WO2004097128A2 - Ameliorations de fermes - Google Patents

Ameliorations de fermes Download PDF

Info

Publication number
WO2004097128A2
WO2004097128A2 PCT/US2004/012588 US2004012588W WO2004097128A2 WO 2004097128 A2 WO2004097128 A2 WO 2004097128A2 US 2004012588 W US2004012588 W US 2004012588W WO 2004097128 A2 WO2004097128 A2 WO 2004097128A2
Authority
WO
WIPO (PCT)
Prior art keywords
truss
section
members
elongated structural
cross
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2004/012588
Other languages
English (en)
Other versions
WO2004097128A3 (fr
Inventor
William Stonecypher
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.)
Individual
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
Publication of WO2004097128A2 publication Critical patent/WO2004097128A2/fr
Publication of WO2004097128A3 publication Critical patent/WO2004097128A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces

Definitions

  • This application relates to the design of trusses.
  • the invention resides in a new truss geometry.
  • the "channei truss” employs parallel Longitudinal members or chords (typically four) to define the truss cross-section (typically rectangular) .
  • the "channel truss” also employs at least one additional ' (typically fifth) longitudinal member, also parallel to the other members, that additional member recessed within the cross-section defined by the other members, away from the planes passing through adjacent chords.
  • the additional member is structurally interconnected with the other members, but the design of the "channel truss" is such that no structural elements impinge in the volume defined by the additional member and two adjacent main chords. The result is a truss having an open channel defined within its profile, ' which channel and fifth member have advantages that will be described below.
  • FIG.l is a section through a prior art truss having a rectangular truss having a rectangular crosssection.
  • FIG.2 is a side elevation of the prior art truss of FIG.l.
  • FIG.3 is a section through a "channel truss" of the present invention.
  • FIG.4 is a side elevation of the "channel truss” of FIG.3.
  • FIG.5 is a top/plan view of the "channel truss” of Figures 3 and 4. • '
  • the application relates to trusses.
  • This application relates to a novel improvement.
  • FIG.l a crosssection illustrating the minimum set of structural elements required by a rectangular truss., our longitudinally-extending. nd parallel members "chords" 401, 402, 403, and 404 are provided, comprising extruded aluminum tubing, typically having an outer diameter in the 1.9" to 2" range. Typically, they are disposed to form a rectangular cross-section. (However, trusses using three such members to form a triangular crosssection are known.)
  • -Cross-bracing 411, 412, 413, and 414 of aluminum extrusion, having the same or a smaller diameter than the chords, is used to connect the parallel members 401, 402, 403, and 404.
  • Such crossbracing can be on the diagonal (as seen in the side ' elevation of FIG.2) and/or at right angles to the members, forming "rungs".
  • FIG.3 where a "channel truss" is illustrated cross- section.
  • the "channel ' truss” employs -parallel longitudinal members or chords 401, 402, 403, and 404 (for those trusses having a rectangular cross-section) .
  • the "channel truss” also employs at least one additional longitudinal member 501, also parallel to the other chords 4.01, 402, 403, and 404, that additional member 501 recessed within .the cross-section defined ' by chords 401, 402, 403, and 404, and away from planes passing through adjacent such, chords .
  • the additional member 501 is structurally interconnected with the chords 401, 402, 403, and 404, but the design of the "channel truss" is such that no structural elements impinge in the' volume defined between the additional member 501 and. two adjacent main chords, in the illustrated example, chords 40-1 and 402. '
  • a truss having an open channel, of generally triangular profile, defined within its cross-section or profile, which channel and additional member have a number o-f " advantages :
  • most trusses must accommodate quantities of multi-conductor cable running parallel to their longitudinal axis ' , typically laid along the top face of their rectangular cro-ss-section.
  • Considerable quantities of such cable may be involved, particularly on trusses used to support lighting fixtures .
  • such cables may need to be tied or taped down to prevent their falling off, and can present a sloppy appearance when seen in profile on the truss in use.
  • cable underfoot can interfere with his or her footing, presenting a safety hazard.
  • truss application Another aspect of truss application is the need to balance certain loads under the truss itself. If, for example, a •loa'd (such as a piece of scenery) is hung from a truss, it is most ' conveniently hiing from one chord or the other on the "bottom" side. The result, however, is that the load is asymmetrically applied to the truss causing (among other effects) the truss to rotate about, its- longitudinal axis, dropping one lower chord relative to the other, and causing the truss to seek its displaced center of gravity, shifting away from the heavier side. Techniques • to compensate (notably changing the relative lengths of the two legs of.
  • the "spanssts" used to hang the truss to a supporting chain motor complicate the setup and are not exact.
  • the truss is g'sround-s.upporterd by a lift or tower, such compensation is difficult or impossible, and the offset load will result in undesirable stresses on the system, including side loads and increased friction in the lifting process,.
  • the "channel truss” affords the additional member 501, which is centered.
  • channel truss Another advantage of the "channel truss” is the “masking” that it affords to the adjacent edge of scenic and other elements attached to it. With the 'use of “channel truss”, scenic elements or material can be attached to the additional member 501, not only centering it under the truss, but recessing the edge of the element behind the visible face of the truss, for a better appearance.
  • a piece of scenery or soft goods it is desirable for a piece of scenery or soft goods to maintain a sliding connection with a linear track or cable to keep the attached edge in substantially the same plane.
  • An example might be a curtain, which would otherwise billow out of the plane of the guide wire or track, potentially striking or fouling on other objects.
  • a Guide wire adapter provided with pass holes that permit it to be sandwiched between the adjacent ends of any two truss sections or a truss section and another element.
  • the adaptor provides pass holes, through which the same bolts used to attach the truss sections pass.
  • the adaptor also mounts a means for attaching a guide wire, such means as a shoulder eye bolt. With one such guide wire adapter attached at each end of the desired travel, a guide wire may be stretched between the opposing eyebolts on the two guide wire adapters. The result is a guide wire recessed in the channel of the "channel truss". The result is a more attractive appearance and a substantially decreased likelihood that the guide wire itself will present a fouling hazard when not in use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

