WO1997040244A1 - Process for making anchoring points and installation of a structure on a terraced roof, and adapted structures - Google Patents
Process for making anchoring points and installation of a structure on a terraced roof, and adapted structures Download PDFInfo
- Publication number
- WO1997040244A1 WO1997040244A1 PCT/FR1997/000729 FR9700729W WO9740244A1 WO 1997040244 A1 WO1997040244 A1 WO 1997040244A1 FR 9700729 W FR9700729 W FR 9700729W WO 9740244 A1 WO9740244 A1 WO 9740244A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mast
- slab
- base
- recess
- fixed
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element
- H01Q1/1221—Supports; Mounting means for fastening a rigid aerial element onto a wall
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
- E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
- E04D13/1407—Junctions of roof sheathings to chimneys or other parts extending above the roof for flat roofs
-
- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
- E04G21/3223—Means supported by building floors or flat roofs, e.g. safety 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
- E04G21/3276—Arrangements on buildings for connecting safety-lines
- E04G21/328—Arrangements on buildings for connecting safety-lines fastened to the roof covering or insulation
Definitions
- the subject of the invention is a method of producing an anchor point on a platform consisting of a concrete slab, as well as the anchor devices thus produced and also covers a method of installing a structure on a terraced platform, by means of such anchoring devices.
- the invention applies in particular to the installation, on a terrace, of supports for telecommunication equipment or safety rails and also covers structures suitable for this process.
- the national territory is covered by reception and transmission antennas as part of a radio communication network. If this network is relatively simple outside agglomerations, it is not the same inside cities.
- an antenna should be placed as high as possible and that is why, generally, the privileged sites for the fixing of antennas, are terraces located on the roofs of buildings of quite high height.
- the antennas can be 2 or 3 m long, for example, and are attached to metal masts. Due to the wind resistance, the mast is subjected to forces which can be significant and must therefore be anchored on the terrace.
- a building terrace consists, normally, of a resistant concrete slab covered with an insulating wall itself covered with a waterproofing layer and, more often than not with a layer gravel.
- a device called a "weight floor” consisting of a relatively rigid plate on which the mast is fixed and the weight of which is distributed over a fairly large area so as not to damage the sealing cover.
- this plate can be made of octagonal concrete slabs, more manageable, which are assembled in a support in order to produce a homogeneous slab.
- This can be, for example, triangular, the mast being fixed on an angle is maintained by two tie rods or "struts" fixed at the other two angles.
- the set of slabs forms a raft-weight which ensures the stability of the whole to the forces due to the wind. It was found that, despite the precautions taken, such a mounting method, based directly on the sealing and thermal insulation complex, could harm in the long run, the good durability of the sealing complex.
- the object of the invention is to solve all the problems which have just been explained by means of a new anchoring device making it possible to maintain a structure such as an antenna support mast, without risk. deterioration of the seal.
- the anchoring device according to the invention can be applied to any type of structure and can be used, for example, for laying, on an existing terrace, a safety railing.
- the invention therefore relates, in general, to a method of producing an anchor point on a platform consisting of a concrete slab covered with an insulating complex, itself covered with a waterproof cover.
- the method according to the invention comprises the following steps:
- junction and closure piece comprising a vertical sleeve threaded over the part of the fixing rod extending above the level of the waterproof cover and an annular plate for covering the waterproof cover around the periphery of the recess,
- the anchor point consists of a concrete block forming a prefabricated stud in which is sealed at least one fixing rod having a part embedded in the stud and a waiting part protruding outside, the concrete stud having a height corresponding to that of the insulating and waterproof complex increased by a safety height.
- a recess is cut in the waterproof cover and the insulating complex to release a part of the slab in which at least one sealing hole is drilled.
- the prefabricated stud is then placed in the recess, sealing in each hole the waiting part of each fixing rod, then a connecting and sealing piece comprising a vertical sleeve having a cross section is threaded onto the stud.
- the concrete stud is provided with at least two fixing rods, the parts of which are embedded in said stud are connected by a hoop on which the internal part of the anchoring member is hung.
- the external part of the anchoring member is a ring or hook secured to a threaded rod which is screwed into an internally threaded sleeve and constituting the internal part sealed in the concrete block.
