CA2491194A1 - Floor system with steel joists having openings with edge reinforcements and method - Google Patents

Floor system with steel joists having openings with edge reinforcements and method Download PDF

Info

Publication number
CA2491194A1
CA2491194A1 CA002491194A CA2491194A CA2491194A1 CA 2491194 A1 CA2491194 A1 CA 2491194A1 CA 002491194 A CA002491194 A CA 002491194A CA 2491194 A CA2491194 A CA 2491194A CA 2491194 A1 CA2491194 A1 CA 2491194A1
Authority
CA
Canada
Prior art keywords
web
openings
floor
flange
flanges
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.)
Granted
Application number
CA002491194A
Other languages
French (fr)
Other versions
CA2491194C (en
Inventor
Ernest R. Bodnar
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.)
GCG Holdings Ltd
Original Assignee
GCG Holdings 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 GCG Holdings Ltd filed Critical GCG Holdings Ltd
Publication of CA2491194A1 publication Critical patent/CA2491194A1/en
Application granted granted Critical
Publication of CA2491194C publication Critical patent/CA2491194C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/10—Load-carrying floor structures formed substantially of prefabricated units with metal beams or girders, e.g. with steel lattice girders
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • E04C3/09—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders at least partly of bent or otherwise deformed strip- or sheet-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0413—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section being built up from several parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0421—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section comprising one single unitary part
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/0434—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the open cross-section free of enclosed cavities
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0452—H- or I-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0473—U- or C-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0482—Z- or S-shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Floor Finish (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

A steel joist member for use in supporting floor structures giving great strength and convenience and improved acoustical performance having a web defining side edges and an axis, a flange on at least one side edge, openings through said web at spaced intervals therealong, having rounded ends and parallel linear sides, portions of said web displaced from said opening remaining attached integrally to the web by bend lines formed on the linear sides of the openin g along axes parallel to the web axis, and forming reinforcing channels alongside the opposite sides of the opening. Also disclosed is a composite joist member made up of two such members joined together back to back with their openings in registration creating an H shape or an I shape. Also disclosed is a rim member for supporting the composite joists to form a floor structure. Also disclosed is a method of making such a floor joist member. Also disclosed is a floor panel system wherein floor panels can be prefabricated in a factory and transported to a construction site ready for installation i n a building.

Claims (18)

1. A steel joist member for use in floor structures and having reduced weight, and improved acoustical performance characteristics as compared with solid web steel joists, and comprising;
a web defining side edges and an axis;
a flange on at least one side edge;
openings through said web at spaced intervals therealong, of generally elongated oval shape, and defining curved ends and opposed linear sides;
edge flanges extending around said opening substantially at right angles thereto;
two bracing lip portions of said web being displaced from said opening and remaining attached integrally by edge flanges to said web along opposite linear sides of said opening;
a right angle bend in each said lip portion bent parallel to but displaced away from said web, thereby forming said lip portions into channel shapes in section for strengthening said joist in the regions of said openings.
2. A steel joist member as claimed in claim 1 including depressions formed in said web at spaced intervals, and openings formed in said depressions to reduce sound transfer through the joist.
3. A steel joist member as claimed in claim 1 wherein there are two said flanges one on each side of said web, being formed normal to said web, and lips formed along said flanges normal to said flanges.
4. A steel joist member as claimed in claim 1 said openings are identical and symmetrical, and are arranged in uniform aligned orientation and define between them transverse struts extending transversely across said web.
5. A steel joist member as claimed in claim 4 including openings formed in said web at opposite ends of each said strut.
6. A steel joist member as claimed in claim 5 including an embedment flange formed on a said edge flange on said one side of said web whereby to permit embedment in a concrete panel.
7. A composite joist member formed of two steel joist members as claimed in claim 1, said two joist members being arranged back to back with their respective flanges extending away from one another, and with their openings registering with one another to form a composite joist member
8. A steel joist as claimed in claim 1 for partial embedment in concrete and including an angled flange formed with openings for flow of concrete therethrough, and a locking strip formed along said angled flange.
9. A floor system for supporting a floor and comprising;
a plurality of composite steel joist member made up of two steel joists each said steel joist in turn comprising;
a web defining side edges and an axis;
a side flange on at least one side edge;

