CN102322102B - Beam-passing fastener and lightweight steel construction for connecting upper layer and lower layer - Google Patents
Beam-passing fastener and lightweight steel construction for connecting upper layer and lower layer Download PDFInfo
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- CN102322102B CN102322102B CN 201110201662 CN201110201662A CN102322102B CN 102322102 B CN102322102 B CN 102322102B CN 201110201662 CN201110201662 CN 201110201662 CN 201110201662 A CN201110201662 A CN 201110201662A CN 102322102 B CN102322102 B CN 102322102B
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- press beading
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Abstract
The invention relates to a beam-passing fastener and a lightweight steel construction for connecting an upper layer and a lower layer. The plate body of the beam-passing fastener is a straight flute with evaginable plates at the two sides, the web of the plate body is provided with a vertical web stamping rib which is not communicated with the upper edge and the lower edge of the web, the side plate of the plate body is provided with a vertical side plate stamping rib which is not communicated with the upper edge and the lower edge of the side plate, the evaginable plates of the plate body are provided with vertical evaginable plate stamping ribs which are not communicated with the upper edges and the lower edges of the evaginable plates, the web is composed of an upper web and a lower web, a square connector is arranged between the upper web and the lower web, the left side and the right side of the square connector are extended with connecting plates, the connecting plates and the side plate are arranged in the same plane, and the connecting plate is also provided with a horizontal connecting plate stamping rib. The beam-passing fastener provided by the invention can cause a floor beam of the lightweight steel construction to be connected with the upper layer and the lower layer more conveniently, firmly and safely, the problem that the floor beam can not be directly connected with wall load-bearing trusses of the upper layer and the lower layer at the same time is solved, and the lightweight steel construction enhances structural stability of a lightweight steel joist house system.
Description
Technical field
The present invention relates to a kind of connector and lightweight steel construction thereof, particularly a kind of connector and lightweight steel construction thereof that is used between lightgage steel joist system house wall levels stress frame and the floor beam.
Background technology
But the lightgage steel joist building systems has light weight, anti-seismic performance is good, thickness of wall body is little, thermal and insulating performance is good, construction pollution is little, speed of application is fast, need not to touch plate, pipe line arrangement is convenient, the remaining years discarded object is few, can promote energy-conserving and environment-protective batch production production and can promote the advantage of building industry development, has therefore at home and abroad obtained using widely in the building trade in recent years.
In present lightgage steel joist building systems, body of wall truss principal and floor beam adopt two kinds of ways: 1, traditional C type light gauge cold-formed steel shape truss principal and floor beam promptly is to be body of wall truss principal and the floor beam that C type light gauge cold-formed steel shape is formed by connecting by self-tapping screw by the cross section; The shortcoming of this way is, because the width on the C type light gauge cold-formed steel shape cross section web and the edge of a wing is bigger, easily cripling takes place and reduce element bearing capacity under the axial load effect.2, closed side's square type light gauge cold-formed steel shape truss principal and floor beam promptly are to be body of wall truss principal and the floor beam that closed side's square type light gauge cold-formed steel shape is formed by connecting with self-tapping screw by the standard connector by the cross section; The advantage of this way is because square tube is the closed type steel pipe, so be difficult for taking place cripling, bearing capacity height under the axial load effect.
At present, each layer body of wall truss principal at the lightgage steel joist building systems includes body of wall sheet post, be connected between the top of body of wall sheet post on tube connector and be connected following tube connector between the bottom of body of wall sheet post, the last beam column of floor beam directly is shelved on the last tube connector of lower floor's body of wall truss principal, and the following tube connector of upper strata body of wall truss principal is pressed on the last beam column of floor beam.The shortcoming of this structure is, floor beam can't directly be connected with levels body of wall truss principal simultaneously, the last beam column that can only be floor beam rides over arbitrarily on the last tube connector of lower floor's body of wall truss principal, though this structure is easy for installation, but it is insecure, the partial pressing of floor beam is difficult for satisfying force request simultaneously, floor beam has a little less than the bearing capacity, the shortcoming of steadiness difference, and, floor beam directly rides on the last tube connector of lower floor's body of wall truss principal, because tube connector will directly bear floor beam and upper strata load, so cause floor beam easily, vibration and distortion take place in tube connector and floor plate, and destroy the flooring decorative layer thus, produce sense of insecurity.
