US20020157332A1 - Support grid system - Google Patents

Support grid system Download PDF

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Publication number
US20020157332A1
US20020157332A1 US10/084,795 US8479502A US2002157332A1 US 20020157332 A1 US20020157332 A1 US 20020157332A1 US 8479502 A US8479502 A US 8479502A US 2002157332 A1 US2002157332 A1 US 2002157332A1
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US
United States
Prior art keywords
leg
clip
main
ceiling
grid
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.)
Abandoned
Application number
US10/084,795
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English (en)
Inventor
Daniel Ziegler
Glenn Alexander
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.)
Armstrong World Industries Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US10/084,795 priority Critical patent/US20020157332A1/en
Assigned to ARMSTRONG WORLD INDUSTRIES, INC. reassignment ARMSTRONG WORLD INDUSTRIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ALEXANDER, GLENN W., ZIEGLER, DANIEL C.
Publication of US20020157332A1 publication Critical patent/US20020157332A1/en
Abandoned legal-status Critical Current

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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
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
    • E04B9/065—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
    • E04B9/064—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising extruded supporting beams
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/18—Means for suspending the supporting construction
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/22—Connection of slabs, panels, sheets or the like to the supporting construction
    • E04B9/24—Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like positioned on the upperside of, or held against the underside of the horizontal flanges of the supporting construction or accessory means connected thereto
    • E04B9/26—Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like positioned on the upperside of, or held against the underside of the horizontal flanges of the supporting construction or accessory means connected thereto by means of snap action of elastically deformable elements held against the underside of the supporting construction

