section of groined type
Face steel column, the column is provided with diaphragm plate in the position being connected with crossbeam connection end.
Preferably, the flange plate of the per pass crossbeam is welded to connect with the flange plate of corresponding crossbeam connection end, described every
The web of road crossbeam passes through connecting plate bolt connection with the web of corresponding crossbeam connection end.
Preferably, one end that second hound is connected with column has lug, and the column and the second hound connect
There is the correspondence position of otic placode, the lug and otic placode to have through hole respectively for the position for connecing, second hound and column
By through the hinge through hole.
Preferably, the perpendicular strut passes through end-plate bolted connections, and the crossbeam and the perpendicular strut with crossbeam junction
Ribbed stiffener is provided with the web of link position.
Preferably, described first hound one end and column middle part are welded to connect, the other end and corresponding crossbeam connection end
It is welded to connect, on the crossbeam connection end and the web of the first hound link position ribbed stiffener is provided with.
Optionally, first hound is round steel pipe, rectangular steel pipe, I-steel is supported, T steel is supported, L-shaped steel
Support, flute profile bracing members, cross bracing members, antivibrator or anti-buckling support；And/or, the perpendicular strut be round steel pipe,
Rectangular steel pipe, I-steel support, T steel support, L-shaped bracing members, flute profile bracing members, cross bracing members or anti-buckling
Support；And/or, second hound be round steel pipe, rectangular steel pipe, I-steel support, T steel support, L-shaped bracing members,
Flute profile bracing members, cross bracing members, antivibrator or anti-buckling support.
In the technical scheme of the embodiment of the present invention, one end of the first hound of X-type bracing frame is connected with column middle part,
The other end connects with corresponding crossbeam, and the perpendicular strut two ends of K-type bracing frame connect respectively with corresponding crossbeam, the second hound one
End is connected with perpendicular strut middle part, and the other end is connected with column, so, when building is acted on by the side force of horizontal direction, X-type
Support and K-type bracing frame can column carry out lateral support, improve the anti-side rigidity of building, limit lateral capacity and stable
Property, and projection external corner is solved the problems, such as, disclosure satisfy that the flexible arrangement of construction wall.
Description of the drawings
Fig. 1 is the structural representation of the equivalent wall unit of one embodiment of the invention composite steel tunnel support；
Fig. 2 is the structural representation of the equivalent wall unit of another embodiment of the present invention composite steel tunnel support；
Fig. 3 is the partial structural diagram one of the equivalent wall unit of embodiment of the present invention composite steel tunnel support；
Fig. 4 is the partial structural diagram two of the equivalent wall unit of embodiment of the present invention composite steel tunnel support；
Fig. 5 is the partial structural diagram three of the equivalent wall unit of embodiment of the present invention composite steel tunnel support；
Fig. 6 is the partial structural diagram four of the equivalent wall unit of embodiment of the present invention composite steel tunnel support.
Reference：
1- columns
2- crossbeams
31- erects strut
The hounds of 32- second
33- end plates
4- crossbeams connection end
5- edges of a wing side connecting plate
6- connecting plates
7- connection members
71- lugs
72- otic placodes
73- bearing pins
8- ribbed stiffeners
The hounds of 9- first
Specific embodiment
It is so as to improve the limit lateral capacity and stability of building and many to building in order to improve the anti-side rigidity of building
The adaptability of opposite sex arrangement, embodiments provides a kind of equivalent wall unit of composite steel tunnel support.For make the purpose of the present invention,
Technical scheme and advantage are clearer, and the present invention is described in further detail by the following examples.
As shown in figure 1, the equivalent wall unit of composite steel tunnel support provided in an embodiment of the present invention, including 1, X of a root post
Type bracing frame and at least one K-type bracing frame, and horizontally disposed two crossbeam groups, wherein：
Two crossbeam groups be arranged in parallel, and each crossbeam group includes at least three road crossbeams 2 arranged around column 1, and per pass is horizontal
Beam 2 be fixedly connected with column 1 and with the adjacent orthogonal setting of crossbeam 2；
X-type bracing frame includes four coplanar symmetrically arranged first hounds 9, and per the one end of the first hound of root 9 with it is vertical
The middle part of post 1 is connected, and the other end is connected with corresponding crossbeam 2；
K-type bracing frame is located between relative twice crossbeam 2 and setting orthogonal with X-type bracing frame, including a perpendicular strut
31 and two second hounds 32, perpendicular strut 31 be arranged in parallel with column 1 and two ends connect respectively with corresponding crossbeam 2, per root
The one end of second hound 32 is connected with the middle part of perpendicular strut 31, and the other end is connected with column 1.
