WO1996000338A1 - Systeme de cloture en maçonnerie prefabriquee - Google Patents

Systeme de cloture en maçonnerie prefabriquee Download PDF

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Publication number
WO1996000338A1
WO1996000338A1 PCT/AU1995/000365 AU9500365W WO9600338A1 WO 1996000338 A1 WO1996000338 A1 WO 1996000338A1 AU 9500365 W AU9500365 W AU 9500365W WO 9600338 A1 WO9600338 A1 WO 9600338A1
Authority
WO
WIPO (PCT)
Prior art keywords
post
fence
masonry
panel
web
Prior art date
Application number
PCT/AU1995/000365
Other languages
English (en)
Inventor
Phillip Hanford Boot
Original Assignee
Phillip Boot Holdings Pty. Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Phillip Boot Holdings Pty. Limited filed Critical Phillip Boot Holdings Pty. Limited
Priority to AU27078/95A priority Critical patent/AU684643B2/en
Priority to JP8502644A priority patent/JPH09507887A/ja
Publication of WO1996000338A1 publication Critical patent/WO1996000338A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H17/00—Fencing, e.g. fences, enclosures, corrals
    • E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
    • E04H17/16—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts using prefabricated panel-like elements, e.g. wired frames
    • E04H17/168—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts using prefabricated panel-like elements, e.g. wired frames using panels fitted in grooves of posts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • E04C3/07—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/30—Columns; Pillars; Struts
    • E04C3/32—Columns; Pillars; Struts of metal