Definitions

  • the present invention generally relates to a support grid system and more specifically to a system comprising a bracing attachment clip to aid in providing resistance to a wind up-lift force.
  • Ceilings typically can be comprised of a system of panels or formed from drywall sheeting. Preferably, ceilings exposed to the elements are designed to withstand various environmental conditions. The two most common environmental conditions are rain and wind. Ceilings comprised of drywall or formed from panels having a moisture sensitive binder such as starch are the most sensitive to rain while ceilings formed from corrosive resistant metal panels are the least sensitive to moisture.
  • Ceilings formed from sheets of drywall have considerable bridging and resistance strength as compared to ceilings formed from metal panels. Once a drywall sheet has been screwed into a support grid, the drywall sheet stabilizes the whole system and helps distribute the load. In a ceiling comprised of metal panels there is no such bridging and resistance strength.
  • metal panels are especially vulnerable to uplifting forces caused by strong winds such as in the case of hurricanes. Panels can break free of the support grid system and become flying projectiles capable of causing injury to persons or property. In response to such dangers many communities require that exterior ceiling applications meet an up-lift capability of Class 90.
  • the support grid of a paneled ceiling can be strengthened to help meet up-lift restrictions and to prevent panels from becoming projectiles in a wind storm.
  • One method used to strengthen the support grid includes the use of compression posts attached to both the building structure and the support grid.
  • the compression posts are notched to come down around the bulb of the grid and are typically nailed to the truss system of the roof.
  • the precision cut required to form a notch that can fit around the bulb part of the grid is very difficult to make and requires extreme care since there is very little tolerance in the cut.
  • the present invention includes a ceiling system capable of meeting a wind up-lift capability of at least Class 90 or greater. Additionally, further embodiments are provided meeting wind up-lift requirements of at least Class 60 or greater and at least Class 30 or greater.
  • the ceiling system includes a grid formed from a plurality of parallel-extending main runners having a plurality of cross runners extending between the main runners. The grid can be suspended from and attached to a ceiling using a plurality of compression struts perpendicular to the ceiling.
  • a bracing attachment clip is attached to a runner and a compression strut.
  • the clip essentially comprises a first and second leg and a mid-portion. The first leg secures the clip to a runner and the second leg secures the clip to an adjoining compression strut. The mid-portion of the clip conforms to the bulb portion of the runner.
  • the attached clip is designed to prevent the grid main runners from rotating away from the compression posts. The clip provides positive engagement of the main runner bulb and the compression post.
  • the system aids in the prevention of grid main runner rotation and vertical lift which takes place when the system is subjected to strong wind forces.
  • the clip can be positioned about every 2 feet on the main beam to meet a 90 classification. The spacing may be an even fraction of about 12 feet since most runners are 12 feet in length.
  • the clip may be positioned across the runner splice to strengthen the splice against twisting.
  • a further embodiment includes a support member for a support grid having a main runner having a bulb portion.
  • the main runner has the form of an inverted “T”.
  • a clip having a mid-portion disposed between two legs is attached to the main runner by one of the legs. Additionally, the mid-portion is substantially shaped to conform to the bulb of the main runner.
  • An additional embodiment includes a clip for attaching a main runner to a compression strut.
  • the clip includes at least two ends which connect a compression strut and a main runner.
  • the clip also has a mid-section that fits partially around the bulb portion of the main runner.
  • FIG. 1 a is a schematic view of the clip attached to the main beam
  • FIG. 1 b is a schematic view of the back of the clip attached to the main beam and compression strut;
  • FIG. 1 c is a schematic view of the clip attached to the main beam and the compression strut attached to a truss;
  • FIG. 2 illustrates various views of the clip
  • FIG. 3 illustrates the grid structure, clip and strut.
  • the present invention provides for a ceiling system comprising a grid formed from a plurality of parallel-extending main runners having a plurality of cross runners extending between the main runners. A plurality of compression struts are attached to the grid and a clip is secured to the main runner and the compression strut.
  • the clip aids in providing a wind up-lift capability up to Class 90 for the ceiling system.
  • the clip may be made of most any material that is resilient enough to provide the stability required for the desired up-lift capability.
  • the clip may be comprised of a metallic composition and typically steel.
  • the clip may also be formed from a polymeric material or engineered composite.