In the technical scheme of the embodiment of the present invention, one end and the middle part of column 1 of the first hound 9 of X-type bracing frame connect
Connect, the other end connects with corresponding crossbeam 2, the two ends of perpendicular strut 31 of K-type bracing frame connect respectively with corresponding crossbeam 2, second
The one end of hound 32 is connected with the middle part of perpendicular strut 31, and the other end is connected with column 1, so, in building the side of horizontal direction is subject to
The masterpiece used time, X-type bracing frame and K-type bracing frame can column 1 carry out lateral support, improve the anti-side rigidity of building, from
And improve the limit lateral capacity and stability of building.Additionally, can also avoid room using the equivalent wall unit of the composite steel tunnel support
Corner there is projection external corner, therefore, it is possible to meet the flexible arrangement needs of construction wall.
As shown in figure 1, in a preferred embodiment of the invention, each crossbeam group includes that three roads of T-shaped setting are horizontal
Beam 2, the quantity of K-type bracing frame is one.Now, the equivalent wall unit of composite steel tunnel support integrally T-shaped setting, the combination of the form
The equivalent wall unit of bracing members can be applicable at the corner of the exterior wall side built.As shown in Fig. 2 being preferable to carry out in the another of the present invention
In example, each crossbeam group includes the four road crossbeams 2 in cross setting, and the quantity of K-type bracing frame is two, and two K-types are supported
Frame is arranged positioned at the both sides of column 1 and axisymmetricly respectively.Now, the equivalent wall unit of composite steel tunnel support integrally sets in cross
Put, the equivalent wall unit of composite steel tunnel support of the form can be applicable at the corner of building interior partition wall.
As shown in figure 4, in one particular embodiment of the present invention, crossbeam 2 is steel I-beam.I-shaped gooseneck is ensureing
The consumption of steel and the deadweight of steel construction can be reduced while preferable bearing strength, so as to reduces cost.
As shown in Figures 3 and 4, in a preferred embodiment of the invention, the position of the connection corresponding with each crossbeam 2 of column 1 point
Crossbeam connection end 4 is not fixed with, cross sectional shape and the cross sectional shape of crossbeam 2 of crossbeam connection end 4 match.Crossbeam connection end 4
Setting cause that connection between column 1 and crossbeam 2 is more convenient, be easily achieved, and bonding strength is also higher.
The concrete form of column is not limited, for example can for rectangular steel pipe post, rectangular steel-tube concrete column, circular steel tubing string,
Circular steel tube concrete post, I-shaped steel column, cross I-shaped steel and steel post or L-shaped, T-shaped, groined type abnormal shape compound section steel column etc.,
Can be selected according to practical situation in construction.
Column can determine with the connecting node concrete form of crossbeam connection end according to the cross sectional shape of column.The present invention's
In one specific embodiment, column 1 is rectangle steel tubing string, and the flange plate both sides of crossbeam connection end 4 are respectively arranged with edge of a wing side company
Fishplate bar 5, the setting of edge of a wing side connecting plate 5 ensure that the power of crossbeam 2 is effectively passed on column 1, and now column 1 can be without setting
Interior diaphragm plate is put, node way is simple, and beneficial to interior concrete perfusion, now, the width of the flange plate of crossbeam connection end 4 and two
The thickness sum of individual edge of a wing side connecting plate 5 need to be not more than the section length of side of column 1, so ensure that the company of crossbeam 2 and column 1
Connect is not affected by size, so as to improve the efficiency of assembling of assembling type steel structure.Or, by connecting in column and crossbeam connection end
The position for connecing arranges inner ring plate or outer ring plate, also can be connected with crossbeam connection end reliable fixed by column and have the power of crossbeam
Effect is delivered on column.When concrete is perfused with rectangular steel pipe column, the column is rectangular steel-tube concrete column, rectangle
Steel core concrete column can further improve the intensity and bearing capacity of column or even steel construction as column.
In an alternative embodiment of the invention, column is circular steel tubing string, and column sets in the position being connected with crossbeam connection end
It is equipped with inner ring plate or outer ring plate.Inner ring plate or outer ring plate are arranged on column can further improve the intensity of post or even steel construction
And bearing capacity.Wherein, the column in the embodiment can be also circular steel tube concrete post, that is, be perfused with the circular steel of concrete
Tubing string.
In still another embodiment of the process, column is I-shaped steel column, cross I-shaped steel and steel post or L-shaped, T-shaped, groined type
Special-shaped compound section steel column, column is provided with diaphragm plate in the position being connected with crossbeam connection end.According to reality in the embodiment
Construction environment selects the setting of suitable column, diaphragm plate further to improve the intensity of post or even steel construction and carry energy
Power.
