Scaffold safe work method statement
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The document provides a safe work method statement for scaffolding work. It outlines control measures for working platforms, design criteria for erection platforms and temporary edge protection, and a generic work sequence for erecting and dismantling scaffolding. The sequence involves erecting each lift from a fully decked platform below, installing edge protection, and dismantling from the top down by progressively removing materials.
Scaffold safe work method statement
- 1. SCAFFOLD SAFE WORK METHOD STATEMENT PROJECT TITLE – ABC CADANGAN MEMBAIKPULIH 5 RUMAH KEDIA SEDIA ADA 2 TINGKAT NO 191, 193,195,197 & 199 ( FASA 1 ), MENDIRIKAN 1 BLOK BANGUNAN PEJABAT 23 TINGKAT ( FASA 2 ) YANG TERDIRI DARIPADA: LOBI & RUANG M&E,CAR PARK DAN TOWER 23 TINGKAT DI ATAS LOT 5 JALAN MEGAZINE,SEKSYEN 11W, BANDAR GEORGETOWN, DTL, PULAU PINANG. Company ABC Department Safety & Health Title Scaffold Safe Work Method Statement. Rev.No 00 Originator Approver ABC Position C & S Engineer Position Project Manager Date Date
- 2. 1 | P a g e CONTENTS PAGE 1. INTRODUCTION 1 2. PURPOSE 2 3. SCOPE 2 4. DEFINITIONS 3 5. CONTROL MEASURES FOR WORKING PLATFORMS 5 6. ERECTING, ALTERING OR DISMANTLING 5 6.1 DESIGN CRITERIA FOR ERECTION PLATFORMS 6 6.2 DESIGN CRITERIA FOR TEMPORARY EDGE PROTECTION 7 6.3 GENERIC WORK SEQUENCE – SCAFFOLD ERECTING AND DISMANTLING 7 APPENDIX A – SCAFFOLD DESIGN 8 APPENDIX B – SCAFFOLD CALCULATION 9 APPENDIX C – SCAFFOLD INSPECTION CHECKLIST 10
- 3. 2 | P a g e 1. INTRODUCTION This Safe Work Method Statement provides information on how to manage risks associated with scaffolds and scaffolding work at a workplace. It is supported by guidance for scaffold installation, scaffold dismantling, scaffold inspection and maintenance, and advice for contractor and workers on managing the risks associated with scaffolds and related scaffolding work. A scaffold is a temporary structure erected to support access or working platforms. Scaffolds are commonly used in construction work so workers have a safe, stable work platform when work cannot be done at ground level or on a finished floor. Scaffolding work is erecting, altering or dismantling a temporary structure erected to support a platform and from which a person or object could fall more than 4 metres from the platform or the structure. Scaffolding work must be undertaken under supervision of scaffold supervisor, which by a person holding the appropriate licence. Every metal tube scaffold exceeding 40 meter in height and every other scaffold exceeding 15 metres in height shall be constructed in accordance with the design and drawings of a Professional Engineer.
- 4. 3 | P a g e 2. PURPOSE The following method statement is written to provide a safe and efficient system of work for the installation of general working scaffold to all areas of construction sites both internal and external. It will also cover all scaffold adaption’s to general scaffold and any safety and maintenance checks to be held under current safety legislation within the construction industry. It will cover such areas as; first installation scaffold, basic lifts (internal and external), adaption’s as work progresses during the duration of project to basic scaffolding and general working guidelines . Any deviation which is necessary for Safe Work Method Statement must first be notified to Project Manager and P.E who will agree the best approach to Safe Work Method Statement with principle contractors approval. 3. SCOPE This guide covers the erecting, altering and dismantling of prefabricated frame modular scaffolding founded on the ground or another solid surface. Fully decked scaffolds over 15 m in height may exceed the design strength of the system and the design should be verified by an engineer competent in scaffold design. There may be prefabricated modular steel scaffolding designs (component or site-specific configuration) that require specific erection methods. For example: • scaffolds that require specific engineering designs, such as hung scaffolds, cantilevered scaffolds, loading platforms, birdcage scaffolds or scaffolds where the loads from one bay are transferred to the adjoining standards, eg spur scaffolds or scaffolds incorporating an access opening
- 5. 4 | P a g e 4. DEFINITIONS For the purpose of this guide, the following definitions apply: BASE LIFT the first level of transoms and ledgers above the jacks. CLOSED PLATFORM a platform that is constructed and that is capable of functioning as a working platform, but is temporarily closed to any loading or access. ERECTION PLATFORM a temporary platform that is placed on the scaffold or temporarily constructed as part of the scaffold to assist with the installation (or removal) of the standards, transoms, ledgers, guardrails and mid-rails for the platform above. HOP-UP BRACKET (PLATFORM a bracket that is attached to a scaffold to enable a platform to BRACKET) be placed adjacent to a bay of an independent scaffold. MUST indicates that the requirements are mandatory under the occupational health and safety legislation. PRINCIPAL CONTRACTOR a person who is appointed or taken to be the principal contractor for the construction work. SAFE WORK METHOD • describes how work is to be carried out STATEMENT • identifies the work activities assessed as having safety risks • identifies the safety risks • describes the control measures that will be applied to the work activities • includes a description of the equipment used in the work, the standards and codes to be complied with, the qualifications of the personnel doing the work and the training required to do the work. SHOULD indicates a recommendation to do something that is not a mandatory requirement under the occupational health and safety legislation. SOLID SURFACE a surface with adequate stiffness and strength to sustain imposed loads from the scaffold. TEMPORARY EDGE PROTECTION a guardrail and midrail or proprietary system installed to provide fall protection for scaffolders in advance of the placement (or after removal) of the permanent edge protection.
