EP1206611B1 - Echafaudage - Google Patents

Echafaudage Download PDF

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Publication number
EP1206611B1
EP1206611B1 EP00950116A EP00950116A EP1206611B1 EP 1206611 B1 EP1206611 B1 EP 1206611B1 EP 00950116 A EP00950116 A EP 00950116A EP 00950116 A EP00950116 A EP 00950116A EP 1206611 B1 EP1206611 B1 EP 1206611B1
Authority
EP
European Patent Office
Prior art keywords
scaffolding structure
arm
load bearing
members
bamboo
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.)
Expired - Lifetime
Application number
EP00950116A
Other languages
German (de)
English (en)
Other versions
EP1206611A1 (fr
EP1206611A4 (fr
Inventor
Yu Shing Room 601-5 6th Floor SO
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.)
Wui Loong Scaffolding works Co Ltd
Original Assignee
Wui Loong Scaffolding works Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from NZ336959A external-priority patent/NZ336959A/en
Priority claimed from AUPQ3192A external-priority patent/AUPQ319299A0/en
Application filed by Wui Loong Scaffolding works Co Ltd filed Critical Wui Loong Scaffolding works Co Ltd
Priority to EP07016534A priority Critical patent/EP1854940A1/fr
Publication of EP1206611A1 publication Critical patent/EP1206611A1/fr
Publication of EP1206611A4 publication Critical patent/EP1206611A4/fr
Application granted granted Critical
Publication of EP1206611B1 publication Critical patent/EP1206611B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/10—Steps or ladders specially adapted for scaffolds
    • 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
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G1/152—Platforms made of metal or with metal-supporting frame
    • 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
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G2001/155—Platforms with an access hatch for getting through from one level to another