openings through said web at spaced intervals therealong, each said opening being of generally elongated oval shape, and defining curved ends and opposed linear sides;
edge flanges extending around each said opening substantially at right angles thereto;
two bracing lip portions of said web being displaced from said opening and remaining attached integrally by edge flanges to said web along opposite linear sides of said opening;
a right angle bend in each said lip portion bent parallel to but displaced away from said web, thereby forming said lip portions into channel shapes in section for strengthening said joist in the regions of said openings;
at least two rim members, each said rim member in turn comprising;
a web, and a support flange extending from said web at right angles;
a top flange for engaging a wall structure;
a plurality of tabs displaced from said web, for attachment to respective said composite joist members.
10. A floor system for supporting a floor as claimed in Claim 9 wherein said composite joist members are formed with embedment flanges and locking strips along one of their sides, and wherein a portion of said embedment flanges and locking strips are removed adjacent said tabs, to facilitate interconnection with said tabs.
11. A floor system for supporting a floor as claimed in Claim 9 wherein said rim member is formed with abutments for engaging sides of said composite joist members.
12. A floor system for supporting a floor as claimed in Claim 9 wherein said rim members incorporate an upstanding edge flange.
13. A floor system for supporting a floor as claimed in Claim 9 wherein said rim members incorporate an downward edge flange.
14. A floor system for supporting a floor as claimed in Claim 9 wherein said top flanges of said rim members incorporate upstanding embedment loops.
15. A floor system for supporting a floor as claimed in Claim 9 wherein said joist members and said rim members are assembled into a prefabricated panel ready for delivery to a building site.
16. A floor system as claimed in claim 15 and including an embedment flange formed on a said edge flange on said one side of said web whereby to permit embedment in a concrete panel, and a concrete slab poured and set embedding said embedment flanges.
17. A method of making a composite steel joist member formed of two steel joists each having a web and side edges, and a flange along at least one said side edge, and openings through said web, said method characterized by the steps of;
forming said openings which are identical and symmetrical spaced along said web at spaced intervals therealong, with portions of said web being displaced to one side of said opening leaving two side portions attached to said web, and, forming said side portions by bending said side portions along bend lines parallel to the web axis, to define channel shapes in section, and arranging said two joists back to back with their openings in registration with one another.
18. A method of making a composite steel joist member as claimed in claim 17 and including the step of forming struts extending transversely across said web between said openings and forming openings in said web adjacent each end of each strut.
CA2491194A 2004-12-27 2004-12-29 Floor system with steel joists having openings with edge reinforcements and method Active CA2491194C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/020,242 2004-12-27
US11/020,242 US20060150548A1 (en) 2004-12-27 2004-12-27 Floor system with stell joists having openings with edge reinforcements and method

Publications (2)

Publication Number Publication Date
CA2491194A1 true CA2491194A1 (en) 2006-06-27
CA2491194C CA2491194C (en) 2011-04-05

Family

ID=36614429

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2491194A Active CA2491194C (en) 2004-12-27 2004-12-29 Floor system with steel joists having openings with edge reinforcements and method

Country Status (6)

Country Link
US (1) US20060150548A1 (en)
CN (1) CN100419184C (en)
CA (1) CA2491194C (en)
EA (1) EA011532B1 (en)
UA (1) UA88668C2 (en)
WO (1) WO2006069435A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8381469B2 (en) 2010-04-08 2013-02-26 Dizenio, Inc. Cold formed joist