- 6. 5 | P a g e TIE BAR a member fixed to the cantilevered end of a pair of hop-up brackets to prevent the brackets from spreading and the planks from becoming dislodged. TOE BOARD a scaffold plank or purpose-designed component fixed at the edge of a platform to prevent material from falling off the platform. WORKING FACE the face of a building or structure at which the scaffold has been erected to enable work to be carried out at some stage of the project. WORKING PLATFORM a platform on a scaffold, positioned at a work location for supporting personnel, equipment and materials, and used to provide a working area.
- 7. 6 | P a g e 5. CONTROL MEASURES FOR WORKING PLATFORMS There should be a system in place to limit the number of platforms permitted as working platforms, and to limit the respective platform ratings, to prevent the scaffold being overloaded. Possible systems include: • closing off platforms at the access points by physical means • placing signs at the access points to each platform, advising if closed or indicating the duty rating of a working platform • assigning an on-site scaffold coordinator to the relevant contractors, to control the use of various platforms, or sections of platform. Principal contractors must clearly identify in their site-specific occupational health and safety (OHS) management plan those responsible for implementing the control measures. The system should also: • include in the site induction the control measures and the names of those persons responsible for implementing the controls • have means to identify working platforms that are closed – this can be discussed at regular toolbox meetings • have means to monitor and review the control measures regularly – if the control measures are not effective, they should be modified, and records of the monitoring and modifications should be kept. 6. ERECTING, ALTERING OR DISMANTLING Risk assessments and safe work method statements are the joint responsibility of the principal contractor and scaffolding employer. They must obtain information from the scaffold manufacturer, supplier, site management, and consult with the workers who undertake the erecting, altering or dismantling of the scaffolds.. For safe completion of the work, consider the following: • Pass scaffold items – do not throw them. • The scaffolder must work from a safe position when installing edge protection for the platform above, eg by: • The scaffolder should be supported on a fully planked platform when installing the platform immediately above. • The fully planked platforms should be nominally 2 m apart, vertically, and remain in place until the scaffold is dismantled. • The first platform can be up to 3 m above the ground or supporting surface, except for the access bay. • Safe access must be provided up to the first platform and between platforms on the scaffold. • Risks from overhead power lines must be assessed and controlled.