  • the clip is fastened to the compression post and main runner typically by screws. Of course other fastening means may also be used such as rivets.
  • the clip 2 can be placed across a runner splice. When the clip 2 is placed across the splice the clip 2 provides added strength.
  • One configuration of the clip 2 includes half of the clip leg attached to one runner and the other half attached to a second runner.
  • the clips may also be placed at various desired intervals depending upon the up-lift strength desired and the strength or gauge of runners. For example, the clip 2 can be positioned about every 2 feet on the main beam to meet a 90 classification. The spacing may be an even fraction of about 12 feet, since most runners are 12 feet in length. Of course, lower classifications, such as 60, can be met with wider spacings.
  • the clip 2 may be made of 18 gauge hot dipped galvanized steel with a zinc coating level of G60.
  • the clip 2 can be formed from stamped steel blank and drilled to add pilot holes. The pilot holes maintain the screw placement accuracy and the integrity of attachment to the grid.
  • the clip 2 physically wraps around the bulb 14 of the grid and after securing the clip to the main runner with screws, becomes an integral part of the grid system.
  • the panels are typically installed as downward access panels.
  • the panels may also be installed as upward access, but for ease of use and clearance, the downward access panels are typically employed.
  • the panels may be comprised of most any material suitable for the environment in which the ceiling is to be installed.
  • An example panel is typically comprised of metal or alloy. Such panels provide both strength and durability.
  • the panels may also have an edge configuration to prevent the panel from being dislodged by an up-lift draft.
  • the panels are attached to the grid such that they are held in place and are not easily dislodged from the facing side of the ceiling or upward side.
  • the panels are downwardly accessible, wherein the panels may be removed from the grid on the plenum side or the backing side of the panel. Examples of locking mechanisms that may be used to secure the panels in place are further illustrated in U.S. Pat. Nos. 5,417,025 and 5,355,646, all of which are incorporated herein in their entirety by reference.
  • FIGS. 1 a - c the clip 2 is illustrated attached to the main beam 10 by two sets of self drill screws. It is to be understood that the clip may be attached to the main beam 10 and compression strut 12 by any means, such as rivets, adhesives, bolts, or other mechanical or chemical fastening devices.
  • the mid-section 8 of the clip 2 fits over the bulb 14 portion of the main beam 10 to hold the main beam 10 securely in place against the compression strut 12 .
  • FIG. 2 illustrates an embodiment of the clip 2 .
  • the clip 2 has a first end 6 and a second end 4 .
  • the ends may have at least one hole for fastening the clip 2 to both the main beam and the compression strut via the respective ends.
  • the mid-section 8 has a ridge or indentation that approximates the bulb portion 14 of the main beam 10 .
  • the bulb portion 14 of the main beam 10 may fit within the mid-section 8 of the clip.
  • FIG. 3 illustrates an embodiment of the ceiling system comprising the clip 2 , main beam 10 , compression strut 12 and the cross beams forming a grid wherein a panel, not illustrated, may rest within the grid opening.
  • a test specimen was prepared measuring 10-foot square, and was tested in accordance with Underwriters Laboratories, Inc. UL 580 Standard for Safety, Tests for Uplift Resistance of Roof Assemblies. This test simulates the effects of wind gusts by use of oscillating exterior pressure and constant interior pressures.
  • the UL 580 standard provides a rating system to evaluate the comparative wind resistance of roof assemblies.
  • Chart 1 illustrates the UL 580 load table test pressures.
  • the ceiling system was installed into the 10-foot square opening created by the test frame and nominal 4′′ by 4′′ diameter lumber.
  • Ceiling tile system fasteners included wafer-head streaker screws secured to the perimeter angle and studs, Hex-head self-drilling #8 ⁇ 3 ⁇ 4′′ long secure the stud hanger to main runners and cross t's.
  • the peripheral support test apparatus frame was fabricated from C15 by 33.9 steel channels having a dimension of 10′0′′ wide by 10′0′′ long by 1′3′′ deep. Two chambers were welded together forming a 30′′ deep chamber to provide simulated roof trusses. Nominal 4′′ ⁇ 4′′ wood members were installed to the base of the steel channel frame. The test results essentially indicated no visible damage for all the classes tested.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Connection Of Plates (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Building Environments (AREA)
  • Passenger Equipment (AREA)
  • Railway Tracks (AREA)
  • Radiation-Therapy Devices (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Residential Or Office Buildings (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
US10/084,795 2001-02-26 2002-02-25 Support grid system Abandoned US20020157332A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/084,795 US20020157332A1 (en) 2001-02-26 2002-02-25 Support grid system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US27166001P 2001-02-26 2001-02-26
US10/084,795 US20020157332A1 (en) 2001-02-26 2002-02-25 Support grid system