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090205285A1 (en) * 2008-02-15 2009-08-20 Lightweight Structures, Llc (A Wisconsin Limited Liability Company) Composite floor systems and apparatus for supporting a concrete floor
GB2459358B (en) * 2009-04-09 2010-06-02 Beattie Passive Build System Ltd Building and method of constructing a building
CA2668945A1 (en) * 2009-05-13 2010-11-13 Ernest R. Bodnar Open web stud with low thermal conductivity and screw receiving grooves
CA2671647A1 (en) * 2009-07-10 2011-01-10 Ernest R. Bodnar Composite panel and stud and dual slab panel and method
WO2011139401A2 (en) * 2010-05-04 2011-11-10 Plattforms, Inc. Precast composite structural girder and floor system
US9834940B2 (en) * 2010-05-06 2017-12-05 9344-8462 Québec Inc. Modular building structures improvements
US20120047834A1 (en) * 2010-08-26 2012-03-01 Burnco Manufacturing Inc. Cold formed stud
US8863477B2 (en) * 2010-08-26 2014-10-21 Dizenio Inc. Cold formed stud and method of use
JP5908282B2 (en) * 2012-01-08 2016-04-26 大和ハウス工業株式会社 Steel beam through hole reinforcement design method and reinforcement design support device
US8943776B2 (en) * 2012-09-28 2015-02-03 Ispan Systems Lp Composite steel joist
FR2996868B1 (en) * 2012-10-16 2014-12-19 Bacacier Profilage METALLIC AMOUNT FOR A BUILDING PARTITION, AND A BUILDING PARTITION COMPRISING AT LEAST ONE SUCH AMOUNT
CN103276839B (en) * 2013-06-08 2015-10-28 北京工业大学 The how high-rise assembled steel framework-eccentrical braces of a kind of hollow irregular column
CN103437498B (en) * 2013-09-12 2016-04-20 南京工业大学 Profiled steel sheet combination beam with continuous hanging rib reinforcing web plate for punching and manufacturing and mounting method
WO2016004474A1 (en) 2014-07-07 2016-01-14 Rockhouse International Pty Ltd Frame systems for building structures
CN104120828A (en) * 2014-07-13 2014-10-29 张跃 A joist
CN104264898B (en) * 2014-08-21 2016-04-27 四川金锋建设有限公司 A kind of porous threading girder steel
USD757521S1 (en) * 2014-09-30 2016-05-31 Oscar Rosner Joist support
DE202014105633U1 (en) * 2014-11-21 2015-02-12 Richter-System Gmbh & Co. Kg Profile for a ventilated roof construction
LT6370B (en) * 2015-06-10 2017-03-10 Uab Aldrea Beam component for use in technical construction, construction kit and method of connecting beam components
WO2018114821A1 (en) * 2016-12-21 2018-06-28 Kistler Holding Ag Receptacle arrangement for installation in a road surface and method for installing this receptacle arrangement in a road surface
US20190323282A1 (en) * 2018-04-18 2019-10-24 Assa Abloy Entrance Systems Ab Strut for windload door
CN108951982A (en) * 2018-07-24 2018-12-07 肇庆三乐集成房屋制造有限公司 Assembly concrete superposed floor plate and its construction method based on cement fibrolite plate composite reinforcing steel bar skeleton
ES2779062A1 (en) * 2019-02-13 2020-08-13 Univ Valladolid STRUCTURAL ELEMENT WITH ACCESS TO FACILITIES COMPONENTS BY ALMA AND MANUFACTURING METHOD (Machine-translation by Google Translate, not legally binding)
WO2020183056A1 (en) * 2019-03-13 2020-09-17 Peikko Group Oy Method for constructing a closed steel sheet structure and closed steel sheet structure
US20220145628A1 (en) * 2019-04-10 2022-05-12 Speedfloor Limited Building panel
CN111677321B (en) * 2020-06-04 2021-10-08 江苏文博建筑设计有限公司 Assembled building reinforced structure