- the anchoring member is associated with a covering part in the form of an inverted bowl comprising a peripheral edge forming a drip line and externally surrounding the upper part of the vertical sleeve so as to avoid the entry of water to the inside of it.
- the invention also covers a method of installing a structure on a flat roof, by means of such anchoring devices and applies especially to the fixing of an apparatus support comprising a substantially vertical mast held on a base bearing on the terrace and on which the apparatus is fixed, said base being provided with at least three positioning elements each fixed on an anchoring member according to the invention.
- the apparatus support comprises:
- - a rigid base consisting of beams and fixed on at least three anchoring devices, - a mast perpendicular to the horizontal base having a lower end fixed to a part of the base,
- the base has a polygonal shape having at least three vertices each fixed on an anchoring device according to the invention, the mast being fixed on a vertex and the struts being connected to the other two vertices.
- the base may also have the shape of a three-pointed star extending radially from a center on which the mast rests, the latter being held in place by struts or guy wires fixed to the ends of the three branches which are themselves fixed to an anchoring device according to the invention.
- each anchoring device advantageously consists of a rod sealed in the slab comprising an external fixing part and each top of the base is fixed to a piece embedded on the upper end of the external part of the stem.
- the mast is supported on the terrace and is held in vertical position by at least three shrouds fixed on the slab, the support of the mast and the fixing means of the shrouds each being constituted by a device for anchor according to the invention, comprising a prefabricated concrete stud provided with at least one fixing rod sealed in the slab and comprising a junction member with the sealing cover.
- a device for anchor according to the invention comprising a prefabricated concrete stud provided with at least one fixing rod sealed in the slab and comprising a junction member with the sealing cover.
- the invention is specially provided for fixing, on a terrace, an apparatus support structure but it can find other applications, for example, for the mounting of a safety railing comprising a frame. rigid fixed to the terrace by at least two anchoring members according to the invention.
- Figure 1 is a schematic perspective view of an apparatus support structure fixed to three anchor points in a first embodiment of the invention.
- Figure 2 is a sectional view of a device for anchoring the structure.
- Figure 3 is a perspective view of another embodiment of a support structure according to the invention.
- FIG. 4 is a sectional view of an anchoring device adapted to the embodiment of FIG. 3.
- Figure 5 is a sectional view of an anchoring device according to an alternative embodiment.
- Figure 6 shows in perspective an application of the invention to the installation of a safety railing.
- FIG. 7 represents the successive steps (a) to (f) of an embodiment and installation of an anchoring device in the slab.
- Figure 8 shows the mounting of a removable rung.
- Figure 9 shows, in partial section, the anchoring of a guardrail according to Figure 6.
- a structure (A) of device support comprising a base i fixed on three anchor points 2 on a terrace (B) and supporting a mast 3 held in vertical position by two tie rods forming struts 31.
- Each anchor point is implemented by cutting and sealing in the terrace complex
- (B) which comprises a resistant slab 4 covered with an insulating wall 41, itself covered with a waterproof cover 42.
- the insulation and sealing complex covering the slab may comprise a vapor barrier 44 and a layer of gravel 43 covering the waterproof covering 42.
- the terrace is conventionally formed by superposition of means ensuring respectively resistance, insulation, sealing and protection.
- the terrace is generally limited by a lateral border forming a cornice or "acroterion" along which the waterproof cover must be raised to form a leak-tightness over a safety height (h) generally fixed by the regulations in force.
- the base has a triangular shape and is fixed by its vertices to the three anchor points. It must have a sufficiently large seat to ensure good stability of the assembly and absorb the forces due to the wind.
- An anchoring device (C) according to the invention is shown in detail in Figure 2, Figure 7 showing the production steps.
- a recess 5 is provided at the location of the anchoring, over the entire thickness of the insulating wall 41 and the waterproof cover 42 ( step a), so as to discover part 40 of the slab 4.
- the anchoring device consists essentially of a fixing rod 2, the lower part 21 of which is sealed in a hole 20 drilled in the slab 4.