As shown in figure 4, in a preferred embodiment of the invention, the flange plate of per pass crossbeam 2 and corresponding crossbeam connection end 4
Flange plate be welded to connect, the web of the web of per pass crossbeam 2 and corresponding crossbeam connection end 4 passes through the bolt connection of connecting plate 6.
So, ensure that being rigidly connected for crossbeam 2 and crossbeam connection end 4 is strong with bolted dual interconnection function by being welded to connect
Degree, so as to improve the structural strength of combination steel construction.
As shown in fig. 6, the second hound 32 is connected with column 1 by connection member 7, the second hound 32 connects with column 1
The one end for connecing has lug 71, and the position that column 1 is connected with the second hound 32 has the right of otic placode 72, lug 71 and otic placode 72
Position is answered to have respectively through hole (not shown), the second hound 32 is with column 1 by cutting with scissors through the bearing pin 73 through hole
Connect.Using the technical scheme so that the second hound 32 is easy with the attended operation of column 1, be easy to construction, while using bearing pin
It is hinged less demanding to assembly precision, and the structure of K-type bracing frame can be voluntarily finely tuned according to construction requirement, improves assembling effect
Rate.
As shown in Figure 5 and Figure 6, can pass through between the first hound 9 and crossbeam 2 and between the first hound 9 and column 1
Welding link, it is easy to operate and connect firm, so as to improve the reliability of the equivalent wall unit of composite steel tunnel support, and crossbeam 2 and the
Ribbed stiffener 8 is provided with the web of the link position of one hound 9, the structural strength of crossbeam 2 so can be further improved.Perpendicular support
By the bolt connection of end plate 33, and also be able to can set on crossbeam 2 and the web of the link position of perpendicular strut 31 between bar 31 and crossbeam 2
Put ribbed stiffener 8.
In embodiments of the present invention, the concrete form of the first hound, perpendicular strut and the second hound is not limited, for example can be with
For round steel pipe, rectangular steel pipe, I-steel support, T steel support, L-shaped bracing members, flute profile bracing members, cross bracing members,
Antivibrator or anti-buckling support.Antivibrator or anti-buckling support are propped up by installing sinker in its structure when steel is combined
When supportting equivalent wall unit by impact shock, the structural damping of the first hound, perpendicular strut or the second hound can be increased,
The vibrational energy that impact is produced is consumed, so as to improve the anti-seismic performance of the equivalent wall unit of composite steel tunnel support.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (14)
1. the equivalent wall unit of a kind of composite steel tunnel support, it is characterised in that including a root post, an X-type bracing frame and at least
Individual K-type bracing frame, and horizontally disposed two crossbeam groups, wherein：
Described two crossbeam groups be arranged in parallel, and each crossbeam group includes at least three road crossbeams arranged around column, per pass crossbeam
It is fixedly connected with column and setting orthogonal with adjacent crossbeam；
The X-type bracing frame includes four coplanar symmetrically arranged first hounds, and per root the first hound one end and column
Middle part is connected, and the other end is connected with corresponding crossbeam；
The K-type bracing frame is located between relative twice crossbeam and setting orthogonal with the X-type bracing frame, including a perpendicular support
Bar and two second hounds, the perpendicular strut be arranged in parallel with column and two ends connect respectively with corresponding crossbeam, described every
Root the second hound one end is connected with perpendicular strut middle part, and the other end is connected with column.
2. the equivalent wall unit of composite steel tunnel support according to claim 1, it is characterised in that described each crossbeam group include be in
Three road crossbeams of T-shaped setting, the quantity of the K-type bracing frame is one.
3. the equivalent wall unit of composite steel tunnel support according to claim 1, it is characterised in that described each crossbeam group include be in
Four road crossbeams of cross setting, the quantity of the K-type bracing frame is two, and described two K-type bracing frames are located at respectively column
Both sides and axisymmetricly arrange.
4. the equivalent wall unit of composite steel tunnel support according to claim 1, it is characterised in that the crossbeam is steel I-beam.
5. the equivalent wall unit of composite steel tunnel support according to claim 4, it is characterised in that the column and each crossbeam pair
The position that should connect is respectively fixed with crossbeam connection end, the cross sectional shape of the crossbeam connection end and the cross sectional shape phase of crossbeam
Match somebody with somebody.
6. the equivalent wall unit of composite steel tunnel support according to claim 5, it is characterised in that the column is rectangular steel pipe
Post, rectangular steel-tube concrete column, circular steel tubing string, circular steel tube concrete post, I-shaped steel column, cross I-shaped steel and steel post or L
Shape, T-shaped, groined type abnormal shape compound section steel column.
