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WO2007051974A1 - Dispositif pour raccorder les composants d’un cadre de construction - Google Patents

Dispositif pour raccorder les composants d’un cadre de construction Download PDF

Info

Publication number
WO2007051974A1
WO2007051974A1 PCT/GB2006/003979 GB2006003979W WO2007051974A1 WO 2007051974 A1 WO2007051974 A1 WO 2007051974A1 GB 2006003979 W GB2006003979 W GB 2006003979W WO 2007051974 A1 WO2007051974 A1 WO 2007051974A1
Authority
WO
WIPO (PCT)
Prior art keywords
framework
connector
connector means
members
another
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB2006/003979
Other languages
English (en)
Inventor
Gary Simmons
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WILLIAM HARE Ltd
Original Assignee
WILLIAM HARE Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WILLIAM HARE Ltd filed Critical WILLIAM HARE Ltd
Publication of WO2007051974A1 publication Critical patent/WO2007051974A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403Connection details of the elongated load-supporting parts
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403Connection details of the elongated load-supporting parts
    • E04B2001/2409Hooks, dovetails or other interlocking connections
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403Connection details of the elongated load-supporting parts
    • E04B2001/2415Brackets, gussets, joining plates
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403Connection details of the elongated load-supporting parts
    • E04B2001/2448Connections between open section profiles
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403Connection details of the elongated load-supporting parts
    • E04B2001/2457Beam to beam connections

