WO2001048334A1 - Echafaudage - Google Patents

Echafaudage Download PDF

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Publication number
WO2001048334A1
WO2001048334A1 PCT/AU2000/001580 AU0001580W WO0148334A1 WO 2001048334 A1 WO2001048334 A1 WO 2001048334A1 AU 0001580 W AU0001580 W AU 0001580W WO 0148334 A1 WO0148334 A1 WO 0148334A1
Authority
WO
WIPO (PCT)
Prior art keywords
poles
assembly
platform
pole
foot member
Prior art date
Application number
PCT/AU2000/001580
Other languages
English (en)
Other versions
WO2001048334A8 (fr
Inventor
John Robert Vincent
Gregory Edward Seigel
Original Assignee
Alltrades Pty. Limited
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 Alltrades Pty. Limited filed Critical Alltrades Pty. Limited
Priority to AU50637/02A priority Critical patent/AU5063702A/en
Publication of WO2001048334A1 publication Critical patent/WO2001048334A1/fr
Publication of WO2001048334A8 publication Critical patent/WO2001048334A8/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/38—Scaffolds partly supported by the building
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/22—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by roofs or ceilings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
    • E04G5/041—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffolds on roof frameworks or on roofs

Definitions

  • THIS INVENTION relates to improvements in the building industry and is more specifically concerned with a novel form of scaffolding capable of being erected relatively quickly and cheaply alongside the wall of a building.
  • the scaffolding is principally, 5 although not exclusively, for use in the housing industry where construction does not exceed three storeys.
  • Conventional scaffolding uses short steel poles and scaffolding clips which secure the poles together.
  • the poles which provide standards are braced diagonally and ties are
  • scaffolding is used to provide a safe working platform.
  • the traditional way of erecting a safe platform is to provide scaffolding from the ground- up, to support the platform. Because of the time and cost involved in using traditional scaffolding systems, safety standards are not universally enforced and the risks involved have been largely accepted in the building industry. Additionally, smaller building allotment sizes and reduced set-back from boundaries has made it difficult to use conventional scaffolding.
  • a scaffolding assembly includes: poles for mounting in a line along a wall of a building so that the poles are upright and arranged in a spaced, parallel relationship; a base for supporting the lower end of each pole in its chosen position; supports mountable on the poles at a selected height to enable a horizontal platform to be supported by the poles beside the wall; attachments connectable to the upper end-portions of the poles; foot members temporarily securable to the lower-end portions of respective sloping roof trusses of the building; and, arms extending between the attachments and the foot members for holding the poles upright; in which assembly the foot members have parts for locating the foot member against the upper, lower and side faces of the roof trusses, the parts being so positioned lengthwise of the foot member, and so shaped, that engagement and release of the foot member from the truss are achieved, respectively by twisting the foot member in opposite directions with respect to the longitudinal axis of the truss.
  • the present invention thus provides a new form of scaffolding for use alongside the wall of a building and in which working platforms rest on horizontal bars which are supported at opposite ends by other bars attached to the poles by means of brackets. It may also be designed to allow edge protection above or below the lower perimeter of the roof-line and enables a work platform to be erected and dismantled at different working levels.
  • poles are of square or rectangular cross-section.
  • the foot member may be designed to be also temporarily secured to a horizontal rafter or top plate of the building instead of a sloping roof truss. It may also be equipped with an adjustable component to enable the arm to remain horizontal despite the foot member being at an angle to the horizontal.
  • the platform supports include the brackets and can be fixed to the poles at chosen positions which enable said other bars to be attached to them by spigot-and socket or other quick-release connections.
  • the brackets may be designed to be f itted t o the pole from its end or, alternatively, from the side. A fitting on, through, or under the bracket may then be used to prevent accidental dislodgment of the bracket from its chosen position on the pole.
