EP0562779A1 - Shaft wall and horizontal metal stud therefor - Google Patents

Shaft wall and horizontal metal stud therefor Download PDF

Info

Publication number
EP0562779A1
EP0562779A1 EP93302113A EP93302113A EP0562779A1 EP 0562779 A1 EP0562779 A1 EP 0562779A1 EP 93302113 A EP93302113 A EP 93302113A EP 93302113 A EP93302113 A EP 93302113A EP 0562779 A1 EP0562779 A1 EP 0562779A1
Authority
EP
European Patent Office
Prior art keywords
web
wall
stud
flange
extending
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.)
Withdrawn
Application number
EP93302113A
Other languages
German (de)
English (en)
French (fr)
Inventor
Robert John Menchetti
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.)
National Gypsum Co
Original Assignee
National Gypsum Co
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 National Gypsum Co filed Critical National Gypsum Co
Publication of EP0562779A1 publication Critical patent/EP0562779A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/7407—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts
    • E04B2/7409—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts special measures for sound or thermal insulation, including fire protection
    • E04B2/7411—Details for fire protection
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/943—Building elements specially adapted therefor elongated
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0801—Separate fastening elements
    • E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F17/00—Vertical ducts; Channels, e.g. for drainage
    • E04F17/005—Lift shafts

