EP0635089B1 - Gerüst - Google Patents

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Publication number
EP0635089B1
EP0635089B1 EP93906661A EP93906661A EP0635089B1 EP 0635089 B1 EP0635089 B1 EP 0635089B1 EP 93906661 A EP93906661 A EP 93906661A EP 93906661 A EP93906661 A EP 93906661A EP 0635089 B1 EP0635089 B1 EP 0635089B1
Authority
EP
European Patent Office
Prior art keywords
scaffolding
legs
platforms
arms
elements
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
EP93906661A
Other languages
English (en)
French (fr)
Other versions
EP0635089A1 (de
Inventor
Jean-Claude L'hermine
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.)
LACROIX DUARIB S.A.
Original Assignee
LACROIX DUARIB SA
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9428220&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0635089(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by LACROIX DUARIB SA filed Critical LACROIX DUARIB SA
Publication of EP0635089A1 publication Critical patent/EP0635089A1/de
Application granted granted Critical
Publication of EP0635089B1 publication Critical patent/EP0635089B1/de
Anticipated expiration legal-status Critical
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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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/36—Scaffolds for particular parts of buildings or buildings of particular shape, e.g. for stairs, cupolas, domes
    • 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
    • E04G1/18—Scaffolds primarily resting on the ground adjustable in height
    • E04G1/20—Scaffolds comprising upright members and provision for supporting cross-members or platforms at different positions therealong
    • 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
    • E04G1/36—Scaffolds for particular parts of buildings or buildings of particular shape, e.g. for stairs, cupolas, domes
    • E04G1/362—Scaffolds for particular parts of buildings or buildings of particular shape, e.g. for stairs, cupolas, domes specially adapted for tanks, silos or similar vessels
    • 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 a scaffolding, more particularly intended for use inside large hollow elements such as tanks, quarries, etc.
  • the scaffolding, object of the invention is particularly applicable to the installation of insulation in LNG tanks.
  • Scaffolds of conventional design intended for use inside hollow elements generally have a large number of elements because they crisscross the entire hollow volume, which generates high manufacturing costs and significant assembly times while by not allowing easy access or circulation at the bottom of the hollow element to be able to work there if necessary.
  • Such scaffolding is for example described in US-A-4,057,943.
  • a generally very heavy load-bearing plane resting on the ground by a large number of feet supports vertical and horizontal elements which crisscross the entire volume. Consequently, the horizontal elements can come to bear on the vertical elements. Only a small portion of the entire assembly can possibly be mounted cantilevered.
  • a scaffolding system which can be used in ship's holds and which is intended to replace known systems constituted by a juxtaposition of traditional scaffolding or by a carriage system.
  • This document proposes a structure consisting of four uprights at the four corners, provided with elevators which are integral with the beams. This structure is also heavy and expensive and does not allow simultaneous work on more than two levels.
  • the object of the present invention is therefore to propose a modular scaffolding which allows a large number of maneuvers safely and quickly while allowing to benefit from large areas for storing and preparing the materials to be used, with a very limited footprint. on the bottom of the item to be worked.
  • the modular platforms have, at their end opposite to that secured to the leg, a telescopic part.
  • the scaffolding object of the invention, comprises a support structure formed by two legs 3, connected together by at least two crosspieces 4, 5 forming decking and stiffening the assembly.
  • the legs 3 consist of a metal frame in the form of a mesh, so as to allow easy disassembly and assembly of the assembly, while allowing good circulation inside the structure of the legs.
  • the crosspieces constitute a deck which allows the legs 3 of the supporting structure to be placed in communication while constituting areas for storage and preparation of materials.
  • These decks are generally made from beams made up of modular elements which are assembled one by one so as to obtain, during disassembly, elements of small dimensions.
