FR2974832A1 - Tubular metal structure for constructing temporary scaffolding in building site, has vertical posts connected together by multiple connectors, where connectors are used to assemble railing frames following single non-derogable procedure - Google Patents
Tubular metal structure for constructing temporary scaffolding in building site, has vertical posts connected together by multiple connectors, where connectors are used to assemble railing frames following single non-derogable procedure Download PDFInfo
- Publication number
- FR2974832A1 FR2974832A1 FR1101405A FR1101405A FR2974832A1 FR 2974832 A1 FR2974832 A1 FR 2974832A1 FR 1101405 A FR1101405 A FR 1101405A FR 1101405 A FR1101405 A FR 1101405A FR 2974832 A1 FR2974832 A1 FR 2974832A1
- Authority
- FR
- France
- Prior art keywords
- connectors
- metal structure
- tubular metal
- guard
- frames
- 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.)
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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
- E04G1/14—Comprising essentially pre-assembled two-dimensional frame-like elements, e.g. of rods in L- or H-shape, with or without bracing
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- 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
- E04G5/14—Railings
-
- 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
- E04G5/14—Railings
- E04G5/147—Railings specially adapted for mounting prior to the mounting of the platform
Abstract
Description
Lors de la construction d'édifices, on utilise régulièrement des structures métalliques tubulaires provisoires (figure 1), soit pour travailler en hauteur : échafaudages, soit pour soutenir des charges : étaiements. Ces structures sont constituées principalement de trois types d'éléments : des cadres d'extrémités (1) ou intermédiaires, des gardes corps (2) entre ces cadres et des planchers de travail (3) en général accrochés à certains barreaux des cadres. In the construction of buildings, temporary tubular metal structures are regularly used (figure 1), either to work at height: scaffolding, or to support loads: shoring. These structures consist mainly of three types of elements: end frames (1) or intermediate, guards (2) between these frames and work floors (3) generally attached to some bars frames.
Les recommandations actuelles en matière de sécurité de chantier imposent que le montage et le démontage des structures métalliques provisoires s'effectuent en toute sécurité ; ce qui signifie qu'à toutes les phases du montage et du démontage les opérateurs doivent être entièrement protégés par des garde corps ou des cadres. Le niveau le plus exigeant de ces recommandations stipule que les opérateurs ne peuvent en aucun cas déroger aux procédures de montage et de démontage ; ce qui implique que ces procédures découlent directement de la conception des différents éléments et donc de la façon unique et non équivoque de les assembler. Current site safety recommendations dictate that assembly and dismantling of temporary metal structures is safe; which means that at all stages of assembly and disassembly operators must be fully protected by guardrails or frames. The most demanding level of these recommendations states that operators can not in any way derogate from the assembly and disassembly procedures; which implies that these procedures flow directly from the design of the different elements and therefore from the unique and unambiguous way of assembling them.
Aujourd'hui, la seule réponse à ces nouvelles contraintes a consisté à rajouter aux équipements existants des pièces qui imposent l'ordre de montage. Ces solutions, si elles rendent le montage et le démontage sécurisés, n'imposent cependant pas que les procédures de sécurités ne puissent être dérogées. Today, the only answer to these new constraints has been to add to the existing equipment parts that impose the order of assembly. These solutions, if they make reassembly and disassembly secure, do not, however, require that safety procedures can not be derogated.
La présente invention porte sur une structure métallique tubulaire provisoire composée d'un ensemble d'éléments qui une fois assemblés suivant une procédure unique et non équivoque constitue un échafaudage. Par conception la procédure de montage (et de démontage) est unique et non ambigüe. La séquence de montage est illustrée sur la figure 2 et décrite ci-dessous: The present invention relates to a temporary tubular metal structure consisting of a set of elements that once assembled in a single and unambiguous procedure constitutes a scaffold. By design the mounting procedure (and disassembly) is unique and unambiguous. The mounting sequence is illustrated in Figure 2 and described below:
