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WO1992002694A1 - Joints de construction - Google Patents

Joints de construction Download PDF

Info

Publication number
WO1992002694A1
WO1992002694A1 PCT/GB1991/001347 GB9101347W WO9202694A1 WO 1992002694 A1 WO1992002694 A1 WO 1992002694A1 GB 9101347 W GB9101347 W GB 9101347W WO 9202694 A1 WO9202694 A1 WO 9202694A1
Authority
WO
WIPO (PCT)
Prior art keywords
anchor plate
ties
wall
channel
plate
Prior art date
Application number
PCT/GB1991/001347
Other languages
English (en)
Inventor
Andrew Barker
John Kenneth Young
Original Assignee
Andrew Barker
John Kenneth Young
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 Andrew Barker, John Kenneth Young filed Critical Andrew Barker
Publication of WO1992002694A1 publication Critical patent/WO1992002694A1/fr
Priority to GB9302423A priority Critical patent/GB2262951B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • E04B1/4178—Masonry wall ties

Definitions

  • the present invention relates to construction joints for accommodating longitudinal movements of brick or block walls, such as, longitudinal shrinkage movement of a masonry wall and, more particularly, to devices for use in installing such construction joints at predetermined posi ⁇ tions along the run of a wall or between structural columns or other existing structures and the adjacent ends of brick or block walls.
  • the present invention consists in a device for use in installing a construction joint in a brick or block wall, comprising an anchor plate of strip ⁇ like configuration for locating in an upright position between an end of a first wall, a structural column or an existing structure and an adjacent wall end, means for securing one side of the anchor plate to the end of the first wall portion or the column or existing structure, and ties projecting from the opposite side of the anchor plate at intervals therealong for embedding in the jointing material between adjacent courses of the adjacent wall end, said ties comprising flat tongues which permit relative longitudinal movement of the. adjacent wall whilst affording lateral stability to the adjacent wall.
  • the anchor plate may be manufactured in various widths to suit different block thicknesses and the invention substantially simplifies the formation of a construction joint and ensures correct construction there ⁇ of.
  • the means for fastening the one side of the anchor plate to the structure may comprise holes and fastening elements for fixing the anchor plate to the existing structure.
  • Special cleats may be provided for use with the fastening elements where the anchor plate has a profiled cross section, as described in more detail below.
  • the means for fastening the one side of the anchor plate to the first wall may also comprise ties projecting from said one side of the plate at inter ⁇ vals therealong for embedding in the jointing material between adjacent courses of the first wall, these ties comprising tongues which are perforated or otherwise suit ⁇ ably profiled or deformed so as to key into the mortar or jointing material between the courses and resist movement of the anchor plate relative to the first wall.
  • the type of tie on one side of the anchor plate affords a mortar fix whilst the type of tie on the opposite side, that is, the contraction side, is flat or smooth and unper- forated or otherwise undeformed so as to allow for longitu ⁇ dinal movement.
  • the two types of tie are arranged in an alternate array on opposite sides of the anchor plate and are embedded in the jointing material between adjacent courses as a wall is being built.
  • the ties are formed as separate ties and are assembled to +-he anchor plate at required ones of a plurality of predett .ined mounting positions formed at intervals, preferably, regular intervals, along the length of the anchor plate. This arrangement enables the ties to be assembled to suit brick or block coursing with generous tolerances.
  • the mounting positions may be defined by sockets formed on the anchor plate for receiving cooperating insert means at the adjacent ends of the ties.
  • These sockets may be constructed by deforming material portions from the material of the anchor plate so as to form slot-like receptacles in conjunction with adjacent portions of the plate.
  • Each tie is formed from sheet material and has a flange portion at its inner end projecting generally at right angles to the tongue of the tie for engaging in a selected receptacle or socket.