Publications (1)

Publication Number Publication Date
US20020157332A1 true US20020157332A1 (en) 2002-10-31

Family

ID=23036516

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/084,795 Abandoned US20020157332A1 (en) 2001-02-26 2002-02-25 Support grid system

Country Status (9)

Country Link
US (1) US20020157332A1 (de)
EP (1) EP1236837B1 (de)
AT (1) ATE294293T1 (de)
AU (1) AU784998B2 (de)
CA (1) CA2373235A1 (de)
DE (1) DE60203836T2 (de)
ES (1) ES2241908T3 (de)
MX (1) MXPA02001962A (de)
SG (1) SG129997A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080155936A1 (en) * 2006-12-27 2008-07-03 Usg Interiors, Inc. Compression post assembly for wind up-lift of suspension soffits
US9771718B1 (en) 2016-10-07 2017-09-26 Tate Access Floors Leasing, Inc. Strut with non-structural infill
US10106982B2 (en) 2017-03-13 2018-10-23 Rockwool International A/S High strength grid member for suspended ceilings

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11802407B2 (en) 2021-11-23 2023-10-31 Rockwool A/S Suspended drywall ceiling grid system support members

Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1415273A (en) * 1917-03-09 1922-05-09 Stevens Partition Ceiling construction
US3035672A (en) * 1958-11-12 1962-05-22 Luminous Ceilings Inc Subceiling track structure
US3081398A (en) * 1960-03-11 1963-03-12 Ralph E Karth Lighting fixture support
US3312028A (en) * 1963-08-05 1967-04-04 Kaiser Aluminium Chem Corp Roofing, siding or ceiling structure of interlocked channel section panels
US3586282A (en) * 1969-03-27 1971-06-22 Armstrong Cork Co Lighting fixture mounting bracket
US3594970A (en) * 1968-05-30 1971-07-27 Gabriel John Macgrath Wall and ceiling constructions
US3599921A (en) * 1970-01-14 1971-08-17 Erico Prod Inc Independent support clips
US3612461A (en) * 1970-04-20 1971-10-12 Minerallac Electric Co Light fixture supporting clip
US3998419A (en) * 1975-11-03 1976-12-21 United States Gypsum Company Swivel type hanger bracket
US3998020A (en) * 1975-11-03 1976-12-21 United States Gypsum Company Adjustable suspension systems for ceilings
US4081931A (en) * 1975-01-11 1978-04-04 Kiyotaka Miyoshi Anti-smoke hanging wall and construction method
US4084364A (en) * 1976-04-12 1978-04-18 Roblin Industries, Inc. Compression strut for suspended ceiling
US4189893A (en) * 1978-09-11 1980-02-26 United States Gypsum Company Ceiling runner and panel assembly having sliding lockability
US4191352A (en) * 1978-08-21 1980-03-04 Fastway Fasteners, Inc. Rotatably installed suspension clip
US4266384A (en) * 1979-06-22 1981-05-12 United States Gypsum Company Fire resistant ceiling furring system
US4294054A (en) * 1979-08-09 1981-10-13 United States Gypsum Company Soffit system for suspended ceiling
US4384437A (en) * 1980-10-28 1983-05-24 Anglia Jay Purlin Company Limited Heat insulating roofing systems
US4545166A (en) * 1983-11-21 1985-10-08 Manville Service Corporation Ceiling insulation system
US4619086A (en) * 1982-07-21 1986-10-28 Kabushiki Kaisha Naka Gijutsu Kenkyusho Ceiling construction
US4723749A (en) * 1986-05-19 1988-02-09 Erico International Corporation Channel clip
US4805855A (en) * 1987-12-18 1989-02-21 Kirby Thomas S Bar hanger for hanging conduits or the like
US4905952A (en) * 1987-11-12 1990-03-06 Pinquist Tool & Die Co., Inc. Locking skirt for channel-beam clamp
US5619833A (en) * 1995-01-26 1997-04-15 Neff; Eric S. Suspended ceiling system
US5732521A (en) * 1995-03-24 1998-03-31 Wilhelmi Werke Aktiengesellschaft Longitudinal or transverse support for ceiling panelling
US6360507B1 (en) * 2000-08-24 2002-03-26 Icon International, Inc. Universal support clip for suspended ceilings

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1272449A (fr) * 1960-11-03 1961-09-22 Elektro Metall Construction de faux-plafonds avec organes de suspension et plaques de recouvrement préfabriqués
US4630423A (en) * 1984-12-24 1986-12-23 United States Elevator Corporation Suspended-ceiling framework assembly