- 8. 7 | P a g e 6.1 DESIGN CRITERIA FOR ERECTION PLATFORMS Erection platforms should comply with the criteria given below. Type of erection platform Criteria Ladder-based erection Load rating: minimum 120 kg. platforms Stiles: minimum spacing 350 mm. (for scaffolding platform Platform area: minimum 350 mm wide x 300 mm deep, including the ladder rung if it is at the same level as the platform.erection platform max 2 m in heights ) For erection platforms up to 1.2 m in height, incorporate a built-in mid-rail on the three non-access sides. For single ladder types the continuing stiles are considered as mid-rails. For erection platforms between 1.2 m and 2 m in height, incorporate guardrails on the three non-access sides. Erection platforms Load rating: minimum 120 kg. supported on ledgers/ Erection platform area: minimum 500 mm x 600 mm. guardrails (suitable for On scaffolding edge sides, incorporate a built-in mid-rail. scaffolding platform spacing of up to 2 m) Scaffold planks supported Platform area: minimum 2 x 225 mm wide scaffold planks. on temporary transoms (suitable for scaffolding platform spacing of up to 2 m)
- 9. 8 | P a g e 6.2 DESIGN CRITERIA FOR TEMPORARY EDGE PROTECTION Temporary edge protection must meet the strength requirements for guardrails and mid-rails specified in BOWEC General requirements and should be designed to allow the installation and removal of the permanent guardrails whilst it is in position. 6.3 GENERIC WORK SEQUENCE – SCAFFOLD ERECTING AND DISMANTLING Where work methods differ from the generic work sequence below alternative methods must provide an equivalent level of safety to those specified in this guide. Task Activity – Erection of Scaffold Break the job down into steps Base out scaffold • Prevent unauthorised access to scaffold area. and erect base lift • One scaffolder holds standards, while another places transoms and and first lift ledgers. • Adjust screw jacks to level the scaffold. • Erect transoms and ledgers for the first lift. • Erect planks from below for the first lift. Complete first lift • Install access stairway or ladder to platform for the first lift. • If access is by stairway, ensure the stair access bay is erected with the run of the scaffold. • Install edge protection comprising guardrail, mid-rail and toeboard or mesh panels to first lift. Erect next lift Working from a fully planked platform on the first lift, install standards from a platform (where the standard joint is 1 to 1.5 m above the platform level), transoms, ledgers and hop-ups for the next lift above. Where using erection platforms − Place an erection platform on the scaffold − Working from the erection platform, erect standards (where the standard joint is 1 to 1.5 m above the erection platform level), mid-rails and guardrails for the lift above. − Standing on the working platform (or an erection platform for lifts of 2.5 to 3 m), place planks within the transoms to form the above working platform. − Install ladder or stairway access to working platform above. − Access the above working platform. − Install toeboards (or other systems to prevent objects falling).
- 10. 9 | P a g e Break the job down into steps Where using temporary edge protection − Install temporary edge protection for platform above. − Install transoms and ledgers for platform above. − Standing on the working platform (or an erection platform for lifts of 2.5 to 3 m), place planks within the transoms to form the above working platform. − Install ladder or stairway access to working platform above. − Access the above working platform. − Install next standards, guardrails and mid-rails. − Install toeboards (or other systems to prevent objects falling). • Scaffold should be erected as close as practicable to the working face. Where the scaffold is greater than 225 mm from the working face, install guardrails and mid-rails to the inner face standards. Erect next lifts • Unless a specific engineering design is provided, fix the first row of ties no more than 4 m above the ground. Do not allow a scaffold to free stand more than 4 m above the ground or a row of ties. • Secure objects or remove unsecured objects from the scaffold. • Repeat erection sequence as per previous task. Dismantle scaffold General precautions • Access the scaffold platform from a ladder or stair access – do not climb the standards, ledgers and transoms. • Maintain a tidy work area. • Do not overload the scaffold bays – progressively remove scaffolding equipment from platforms and stack it neatly on the ground. • Do not leave loose materials on platforms. • Do not throw down any materials or scaffolding equipment. • Remove chain wire mesh and shade cloth while working from a fully planked platform. • Work with a guardrail in place when removing and passing mesh Panels down. • Work from a fully planked platform below when dismantling hop-up brackets, tie bars and planks. • Do not allow an unsheeted scaffold to free stand more than4 m or a sheeted scaffold more than 2 m above the highest tie remaining in place. • Before lifting a toeboard, ensure the adjacent plank is held in place. Task Activity
- 11. 10 | P a g e Task Break the job down into steps Activity Dismantling sequence Note: Follow the below dismantling sequence if you are using erection platforms. If you are using a temporary edge protection system, modify the dismantling sequence to suit. • Access the top platform by stairway or ladder. • Start dismantling from an end bay. • Remove chain wire mesh and shade cloth, or mesh panels, from the level to be dismantled or from the whole scaffold if not required during the dismantling process. • Move down to the platform below. • Dismantle top platform planks. • Working from an erection platform on the fully planked platform, dismantle guardrails, mid-rails, ledgers, transoms and standards from the level above. • Step off the erection platform. • Dismantle the hop-up platform above, if in place. • Remove not more than three planks (ensure at least two planks remain) to enable the dismantled materials to be passed down to the next level (where they are to be temporarily stacked or removed from the scaffold). • If removing dismantled materials progressively down through the scaffold, ensure that the gaps created are not directly below each other and that planks are replaced when a gap is not being used to lower materials. • Remove ties progressively as the scaffold is dismantled. Progressively repeat this procedure until dismantling can be completed from the ground