  • Some of the brackets conveniently have parts which provide respective connections enabling ends of respective platform support bars to be mounted in them and which will allow the bars to project horizontally from the bracket at opposite sides of the pole and opposite to one another.
  • the bars of the platform support may be designed for locating directly on the poles by using means which temporarily attach one to the other.
  • brackets have side shelves which enable the ends of a platform plank, extending between neighbouring poles, to be safely held with its upper surface continuous with the upper surfaces of other planks of the platform.
  • the foot member is provided with flat surfaces for clasping the sides of the roof-truss.
  • a part for preventing sliding movement of the member down the truss may also be provided and shaped to bite into the surface of the truss at the lower end of the member. However this is optional.
  • a screw fixture at the heel end- portion of the foot member is provided to allow for adjustment where the roof truss is undersized.
  • FIGURE 1 is a diagrammatic perspective view, partly broken away of a section of a scaffolding assembly erected along the side of a wall of a building in a split platform mode;
  • FIGURE 2 shows a scaffolding pole, partly broken away, together with three scaffolding platforms, the upper end of the pole being held to a roof truss by an arm and a connection fixture and the lower end of the pole resting on a jack-adjustable base at
  • FIGURES 3A, 3B and 3C are respective perspective views, to an enlarged scale, of three , c different forms of bracket support used in conjunction with the scaffolding pole which is inserted endwise through openings in the three brackets;
  • FIGURE 4 is a diagrammatic perspective view of a different construction of bracket support designed to be applied to the pole from one side and for securing the upper end of the pole, by way of the arm and connection fixture to a roof truss of the building;
  • FIGURE 5 is a perspective view of a foot member used to provide the attachment of the 0 arm to a roof truss;
  • FIGURE 6 is a diagrammatic plan view of the foot member of Figure 5;
  • FIGURE 7 is an end view of the foot member of Figure 5; and, FIGURE 8 shows how the described embodiment of the invention can be used to support scaffolding on a building having a set-back, upper wall
  • Figure 1 shows part of a two storey building 1 having a brick side-wall 2 extending up to a sloping roof 3 provided with wooden roof trusses 4
  • a set of spaced parallel, upright scaffolding poles 5 of square cross-section are arranged spaced from the outside of the wall 2 and are supported at their upper ends by connection fixtures 6 which are connected by angle bars 7 to foot members 8 attached to the lower end-portions of the roof trusses 4 which slope down beyond the upper end of the wall 2
  • connection fixtures 6 which are connected by angle bars 7 to foot members 8 attached to the lower end-portions of the roof trusses 4 which slope down beyond the upper end of the wall 2
  • the lower ends of the poles 5 are secured in or on adjustable jacks 9 resting on sole boards 98 and enabling the bottom level of each of the poles 5 to be adjusted, as shown in Figure 2
  • the poles 5 are hollow and have three different forms of support bracket 10 shown in Figures 3A, 3B and 3C, respectively, which can be moved to respectively different vertical positions along the poles as shown, and then fixed by passing bolts through the poles as shown in Figure 2 or by being clamped in position
  • These three forms of bracket will now be described in more detail with reference to figures 3A, 3B and 3C respectively
  • the bracket 10 basically comprises a steel section 1 1 having a square, cross-section opening passing through it and through which the pole 5 is inserted
  • two parallel sides of the section 1 1 each have welded to it one end of a steel box 12 the sides of which are open
  • the bracket 10 shown in Figure 3A has a pair of rectangular boxes 13, 14 which open respectively upwardly and horizontally, and are respectively welded into openings in the box 12
  • a channel plate 15 providing a horizontal shelf 90 for supporting one end of a foot plank extending between two neighbouring poles 5, is welded to the channel section 1 1 and the two boxes 12, and provides a robust attachment of the boxes to the section 1 1 .
  • One or more holes 16 permit locking bolts (not shown) to be passed through the section 1 1 and through a pair of registering holes in the pole 5 at vertically spaced positions at which the bracket 10A is to be located on the pole.
  • An anchor hole 91 is also provided in the shelf 90 to fix one end of a supported plank to it.