Definitions

  • This invention relates to sheet metal studs for supporting gypsum wallboard and to improved fire-resistant hollow shaft walls.
  • novel sheet metal studs are placed horizontally between adjacent, horizontally extending gypsum core boards, typically in the four walls surrounding an elevator shaft and stairwells, and in area separation walls and the like.
  • the metal studs include, essentially, an inner flange, an outer flange and an adjoining web with a core board abutting each side of the web. At least a narrow portion of the web which is closely adjacent the inner flange is in a plane which forms an acute angle with the inner flange creating a channel-like means for holding an edge of one of the two core boards against the inner flange.
  • the web also includes means for holding an edge of the second core board against the inner flange, on the opposite side of the web.
  • Two-foot wide and up to ten-foot long, one-inch-thick gypsum core boards are disposed, with their widths extending vertically and their lengths extending horizontally, between the horizontally extending studs, said boards having bevelled lateral edges which abut the acutely angled webs of the studs.
  • the typical long side of a shaft enclosure is ten-feet long and consists essentially of alternating ten-foot long, horizontally extending core boards and ten-foot long, horizontally extending metal studs.
  • the ends of the metal studs and the core boards are disposed within a channel in a suitable vertically extending corner stud or the like.
  • Two layers of standard or special fire-retardant, typically 4-foot wide gypsum wallboard (referred to herein as wide wallboard) are screw attached to the outer flanges of the metal studs.
  • the corner stud has two outwardly opening channels directed at right angles, and the core boards and horizontal studs of two perpendicular walls extend into the two respective channels.
  • Fig. 1 is a perspective view of a portion of two perpendicular walls of an elevator shaft enclosure, constructed in accordance with the invention.
  • Fig. 2 is a cross-sectional plan view of the wall corner, taken on line 2-2 of Fig. 1.
  • Fig. 3 is a cross-sectional end view of the left wall of Fig. 1.
  • Fig. 4 is an isometric view of a horizontal stud of the walls of Fig. 1.
  • Fig. 5 is a cross-sectional end view of a modified wall embodying the invention.
  • Fig. 6 is an isometric view of an extra-long wall embodying the invention.
  • Fig. 7 is an end view of a double-width board for forming two core boards.
  • Fig. 8 is an end view of a double-width board for forming two modified core boards.
  • Figs. 9-12 are isometric views of four modified horizontal studs with core boards in place, all in accordance with the invention.
  • Elevator shaft 16 extends vertically through a plurality of floor-ceiling platforms, including the lower platform 18 and the upper platform 20 of Fig. 1.
  • the shaft wall structure 14 extends vertically from the lower platform 18 to the upper platform 20 along the edges 22 of these floor-ceiling platforms which surround and form the elevator shaft 16.
  • Side wall 10 consists of standard upwardly opening, channel-shaped floor track 24 (Fig. 3), having a horizontal web 26 and two vertical flanges 28, 30, a downwardly opening, channel shaped, ceiling track 32, having a horizontal web 34 and two vertical flanges 36, 38.
  • Floor track 24 is mechanically affixed to the top of lower platform 18 and ceiling track 32 is mechanically affixed to the bottom of upper platform 20, each adjacent the edges 22 of these floor-ceiling platforms.
  • Ceiling track 32 preferably has a plurality of spaced-apart vent openings 39 along the top edge of flange 38, to improve the wall fire-resistance. Ceiling track 32 can also be used as a floor track.
  • a vertical corner post 40 is mounted with a bottom end 42 disposed in a floor track 24 and a top end 44 disposed in a ceiling track 32, where the two floor tracks 24 and the two ceiling tracks 32 meet to form a 90° corner 46 between side wall 10 and front wall 12.
  • the corner post 40 which could be made by affixing two channels together back-to-side, is preferably a single, elongate, roll-formed sheet of metal having two outwardly opening channels 48, 50 formed of a single piece of 0.020-inch-thick steel, with the two channels 48 and 50 opening outwardly in directions at a 90° angle to one another and being directed toward, respectively, the side wall 10 and the front wall 12.
  • vertical corner post 40 consists essentially of the two channels 48, 50 each of which consists solely of a bottom wall and parallel, spaced, inner and outer side walls extending perpendicularly from the bottom wall.
  • the bottom wall of a first one of said channels (opening downwardly and to the right in Fig. 2) is also the inner side wall of a second one of said channels (opening downwardly and to the left in Fig. 2).
  • the bottom wall of the second one of said channels will be seen to be coplanar with the outer side wall of the first one of said channels.
  • FIG. 3 shows the arrangement of core boards 52, horizontal studs 54, and outwardly disposed gypsum wide wallboards 56, 58, which combine to form the side wall 10.
  • the core boards 52 are paper-covered gypsum boards which are, in cross section, 2 feet by 1 inch, and will normally have a length equal to the extent of the wall 10.
  • the bevelled edges 60, 62 along the two long edges of each core board 52 are paper-covered gypsum boards which are, in cross section, 2 feet by 1 inch, and will normally have a length equal to the extent of the wall 10.
  • the bevelled edges 60, 62 along the two long edges of each core board 52 can be used.
  • the bevelled edges 60, 62 on each core board 52 have a bevel 64, 66 which is in a plane forming an angle of 120° with one of the core board faces and 60° with the opposite core board face, and preferably, when installed as shown in Fig.
  • the bevelled edges 60, 62 are parallel, one with the other, whereby the bevel 64 on edge 60 is at an angle of 120° with core board face 68 and an angle of 60° with core board face 70, whereas bevel 66 on edge 62 is at an angle of 120° with core board face 70 and an angle of 60° with core board face 68.
  • the bevelled edges 60, 62 have a flat portion 72, of a width of about 3/8 inch, however, this could be varied considerably.
  • the first core board 52 to be installed in constructing wall 10 has a flat portion 72 resting on web 26 of floor track 24 and face 70 is held against flange 30 by a plurality of screws 74.
