Download - Articulated Walling
TE
CH
NIC
AL
no
te
DOMING CAUSED BY SWELLING OF REACTIVE SOILS
Joint width as constructed
Joint width INCREASES at top of wall
DISHING CAUSED BY SHRINKAGE OF REACTIVE SOILS
Joint width as constructed
Joint width DECREASES at top of wall
Damp-proof course (DPC)
Articulation joint may commence above DPC if close to footing
! 4.5 mfrom corner
! 6.0 m(no openings)
! 4.5 mfrom corner
! 4.5 mfrom corner
! 4.5 mfrom corner
! 4.5 mfrom corner
! 4.5 mfrom corner
! 5.0 m(openings > 900 x 900)
! 4.5 mfrom corner
Family room
Loungeroom
Bed room Bed room
Dinningroom
Kitchen Laundry Bath Bed room
Articulation joints
Sealed articulationjoint between single-and two-storey wall
Open articulationjoint between masonryfence and house
If length greater thanspacing in Table 2,provide articulation joints
Spacingfrom Table 2 orto suit footing design
Articulation joint
If masonry extendsover openings, seeFigures 9 or 11
! 4.5 mfrom corner
Articulation joint
Clad frameinfill panel
Maximum spacingfrom Table 2
Spacing, see Section 5
Articulation joint
If > 1800 mm wide,consider providingarticulation jointsboth sides of window
Maximum spacing from Table 2
Spacing, see Section 5
Articulation joint
Figure 11
Figure 10 Alternative Figures 12,13
If > 1800 mm wide, consider providing articulation joints both sides of window
Spacing, see Section 5 Maximum spacing from Table 2
Articulation joint
Articulation joint
Joint extends through window sill
Figure 10 Alternative Figures 12,13
If > 1800 mm wide, consider providing articulation joints both sides of window
Spacing, see Section 5 Maximum spacingfrom Table 2
Articulation joint
Min. 600
If > 1800 mm wide,consider providingarticulation jointsboth sides of window
Steel lintel withvertical legin cavity
Window/door frame
Articulation joint
Articulation joint
Slip joint below steel lintel(eg, two layers of DPC)
Slip joint (eg, two layers ofDPC or compressible materialused in articulation joint) Articulation joint
Window frame
Window sill
Articulation joint
Steel lintel withvertical legin cavity
Window/door frame
Articulation joint
Articulation joint
Slip joint above and belowsteel lintel (eg, two layersof DPC) Provide sealantalong front of lintel
Compressible material at end of lintel to allowmovement (width to match articulation joint)
Steel lintel withvertical legin cavity
Window/door frame
Articulation joint
Articulation joint
Slip joint below steel lintel(eg, two layers of DPC)
Expansion materialat end of steel lintel(width to matcharticulation joint)
Slip joint (eg, two layers of DPCor compressible material usedin articulation joint)
Elastomeric sealant
Service run in chase(eg, insulatedhot-water pipe)
Articulation joint
Elastomeric sealant
Compressible fillerD
d*
* If depth of chase > 0.25D an articulation joint is required
Render terminated in renderstarter or expansion joint trim
Articulation joint
Clay brickwork
Articulation joint Articulation joint
Concrete or sand/lime brickwork Concrete blockwork
Articulation jointwith sliding ties
Return wallrequired forlateral restraint
Return wall requiredfor lateral restraint
300max.