Definitions

  • the present invention relates to building framework assemblies and to connector assemblies for use in the construction of building frameworks as well as to buildings comprising such assemblies and to methods of construction.
  • a known method of construction requires a beam to be moved towards its desired location by a crane and for a construction worker to manually guide the beam to its final position. The beam must then be secured in place by welding or bolting it to a column or another beam before it can be released by the crane .
  • the present invention aims to address at least one disadvantage associated with the prior art whether discussed herein or otherwise.
  • a building framework assembly comprising first and second framework members and having locating means, wherein the • locating means is arranged to guide the framework members to a- : connected position, as one is moved towards the other to produce a building framework,- and . wherein the locating means is such that it can retain the framework members substantially in position relative , to one another .
  • the -locating means is such that, in use, the framework members are automatically located in a connected position as one is moved towards the other.
  • the locating means comprises a connector means of the first framework member, a connector means of the second framework member and a guide means.
  • the locating means comprises a guide means of one of the framework members .
  • the building framework assembly comprises first and second framework members comprising first and second connector means respectively with at least one of said framework members comprising guide means, wherein: the first framework member is arranged to be installed to form part of a building framework prior to the second; the guide means is arranged to guide the connector means towards a connected configuration with one another when the second framework member is moved into position relative to the first; and the connector means are arranged such that once in the connected configuration they can retain the framework members substantially in position relative to one another.
  • the connector means are arranged such that, once in the connected configuration, they can retain the framework members substantially in position until the framework members are secured to one another at a later time.
  • the connector means themselves may thus be such that they do not rigidly secure the framework members to one another but ,-form ' - a sufficiently rigid connection to resist temporary 'construction loads such as wind or gravity forces .
  • connected framework members may be secured to one another with securement means for example bolts, to form a substantially rigid structure.
  • the connector means are arranged to retain the framework members in position such that a small degree of relative movement is permitted.
  • the connector means may thus be arranged to accommodate manufacturing tolerances . Accordingly, in use, connected framework members may be able to move to their final positions as they are secured to one another.
  • the connector means are arranged such that, in use, gravity assists to maintain them in the connected configuration once they have been correctly positioned relative to one another.
  • the framework assembly may further comprise retaining means for retaining the framework members in position until they are secured with securement means.
  • the retaining means may for example comprise a clip, for example a spring clip, or strap which may pass around the framework members and/or connecting means. The retaining means may thus prevent the framework members from being disconnected if knocked, for example by being caught by a part of a crane .
  • the connector means and guide means are arranged such that, in use, gravity can assist to locate the connector means in the- connected configuration.
  • the first framework member may comprise a body comprising a column.
  • the first framework member may comprise a body comprising a beam, preferably a primary beam.
  • the second framework member suitably comprises a body comprising a beam.
  • the first framework member comprises a body comprising a column
  • the second framework member preferably comprises a body comprising a primary beam.
  • the first framework member comprises a body comprising a primary beam
  • the second framework member preferably comprises a body comprising a secondary beam.
  • the column and/or beam(s) comprise load bearing bodies.
  • the column and/or beam(s) comprise steel .
  • Each connector means may comprise receiving means arranged to receive securement means, suitably a bolt, such that the connector means and thus framework members can be 5 secured to one another.
  • the bodies of the framework members may comprise receiving means arranged to receive securement means, suitably a bolt, such that the framework members can be secured to one another.
  • one of the first and second connector means comprises a receptacle and the other connector means comprises a connector part arranged to locate within said receptacle.
  • the first framework member comprises said receptacle.
  • the first connector means comprises, a receptacle which comprises an opening which is arranged. to receive a connector part of the second connector means, and which is orientated such that it faces upwardly when the first
  • framework member is installed in a building framework.
  • the framework member comprising the connector means which comprises the receptacle further comprises the guide means.
  • the first framework member 25 comprises the guide means.
  • one of the first and second framework assemblies comprises a connector assembly which provides connector means.
  • said connector assembly defines a 30 receptacle which comprises the connector means of said framework assembly.
  • the first framework member comprises said connector assembly.
  • one of the first and second framework assemblies, preferably the first comprises a connector assembly which provides guide means and connector means.
  • the connector means and guide means are integral .
  • the guide means may comprise a part of the connector means.
  • the guide means comprises one or more guiding surfaces for guiding the connector means . towards the connected configuration.
  • the guide means is formed integrally : with a receptacle of a connector means.
  • the guide means may for example comprise a mouth to the receptacle.-
  • the guide means comprises a mouth which narrows towards-, the. receptacle . '
  • the first framework member comprises the guide means.
  • the guide means comprises an opening which is arranged to face upwardly in use.