  • the two ends 76 (one shown in Fig. 1) of core board 52 extend into corner posts 40 (one shown) but are not affixed thereto.
  • On top of the first core board 52 to be installed is the first horizontal stud 54 to be installed, and progressively, in constructing wall 10, additional core boards 52 and horizontal studs 54 alternately are put into place, each extending at each end thereof into the channel 48 of corner posts 40 (one shown) but, preferably, neither core boards 52 nor studs 54 are affixed thereto.
  • the horizontal studs 54 are each a single, elongate, roll-formed sheet of metal, preferably 0.020-inch-thick steel, and include, essentially a Z-shaped cross section which includes an inner flange 78, a web 80 extending outwardly from inner flange 78 with an inwardly facing surface 84 which forms an angle of 60° with inner flange 78, an outer flange 82 which is parallel to and preferably about 2-1/2 inches from inner flange 78 and a means 86 for holding a core board edge 62 against outwardly facing surface 88 of web 80.
  • the stud 54 will be seen to form two opposed pockets for receiving the edges of two adjacent core boards 52.
  • the means 86 for holding core board edge 62 against the outwardly facing surface 88 of web 80, is a plurality of tabs 86 formed of about 1-inch by about 3-inch sections of metal cut and bent out of web 80, located about every 12 inches.
  • the inner flange 78 has a narrow, outwardly-turned hem 90.
  • Inner flange 78 also has an outwardly depressed, elongate rib 92 with depth equal to the outward extent of hem 90. Rib 92 prevents twisting of the stud 54 when a builder rests a core board on the top of outer flange 82 during construction.
  • Inner flange 78 has a short, downwardly extending, elongate lip 94 formed by a reverse bend of the sheet metal and web 80 is adjoined to inner flange 78 at the top of lip 94.
  • the inner flange 78 can be strengthened to some degree by forming the flange with the double thickness extending upwardly and the single thickness extending downwardly, with a hem at the bottom, as illustrated in Figs. 9-12.
  • An elongate, outermost portion 96 of web 80 is perpendicular to the outer flange 82, and outer flange 82 has a narrow, inwardly turned hem 98.
  • all the horizontal studs 54 are disposed with the inner flange 78 extending primarily upwardly from web 80 and the outer flange 82 and tabs 86 extending downwardly from web 80. It will be readily understood how gravity assists in the installation of the upper core board engaged in each stud 54.
  • the horizontal studs 54 could be reversed with inner flanges 78 extending downwardly and the outer flanges 82 and tabs 86 extending upwardly, necessitating a reversal of the faces of the core boards 52. In this embodiment, tabs could interfere with the installation of the upper board, making construction a little more difficult.
  • alternate horizontal studs 54 could be reversed, necessitating the use of core boards with bevels on the same side on each core board and with core board faces alternating on adjacent core boards. This alternating embodiment will be clearly understood from the alternative embodiment of Fig. 5.
  • a different embodiment of the invention employing modified horizontal studs 100, is shown, with the horizontal studs 100 arranged to show an alternating stud arrangement.
  • the embodiment of Fig. 5 also has non-aligned core boards 102, which permit the inclusion of vent holes 104 in the webs 106.
  • the elongate horizontal studs 100 have inner flanges 108 and outer flanges 110 which are parallel and extend in the same direction from the web 106.
  • the web 106 includes three elongate elements, a diagonal section 112 extending outwardly at 60° from one edge of inner flange 108, a mid-wall 114 extending from the opposite edge of diagonal section 112 in the opposite direction as and parallel to the inner flange 108, and an outermost portion 116 which is perpendicular to the outer flange 110 and to mid-wall 114.
  • the mid-wall 114 is spaced outwardly of the inner flange 108, a distance greater than the thickness of the core boards 102, preferably a 1-1/4-inch spacing with 1-inch-thick core board 102.
  • Core board 102 having a flat portion 123 and a bevelled portion 124, has edges 122, 122 with the bevel 124 of each edge adjacent the same face 126.
  • the core boards 102 and the studs 100 are both erected in an alternating manner, with adjacent core boards 102 having faces 126 facing oppositely and adjacent horizontal studs having upper and lower sides reversed.
  • every other core board 102 is disposed outwardly 1/4 inch, leaving an inner 1/4-inch strip 128 of web 106 exposed.
  • a plurality of vent openings 104 are formed at spaced locations along this inner 1/4-inch strip 128.
  • an elevator doorway 132 is shown, formed by two vertical roll-formed, sheet metal elongate door-frame posts 134 (one vertical post not shown), (similar door frame posts are shown in Fig. 6).
  • the door frame posts 134 include a web 136, two perpendicular flanges 138 and an inwardly protruding lip 140.
  • a short section of regular formed sheet metal elongate channel 135 is affixed back-to-back with the portion of vertical door frame post 134 extending from the top of doorway 132 to the ceiling track 32, and another section of channel 135 extends across the top of doorway 132.
  • Front wall 12 has short sections of core board 52 alternating with short sections of horizontal stud 54 along the side of doorway 132, with boards 52 and studs 54 extending into the channel 50 of corner post 40 and into the door frame post 134.
  • Other short sections of horizontal studs 54 and core boards 52 extend horizontally over doorway 132 and into the short sections of channel 135.
  • Two layers of gypsum wide wallboard 56, 58 are screw attached to the outer flanges of horizontal studs 54 and to posts 40 and 134.
  • an extra-long wall 142 is shown, constructed in accordance with the invention.
  • the horizontal studs 54 preferably will not be more than 10-feet long for most elevator shaft walls, particularly with only 2-1/2-inch-wide studs.
  • an intermediate vertical post 144 is positioned at spacings of 10 feet or less.
  • a suitable intermediate vertical post 144 is shown formed of two door frame posts 134, back-to-back, preferably mechanically affixed together, however other configurations can also be used.
  • Core boards 52 and horizontal studs 54 are shown extending from within corner posts 40 to within intermediate vertical post 144.
  • Wide wall-boards 56, 58 are affixed to the outer flanges 82 of the horizontal studs 54.
  • Figs. 9 thru 12 show four additional modifications of the invention.
