COSH-413-2023-Module-5-Scaffolding-Safety-DO-128-13-as-Amended-Rule-1414

Scaffolding

Any temporary elevated platform and its supporting structure used for supporting employees or materials in construction works.

Supported Scaffolds

Platforms supported by legs, outrigger, beams, brackets, poles, uprights, posts, frames, or similar rigid support.

Frame or fabricated scaffolds

The most common type of scaffold that is versatile, economical, and easy to use.

Mobile scaffolds

Supported scaffolds set on wheels or casters, designed to be easily moved.

Tube and coupler scaffolds

Scaffolds built from tubing connected by coupling devices, used for heavy loads or multiple platforms.

Pole scaffolds

Supported scaffolds where every structural component is made of wood.

Suspended Scaffolds

Platforms suspended by ropes or other non-rigid means from an overhead structure.

Two-point adjustable suspension scaffolds

The most common type of suspended scaffold, hung by ropes or cables connected to stirrups at each end of the platform.

Single-point Adjustable

Suspended scaffold consisting of a platform suspended by one rope from an overhead support.

Support Device

Rests on surfaces capable of supporting at least four times the load imposed.

Counterweights

Mechanically secured to outrigger arm, made of non-flowable materials, and must resist at least four times the tipping moment.

Guardrails

Rails secured to uprights and erected along the exposed sides and ends of platforms.

Platform

A working surface provided on a scaffold to support the weight of workers, tools, and materials.

Scaffold Wood Planks

Wooden planks used as the platform on the scaffold.

Fall Arrest Systems

A fall protection system that prevents serious injury or death of a worker due to a fall.

Plumbness

Ensuring that the scaffold is balanced and erected at a 90-degree angle straight up from a level surface.

Foundations

The surface upon which the scaffold is erected.

Coupling Devices

Connective devices used to secure scaffold frames together.

Swivel Coupler

A load bearing fitting that rotates to join tubes at any angle.

Double Coupler

Also known as right angle or 90° couplers, used to join tubes at right angles with maximum load carrying capacity.

Putlog Coupler

A fitting used to fix putlogs to ledgers, not suitable for joining ledgers and standards together or in load bearing situations.

End to End Coupler

Used to join tubes together end to end.

Sleeve Coupler

A type of coupler used for expanding joint pins.

Standards (Post)

Vertical or near vertical tubes that act as a support for ledgers and are based on the ground or a structure.

Ledgers (Runners)

Longitudinal tubes fixed parallel to the face of the building, providing support for transoms and can be used as part of the ties in the scaffold.

Toe board

A barrier secured along the sides and ends of a platform to prevent materials or tools from falling.

Engineering Design

The design of a scaffold system by a registered professional engineer, including loading capacities, tie-backs, foundations, etc.

Management / Employers

Responsible for providing proper scaffolding materials and equipment, training workers, and ensuring safety measures.

Workers

Responsible for following safe work procedures, using necessary equipment and personal protective devices, and protecting other workers.

Design Approvals

Site fabricated/conventional supported scaffolds exceeding 6 meters in height or a working load of 150 kg/m2 must be designed and inspected by a structural engineer and approved by the appropriate authority.

Scaffold Competent Person

Designated by the employer, responsible for determining the feasibility and safety of fall protection for personnel erecting, installing, or dismantling scaffolds.

Inspection

Regular inspection of scaffold systems due to severe weather conditions, with records maintained on-site.

Scaffold Type and Selection

Considerations for weight, site conditions, height, type of work, duration, weather conditions, and pedestrian traffic when selecting the appropriate scaffold.

Scaffold Capacity

Scaffolds must be capable of supporting their own weight and at least 4 times the expected load.

Scaffold Load Ratings

Scaffolds are designed to meet specific load ratings, categorized as light duty, medium duty, and heavy duty.

Types of Scaffolding

Tube and Coupler, System Scaffold, Frame Scaffolds, Cantilever Scaffold, Rustgo, Hanging Scaffold, Tower Scaffold, Shoring Scaffold, Scaffold Public Protection, Pole Scaffold, Pump Jack Scaffolds, Ladder Jack Scaffolds, Trestle Ladder Scaffold, Carpenters Bracket Scaffold, Hanging Scaffold System, Manual Work Platform, Horse Scaffolds, Adjustable Scaffolds, Scissor Lifts, Aerial Lifts, Two-Point Suspended Scaffolds.

Scaffold Use and Maintenance

Checking scaffold location, avoiding overloading, maintaining housekeeping, and following safe use practices.

Scaffold Inspection

Inspecting scaffold systems and components before each use to ensure structural stability.