- a vertical hole 20 is drilled substantially in the center of the exposed part 40 of the slab 4 forming the bottom of the recess 5 (step b) to allow the sealing of a fixing rod 2.
- the sealed part 21 can have a length of between 100 and 150 mm, for example.
- the fixing rod 2 therefore comprises a lower sealing part 21, an internal part 22 which extends over the entire height of the recess 5, up to the level of the sealing layer 42, and an external part 23 which protrudes above the sealing layer 42 and, optionally, the gravel layer 43, over a height greater than the safety height (h) defined by the regulations and which varies depending on the site but can be, for example, 0.15 m or more.
- the recess 5 around the rod 2 is then filled by a cylindrical block 51 made of an insulating material, for example, a polyurethane foam or the like (step d).
- This filling block 51 is provided with a central orifice and is threaded onto the fixing rod 2. It has a height substantially equal to the height (hl) of the insulating wall 41 and of the waterproof cover 42 so as to be stop at the upper face thereof.
- a connecting piece 6 is threaded onto the external part 23 of the rod 2 (step f).
- This junction piece 6 comprises a vertical sleeve 61 forming a height-tightness rise (h) and extended at its base by an annular plate 62 which extends horizontally above the filling block 51, largely protruding from the recovery d seal 63 in which it is embedded.
- the junction piece 6 is made of an oxidation-resistant material such as lead or copper and the upper part 64 of the sleeve 61 is constricted and kept applied to the rod 2 by a clamp 65 so sealing.
- the upper end 24 of the rod 2 protrudes above the sleeve 61 to ensure the attachment of the base 1.
- the end 24 of the rod can be embedded and / or screwed into a solid piece 11 forming an organ for anchoring the base 1.
- each solid part 11 constitutes a vertex of the triangle, the base 1 consisting of beams 12 bolted, at their ends, to the solid parts 11. Furthermore, the underside of each part massive 11 is advantageously provided with a counterbore 13 in the form of an inverted bowl which protrudes around the sleeve 61 and is limited by a spoiler 14 forming a drip line so as to avoid the ingress of water between the rod and the sleeve.
- the safety height (h) of the sleeve 61 can vary depending on the site.
- the apparatus support shown in FIG. 1 comprises a vertical mast 3 supporting an antenna, not shown, and fixed, by its lower part, to one of the solid parts 11 disposed at the top of the triangular base 1.
- the mast 3 is held in a vertical position by two tie rods 31 forming struts which connect the upper part of the mast 3 to two fixing points 15 placed near the other two vertices of the horizontal base.
- the two pins have an adjustable length, for example by means of two threaded bushes against the direction 16, forming a rigging screw.
- adjustment means can make it possible to adjust the horizontality of the base relative to the terrace.
- the height of the mast can range, for example, from 3 m to 6 m or more relative to the waterproof complex.
- the base must be sufficiently wide, the poachers making an angle of about 30 ° with the mast.
- the mast can advantageously be provided with a plurality of steps 32 allowing maintenance personnel to access the antenna. These steps are regularly spaced, alternately on either side of the mast.
- each rung 32 has a triangular shape comprising a horizontal bar 32 'provided, on the side facing the mast 3, with a tenon 35 and a vertical part 33 on which is fixed a lower support plate 34 spaced vertically down.
- the lug 35 is provided with a shoulder and can be inserted into a hole 36 in the mast 3, the latter being hollow.
- the holes 36 narrow downward to allow passage and blocking of the shoulder 35 of the post.
- the support plate is sufficiently wide and has a profile corresponding to that of the mast so as to partially wrap it to ensure the stability of the rung and, moreover, avoid any risk of matting.
- FIG. 3 in particular, schematically shows another embodiment using slightly different anchoring devices and shown in detail in FIG. 4.
- the filling block of the recess is a prefabricated concrete stud 7 in which at least two fixing rods 2 ′ have been sealed in advance, including the parts 22 ′ embedded in the concrete stud 7 are advantageously connected by a hoop 23 on which is hooked an anchoring member 8.
- the concrete stud 7 has a height at least equal to the thickness (hl) of the insulating wall 41 and of the waterproof cover 42, increased by the safety height (h) and therefore comprises an external portion 71 of height (h) projecting above the waterproof cover 42.