Definitions

  • the present invention relates to scaffolding. More particularly, the invention relates to safety aspects of scaffolding.
  • bamboo has been traditionally used for scaffolding.
  • bamboo scaffolding is still in use in China and Hong Kong.
  • bamboo has a number of advantages.
  • bamboo is economical and can be simply constructed without special tools.
  • bamboo scaffolding can also be constructed within a short period of time in a limited working space.
  • the most significant advantage of bamboo scaffolding is its very strong bending strength and elasticity when freshly cut.
  • the strength of bamboo decreases as time goes by because it gradually dehydrates over time. When the water content has reduced below 10% the bamboo becomes dry and cracks will appear.
  • the maximum lifespan of bamboo scaffolding members is thus relatively short, only about 12 to 18 months. Thus bamboo is considered somewhat unreliable.
  • a scaffolding structure for a building being erected, the scaffolding structure comprising: a scaffold of a substantially two dimensional inner grid interconnected with a substantially two dimensional outer grid, each of the grids being comprised of load bearing members having relatively constant strength over time under expected loading conditions of the scaffolding structure characterised in that additional bamboo members are secured on the outer grid such that the interstices defined by the load bearing members and the bamboo members of the outer grid are smaller than the interstices defined by the load bearing members of the inner grid; and an anchoring device which includes: an arm coupled to the scaffold, the arm having a longitudinal axis; and an anchoring member anchoring the device and the scaffold to the building, the anchoring member being coupled to the arm and being of an L-shape having a first leg in the form of a rod or bar which extends beyond the arm, the rod or bar being anchored into the building and a second leg is coupled to said arm.
  • the load bearing members are elongate structural members intersecting in a regular pattern to form the grids.
  • the elongate members may be coupled by right angle metal couplers at all or some of the intersections in the grid.
  • the load bearing members are steel members, preferably of tubular cross section.
  • the load bearing members may comprise fibre reinforced plastic tubes.
  • the grids are preferably constructed of load bearing members arranged at 90° to each other although other configurations are possible. Each grid may therefore have upright load bearing standards and substantially horizontal load bearing ledgers. Desirably, at least some-of the load bearing ledgers in the inner grid correspond to a respective load bearing ledger in the outer grid provided at the same height.
  • the additional bamboo members are preferably secured between the load bearing members in the outer grid.
  • the scaffolding structure is erected such that each of the distances between any two adjacent bamboo members and between any bamboo member and an adjacent load bearing member, are substantially equal.
  • the bamboo members include upright standards and horizontal ledgers with intersections between any bamboo members and other members being effected by nylon ties.
  • bamboo transoms may provide the interconnection between the inner grid and the outer grid.
  • the invention may further comprise one or more platforms on the structure, the or each platform disposed between two corresponding load bearing ledgers from the inner and outer grids which are of the same level, wherein the platform is of elongate configuration and includes a planar supporting surface and attachment means coupling the platform to the two load bearing ledgers.
  • the attachment means comprise hook portions. These hook portions may extend transversely out either side of the platform. Preferably there is a minimum of four hook portions, each extending from a respective corner of the platform.
  • the scaffolding structure of the present invention may be supported from the building being erected.
  • This building suitably includes at least one concrete slab with one or more structural beams supported from and extending outwardly from the concrete slab in a cantilevered fashion.
  • the scaffolding structure is then supported on the one or more structural beams.
  • the spacing between adjacent cantilevered structural beams will depend upon the particular application but a preferred spacing would be about 3 metres.
  • the above method may be used in conjunction with supporting brackets mounted on support columns of the building. The above method is especially appropriate where the column spacing of the building is more than 3 metres apart and the slab depth is insufficient to mount the brackets across the depth of the slab. Accordingly, the supporting brackets may be mounted to the support columns with an appropriate number of structural beams spaced between neighbouring supporting brackets mounted on respective building columns.
  • the structural beams comprise I-beams.
  • other types of structural beams are considered within the scope of the present invention including box-section beams.
  • the present invention consists in a method of constructing a scaffolding structure for a building being erected, the method including:
  • the anchoring member may be alignable such that the first leg extends substantially parallel to the longitudinal axis of the arm with the remote end of the first leg extending beyond the arm.