Summary of the invention
The purpose of this invention is to provide a kind of connect levels wear beam fastener and lightweight steel construction thereof, solve between floor beam and the levels body of wall truss principal and be connected problem insecure, that floor beam partial pressing is difficult for satisfying force request, also will solve the problem that floor beam, tube connector and floor plate tremble easily and be out of shape.
For achieving the above object, the present invention adopts following technical scheme: a kind of connect levels wear the beam fastener, be the metal thin-wall plate stamping and forming, its plate body is the straight trough shape that there is outer turnover panel on both sides, the web of plate body is provided with the vertical web punching press beading of lower limb on the obstructed web, the side plate of plate body is provided with the vertical side plate punching press beading of lower limb on the obstructed side plate, the outer turnover panel of plate body is provided with the obstructed outer turnover panel vertical outer turnover panel punching press beading at edge up and down, also be distributed with screw on the plate body, it is characterized in that: described web is made up of epiplastron and bottom web, a square connector is arranged between epiplastron and the bottom web, extend on the limit, the left and right sides of square connector junction plate, and this junction plate and side plate are in the same plane, also be provided with the junction plate punching press beading of level on this junction plate, the outward flange of the obstructed junction plate of one end of junction plate punching press beading, the other end of junction plate punching press beading and side plate punching press beading intersect vertically.
Can be provided with reinforcement beading spaced apart on the folding line between the outer turnover panel of the side plate of plate body and plate body.
Described screw can be symmetrically distributed in the both sides of web punching press beading, side plate punching press beading, outer turnover panel punching press beading and junction plate punching press beading.
The cross section of described web punching press beading, side plate punching press beading, outer turnover panel punching press beading and junction plate punching press beading all can be arc.
The width of described web punching press beading, side plate punching press beading, outer turnover panel punching press beading and junction plate punching press beading can be 5mm～10mm, and the degree of depth can be 1mm～5mm.
The end of the end of the end of the end of described web punching press beading, side plate punching press beading, outer turnover panel punching press beading and junction plate punching press beading all can be at a distance of 5mm～20mm with the edge of plate body.
A kind of application connects the lightweight steel construction that the beam fastener connects of wearing of levels, comprise upper strata body of wall sheet post, lower floor's body of wall sheet post, tube connector under the body of wall sheet post of upper strata, tube connector on lower floor's body of wall sheet post, floor beam and levels connector, wherein upper strata body of wall sheet post and lower floor's body of wall sheet post include two montants and are connected two montant connectors between the montant, floor beam comprises beam column, following beam column, and be connected web member between beam column and the following beam column, it is characterized in that: described levels connector be connect levels wear the beam fastener, the montant of described upper strata body of wall sheet post is fixedlyed connected with side plate with the epiplastron of wearing in the beam fastener that is connected levels by screw, the montant of described lower floor body of wall sheet post is fixedlyed connected with side plate with the bottom web of wearing in the beam fastener that is connected levels by screw, tube connector is fixedly connected with the top of wearing the outer turnover panel in the beam fastener that is connected levels by screw under the body of wall sheet post of described upper strata, tube connector is fixedly connected with the bottom of wearing the outer turnover panel in the beam fastener that is connected levels by screw on the described lower floor body of wall sheet post, described end of going up beam column is inserted in the square connector of wearing the beam fastener that connects levels, and be clipped in the montant of upper strata body of wall sheet post and the montant of lower floor's body of wall sheet post, and under the body of wall sheet post of upper strata on tube connector and the lower floor's body of wall sheet post between the tube connector, the end of going up beam column simultaneously is also by screw and the junction plate in the beam fastener worn that is connected levels, side plate is fixedly connected.
Tube connector on tube connector, the lower floor's body of wall sheet post under described montant, the upper strata body of wall sheet post, go up beam column and following beam column the cross section all but the square and rectangular pipe of thin-walled.
The upper end of wearing the beam fastener of described connection levels can be higher than the upper surface 20mm～100mm of the floor plate that is installed on the floor beam.