  • Fig. 9 shows horizontal stud 170 with two core boards 172, in a manner similar to the structures of Figs. 1, 2 and 6. Horizontal studs 170 and core boards 172 are assembled into vertical corner posts 40, intermediate posts 144 and door frame posts 134 similar to core boards 102.
  • Horizontal stud 170 is an elongate, roll-formed sheet of metal with a cross section which includes an inner flange 174, a web 176 extending perpendicularly outwardly from the middle of inner flange 174 for about 9/16 inch to a 30° upward bend 178, then extends upwardly and outwardly to a 30° downward bend 180 and then extends outwardly to downwardly extending outer flange 182. Bends 178 and 180 thus divide web 176 into an inner flat portion 184, a central diagonal portion 186 and an outer flat portion 188.
  • a portion of the web be at an acute angle to the inner flange at a portion which is spaced outwardly from the inner flange. This angled portion may extend inwardly and be adjoined to the inner flange or the angled portion may be adjoined to the inner flange by a narrow portion perpendicular to the inner flange.
  • Horizontal stud 170 also includes a plurality of downwardly extending tabs 190 formed of 1-inch by 3-inch sections of metal cut and bent out of central diagonal portion 186. Tabs 190 are adjoined to central diagonal portion 186 adjacent to bend 178, and include a downwardly and outwardly extending angled portion 192 and a downwardly extending portion 194 terminating in a downwardly and outwardly angled lip 196 for ease of insertion of a core board 172.
  • Inner flange 174 includes an upper double-thickness portion 198 and a lower single-thickness portion 200 which includes a lower hem 202 and a midway rib 204. Hem 202 and rib 204 both extend outwardly from the balance of lower portion 200.
  • Horizontal stud 170 is mounted atop an upper edge portion 206 of one of the two core boards 172 in Fig. 9, and a lower edge portion 207 of the other core board 172 is disposed atop stud 170.
  • the upper edge portion 206 of the one core board 172 is held firmly between tabs 190 and the hem 202 and rib 204 of single-thickness portion 200 of inner flange 174.
  • Upper edge portion 206 has a flat top portion 208 and a bevelled portion 210.
  • Flat portion 208 abuts inner flat portion 184 of web 176 and bevelled portion 210 is parallel to and closely spaced from angled portion 192 of tab 190.
  • the lower edge portion 207 of the other core board 172 has a flat bottom portion 212, similar to flat top portion 208, and a bevelled portion 214, similar to bevelled portion 210.
  • Bevelled portion 214 rests on central diagonal portion 186 of web 176 and flat bottom portion 212 is parallel to and closely spaced from inner flat portion 184 of web 176.
  • the very heavy, normally about ten-foot-long core boards 172 are relatively easily inserted onto each previously mounted horizontal stud 170 by merely sliding the bevelled portion 214 down the central diagonal portion 186 until the lower edge 207 abuts the double-thick portion 198 of inner flange 174.
  • Lower edge portion 207 is held firmly between inner flange 174 and diagonal portion 186 by the weight of the core board 172, plus the weight of all core boards 172 and horizontal studs 170 which are thereabove a part of the wall.
  • the horizontal studs 170 fit tightly onto the upper edge 206 of core boards 172, but being much lighter and easier to manipulate than the core boards 172, very little problem is involved in this step.
  • Gypsum wide wallboard (not shown) is screw attached against the outer surfaces 216 of the outer flanges 182 and to posts 40, 134 and 144.
  • Fig. 10 shows horizontal stud 220 with two core boards 222, similar to core boards 52. Horizontal studs 220 and core boards 222 are assembled into vertical corner posts 40, intermediate posts 144 and door frame channels 134 in a manner similar to the structures of Figs. 1, 2 and 6.
  • Horizontal stud 220 is an elongate, roll-formed sheet of metal with a cross section which includes an inner flange 224, a web 226 extending outwardly and upwardly from the middle of inner flange 224 to a downward bend 228 and then extends outwardly to downwardly extending outer flange 230. Bend 228 thus divides web 226 into an inner diagonal portion 232 and an outer flat portion 234.
  • Horizontal stud 220 also includes a plurality of downwardly extending tabs 236 formed of 1-inch by 3-inch sections of metal cut and bent out of inner diagonal portion 232.
  • Tabs 236 are adjoined to the inner diagonal portion 232 of web 226 at about the middle of diagonal portion 232 and includes a downwardly and outwardly extending portion 238, a downwardly extending portion 240, and a downwardly and outwardly angled lip 242 for ease of insertion of a core board 222.
  • Inner flange 224 includes an upper double-thickness portion 244 and a lower single-thickness portion 246 which includes a lower hem 248 and a midway rib 249, both extending outwardly.
  • Horizontal stud 220 is mounted atop an upper edge portion 250 of one of the two core boards 222 in Fig. 10, and a lower edge portion 252 of the other core board 222 is disposed atop stud 220.
  • Upper edge portion 250 of the one core board 222 is held firmly between tabs 236 and the hem 248 and rib 249 of single-thickness portion 246 of inner flange 224.
  • Upper edge portion 250 has a flat top portion 254 and a bevelled portion 256 with an elongate corner 258 therebetween of about 150°.
  • the lower edge portion 252 of the other core board 222 has a flat bottom portion 260, similar to flat top portion 254 with the exception that it is on the opposite side of the core board 222, a bevelled portion 262, similar to bevelled portion 256 but also on the opposite side of core board 222, and an elongate corner 264 therebetween of about 150°.
  • the inner diagonal portion 232 of web 226 forms an angle 266 of 70° with upper double-thickness portion 244 of inner flange 224. Since the corners 258 and 264 are both about 150°, the bevelled portions 256 and 262 extend at an angle 268 of about 60° relative to the upper double-thickness portion 244. Consequently, the upper edge portion 250 and the lower edge portion 252 of the core boards 222 both abut the web diagonal portion 232 at the corners 258 and 264.
  • the core boards 222 are easily inserted onto each previously mounted horizontal stud 220, and the lower edge portion 252 is held firmly between inner flange 224 and web diagonal portion 232 by the weight of the core board 222, plus the weight of all core boards 222 and horizontal studs 220 which are thereabove a part of the wall.