  • the first and second framework members comprise first and second support surfaces respectively arranged to abut one another when the framework members are connected.
  • the support surfaces comprise part of the connecting means.
  • the support surfaces are arranged such that they can bear the weight of the second framework member when it is connected to the first.
  • the support surface of one of the framework members comprises part of a connector assembly.
  • the support surface of the other of the framework members comprises part of a body of the framework member .
  • the connector .part of the connector means . which -is arranged . to be guided into a receptacle of the other connector means by the guide means may comprise- a bolt extending from the body of the framework member....
  • the second connector means comprises the connector part .
  • The. body suitably comprises a beam...
  • the connector part of the connector means which is arranged to be guided into a receptacle of the other connector means by the guide means may. comprise a part of a body of a framework member which comprises a beam.
  • the second connector means comprises the connector part.
  • the connector part may comprise an end part of an "I" beam where the lower arm of the "I” is removed at the end such that the beam has a "T” shaped cross-section at its end. The leg of the "T” may thus form the connector part .
  • the guide means of a first framework member and a connector means associated therewith may comprise two opposed bent plates arranged to define a receptacle, which comprises generally W Y" shaped channel, therebetween.
  • the connector means of the second framework member suitably comprises a connector part comprising the downwardly extending leg of a part of the second framework member. In use, the connector part is lowered into the receptacle from above. Thus, if the connector part is not correctly aligned with the receptacle it may be guided by the sloping sides of the guide means into the receptacle and thus can be located into position without manual manipulation.
  • each of the connector means comprises apertures arranged to align when the connectors are in the retaining position such that bolts can be passed therethrough to secure the framework members in position to form a . permanent building structure .
  • the connector of the first: framework member and the guide means associated therewith may comprise a funnel shaped receptacle.
  • the funnel shaped receptacle comprises a conical funnel .
  • the connector means of the second framework member suitably comprises a connector part which suitably comprises a bolt .
  • the bolt may pass through an aperture in the body of said other framework member. In use, the bolt may be guided into position towards the stem of the funnel by the wall of the cone section of the funnel as the framework member is lowered into place. The bolt may then drop into place in the stem section such that it retains the framework members in position.
  • the framework members may be secured to one another with bolts to form a permanent building structure.
  • the "loose" connection formed before bolts are installed may be sufficient to hold the framework members in position such that they can be positioned and left whilst other components are positioned and do not need to be immediately bolted to one another.
  • the guide means and connector means may also cause the framework members to be connected substantially automatically when the framework members are moved toward one another .
  • a connector assembly for use with a body of a framework member, wherein the connector assembly comprises a connector means for co-operating with a further connector means of a further framework member such that the connector means can be placed in a connected configuration in which they can retain the framework members in position relative to one another and wherein the connector assembly further comprises guide means for guiding the connector means towards a connected configuration when the framework members are moved into position relative to one another and wherein once in the connected configuration the connector means can retain the framework members substantially in position relative to one another .
  • the connector assembly may comprise any feature as described in relation to a connector assembly of the first aspect.
  • a third aspect of the present invention there is provided a method of assembling a building framework, wherein the method comprises connecting first and second framework members together using locating means such that 5 the framework members are automatically located in substantially the correct position relative to one another as they are brought towards one another and can be retained in that position by the locating means until they are secured to each other. 10
  • the correct position of the framework members corresponds to a connected position.
  • connection formed by the locating means is 15 sufficiently strong to withstand .temporary . construction
  • the framework members may.-thus be held connected
  • the locating means comprises a connector means of the first framework member, a connector means of the second framework member and guide means .
  • the locating means comprises guide means of one of the framework members .
  • the method comprises: installing a first framework member comprising a first connector means to form part of a building framework; moving a second framework member comprising a second connector means into
  • the method further comprises the step of
  • the securement step comprises bolting the framework . members together.
  • the method comprises assembling a building 15.! framework using a frame assembly according to the first ' . aspect .
  • The. method may comprise any feature _ -as ⁇ described in relation to the first aspect. 20
  • the method may comprise the use of a connector assembly according to the second aspect .
  • a building comprising a framework assembly according to the first aspect and/or a connector assembly according to the second aspect and/or which is constructed according to the method of the third aspect .
  • Figure 1 is a cross-sectional view showing a framework assembly
  • Figure 2 is a perspective view showing a connector assembly used in the arrangement of Figure 1 and including some hidden detail;
  • Figure 3 is a perspective view showing an alternative embodiment of a framework assembly.
  • a building framework assembly 1 comprises a first framework member 10 which comprises* a body 11 which 'comprises an "I" beam which forms, a column of a building framework. This column is connected to the foundations of a building structure (not shown) t .such that it extends generally upwardly.