Compared with prior art the present invention has following characteristics and beneficial effect: the invention goes out special connector and the method for attachment that a kind of brand-new floor beam is connected with the lightweight steel construction levels, make the floor beam of lightweight steel construction be connected convenient, firm, safety with levels, solve the problem that floor beam can't be directly be connected simultaneously with levels body of wall truss principal, also solved the shortcoming that floor beam partial pressing is difficult for satisfying force request.Described floor beam can form directly and be connected (be that the last beam column of floor beam passes wearing the beam fastener, floor beam and levels body of wall truss principal being linked together with the self-tapping screw close and firm of connection levels, make floor beam form continuous the connection with levels body of wall truss principal) by the beam fastener of wearing that connects levels with levels bearing wall truss.
Described connection levels wear the structural stability that the beam fastener has strengthened the lightgage steel joist building systems, it not only can make floor beam and levels body of wall truss principal be fastenedly connected, make the partial pressing of floor beam satisfy force request fully, and can make floor beam, tube connector and floor plate no longer take place to tremble easily, the flooring decorative layer also can not destroyed easily again, and the people who stays in simultaneously in the lightgage steel joist building systems can not produce sense of insecurity more yet.
The beam fastener of wearing of described connection levels is connected the last beam column of floor beam on the levels body of wall truss principal by the self-tapping screw close and firm, increased the last beam column of floor beam and the shearing lifting surface area of lower floor body of wall truss principal junction, overcome traditional lightgage steel joist system floor beam and can not aim at lower floor's body of wall truss principal and the local easily shortcoming of being out of shape of floor beam by lateral deflection.Simultaneously, used connect levels wear the beam fastener after, floor beam no longer is to be placed on arbitrarily on the tube connector that connects the body of wall truss, so also directly bear the upper strata load and cause the big shortcoming of floor plate degree of disturbing with regard to no longer having floor beam.
In addition, traditional structure is after installing floor plate on the floor beam, the position, hole, connection upper strata of levels connector can be blocked, and this just causes the levels connector can't connect upper strata body of wall truss principal, thereby has reduced bonding strength, stability and the safety of construction problem of levels.And the length of wearing the beam fastener of connection levels of the present invention is longer than traditional levels connector, so the upper end of levels connector exceeds floor plate 20mm～100mm, therefore after on the floor beam floor plate being installed, connect wearing the beam fastener and can also being connected with upper strata body of wall truss principal easily of levels, overcome that bonding strength between the levels body of wall truss principal is poor, the shortcoming of poor stability and working security difference.
Description of drawings
The present invention will be further described in detail below in conjunction with accompanying drawing.
Fig. 1 sees the schematic perspective view of wearing the beam fastener that connects levels from the front.
Fig. 2 sees the schematic perspective view of wearing the beam fastener that connects levels from the back side.
Fig. 3 is the schematic diagram that includes the lightgage steel joist building systems of having used the lightweight steel construction of wearing the beam fastener that connects levels.
Fig. 4 is the enlarged diagram at I place among Fig. 3.
Reference numeral: 1-web, 1.1-epiplastron, 1.2-bottom web, the 2-side plate, the outer turnover panel of 3-, 4-web punching press beading, 5-side plate punching press beading, the outer turnover panel punching press beading of 6-, the 7-screw, the square connector of 8-, the 9-junction plate, 10-junction plate punching press beading, 11-upper strata body of wall sheet post, 12-lower floor body of wall sheet post, tube connector under the body of wall sheet post of 13-upper strata, tube connector on the 14-lower floor body of wall sheet post, the 15-floor beam, 15.1-last beam column, 15.2-following beam column, 15.3-web member, 16-strengthens beading, the 17-floor plate.
The specific embodiment
Embodiment is referring to Fig. 1, shown in Figure 2, this connection levels wear the beam fastener, be metal thin-wall plate stamping and forming (being stamped to form through four bendings) by the metal foil wallboard, its plate body is the straight trough shape that there is outer turnover panel 3 on both sides, the web 1 of plate body is provided with the vertical web punching press beading 4 of lower limb on the obstructed web, the side plate 2 of plate body is provided with the vertical side plate punching press beading 5 of lower limb on the obstructed side plate, the outer turnover panel 3 of plate body is provided with the obstructed outer turnover panel vertical outer turnover panel punching press beading 6 at edge up and down, also be distributed with screw 7 on the plate body, the folding line between the side plate 2 of plate body and the outer turnover panel 3 of plate body is provided with reinforcement beading 16 spaced apart.