  • the bracket 10 shown in Figure 3B is similarly constructed to the bracket 10A except that the vertical box 13 is replaced by a second horizontal box 14 which is axially aligned with the first horizontal box 14, as illustrated.
  • the sides of the U-section 120 have a pair of aligned openings 17 enabling a locking bolt (not shown) to be passed through them.
  • An angle stop 18 is welded to each side of the box 1 1 at a i g position spaced beneath each of the U-sections120.
  • brackets 10 attached at different chosen vertically-spaced positions on the pole 5.
  • the lowermost bracket 10, which is shown in Figure 3 has located in its U-sections 1 20 the vertical lower end-portions of V-shaped platform support bars 170 which slope
  • the bar 170 may be made in one piece as shown, or it may comprise two straight bars fixed into a connection piece (not shown) attached to the outer ends of the horizontal support bars 20.
  • the other ends of the bars 20 are socketed into respective horizontal aligned boxes 14 of
  • Bracket 10 the next bracket 10 above. This is constructed as shown in Figure 3B.
  • the horizontal bars 20 associated with a line of poles 5 each support two horizontal planks 21 as shown in Figure 2 and which extend side-by-side to provide a platform on which workmen can stand when working on the building.
  • the inverted channel plates 15 on the brackets 1 0 shown in Figure 3A and 3B are arranged so that their shelves 90 support the opposite
  • brackets 10 supports a wide platform extending between opposite sides of the pole 5.
  • a split level platform is formed with one part at a higher level than the other part.
  • each level of the split platform comprises three planks 5 which have coplanar upper surfaces and the planks of respective platforms which extend between the poles at different levels overlapping one another vertically.
  • Stanchion posts 23 of different lengths are fitted at their lower ends into sockets 29 at the end of the arms 20 and the bar 7, and in the box 13 of the bracket of Figure 3A t o provide protection for a workman.
  • the stanchion posts 23 have carriers 24 for 10 supporting horizontal rails (Figure 1 ) and further carriers 124 for supporting toe or kick boards (Figure 1 ) arranged on edge and extending between the stanchions 23.
  • the upper end-portion of the pole 5 is positioned by the connecting fixture 6 of H-shape providing two horizontally spaced vertical sleeves 151 and 152 of square cross-section.
  • the sleeve 151 is a sliding fit on the pole 5 and has internally-threaded lateral openings
  • a horizontal bar 154 interconnects the sleeves 151 and 152, and the latter sleeve 152 is a sliding fit on the lower portion of the upper stanchion 23 which has a stepped spigot at its lower end to engage in the socket 29 formed in the upright limb of an angle arm 1 60 o which also provides a horizontal bar 7.
  • the upper end-portion of the pole 5 may also be positioned by the collar bracket 6 shown in Figure 4.
  • This is a robust collar of square cross-section and has one side 30 hinged at 31 to allow it to be opened so that the pole 5 can be fitted into the bracket 6 from one side.
  • the Figure shows the side 30 in its open position.
  • the hinged side 30 can be 5 locked in its closed position by a bolt 133 passing through aligned rings 130 so that the bracket 6 cannot be opened and dislodged from the pole 5.
  • a bar 7 is welded at one end to the collar bracket 6 and a trapezium-shaped gusset plate (not shown) provides a robust connection between them.
  • Holes 134 provided in the sides of the collar bracket 6 enable locking bolts (not shown) to be passed through them and through registering holes in the poles 5.
  • the foot member 8 shown in figures 5, 6 and 7, secures the bar 7 to one of the roof trusses 4 and is of channel shape. It provides a flat sole 32 which rests on the upper
  • the foot member 8 has a toe end-portion 33 having a vertical lug plate 34 welded to one side.
  • An angle plate 39 provides a horizontal limb 29 extending beneath the roof truss 4 and an upright limb outside the lug plate 24.
  • a slot 35 in the upright limb receives a bolt 27 and enables the wing nut 36 to be tightened t o clamp the position of the angle plate 39.
  • An adjustment screw 28 at the toe end- ⁇ n portion 33 of the foot member 8, can be tightened in order to enhance the grip of the foot member 8 on the truss 4 if of non-standard cross-section.
  • the foot member 8 is provided nearer its heel 40 and on its side opposite the lug plate 34, with a small parallel plate 49 positioned to lie against the opposite side of the truss 4 to the plate 34.
  • the truss is thus effectively clasped between the plate 49, horizontal 5 limb 29 of the angle plate 39, plate 34 and the sole 32 of the foot member 8.
