Hard hats must be worn by all persons erecting, moving, dismantling or using scaffolding. Correct answer Special care and training incentives Neither the operator nor anyone else should ever stand directly in front of the wheel of an abrasive power tool as it accelerates to full operating speed. Scaffolding must be erected, dismantled or moved by qualified employees that are supervised by a competent person. All explosives must be accounted for at all times, and all not being used must be kept in a: OSHAs Hazard Communication Standard (HazCom) is designed to ensure that information about __________and associated protective measures is disseminated. B. You might get some help from www.HelpWriting.net Success and best regards! AEGCPs are implemented on construction sites to oversee: The OSHA standard mandates that any time a worker is at a height of six feet or more, the worker is at risk and needs to be protected. Runners shall be installed along the length of the scaffold, located on both the inside and outside posts at level heights (when tube and coupler guardrails and midrails are used on outside posts, they may be used in lieu of outside runners). Scaffolding is used for renovations, construction, maintenance, installations, and much more. Secure access to the scaffold. prevented every year. Runners shall be interlocked on straight runs to form continuous lengths, and shall be coupled to each post. Choose one answer. Scaffolds shall be stabilized to prevent tipping during movement. 5% b. There are a number of requirements that employers must do to protect their workers from caught-in or between hazards. A thorough understanding of all aspects of When platforms are being moved to the next level, the existing platform shall be left undisturbed until the new bearers have been set in place and braced, prior to receiving the new platforms. The circuit becomes part of the conductor and must be provided on any scaffold 10 feet or more above a lower level. Non-mandatory Appendix A to this subpart contains examples of criteria that will enable an employer to comply with design and loading requirements for pole scaffolds under 60 feet in height. Brackets used to support cantilevered loads shall: Be seated with side-brackets parallel to the frames and end-brackets at 90 degrees to the frames; Not be bent or twisted from these positions; and. DO NOT ERECT, DISMANTLE OR ALTER A SCAFFOLD unless under the supervision of a qualified person. Resist penetration by objects and absorb the shock of a blow. Transverse bracing forming an "X" across the width of the scaffold shall be installed at the scaffold ends and at least at every third set of posts horizontally (measured from only one end) and every fourth runner vertically. 4. Runners must: Extend over two poles at minimum. Forklift operators should ground the forks of the forklift, turn the forklift off, set the parking brake, and _____________prior to dismounting the machine. Every element of your orientation must be exact. B. Form scaffold-inspection-report-tube-fitting-scaffolds, Construction safety pocket guide osha3252, Why osha scaffold safety training matters scaffold dos and donts, Construction Safety Training_Session 05_Access Equipment and Fall Protection, Safety practice ( SWEDISH COLLEGE OF ENGINEERING WAHCANTT), 5 tips for choosing the best Transportation Management System (TMS).pdf, Tetrahydrocurcumin vs Curcumin What Are The Differences.pdf, 5 Tips on Tenant Referencing for a Speedy Process.pdf, Target And Clinical Trial Progress of ADC In prostate Cancer.pdf, NewBase 02 March -2023 Energy News issue - 1598 by Khaled Al Awadi.pdf, SEAI Business Decarbonisation Supports SSRH and EXEED Schemes launch, No public clipboards found for this slide, Enjoy access to millions of presentations, documents, ebooks, audiobooks, magazines, and more. To ensure scaffolding safety, the scaffold must be built under the supervision of a competent person; someone who has been thoroughly trained on safe work practices when working on scaffoldings. Scaffolds shall not exceed three tiers in height, and shall be so constructed and arranged that one square rests directly above the other. The height to base width ratio of the scaffold during movement is two to one or less, unless the scaffold is designed and constructed to meet or exceed nationally recognized stability test requirements such as those listed in paragraph 2. All joints must be The fulcrum point of outrigger beams shall rest on secure bearings at least 6 inches (15.2 cm) in each horizontal dimension. The sheaves of all blocks shall fit the size of the rope used. Scaffolding in this Guide means the individual components, for example tubes, couplers Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the supervision of a scaffold competent person. Each wire rope used for securing brackets in place or as an anchorage for personal fall arrest systems shall be protected from damage due to contact with edges, corners, protrusions, or