Described web 1 is made up of epiplastron 1.1 and bottom web 1.2, a square connector 8 is arranged between epiplastron 1.1 and the bottom web 1.2, extend on the limit, the left and right sides of square connector 8 junction plate 9, and this junction plate 9 is in the same plane with side plate 2, also be provided with the junction plate punching press beading 10 of level on this junction plate 9, the outward flange of the obstructed junction plate 9 of one end of junction plate punching press beading 10, the other end of junction plate punching press beading 10 and side plate punching press beading 5 intersect vertically.
Described junction plate punching press beading 10 and side plate punching press beading 5 have been formed the punching press beading of T font, strengthened the rigidity of wearing the beam fastener that connects levels, connect wearing on the upper chord 15.1 that the beam fastener can directly pierce into floor beam 15 of levels, and with upper strata body of wall sheet post 11, lower floor's body of wall sheet post 12, under the body of wall sheet post of upper strata on tube connector 13 and the lower floor body of wall sheet post tube connector 14 form close and firm by the screw tap screw and be connected, create special connector and method of attachment that a kind of brand-new floor beam is connected with the lightweight steel construction levels, make the floor beam of lightweight steel construction be connected convenient with levels, firmly, safety.
The distribution of described screw 7 can be calculated by finite element analysis, and in the present embodiment, screw 7 is symmetrically distributed in the both sides of web punching press beading 4, side plate punching press beading 5, outer turnover panel punching press beading 6 and junction plate punching press beading 10.The cross section of web punching press beading 4, side plate punching press beading 5, outer turnover panel punching press beading 6 and junction plate punching press beading 10 is arc.The width of web punching press beading 4, side plate punching press beading 5, outer turnover panel punching press beading 6 and junction plate punching press beading 10 is 5mm～10mm, and the degree of depth is 2mm～5mm.The end of the end of the end of the end of web punching press beading 4, side plate punching press beading 5, outer turnover panel punching press beading 6 and junction plate punching press beading 10 all with the edge of plate body at a distance of 5mm～20mm.
Referring to Fig. 1-4, this lightweight steel construction that the beam fastener connects of wearing that connects levels of having used, comprise under upper strata body of wall sheet post 11, lower floor's body of wall sheet post 12, the upper strata body of wall sheet post tube connector 14, floor beam 15 and levels connector on tube connector 13, the lower floor's body of wall sheet post, wherein upper strata body of wall sheet post 11 and lower floor's body of wall sheet post 12 include two montants and are connected two montant connectors between the montant, floor beam 15 comprise beam column 15.1, down beam column 15.2 and be connected beam column and following beam column between web member 15.3.Described levels connector be connect levels wear the beam fastener, the montant of described upper strata body of wall sheet post 11 is fixedlyed connected with side plate 2 with the epiplastron of wearing in the beam fastener 1.1 that is connected levels by screw, the montant of described lower floor body of wall sheet post 12 is fixedlyed connected with side plate 2 with the bottom web of wearing in the beam fastener 1.2 that is connected levels by screw, tube connector 13 is fixedly connected with the top of wearing the outer turnover panel 3 in the beam fastener that is connected levels by screw under the body of wall sheet post of described upper strata, tube connector 14 is fixedly connected with the bottom of wearing the outer turnover panel 3 in the beam fastener that is connected levels by screw on the described lower floor body of wall sheet post, described end of going up beam column 15.1 is inserted in the square connector 8 of wearing the beam fastener that connects levels, and be clipped in the montant of upper strata body of wall sheet post 11 and the montant of lower floor's body of wall sheet post 12, and under the body of wall sheet post of upper strata on tube connector 13 and the lower floor's body of wall sheet post between the tube connector 14, the end of going up beam column 15.1 simultaneously is also by screw and the junction plate 9 in the beam fastener worn that is connected levels, side plate 2 is fixedly connected.Tube connector 14 on tube connector 13, the lower floor's body of wall sheet post under described montant, the upper strata body of wall sheet post, the cross section of going up beam column 15.1 and following beam column 15.2 all are square and rectangular pipes of thin-walled.The upper end of wearing the beam fastener of described connection levels is higher than the upper surface 20mm～100mm of the floor plate 17 that is installed on the floor beam 15.Under described metal foil wallboard, upper strata body of wall sheet post 11, lower floor's body of wall sheet post 12, the upper strata body of wall sheet post on tube connector 13, the lower floor's body of wall sheet post material of tube connector 14 and floor beam 15 generally all adopt the structural level steel, as the cold bending thin wall hot-dip galvanizing sheet steel.
