Cantilever Loading Platform Erection Procedures and Guidance Notes

Transcription

1 Cantilever Loading Platform Erection Procedures and Guidance Notes Please note this is a six page document. 1 Introduction 1 Issue Date: January 2007 It is essential that the procedures are read and fully understood prior to the use of the equipment. This guidance note is for the erection, use and dismantling of a Cantilever Loading platform. It is recommended that all site personnel / operatives using this equipment should first familiarise themselves with these procedures and guidance notes and shall be read in conjunction with CJ O Shea (Plant Hire) Ltd drawing(s). It is the customer s responsibility to assimilate this information into a document specific to site conditions. These procedures and guidance notes are not to be used as a working method statement. 2 Health and Safety This document does not remove the customer s responsibility to provide suitably trained and competent site personnel / operatives for the safe erection, dismantling and use of this equipment. Please refer to Appendix A on page three of this document. 3 Design Criteria 3.1 The cantilever loading platform has been designed for a safe working load (SWL) of 3000 kg. 3.2 The customer is responsible for ensuring the slabs situated above and below the platform, are capable of withstanding the applied loads shown on the CJ O Shea (Plant Hire) Ltd drawing(s). 3.3 CJ O Shea (Plant Hire) Ltd drawing(s) clearly show all design criteria. The customer is advised to approve of the drawing(s), prior to the delivery of equipment. Any discrepancies to be brought to the attention of CJ O Shea (Plant Hire) Ltd drawing office. 3.4 Any site amendments to be approved by CJ O Shea (Plant Hire) Ltd drawing office, prior to erecting / loading the equipment. 4 References Please refer to Appendix A on page three of this document. Additional method statements and contract drawings may be provided by the contractor. 5 Assembling the Platform Stage 1 At ground level, bolt 4 no. Titan props to top of beams using 4 no. M12 x 30 bolts per prop. Fix and pin Edge Protect posts to sockets and position Edge Protect panels

2 around platform, ensuring the retaining clips are correctly located over panels. Note: the end panel requires trimming to suit the platform profile and that the side panels are raised slightly to avoid the lifting brackets. Attach lead rope to channel at inside end of platform. Stage 2 Attach lifting chains to lifting brackets and ensure that chain angle is no flatter than 60. Ensure that Titan props are fully closed. Clear proposed position of gantry on floor and erect back propping under slab edge. Remove guard rail temporarily from the slab edge and re-erect on the slab, leaving room for the platform to land. All operatives working on the slab outside the temporary guard rail at slab level must wear harnesses attached to the building. Lift platform to slab level and by use of the lead rope, position it correctly before lowering it to touch the slab with the angle on the underside tight against the slab edge. See sketch Stage 2 on page five of this document. Note: CJ O Shea (Plant Hire) Ltd, does not supply chains, shackles, slings etc. Stage 3 Lower the platform to almost level and tighten up both rear Titan props against the slab soffit. See sketch Stage 3 on page five of this document. Stage 4 Further lower the platform until the chains are going slightly slack and tighten both the remaining two Titan props. At this point the platform may be entered to release the chains and re-position the side Edge Protect panels correctly. See sketch Stage 4 on page six of this document. Stage 5 Fix 4 no. M20 anchors into the slab, one at each of the 200 x 100 plates on the inside face of the main beams. Remove the channel at the rear of the platform and store safely for re-use. Complete slab edge guard rail to connect with sides of platform and remove internal temporary guard rail. Platform is now ready to use. See sketch Stage 5 on page six of this document. 6 Moving the Platform Stage A Clear platform of all loose material. Bolt channel to rear end of main beams. Erect temporary guard rail on slab around area of platform and remove edge guard rail adjacent to platform. From this point all operatives working on the slab outside the temporary guard rail at slab level must wear harnesses attached to the building. Remove 4 no. M20 bolts in slab. Stage B Adjust Edge Protect panels on side of platform to clear lifting points. Attach lifting chains to lifting brackets and ensure that chain angle is no flatter than 60. Stage C Release Titan props at slab edge end of platform and close fully. Take weight of platform on crane chains. 2

3 Stage D Working from outside the platform to prevent any chance of being knocked over by the platform moving, release remaining 2 Titan props and close completely. Stage E Lift platform away from slab, taking care to move out before lifting. Re-position on upper floor using sequence. 7 Dismantling the Platform Dismantle the platform in reverse sequence to the above assembly procedure. Clean and place the dismantled components in the supplied stillages, and return the equipment to CJ O Shea (Plant Hire) Ltd. Appendix A - References 1. Legislation The Work at Height Regulations 2005 Lifting Operations and Lifting Equipment Regulations 1998 Provision and Use of Work Equipment Regulations 1998 Personal Protective Equipment at Work Regulations 1992 Management of Health and Safety at Work Regulations 1999 Construction (Design and Management) Regulations 1994 (as amended) Construction (Health, Safety and Welfare) Regulations 1996 The Control of Noise at Work Regulations HSE Approved Codes of Practice and Guidance L22 Safe use of Work Equipment ACOP and Guidance L113 Safe use of Lifting Equipment ACOP and Guidance HS(G)150 Health and Safety in Construction HS(G)151 Protecting the Public Your Next Move CIS17 Construction Health and Safety Checklist (Rev.1996) CIS49 General Access Scaffolds and Ladders 1997 IND(G)220 A Guide to the Construction (Health, Safety and Welfare Regs. 1996) 3. Guidance Concrete Society: Formwork a Guide to Good Practice Construction Plant Hire Association (CPA): British Concrete Pumping Group: Concrete Pump Operators Safety Guide Code of Practice for the Safe Use of Concrete Pumps Construction Industry Research and Information Association: Report 108: Concrete Pressure on Formwork Timber Research and Development Association: Simplified rules for the Inspection of Second-hand Timber for Load Bearing Use Precast Concrete Frame Association: Code of Practice for the Safe erection of Precast Concrete Frameworks Concrete Structures Group: A guide to the safe transportation of formwork and falsework equipment 4. Standards BS 1129 Portable Timber Ladders, Steps, Trestles and Light-weight Stagings BS 2037 Aluminium Ladders Steps and Trestles BS 2482 Timber Scaffold Boards 3

4 BS 5531 Safety in Erecting Structural Frames BS 5975 Code of Practice for Falsework BS 6180 Protective Barriers in and about Buildings BS EN 131 Part 1 and 2: Ladders BS EN 361 Full Body Harness BS EN 1570 Safety Requirements for Lifting Tables BS EN 1263 Safety Nets BS EN Temporary Works Equipment BS EN :2003 Scaffolds Performance Requirements and General Design BS EN Falsework Performance Requirements and General Design BS EN 13374:2004 Temporary Edge Protection Systems Product Specification, Test Methods BS449 Use of Structural Steel in Buildings BS4074 Specifications for Metal Props and Struts BS4340 Glossary of Formwork Terms BS4978 Timber Grades for Structural Use BS5268 Structural use of Timber CP3 Loadings Wind Loadings CP110 Structural use of Concrete CP 118 The Structural Use of Aluminium 5. Manufactures Technical Data References should be made to the following Technical Data, available from CJ O Shea (Plant Hire) Ltd. Cantilever Loading Platform PLAN ON PLATFORM 4

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