  • the scaffolding structure 10 illustrated in Figure 1 is a three dimensional structure.
  • the scaffolding structure 10 includes an inner two dimensional grid 12 illustrated in Figure 2 and an outer two dimensional grid 14 illustrated in Figure 3.
  • the inner grid 12 is disposed adjacent the wall of the building 15 being constructed.
  • the spacing of the inner grid 12 from the wall of the building 15 is generally about 200 mm.
  • the outer grid 14 is disposed outwardly of the scaffolding structure 10 relative to the building 15.
  • the outer grid 14 and the inner grid 12 are spaced approximately 600 to 700 mm apart. They are joined together by bamboo transoms 18 as shown in Figure 4 and Figure 1.
  • the inner grid is comprised of upright standards 20 and horizontal ledgers 22.
  • Each of the standards and ledgers are elongate steel tubular members.
  • the tubular members are joined by metal couplers (not shown).
  • the metal couplers are protected by covers to prevent contamination, particularly from concrete.
  • each of the upright standards 20 are spaced 1.5 metres apart whereas the horizontal ledgers 22 are spaced 2.25 metres apart.
  • This rectangular window created by the intersecting tubular members defines an interstice in the grid through which workers on the scaffolding structure can access the various parts of the building 15 as required. Due to the inherent strength of the steel ledgers 22 and standards 20, the interstices are comparatively large enabling easy access to the building 15 for the workers on the scaffolding structure 10.
  • the outside grid illustrated in Figure 3 comprises bamboo ledgers 25 and bamboo standards 27 in combination with steel standards 24 and steel ledgers 26.
  • the bamboo ledgers and standards are illustrated by the thin lines in Figure 3 whereas the steel ledgers 26 and standards 24 are illustrated by the thick vertical and horizontal lines of Figure 3.
  • the steel ledgers 26 and standards 24 provide the structural strength for the outer grid 14 whereas the bamboo ledgers 25 and standards 27 provide guard rails for the safety of the workman on the scaffolding structure 10.
  • the bamboo ledgers 25 and standards 27 thus increase the safety for workers on the scaffolding structure 10 without unnecessarily increasing the cost or weight of the structure.
  • the steel standards 24 in the outer grid 14 are spaced at intervals of 3 metres (in contrast to the 1.5 metre spacing of the inner grid 12).
  • the steel ledgers 26 are arranged at a vertical spacing of 2.25 metres. This corresponds to the spacing of the horizontal ledgers 22 so that the levels of the ledgers 26 in the outer grid correspond to the levels of the ledgers 22 in the inner grid.
  • the spacing of the bamboo transoms horizontally in the scaffolding structure 10 in line with the ledgers 26, 22 corresponds to the spacing of the bamboo standards 27 in the outer grid.
  • the bamboo standards 27 are arranged at spacings of 0.75 metres which allows for three at equal spacing from and between adjacent steel standards 24.
  • the bamboo ledgers 25 are arranged at equal spacing of 0.75 metres from and between adjacent steel ledgers 26. Given that the steel ledgers are spaced 2.25 metres, apart this enables two bamboo ledgers 25 at equal spacing therebetween.
  • the intersecting steel elongate members are joined by metal couplers.
  • the intersecting bamboo members are joined by nylon tie.
  • Figure 4 also illustrates the arrangement of netting 28 on the outer grid of the scaffolding structure. This prevents materials or tools dropping outside the scaffolding structure.
  • the netting 28 should be securely attached to the scaffolding structure by nylon tics or metal wire as illustrated.
  • FIG 6a shows diagrammatically only, the main structural components of the scaffolding structure 10.
  • Each of the steel standards 20, 24 is about 6 metres long.
  • Each level of the scaffolding structure 10 is referred to as a "zone” and is 24 metres in height as indicated in Figure 6a.
  • each zone is made up of 4 x 6 metre lengths of the steel standards 20, 24.
  • the region between adjacent steel standards 20, 24 in each zone is referred to as a "bay”.
  • the height of each bay is defined by the vertical distance between support brackets 30.
  • the support brackets disposed at vertical intervals corresponding to the length of four steel standards 20, 24, the height of each bay is thus 24 metres.
  • the vertical spacing of the brackets will naturally depend upon the weight of the scaffold and the expected loading.
  • the configuration of the support bracket 30 is illustrated schematically in Figure 15a.
  • the steel standards 20, 24 of the scaffolding structure 10 fit into suitable recesses (not shown) on one arm of the bracket.
  • the support bracket 30 is constructed from angle iron configured in the shape of a right angle isosceles triangle having side lengths of 900 mm.
  • the angle iron might be 80x80x8 angle grade 43 depending on the particular application.
  • One side of the support bracket 30 is secured to the wall of the concrete building, preferably at an upright support column of the building 15.
  • An array of supporting brackets 30 thus provides support for the scaffolding structure 10 at the base thereof and at intervening levels of the scaffolding structure.
  • a temporary bamboo structure may be first erected. Once the first layer of steel brackets 30 has been installed, the temporary bamboo structure may be transformed to be components of the scaffolding structure.