  • Horizontal studs 220 being much lighter than the core boards 222, can be reasonably easily forced down onto the upper edge portions 250 of the core boards 222.
  • Gypsum wide wallboard (not shown) is screw attached against the outer surfaces 270 of the outer flanges 230 and to posts 40, 134 and 144.
  • Fig. 11 shows horizontal stud 272 with two core boards 274, similar to core boards 102.
  • Horizontal studs 272 and core boards 274 are assembled into vertical corner posts 40, intermediate posts 144 and door frame channels 134 in a manner similar to the structures of Figs. 1, 2 and 6.
  • Horizontal stud 272 is an elongate roll-formed sheet of metal with a cross section which includes an inner flange 276, a web 278 extending perpendicularly outwardly from the middle of inner flange 276 about 5/8 inch to 30° downward bend 280, then extends downwardly and outwardly to an upwardly extending outer flange 282. Bend 280 thus divides web 278 into an inner flat portion 284, and an outer diagonal portion 286.
  • Horizontal stud 272 also includes, at spaced apart locations along web 278, a plurality of upwardly extending tabs 288 and a plurality of downwardly extending tabs 290, each formed of, respectively, 1-inch by 3-inch sections and 1/2-inch by 3-inch sections of metal cut and bent out of outer diagonal portion 286.
  • Tabs 288 are adjoined to outer diagonal portion 286 adjacent to bend 280, and include an upwardly and outwardly extending angled portion 292 and an upwardly extending portion 294 terminating in an upwardly and outwardly angled lip 296, for ease of insertion of a core board 274.
  • Tabs 290 are adjoined to outer diagonal portion 286 about 1/2 inch outwardly from bend 280, and include a downwardly extending portion 298 and a downwardly and outwardly extending lip 300.
  • Inner flange 276 includes an upper double-thickness portion 302 and a lower single-thickness portion 304 which includes a lower hem 306 and a midway rib 308, both extending outwardly from the other parts of lower portion 304.
  • Horizontal stud 272 is mounted atop an upper edge portion 310 of one of the two core boards 274 in Fig. 11, and a lower edge portion 312 of the other core board 274 is disposed atop stud 272.
  • the upper edge portion 310 of the one core board 274 is held firmly between tabs 290 and the hem 306 and rib 308 of single-thickness portion 304 of inner flange 276.
  • Upper edge portion 310 has a flat top portion 314 and a bevelled portion 316.
  • Flat portion 314 abuts inner flat portion 284 of web 278 and bevelled portion 316 is parallel to and closely spaced from outer diagonal portion 286 of web 278.
  • the lower edge portion 312 of the other core board 274 has a flat bottom portion 318, similar to flat top portion 314, and a bevelled portion 320, similar to bevelled portion 316.
  • Flat bottom portion 318 is parallel to and closely spaced from inner flat portion 284 of web 278 and bevelled portion 320 rests on angled portion 292 of tabs 288.
  • the core boards 274 are relatively easily inserted between the tabs 288 and 290 and the inner flange 276 because of the bevelled portions 316 and 320, which engage and slide on the respective tab lips 296 and 300.
  • Gypsum wide wallboard (not shown) is screw attached against the outer surfaces 322 of outer flanges 282 and to posts 40, 134 and 144.
  • Fig. 12 shows horizontal studs 324 with two core boards 326, similar to core boards 52. Horizontal studs 324 and core boards 326 are assembled into corner posts 40, intermediate posts 144 and door frame channels 134 in a manner similar to the structures of Figs. 1, 2 and 6.
  • Horizontal stud 324 is an elongate roll-formed sheet of metal with a cross section which includes an inner flange 328, a web 330 extending perpendicularly outwardly from the middle of inner flange 328 about 5/8 inch, forming a flat portion 332, whereat a major portion 334 of web 330 extends upwardly and outwardly about 5/8 inch to bend 336 and thence downwardly and outwardly to an upwardly extending outer flange 338.
  • a minor portion 340 of web 330 about a 3-inch length of each foot of web, extends downwardly and outwardly about 5/8 inch to bend 342, thence downwardly to bend 344 and thence outwardly to upwardly extending outer flange 338.
  • Slits 346 were cut crosswise of web 330, during forming of horizontal stud 324, from the flat portion 332 to the outer flange 338.
  • the slits 346 are preferably angled slightly to form minor portions 340 which have a shorter dimension along the outer flange bend 348 than along the bend 349, whereat the minor portion 340 is adjoined to the flat portion 332.
  • the bend 336 divides the major portion 334 of web 330 into a ramp portion 350 and a connecting portion 352.
  • the bends 342 and 344 divide the minor portion 340 into a bevel portion 354, a board holding portion 356 and a connecting portion 358.
  • Both ends of web major portion 334 and of web minor portion 340 are integrally connected to the stud; they have no free or dangling ends.
  • web 330 has no tabs or any other part with a dangling or free end, all of which enhances the structural integrity of the web.
  • Inner flange 328 includes an upper double-thickness portion 360 and a lower single-thickness portion 362 which includes a lower hem 364 and a midway rib 366, both extending outwardly.
  • Horizontal stud 324 is mounted atop an upper edge portion 368 of one of the two core boards 326 in Fig. 12, and a lower edge portion 370 of the other core board 326 is disposed atop stud 324.
  • the upper edge portion 368 of the one core board 326 is held firmly between board holding portion 356 of web minor portion 340 and the hem 364 and rib 366 of single-thickness portion 362 of inner flange 328.
  • Upper edge portion 368 has a flat top portion 372 and a bevelled portion 374 with an elongate corner therebetween of about 150°.
  • Flat portion 372 abuts flat portion 332 of web 330.
  • Bevelled portion 374 is parallel to and closely spaced from minor portion, bevel portion 354.
  • the lower edge portion 370 of the other core board 326 has a flat bottom portion 376, similar to flat top portion 372, and a bevelled portion 378 similar to bevelled portion 374.
  • Flat bottom portion 376 is parallel to and closely spaced from flat portion 332 of web 330, and the junction of flat bottom portion 376 and bevelled portion 378 rests on ramp portion 350.
  • the core boards 326 are inserted onto each previously mounted horizontal stud 324 by merely sliding the bevelled portion 378 of lower edge portion 370 down the ramp portion 350 of the web 330 until the lower edge portion 370 abuts the double-thick portion 360 of inner flange 328.