Definitions

  • Masonry fencing is by far the oldest and most sought after type of fencing since the beginning of walled structures. Most fencing is installed for security or privacy and masonry is the best type for these purposes, it is also the most difficult to build and expensive of all the types available.
  • All designs and types of fencing must resist wind forces for stability, this is accomplished in two ways, firstly by sheer weight and mass which results in a very thick and expensive wall, secondly by having piers or posts at appropriate intervals along the fence length anchored securely into the ground.
  • the second method is obviously the easiest and most economical.
  • the usual method of constructing masonry fencing commences with the foundation consisting of a horizontal reinforced concrete beam formed by excavating a trench in the earth and after reinforcement is installed, the trench is filled with concrete.
  • the next step is to construct a wall from bricks or blocks up to the desired height, thickness of the wall can be varied to suit structural requirements for stability under wind conditions.
  • piers or buttresses may be constructed at appropriate intervals to create increased stability and strength, saving on wall thickness, sometimes these piers are reinforced to improve their performance.
  • the invention described herein will produce a masonry fence at less than half the cost of conventional masonry fencing and will also allow these types of fences to be assembled by unskilled labour. It can be built with a minimum of disruption to existing ground as it does not require a large excavation for foundation members. As it is prefabricated it can also be taken down if needed at a later date and reassembled in the same position or at a new location.
  • the present invention consists in a masonry fence made up of a plurality of fence posts with masonry fence elements extending between them, each post being made of lightweight steel and when seen in section consists of two channel section members joined at one end by a transverse member forming the web of the post, the other side of the post being left open for the entry of a masonry fence member, the channel section portions having internal flanges whereby a channel is formed on the side of the post adjacent the transverse member for the reception of an end of a masonry panel member, means being provided to secure masonry panel members against relative movement.
  • each post there is provided within each post at least one stabilising torsion sleeve as described below.
  • the present invention also consists in a fence post for use in the construction of a masonry fence as defined above.
  • masonry as used in this specification means all types of brick, concrete block, stone, reconstructed stone, dense and lightweight concrete and fence members made from cement and lime based materials.
  • Fig. 1 is an elevation of a typical masonry fence built using this method where a light gauge steel post 1, standing and held rigidly in a post hole 2 by insitu concrete 3.
  • Fig. 2 is a plan drawing showing the intersection of the masonry fence panels 4 and the light steel post 1. Also shown is the method of fixing and holding the fence panels to the post 1 by means of a fixing plate 5 and angle bracket 6. The torsion sleeve 9 is omitted for clarity.
  • Fig. 3 is a drawing showing in plan a masonry pier system 7 and how it assembles and attaches to the post 1 and fence panels 4.
  • Fig. 4 is a plan drawing of the post 1 lightweight steel section.
  • Fig. 5 is a plan drawing of the post section 1 and the stabilising torsion sleeve 9.
  • the construction procedure commences with the boring of the post foundations, the post 1 is stood in the hole 2 and concrete 3 is poured around it, securing it in it's final position, after an adequate curing period, usually overnight, the wall panels 4 are delivered and positioned between the posts 1.
  • the steel post is made from thin gauge steel, rolled into a sectional shape that has two enlarged flange ends, offset from the web section.
  • the post section is designed and shaped so as to cover discrepancies in the setting out of the distances between posts and hiding the end of the prefabricated fence panel at the same time. This is achieved by using an open sided steel section for the post on one side and a recess formed into the web section on the other side.
  • One end of a fence wall panel is then introduced into the open side of the first post, the panel is then pivoted about a vertical axis passing through the end in the post and pushed along into the recess on the web of the next post that will support it at it's other end. In this way The wall panel does not have to be lifted higher and Lowered down to fit into the recesses.
  • the panel is now captive and is fixed in position at any suitable time by a fixing plate 5 that is attached to the top of the wall panels and the angle bracket 6 fixed to the web installed earlier.
  • the post system is relatively flexible being of light gauge steel (between 1 mm and 5 mm thick) , the reinforced masonry panels however are very stiff and rigid causing the deformation under load characteristics of the two elements to be quite different.
  • the two elements can freely deform individually under wind force loadings without causing friction and any stress concentrations that could crack the wall panel or buckle the steel post. This effect varies depending on the gap between the flange edges and the wall panel, the post will continue to bend under the wind loading conditions until the wall panel and post flange edges bear against one another or the post buckles.
  • the post anchored rigidly in the concrete base resists the cumulative wind forces by it's stiffness cantilevering from it's rigid base, the buckling forces are concentrated immediately above the concrete ground pier causing the post to fail around where the flanges can rotate around the web. This will be in the lower one third of the overall height of the post above the concrete in ground pier.
  • the torsion sleeve can be as short as 30 mm or if required up to 800 mm long, in this longer instance it would also act like a reinforcing sleeve in the areas of highly concentrated stress that occur in the lower third of the post, it could also, as a longer sleeve be partly embedded in the concrete pier to assist the post immediately adjacent to and above the concrete pier.
  • sleeve edges are shown to follow the contour of the post flange so as to make a snug fit and this is preferred, however a similar effect could be obtained through a suitable means of fixing the bracket edges to the flange.
  • this fixing method could be by rivets, screws or welding as it's purpose is to reinforce and prevent the flange from rotating.
  • the torsion sleeve stabilises and stiffens the post only where it is required and increases the efficiency of the post section using less material and therefore lowering cost.
  • a masonry brick pier is required for aesthetic reasons Fig. 3 indicates how that can be achieved, in the case shown a thin steel channel 8 is cast into the brick pier 7 when manufactured and fits around the projecting flange of the post, the pier can be fixed by screwing to the post at any point if a hole is either left or drilled in the brick joints for access. Alternatively the brick pier may be fixed at the top by a fixing plate and bottom if it can span the full height of the fence.
  • the masonry pier could be made of any thickness and almost any composition of materials using sand, cement or lime eg., resin bonded artificial stone, brick facings or aerated concrete.
  • the prefabricated fence capping 10 which like the vertical pier 7 is similarly made with a longitudinal fixing channel shaped steel insert is then fixed on top of the wall fence panels, finally a cap is fixed on top of the post and the fence is complete.
  • neither the masonry pier or the masonry capping require a metal channel insert to become workable, however they would require a recess to be able to fit over the projecting post, but could be fixed to either the post or the fence panels by a variety of different methods.
  • the entire masonry fence can be constructed and fixed in position with a simple screwdriver by unskilled labour.
  • the size of the wall fence panels can vary, in thickness from 50 mm to 100 mm, in height up to 3 metres and in length up to eight metres.
  • the optimum size wall fence panel would be 50-70 mm thick, 1.5-2 metres high and 3-4 metres long. Panels of this size require a crane or similar lifting and transport system to place them in final position, this is sometimes difficult due to access problems and the panels have to be reduced accordingly down to a weight that allows them to be more easily handled. Sometimes there is only access for manual installation and in this case the panel size or the weight must come down significantly, this is achieved by both shortening the length and decreasing the height so that the panels will sit on top of one another, slotted into the same post configuration and still assembled and fixed in the same way.
  • the size can be affected by the weight of the material which could be significantly reduced, eg., by using aerated concrete panels with a density down to 600 kgs per m3.
  • lightweight concrete bricks or blocks could be used to simulate the finished masonry appearance. These could be specially shaped to facilitate the use of specially designed reinforcing in the horizontal bed joints as well as the vertical core holes and perpendicular joints.
  • the length of the panels is shortened then the number of posts increases so that the panel length is always kept as long as possible.
  • the costs associated with the posts are a critical item as the post installation cost remains fairly constant even though increasing the number decreases the wind loadings on each one, therefore reducing the number and cost of the post system is critical to reducing overall costs.
  • panels can be made lighter without decreasing the length by decreasing the height and stacking them on top of one another so that making up of one large fence panel 4 metres long and 2 metres high could consist of four panels 4 metres long and .5 metre high.
  • each panel When stacked on top of each other this way each panel would have to be fixed to the web at it's top so that this configuration would require four separate fixings, in this way under wind load conditions the panels could articulate and deflect in a similar manner to the post.
  • Another way would be to bond or structurally join the panels together so that they would act as one, the only fixing required would be at the top as originally described.
  • the fence panels require horizontal reinforcing to be able to span economical distances of over three metres, this in turn will vary with the type and thickness of the material used. Special shaped masonry units or bricks may be required to facilitate enough space in the bed joint for that reinforcing, alternatively special reinforcing may be required.
  • any suitable method of manufacture may be used provided that the panels so manufactured have sufficient strength to perform the structural requirements necessary to function as a suitable fence panel 4. If the fence panel 4 was required to be double sided or have a face brick finish on both sides the mortar application procedure as described in the above patent would need to be modified as follows, all excess mortar would have to be screeded off as clean, next a retardant chemical is applied by spray or within a manual applicator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Fencing (AREA)