La présente invention concerne un tronçon de ferme comprenant au moins trois éléments structurels allongés parallèles, ces éléments définissant une première section transversale, ces éléments possédant deux extrémités et ces tronçons de ferme comprenant un organe de couplage par extrémité d'une pluralité de ces tronçons de ferme de façon à assembler une portée plus longue. Cette amélioration comprend un élément structurel allongé additionnel parallèle aux deux autres éléments structurels allongés au moins et interconnecté structurellement à ceux-ci, cet élément structurel allongé additionnel étant situé sensiblement à l'intérieur de la section transversale, de façon à définir entre ces deux autres éléments au moins et cet élément additionnel un volume allongé possédant une section transversale généralement triangulaire.
PCT/US2004/012588 2003-04-25 2004-04-23 Ameliorations de fermes Ceased WO2004097128A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46557703P 2003-04-25 2003-04-25
US60/465,577 2003-04-25

Publications (2)

Publication Number Publication Date
WO2004097128A2 true WO2004097128A2 (fr) 2004-11-11
WO2004097128A3 WO2004097128A3 (fr) 2005-03-10

Family

ID=33418257

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/012588 Ceased WO2004097128A2 (fr) 2003-04-25 2004-04-23 Ameliorations de fermes

Country Status (2)

Country Link
US (2) US20040244327A1 (fr)
WO (1) WO2004097128A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8066200B2 (en) * 2008-03-12 2011-11-29 Hilltrac, Inc. Hollow structural members, a rail system and methods of manufacturing
US8572924B2 (en) * 2010-07-30 2013-11-05 Production Resource Group, Llc Truss hub and parts with variable configurations
US20150324937A1 (en) 2014-04-01 2015-11-12 Michael Callahan Food and beverage preparation and retailing

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3562994A (en) * 1968-09-30 1971-02-16 Carl V Von Linsowe Truss
US3634989A (en) * 1970-01-19 1972-01-18 Cyril B Rogers Modular tower
CH636929A5 (de) * 1979-04-18 1983-06-30 Pantex Stahl Ag Gittertraeger fuer den untertag-strecken- und -schachtausbau.
US4253210A (en) * 1979-09-10 1981-03-03 Andre Racicot Metal truss structure
US4825620A (en) * 1986-04-07 1989-05-02 Johnson David W Structural support of interlocking lattice construction
US5390463A (en) * 1993-11-24 1995-02-21 Penn Fabrication (U.S.A.) Inc. Modular truss structure
US5561949A (en) * 1994-10-07 1996-10-08 Universal Forest Products, Inc. Tie-down strap for building truss
US5729948A (en) * 1996-08-29 1998-03-24 Levy; Tzadok Apparatus and method for rigidly joining construction elements to one another
US6079178A (en) * 1998-10-09 2000-06-27 Tomcat Global Corporation U-shaped stackable truss
US6408587B2 (en) * 1999-12-24 2002-06-25 Total Fabrications Limited Structural members and associated parts
US6513299B1 (en) * 2000-09-18 2003-02-04 Valmont Industries, Inc. Antenna support
US6993880B2 (en) * 2002-11-01 2006-02-07 Keymark Enterprises, Llc Apparatuses and methods for manufacture and placement of truss assemblies

Also Published As

Publication number Publication date
US20070151193A1 (en) 2007-07-05
WO2004097128A3 (fr) 2005-03-10
US20040244327A1 (en) 2004-12-09

Similar Documents

Publication Publication Date Title
US10329781B2 (en) Safety barrier netting system
CN114673088B (zh) 一种应用于空间主缆悬索桥猫道的施工方法
JPH0637790B2 (ja) トラス、同トラスを含む建築構造物及び同建造物を組み立てる方法
CN206722429U (zh) 一种屋面彩钢压型板运输系统
US9962620B2 (en) Loft block with aligned sheaves
CN105625645B (zh) 吊挂式钢结构采光天窗施工方法
US20070151193A1 (en) Trussees
CN105586832A (zh) 悬挂式猫道面网安装系统
CN105735103B (zh) 一种便携式快速安装的可拆卸徒步桥梁
KR101794745B1 (ko) 비대칭 사장케이블에 의해 지지되는 반원형의 하늘길 교량
CN203684625U (zh) 悬空索管复合式满堂脚手架施工平台及防护系统
RU2475386C1 (ru) Транспортная система юницкого и способ построения струнной транспортной системы
US11680418B2 (en) Assembly for erecting and dismantling a common tower adjacent a building structure and a method of erecting and dismantling the same
CN103216007A (zh) 推拉式环保舱体化房屋单元
CN116623861B (zh) 一种折叠式的吊顶结构
JP2022161767A (ja) 梯子固定ユニットおよび梯子固定方法
CN223693636U (zh) 一种施工现场临时电缆架空支架
US20250019969A1 (en) Roofing structure
CN219436552U (zh) 一种加强型大跨距水平电缆桥架
TWI776062B (zh) 懸吊施工平台及使用此懸吊施工平台的施工方法
CN216109621U (zh) 一种用于桁架安装的双层操作平台及施工体系
CN105569282B (zh) 吊挂钢结构采光天窗
CN120331139A (zh) 一种应用于大跨径中央塔空间缆悬索桥猫道的施工方法
CN216355801U (zh) 一种梯式镀锌电缆桥架
CN120368260A (zh) 一种可拼装可移动的灯光桥

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase