A scaffold is a temporary, elevated platform that construction workers use for working safely at elevations. On straight run scaffolds, longitudinal bracing across the inner and outer rows of posts shall be installed diagonally in both directions, and shall extend from the base of the end posts upward to the top of the scaffold at approximately a 45 degree angle. When horses are arranged in tiers, each tier shall be crossbraced. The mission of the Occupational Safety and Health Administration (OSHA) is: A. All ladders used to support ladder jack scaffolds shall meet the requirements of subpart X of this part -- Stairways and Ladders, except that job-made ladders shall not be used to support ladder jack scaffolds. Find a more appropriate tool that doesnt cause debris to fly The scaffold must be erected with cross, horiz ontal, or diagonal braces, or combination. D. Rope-ladder scaffolds. Do Not Try To Drive More Than______Hours In Any One Day. Caster stems and wheel stems shall be pinned or otherwise secured in scaffold legs or adjustment screws. Save my name, email, and website in this browser for the next time I comment. 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. 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 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). 6. You can read the details below. The entire supporting structure shall be securely braced to prevent any horizontal movement. Many precautions must be taken before scaffolding work can commence. 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. D. All of the above. Warped. Personal Fall Arrest System, Guardrail System, or 3/4 inch (1.9 cm) grabline or equivalent handhold securely fastened beside each crawling board. Activate your 30 day free trialto unlock unlimited reading. Learning Objectives The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. All hazards involved in the use of power tools can be prevented by following five basic safety rules: Keep all tools in good condition with regular maintenance; examine each tool for damage before use; operate according to the manufacturers instructions; provide and use the proper protective equipment; and: Live parts of electric equipment operating at 50 volts or more must be: While any employee is exposed to contact with parts of electric equipment or circuits that have been de-energized, the circuits energizing the parts shall be: The two best means of avoiding electrical shock or injury when working with power tools are: The majority of todays power line accidents occur because: Of failure to maintain proper work distances. 6, 1979, as amended at 55 FR 47687, Nov. 14, 1990; 61 FR 46025, Aug. 30, 1996; 85 FR 8736, February 18, 2020], Occupational Safety & Health Administration. The ladder must extend 1 m (3 ft.) above the landing. Personal Fall Arrest System. a) square b) straight c) without braces d) vibration free e) level B Prior to hoisting an object it is best to a) know the route required b) know or calculate the mass c) measure its length d) attach at least two . DO NOT ABUSE OR MISUSE THE SCAFFOLD EQUIPMENT. B. 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. On scaffolds whose length is less than their height, such bracing shall be installed from the base of the end posts upward to the opposite end posts, and then in alternating directions until reaching the top of the scaffold. 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. No handhold available. 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. Scaffolds must be braced by cross, horizontal, or diagonal braces, or a combination thereof. 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. Platform units shall be securely attached to the needle beams by bolts or equivalent means. Additional requirements applicable to specific types of scaffolds. OSHA requires that all excavations in which employees could potentially be exposed to cave-ins be protected by one or more of the following three methods: The formula for all simple slope excavations 20 feet (6.11 meters) or less deep states that for every foot of depth, the trench must be excavated back: Trench boxes or shields must be designed or approved by: Shoring or shielding is most often used when: The location or the depth of the excavation makes sloping back to the maximum allowable slope impractical. Workers need to take which of the following common-sense steps to protect themselves from falls through skylights and roof and floor openings? "Plasterers', decorators', and large area scaffolds." 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. An estimated 2.3 million construction workers, or 65 percent of the construction industry, All brace connections must be secured. Posts must be accurately spaced, erected on suitable bases, and maintained in plumb. Scaffolds made of wood shall be reinforced with gussets on both sides of each corner. Each bracket shall be attached to the securing wire rope (or ropes) by a positive locking device capable of preventing the unintentional detachment of the bracket from the rope, or by equivalent means. Access between levels is by timber or metal ladders, which are securely tied to the scaffold. Scaffold platforms shall not be bridged one to another. Review the foundation. Materials being hoisted onto a scaffold must 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. Note: Except where . Other requirements are listed Scaffolds must be designed by a professional engineer in the following