Abstract

La présente invention concerne un système de clôture en maçonnerie comprenant une pluralité de pieux de clôture (1) et d'éléments de clôture en maçonnerie (4) joignant deux pieux de clôture (1) consécutifs. Chacun de ces pieux de clôture est confectionné en acier léger. En vue de coupe, il présente deux éléments à section ouverte sur un côté, et rejoints entre eux par un élément transversal constituant la membrure. L'autre côté du pieu reste ouvert pour l'introduction d'un élément de clôture en maçonnerie (4). Les éléments à section ouverte sur un côté comportent des bords rabattus déterminant une glissière sur la face latérale du pieu, à proximité de l'élément transversal, ladite glissière permettant de recevoir le bord d'extrémité d'un élément de clôture en maçonnerie, lesdits éléments de clôture en maçonnerie étant bloqués pour ne subir aucun mouvement relatif.
PCT/AU1995/000365 1994-06-24 1995-06-21 Systeme de cloture en maçonnerie prefabriquee WO1996000338A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU27078/95A AU684643B2 (en) 1994-06-24 1995-06-21 Prefabricated masonry fencing system
JP8502644A JPH09507887A (ja) 1994-06-24 1995-06-21 プレハブ組積造フェンス・システム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPM6473A AUPM647394A0 (en) 1994-06-24 1994-06-24 Prefabricated masonry fencing system
AUPM6473 1994-06-24

Publications (1)

Publication Number Publication Date
WO1996000338A1 true WO1996000338A1 (fr) 1996-01-04

Family

ID=3781042

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1995/000365 WO1996000338A1 (fr) 1994-06-24 1995-06-21 Systeme de cloture en maçonnerie prefabriquee