  • the lower edge portion 370 is held between the ramp portion 350 and inner flange 328 by the weight of the core board 326, plus the weight of all core boards 326 and horizontal studs 324 which are thereabove a part of the wall.
  • the horizontal studs 324 are forced onto the upper edge 368 of each core board 326, with the core board bevelled portion 374 guiding the stud web minor portion 340 into the space between the inner flange 328 and the board holding portion 356.
  • Gypsum wide wallboard (not shown) is screw attached against the outer surfaces 380 of the outer flanges 338 and to posts 40, 134 and 144.
  • narrow, elongate slots 382 are arranged at spaced locations along the webs 80, 106, 176, 226, 278 and 330, typically about 3 inches by 1/2 inch, spaced an inch apart, for reducing the heat conductivity through a wall, in case of fire on one or the other sides of the wall.
  • horizontal studs 54, 170, 220, 272 and 324 could have 3/16-inch by 2-1/4-inch vent holes 384 added, with 3/4-inch spacing, similar to the vent holes 104 in stud 100.
  • these 1/2-inch or 5/8-inch wallboards may be screw applied with their long dimension horizontal or vertical or with one layer horizontal and one layer vertical. All-vertical application is normally preferred, with joint locations staggered.
  • all-horizontal studs 54, 170 and 220 in side wall 10 with tabs 86, 190 and 236 extending downward although this is the preferred construction, the walls could be constructed with tabs 86, 190 and 236 extending upward; that is, by reversing the horizontal studs 54, 170 and 220 and reversing the core boards 52 and 222.
  • Figs. 7 and 8 show how two 2-foot-wide core boards 52 and 222 or 102 can be manufactured as a substitute for the more common standard 2-foot-wide core board.
  • a 4-foot-wide, 1-inch-thick, paper-covered gypsum board 146 is shown with a jagged break line 148 in the center of board 146.
  • the wide board 146 can be broken in half to form two core boards 52 or 222.
  • a 4-foot-wide, 1-inch-thick, paper-covered gypsum board 158 is shown with a jagged break line 160 in the center of board 158.
  • the wide core board 158 can be broken in half to form two core boards 102.
  • the present invention has an added advantage in that the rough, jagged edges formed by breaking wide gypsum boards 146, 158, extend into a 60° channel in either of the horizontal studs 5, 100 or 220 where the jagged edges present no problem.
  • a wall in accordance with the invention involves constructing, essentially, a two-foot wall with the lowest core board 52, then a four-foot wall with the second lowest core board 52, etc. Construction of these walls can be stopped at any two-foot multiple height. Accordingly, a desired four-foot wall can be erected with no extra trouble for use as a temporary safety wall around an elevator shaft prior to the time when a complete elevator shaft wall is desired, leaving access to the shaft, over the four-foot wall, during early phases of construction, for easy installation of cants or the like.
  • core boards can be omitted or removed from between the top horizontal stud and the ceiling track without weakening substantially the resultant wall, as occurs in prior vertical stud structures, wherein portions of vertical studs must be cut away. This omission is sometimes necessary to install elevator rail supports/brackets.
  • the construction of walls in accordance with the invention is easier and faster than prior shaft walls, and is suitable for construction from one side, the side opposite the shaft.
  • Contributing most to the ease of erection is the use of the horizontal stud with a wide, angled-bottom channel into which the bottom edge of each core board is fed.
  • the web of the stud includes structure for guiding the bottom edge of the core board laterally toward the stud's inner flange, under the urging of gravity.
  • the guide structure comprises web diagonal portion 186; in Fig. 10, it comprises web diagonal portion 232; in Fig. 11, it comprises upwardly and outwardly extending lip portion 296 and angled portion 292; and in Fig.
  • the guide structure comprises web ramp portion 350.
  • This type of guide structure facilitates positioning of the core board at the desired location on the stud by an assembler whose vision of that location can be impeded by the core board during assembly.
  • the guiding function results from the presence of web structure which is engageable with the lower edge of the core board and which is inclined downwardly and inwardly toward the inner flange of the stud which, in the preferred embodiments, includes an upper portion having a double thickness of sheet metal.
  • That part of the core board adjacent its lower edge is positioned adjacent the double thickness of sheet metal on the inner flange, and that feature functions to retain the core board in place, during a fire, for a relatively long period of time compared to an inner flange having a single thickness of sheet metal at that location.
  • the invention has been described as a shaft wall for construction around elevator shafts, its advantages will be equally available when the wall is constructed anywhere else, such as around stairwells or as area separation walls of the type commonly constructed between adjoining condominiums and townhouses. It is presently contemplated that the walls of the present invention can be successfully constructed with heights of up to about 36 feet, compared to about 12 feet for a similar sized vertical stud of prior shaft walls. If core boards can be made with greater resistance to crushing than presently normal, there would be no reasonable height limitation. Conversely, prior shaft walls required vertical studs with dimensions of more than 2-1/2 inches flange-to-flange when the wall exceeded the normal heights.
  • 4-inch and 6-inch flange-to-flange vertical studs were required for constructions when heights increased above about 14 feet.
  • the present invention provides a system wherein the 2-1/2-inch flange-to-flange dimension is adequate regardless of wall height.
  • the horizontal stud of the present invention requires the same or less metal than any prior shaft wall stud.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Load-Bearing And Curtain Walls (AREA)
  • Finishing Walls (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Building Environments (AREA)
  • Body Structure For Vehicles (AREA)
EP93302113A 1992-03-27 1993-03-19 Shaft wall and horizontal metal stud therefor Withdrawn EP0562779A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85879792A 1992-03-27 1992-03-27
US858797 1992-03-27