7. the equivalent wall unit of composite steel tunnel support according to claim 6, it is characterised in that the column is rectangle steel tubing string
Or rectangular steel-tube concrete column, the column is provided with inner ring plate or outer ring plate in the position being connected with crossbeam connection end；
Or, the flange plate both sides of the crossbeam connection end are respectively arranged with edge of a wing side connecting plate, the flange plate of the crossbeam connection end
Width and the thickness sum of two edge of a wing side connecting plates be not more than the section length of side of the column.
8. the equivalent wall unit of composite steel tunnel support according to claim 6, it is characterised in that the column is circular steel tubing string
Or circular steel tube concrete post, the column is provided with inner ring plate or outer ring plate in the position being connected with crossbeam connection end.
9. the equivalent wall unit of composite steel tunnel support according to claim 6, it is characterised in that the column is I-steel
Post, cross I-shaped steel and steel post or L-shaped, T-shaped, groined type abnormal shape compound section steel column, the column is being connected with crossbeam connection end
Position be provided with diaphragm plate.
10. the equivalent wall unit of composite steel tunnel support according to claim 5, it is characterised in that the edge of a wing of the per pass crossbeam
Plate is welded to connect with the flange plate of corresponding crossbeam connection end, the abdomen of the web of the per pass crossbeam and corresponding crossbeam connection end
Plate passes through connecting plate bolt connection.
The equivalent wall unit of 11. composite steel tunnel supports according to claim 1, it is characterised in that second hound with it is vertical
One end of post connection has lug, and the position that the column is connected with the second hound has otic placode, the lug and otic placode
Correspondence position has respectively through hole, and second hound is with column by through the hinge through hole.
The equivalent wall unit of 12. composite steel tunnel supports according to claim 1, it is characterised in that the perpendicular strut connects with crossbeam
Place is met by end-plate bolted connections, and ribbed stiffener is provided with the crossbeam and the web of the perpendicular strut link position.
The equivalent wall unit of 13. composite steel tunnel supports according to claim 5, it is characterised in that described first hound one end
It is welded to connect with column middle part, the other end is welded to connect with corresponding crossbeam connection end, the crossbeam connection end and described first
Ribbed stiffener is provided with the web of hound link position.
The equivalent wall unit of 14. composite steel tunnel supports according to any one of claim 1～13, it is characterised in that described first
Hound is round steel pipe, rectangular steel pipe, I-steel support, T steel support, L-shaped bracing members, flute profile bracing members, cross
Bracing members, antivibrator or anti-buckling support；And/or, the perpendicular strut is round steel pipe, rectangular steel pipe, I-steel are supported,
T steel support, L-shaped bracing members, flute profile bracing members, cross bracing members or anti-buckling support；And/or, second diagonal brace
Bar is round steel pipe, rectangular steel pipe, I-steel support, T steel support, L-shaped bracing members, flute profile bracing members, cross steel
Support, antivibrator or anti-buckling support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039515.6A CN106592764A (en) | 2017-01-18 | 2017-01-18 | Combined steel prop equivalent wall unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039515.6A CN106592764A (en) | 2017-01-18 | 2017-01-18 | Combined steel prop equivalent wall unit |
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| CN201710039515.6A Pending CN106592764A (en) | 2017-01-18 | 2017-01-18 | Combined steel prop equivalent wall unit |
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| CN110374261A (en) * | 2019-08-05 | 2019-10-25 | 深圳市三鑫科技发展有限公司 | The open column of anti-buckling unstability |
| CN110790116A (en) * | 2019-12-02 | 2020-02-14 | 清华大学 | Coal mine vertical shaft lifting system and derrick thereof |
| CN111851740A (en) * | 2020-08-24 | 2020-10-30 | 汉尔姆建筑科技有限公司 | Supporting component of steel structure |
| CN115506480A (en) * | 2022-10-08 | 2022-12-23 | 安徽富煌钢构股份有限公司 | Bottom layer frame of light steel assembled house |
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| CN107620500A (en) * | 2017-10-26 | 2018-01-23 | 哈尔滨工业大学 | A kind of H c-type assembling type nodes applied to single-layer steel structure cooling tower |
| CN107620500B (en) * | 2017-10-26 | 2024-02-09 | 哈尔滨工业大学 | H-C type assembled node applied to single-layer steel structure cooling tower |
| CN110374261A (en) * | 2019-08-05 | 2019-10-25 | 深圳市三鑫科技发展有限公司 | The open column of anti-buckling unstability |
| CN110790116A (en) * | 2019-12-02 | 2020-02-14 | 清华大学 | Coal mine vertical shaft lifting system and derrick thereof |
| CN111851740A (en) * | 2020-08-24 | 2020-10-30 | 汉尔姆建筑科技有限公司 | Supporting component of steel structure |
| CN115506480A (en) * | 2022-10-08 | 2022-12-23 | 安徽富煌钢构股份有限公司 | Bottom layer frame of light steel assembled house |
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