  • the decks occupy a higher position relative to the legs and an intermediate position.
  • the upper deck 5, which is located at the upper end of the legs 3, makes it possible to work on the ceiling of the tank as shown in FIG. 1, the intermediate deck 4 serving only as a place for storing materials.
  • a staircase hopper designated by 7 in FIG. 1, and / or by hoists and / or by elevators 17.
  • These staircase hoppers 7 are preferably arranged opposite diagonally at the level of the legs 3 in the hollow element such as a tank.
  • Modular platforms 6 are mounted at variable heights cantilevered on the external face of the legs 3 and allow users to be able to access the side walls of the hollow element.
  • These modular platforms are made up of removable floor elements arranged side by side.
  • the platforms consist of a fixed part 10 and a telescopic part formed by two removable floors 11, 12 supported by telescopic arms.
  • This platform further comprises, on the integral part of the leg 3, a storage console 12. The installation of the two insulators and of the covering at a platform level is carried out in accordance with the diagrams and according to the order of diagrams 3A to 3F.
  • the floor is made up of two modular elements 11, 12 of different dimensions.
  • one of the modular elements namely the element 11 of larger dimension, is then preserved that the element 12 is removed and placed on the storage console 13.
  • the insulation 14 which constitutes the first layer of insulation is placed on the wall of the tank.
  • the floor element 11 is replaced by the floor element 12 of smaller size, so as to leave a larger space between the layer of insulation and the end of the platform for be able to apply a coating on the insulation layer and weld the latter using a welding machine.
  • step 3D it is necessary to find the maximum space allowed between the insulation layer and the end of the platform.
  • the element 12 of small dimension of the platform is again replaced by the element 11 of larger dimension, then the second layer of insulation is affixed in this same step.
  • this second layer of insulation is fixed, in step 3E, there is again released, between the second layer of insulation and the end of the platform, a large space so as to be able to affix the coating and to be able to weld the latter by means of the welding machine.
  • step 3F the welding is finished, the installation of insulation is finished and all the removable floors can be dismantled.
  • step 3A to step 3B the adjustment of the telescopic arms supporting the removable floors forming the plate -Telescopic form is made through a connecting member 15 fixed at the ends of said arms.
  • This connecting member is actuated by the operator who pulls or repels this connecting member by means of a hook fixed to the latter.
  • This connecting member 15, affecting the shape of a plinth also serves as a stop so as to avoid any untimely fall of objects. If the operator can briefly adjust the length of the arms, indexing means are provided at the level of each arm, so as to allow the operator to quickly identify the stop positions which are predefined.
  • locking means are triggered so as to immobilize the assembly.
  • These locking means which are constituted by the indexing means or by additional means make it possible, in the event of heeling, to avoid any re-entry of the telescopes.
  • the scaffolding is constituted at the level of each leg of three lines of feet 9a, 9b and 9c capable of being adjusted in height.
  • each line of feet can be made up of several tens of feet. So like As shown in Figure 2, at the start, the three lines of pole feet on each leg rest on the ground.
  • one of the rows of post legs consisting of post feet adjustable in height is raised so as to allow work under this line, as shown in the Figure 2, representation 20b.
  • This lifting of the pole feet can also be done symmetrically at each of the legs 3 of the supporting frame. Then, as shown in Figure 2 diagram 20c, the first line of post legs comes to rest on the ground on the layer of insulation that has been added, while the second line of post legs is raised and so on. Thanks to the dimensions of the stud base soles, the contact pressure with the bottom of the tank or of the hollow element is limited and this avoids any degradation of the surface of the bottom of the hollow element. Such a configuration is only possible thanks to the entire configuration of the scaffolding which makes it possible to free 70% of the bottom of the hollow element.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Movable Scaffolding (AREA)