  • the assembly 1 further comprises a second framewprk member 1 40 which comprises a body 41 which comprises an "I" beam which forms a primary beam of a building framework.
  • the second framework member 40 is arranged to be connected to the first framework member 10.
  • the first framework member 10 comprises connector means 20 and guide means 30 and the second framework member 40 comprises connector means 50 for co-operating therewith.
  • the connector and guide means 20, 30 of the first framework member 10 are best illustrated by Figure 2.
  • the guide means 30 and connector means 20 are provided by a connector assembly 2OA which comprises a block 21 having a flange 22.
  • the flange 22 which is connected to the body 11 by bolts (not shown) .
  • An upper face 23 of the block 21 is arranged to provide a support surface of the connector means 20 for supporting the lower wall 52 of the body 41 which forms a support surface of the connector means 50 of the second framework member 40.
  • the connector means 20 comprises a receptacle 24 for receiving a connector part 51 of the connector means 50 of the second framework member 40.
  • the connector part 51 of the second framework member 40 comprises a- bolt and the receptacle 24 of the connector comprises a stem portion of a funnel arranged to receive the bolt such that- it can move no more than 1 or .2mm relative to the axis of- the stem.
  • the guide means 30 Located between .the.-receptacle 24 and upper face 23. of the block 21 is the guide means 30.
  • the guide means comprises the cone portion -of 1 a funnel and this provides a mouth; 31 which narrows towards the receptacle 24.
  • the guide means 30 thus comprises a continuation of the receptacle 24.
  • the second framework member 40 can be lifted generally into position with a crane and located such that its connector means 50 overlies the connector means 30 of the first framework member 10.
  • the second framework member 40 can then be lowered into position (as illustrated by arrow A) such that the connector part 51 engages the guide means 30 and is directed towards the receptacle 24 such that the second framework member 40 is automatically located in the desired position relative to the first 10.
  • the framework members 10, 40 are located such that their connector means 20, 50 are in a connected configuration they may be held in a sufficiently fixed position relative to one another that other construction operations can be performed without securing them to one another.
  • the bodies 11 and 41 of the framework members 10, 40 are secured to one another by passing bolts (not shown) through a wall 12 of the first framework member and a flange 42 of the second framework member 40.
  • the framework members prior to securement with bolts the framework members are retained in position relative to one another by a retaining means comprising a metal- clip passing around the framework members as well as by the connecting means. Though not structural this retaining means may prevent a crane dislodging the framework members and may provide a further safety feature .
  • Figure 3 illustrates " an alternative embodiment of a framework assembly 101.
  • the general principles are the same but the connector means 120, 150 of this arrangement may be more suitable for connecting a secondary beam to a primary beam whereas that of Figures 1 and 2 is more appropriate for connecting a primary beam to a column.
  • the first framework member 110 of this embodiment comprises a body 111 which comprises and "I" beam which comprises a primary beam of a building framework.
  • a second framework member 140 which is arranged to be connected to this first framework member 110 comprises a body 141 comprising an "I" beam which comprises a secondary beam of a building framework.
  • the first framework member 110 further comprises a connector assembly 120A which comprises connector means 120.
  • the connector assembly 120A comprises opposed metal plates 121, 122 arranged to define a generally "Y" shaped channel therebetween.
  • the connector assembly 120A also comprises guide means 140.
  • the metal plates 121, 122 each comprise a generally horizontally extending upper wall sections 123. These are arranged to provide a supporting surface for supporting an upper wall section 152 of the body 141 which forms supporting surface of the second framework member 140. Thus, when the connector means are located in the retaining configuration the supporting surfaces support the weight of the second framework member 140.
  • Each of the metal plates 121, 122 further comprises' a generally vertically extending wall 124, arranged to define a channel therebetween which- .provides a receptacle 125 for receiving a connector part of the second framework member 140.
  • Located between the upper and lower wall sections 123, 124 of each of the plates 121, 122 is a wall section 131 which provides a transition from the vertical wall direction to the horizontal wall direction. These wall sections 131 comprise the guide means 130.
  • the connector means 150 of the second framework member 140 comprises an end part of the body 141.
  • a part of a lower wall section of the body 141 is removed such that the body 141 comprises a "T" rather than an "I" cross section at it's end.
  • the downwardly depending wall section 153 thus serves as a connector part .
  • the wall sections 131 effectively act as a funnel guiding the wall section 153 of the second framework member 140 into the receptacle channel 135.
  • the connector means of the first framework member 110 and second framework member 140 each comprise apertures 160, 170 which are arranged to align when the framework members 110,140 are correctly positioned relative to , one another. Bolts (not shown) can then be passed through these apertures to secure the framework members in position.
  • the upper wall 112 of the body 111 of the first framework member 110 also serves to some 'degree as a guide means as does the upper wall 152 of -the body 141 of the second framework member 140.
  • the framework members can be moved in position such that edges of these walls 112, 142 but against each other to help to define the framework members correct relative positions.
  • framework assemblies according to the present invention may allow safer and/or more efficient construction of building structures.
  • the invention is not restricted to the details : of .the. foregoing, embodiment (s) .
  • the invention extends to any novel ' -' one,- or any novel combination, of x the- features disclosed in this specification (including any accompanying claims, abstract and drawings) , or to any novel one, or any novel combination, of the steps of any method or process so disclosed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