1) Les pieds ou vérins de base sont positionnés au sol (4) 2) Les cadres de départ (5) sont insérés sur les pieds ou vérins de base. Ces cadres de départ sont munis de fourreaux (8) indispensables pour assembler les garde-corps. ) Les garde-corps (6) sont assemblés sur les cadres de départ grâce aux connecteurs (7) adéquats qui leur sont solidaires et qui viennent s'insérer dans les fourreaux (8) des cadres de départ. Ces connecteurs ont une partie orientées vers le bas pour assurer la connexion avec 5 les cadres inférieurs (ou de départ) et une partie orientée vers le haut pour assurer la connexion avec les cadres supérieurs. D'autre part, ces connecteurs soudés à la membrure inférieure des garde-corps sont au nombre de deux à une extrémité et de un à l'autre extrémité, ce qui impose et assure la continuité du montage. 10 4) Les cadres supérieurs (9) sont, ensuite, assemblés sur les garde-corps précédemment mis en place par insertion de leurs fourreaux bas sur les connecteurs des garde-corps, ceci dans l'alignement vertical avec les cadres inférieurs et suivant l'ordre imposé par le nombre de connecteurs. 5) Lorsque tous les gardes cops et cadres d'un même niveau sont mis en place, les 15 plateaux (10) sont accrochés entre le barreau inférieur d'un cadre et son homologue du cadre suivant (au même niveau). 6) Les étapes 3) et 4) sont répétées jusqu'à atteindre la hauteur souhaitée 1) The base feet or jacks are positioned on the ground (4) 2) The starting frames (5) are inserted on the base feet or jacks. These starting frames are provided with sleeves (8) essential to assemble the guardrails. ) The guardrails (6) are assembled on the starting frames by means of connectors (7) which are integral with them and which are inserted into the sleeves (8) of the starting frames. These connectors have a downward pointing portion for connection to the bottom (or starting) frames and an upwardly facing portion for connection to the top frames. On the other hand, these connectors welded to the lower chord of the guardrails are two in number at one end and one at the other end, which imposes and ensures the continuity of assembly. 4) The upper frames (9) are then assembled on the guardrails previously set up by inserting their lower sleeves on the connectors of the railings, this in vertical alignment with the lower frames and following the order imposed by the number of connectors. 5) When all cops guards and cadres of the same level are set up, the 15 trays (10) are hung between the lower bar of a frame and its counterpart of the next frame (at the same level). 6) Steps 3) and 4) are repeated until reaching the desired height
Dans une première réalisation un échafaudage de façade est réalisé avec un ensemble 20 d'éléments de ce type. Cet ensemble (figure 4) est constitué six éléments novateurs: In a first embodiment, a façade scaffold is made with a set of elements of this type. This set (Figure 4) consists of six innovative elements:
- élément de départ (11) et figure 5 - garde corps (12) et figure 6 -cadre échelle (13) figure 7 25 -cadre intermédiaire (14) figure 8 - lisse (15) figure 9 - lisse d'extrémité (16) figure 10 - Starting element (11) and Figure 5 - Guard (12) and Figure 6 - Scale scale (13) Figure 7 25 - Intermediate frame (14) Figure 8 - Smooth (15) Figure 9 - Smooth end (16) ) figure 10
Et de deux éléments classiques : 30 -vérin (17) -plancher (18) And two classic elements: 30 -verin (17) -plate (18)
L'assemblage de ces éléments se fait grâce à un système d'attaches (figure 3) basé sur des connecteurs (7) qui s'emboitent avec des fourreaux (8) de façon non ambigüe. Le nombre de connecteurs (ou de fourreaux) ainsi que leurs positions sur chaque élément impose l'ordre dans lequel l'assemblage se fait et en interdit tout autre. L'élément de départ (figure 5) est constitué de deux tubes (poteaux) verticaux liés en partie supérieure par une traverse horizontale. A chaque extrémité de cette traverse sont soudés sur une platine et selon un axe perpendiculaire à la traverse, trois fourreaux verticaux régulièrement espacés, le fourreau central étant concentrique avec le tube (poteau). The assembly of these elements is done through a system of fasteners (Figure 3) based on connectors (7) which fit with sleeves (8) unambiguously. The number of connectors (or sleeves) and their positions on each element imposes the order in which the assembly is done and prohibits any other. The starting element (Figure 5) consists of two vertical tubes (poles) linked in the upper part by a horizontal crossbar. At each end of this cross are welded on a plate and along an axis perpendicular to the cross, three vertical sleeves evenly spaced, the central sleeve being concentric with the tube (post).
Le garde corps (figure 6) est constitué par un tube cintré en forme de U tourné vers le bas. La largeur de ce U est égale à la largeur de la maille de l'échafaudage. L'inertie de ce U est assurée grâce à un autre tube cintré en forme de V soudé à l'intérieur du U ; les deux branches du V forment ainsi une diagonalisation des angles supérieurs du garde-corps. Au tiers de la hauteur du garde-corps est soudée une platine. Sur cette platine sont soudés les connecteurs doubles (deux sur l'une et un sur l'autre). De façon accessoire, une sous-lisse est fixée transversalement à mi-hauteur ainsi qu'une plinthe au niveau des platines. La rigidité de l'assemblage est acquise grâce à deux double crochets (29) soudés sur les montants verticaux, sur ces crochets viennent s'encastrer un barreau de cadre d'extrémité (31) ou les ergots des cadres intermédiaires (39). The guard (Figure 6) consists of a U-shaped curved tube facing downwards. The width of this U is equal to the width of the mesh of the scaffolding. The inertia of this U is ensured thanks to another V-shaped curved tube welded inside the U; the two branches of the V thus form a diagonalization of the upper corners of the guardrail. At the third of the height of the railing is welded a plate. On this plate are welded double connectors (two on one and one on the other). Incidentally, a sub-smooth is fixed transversely at mid-height and a plinth at the level of the plates. The rigidity of the assembly is acquired by means of two double hooks (29) welded to the vertical uprights, on these hooks are embedded an end frame bar (31) or the pins of the intermediate frames (39).