- the filling pad is associated with a junction piece 6 'which includes a sleeve 61' and an annular plate 62 '.
- the sleeve 61 ′ has a cross section slightly greater than that of the concrete stud 7 so that it can be slid onto it to make a sealing rise at the stud 7, the annular plate 62 ′ extending widely above the waterproof cover 42 and being embedded in a bituminous layer 63 'to ensure the continuity of the seal.
- the upper part of the sleeve is kept applied to the side wall 72 of the concrete pad 7 by a clamp 65 '.
- the anchoring member 8 is associated with a metal covering cap 81 in the form of an inverted bowl, the peripheral edge 82 of which surrounds the clamp 65 'externally to form a drip line preventing any flow of water between the concrete stud and the sleeve 61 '.
- the anchoring member 8 comprises an external part 83 in the form of a ring or hook an internal part 84 sealed in the concrete stud 7.
- this can be a socket 84 internally threaded and into which is screwed a threaded rod 85 integral with the ring 83 and passing through an orifice in the cap 81.
- the concrete stud 7 is provided with four fixing rods 2 'connected in pairs, by two arches which intersect in the upper part of the stud 7 and the socket 84 can be hung on the crossing point to improve the sealing.
- Such an anchoring device can withstand tearing forces and is specially adapted for mounting a support structure of the type shown in FIG. 3.
- This apparatus support comprises a vertical mast 3 supporting an antenna and held by shrouds 31 'each fixed on the ring 83 of an anchoring device of the type which has just been described.
- the mast 3 can be fixed to its base, for example by a hinge 37, on a concrete pad of the same type.
- FIG 5 there is shown another embodiment.
- the fixing rod 2 is placed in the manner described above and associated with a junction piece 6 ensuring the sealing rise.
- the bottom 40 of the recess 5 can be covered with a steel disc 45 threaded on the rod 2 and on which is tightened a nut 46 screwed onto the rod 2 which is threaded over at least part of its height.
- the base 1, of triangular or other shape, consists of profiles 12 ′ with inverted U section of which at least one end is notched so as to allow an overlap at each vertex which thus constitutes an assembly point coming to be applied on the end of a fixing rod 2 sealed in the slab 4 as described above.
- Each rod 2 is provided, at its upper end, with a bolt 25 on which can be engaged superimposed orifices formed at the ends of the two corresponding sections 12 ′.
- a washer 17 with a concave lower face forming a spoiler is threaded onto the bolt 25, covering the upper part of the sleeve 61.
- the assembly is tightened by a nut so as to constitute an anchoring member for the base 1.
- a U-shaped part having two wings pierced can be fixed on the base 1 so as to constitute a clevis 15 for assembling a mast holding rod 3.
- the base 1 does not necessarily have the triangular shape shown in FIG. 1.
- the base can still be fixed on three anchor points by the ends of the three branches on which are fixed struts or stays for keeping the mast 3
- Figure 6 shows a safety railing consisting of a vertical frame 9 having two vertical uprights 91 which can be fixed each on an anchoring device according to the invention.
- Such a guardrail can be permanently mounted or, only, if necessary.
- the frame 9 can be fixed, in a removable manner, by collars 90, on uprights 91 individually fixed on an anchor rod of the type shown in FIGS. 2 and 5.
- each upright 91 can consist of a tube closed at its base by a plate 92 under which is welded a nut 94 which can be screwed on the end threaded 24 of the rod 2, a lock nut blocking the upright 91.
- the plate 92 can be extended downwards by a ferrule 93 covering the fixing system to prevent water ingress.
- the uprights 91 could also be rigidly fixed to a horizontal base made up of inverted U-shaped sections bolted to anchor rods sealed in the slab, as shown in FIG. 5.
- the anchoring system according to the invention in particular if the fixing rods 2 are used, has the advantage of removing the base fixed on it from the roof.