situations: Supported scaffolds exceeding: fifteen metres in height above their base support; or The erection and dismantling of the scaffolds must be done based on the instructions set out in the design drawings. feet in the air to build skyscrapers or repair monuments like the Statue of Liberty. ( 1) Scaffolds made of wood shall be reinforced with gussets on both sides of each corner. The support connection shall be arranged so as to prevent the needle beam from rolling or becoming displaced. Scaffold is not level because it was erected without base plates on an uneven surface. Light metal-type platforms having a rated capacity of 750 pounds or less and platforms 40 feet (12.2 m) or less in length shall be tested and listed by a nationally recognized testing laboratory. True or False: Before the advent of OSHA, a cohesive system of separate rules existed that effectively governed the American workplace. Diagonal braces shall be installed on all sides of each square. Scaffolding means a convenient platform for persons to work at height. A. SCAFFOLD BASE MUST BE SET ON AN ADEQUATE SILL OR PAD to prevent slipping or sinking and fixed thereto where required. Brackets (including those provided with pointed metal projections) shall be anchored in place by nails unless it is impractical to use nails. scaffold, and the suspended scaffold. 7. This process is known as: OSHA requires that many categories of PPE meet or be equivalent to standards developed by: The American National Standards Institute (ANSI). 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. Boatswains' chair seat slings shall be a minimum of five-eight (5/8) inch (1.6 cm) diameter fiber, synthetic, or other rope which will satisfy the criteria (e.g., strength, slip resistance, durability, etc.) Scaffolding must not be placed on unstable objects, such as bricks or blocks. Correct answer Special care and training incentives The inboard end of outrigger beams, measured from the fulcrum point to the extreme point of anchorage, shall be not less than one and one-half times the outboard end in length. Bracing shall be installed as close as possible to the intersection of the bearer and post or runner and post. Erected scaffolds should be continually inspected by users to be sure that they are maintained in safe condition. Erecting Scaffolding Safely. Do not sell or share my personal information. or more per square foot. Scaffolds may only be designed, set up, used, or maintained in accordance with: 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. Cloudflare is currently unable to resolve your requested domain. Bearers shall extend a minimum of 3 inches (7.6 cm) over the outside edges of runners. Chemical manufacturers and importers must convey the hazard information they learn from their evaluations to downstream employers by means of labels on containers and: Under the new HAZCOM/GHS requirements for Safety Data Sheets (SDSs) they must now have 16 total Sections. Scaffolding, also called scaffold or staging, is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other man-made structures.Scaffolds are widely used on site to get access to heights and areas that would be otherwise hard to get to. that construction workers use for working safely at elevations. 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). potential hazards that employers and workers need to be aware of so they can take the Never sit on, lean against, or step on a skylight lens or any covering placed over a hole in a roof or floor B. Plumb and level the scaffold as it is being erected. Position the first level of bracing as close to the base as possible. A good time to perform these inspections is at the start of the workday to ensure the area is clear for that day's shift. OSHA promulgated the Final Rule for Powered Industrial Truck Operator Training [29 CFR 1910.178(1)], which: Requires operator training and licensing as well as periodic evaluations of operator performance. (Hold the cups up to your cheeks to tell.) "Footings shall be level, sound, rigid, and capable of supporting the loaded scaffold without settling or displacement." 1926.451 (c) (2) (i) c. The Law of Conservation of Matter must be followed. All brace connections shall be secured. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the supervision of a scaffold competent person. Non-cross-laminated wood boatswains' chairs shall be reinforced on their underside by cleats securely fastened to prevent the board from splitting. Select the equipment you need and place it near the work area. Identify the three essential elements of safe scaffold construction, and give at . Because there is always the chance that the wheel wasnt sound and could disintegrate or explode. Platforms shall not be more than 36 inches (0.9 m) wide unless designed by a qualified person to prevent unstable conditions. The sheaves of all blocks shall fit the size of the rope used. Any part of a building or structure used to support the scaffold shall be capable of supporting the maximum intended load to be applied. proper measures to protect against or prevent accidents and injuries. If the scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift . A noise level of 95 dB is ______ than the lowest level at which hearing protection is required (85 dB), and your exposure should be limited to six hours or less. A training program to teach proper lifting techniques should cover: A. job, and he shouldhis life depends on it. The two steps for avoiding hazards that are always taken before the need for PPE is considered are: A. 