Publications (1)

Publication Number Publication Date
EP0562779A1 true EP0562779A1 (en) 1993-09-29

Family

ID=25329210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93302113A Withdrawn EP0562779A1 (en) 1992-03-27 1993-03-19 Shaft wall and horizontal metal stud therefor

Country Status (12)

Country Link
EP (1) EP0562779A1 (zh)
JP (1) JP2711350B2 (zh)
KR (1) KR0151171B1 (zh)
AU (1) AU663902B2 (zh)
BR (1) BR9301312A (zh)
CA (1) CA2069559C (zh)
IL (1) IL103715A (zh)
MX (1) MX9205220A (zh)
MY (1) MY109407A (zh)
NO (1) NO303026B1 (zh)
SG (1) SG43790A1 (zh)
TW (1) TW278108B (zh)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5740644A (en) 1995-02-08 1998-04-21 National Gypsum Company Wall with horizontal metal stud and reinforcement channel therefor
EP0841443A1 (de) * 1996-11-12 1998-05-13 Richter-System GmbH & Co. KG Eckverbindung für beplankte Wände
ITBS20090147A1 (it) * 2009-08-05 2011-02-06 Wood Beton S P A Struttura prefabbricata autoportante per vano scala e ascensore e relativo montaggio
GB2565266A (en) * 2017-06-20 2019-02-13 Ash & Lacy Holdings Ltd Mounting rail
CN109356346A (zh) * 2018-11-28 2019-02-19 金螳螂精装科技（苏州）有限公司 一种3d布艺背景墙安装结构
CN113896074A (zh) * 2021-11-04 2022-01-07 哈尔滨迪康电梯制造有限公司 一种电梯井道结构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3714108B2 (ja) * 2000-04-13 2005-11-09 コクヨ株式会社 パネル
JP5844580B2 (ja) 2011-09-05 2016-01-20 浜松ホトニクス株式会社 固体撮像素子及び固体撮像素子の実装構造
CN109941862A (zh) * 2019-04-22 2019-06-28 浙江浩圣电梯导轨有限公司 一种t型空轨及其对应的制作方法
CN113216559B (zh) * 2021-02-08 2023-01-10 斯迈普电梯(中国)有限公司 一种梁贯通式轻钢龙骨电梯井道体系