  • the foot member can be mounted in position on the truss 4, and freed from its mounted position, by twisting it in respectively opposite directions with respect to the truss longitudinal axis.
  • the holes 44 are pre-set to enable arm bar 7 to remain horizontal when foot member 8 is located on trusses with different roof pitch angles.
  • a locking pin 43 is inserted into one of the arc of holes 44 so that the angle between the bar 7 and the sole 32 of the foot 5 member 31 can be varied and then maintained.
  • An adjustable and lockable upright bolt passes through a threaded opening in the block and bears on the 5 upper surface of the sole of the foot member 8 By turning the bolt, the block and thus the arm 7 can be moved to a chosen angular position about the pivot pin 42 with respect to the sole 32 of the foot member 8
  • the poles 5 providing the support for the scaffolding are placed along the side of the wall 2 to be worked on Normally they will stand about one metre from the wall and will be spaced from one another by about two metres
  • Each foot member 8 is placed on the lower end-portion of a respective roof-truss 4 to which a corresponding pole 5 is to be attached, and is so arranged that the horizontal limb 29 of the angle plate 39 lies flush
  • Arm bar 7 is located at the desired angular position by selecting the appropriate hole 44 for the bolt 43 This ensures the socket 29 and its stanchion 23 are maintained vertical 2o readiness for attachment of the H-shaped fixture 6 which completes the connection t o the top end-portion of the pole 5
  • Each of the brackets 10 is fitted over one end of the pole and moved to its desired position at which it can be fixed by pins passing through the holes 16
  • the lower ends of the poles 5 are next located on their respective sole boards 98 and their upper end est portions, which up to this time have been resting against the eaves of the building and after having the fixture 6 attached, are moved to upright positions and the sleeves 1 52 encircling lower portions of the upper stanchions 23 which are then f itted into their respective sockets 129
  • the double sleeve fixture 6 is now connected between the pole 5 and the foot member 8, by way of the stanchion 23 and the arm bar 7 so that the poles are held in their upright positions at both ends.
  • Figure 8 shows how scaffolding assembly poles 5 can be used on a building having an upper wall 61 which is set back in relation to a lower wall 62. Each wall has associated roof trusses 4. Parts of the scaffolding assembly which are identical to those already described carry the same reference numerals. To avoid unnecessary repetition, these will not be again described.
  • the poles 5 are arranged in spaced parallel relationship alongside the upper wall 61 as shown, and their upper ends are each held to a chosen roof truss 4 of the upper roof, by a bracket 6, an arm bar 7 and a foot member 8, as has already been described.
  • the lower ends of the poles 5 are socketed in cups held by z- shaped blocks /50 which are temporarily attached to respective trusses 4. If the trusses at the two levels in the building are not vertically aligned, a beam (not shown) can be placed between two foot members 8, and parallel to wall 61 , and the cups can be moved from the blocks J50 to chosen positions along the beam until located directly beneath the desired position for the lower end of the associated pole 5.
  • the brackets 10 may be provided individually with camming mechanisms (not shown) formed by rotatable cams mounted on shafts carried in bayonet slots formed in parallel plates extending from the brackets. Rotating the cams forces them against the poles in a direction which increases their force of engagement with the poles, with increasing weight on the bracket 10 produced by additional loading of the platform assembly it supports. This technique avoids any slight weakening of the poles 5 by providing them with holes.
  • brackets 10 are openable so that they can be mounted in position on the poles without having to thread the poles through them.
  • the plates 34 and 49 on alternate foot members are identically positioned on the right and left of the foot members respectively, whereas the remaining foot members 8 have the plates 34 and 49 respectively positioned on the left and right of the foot members.
  • the two variations of foot member 8 are mounted in alternation 0 on successive roof trusses 4. in this way the upper end of the scaffolding is equally braced against possible inclination in either direction in the common vertical plane containing the poles.
  • foot member 8 can also be used in conjunction with the 5 end-portion of a horizontal roof beam to provide a temporary anchorage for the upper end-portion of the pole 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Movable Scaffolding (AREA)
  • Ladders (AREA)

