Platforms for Erection/Climbing
Transcription
Platforms for Erection/Climbing
Is EN 14439 suitable as a tower crane standard for global application? Safety Advantages of global dialogue for safer operations. Presented by Brent Stacey My Role • Liaison Officer – Victorian Crane Association • Position funded by Incolink • Safety based role • Member of Tower Crane Consultative Committee • Previously worked as a Rigger & Crane Operator Operating Favco 350, Gold Coast, 2000 Australian Standards • Tower Crane use in Australia is primarily governed by two standards: • AS 1418 covers Crane Design parameters • AS 2550 covers Safe Use of Cranes • Historically the market has been dominated by diesel powered luffing cranes manufactured by Favco Favelle Favco Australian Standards Favco Cranes in the 1960s Tower Cranes in Melbourne, 2005 Australian Made Tower Cranes • Favelle Favco are now a global crane company • 1st major international project - 1968 • Eight Favco STD 2700s on World Trade Centre • Since become the dominant crane brand on the worlds highest of applications • The highest tower crane used to date worldwide is the Favelle M440D on Burj Khalifa at 820m. Favco STD 2700, World Trade Centre, NYC Favelle Favco Recovery Crane Burj Khalifa, Dubai EN 14439 Compliant Favelle Favcos London 2010 Industry Changes • Times are changing in the crane landscape in Australia • More European tower cranes in use than ever before • Wide range of manufacturers represented • Entry of Chinese manufactured tower cranes Potain Cranes in Western Australia Perth 2009 Comansa Crane in Victoria Melbourne 2008 Potain MD 2200 Victoria Melbourne 2008 Global Standardisation • Why would Global Standardisation of requirements be an advantage? • Cranes could be shipped from factory to anywhere • Modifications for local conditions eliminated • Crane Owners and Hirers would have exposure to larger potential rental markets Example of World Cranes Wolff Headquarters Heilbronn, Germany Wolff 355B Australia European Standards (EN) • Europe leads the way with co-operation of standards/norms • Open borders, improvements in modular components, better transportability design • EN 14439 was required for Europe • Hard work of many resulted in a great document Europe: Barrier Free Zone for Tower Cranes Global Differences in Heavy Wind Events • European high readings of • 285 km/h – Wiebke, Switzerland • 277 km/h – Cairngorm, Scotland • Australian high reading of • 408 km/h – Olivia, Western Australia • Unique situations of weather in different locations make application of one standard difficult European Wind Zones Zone C 50 ≤ 180 km/h Zone D 50 ≤ 210 km/h Zone E 50 ≤ 235 km/h Zone F > 235 km/h Zone C is the minimum figure applied Australian Wind Zones Region A1-A5 ≤ 147.6 km/h Region B 147.7 to 172.8 km/h Region C 172.9 to 212.4 km/h Region D 212.5 to 262.8 km/h Australia’s Coastal Population • Europe’s population evenly spread across landmass • 90% of Australians live within 120km of the coast • Cyclone Tracy (1974) • Destroyed over 70% of Darwin • Resulted in 65 deaths • Favco ram luffing tower crane rode out cyclonic winds of more than 300 km/h Favco 250 Survivor of Cyclone Tracy 1974 Applying a Global Standard • Different conditions of wind exist globally • Further dialogue required for comparisons • Is the three second gust speed universally relevant? • Difference between crane foundations • Is Boom Float an issue that requires more thought? Positive Points of EN 14439 for World Use • Operator Comfort • Platforms for erection/climbing • Anemometers required above 30m height • Ability for Anti Collision systems to be fitted Platforms for Erection/Climbing Installing deck on Favco 1500, Melbourne, 1987. Platforms for Erection/Climbing Reeving Bridle on Favco 1500, No fall protection. Platforms for Erection/Climbing Just plain crazy! Riding the hook was standard practice. Platforms for Erection/Climbing Correct use of Lanyards for boom slinging. Platforms for Erection/Climbing A Frame access caged. Boom platform & handrail. EN 14439 Examples • Anemometer fitted to cranes higher than 30m • Currently only recommended in Australian Standards • Climatic control to bring temperature to 18 ° C within 30 minutes EN 14439. Pathway to a Global Solution? • EN 14439 is a wonderful example of co-operation across the European tower crane industry • A world standard taking into account local conditions may be a future project • Needs input from each global region • Is the tower crane conference in London next May the perfect opportunity to further discussions? Global Training and Certicification • How can programs already in place assist greater levels of safety? • Training of erectors/riggers should be universally compatible if the cranes are all the same • Victoria started a scheme almost 10 years ago after a fatality during a crane climb Correct Rigging Gear Must be Used Are FSWR Slings the Best Option? Incorrect Climbing Procedure …can mean disaster The Results Can Be Fatal Safety and Procedure • Erection design must be sound. • Cranes must not be overloaded. Favelle M310D … showing travelling counterweights. Preventable Incidents • In 2001, a preventable death in our local industry occurred whilst a crane was being jumped • 20t of travelling counterweights fell onto a hoist • It was an incident with no prior occurrence • Wind conditions and Lack of Supervision were found to be contributing factors • Three charges and large fines were laid M310D with Missing Counterweights Counterweight Incident Counterweights fell from a crane onto an Alimak lift car. Counterweight Incident The result of the 20t of falling counterweights was catastrophic. Incident Fallout • Following the incident, four immediate changes to crane jumping procedures were regulated • More changes were made as the cause was discovered in more detail • Changes to the counterweight securing devices were made • All Crane erectors/riggers to be deemed competent to carry out their work Competency Certification • A wide ranging Industry group was established to develop a certification program • It’s working title is “The Gold Card” Scheme • Covers a range of cranes used in Victoria • Has separate categories for erection and jumping Competency Certification Criteria • All persons working on Tower Crane erections or climbs/jumps must now be a Gold Card holder or trainee • Competency is measurable and verifiable • Consists of practical and theoretical knowledge • Prior knowledge and experience is recognised • Is assessed by an independent third party Gold Card Minimum Requirements • Minimum levels of experience before any trainee commencement • General Industry Induction – Red Card • Intermediate Riggers Licence for > 12 months • Successful Completion of Height Safety Awareness course that covers all aspects of body harness use Red Card Riggers & Crane Licence Height Safety Awareness Certificate. Accreditation Requirements • Trainees keep a log book that is signed off by an authorised Gold Card holder • Recognition of prior learning exists and is catered for by the program • Minimum manning levels exist for certain procedures • Trainee must be fully supervised Gold Card Advantages of the Gold Scheme • The Gold Card Scheme works • It is now culturally accepted as the Norm • Administered by industry, to industry • Satisfies Regulatory bodies and Unions as being a verifiable way of knowing that crane erectors/riggers know what they are doing • Keeps “Cowboys” out of the industry Operational Safety Zones (OSZ) • Site Specific • Excludes non required personnel from areas where rigging or climbing is being undertaken • Examples • 12m for a climb • 20m for crane erection • Boom length for installation/removal Examples of OSZs 56m OSZ for boom installation 20m OSZ for crane erection Success of an OSZ … during commissioning incident. CraneSafe Safety Improvement Program • The CraneSafe program now covers tower cranes • Has been hugely successful in mobile crane sector • Volunteer program becoming more widespread to meet third party inspection regulations in Australia Cranes Must Be Maintained …for continued safe use. Successful Safety Initiative Sharing Globally Successful Safety initiatives should be shared. From; • Design to purchase • Erection to commissioning • Climbing to dismantling • Inspection & maintenance to re-erection The Australian Crane Industry groups welcome further discussion and advances Questions & Closing Question Time Thank you