WEDGE LOCK SYSTEM COFICO POLICY ON THE USE Reference: TCVN 6052 : 1995 – STEEL SCAFFOLDING TCXDVN 296 : 2004 – SCAFFOLDING, SAFETY REQUIREMENTS COFICO FALSEWORK SAFETY CHECKLIST COFICO Copyright © 2016 Revision 02, May 2016 OVERVIEW WEDGE PIN 6mm THK LEDGER Ø34 x 2.0mm C-COUPLER 6mm THK POST Ø48.3 x 3.0mm DIAGONAL BRACING Ø34 x 2.0mm WEDGE PIN 6mm THK ROTATED PIN C-COUPLER 6mm THK POST Ø48.3 x 3.0mm COFICO Copyright © 2016 Revision 02, May 2016 SYSTEM COMPONENT Item Size (mm) Surface Material Standard Post Ø 48.3 mm x 3.0 mm Hot dip galvanized CCT38, fy = 235 N/mm² Horizontal Ledger Ø 34 mm x 2.0 mm Hot dip galvanized CCT38, fy = 235 N/mm² Diagonal Bracing Ø 34 mm x 2.0 mm Hot dip galvanized CCT38, fy = 235 N/mm² U Jack & Base Jack Ø 38 mm Paint coating CCT38, fy = 235 N/mm² STANDARD POST COFICO Copyright © 2016 LEDGER DIAGONAL BRACE Revision 02, May 2016 RECOMMEND WORKING LOAD CAPACITY Working Load Capacity on Load Test = 39.0 kN Average Ultimated Load = 80.0 kN COFICO Copyright © 2016 Revision 02, May 2016 SAFE WORKING LOAD (SWL) F.O.S of 2.0 was applied to develop the safe working load And SWL is limited to = 39.0kN (*) COFICO Copyright © 2016 Revision 02, May 2016 BRACING & LEDGER ARRANGEMENT All vertical posts should be connected with ledger and bracing in 2-direction unless a detail design justification considered all adverse loading conditions, including wind load, member imperfection, out-of-plumbness and construction tolerance etc., submitted for review Falsework towers should be connected together to fulfill the height-width ratio of in Diagonal bracing should be provided in each direction (as below sketch) or in accordance with design drawings Bracing must be installed at each layer before proceeding to next lift height COFICO Copyright © 2016 Revision 02, May 2016 PARTICULAR ATTENTION Ensure the jack diameter, minimum 38mm hollow jack, is compatible with the system Do not mix up with the small diameter jack which is usually used in Toyo scaffolding, (typically 30mm) Jack extensions, both head jack and base jack, are limited to 400mm unless further justification by design Ensure the falsework system rests on solid ground or is supported on a foundation Ø 38mm Max 400 mm 600 mm 600 mm Max 400 mm COFICO Copyright © 2016 Revision 02, May 2016 OTHER ATTENTION When erect falsework, sub-contractors must follow approved shop drawing which issued for construction Scaffolding (including U jack and Base jack) before entering COFICO’s sites, subcontractors or suppliers must submit all documents as COFICO’s requirements: CO / CQ, Load Test Report of Quatest and other documents if any Ensure all the components of the system delivered on site is same as those specified in the catalogue And make sure the steel members (components) are in good conditions All scaffolding use at COFICO’s sites must be galvanized or synchronous colours Pay particular attention to the foundation design to support heavy scaffolding leg loads and ensure that the allowable bearing capacity of the ground is not exceeded Please also make reference to the COFICO Falsework Checklist COFICO Copyright © 2016 Revision 02, May 2016 ... sub-contractors must follow approved shop drawing which issued for construction Scaffolding (including U jack and Base jack) before entering COFICO’s sites, subcontractors or suppliers must submit... requirements: CO / CQ, Load Test Report of Quatest and other documents if any Ensure all the components of the system delivered on site is same as those specified in the catalogue And make sure... May 2016 PARTICULAR ATTENTION Ensure the jack diameter, minimum 38mm hollow jack, is compatible with the system Do not mix up with the small diameter jack which is usually used in Toyo scaffolding,