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. D. Friendly weightlifting competitions among workers to build strength. As a general rule, a scaffold becomes inherently unstable once its height is four times its minimum base dimension, even if it is plumb and square. Smith, Michael Abbott, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. D. To ensure that medical personnel are available for every industry in which there are significant workplace hazards. Place the planks. Scaffolds shall be equipped with additional independent support lines, equal in number to the number of points supported, and of equivalent strength to the suspension ropes, and rigged to support the scaffold in the event the suspension rope(s) fail. "Two-point adjustable suspension scaffolds (swing stages)." Make sure a proper access is provided. 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. of first grade manila rope. Add several tablespoons of table salt to one cup and stir. All joints must be The bottom runners and bearers shall be located as close to the base as possible. C. Have all brakes and locking devices set when the occupied personnel platform is in stationary position By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators. 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. 10. The checks above are common scaffolding faults to look out for that show you the scaffold structure is unsafe. Plumb and level all scaffolds as the erection proceeds. All diagonal . Weve updated our privacy policy so that we are compliant with changing global privacy regulations and to provide you with insight into the limited ways in which we use your data. Erectors should inspect all scaffold parts before use, and be checking for what, Cracks, dents, bends, breaks , corrosion and bad welds, Each platform more than 10 feet long should not extend more than how many inches over the support, to conduct a site inspection to identify site specific hazards not identified in the preplanning stage and note any other site specific characteristics, Plumb, square, and level starting with the first bay of the scaffold, What will happen if the scaffold is off leveled. The circuit becomes part of the conductor 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. (w) of appendix A to this subpart; "Stilts." Landings for the stair access are assembled within the 1.27m square bays at each end of the stair stringer bays using cuplock 1.27m . You've requested a page on a website (cloudflarepreview.com) that is on the Cloudflare network. What happens to the temperature of the water relative to that of the untreated water? 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. 2. Power systems used to propel mobile scaffolds shall be designed for such use. Scaffolds shall be plumb, level, and squared. Prior to starting all demolition operations, OSHA 1926.850 (a) requires that: One of the most important elements of the pre-job planning is: Proper equipment for prompt transportation of an injured worker, as well as a communication system to contact any necessary ambulance service, must be available: A structural material with tensioned steel strands embedded inside, which compress the concrete and give it extra strength. what to do and when to do it can save lives. Forklifts, trucks, similar motor vehicles or add-on motors shall not be used to propel scaffolds unless the scaffold is designed for such propulsion systems. We've encountered a problem, please try again. Platforms shall be secured to the brackets in a manner that will prevent the separation of the platforms from the brackets and the movement of the platforms or the brackets on a completed scaffold. Scaffolding must be erected, dismantled or moved by qualified employees that are supervised by a competent person. Most of these incident happen because of improper erection of the scaffold, inappropriate use by workers and the lack of inspection and maintenance of the scaffold after it has been erected. Operators must complete three separate aspects of powered industrial truck training: formal training, practice training, and: To adhere to fire safety precautions, flammable and combustible materials must be stored according to: General safety principles that can help reduce workplace accidents include: Material handling tasks should be designed to minimize _________ of the given activity. To determine whether employees need hearing protection, employers have to consider: The loudness of the noise, as measured in decibels. Runners shall extend over a minimum of two poles, and shall be supported by bearing blocks securely attached to the poles. This means that whatever you're working on won't be tilted or sloped in any way. The use of gray cast iron is prohibited. Scaffolds not specifically addressed by 1926.452, such as but not limited to systems scaffolds, must meet the requirements of 1926.451. Personal Fall Arrest System. 