Le cadre échelle (figure 7) est constitué de deux montants verticaux (30) liés par des barreaux horizontaux (31), régulièrement espacés d'une distance conforme à l'entraxe autorisé pour les barreaux des échelles de chantier. Similairement au cadre de départ, à chaque extrémité des montants verticaux sont soudés sur une platine et selon un axe perpendiculaire aux barreaux, trois fourreaux verticaux (32) régulièrement espacés, le fourreau central étant concentrique avec le tube (poteau). 3 5 Le cadre intermédiaire (figure 8) est de construction identique à celle du cadre échelle à la différence près que le cadre intermédiaire ne possède que le premier barreau du bas (36). Chaque montant (35) est pourvu de quatre ergots (39) horizontaux sur lesquels viendront s'accrocher les garde-corps. La lisse (figure 9) est un tube horizontal dont chaque extrémité est terminée par une platine identique aux platines de connexion du garde corps, sur ces platines sont soudés les connecteurs (41). The scale frame (Figure 7) consists of two vertical uprights (30) connected by horizontal bars (31), regularly spaced a distance according to the center distance allowed for the rungs ladders site. Similarly to the starting frame, at each end of the uprights are welded to a plate and along an axis perpendicular to the bars, three vertical sleeves (32) regularly spaced, the central sleeve being concentric with the tube (post). The intermediate frame (FIG. 8) is of identical construction to that of the ladder frame, with the difference that the intermediate frame has only the first lower bar (36). Each upright (35) is provided with four horizontal pins (39) on which the guardrails will hang. The smooth (Figure 9) is a horizontal tube, each end is terminated by a plate identical to the connection plates of the guard, on these plates are welded connectors (41).
10 La lisse d'extrémité (figure 8) est un tube horizontal (42) terminé à chaque extrémité par un fourreau vertical (43); l'entraxe entre les deux fourreaux est égal à l'entraxe des montants des cadres. The end rail (Fig. 8) is a horizontal tube (42) terminated at each end by a vertical sleeve (43); the distance between the two sleeves is equal to the spacing between the amounts of the frames.
Une autre réalisation reprend des éléments similaires dont les cadres ont des montants 15 verticaux dimensionnés de telle sorte qu'ils puissent reprendre des charges verticales importantes sans flambement notable. Another embodiment incorporates similar elements whose frames have vertical uprights dimensioned so that they can take up significant vertical loads without noticeable buckling.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1101405A FR2974832B1 (en) | 2011-05-06 | 2011-05-06 | PROVISIONAL TUBULAR METAL STRUCTURE WITH SAFETY ASSEMBLY AND DISASSEMBLY |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1101405A FR2974832B1 (en) | 2011-05-06 | 2011-05-06 | PROVISIONAL TUBULAR METAL STRUCTURE WITH SAFETY ASSEMBLY AND DISASSEMBLY |
Publications (2)
Publication Number | Publication Date |
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FR2974832A1 true FR2974832A1 (en) | 2012-11-09 |
FR2974832B1 FR2974832B1 (en) | 2014-05-23 |
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Application Number | Title | Priority Date | Filing Date |
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FR1101405A Active FR2974832B1 (en) | 2011-05-06 | 2011-05-06 | PROVISIONAL TUBULAR METAL STRUCTURE WITH SAFETY ASSEMBLY AND DISASSEMBLY |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3010433A1 (en) * | 2013-09-09 | 2015-03-13 | Cdh Group | BODY FOR SCAFFOLDING AND ITS MOUNTING METHOD, AND SCAFFOLD EQUIPPED WITH SUCH A GARDE-BODY |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1231938A (en) * | 1958-07-10 | 1960-10-04 | British Building & Engineering | Improvements to scaffolding |
FR1335881A (en) * | 1962-01-30 | 1963-08-23 | metal scaffolding, especially for construction | |
FR1491339A (en) * | 1966-06-02 | 1967-08-11 | Fives Penhoet | Prefabricated panel and its junction element for the rapid erection of various consturctions |
FR2887907A1 (en) * | 2005-06-30 | 2007-01-05 | Comabi Sa | Temporary balustrade for scaffolding of building, has frame made of aluminum, and fixation pins for positioning frame in one vertical plane situated in front of another vertical plane passing through posts during utilization of balustrade |
-
2011
- 2011-05-06 FR FR1101405A patent/FR2974832B1/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1231938A (en) * | 1958-07-10 | 1960-10-04 | British Building & Engineering | Improvements to scaffolding |
FR1335881A (en) * | 1962-01-30 | 1963-08-23 | metal scaffolding, especially for construction | |
FR1491339A (en) * | 1966-06-02 | 1967-08-11 | Fives Penhoet | Prefabricated panel and its junction element for the rapid erection of various consturctions |
FR2887907A1 (en) * | 2005-06-30 | 2007-01-05 | Comabi Sa | Temporary balustrade for scaffolding of building, has frame made of aluminum, and fixation pins for positioning frame in one vertical plane situated in front of another vertical plane passing through posts during utilization of balustrade |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3010433A1 (en) * | 2013-09-09 | 2015-03-13 | Cdh Group | BODY FOR SCAFFOLDING AND ITS MOUNTING METHOD, AND SCAFFOLD EQUIPPED WITH SUCH A GARDE-BODY |
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Publication number | Publication date |
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FR2974832B1 (en) | 2014-05-23 |
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