  • the sockets may be formed down one side of the anchor plate and openings may be formed through the anchor plate above each socket so as to permit the sockets to be accessed by ties projecting from the opposite side of the anchor plate.
  • the ties may be integral with the anchor plate and be formed from material deformed from the material of the anchor plate.
  • the anchor plate may have a profiled cross section which defines the required thickness of the finished con ⁇ struction joint.
  • the plate may be formed with a central longitudinal channel or trough, and when incorpo ⁇ rated in a construction joint, the longitudinal flanges on opposite sides of the channel may be arranged to abut the end of the first wall or other structure, whilst the adjacent wall end is built in abutting relation with the bottom of the channel at the opposite side of the plate.
  • the channel may be of rectangular cross section and the sockets for attachment of the separate ties may be disposed on the inside of the bottom of the channel.
  • the channel may be of dovetail cross section, whereupon the ties may be attached to the anchor plate utilising the dovetail cross section of the channel.
  • the ties to be attached to the channel side of the plate may have dovetail end portions for engaging with the channel whilst the ties for attachment to the opposite side of the plate may have right angled flange portions at their inner ends which engage with the inside of the bottom of the channel through openings in the channel bottom.
  • the profiled anchor plate may be produced with a profile which provides an integral plaster stop, eliminating the need to fix at least one of the plaster stops at a later date.
  • One side of the plaster stop may be perforated to ensure adhesion of plas ⁇ ter, whilst the movement face remains flat to ensure a straight break at that point.
  • a compressible firestop material such as, mineral fibre or foam faced with a flexible intumescent material can Jbe applied to one side of the anchor plate during manufacture.
  • strips of fibreboard may suf ⁇ fice, also fixed during manufacture.
  • strips for example, made from firestop or other filler materials, may be attached to one or both longitudinal side flanges of a profiled anchor plate to provide fire resistance to a joint. Such strips are compressed during construction of a joint and expand and reform to allow for movement. The strips also provide a back stop for the application of mastic finishes, if re ⁇ quired. They may overhang the edges of the longitudinal flanges or be flush with those edges.
  • the longitudinal flanges of the anchor plate may be perforated to allow for expansion of intumescent firestop materials in the event of fire.
  • the invention may also be used for installing a horizontal construction joint between the top edge of a brick or block wall and ceiling or floor slabs above the wall.
  • the invention con ⁇ sists in a device for use in installing such a horizontal construction joint, comprising an anchor plate for securing to a ceiling or floor slab substantially parallel to the length direction of the wall,.means for fastening one side of the anchor plate to the slab, and separate ties project ⁇ ing from the opposite side of the plate at intervals there ⁇ along for embedding in jointing material between adjacent bricks or blocks at the top edge of the wall, said separate ties comprising flat tongues connectable to the anchor plate by means accommodating longitudinal movement of the wall relatively to the anchor plate.
  • the means permitting such movement may comprise either socket connections or dovetail connecting arrangements, as described above.
  • Figure 1 is a fragmentary perspective view illus ⁇ trating a first embodiment of the invention
  • Figure 2 is a cross section on the line II-II of Figure 1
  • Figure 3 is a perspective view illustrating the formation of a construction joint utilising the first embodiment of the invention
  • Figure 4 is a fragmentary perspective view illus ⁇ trating a second embodiment of the invention.
  • Figure 5 is a cross section on the line V-V of Figure 4,
  • Figure 6 is a perspective view of a cleat for fastening the second embodiment to an existing structure
  • Figure 7 is a fragmentary perspective view illus ⁇ trating a third embodiment of the invention.
  • Figure 8 is a cross section on the line VIII-VIII of Figure 7,
  • Figure 9 is a fragmentary perspective view illus ⁇ trating a fourth embodiment of the invention.
  • Figure 10 is a cross section on the line X-X of Figure 9.