Claims (7)

  1. Gerüst
    - für das Arbeiten im Inneren von hohlen Elementen (1) mit großen Abmessungen, beispielsweise Tanks, Steinbrüchen etc,
    - gebildet durch eine Tragstruktur, die dazu bestimmt ist, sich am Boden abzustützen und die versehen ist mit modularen Plattformen (6), die auf veränderlichen Höhen vorspringend am Umfang der Struktur angeordnet sind, und mit Mitteln (7) zum Zugang zu den Plattformen,
    dadurch gekennzeichnet, daß
    a) die Tragstruktur durch zwei Beine (3) gebildet ist, die miteinander durch wenigstens zwei Traversen (4, 5) verbunden sind, welche glatte Böden bilden, auf unterschiedlichen Niveaus angeordnet sind und den Aufbau versteifen,
    b) die modularen Plattformen (6) an der Außenseite der Beine (3) angeordnet sind und
    c) die Mittel (7) zum Zugang zu den Plattformen in den Beinen (3) oder in der Nähe der Beine (3) angeordnet sind
    und daß
       d) die Beine der Tragstruktur jeweils mit wenigstens zwei, vorzugsweise drei (9a, 9b, 9c) Reihen von Stützfüßen versehen sind, die parallel zur Längsachse des Gerüstes angeordnet sind, wobei die Stützfüße in der Höhe einstellbar sind, um das zeitweilige Abheben wenigstens einer Reihe von Stützfüßen pro Bein zu ermöglichen.
  2. Gerüst nach Anspruch 1,
    dadurch gekennzeichnet, daß die modularen Plattformen (6) an demjenigen Ende, das dem Ende, an dem sie mit dem Bein (3) verbunden sind, abgewandt ist, ein teleskopisches Teil (8) aufweisen.
  3. Gerüst nach Anspruch 2,
    dadurch gekennzeichnet, daß das teleskopische Teil (8) durch wenigstens zwei Teleskoparme gebildet ist, die einen abnehmbaren Boden halten und deren Enden durch ein Verbindungsorgan (15) verbunden sind, an dem die Bedienperson angreift, um die Länge der Arme zu verändern.
  4. Gerüst nach Anspruch 3,
    dadurch gekennzeichnet, daß das Verbindungsorgan (15) gleichermaßen eine Platte bildet, die jedes ungewollte Fallen von Gegenständen verhindert.
  5. Gerüst nach einem der Ansprüche 2 bis 4,
    dadurch gekennzeichnet, daß die Arme mit Einrastmitteln versehen sind, die das Verriegeln der Arme bei vorbestimmten Längen ermöglichen.
  6. Gerüst nach einem der Ansprüche 1 bis 5,
    dadurch gekennzeichnet, daß die konstitutiven Elemente des Gerüstes derart ausgebildet sind, daß ihre Trennung es ermöglicht, Elemente mit sehr geringem Raumbedarf zu erhalten.
  7. Verwendung des Gerüstes nach einem der Ansprüche 1 bis 6 beim Anbringen von Isoliermaterial an den Wänden eines Tankes eines Flüssiggas-Tankers.
EP93906661A 1992-03-30 1993-03-24 Gerüst Expired - Lifetime EP0635089B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9203798 1992-03-30
FR9203798A FR2689161B1 (fr) 1992-03-30 1992-03-30 Echafaudage.
PCT/FR1993/000295 WO1993020307A1 (fr) 1992-03-30 1993-03-24 Echafaudage

Publications (2)

Publication Number Publication Date
EP0635089A1 EP0635089A1 (de) 1995-01-25
EP0635089B1 true EP0635089B1 (de) 1996-12-18

Family

ID=9428220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93906661A Expired - Lifetime EP0635089B1 (de) 1992-03-30 1993-03-24 Gerüst

Country Status (7)

Country Link
US (1) US5613573A (de)
EP (1) EP0635089B1 (de)
KR (1) KR0174764B1 (de)
DE (1) DE69306771T2 (de)
FI (1) FI944307A (de)
FR (1) FR2689161B1 (de)
WO (1) WO1993020307A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2804984B1 (fr) 2000-02-10 2002-09-20 Entrepose Echafaudages Systeme d'echafaudage pour capacites de formes diverses
KR101083440B1 (ko) * 2005-03-25 2011-11-14 대우조선해양 주식회사 비계장치
JP4583394B2 (ja) * 2006-03-03 2010-11-17 韓国ガス公社 足場装置およびそれを用いた断熱システムの設置方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910379A (en) * 1973-11-30 1975-10-07 Robert E Miller System for construction of monolithic concrete tanks and silos
SU510572A1 (ru) * 1974-05-12 1976-04-15 Предприятие П/Я Р-6476 Леса
GB1472458A (en) * 1974-06-21 1977-05-04 Shell Int Research Apparatus and a method for treating a surface in particular for spraying an insulating foam on a wall
FR2290347A1 (fr) * 1974-11-08 1976-06-04 Mitsubishi Heavy Ind Ltd Systeme d'echafaudage, notamment pour travaux dans les cales de navires
CH582816A5 (de) * 1975-02-14 1976-12-15 Vevey Atel Const Mec
US4057943A (en) * 1976-02-23 1977-11-15 Swiss Fabricating, Inc. Modular scaffolding for assembling the inside of an LNG vessel
FR2384708A1 (fr) * 1977-03-21 1978-10-20 Reus Bv J De Appareil du type echafaudage pour l'execution de travaux dans des enceintes de grande capacite
DE3611431C2 (de) * 1986-04-05 1995-09-21 Eberhard Layher Gerüststützeinrichtung für Gehwegüberbrückungen

Also Published As

Publication number Publication date
DE69306771T2 (de) 1997-06-26
DE69306771D1 (de) 1997-01-30
KR950701034A (ko) 1995-02-20
FI944307A0 (fi) 1994-09-16
FR2689161B1 (fr) 1996-09-13
FR2689161A1 (fr) 1993-10-01
KR0174764B1 (ko) 1999-02-18
WO1993020307A1 (fr) 1993-10-14
FI944307A (fi) 1994-09-16
EP0635089A1 (de) 1995-01-25
US5613573A (en) 1997-03-25

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