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1682202A (en) * 1928-08-28 vaughn
US741066A (en) * 1903-03-23 1903-10-13 Timothy O'shea Building construction.
US947514A (en) * 1908-10-19 1910-01-25 Frank W Stevens Concrete floor construction.
US1235636A (en) * 1914-10-22 1917-08-07 Arthur G Bagnall Floor construction.
US1994716A (en) * 1932-05-12 1935-03-19 Goodyear Zeppelin Corp Girder
US2106084A (en) * 1936-11-09 1938-01-18 Reynolds Corp Joist suspension
US2177277A (en) * 1937-06-02 1939-10-24 Pacific Portland Cement Compan Metal stud
US2145407A (en) * 1938-03-23 1939-01-31 Soule Steel Company Building construction
US2185475A (en) * 1938-04-20 1940-01-02 Rafter Machine Company Stud and rafter
US3147570A (en) * 1959-04-28 1964-09-08 Richard O Shanton Wall braces and method of using same
US3083794A (en) * 1960-04-12 1963-04-02 Penn Metal Company Inc Joined sheet metal structures
DE2046459A1 (en) * 1970-09-21 1972-04-13 Haushalter, Dietmar, 5804 Herdecke Beams for formwork, falsework and the like
US4793113A (en) * 1986-09-18 1988-12-27 Bodnar Ernest R Wall system and metal stud therefor
US4909007A (en) * 1987-03-19 1990-03-20 Ernest R. Bodnar Steel stud and precast panel
US4930278A (en) * 1988-06-02 1990-06-05 In-Ve-Nit International Inc. Composite cementitious building panels
US5669197A (en) * 1991-06-03 1997-09-23 Bodnar; Ernest Robert Sheet metal structural member
FI89961C (en) * 1992-04-13 1993-12-10 Rannila Steel Oy Connecting disc intended for a connecting plate
CA2077429C (en) * 1992-09-02 1999-03-30 Ernest R. Bodnar Roll formed metal member
US5964071A (en) * 1997-02-14 1999-10-12 Sato Katako Seisakusho Co., Ltd. Frame material for wall
US6301854B1 (en) * 1998-11-25 2001-10-16 Dietrich Industries, Inc. Floor joist and support system therefor
IT1303871B1 (en) * 1998-11-25 2001-03-01 Sistem Engineering S R L STRUCTURE OF WALL AUCTIONS FOR RETICULAR BEAMS
US6170217B1 (en) * 1999-02-05 2001-01-09 Darrell G. Meyer Bearing elements and methods relating to same
USD423325S (en) * 1999-04-27 2000-04-25 Steel Floors, Llc Joist ledger with tab
WO2003008732A1 (en) * 2001-07-18 2003-01-30 Ernest Bodnar Steel stud and composite construction panel
US20030014935A1 (en) * 2001-07-18 2003-01-23 Bodnar Ernest R. Sheet metal stud and composite construction panel and method
US6715256B1 (en) * 2002-03-29 2004-04-06 Magnatrax Corporation Sliding hold-down clip for standing seam metal roof
CA2404320C (en) * 2002-09-30 2005-02-08 Ernest R. Bodnar Steel stud with openings and edge formations and method
CA2455071C (en) * 2003-11-24 2011-11-15 Michael Strickland Segmented cold formed joist

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8381469B2 (en) 2010-04-08 2013-02-26 Dizenio, Inc. Cold formed joist

Also Published As

Publication number Publication date
WO2006069435A1 (en) 2006-07-06
EA200701334A1 (en) 2007-10-26
CN100419184C (en) 2008-09-17
UA88668C2 (en) 2009-11-10
CA2491194C (en) 2011-04-05
CN1796698A (en) 2006-07-05
EA011532B1 (en) 2009-04-28
US20060150548A1 (en) 2006-07-13

Similar Documents

Publication Publication Date Title
CA2491194A1 (en) Floor system with steel joists having openings with edge reinforcements and method
RU2418917C2 (en) Structural elements and methods of their application
CA2121965C (en) Composite structural steel wall reinforced with concrete and mold therefor
US5459970A (en) Concrete structures and methods for their manufacture
US20030084629A1 (en) Ring beam/lintel system
CN110469001B (en) Superimposed shear wall and construction method thereof
US20220213684A1 (en) Modular composite action panel and structural systems using same
US6668512B2 (en) Lightweight building component
JP2006316580A (en) Corrugated steel plate web pc composite beam and construction method of bridge using corrugated steel plate web pc composite beam
JP2019526004A (en) Precast concrete formwork, floor system, and construction method
JP2001512198A (en) Building panels used for building construction
AU2002256575B2 (en) A structural formwork member
WO2016161478A1 (en) Stay-in-place beam formwork for concrete structures
CA2418885A1 (en) Lightweight building component
AU2002256575A1 (en) A structural formwork member
KR100939970B1 (en) A method of constructing a complex girder and its structure
CN112575946A (en) Prefabricated coincide floor of assembled
US7251919B2 (en) Lightweight building component
RU62622U1 (en) REINFORCED REINFORCED CONCRETE STRUCTURE OF A MULTI-STOREY BUILDING, FRAMEWORK CONSTRUCTION OF A FRAME, INTERIOR ELEMENT
AU2009301641B2 (en) Stud frame and formwork panel constructed therefrom
RU178522U1 (en) Precast monolithic overlap
CN106760115B (en) Light assembled composite floor slab and construction method thereof
KR20160149087A (en) Built-up beam having truss reinforcement
EP1421241A1 (en) A structural formwork member
CA2324966C (en) Lightweight building component

Legal Events

Date Code Title Description
EEER Examination request