  • this first embodiment of device comprises an anchor plate 1 made from metal strip and a plurality of separate ties 2,3.
  • the plate and ties may, for example, be pressed from powder coated galvanised steel or stainless steel sheet approximately 1mm-2mm thick.
  • the ties 2 (only one is shown) fitted to one side of the anchor plate, that is, the fixed side, comprise tongues 4 which project substantially perpendicularly from the plate and key with the mortar or other jointing material between adjacent course of bricks or blocks and provide fixity to this side of a joint and move with the wall.
  • the ties 3 (only one is shown) fitted to the opposite or expansion side of the anchor plate comprise smooth or flat tongues 5 which project substantially perpendicularly from the plate to embed in the jointing material between adjacent courses and permit relative longitudinal movement between the tongues and the adjacent wall and allow the joint to open with contraction of the wall.
  • sockets 6 are formed by deforming the materi ⁇ al of the plate upwardly from the plate by pressing or stamping to produce pairs of opposed ears 7 integral with the plate at their outside ends and having portions pro ⁇ jecting inwardly towards one another substantially parallel to, but spaced a small distance from the plane of the plate, whereby to form a slot-like receptacle in conjunc ⁇ tion with adjacent portions of the plate. Rectangular openings 8 are formed in the anchor plate between these receptacles and sockets 6.
  • Each tie 2,3 is of strip-like configuration and is stamped from metal sheet material. It comprises a tongue 4,5 having a flange portion 9 at its inner end bent sub ⁇ stantially at right angles to the tongue.
  • the tongues 4,5 are approximately 155mm long and the flange portions 9 are approximately 50mm long.
  • the tongues 5 of the ties 3 to be fitted to the expansion side of the plate are completely smooth and unperforated, whilst the tongues 4 of the ties 2 are suitably deformed or profiled, in this case, with perforations 10, to provide the required keying characteristics.
  • the ties 3 on the expansion side are connected to the anchor plate by simply sliding the flange portions 9 downwardly into the sockets 6 formed on that side of the plate.
  • the inner ends of the projecting tongues 5 abut the upper edges of the cooperating ears 7 to limit downward movement of the ties.
  • the ties 2 on the fixed side of the anchor plate are attached by inserting the flange portions 9 through the rectangular openings 8 immediately above the required sockets on the expansion side and then sliding the flange portions 9 downwardly into the sockets. In this case, downward movement of the ties is limited by the inner ends of the tongues 4 abutting the bottom edges of the associated rectangular openings 8.
  • Longitudinal beads 11 are pressed into the anchor plate along opposite sides of the central portion contain ⁇ ing the sockets 6 and strips 12 of compressible filler or firestop material are bonded to each flange portion 13 on the outsides of the location beads 11.
  • these strips 12 may be formed from foam plastics material sand ⁇ wiched between skins of flexible intumescent material.
  • the flange portions 13 are formed with perforations 14 to allow for expansion of the intumescent material in the event of fire.
  • Figure 3 illustrates the device of Figures 1 and 2 used in the formation of a vertical construction joint 15 along the run of a wall 16 constructed from masonry blocks 17 so as to accommodate longitudinal shrinkage movement of the wall.
  • An anchor plate 1 is disposed in a vertical position between the mutually adjacent ends of the two parts of the wall and as the wall is constructed, the ties 2,3 are attached to the anchor plate alternately on oppo ⁇ site sides of the plate so as to project into and be embed ⁇ ded in the mortar between adjacent courses.
  • the array of sockets 6 and their arrangement allows generous tolerances.
  • the perforated ties 2 are all fitted to the fixed side of the joint so as to key the anchor plate 1 to the wall at that side of the joint and provide fixity with the mortar bedding between the masonry blocks 17.
  • the ties 3 with the smooth tongues 5 are fitted to the opposite or expansion side of the joint to permit longitudinal shrinkage of the wall on that side whilst providing it with lateral stabili ⁇ ty.