  • Figure 15b illustrates an alternative form of support bracket 30b. It can be seen from Figure 6a that the appropriate vertical spacing for the brackets is 24m. However, by using the higher strength brackets illustrated in Figure 15b together with closer spacing of the anchoring devices (see Figures 9, 10a and 10b), the bracket spacing can be increased to 30 m as shown in Figure 6b.
  • Figure 6b also illustrates that a bracket 30b of one level should be offset by an appropriate amount (80mm) in relation to the bracket 30b on an adjacent upper or lower level. This enables the steel standards to be overlapped (preferably by about 3m) and clamped together in the manner illustrated.
  • the clamps 30c are arranged at a spacing of about 750mm.
  • the building columns may be located too far apart for effective securement of adjacent supporting brackets 30.
  • an alternative supporting arrangement for the scaffolding structure will be required as illustrated in Figure 7.
  • Figure 7 illustrates adjacent columns 40 of the building 15 with a slab 42 extending therebetween.
  • Two supporting brackets 30 are bolted by bolts 46 to respective columns 40 as illustrated.
  • these supporting brackets 30 exceed the maximum permissible spacing therebetween for properly supporting the scaffolding structure 10. Therefore, cantilevered I-beams 44 are bolted to the slab to extend outwardly beyond the slab 42 as illustrated in Figure 8.
  • the inner grid 12 and the outer grid 14 are supported on the I-beam 44 as illustrated in Figure 8, provided that the outer grid 14 is a minimum of 200 mm from the cantilevered end of the I-beam 44 and the inner grid 12 is a minimum of 200 mm from the end of the slab.
  • the I-beams 44 are temporary and may be removed once the scaffolding has been disassembled.
  • FIG 9 illustrates one method of anchoring the scaffolding structure 10 to the building 15.
  • the anchoring is achieved by way of an anchoring device 50 as shown in Figure 9.
  • the anchoring device 50 is illustrated more clearly in Figure 10a.
  • the anchoring device 50 comprises a relatively short arm of metal tube of approximately 1 metre in length having an outside diameter of 48.6 mm.
  • an anchoring plate 54 adapted to be bolted to the concrete building 15 as shown in Figure 9.
  • the metal tube 52 is secured to the upright standards of the inner grid 12 and the outer grid 14 by way of metal right-angle couplers (see Figure 9).
  • the anchoring plate 54 also provides an eyelet 56 for attachment of a steel cable 58.
  • the other end of the steel cable 58 of R6 steel wire is provided with a coupling 59 for securement to a member of the outer grid 14 as shown in Figure 9.
  • a coupling 59 for securement to a member of the outer grid 14 as shown in Figure 9.
  • the anchoring method illustrated in Figure 9 serves to anchor both the inner grid 12 and the outer grid 14 to the building given that only bamboo transoms 18 are provided between the two grids.
  • the anchoring method may serve as a backup in case of any failure of the brackets 30.
  • FIG 10b illustrates an alternative anchoring device 50b.
  • the anchoring device 50b includes a short arm 52b of about 1m in length. At one end of the arm, a through-aperture 50d is provided into which an anchoring member 50c in the form of an L-shaped rod is received.
  • the anchoring member 50c has a first leg having a free end which, in the configuration shown in the drawing, extends past the end of the arm. The free end of the first leg is threaded to enable the anchoring member to be secured into the structure of the building being erected.
  • the small footprint of the first leg onto the building enables the first leg to be secured almost anywhere, thereby allowing greater flexibility in locating the anchoring device.
  • the anchoring member 50c may be cast into position or alternatively secured to the concrete structure of the building 15 after the concrete has set.
  • the threaded end may extend into the concrete about 750mm.
  • the anchoring member 50c also includes a second leg which is received in the through- aperture 50d.
  • the second leg also has a threaded free end. This threaded free end receives a nut (not shown) to retain the second leg within the aperture.
  • the length of the second leg is such that the arm 52b can slide along the second leg, hence increasing the flexibility in locating the first leg at an appropriate location on the building 15.
  • frequent use of the anchoring devices reduces the demand for support brackets. Desirably, the vertical spacing should not exceed 2.25m and the horizontal spacing should not exceed 3m. From a comparison of Figures 6a and 6b, it can be seen that the vertical spacing between brackets can be increased from 24m to 30m. This is achieved with frequent use of the anchoring devices 50b and the modified form of brackets 30b.
  • FIG 11 illustrates appropriate bracing 60 for the scaffolding structure 10.
  • the outside grid 14 of the scaffolding structure 10 is illustrated diagrammatically by the spaced upright steel standards 24.
  • diagonal cross bracing is typically arranged at an angle of 45- 60° plus or minus 5°.
  • Figure 12 illustrates a detail of the outer grid 14 with the dotted line 70 illustrating the location of an intended opening to be formed in the outer grid 14.
  • An opening 70 such as that illustrated might be required to load materials onto the site.
  • Figure 13 illustrates the detail of the outside grid 14 with the opening cut 70.