Articulation joint Articulation joint
INCORRECT CORRECT CORRECT
Gap formed bytemporary filler
Masonry expansion(sliding/extendable) tie
Elastomeric sealant10
10minimum
Backer rod*
* Open-cell polyurethane or closed-cell polyethylene to ensure proper sealant dimensions
Articulation joint
Compressible foam orpolystyrene filler builtin by bricklayer
Elastomeric sealant
Articulation joint Articulation joint
Face of lintel may be sealed
Morethan 1800
! 4.5 mfrom corner but if! 2.0 m, joint willbe of little benefit
Articulationjoints
Note:Various tie typesavailable Masonry expansion tie
screwed to window frameArchitrave conceals joint on inside
Cover moulding concealsarticulation joint on outside
Window/door frame
Gap
Articulation jointIncreased riskof zig-zag cracking ifwidth between openingsis less than 1200 mm
1200 min.recommended
Eaves lining above externalwall and window/door heads
External masonry wallstops under eaves lining
Horizontal eaves lining
External wall supports roof structure
Alternative rakedeaves lining
Eaves support framing, fixed to roofframing and not masonry wall
Optional cover moulding fixedto supporting timber forhorizontal eaves or rafter/top plate for raked eaves
Full-heightdoor andfull-height frame
Infillpanel
Articulation joint(If arch bar used, seeFigures 10 and 12for details)
Articulation joint Articulation joint
Standard-heightdoor andfull-height frame
Standard-heightdoor andstandard metal frame
Maximum spacing from Table 2
Articulation joint locatedaway from mid-point ofgable, where maximummovement occurs
Infill panel
Articulation joint
Keep distance between articulation joints to a minimum (5 m maximum)
Articulation joint Provide bed-joint reinforcement over arch
Potential crack at crown of arch (weakest point)
Spring line
Arch height
Arch depth (300 mm minimum)
Arch span Buttress width*
Buttress width designed to resisthorizontal force from arch andoverturning
*
Arch rise (0.25 x span minimum)
(a) PERIMETER WALL WITH FRAMED OR TRUSSED ROOF (Internal wall with framed roof similar detail)
(b) INTERNAL WALL WITH TRUSSED ROOF
Cornice fixed to roof framing onlyallowing movement of masonry wall
Cornice fixed to rooftruss only allowingmovement ofmasonry wall
Bottom chord of roof truss
Gap sufficientto allow forexpected movement
(a) PERIMETER WALL WITH FRAMED OR TRUSSED ROOF (Internal wall with framed roof similar detail)
(b) INTERNAL WALL WITH TRUSSED ROOF
Cornice fixed to roof framing onlyallowing movement of masonry wall
Cornice fixed to rooftruss only allowingmovement ofmasonry wall
Bottom chord of roof truss
Gap sufficientto allow forexpected movement
Articulation joint
Bed-jointreinforcement
Extendreinforcement 600 mmminimum past openings
Articulation joint
Articulation joint withgunned-in elastomericsealant
Bars in reinforced concretebond beam stoppedat articulation joint
Dowel bars, with cap at one end, threaded through compressiblefiller and placed in bond beam at articulation joint.Bars must be horizontal and parallel
CCAA OFFICES
SYDNEY OFFICE:Level 6, 504 Pacific Highway St Leonards NSW Australia 2065 POSTAL ADDRESS: Locked Bag 2010 St Leonards NSW 1590TELEPHONE: (61 2) 9437 9711 FACSIMILE: (61 2) 9437 9470
BRISBANE OFFICE: Level 14, IBM Building 348 Edward Street Brisbane QLD 4000TELEPHONE: (61 7) 3831 3288FACSIMILE: (61 7) 3839 6005
MELBOURNE OFFICE:2nd Floor, 1 Hobson Street South Yarra VIC 3141 TELEPHONE: (61 3) 9825 0200FACSIMILE: (61 3) 9825 0222
PERTH OFFICE:45 Ventnor Avenue West Perth WA 6005 TELEPHONE: (61 8) 9389 4452FACSIMILE: (61 8) 9389 4451
ADELAIDE OFFICE:Greenhill Executive Suites 213 Greenhill RoadEastwood SA 5063 POSTAL ADDRESS:PO Box 229 Fullarton SA 5063TELEPHONE: (61 8) 8274 3758FACSIMILE: (61 8) 8373 7210
EXTRACTIVE INDUSTRIES OFFICEPO Box 243Henley Beach SA 5022TELEPHONE: (61 8) 8243 2505FACSIMILE: (61 8) 8125 5822
TASMANIAN OFFICE: PO Box 246Sheffield TAS 7306TELEPHONE: (61 3) 6491 2529FACSIMILE: (61 3) 6491 2529
WEBSITE: www.concrete.net.au
EMAIL: [email protected]
LAYOUT: Helen Rix Design
Disclaimer: Cement Concrete & Aggregates Australia is a not for profit organisation sponsored by the cement, concrete and aggregate industries in Australia to provide information on the many uses of cement, concrete and aggregates. This publication is produced by CCAA for that purpose. Since the information provided is intended for general guidance only and in no way replaces the services of professional consultants on particular projects, no legal liability can be accepted by CCAA for its use.
CCAA respects your privacy. Your details have been collected to provide you with information on our activities, publications and services. From time to time your details may be made available to third party organisations who comply with the Privacy Act such as affiliated associations, sponsors of events and other reputable organisations whose services we think you may find of interest. If you do not wish to receive information from CCAA or wish to be taken off the database please write to the Privacy Officer, CCAA, Locked Bag 2010, St Leonards, NSW, 1590