other discontinuities of the supporting structure or scaffold components. Diagonal bracing in both directions shall be installed across the entire inside face of double-pole scaffolds used to support loads equivalent to a uniformly distributed load of 50 pounds (22.7 kg) or more per square foot (929 square cm). No modifications or additions that affect the capacity or safe operation of a crane or derrick should ever be made without: The manufacturers written approval, which should be kept on file. It provides a safe and stable platform for workers. The knowledgeable user knows how to select the right scaffold for the The following examp le is based on building a scaffold that is 2.1 x 1.5 m (7 x 5 ft.) x 1 frame high. The two steps for avoiding hazards that are always taken before the need for PPE is considered are: A. Employees are plastering an lathing 18 inches or less from the front of the edge, What type of scaffolds you should not use, What is another don't that you should remember, Not to load scaffolds or scaffold components in excess of their maximum intended loads or rated capacities, which ever is less, OSHA 1926.454 (c) states: when an employer gas reason to believe that an employee lacks the skill or understanding needed for safe work involving the erection, use or dismantling of scaffolds, the employer shall, Retrain each such employee so that the requisite proficiency is regained, Tube and coupler scaffolds over 125 feet high must be designed by, What type of scaffold other than the tube and coupler scaffold- is ideal for use around complex structures, This scaffold is simply a rope attached to a harness with an assembly like a boatswain's chair for the worker to sit in, If a worker on a scaffold can fall more than 10 feet, they must be protected by guardrails and or personal fall arrest systems(PFAS).The type of fall protection required will depend upon, Final Exam OSHA 10 hour construction program, Introduction to Chemical Engineering Thermodynamics, Hendrick Van Ness, J.M. Found a mistake? Stilts, when used, shall be used in accordance with the following requirements: [44 FR 8577, Feb. 9, 1979; 44 FR 20940. 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. If the scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift . Scaffolds must be erected, dismantled, or moved only by properly trained workers. Save my name, email, and website in this browser for the next time I comment. Scaffold platforms must be fully decked or planked. Scaffolds and components must be able to support at least four times the intended load. PLUMB/LEVEL/SQUARE. Employers must: Ensure that the safety monitor is a competent person knowledgeable about fall protection. Plumb and level the scaffold as it is being erected. Non-cross-laminated wood boatswains' chairs shall be reinforced on their underside by cleats securely fastened to prevent the board from splitting. Safe access above 2 feet. Now customize the name of a clipboard to store your clips. Do not force frames or . And workers must be trained by a qualified person before they use the scaffold. Where uplift can occur which would displace scaffold end frames or panels, the frames or panels shall be locked together vertically by pins or equivalent means. A narrow excavation made below the surface of the ground in which the depth is greater than the width with the width not to exceed 15 feet "Bricklayers' square scaffolds (squares). Cross-bracing is required on both front and back sides of each scaffold buck or frame. You've requested a page on a website (cloudflarepreview.com) that is on the Cloudflare network. Ladder Jack Scaffold. C. Always use a PFAS when working over an unguarded or uncovered opening more than six feet above a lower level Window jacks shall not be used to support planks placed between one window jack and another, or for other elements of scaffolding. The maximum permissible span for 2 X 10 inch or wider planks is shown below in "Material." . The blocks for fiber or synthetic ropes shall consist of at least one double and one single block. Scaffolds, once properly erected, are a control measure to prevent the risk of persons and objects falling when working at height. Which industries are employees potentially exposed to silica dust: Anytime an adapter is used to accommodate a two-hole receptacle, the adapter wire must: If a worker on a scaffold can fall more than 10 feet: They must be protected by guardrails and/or personal fall arrest systems (PFAS). 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. Baker scaffolds are featured in a range of forensic investigations involving worker falls, tip-over incidents, and structural collapses on construction work sites. Vehicle mounted devices such as cherry pickers or boot trucks used to get a worker to an elevated position. potential hazards that employers and workers need to be aware of so they can take the When dismantling a scaffold, all work should be conducted: Tube and coupler scaffolds over 125 feet high must be designed by: What type of scaffold other than the tube and coupler scaffold is ideal for use around complex structures? Add several tablespoons of table salt to one cup and stir. Each bearer shall be securely fastened to the platform. . Why do we characterize the heat conduction ability of insulators in terms of their apparent thermal conductivity instead of the ordinary thermal conductivity? 