  • the building blocks 17 on the fixed side of the joint are butted against the anchor plate 1, whilst on the expansion side the blocks 17 are butted against the filler strips 12 so as to compress the latter and enable them to expand again and maintain the joint closed, when the wall shrinks.
  • the anchor plate 1 is formed in a relatively short section, for example, just over one metre in length, and two or more anchor plates 1 may simply be butted together, end to end, to accommodate construction joints in walls of greater height than an individual plate.
  • Fixing holes 19 are provided along the length of the anchor plate for use when the plate is to be used for the formation of a construction joint between an existing structure, such as a column, and an adjacent wall.
  • the perforated ties are not used and the plate is fastened with its fixed side against the face of the exist ⁇ ing structure which is drilled and plugged to receive fixing elements, such as, bolts, engaged through the holes 19.
  • the embodiment illustrated in Figures 4 and 5 has an anchor plate 21 formed with a profiled cross section defining the required thickness of the finished construc ⁇ tion joint.
  • the plate 21 has a central longi ⁇ tudinal channel 22 of rectangular cross section. This channel may, for example, have a depth of 10mm and serves as a stop during formation of a construction joint so as to define the required thickness for the finished joint.
  • the ties 2,3 used with this embodiment are identical to the ties used in the first embodiment and the sockets 23 for mounting the ties are formed on the inside of the bottom of the channel 22.
  • the sockets are of similar construction to those of the first embodiment and similarly to the latter, rectangular openings 24 are provided in the bottom of the channel intermediate the sockets 23 to enable the sockets to be accessed from opposite sides.
  • Compressible filler strips 12 are bonded to the longitudinal flange portions 25 on opposite sides of the channel 22 and these flange portions are perforated to allow for expansion of intumescent material of the filler strips in the event of fire.
  • Figures 4 and 5 may be used to form a vertical construction joint along the run of a brick or masonry wall in a similar manner to that described with reference to Figure 3.
  • the flange portions 25 of the anchor plate 21 are arranged to abut one side of the joint and the outside bottom wall of the channel 22 abuts the opposite side of the joint during the construction of the wall so as to determine the thickness of the joint.
  • the filler strips 12 are of greater thickness than the depth of the channel 22 so that they are compressed during construc ⁇ tion of the wall.
  • each cleat 26 has a hook portion 27 which hooks over the lower edge of a rectangular opening 24 in the channel bottom, and the main body 28 of the cleat is inserted in the socket and has an offset portion 29 which, when the cleat is positioned is substantially flush with the rear faces of the flange portions 25.
  • the offset portion has a hole 30 which, when the cleat is positioned may be accessed through an opening 24 so that the cleat can be fastened to the face of the existing structure, which is drilled and plugged,- by a bolt or other fixing element inserted through the hole 30 into the existing structure.
  • Figures 7 and 8 illustrate another embodiment comprising an anchor plate 31 of profiled cross section.
  • the plate has a central longitudinal channel 32 of dovetail cross section which not only serves to determine the thickness of the finished construction joint but also affords means for attaching the ties 3,33 to the anchor plate.
  • the ties 33 (only one is shown) on the fixed side of the anchor plate are formed from sheet material and comprise a perforated tongue 34 having a dovetail portion 35 at its inner end of complementary shape to the dovetail cross section of the channel 32.
  • the dovetail portion 35 is folded back underneath itself to strengthen the portion of the tie.
  • the tie is attached to the anchor plate by inclining it to the horizontal about its longitudinal axis so as to insert the dovetail portion 35 into the channel 32, whereupon the tie is twisted into its horizontal position thereby engaging the dovetail portion 35 with the channel.
  • the ties 33 are attachable to the channel 32 at any selected positions along the length of the anchor plate 31.
  • the ties 3 on the expansion side of the plate 31 are identical to the ties 3 of the preceding embodiments . They are attached to the anchor plate 31 b simply insert ⁇ ing the flange portion 9 through a selected one of a plu ⁇ rality of rectangular openings 36 formed at closely spaced regular intervals through the bottom of the channel 32 so as to engage the flange portion with the inside bottom of the channel.