Claims (9)
- One kind connect levels wear the beam fastener, be the metal thin-wall plate stamping and forming, its plate body is the straight trough shape that there is outer turnover panel (3) on both sides, the web of plate body (1) is provided with the vertical web punching press beading (4) of lower limb on the obstructed web, the side plate of plate body (2) is provided with the vertical side plate punching press beading (5) of lower limb on the obstructed side plate, the outer turnover panel (3) of plate body is provided with the obstructed outer turnover panel vertical outer turnover panel punching press beading (6) at edge up and down, also be distributed with screw (7) on the plate body, it is characterized in that: described web (1) is made up of epiplastron (1.1) and bottom web (1.2), between epiplastron (1.1) and the bottom web (1.2) a square connector (8) is arranged, extend on the limit, the left and right sides of square connector (8) has junction plate (9), and this junction plate (9) is in the same plane with side plate (2), also be provided with the junction plate punching press beading (10) of level on this junction plate (9), the outward flange of the obstructed junction plate of one end (9) of junction plate punching press beading (10), the other end of junction plate punching press beading (10) and side plate punching press beading (5) intersect vertically.
- 2. connection levels according to claim 1 wear the beam fastener, it is characterized in that: the folding line between the outer turnover panel (3) of side plate of plate body (2) and plate body is provided with reinforcement beading (16) spaced apart.
- 3. connection levels according to claim 1 wear the beam fastener, it is characterized in that: described screw (7) is symmetrically distributed in the both sides of web punching press beading (4), side plate punching press beading (5), outer turnover panel punching press beading (6) and junction plate punching press beading (10).
- 4. connection levels according to claim 1 wear the beam fastener, it is characterized in that: the cross section of described web punching press beading (4), side plate punching press beading (5), outer turnover panel punching press beading (6) and junction plate punching press beading (10) is arc.
- 5. connection levels according to claim 1 wear the beam fastener, it is characterized in that: the width of described web punching press beading (4), side plate punching press beading (5), outer turnover panel punching press beading (6) and junction plate punching press beading (10) is 5mm～10mm, and the degree of depth is 2mm～5mm.
- 6. connection levels according to claim 1 wear the beam fastener, it is characterized in that: the end of the end of the end of described web punching press beading (4), side plate punching press beading (5), the end of outer turnover panel punching press beading (6) and junction plate punching press beading (10) all with the edge of plate body at a distance of 5mm～20mm.
- 7. an application rights requires the lightweight steel construction that the beam fastener connects of wearing of any described connection levels among the 1-6, comprise upper strata body of wall sheet post (11), lower floor's body of wall sheet post (12), tube connector (13) under the body of wall sheet post of upper strata, tube connector (14) on lower floor's body of wall sheet post, floor beam (15) and levels connector, wherein upper strata body of wall sheet post (11) and lower floor's body of wall sheet post (12) include two montants and are connected two montant connectors between the montant, floor beam (15) comprises beam column (15.1), following beam column (15.2), and be connected web member (15.3) between beam column and the following beam column, it is characterized in that: described levels connector be connect levels wear the beam fastener, the montant of described upper strata body of wall sheet post (11) is fixedlyed connected with side plate (2) with the epiplastron of wearing in the beam fastener (1.1) that is connected levels by screw, the montant of described lower floor's body of wall sheet post (12) is fixedlyed connected with side plate (2) with the bottom web of wearing in the beam fastener (1.2) that is connected levels by screw, tube connector (13) is fixedly connected with the top of wearing the outer turnover panel (3) in the beam fastener that is connected levels by screw under the body of wall sheet post of described upper strata, tube connector (14) is fixedly connected with the bottom of wearing the outer turnover panel (3) in the beam fastener that is connected levels by screw on the described lower floor body of wall sheet post, described end of going up beam column (15.1) is inserted in the square connector (8) of wearing the beam fastener that connects levels, and be clipped in the montant of upper strata body of wall sheet post (11) and the montant of lower floor's body of wall sheet post (12), and under the body of wall sheet post of upper strata on tube connector (13) and the lower floor's body of wall sheet post between the tube connector (14), the end of going up beam column (15.1) simultaneously is also by screw and the junction plate (9) in the beam fastener worn that is connected levels, side plate (2) is fixedly connected.