  • the bamboo and steel members have been cut as illustrated.
  • additional bracing members 72 are installed. These extend diagonally as shown. Additionally, warning signs are installed to notify workers on the scaffolding structure of potential danger.
  • the catch fan 80 comprises a catchment surface 82 extending upwardly and outwardly from the scaffolding structure 10.
  • the catchment surface 82 is defined by spaced metal tubes 84 extending upwardly and outwardly from the outer grid 14 with a canvas-like fire resistant material extending over the metal support tubes 84.
  • the upper and outer ends of the metal support tubes 84 are supported by further metal tubes 86.
  • Each metal tube 86 is joined to the end of one of the metal tubes 84 and extends from that end upwardly and inwardly towards the outer grid 14.
  • the catchment surface 82 is arranged at an angle of 45° from the horizontal but is adjustable with adjustment of the further metal tubes 86.
  • the catchment surface 82 is provided to catch materials falling off the building 15 or scaffolding structure 10 for easy collection of debris and removal.
  • Catch fans 80 are generally provided at each ten storey interval. However, individual contractors may install the catch fans 80 to suit the requirements of a particular building site.
  • protective layers 90 are disposed at regular intervals, preferably immediately above the supporting brackets ie every ten storeys.
  • the projective layers 90 provide access for workers as well as protect the workers from falling. Additionally, the protective layers 90 protect the workers from falling debris.
  • Each protective layer 90 comprises a layer of horizontally arranged bamboo members 92 extending between adjacent transoms 18. The spacing of the bamboo members should not exceed 200mm.
  • the bamboo members 92 can be above or below the transoms 18. These bamboo members provide a buffer effect in case heavy objects fall from above.
  • zinc sheet 94 is laid down. The zinc sheet may be formed with upturned edges 94a of about 100mm in height.
  • a bamboo ledger (not shown) fastened on top of the zinc sheet prevents the sheet from blowing away.
  • catwalks metal workers' platforms, referred to as "cat walks” may be installed in addition to the protective layers 90 or in place of the protective layers 90.
  • An appropriate catwalk 100 is illustrated in Figure 16.
  • the catwalk 100 is of generally elongate planar form defined by an elongate rectangular metal frame 101 with a metal sheet 102 providing an elongate rectangular supporting surface.
  • the catwalk 100 is supported by a horizontal steel ledger 26 of the outer grid 14 on one side and a horizontal steel ledger 22 of corresponding height of the inner grid 12, on the other side.
  • Hook portions 107 extend transversely from the sides of the metal frame 101 to hook over the associated horizontal steel ledgers 22, 26.
  • Figure 18 illustrates a slightly modified form of the catwalk.
  • the catwalk illustrated includes toeboards 100b on each longitudinal side.
  • the specific form of the toeboards 100b is illustrated in Figure 20.
  • the toeboards are in the form of generally rectangular panels, the bottom corners being removed to enable the toeboards to be held within a pair of opposed brackets.
  • the form of the brackets 100c is illustrated most clearly in Figure 19.
  • the metal brackets 100c are an L-shape in plan with a height corresponding to the height of the platform 102.
  • Each longitudinal side of the platform is provided with a pair of opposed brackets 100c.
  • the toeboard is held between the opposed brackets 100c. Accordingly, the length between the opposed brackets TL corresponds to the distance between the upright edges of the cut-out corners of the toeboard.
  • the overall length of the toeboard corresponds to the length of the platform 102.
  • Figure 19 also illustrates the form of a special corner platform with brackets 100c on adjacent sides.
  • the metal staircases comprise a pair of spaced stiles 110 with appropriately spaced stair treads 112 extending therebetween.
  • the ends of the elongate stiles 110 are provided with hook or loop portions 114 for attachment to appropriate structural members of the scaffolding structure 10.
  • FIGs 21 and 22 illustrate an alternative form of the ladder 120 which can be installed at intermediate locations along the platforms.
  • a particular type of platform 125 has been developed for use in connection with the alternative form of the ladder 120.
  • the platform 125 incorporates an access opening 127 of sufficient size to position the ladder therein and enable a worker to pass therethrough.
  • An access hatch 128 is hingedly connected to the platform 125 by means of hinges 129.
  • the access hatch covers a portion of the opening 127, leaving a space sufficient for the ladder 120 to pass therethrough.
  • a hand-hole 130 in the access hatch enables a worker to open the hatch 128 from above.
  • the specific form of the ladder is illustrated in Figure 22.
  • the ladder 120 has stiles 132 and rungs 133.
  • the rungs 133 are of rectangular cross-section.
  • the stiles are shaped in a U-shape, with the respective ends being formed in a C-bracket 135 to conform to the contour of the steel ledger on which they are supported.
  • the lower ends of the stiles 132 are formed with respective C-brackets 137.
  • the lower ends of the stiles are formed with a step since the upper and lower C-brackets 135, 137 must necessarily align.