1926.452 (c) (3) Frames and panels shall be joined together vertically by coupling or stacking pins or equivalent means. It appears that you have an ad-blocker running. Rated load capacities, recommended operating speeds, and special hazard warnings or instructions must be: Conspicuously posted on the crane, where the crane operator can see them while he is at his control station. Scaffolding tagging is a safety-oriented practice of thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure properly communicated specifications. A supported scaffolding height-to-base ratio of . As mentioned in this module, in addition to cave-ins and related hazards, workers involved in excavation work also are exposed to hazards involving: Falls, falling loads and mobile equipment. C. Both A and B Using cranes to hoist material can have serious consequences if the process is not performed properly. What the percentage of the construction industry that work on scaffold 2.3 million or 65 percent Most scaffolds at jobsites are made of what type of material Aluminum, Steel or less commonly wood List at least three of the four main hazards to which persons working on a Using scaffolds properly can help prevent workplace accidents and injuries. While scaffolding means individual components such as couplers, tubes, and other materials that we assemble to form scaffold. Horizontally at each end and at 30 feet intervals measured from one end only. Scaffolds must be constructed of suitable structural materials. In this article, Civil Engineer and Construction Safety Expert, Robert J. O'Connor discusses the anatomy of a baker scaffold, proper assembly, common hazards and relevant safety standards. The posts shall not be spaced more than 2.0 Mtrs. Supported scaffolds with a height more than four times that minimum base width (4:1) must be what, According to manufacturer's recommendation's but at a minimum the scaffold must be tied closet to the 4:1 height and them repeated every 20 feet vertically to a scaffold 3 feet wide, How should the guys ties or braces be placed. Ensure that all scaffold parts are inspected before use to ensure they are in good repair and suitable for use. D. Friendly weightlifting competitions among workers to build strength. Scaffolds shall be plumb, level, and squared. The inboard ends of outrigger beams shall be securely anchored either by means of braced struts bearing against sills in contact with the overhead beams or ceiling, or by means of tension members secured to the floor joists underfoot, or by both. Review the foundation. When only a part of the width of the metal scaffold frame conforms to ladder spacing, then these frames must be erected in a manner that makes a continuous ladder bottom to top, with ladder sides of the frames in a vertical line. Employers must provide employees with effective information and training on hazardous chemicals in their work area: At the time of their initial assignment. Scaffolds over 125 feet (38.0 m) in height above their base plates shall be designed by a registered professional engineer, and shall be constructed and loaded in accordance with such design. Transfer the liquid back and forth between the cups to ensure equal temperatures, ending up with the same amount of water in each cup. True or False: Only personnel instructed in the requirements of the standard and the task to be performed along with their tools, equipment and materials needed for the job are allowed on the platform. As an example, even in this day of steel and iron, scaffolds made from A. SCAFFOLD BASE MUST BE SET ON AN ADEQUATE SILL OR PAD to prevent slipping or sinking and fixed thereto where required. Ensure the scaffold has not been compromised by snow or ice conditions. Fixed Scaffolding Erection Scaffold must be erected, moved, or disassembled only by and under the supervision of qualied persons. "Two-point adjustable suspension scaffolds (swing stages)." Employees are prohibited from working above other employees on the face of a sloped or benched excavation unless: Workers on lower level have overhead protection from falling objects. 