Country Status (3)

Country Link
JP (1) JPH09507887A (fr)
AU (1) AUPM647394A0 (fr)
WO (1) WO1996000338A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1008707A2 (fr) * 1998-12-12 2000-06-14 Anthony Joseph Booth Poteau de clôture
US6557830B2 (en) 2000-03-17 2003-05-06 Michael J. Sutter Prefabricated masonry fence system and method for constructing same
NL1023729C2 (nl) * 2003-06-24 2004-12-28 Axedex Special Products B V Afscheiding.
EP2331277A1 (fr) * 2008-09-02 2011-06-15 Amonix, Inc. Structure de poutre légère, hautement rigide

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2247562A (en) * 1962-10-19 1964-04-23 LOUIS THEODORE LEMAITRE aid JAN GERARD GUILLAUME KOOYMAN Belga
GB1544922A (en) * 1975-11-13 1979-04-25 Pamesa Ets Surround for retaining heaped materials
US4193584A (en) * 1978-08-02 1980-03-18 Wieser's Concrete Products, Inc. Livestock fence
US4369953A (en) * 1980-12-03 1983-01-25 Greiner Waldemar H Fence constructions and in fence elements therefor
GB2139666A (en) * 1983-05-10 1984-11-14 Alan Johnson Supporting posts
DE3524346A1 (de) * 1985-07-08 1987-01-08 Fielitz Eberhard E Dipl Volksw Leichtbauprofil
AU6602686A (en) * 1985-12-05 1987-06-11 Hunter Douglas Ltd. Hollow structural beam with enlarged ends
AU1776092A (en) * 1991-05-28 1993-01-08 John Vincent Moore (Consulting Engineers) Pty Ltd Steel beam and method of fabrication
GB2259924A (en) * 1991-09-18 1993-03-31 Douglas Gordon Dunkley "Fencing"

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2247562A (en) * 1962-10-19 1964-04-23 LOUIS THEODORE LEMAITRE aid JAN GERARD GUILLAUME KOOYMAN Belga
GB1544922A (en) * 1975-11-13 1979-04-25 Pamesa Ets Surround for retaining heaped materials
US4193584A (en) * 1978-08-02 1980-03-18 Wieser's Concrete Products, Inc. Livestock fence
US4369953A (en) * 1980-12-03 1983-01-25 Greiner Waldemar H Fence constructions and in fence elements therefor
GB2139666A (en) * 1983-05-10 1984-11-14 Alan Johnson Supporting posts
DE3524346A1 (de) * 1985-07-08 1987-01-08 Fielitz Eberhard E Dipl Volksw Leichtbauprofil
AU6602686A (en) * 1985-12-05 1987-06-11 Hunter Douglas Ltd. Hollow structural beam with enlarged ends
AU1776092A (en) * 1991-05-28 1993-01-08 John Vincent Moore (Consulting Engineers) Pty Ltd Steel beam and method of fabrication
GB2259924A (en) * 1991-09-18 1993-03-31 Douglas Gordon Dunkley "Fencing"

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1008707A2 (fr) * 1998-12-12 2000-06-14 Anthony Joseph Booth Poteau de clôture
EP1008707A3 (fr) * 1998-12-12 2002-01-30 Anthony Joseph Booth Poteau de clôture
GB2344603B (en) * 1998-12-12 2003-01-22 Anthony Joseph Booth Improvements in or relating to fencing posts
US6557830B2 (en) 2000-03-17 2003-05-06 Michael J. Sutter Prefabricated masonry fence system and method for constructing same
NL1023729C2 (nl) * 2003-06-24 2004-12-28 Axedex Special Products B V Afscheiding.
EP2331277A1 (fr) * 2008-09-02 2011-06-15 Amonix, Inc. Structure de poutre légère, hautement rigide
EP2331277A4 (fr) * 2008-09-02 2011-11-16 Amonix Inc Structure de poutre légère, hautement rigide

Also Published As

Publication number Publication date
JPH09507887A (ja) 1997-08-12
AUPM647394A0 (en) 1994-07-21

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