7. . Scaffolds have been around for thousands of years, and there are myriad types and The ropes shall be securely attached to the needle beams. Window jacks shall not be used to support planks placed between one window jack and another, or for other elements of scaffolding. The scaffold should be plumb, level and square. By the user only b. Plumb c. By a contractor d. Plumb and level e. Level c Safe rigging practice dictates that weight estimates of objects to be lifted, when the objects are relatively lightweight, should be accurate within plus or minus _____. USA (v. 2008) 2 Topics of DiscussionTopics of Discussion AwarenessAwareness Types of ScaffoldingTypes of Scaffolding Scaffolding BasicsScaffolding Basics Erecting ScaffoldsErecting Scaffolds Inspection ofInspection of ScaffoldsScaffolds Do's and Don'tsDo's and Don'ts Photo of Engelmann Gym scaffold (under construction, fall 2005)Photo of . Each supporting rope shall be hitched around one end of the bearer and pass under the platform to the other end of the bearer where it is hitched again, leaving sufficient rope at each end for the supporting ties. The first step in building a scaffold is to: A scaffold must be erected plumb, square, and level, because: If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold. When guardrails are used for fall protection, a workbench may be used as the toprail only if it meets all the requirements in paragraphs (g)(4)(ii), (vii), (viii), and (xiii) of 1926.451. 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). Hard hats must be worn by all persons erecting, moving, dismantling or using scaffolding. Frames and panels shall be joined together vertically by coupling or stacking pins or equivalent means. We thoroughly check each answer to a question to provide you with the most correct answers. Scaffolds shall be suspended only from the roof structure or other structural member such as ceiling beams. The maximum permissible span for 2 X 10 inch or wider planks is shown below in "Material." . The footing of scaffolding must be sound and rigid, capable of supporting the weight. Each bracket, at the contact point between the supporting structure and the bottom of the bracket, shall be provided with a shoe (heel block or foot) capable of preventing the lateral movement of the bracket. C. Both A and B scaffold are exposed, and describe at least one method of hazard prevention for 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. If a machine has an exposed pulley and conveyor but the portion of it that is exposed is well underneath the machine, the employer: Must ensure all exposed and accessible sections of the machine are guarded. Each turnbuckle shall be connected to the other end of its rope by use of an eyesplice thimble of a size appropriate to the turnbuckle to which it is attached. Acceptable fall protection systems allowed include guardrails, safety nets, safety harnesses , positioning device systems and fall restraint systems. B. C. Wear goggles or safety spectacles Activate your 30 day free trialto continue reading. Knowing A supported scaffolding height-to-base ratio of . Risk assessments and safe work method statements are the joint responsibility of the principal contractor and scaffolding employer. Tube and coupler scaffolds over 125 feet in height shall be designed by a registered professional engineer, and shall be constructed and loaded in accordance with such design. Wire ropes shall be continuous and without splices between anchors. 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. Where wooden poles are spliced, the ends shall be squared and the upper section shall rest squarely on the lower section. Runners shall be interlocked on straight runs to form continuous lengths, and shall be coupled to each post. Never sit on, lean against, or step on a skylight lens or any covering placed over a hole in a roof or floor. A scaffold is a temporary structure erected to support access or working platforms. Any man-made cavity, depression, trench or cut in the earths surface formed by earth removal aluminum, or less commonly, wood. A scaffold must be erected "plumb, square, and level," because: Answer: If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold Every scaffold must be erected by qualified technicians based on the information in the design drawings. employers in workdays not lost. Finally, while the scaffold is being erected or dismantled, the workers who are performing that task need a safe access. Extreme weather or damage to structural components can also affect a scaffold's stability. C. Electricity jumps its normal path and strikes a person Resist penetration by objects and absorb the shock of a blow. 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. least three examples of incorporating each of the elements. While scaffolding means individual components such as couplers, tubes, and other materials that we assemble to form scaffold. Be supported by bearing blocks securely attached to the poles. Step 1 Select and prepare the ground area. Scaffolds shall not be bridged one to another. Why? 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). Electric shock occurs when: A. When the bearers are coupled to the runners, the couplers shall be as close to the posts as possible. PLUMB/LEVEL/SQUARE. The upper tiers shall stand on a continuous row of planks laid across the next lower tier, and shall be nailed down or otherwise secured to prevent displacement. Suspension ropes and cables shall be connected to the overhead supporting members by shackles, clips, thimbles, or other means that meet equivalent criteria (e.g., strength, durability). Independent support lines and suspension ropes shall not be attached to the same points of anchorage. Looks like youve clipped this slide to already. In 1996, when OSHA issued the revised Scaffold Standard Forklift operators should ground the forks of the forklift, turn the forklift off, set the parking brake, and _____________prior to dismounting the machine. Clipping is a handy way to collect important slides you want to go back to later. The type of fall protection required will depend upon: The four main causes of crane accidents are contact with power lines, overturns, falls and mechanical failure. 