  • the angled sides of the channel retain the flange portion located within the channel and the tongue projecting perpendicularly from the anchor plate, whilst the bottom horizontal edge of the associated opening 36 abuts the underneath of the tongue 5 to limit downward movement of the tie.
  • Figures 7 and 8 may be used to form a construction joint in a similar manner to that described with reference to the embodiment of Figures 4 and 5 and, when it is used in a construction joint adjoining an existing structure, it may be connected to the existing structure by a cleat similar to that illustrated in Figure
  • compressible filler ⁇ strips 12 are bonded to the flange portions 37 on opposite sides of the channel 32 and perforations 14 are formed in these flange portions to accommodate expansion of intumes ⁇ cent material used in the filler strips.
  • Figures 9 and 10 illustrate an embodiment of the invention in which the ties 42,43 are formed integrally with the anchor plate 41.
  • the anchor plate is of profiled section similar to the profile of the anchor plate 21 of Figures 4 and 5 and the ties 42,43 are formed from the bottom wall 44 of the central longitudinal channel 45 in the anchor plate by punching or stamping the material from the plate and bending it upwardly and out ⁇ wardly so as to produce ties in the form of tongues pro ⁇ jecting substantially perpendicularly and alternately from opposite sides of the plate.
  • the tongues are left inte ⁇ grally joined to the bottom of the channel at their inner ends.
  • the tongues 42,43 project alternately from opposite sides of the anchor plate at regular predetermined inter ⁇ vals along its length corresponding to, or in multiples " of, the normal vertical spacing between courses of standard size bricks or concrete or masonry building blocks.
  • the tongues 42 projecting towards the fixed side of the anchor plate are perforated as at 46 so as to provide for keying to the mortar or jointing material between the courses, whilst the ties 43 projecting to the opposite, expansion side of the plate are flat ties permitting for longitudinal movement of an associates wall relatively to the anchor plate.
  • strips 12 of firestop or filler material are bonded to the longitudinal flange portions 47 along opposite sides of the central channel 45 and these flanges may be perforated as at 14 to allow expansion of the intumescent material.
  • the embodiment of Figures 9 and 10 may be used to form a vertical construction joint in the run of a wall in a similar manner to the previous embodiments save that the ties 42,43 are already fixed in predetermined positions to the anchor plate 41.
  • the ties 42,43 having been stamped or punched from the material of the plate, may be left substantially flush with the bottom wall 44 of the channel 45 until required for use, whereupon they are bent into their projecting positions on opposite sides of the plate.
  • the outer ends of the ties may be raised a small distance above the bottom wall 45 of the channel to the appropriate side of the plate.
  • a non-profiled anchor plate similar to that illustrated in Figures 1 and 2 may be formed with integral ties at regular intervals along its length similarly to the embodiment of Figures 9 and 10 instead of having sockets 6 and openings 8 for the attach ⁇ ment of separate ties.
  • devices similar to those described with reference to Figures 1 to 8 may be used in the forma ⁇ tion of a horizontal construction joint between the top edge of a brick or block wall and concrete floor or ceiling slabs above the wall.
  • an anchor plate 1,21,31 is fastened to the slabs generally parallel to and above the length of wall by fastening elements disposed through the holes 19,30 in the plate 1 or special cleats 26, and ties 3 comprising the flat or smooth tongues 5 are arranged to project downwardly and be embedded in the mortar or jointing material between adja- cent bricks or- building blocks along the top edge of the wall.
  • the arrangements 6,23,32 for attaching these ties to the associated anchor plates permit relative longitudinal movement of the wall relatively to the ceiling or floor slabs whilst providing the wall with lateral stability.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Finishing Walls (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Building Environments (AREA)