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

Claims (44)

  1. Structure d'échafaudage (10) pour une construction (15) devant être érigée, la structure d'échafaudage (10) comprenant un échafaudage d'une grille intérieure (12) essentiellement à deux dimensions, interreliée avec une grille extérieure (14) essentiellement à deux dimensions, chacune des grilles (12, 14) étant constituée d'éléments porteurs de charge (20, 22, 24, 26) ayant une résistance relativement constante au cours du temps sous les conditions de charge envisagées de la structure d'échafaudage et un dispositif d'ancrage (50b) qui comporte un bras (52b) couplé à l'échafaudage, le bras (52b) ayant un axe longitudinal et un élément d'ancrage (50c) approprié pour l'ancrage du dispositif (50b) et de l'échafaudage à la construction (15), l'élément d'ancrage (50c) étant couplé au bras (52b) et étant en forme de L ayant une première branche sous la forme d'une tige ou barre qui s'étend au-delà du bras, la tige ou barre étant apte à être ancrée dans la construction (15) et une deuxième branche couplée audit bras (52b), caractérisée en ce que des éléments en bambou supplémentaires (25, 27) sont fixés sur la grille extérieure (14) de sorte que les interstices définis par les éléments porteurs de charge (24, 26) et les éléments en bambou (25, 27) de la grille extérieure (14) sont plus petits que les interstices définis par les éléments porteurs de charge (20, 22) de la grille intérieure (12).
  2. Structure d'échafaudage (10) selon la revendication 1, dans laquelle les éléments porteurs de charge (20, 22, 24, 26) sont des éléments en acier de section transversale tubulaire.
  3. Structure d'échafaudage (10) selon la revendication 1, dans laquelle les éléments porteurs de charge (20, 22, 24, 26) comportent des tubes en matière plastique renforcée de fibre.
  4. Structure d'échafaudage (10) selon l'une quelconque des revendications précédentes, dans laquelle les éléments en bambou (25, 27) comportent des montants verticaux (27) et des sommiers sensiblement horizontaux (25) avec l'intersection entre n'importe lesquels de deux éléments en bambou ou un élément en bambou et un autre élément réalisée par des attaches en Nylon.
  5. Structure d'échafaudage (10) selon l'une quelconque des revendications précédentes, dans laquelle des traverses en bambou (18) fournissent l'interconnexion entre la grille intérieure (12) et la grille extérieure (14).
  6. Structure d'échafaudage (10) selon l'une quelconque des revendications précédentes, dans laquelle chacune des distances entre n'importe lesquels de deux éléments en bambou contigus (25, 27) et entre n'importe quel élément en bambou (25, 27) et un élément porteur de charge contigu (20, 22, 24, 26) est essentiellement égale.
  7. Structure d'échafaudage (10) selon la revendication 1, dans laquelle les éléments porteurs de charge (20, 22, 24, 26) sont des éléments structurels allongés comprenant des sommiers sensiblement horizontaux (22, 26) et des montants verticaux (20, 24) se coupant selon un schéma régulier pour former les grilles intérieure et extérieure (12, 14).
  8. Structure d'échafaudage (10) selon la revendication 7, dans laquelle la structure est érigée de façon qu'au moins certains des sommiers porteurs de charge (22) dans la grille intérieure (12) correspondent aux sommiers porteurs de charge respectifs (26) dans la grille extérieure (14) prévue à la même hauteur.
  9. Structure d'échafaudage (10) selon la revendication 8, comprenant, en outre, une ou plusieurs plates-formes (102), la ou chaque plate-forme (102) étant disposée entre deux sommiers porteurs de charge correspondants (22, 26) à partir de la grille intérieure (12) et de la grille extérieure (14) qui sont au même niveau, dans laquelle la plate-forme (102) comprend une surface de support plane et un moyen de fixation couplant la plate-forme (102) aux deux sommiers porteurs de charge (22, 26).
  10. Structure d'échafaudage (10) selon la revendication 9, dans laquelle le moyen de fixation comprend des parties de crochet (107).
  11. Structure d'échafaudage (10) selon la revendication 9 ou la revendication 10, dans laquelle la plate-forme (102) est allongée et le moyen de fixation s'étend transversalement à l'extérieur de l'un ou l'autre côté de la plate-forme (102).
  12. Structure d'échafaudage (10) selon l'une quelconque des revendications 9 à 11, dans laquelle il y a quatre parties de crochet (107) s'étendant chacune à partir d'un coin respectif de la plate-forme (102).
  13. Structure d'échafaudage (10) selon l'une quelconque des revendications précédentes, dans laquelle la construction (15) devant être érigée comprend au moins une plaque de béton (42) avec une ou plusieurs poutres structurelles temporaires (44) supportées par la dalle de béton (42) et s'étendant vers l'extérieur à partir de celle-ci d'une façon en porte-à-faux, la structure d'échafaudage (10) étant supportée sur une ou plusieurs poutres structurelles (44).
  14. Structure d'échafaudage (10) selon la revendication 13, dans laquelle l'espacement entre n'importe laquelle de deux poutres structurelles contiguës en porte-à-faux (44) est d'environ 3 mètres.
  15. Structure d'échafaudage (10) selon l'une des revendications 13 ou 14, dans laquelle une ou plusieurs de telles poutres structurelles en porte-à-faux (44) est/sont espacée(s) entre deux consoles de support voisines (30) montées sur des colonnes de support voisines respectives (40) de la construction (15).
  16. Structure d'échafaudage (10) selon l'une quelconque des revendications 13 à 15, dans laquelle les poutres structurelles comportent des poutres en I (44).
  17. Structure d'échafaudage (10) selon l'une quelconque des revendications précédentes, dans laquelle le bras (52b) est apte à être déplacé par rapport à l'élément d'ancrage (50c) dans une direction transversale à l'axe longitudinal.
  18. Structure d'échafaudage (10) selon la revendication 1, dans laquelle la deuxième branche de l'élément en forme de L est reçue dans une ouverture (50d) dans le bras, le bras étant apte à coulisser le long de la deuxième branche, avec une butée prévue pour limiter le mouvement le long du bras.
  19. Structure d'échafaudage (10) selon l'une quelconque des revendications 9 à 12, dans laquelle une ouverture d'accès (127) est prévue dans la surface de support plane pour l'accès à une région inférieure de la structure d'échafaudage (10), la structure d'échafaudage (10) comprenant, en outre, une échelle (120) montée sur la structure d'échafaudage (10) et disposée pour l'accès par un travailleur au travers de l'ouverture d'accès (127).
  20. Structure d'échafaudage (10) selon la revendication 19, comprenant, en outre, une trappe d'accès (128) mobile entre une position fermée pour fermer au moins partiellement l'ouverture d'accès (127) et une position ouverte qui fournit un espace suffisant pour un travailleur pour utiliser l'échelle (120).
  21. Structure d'échafaudage (10) selon la revendication 20, dans laquelle la trappe d'accès (128) est apte à laisser un espace dans l'ouverture d'accès (127) quand dans la position fermée, l'échelle (120) s'étend au travers de l'espace.