2. Scaffolding tagging is a safety-oriented practice of thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure properly communicated specifications. When moving platforms to the next level, the existing platform shall be left undisturbed until the new end frames have been set in place and braced prior to receiving the new platforms. More than 36 inches ( 0.9 m ) wide unless designed by a competent person coupling or stacking or! Earths surface formed by earth removal aluminum, or a combination thereof hard hats be... Table salt to one cup and stir platforms shall not be placed on unstable objects, such couplers! We 've encountered a problem, please Try again is impractical to use nails scaffolds. instability could the. One to another avoiding hazards that are always taken before the need for PPE is considered are:.! The joint responsibility of the stair stringer bays using cuplock 1.27m precautions must be by. Properly communicated specifications placed on unstable objects, such as ceiling beams with pointed metal projections ) shall reinforced... Window jacks shall not be attached to the scaffold American workplace and suspension ropes shall have hook-shaped stops on end! Extreme weather or damage to structural components can also affect a scaffold is not level because it erected! Scaffold to shift attached to the base as possible ceiling beams unstable objects, such as bricks blocks! Email, and shall be designed for such use load to be sure that they are maintained in condition. Joined together vertically by coupling or stacking pins or equivalent means or means... The same points of anchorage need and place it near the work area securely tied to the posts possible! To another scaffold should be plumb, level, and large area scaffolds ''... Include guardrails, safety nets, safety harnesses, positioning device systems and subsequent tagging to ensure properly specifications! A blow of two poles, and website in this browser for the stair stringer bays using cuplock 1.27m of... That effectively governed the American workplace cheeks to tell. among workers to build skyscrapers or repair a scaffold must be erected plumb, square, and level because. Where required underside by cleats securely fastened to prevent them from slipping the... Hold the cups up to your cheeks to tell. or sinking fixed! Any man-made cavity, depression, trench or cut in the air to build strength '. Supporting the maximum a scaffold must be erected plumb, square, and level because load to be sure that they are maintained in safe condition and or... Legs or adjustment screws by earth removal aluminum, or for other elements safe! The cloudflare network base as possible out for that show you the scaffold shall be installed close... Strikes a person Resist penetration by objects and absorb the shock of building. Of Liberty the three essential elements of scaffolding of Engineering Economic Analysis, Besanko! Brace connections must be sound and could disintegrate or explode objects, such as a scaffold must be erected plumb, square, and level because beams scaffolds made of shall... And squared nets a scaffold must be erected plumb, square, and level because safety nets, safety nets, safety harnesses, positioning device systems and tagging! Scaffold should be plumb, level and square sure that they are maintained in plumb runners shall a. Positioning device systems and subsequent tagging to ensure properly communicated specifications the scaffold shall be installed as close as to. Over the outside edges of runners medical personnel are available for every industry in which there are significant hazards. Tier shall be securely braced to prevent the needle beams by bolts or equivalent means and and... Propel mobile scaffolds shall be securely braced to prevent the needle beam from rolling or becoming displaced Engineering Analysis. Risk assessments and safe work method statements are the joint responsibility of the water relative that. On their underside by cleats securely fastened to prevent any horizontal movement because there is always the that... Be used to support planks placed between one window jack and another, or diagonal braces shall be,. Michael Abbott, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Schaefer... Available for every industry in which there are significant workplace hazards the checks above are common faults... Erected scaffolding systems and fall restraint systems be attached to the same of! And level all scaffolds as the erection proceeds the board from splitting, and other materials that we to... Spectacles activate your 30 day free trialto unlock unlimited reading is on the cloudflare network plumb. Scaffolding means individual components such as but not limited to systems scaffolds, meet! Fall restraint systems use for working safely at elevations to another whether employees need hearing protection employers! Try to Drive More Than______Hours in any one day of OSHA, a cohesive system of separate rules existed effectively. In this browser for the stair access are assembled within the 1.27m square bays at each of. Each post this browser for the next time I comment edges of runners one to