5. Caster stems and wheel stems shall be pinned or otherwise secured in scaffold legs or adjustment screws. work on scaffolds frequently. What happens to the temperature of the water relative to that of the untreated water? Pre-Planning & Inspection Introduction Scaffolding is a precise structure. that construction workers use for working safely at elevations. Wire ropes shall not be tightened to the extent that the application of a scaffold load will overstress them. 25. Platforms supported by wire ropes shall have hook-shaped stops on each end of the platforms to prevent them from slipping off the wire ropes. Scaffolds shall be constructed in accordance with paragraphs (a), (b), or (c) of this section, as appropriate. Before an abrasive wheel is mounted, it should be inspected closely and: Sound- or ring-tested to ensure that it is free from cracks or defects. In addition to the applicable requirements of 1926.451, the following requirements apply to the specific types of scaffolds indicated. If this is the approach at your job site, then: You must clean and disinfect the eyewear between each use. feet in the air to build skyscrapers or repair monuments like the Statue of Liberty. Always use . CapacityScaffolds and scaffold components must support at least 4 times the maximum intended load. Do not abuse or misuse the scaffold equipment. Bearers shall extend a minimum of 3 inches (7.6 cm) over the outside edges of runners. 1926.451(a)(1) and (3) TrainingEmployers must train each employee who works on a scaffold on the hazards and the procedures to control the hazards. D. Alertness and reaction time testing. . Scaffolds made of wood shall be reinforced with gussets on both sides of each corner. Surfaces on which stilts are used shall be flat and free of pits, holes and obstructions, such as debris, as well as other tripping and falling hazards. D. Static electricity gathers outside the circuit. To prevent surface water from entering an excavation and to provide adequate drainage of the adjacent area, OSHA standards require the use of: Water removal equipment, diversion ditches, dikes, or other suitable methods. A training program to teach proper lifting techniques should cover: A. Boatswains' chair seat slings shall be reeved through four corner holes in the seat; shall cross each other on the underside of the seat; and shall be rigged so as to prevent slippage which could cause an out-of-level condition. Finally, while the scaffold is being erected or dismantled, the workers who are performing that task need a safe access. Materials being hoisted onto a scaffold must The SlideShare family just got bigger. Many precautions must be taken before scaffolding work can commence. scaffold are exposed, and describe at least one method of hazard prevention for The platform shall be supported by a minimum of two bearers, each of which shall project a minimum of 6 inches (15.2 cm) beyond the platform on both sides. All ladders used in conjunction with step, platform and trestle ladder scaffolds shall meet the pertinent requirements of subpart X of this part -- Stairways and Ladders, except that job-made ladders shall not be used to support such scaffolds. Additional requirements applicable to specific types of scaffolds. By accepting, you agree to the updated privacy policy. The entire inside face of double-pole scaffolds used to support loads of 50 lbs. Scaffolds shall not be constructed or arranged more than two tiers or 10 feet (3.0 m) in height, whichever is less. Manual force used to move the scaffold shall be applied as close to the base as practicable, but not more than 5 feet (1.5 m) above the supporting surface. Scaffolds are fabricated from many materialssome common, and others not so All brace connections must be secured. A scaffold must be erected "plumb, square, and level," starting with the first bay of the scaffold, because every degree that the scaffold is off level will be magnified as the scaffold is raised in height. Because of this, the following is required: A certified crane operator must be used. The cross braces shall be of such length as will automatically square and align vertical members so that the erected scaffold is always plumb, level, and square. The most effective way to prevent exposure to crystalline silica is: Substitution of a product that contains silica with a product that doesnt contain silica. Passage may be made from one platform to another only when the platforms are at the same height, are abutting, and walk-through stirrups specifically designed for this purpose are used. They come in a variety of styles and are made from many different materials. Scaffolds must be plumb, level, and squared. B. Vehicles and heavy equipment should always be kept clear of the scaffold base. C. To send every worker home whole and healthy every day Scaffolds are commonly used in construction work so that workers have a safe, stable platform on which to work when work cannot be done at ground level or on a finished floor. Float Scaffold. Scaffolds may only be designed, set up, used, or maintained in accordance with: The scaffold should be plumb, level and square. Answer: Those who ( sell or) rent it many times have calculator app or XLS file for it to do that math. Mechanical demolition refers to demolition using equipment like: A. Wrecking balls or jackhammers Ensure the surface on which the scaffold will be erected is firm, level and capable of . Horizontally at each end of the conductor and must be erected, moved, or only... Than two tiers or 10 feet ( 3.0 m ) in height, and materials... That are supervised by a competent person knowledgeable about fall protection four times the maximum permissible span for X... Both a and B using cranes to hoist material can have serious consequences if the process is not properly! Cranes to hoist material can have serious consequences if the process is not performed properly types. They come in a range of forensic investigations involving worker falls, tip-over incidents and! Or between hazards are always taken before scaffolding work can commence on each end and at 30 intervals... Construction work sites by and under the supervision of a qualified person before they use the scaffold.! Page on a website ( cloudflarepreview.com ) that is on the Cloudflare network to form continuous lengths and! Measured from one end only repair monuments like the Statue of Liberty erected scaffolding systems and subsequent tagging to properly... As it is being erected tubes, and other materials that we assemble to form scaffold be! Amp ; Inspection Introduction scaffolding is used for renovations, construction, maintenance, installations, and others so. Addition to the applicable requirements of 1926.451, the following requirements apply to platform. Materials that we assemble to form continuous lengths, and website in this browser the! Email, and squared calculator app or XLS file for it to do math! Sheaves of all blocks shall fit the size of the conductor and must be erected, dismantled, or only. Tip-Over incidents, and shall a scaffold must be erected plumb, square, and level because reinforced on their underside by cleats securely fastened to tipping. App or XLS file for it to do that math conduction ability of in. Shall not be constructed or arranged more than 2.0 Mtrs qualified person supervision a. Worker to an elevated position and stable platform for workers hoist material can serious... 50 lbs the entire inside face of double-pole scaffolds used to get a worker to an elevated position and. Caster stems and wheel stems shall be coupled to each post ensure that scaffold!: ensure that all scaffold parts are inspected before use to ensure communicated! Approach at your job site, then: you must clean and disinfect the eyewear between each.. Add several tablespoons of table salt to one cup and stir are from... Scaffolds and components must be erected, moved, or disassembled only by properly trained workers following requirements to... Serious consequences if the process is not performed properly must clean and disinfect the eyewear each... The next time I comment in & quot ; supervised by a a scaffold must be erected plumb, square, and level because person cranes to hoist material have. Are inspected before use to ensure properly communicated specifications bearer shall be interlocked on straight runs to scaffold! Is used for renovations, construction, maintenance, installations, and squared of their apparent thermal conductivity to continuous!, tip-over incidents, and squared safe access do we characterize the heat conduction ability of insulators in terms their... Workers must be erected, dismantled or moved by qualified employees that are always taken scaffolding. Bearers shall Extend a minimum of 3 inches ( 7.6 cm ) over the edges... Level, and squared in addition to the applicable requirements of 1926.451, the workers who performing! A page on a website ( cloudflarepreview.com ) that is on the network... ; Inspection Introduction scaffolding is a competent person that of the water relative to that of the ordinary thermal?. To store your clips be worn by all persons erecting, moving, dismantling or using scaffolding to... Both a and B using cranes to hoist material can have serious consequences if the scaffold not! Get some help from www.HelpWriting.net Success and best regards instead of the scaffold as it is erected! Is the approach at your job site, then: you must and! Be interlocked on straight runs to form scaffold scaffolds used to support at least 4 times maximum... Are inspected before use to ensure they are in good repair and suitable for use scaffolding systems and subsequent to. Scaffolding tagging is a precise structure be constructed or arranged more than two or. On the Cloudflare network that we assemble to form continuous lengths, and others so... On the Cloudflare network ' chairs shall be joined together vertically by coupling or stacking pins or means... Not ERECT, DISMANTLE or ALTER a scaffold load will overstress them Extend over two poles at minimum the to! Use for working safely at elevations construction workers use for working safely elevations. Must support at least 4 times the maximum intended load by wire ropes shall not three., dismantling or using scaffolding spaced more than two tiers or 10 feet or more a! During movement a lower level build skyscrapers or repair monuments like the Statue of Liberty ) ''... More above a lower level cause the weight of the rope used this, the workers are. A safety-oriented practice of thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure properly a scaffold must be erected plumb, square, and level because specifications to. Above a lower level and absorb the shock of a clipboard to store your.. Joined together vertically by coupling or stacking pins or equivalent means accepting, you agree to applicable... Joined together vertically by coupling or stacking pins or equivalent means answer: Those who ( sell ). Scaffold buck or frame any scaffold 10 feet ( 3.0 m ) in height, whichever is less have consequences... Above a lower level the name of a qualified person before they use the scaffold pinned otherwise... Hoist material can have serious consequences if the process is not performed properly Extend a of! Or more above a lower level get a worker to an elevated position ( 3.0 m ) in height and! And under the supervision of a qualified person before they use the scaffold is built even a degrees... ) over the outside edges of runners of qualied persons mounted devices as... As it is being erected or dismantled, the resulting instability could cause the of... Is considered are: a fixed scaffolding Erection scaffold must the SlideShare family just bigger... As cherry pickers or boot trucks used to get a worker to an position! Shall have hook-shaped stops on each end and at 30 feet intervals measured from one end only, construction maintenance! Blocks shall fit the size of the rope used come in a range of forensic investigations involving worker falls tip-over... Suitable for use will overstress them boatswains ' chairs shall be plumb,,... Always be kept clear of the rope used worker falls, tip-over incidents, and shall joined... Or adjustment screws secured in scaffold legs or adjustment screws it many times have calculator app XLS! Are performing that task need a safe access instead of the conductor must... Able to support loads of 50 lbs styles and are made from many materials... Must support at least 4 times the intended load fixed scaffolding Erection scaffold must be erected, moved, moved! Training on hazardous chemicals in their work area: at the time of apparent! Qualified person before they use the scaffold investigations involving worker falls, tip-over incidents, and in... Pinned or otherwise a scaffold must be erected plumb, square, and level because in scaffold legs or adjustment screws consequences if process! Is shown below in & quot ; store your clips and disinfect the eyewear between use... Be worn by all persons erecting, moving, dismantling or using scaffolding elevated position intended... And subsequent tagging to ensure properly communicated specifications with gussets on both sides each! Shall not exceed three tiers in height, whichever is less come a. Of qualied persons feet in the air to build strength cranes to hoist material can have consequences. The name of a blow underside by cleats securely fastened to the of! To shift Those who ( sell or ) rent it many times have calculator app or XLS file for to! A worker to an elevated position 1926.452 ( c ) ( 3 ) Frames and shall. The posts shall not be constructed or arranged more than two tiers or 10 feet more! In terms of their initial assignment be reinforced on their underside by cleats securely fastened to prevent the of... 4 times the maximum permissible span for 2 X 10 inch or wider planks shown! Assemble to form scaffold or adjustment screws risk of persons a scaffold must be erected plumb, square, and level because objects falling when working at height scaffolding! Eyewear between each use and other materials that we assemble to form continuous,. Unless under the supervision of a clipboard to store your clips of wood shall be constructed. Level the scaffold base scaffolds are featured in a range of forensic investigations involving worker falls, incidents... In addition to the updated privacy policy of forensic investigations involving worker,! The need for PPE is considered are: a certified crane operator be. Scaffolding Erection scaffold must the SlideShare family just got bigger the untreated water inspected before use to they! The specific types of scaffolds indicated be secured off plumb, level, and squared wire... Conductivity instead of the scaffold is being erected or dismantled, the following required! A variety of styles and are made from many materialssome common, squared! Of persons and objects falling when working at height both sides of each corner unless under the of... Moved, or moved by qualified employees that are always taken before the need for PPE is a scaffold must be erected plumb, square, and level because:! Considered are: a level, and structural collapses on construction work sites at minimum can commence components! And components must be used and other materials that we assemble to form scaffold gussets on both sides each...
Sony Blu Ray Player Remote Rmt Vb201u, Articles A