Patent Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1415273A (en) * 1917-03-09 1922-05-09 Stevens Partition Ceiling construction
US3035672A (en) * 1958-11-12 1962-05-22 Luminous Ceilings Inc Subceiling track structure
US3081398A (en) * 1960-03-11 1963-03-12 Ralph E Karth Lighting fixture support
US3312028A (en) * 1963-08-05 1967-04-04 Kaiser Aluminium Chem Corp Roofing, siding or ceiling structure of interlocked channel section panels
US3594970A (en) * 1968-05-30 1971-07-27 Gabriel John Macgrath Wall and ceiling constructions
US3586282A (en) * 1969-03-27 1971-06-22 Armstrong Cork Co Lighting fixture mounting bracket
US3599921A (en) * 1970-01-14 1971-08-17 Erico Prod Inc Independent support clips
US3612461A (en) * 1970-04-20 1971-10-12 Minerallac Electric Co Light fixture supporting clip
US4081931A (en) * 1975-01-11 1978-04-04 Kiyotaka Miyoshi Anti-smoke hanging wall and construction method
US3998419A (en) * 1975-11-03 1976-12-21 United States Gypsum Company Swivel type hanger bracket
US3998020A (en) * 1975-11-03 1976-12-21 United States Gypsum Company Adjustable suspension systems for ceilings
US4084364A (en) * 1976-04-12 1978-04-18 Roblin Industries, Inc. Compression strut for suspended ceiling
US4191352A (en) * 1978-08-21 1980-03-04 Fastway Fasteners, Inc. Rotatably installed suspension clip
US4189893A (en) * 1978-09-11 1980-02-26 United States Gypsum Company Ceiling runner and panel assembly having sliding lockability
US4266384A (en) * 1979-06-22 1981-05-12 United States Gypsum Company Fire resistant ceiling furring system
US4294054A (en) * 1979-08-09 1981-10-13 United States Gypsum Company Soffit system for suspended ceiling
US4384437A (en) * 1980-10-28 1983-05-24 Anglia Jay Purlin Company Limited Heat insulating roofing systems
US4619086A (en) * 1982-07-21 1986-10-28 Kabushiki Kaisha Naka Gijutsu Kenkyusho Ceiling construction
US4545166A (en) * 1983-11-21 1985-10-08 Manville Service Corporation Ceiling insulation system
US4723749A (en) * 1986-05-19 1988-02-09 Erico International Corporation Channel clip
US4905952A (en) * 1987-11-12 1990-03-06 Pinquist Tool & Die Co., Inc. Locking skirt for channel-beam clamp
US4805855A (en) * 1987-12-18 1989-02-21 Kirby Thomas S Bar hanger for hanging conduits or the like
US5619833A (en) * 1995-01-26 1997-04-15 Neff; Eric S. Suspended ceiling system
US5732521A (en) * 1995-03-24 1998-03-31 Wilhelmi Werke Aktiengesellschaft Longitudinal or transverse support for ceiling panelling
US6360507B1 (en) * 2000-08-24 2002-03-26 Icon International, Inc. Universal support clip for suspended ceilings

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080155936A1 (en) * 2006-12-27 2008-07-03 Usg Interiors, Inc. Compression post assembly for wind up-lift of suspension soffits
WO2008088519A2 (en) * 2006-12-27 2008-07-24 Usg Interiors, Inc. Compression post assembly for wind up-lift of suspension soffits
WO2008088519A3 (en) * 2006-12-27 2008-10-09 Usg Interiors Inc Compression post assembly for wind up-lift of suspension soffits
US7730690B2 (en) * 2006-12-27 2010-06-08 Usg Interiors, Inc. Compression post assembly for wind up-lift of suspension soffits
US9771718B1 (en) 2016-10-07 2017-09-26 Tate Access Floors Leasing, Inc. Strut with non-structural infill
US10106982B2 (en) 2017-03-13 2018-10-23 Rockwool International A/S High strength grid member for suspended ceilings

Also Published As

Publication number Publication date
AU1868002A (en) 2002-08-29
CA2373235A1 (en) 2002-08-26
AU784998B2 (en) 2006-08-17
EP1236837A1 (de) 2002-09-04
ES2241908T3 (es) 2005-11-01
DE60203836T2 (de) 2006-01-26
EP1236837B1 (de) 2005-04-27
SG129997A1 (en) 2007-03-20
DE60203836D1 (de) 2005-06-02
MXPA02001962A (es) 2004-08-12
ATE294293T1 (de) 2005-05-15

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ARMSTRONG WORLD INDUSTRIES, INC., PENNSYLVANIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ZIEGLER, DANIEL C.;ALEXANDER, GLENN W.;REEL/FRAME:012864/0175

Effective date: 20020409

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE