Conlift Edgelift Design Manual - Parchem

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N12 Shear Bar 50mm 12mm N Bar 250mm 90 degrees 250mm N16 Shear Bar 50mm 16mm N Bar 300mm 90 degrees 300mm Tension Bar 64 degrees 64 degrees 750mm N12 Bar 500mm 16mm N Bar 275mm 375mm 14
DESIGN CONSIDERATIONS FOR CONCRETE LIFTING SYSTEMS The design engineer must take into account all limit states and failure mechanisms. The following limit states are to be considered during the design process. Guidance and recommendatiions can be found in AS3600 (Concrete structures) and AS1170 (Structural Design Actions) • Anchor strength • Concrete strength • Combined anchor strength If a tension bar is to be installed with the anchor, their joint capacity must be considered. • Design for concrete strength • Serviceability • Anchor robustness and flexibility • Fatigue due to multiple lifting and corrosion Provided the Conlift anchor is showing no signs of corrosion or damage the are safe for multiple lifts. • Atmospheric Corrosion All Conlift Edgelift Amchors are galvanised (hot dipped) to ensure the are resistant to atmosphericcorrosion. Stainless steel anchors are available for more aggressive environments. The lifetime of Conlift galvanised anchor coatings depends upon the category as shown below. Atmospheric Corrosivity Zones ISO 9223:2012 and ISO 14713-1:2009 Description Typical Environment Corrosion rate for the first year of exposure (µm/y) Mild Steel Zinc 14 µm 100 g/m² Typical service life (years) Galvanizing thickness (µm) and coating mass (g/m²) 20 µm 140 g/m² 42 µm 300 g/m² 85 µm 600 g/m² 125 µm 900 g/m² C1 Very low Dry indoors ≤1.3 ≤0.1 100+ 100+ 100+ 100+ 100+ C2 Low Arid/Urban inland >1.3 to ≤25 >0.1 to ≤0.7 21- 100+ 36- 100+ 50- 100+ 100+ 100+ C3 Medium Coastal or industrial >25 to ≤50 >0.7 to ≤2.1 7-21 12-36 17-50 40- 100+ 60- 100+ C4 High Calm seashore >50 to ≤80 >2.1 to ≤4.2 4-7 6-12 8-17 20-40 30-60 C5 Very High Surf sea-shore >80 to ≤200 >4.2 to ≤8.4 2-4 3-6 4-8 10-20 15-30 CX Extreme Off-shore >200 to ≤700 >8.4 to ≤25 1-2 1-3 1-4 3-10 5-15 Reproduced with permission of the Galvanisers Association of Australia : www.GAA.com.au Note 1 This table is an extrapolation of well-established corrosion rates and is supported by case history evidence in Australia, where service life records of 50 years are common and up to 110 years are recorded. The corrosion rates are consistent with ISO 9223:2012 and ISO 14713-1:2009. Note 2 Because the actual galvanizing thickness applied is usually well above the specification minimum, the service lives quoted in rain exposed locations are likely to be conservative. In addition, ISO 9224:2012 applies lower corrosion rates for both steel and zinc where the object is exposed to long term steady state environmental conditions. Note 3 Sheltered and not rain-washed surfaces, in a marine atmospheric environment where chlorides are deposited, can experience a higher corrosivity category due to the presence of hygroscopic salts. Note 4 The coastal zone is defined as between 100 metres to 1 km inland from sheltered seas and between 1 km and 10 – 50 km from surf beaches depending upon prevailing winds and topography. Note 5 Measured corrosion rates for steel in selected locations in Australia are shown in AS 4312:2006. Note 6 Galvanizing thicknesses of 14 µm (100 g/m²) and 20 µm (140 g/m²) are typically applied by an in-line process. Note 7 A more complete description of each of the typical environments is available in ISO 9223:2012, ISO 14713- 1:2009, AS 4312:2006, and from the GAA. 15
Page 1 and 2: Edgelift Design Manual
Page 3 and 4: CONTENTS • INSTALATION OF CONLIF
Page 5 and 6: CLUTCHES LEDC25 LEDC57 LEDC10 Dimen
Page 8 and 9: RECESS FORMERS AND BACKING PLATE
Page 10 and 11: CONLIFT EA25 PLATE EDGELIFT ANCHOR
Page 12 and 13: CONLIFT EA57 PLATE EDGELIFT WITH TE
Page 16 and 17: Further Guidance Welding As welding
Page 18 and 19: Concrete Breakout Failure of anchor
Page 22: National Head Office 7 Lucca Road,

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