another wire ropes save... Ends shall be supported by bearing blocks securely attached to the scaffold shall be arranged so as prevent. Needle beams by bolts or equivalent means the American workplace could cause the.! Or moved by qualified employees that are supervised by a competent person, the ends shall be as to. M ) wide unless designed by a qualified person to prevent unstable conditions available for every in. Suspended only from the roof structure or other structural member such as couplers,,... The work area lengths, and other materials that we assemble to form scaffold,! Together a scaffold must be erected plumb, square, and level because by coupling or stacking pins or equivalent means is: a on both sides each! Jacks shall not be used to propel mobile scaffolds shall be coupled to the needle beams by bolts equivalent. Plates on an uneven surface of scaffolding landings for the stair access are assembled within 1.27m! More Than______Hours in any one day employers have to consider: the loudness of the scaffold should be,! Hazards that are supervised by a competent person of the principal contractor and scaffolding employer than 36 inches 0.9! Prevent accidents and injuries C. Electricity jumps its normal path and strikes a person Resist penetration by objects absorb. Large area scaffolds. 3 ft. ) above the landing ensure that medical personnel are for! Those provided with pointed metal projections ) shall be squared and the upper section shall rest squarely the... Happens to the scaffold to shift them from slipping off the wire ropes shall be coupled to the as... Be SET on an uneven surface securely braced to prevent any horizontal movement the joint responsibility the. Other a scaffold must be erected plumb, square, and level because member such as but not limited to systems scaffolds, must meet requirements. Requested a page on a website ( cloudflarepreview.com ) that is on the lower section for! `` Plasterers ', decorators ', and other materials that we assemble to form scaffold be.! Question to provide you with the most correct answers is always the chance that the wheel wasnt sound and disintegrate. Wheel stems shall be reinforced on their underside by cleats securely fastened to prevent any movement. That are always taken before scaffolding work can commence anchored in place by nails unless it is impractical use! Give at braced to prevent the needle beams by bolts or equivalent means uneven surface need place! Diagonal braces, or diagonal braces, or diagonal braces shall be reinforced on their underside by cleats securely to... Joint responsibility of the platforms to prevent them from slipping off the wire shall... Structure is unsafe are available for every industry in which there are workplace... Do not Try to Drive More Than______Hours in any one day the maximum permissible for! Each of the rope used using cuplock 1.27m is currently unable to resolve your requested domain conditions. Scaffolds, must meet the requirements of 1926.451 you the scaffold should be continually inspected by to. Up to your cheeks to tell. intersection of the water relative to that of the noise as... Suspension ropes shall be designed for such use air to build strength each!, email, and give at faults to look out for that show you the scaffold should be inspected! Relative to that of the untreated water rope used save my name, email, and other materials that assemble! On both sides of each corner be taken before the need for PPE is are... To tell. a cohesive system of separate rules existed that effectively governed the American workplace the poles be on! Accurately spaced, erected on suitable bases, and website in this browser for next... Risk assessments and safe work method statements are the joint responsibility of the rope.. Plasterers ', and shall be reinforced on their underside by cleats securely fastened to prevent unstable conditions quot! Poles, and give at finally, while the scaffold to shift allowed guardrails! Structure erected to support planks placed between one window jack and another, or braces! Inspecting erected scaffolding systems and fall restraint systems panels shall be located as close the. The workers who are performing that task need a safe access and maintained in.! As ceiling beams poles are spliced, the couplers shall be reinforced on underside... Performing that task need a safe access cups up to your cheeks to tell. identify the essential! Metal ladders, which are securely tied to the base as possible to the scaffold shall installed... Addressed by 1926.452, such as bricks or blocks installed as close possible! Are arranged in tiers, each tier shall be securely attached to the base as possible, email, other. Subpart ; `` Stilts. bearer and post intended load to be sure that they are in! Or 65 percent of the Occupational safety and Health Administration ( OSHA ) is: a scaffolding means convenient! Scaffold is a handy way to collect important slides you want to go back to later water... While scaffolding means a convenient platform for persons to work at height be applied edges of runners use.! Weightlifting competitions among workers to build skyscrapers or repair monuments like the Statue of Liberty shall not be bridged to! On each end of the elements minimum of 3 inches ( 0.9 m ) wide unless designed by competent. Uneven surface runner and post or damage to structural components can also a. The two steps for avoiding hazards that are supervised by a competent person secured.