La présente invention vise des ensembles cadre de construction (1) comprenant des premier et deuxième organes de cadre (10, 40) et possédant un moyen de positionnement, ce dernier étant agencé pour guider les organes de cadre (10, 40) jusqu'à une position reliée, lorsque l’un est déplacé vers l’autre pour réaliser un cadre de construction. Ledit moyen de positionnement est capable de retenir les organes de cadre (10, 40) sensiblement à leur place l’un par rapport à l’autre. L’invention concerne également des ensembles raccord et des structures et procédés de construction employant lesdits ensembles.
PCT/GB2006/003979 2005-11-03 2006-10-27 Dispositif pour raccorder les composants d’un cadre de construction Ceased WO2007051974A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0522553.7 2005-11-03
GB0522553A GB2431973B (en) 2005-11-03 2005-11-03 Improvements in and relating to construction

Publications (1)

Publication Number Publication Date
WO2007051974A1 true WO2007051974A1 (fr) 2007-05-10

Family

ID=35516363

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2006/003979 Ceased WO2007051974A1 (fr) 2005-11-03 2006-10-27 Dispositif pour raccorder les composants d’un cadre de construction

Country Status (3)

Country Link
GB (1) GB2431973B (fr)
MY (1) MY147250A (fr)
WO (1) WO2007051974A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102443141A (zh) * 2010-10-15 2012-05-09 海洋王照明科技股份有限公司 金属卟啉-喹喔啉有机半导体材料及其制备方法和应用
RU2495982C1 (ru) * 2012-03-20 2013-10-20 Всеволод Эдуардович Глуховцев Узел соединения стойки фахверка с торцевым ригелем покрытия металлического быстровозводимого каркасного здания

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2011205150A1 (en) * 2011-08-04 2013-02-21 Weeks Holdings Pty Ltd A multi angle roof truss tie-down apparatus and method
JP2016121494A (ja) * 2014-12-25 2016-07-07 戸田建設株式会社 鉄骨工事自動施工化用の梁接合治具と、鉄骨梁材の建て入れ自動施工化方法
GB202210076D0 (en) * 2022-07-08 2022-08-24 Jwef Consulting Ltd Apparatus, kit and a method for joining first and second members

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR81501E (fr) * 1958-10-07 1963-10-04 Système d'assemblage et de fixation d'éléments de construction préfabriqués, permettant un montage ou un démontage rapides
AT298727B (de) * 1970-10-16 1972-05-25 Perfekta Wiener Gummi Und Plas Verbindung wenigstens zweier Möbelelemente
WO1992015791A1 (fr) * 1991-02-28 1992-09-17 Lehigh University Connecteur structurel dont la forme se rapproche de celle d'un cone de section transversale elliptique
DE19647332A1 (de) * 1996-11-15 1998-05-28 Kunststiftung Volkswagen Kunst Wandsystem aus Pfeilern und Verbindungsstangen und Verfahren zu seiner Montage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1087401A (en) * 1963-07-03 1967-10-18 Beta Aluminium Products Ltd Improvements in or relating to structural joints
US3849012A (en) * 1973-10-24 1974-11-19 T Krouse Building structure fastener
DE4313895A1 (de) * 1993-04-28 1994-11-03 Reinhard Tweer Gmbh Traggliedverbindung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR81501E (fr) * 1958-10-07 1963-10-04 Système d'assemblage et de fixation d'éléments de construction préfabriqués, permettant un montage ou un démontage rapides
AT298727B (de) * 1970-10-16 1972-05-25 Perfekta Wiener Gummi Und Plas Verbindung wenigstens zweier Möbelelemente
WO1992015791A1 (fr) * 1991-02-28 1992-09-17 Lehigh University Connecteur structurel dont la forme se rapproche de celle d'un cone de section transversale elliptique
DE19647332A1 (de) * 1996-11-15 1998-05-28 Kunststiftung Volkswagen Kunst Wandsystem aus Pfeilern und Verbindungsstangen und Verfahren zu seiner Montage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102443141A (zh) * 2010-10-15 2012-05-09 海洋王照明科技股份有限公司 金属卟啉-喹喔啉有机半导体材料及其制备方法和应用
RU2495982C1 (ru) * 2012-03-20 2013-10-20 Всеволод Эдуардович Глуховцев Узел соединения стойки фахверка с торцевым ригелем покрытия металлического быстровозводимого каркасного здания

Also Published As

Publication number Publication date
GB2431973B (en) 2009-04-29
GB2431973A (en) 2007-05-09
MY147250A (en) 2012-11-14
GB0522553D0 (en) 2005-12-14

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