Abstract

Un dispositif servant à former un joint de construction vertical dans un mur de briques ou de parpaings (16) comprend une plaque d'ancrage (1) constituée par une bande de matériau métallique et des tirants métalliques (2, 3) qui sont fixés sur les côtés opposés de la plaque d'ancrage pour former une saillie à partir de celle-ci et se noyer dans le mortier entre les assises contiguës des parties du mur situées sur les côtés opposés de la plaque d'ancrage. Les tirants (2) formant saillie sur l'un des côtés comportent des languettes perforées pour se caler dans le mortier et résister au déplacement de la plaque d'ancrage, et les tirants (3) situés sur le côté opposé possèdent des languettes plates permettant un déplacement longitudinal relatif de la partie contiguë du mur tout en assurant une stabilité latérale. Les tirants (2, 3) sont fixés à la plaque d'ancrage par l'intermédiaire de brides recourbées à angle droit vers les extrémités intérieures des languettes et pouvant s'introduire dans des logements ou des prises en forme de fente situés à intervalles réguliers le long d'une partie longitudinale centrale de la plaque d'ancrage. Des bandes de matériau de remplissage compressible (12) adhèrent aux brides longitudinales latérales de la plaque d'ancrage pour fermer le joint.
PCT/GB1991/001347 1990-08-07 1991-08-07 Joints de construction WO1992002694A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9302423A GB2262951B (en) 1990-08-07 1993-02-08 Construction joints

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9017301.4 1990-08-07
GB909017301A GB9017301D0 (en) 1990-08-07 1990-08-07 Construction joint former

Publications (1)

Publication Number Publication Date
WO1992002694A1 true WO1992002694A1 (fr) 1992-02-20

Family

ID=10680293

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1991/001347 WO1992002694A1 (fr) 1990-08-07 1991-08-07 Joints de construction

Country Status (2)

Country Link
GB (2) GB9017301D0 (fr)
WO (1) WO1992002694A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2267918B (en) * 1992-06-17 1995-12-20 Kalwinder Singh Sehmi A wall connector
CN102605876A (zh) * 2011-01-12 2012-07-25 林俊桢 砖墙结构
KR101978604B1 (ko) * 2018-07-30 2019-05-14 오정훈 건축용블록 조적가이드

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2278377B (en) * 1993-05-28 1996-07-31 Ancon Clark Ltd Restraining assembly for wall members

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR497330A (fr) * 1918-03-22 1919-12-03 Ralph Alfred Megenity Perfectionnements dans les constructions en béton
GB929291A (en) * 1960-03-18 1963-06-19 Alexander Feldmann Improvements in or relating to methods and means for securing anchoring ties in castmaterials
GB1575501A (en) * 1976-11-05 1980-09-24 Ellidge A Tie means for brick walls
GB2162217A (en) * 1984-07-11 1986-01-29 Cd Truline Ltd Wall ties
EP0199595A2 (fr) * 1985-04-23 1986-10-29 The Expanded Metal Company Limited Dispositif pour la construction d'un mur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR497330A (fr) * 1918-03-22 1919-12-03 Ralph Alfred Megenity Perfectionnements dans les constructions en béton
GB929291A (en) * 1960-03-18 1963-06-19 Alexander Feldmann Improvements in or relating to methods and means for securing anchoring ties in castmaterials
GB1575501A (en) * 1976-11-05 1980-09-24 Ellidge A Tie means for brick walls
GB2162217A (en) * 1984-07-11 1986-01-29 Cd Truline Ltd Wall ties
EP0199595A2 (fr) * 1985-04-23 1986-10-29 The Expanded Metal Company Limited Dispositif pour la construction d'un mur

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2267918B (en) * 1992-06-17 1995-12-20 Kalwinder Singh Sehmi A wall connector
CN102605876A (zh) * 2011-01-12 2012-07-25 林俊桢 砖墙结构
CN102605876B (zh) * 2011-01-12 2014-09-10 林俊桢 砖墙结构
KR101978604B1 (ko) * 2018-07-30 2019-05-14 오정훈 건축용블록 조적가이드

Also Published As

Publication number Publication date
GB9302423D0 (en) 1993-04-28
GB2262951B (en) 1994-06-01
GB9017301D0 (en) 1990-09-19
GB2262951A (en) 1993-07-07

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