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3740912A (en) * 1971-11-12 1973-06-26 Nat Gypsum Co Fire retardant shaft wall
US4074486A (en) * 1975-10-23 1978-02-21 Multuloc Corporation Panel wall construction
US4353192A (en) * 1976-10-08 1982-10-12 Pearson Robert J Fire-resistant metal stud

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921346A (en) * 1971-11-12 1975-11-25 Nat Gypsum Co Fire retardant shaft wall
US4435936A (en) * 1982-02-08 1984-03-13 National Gypsum Company Metal stud
GB2190935B (en) * 1986-05-22 1990-02-21 Bpb Industries Plc Spacer members for wall or lining structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3740912A (en) * 1971-11-12 1973-06-26 Nat Gypsum Co Fire retardant shaft wall
US4074486A (en) * 1975-10-23 1978-02-21 Multuloc Corporation Panel wall construction
US4353192A (en) * 1976-10-08 1982-10-12 Pearson Robert J Fire-resistant metal stud
US4353192B1 (zh) * 1976-10-08 1988-09-27

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5740644A (en) 1995-02-08 1998-04-21 National Gypsum Company Wall with horizontal metal stud and reinforcement channel therefor
EP0841443A1 (de) * 1996-11-12 1998-05-13 Richter-System GmbH & Co. KG Eckverbindung für beplankte Wände
ITBS20090147A1 (it) * 2009-08-05 2011-02-06 Wood Beton S P A Struttura prefabbricata autoportante per vano scala e ascensore e relativo montaggio
GB2565266A (en) * 2017-06-20 2019-02-13 Ash & Lacy Holdings Ltd Mounting rail
GB2565266B (en) * 2017-06-20 2021-08-25 Ash & Lacy Holdings Ltd Mounting rail
US11293187B2 (en) 2017-06-20 2022-04-05 Ash & Lacy Holdings Limited Mounting rail
CN109356346A (zh) * 2018-11-28 2019-02-19 金螳螂精装科技（苏州）有限公司 一种3d布艺背景墙安装结构
CN113896074A (zh) * 2021-11-04 2022-01-07 哈尔滨迪康电梯制造有限公司 一种电梯井道结构

Also Published As

Publication number Publication date
IL103715A0 (en) 1993-04-04
KR0151171B1 (ko) 1998-10-15
MX9205220A (es) 1993-09-01
KR930019953A (ko) 1993-10-19
JP2711350B2 (ja) 1998-02-10
SG43790A1 (en) 1997-11-14
TW278108B (zh) 1996-06-11
NO930908D0 (no) 1993-03-12
IL103715A (en) 1996-06-18
NO303026B1 (no) 1998-05-18
CA2069559A1 (en) 1993-09-28
CA2069559C (en) 1998-04-28
AU663902B2 (en) 1995-10-26
MY109407A (en) 1997-01-31
BR9301312A (pt) 1993-10-05
JPH06341180A (ja) 1994-12-13
AU2995792A (en) 1993-09-30
NO930908L (no) 1993-09-28

Similar Documents

Publication Publication Date Title
US5724784A (en) Shaft wall and horizontal metal stud therefor
US5740644A (en) Wall with horizontal metal stud and reinforcement channel therefor
US3830027A (en) Panel construction
EP0247811B1 (en) Wall or lining structure
US6799404B2 (en) Wall panel assembly and method of assembly
US6761005B1 (en) Joist support member
US6854237B2 (en) Structural walls
US4672785A (en) Modified runner and area separation wall structure utilizing runner
US7207148B2 (en) Wall structures
CA2109676C (en) Multiple use corner clip
EP0562779A1 (en) Shaft wall and horizontal metal stud therefor
US4608801A (en) Floor bracing member for a ceramic tile floor
US5094052A (en) Building wall construction
US3589089A (en) Structural beam for ceiling suspension system
US3740912A (en) Fire retardant shaft wall
US6158189A (en) Wooden I-beam and wooden structural beam and bridging assembly
US2294554A (en) Fireproof enclosure for building frames
EP0243134B1 (en) Wall
US5485706A (en) Offset forming of structural components
CA2095758A1 (en) Corner clips for horizontal framing
US3061979A (en) Building block structures and components
CA2169101C (en) Shaft wall and horizontal metal stud therefor
CA2109677C (en) Vertical post assembly
EP0469801A2 (en) Wall
CA2245149A1 (en) Relocatable modular concrete block partition system

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE DK ES FR GB IE IT NL SE

17P Request for examination filed

Effective date: 19940228

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NATIONAL GYPSUM COMPANY

17Q First examination report despatched

Effective date: 19951107

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20000513