  22. Structure d'échafaudage (10) selon la revendication 21, dans laquelle l'échelle (120) comprend des barreaux (133) et des montants (132), les montants à l'extrémité supérieure étant formés en forme de U, les extrémités distantes de la forme en U ayant des coupleurs respectifs (135) qui sont complémentaires de la forme des sommiers (26), les montants à l'extrémité inférieure ayant également des coupleurs respectifs (137) complémentaires de la forme des sommiers (26).
  23. Procédé de construction d'une structure d'échafaudage (10) pour une construction (15) devant être érigée, le procédé comprenant :
    l'érection de la structure (10) qui comprend un échafaudage d'une grille intérieure essentiellement à deux dimensions (12) interreliée avec une grille extérieure essentiellement à deux dimensions (14), chacune des grilles (12, 14) étant constituée d'éléments porteurs de charge (20, 22, 24, 26) ayant une résistance relativement constante au cours du temps sous les conditions de charge envisagées de la structure d'échafaudage (10) ; et
    la fixation d'éléments en bambou supplémentaires (25, 27) sur la grille extérieure (14) de sorte que les interstices définis par les éléments porteurs de charge (24, 26) et les éléments en bambou (25, 27) de la grille extérieure (14) sont plus petits que les interstices définis par les éléments porteurs de charge (20, 22) de la grille intérieure (12) et la fourniture d'un dispositif d'ancrage (50b) qui comprend : un bras (52b) couplé à l'échafaudage, le bras (52b) ayant un axe longitudinal et un élément d'ancrage (50c) ancrant le dispositif (52b) et l'échafaudage à la construction (15), l'élément d'ancrage (50c) étant couplé au bras (52b) et étant d'une forme en L ayant une première branche sous la forme d'une tige ou barre qui s'étend au-delà du bras (52b), la tige ou la barre étant ancrée dans la construction (15) et une deuxième branche est couplée audit bras (52b).
  24. Procédé selon la revendication 23, dans lequel les éléments porteurs de charge (20, 22, 24, 26) sont des éléments en acier de section transversale tubulaire.
  25. Procédé selon la revendication 23, dans lequel les éléments porteurs de charge (20, 22, 24, 26) comportent des tubes en matière plastique renforcée de fibre.
  26. Procédé selon l'une quelconque des revendications 23 à 25, dans lequel les éléments en bambou (25, 27) comportent des montants verticaux (27) et des sommiers sensiblement horizontaux (25) avec l'intersection entre n'importe lesquels de deux éléments en bambou ou un élément en bambou et un autre élément réalisée par des attaches en Nylon.
  27. Procédé selon l'une quelconque des revendications 23 à 26, dans lequel des traverses en bambou (18) fournissent l'interconnexion entre la grille intérieure (12) et la grille extérieure (14).
  28. Procédé selon l'une quelconque des revendications 23 à 27, dans lequel la structure (10) est érigée de sorte que chacune des distances entre n'importe lesquels de deux éléments en bambou contigus et entre n'importe quel élément en bambou et un élément porteur de charge contigu est essentiellement égale.
  29. Procédé selon la revendication 23, dans lequel les éléments porteurs de charge (20, 22, 24, 26) sont des éléments structurels allongés comprenant des sommiers sensiblement horizontaux (22, 26) et des montants verticaux (20, 24) se coupant selon un schéma régulier pour former les grilles intérieure et extérieure (12, 14).
  30. Procédé selon la revendication 29, dans lequel la structure est érigée de façon qu'au moins certains des sommiers porteurs de charge (22) dans la grille intérieure (12) correspondent aux sommiers porteurs de charge respectifs (26) dans la grille extérieure (14) prévue à la même hauteur.
  31. Procédé selon la revendication 30, comprenant, en outre, l'érection d'une ou plusieurs plates-formes (102) sur la structure (10), la ou chaque plate-forme (102) étant disposée entre deux sommiers porteurs de charge correspondants (22, 26) à partir de la grille intérieure (12) et de la grille extérieure (14) qui sont au même niveau, dans lequel la plate-forme (102) est d'une configuration allongée et comprend une surface de support plane et un moyen de fixation couplant la plate-forme aux deux sommiers porteurs de charge (22, 26).
  32. Procédé selon la revendication 31, dans lequel le moyen de fixation comprend des parties de crochet (107).
  33. Procédé selon la revendication 31 ou la revendication 32, dans lequel les moyens de fixation s'étendent transversalement à l'extérieur de l'un ou l'autre côté de la plate-forme (102).
  34. Procédé selon l'une quelconque des revendications 31 à 33, dans lequel il y a quatre parties de crochet (107) s'étendant chacune à partir d'un coin respectif de la plate-forme.
  35. Procédé selon l'une quelconque des revendications 23 à 34, dans lequel la construction (15) devant être érigée comprend au moins une dalle de béton (42), le procédé comprenant :
    l'extension et le support d'une ou plusieurs poutres structurelles (44) à l'extérieur de la dalle de béton (42) d'une façon en porte-à-faux ; et
    le support de la structure d'échafaudage (10) sur une ou plusieurs poutres structurelles (44).
  36. Procédé selon la revendication 35, dans lequel l'espacement entre n'importe laquelle de deux poutres structurelles contiguës en porte-à-faux (44) est d'environ 3 mètres.
  37. Procédé selon l'une quelconque des revendications 35 ou 36, dans lequel les poutres structurelles comportent des poutres en I (44).
  38. Structure d'échafaudage (10) selon la revendication 1, l'élément d'ancrage (50c) étant apte à être aligné afin que la première branche s'étende sensiblement parallèlement à l'axe longitudinal du bras (52b) avec l'extrémité distante de la première branche s'étendant au-delà du bras (52b).
  39. Structure d'échafaudage (10) selon la revendication 38, dans laquelle le bras (52b) est apte à être déplacé par rapport à l'élément d'ancrage (50c) dans une direction transversale à l'axe longitudinal.
  40. Structure d'échafaudage (10) selon la revendication 39, dans laquelle l'élément d'ancrage en forme de L (50c) est apte à pivoter autour du couplage relativement au bras (52b).
  41. Structure d'échafaudage (10) selon la revendication 39 ou 40, dans laquelle la deuxième branche de l'élément en forme de L est reçue dans une ouverture (50d) dans le bras (52b), le bras (52b) étant apte à coulisser le long de la deuxième branche, avec une butée prévue pour limiter le mouvement le long du deuxième bras.
  42. Structure d'échafaudage (10) selon la revendication 41, dans laquelle la deuxième branche est filetée à une extrémité distante de celle-ci et reçoit un écrou.
  43. Structure d'échafaudage (10) selon la revendication 42, dans laquelle l'extrémité distante de la première branche est filetée.
  44. Structure d'échafaudage (10) selon l'une quelconque des revendications 38 à 43, comprenant un ou plusieurs coupleurs pour coupler le bras (52b) à chacune des grilles (12, 14),
EP00950116A 1999-07-28 2000-07-28 Echafaudage Expired - Lifetime EP1206611B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07016534A EP1854940A1 (fr) 1999-07-28 2000-07-28 Échafaudage