Abstract

L'invention concerne un échafaudage composé d'une série de montants ou d'échasses (5) comprenant des vérins (9) à leur extrémité inférieure, et dont les extrémités supérieures sont retenues par des supports de fixation en H (6) à un étançon (23) respectif. Les étançons (23) sont soutenus par les extrémités de bras horizontaux (7) montés sur des pieds (8) respectifs. Chaque pied (8) est conçu pour venir se fixer sur une ferme (4) respective. Des supports (10) situés sur les montants (5) soutiennent les extrémités opposées de barres de support (20) de la plate-forme horizontale sur lesquelles des planches (21) sont disposées côte à côte. Les supports soutiennent également les extrémités opposées d'une planche (21) qui s'étend entre les montants (5) et dont la face supérieure est situées sur le même plan que les planches (21) avoisinantes de la plate-forme.
PCT/AU2000/001580 1999-12-24 2000-12-22 Echafaudage WO2001048334A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU50637/02A AU5063702A (en) 1999-12-24 2000-12-22 Scaffolding

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPQ4888 1999-12-24
AUPQ4888A AUPQ488899A0 (en) 1999-12-24 1999-12-24 Scaffolding

Publications (2)

Publication Number Publication Date
WO2001048334A1 true WO2001048334A1 (fr) 2001-07-05
WO2001048334A8 WO2001048334A8 (fr) 2002-05-30

Family

ID=3819027

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2000/001580 WO2001048334A1 (fr) 1999-12-24 2000-12-22 Echafaudage

Country Status (2)

Country Link
AU (2) AUPQ488899A0 (fr)
WO (1) WO2001048334A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002084049A1 (fr) * 2001-04-18 2002-10-24 Andrew John Dunlop Systeme d'echafaudage pose sur le sol
GB2382837A (en) * 2001-12-04 2003-06-11 Peter Terence Coulthard Plastic scaffold system
WO2007137343A1 (fr) * 2006-05-26 2007-12-06 Bruce Charles Turner Abri
EP2698486A3 (fr) * 2012-08-14 2014-04-16 Hämeen Laaturemontti Oy Structure de support vertical pour le système de barrière de sécurité de toiture
CN108643562A (zh) * 2018-06-06 2018-10-12 北京住总第三开发建设有限公司 一种用于装配式工程现浇圈梁的模板体系及施工方法
CN118007917A (zh) * 2024-04-08 2024-05-10 山西省安装集团股份有限公司 一种土建施工用支架

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113279556A (zh) * 2021-04-23 2021-08-20 浙江省二建建设集团有限公司 一种用于旧房改造的装配式悬挂可滑动脚手架组件
CN114961227B (zh) * 2022-06-07 2023-07-11 中建八局第一建设有限公司 一种可周转式悬挑工字钢预埋装置及其实现方式

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1485597A (en) * 1997-02-24 1997-08-14 Colin George Leslie Whicker Attachment bracket
DE29718141U1 (de) * 1997-10-15 1998-01-29 Eberhard, Werner, 76767 Hagenbach Hängegerüst
AU8785998A (en) * 1997-10-02 1999-04-22 Vaughan Walls Australia Pty Ltd Support assembly for use in construction of a building
DE19830022A1 (de) * 1998-07-04 2000-01-13 Baumann Verwertungs Gmbh Vorrichtung zum Errichten eines Traufgerüstes
AU715623B3 (en) * 1999-09-21 2000-02-03 Chris Fermanis Scaffolding
AU728215B2 (en) * 1997-04-21 2001-01-04 Garry Lee Rowlands Safety rail

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1485597A (en) * 1997-02-24 1997-08-14 Colin George Leslie Whicker Attachment bracket
AU728215B2 (en) * 1997-04-21 2001-01-04 Garry Lee Rowlands Safety rail
AU8785998A (en) * 1997-10-02 1999-04-22 Vaughan Walls Australia Pty Ltd Support assembly for use in construction of a building
DE29718141U1 (de) * 1997-10-15 1998-01-29 Eberhard, Werner, 76767 Hagenbach Hängegerüst
DE19830022A1 (de) * 1998-07-04 2000-01-13 Baumann Verwertungs Gmbh Vorrichtung zum Errichten eines Traufgerüstes
AU715623B3 (en) * 1999-09-21 2000-02-03 Chris Fermanis Scaffolding

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002084049A1 (fr) * 2001-04-18 2002-10-24 Andrew John Dunlop Systeme d'echafaudage pose sur le sol
GB2382837A (en) * 2001-12-04 2003-06-11 Peter Terence Coulthard Plastic scaffold system
GB2382837B (en) * 2001-12-04 2003-12-03 Peter Terence Coulthard Scaffold system
WO2007137343A1 (fr) * 2006-05-26 2007-12-06 Bruce Charles Turner Abri
EP2698486A3 (fr) * 2012-08-14 2014-04-16 Hämeen Laaturemontti Oy Structure de support vertical pour le système de barrière de sécurité de toiture
CN108643562A (zh) * 2018-06-06 2018-10-12 北京住总第三开发建设有限公司 一种用于装配式工程现浇圈梁的模板体系及施工方法
CN108643562B (zh) * 2018-06-06 2023-11-07 北京住总第三开发建设有限公司 一种用于装配式工程现浇圈梁的模板体系及施工方法
CN118007917A (zh) * 2024-04-08 2024-05-10 山西省安装集团股份有限公司 一种土建施工用支架

Also Published As

Publication number Publication date
AU5063702A (en) 2002-06-03
WO2001048334A8 (fr) 2002-05-30
AUPQ488899A0 (en) 2000-02-03

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