- 8. application according to claim 7 connects the lightweight steel construction that the beam fastener connects of wearing of levels, it is characterized in that: tube connector (14) on tube connector (13), the lower floor's body of wall sheet post under described montant, the upper strata body of wall sheet post, the cross section of going up beam column (15.1) and following beam column (15.2) all are square and rectangular pipes of thin-walled.
- 9. application according to claim 7 connects the lightweight steel construction that the beam fastener connects of wearing of levels, and it is characterized in that: the upper end of wearing the beam fastener of described connection levels is higher than the upper surface 20mm～100mm of the floor plate (17) that is installed on the floor beam (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110201662 CN102322102B (en) | 2011-07-19 | 2011-07-19 | Beam-passing fastener and lightweight steel construction for connecting upper layer and lower layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110201662 CN102322102B (en) | 2011-07-19 | 2011-07-19 | Beam-passing fastener and lightweight steel construction for connecting upper layer and lower layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102322102A CN102322102A (en) | 2012-01-18 |
| CN102322102B true CN102322102B (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110201662 Expired - Fee Related CN102322102B (en) | 2011-07-19 | 2011-07-19 | Beam-passing fastener and lightweight steel construction for connecting upper layer and lower layer |
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| CN (1) | CN102322102B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104612295B (en) * | 2014-12-25 | 2017-01-25 | 成都江河幕墙系统工程有限公司 | Structural steel keel corner connecting stamping part and corner connecting structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW482845B (en) * | 2000-07-13 | 2002-04-11 | Chi Shiu | Truss type reinforced concrete structure |
| JP2004270403A (en) * | 2003-03-12 | 2004-09-30 | Miyaji Construction & Engineering Co Ltd | Lightweight box truss system |
| CN101532310A (en) * | 2009-04-17 | 2009-09-16 | 筑巢（北京）科技有限公司 | An upper and lower layer stamping connector and its light steel structure |
| CN201391018Y (en) * | 2009-04-17 | 2010-01-27 | 筑巢（北京）科技有限公司 | Upper-lower layer punching connecting piece and lightweight steel structure thereof |
| CN202152490U (en) * | 2011-07-19 | 2012-02-29 | 筑巢（北京）科技有限公司 | Beam penetrating fastener connecting upper layer and lower layer and light steel structure of beam penetrating fastener |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008103285A1 (en) * | 2007-02-16 | 2008-08-28 | Issi Holding Company, Llc | Insulated modular building frame |
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2011
- 2011-07-19 CN CN 201110201662 patent/CN102322102B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW482845B (en) * | 2000-07-13 | 2002-04-11 | Chi Shiu | Truss type reinforced concrete structure |
| JP2004270403A (en) * | 2003-03-12 | 2004-09-30 | Miyaji Construction & Engineering Co Ltd | Lightweight box truss system |
| CN101532310A (en) * | 2009-04-17 | 2009-09-16 | 筑巢（北京）科技有限公司 | An upper and lower layer stamping connector and its light steel structure |
| CN201391018Y (en) * | 2009-04-17 | 2010-01-27 | 筑巢（北京）科技有限公司 | Upper-lower layer punching connecting piece and lightweight steel structure thereof |
| CN202152490U (en) * | 2011-07-19 | 2012-02-29 | 筑巢（北京）科技有限公司 | Beam penetrating fastener connecting upper layer and lower layer and light steel structure of beam penetrating fastener |
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| CN102322102A (en) | 2012-01-18 |
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