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
NZ33695999 1999-07-28
NZ336959A NZ336959A (en) 1999-07-28 1999-07-28 Scaffolding
AUPQ3192A AUPQ319299A0 (en) 1999-09-27 1999-09-27 Scaffolding
AUPQ319299 1999-09-27
PCT/NZ2000/000142 WO2001007730A1 (fr) 1999-07-28 2000-07-28 Echafaudage

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP07016534A Division EP1854940A1 (fr) 1999-07-28 2000-07-28 Échafaudage

Publications (3)

Publication Number Publication Date
EP1206611A1 EP1206611A1 (fr) 2002-05-22
EP1206611A4 EP1206611A4 (fr) 2005-08-03
EP1206611B1 true EP1206611B1 (fr) 2007-09-12

Family

ID=25646160

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07016534A Withdrawn EP1854940A1 (fr) 1999-07-28 2000-07-28 Échafaudage
EP00950116A Expired - Lifetime EP1206611B1 (fr) 1999-07-28 2000-07-28 Echafaudage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP07016534A Withdrawn EP1854940A1 (fr) 1999-07-28 2000-07-28 Échafaudage

Country Status (4)

Country Link
EP (2) EP1854940A1 (fr)
GB (1) GB2355752B (fr)
HK (3) HK1033739A1 (fr)
WO (1) WO2001007730A1 (fr)

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* Cited by examiner, † Cited by third party
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US7637351B2 (en) 2005-01-25 2009-12-29 Roger Langsmead Scaffold safety apparatus
DE102008005182A1 (de) * 2008-01-19 2009-07-23 Weiss, Johannes Gerüstbelag mit Durchstiegsklappe, deren Schwenkwinkel begrenzt ist
ITRM20130720A1 (it) * 2013-12-24 2015-06-25 Mario Martina Struttura metallica per il sostegno di ponteggi da sbalzi di edifici in c.a.
FI11281U1 (fi) * 2016-02-24 2016-06-13 Erik Ahto Oy Moduulirakennusteline
JP6281015B1 (ja) * 2017-08-02 2018-02-14 藤本　隆 免震建物用仮設足場の耐震施工方法
CN108560892A (zh) * 2018-03-21 2018-09-21 北京城建科技促进会 一种提升式模块化脚手架及其安装方法
CN113323395B (zh) * 2021-06-11 2022-09-09 中铁十二局集团建筑安装工程有限公司 一种钢结构厚涂型非膨胀防火涂料冬季施工方法

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Also Published As

Publication number Publication date
HK1096133A1 (en) 2007-05-25
GB2355752A8 (en) 2001-05-22
GB2355752B (en) 2001-07-04
GB0025045D0 (en) 2000-11-29
EP1854940A1 (fr) 2007-11-14
EP1206611A1 (fr) 2002-05-22
GB2355752A (en) 2001-05-02
HK1045721A1 (en) 2002-12-06
HK1045721B (zh) 2008-03-20
WO2001007730A1 (fr) 2001-02-01
HK1033739A1 (en) 2001-08-31
EP1206611A4 (fr) 2005-08-03

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