- This provision which allows in particular the arrival of cables directly under the base, is advantageous for fixing all kinds of equipment, for example radio bays, air conditioning cabinets, etc.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
- Building Environments (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97921872A EP0894171A1 (en) | 1996-04-23 | 1997-04-23 | Process for making anchoring points and installation of a structure on a terraced roof, and adapted structures |
AU27780/97A AU2778097A (en) | 1996-04-23 | 1997-04-23 | Process for making anchoring points and installation of a structure on a terraced roof, and adapted structures |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9605111A FR2747710B1 (en) | 1996-04-23 | 1996-04-23 | DEVICE FOR ANCHORING A STRUCTURE ON A TERRACE ROOF AND SUITABLE STRUCTURES |
FR96/05111 | 1996-04-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997040244A1 true WO1997040244A1 (en) | 1997-10-30 |
Family
ID=9491506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1997/000729 WO1997040244A1 (en) | 1996-04-23 | 1997-04-23 | Process for making anchoring points and installation of a structure on a terraced roof, and adapted structures |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0894171A1 (en) |
AU (1) | AU2778097A (en) |
FR (1) | FR2747710B1 (en) |
WO (1) | WO1997040244A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020023826A (en) * | 2018-08-07 | 2020-02-13 | 株式会社竹中工務店 | Extension method of facility stand |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1475122A (en) * | 1966-03-26 | 1967-03-31 | Sealing tile for masts, especially antenna masts | |
US4015827A (en) * | 1975-11-21 | 1977-04-05 | Brand Harold E | Support stanchion |
DE3022037A1 (en) * | 1980-06-12 | 1981-12-17 | Hans-Klaus 6072 Dreieich Korff | Roof safety anchor without cold bridge - has heat insulating tubular shaft filling and sheath, with anchor plate underlay |
DE3148046A1 (en) * | 1981-12-04 | 1983-06-16 | Hans-Klaus 6072 Dreieich Korff | Anchoring pin |
US4462573A (en) * | 1983-08-22 | 1984-07-31 | Samuel T. Melfi | Support post for temporary guard-rail chains |
DE8814815U1 (en) * | 1988-11-29 | 1989-01-12 | M. Busch Gmbh & Co Kg, 5780 Bestwig, De | |
US4932185A (en) * | 1988-03-25 | 1990-06-12 | Marc Lebel | Window cleaner's safety line anchor |
-
1996
- 1996-04-23 FR FR9605111A patent/FR2747710B1/en not_active Expired - Fee Related
-
1997
- 1997-04-23 WO PCT/FR1997/000729 patent/WO1997040244A1/en not_active Application Discontinuation
- 1997-04-23 EP EP97921872A patent/EP0894171A1/en not_active Withdrawn
- 1997-04-23 AU AU27780/97A patent/AU2778097A/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1475122A (en) * | 1966-03-26 | 1967-03-31 | Sealing tile for masts, especially antenna masts | |
US4015827A (en) * | 1975-11-21 | 1977-04-05 | Brand Harold E | Support stanchion |
DE3022037A1 (en) * | 1980-06-12 | 1981-12-17 | Hans-Klaus 6072 Dreieich Korff | Roof safety anchor without cold bridge - has heat insulating tubular shaft filling and sheath, with anchor plate underlay |
DE3148046A1 (en) * | 1981-12-04 | 1983-06-16 | Hans-Klaus 6072 Dreieich Korff | Anchoring pin |
US4462573A (en) * | 1983-08-22 | 1984-07-31 | Samuel T. Melfi | Support post for temporary guard-rail chains |
US4932185A (en) * | 1988-03-25 | 1990-06-12 | Marc Lebel | Window cleaner's safety line anchor |
DE8814815U1 (en) * | 1988-11-29 | 1989-01-12 | M. Busch Gmbh & Co Kg, 5780 Bestwig, De |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020023826A (en) * | 2018-08-07 | 2020-02-13 | 株式会社竹中工務店 | Extension method of facility stand |
JP7049961B2 (en) | 2018-08-07 | 2022-04-07 | 株式会社竹中工務店 | How to add equipment mount |
Also Published As
Publication number | Publication date |
---|---|
FR2747710A1 (en) | 1997-10-24 |
FR2747710B1 (en) | 1999-06-11 |
EP0894171A1 (en) | 1999-02-03 |
AU2778097A (en) | 1997-11-12 |
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