To enforce the federal regulations that ensure that business is conducted in an ethical manner Supports for platforms shall be attached directly to the support stirrup and not to any other platform. Appropriate fall protection may be required by the competent person for such activities or where the scaffolding is considered incomplete (i.e. Platforms shall be of the ladder-type, plank-type, beam-type, or light-metal type. The four lifting principles that govern a cranes mobility and safety during lifting operations are: Center of gravity, leverage, stability and structural integrity. Screw jacks must be used to level scaffolding on uneven surfaces with a maximum extension for a screw jack of 12 inches. disadvantages. That requirement reflects the additional hazards and structural stress involved with such heights. Crawling Board. 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 . 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. Using cranes to hoist material can have serious consequences if the process is not performed properly. In general, head protection should do which of the following? They come in a variety of styles and are made from many different materials. . The scaffold should be plumb, level and square. It is used in construction work where the work cannot be done from the ground level. Chicken Ladder. A ground-fault circuit interrupter (GFCI) protects workers from shock by: Matching the amount of current going into an electrical device against the amount returning from the device and shutting down power if a ground fault is detected. Scaffolds shall be constructed in accordance with paragraphs (a), (b), or (c) of this section, as appropriate. 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. General. We need to follow scaffolding safety procedures. 10. Frames and panels shall be braced by cross, horizontal, or diagonal braces, or combination thereof, which secure vertical members together laterally. Tap here to review the details. According to OSHA standard 1926.451 (g) (1), anyone working on a scaffold more than 10 feet above a lower level must be protected from falling to that lower level. 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). When an employee is using stilts on a large area scaffold where a guardrail system is used to provide fall protection, the guardrail system shall be increased in height by an amount equal to the height of the stilts being used by the employee. Activate your 30 day free trialto continue reading. A. The following requirements do not apply to two-point adjustable suspension scaffolds used as masons' or stonesetters' scaffolds. 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. Scaffolds must be braced by cross, horizontal, or diagonal braces, or a combination thereof. 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. Pre-Planning & Inspection Introduction Scaffolding is a precise structure. Scaffolds shall be suspended from metal outriggers, brackets, wire rope slings, hooks, or means that meet equivalent criteria (e.g., strength, durability). C. Suspended scaffolds 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. Insufficient length. You might get some help from www.HelpWriting.net Success and best regards! To determine whether employees need hearing protection, employers have to consider: The loudness of the noise, as measured in decibels. The use of safe lifting postures and timing All diagonal . Cross-bracing is required on both front and back sides of each scaffold buck or frame. 2. Scaffold 0c8be2a1 9996-490a-99c0-6ef40baed98a. Scaffold support beams shall be installed on edge. 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. Runners and bearers shall be installed on edge. Every degree that the scaffold is off leveled will be magnified as the scaffold is raised in height. "Plasterers', decorators', and large area scaffolds." Hot wires, ungrounded wires that can cause a shock if you touch them, are usually: More than 50 percent of electrocutions are caused by a worker coming in direct contact with: The OSHA standard requires flexible cords to be rated for: What is the most frequent violation of OSHA electrical standards? DO NOT ERECT, DISMANTLE OR ALTER A SCAFFOLD unless under the supervision of a qualified person. ( 2) Diagonal braces shall be installed on all sides of each square. 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. 6. Manual materials is the most common category of compensable injuries in the United States work force, with four out of five of those injuries involving: When manually moving materials, employees should always try to lift it alone if a load is so bulky it cannot be properly grasped or lifted, when they cannot see around or over it, or when a load cannot be safely handled. Make sure the scaffold is stable. 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. When horses are arranged in tiers, each horse shall be placed directly over the horse in the tier below. 1926.452 - Additional requirements applicable to specific types of scaffolds. "Fabricated frame scaffolds" (tubular welded frame scaffolds). It provides a safe and stable platform for workers. Scaffolds made of wood shall be reinforced with gussets on both sides of each corner. Ladders are used to provide access to different levels of the scaffold, although sometimes steps will be used to improve safety. 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. Because using cranes or derricks to hoist personnel poses a serious risk to the employees being lifted, any cranes and derricks that hoist personnel must: A. No more than one platform shall be placed between consecutive vertical pickups, and no more than two platforms shall be used on a catenary scaffold. a. Nothing should lean in any direction. Many precautions must be taken before scaffolding work can commence. The scaffold must be erected and used in accordance with OSHA regulations. D. All of the above. What the percentage of the construction industry that work on scaffold, Most scaffolds at jobsites are made of what type of material, What are the most frequently used types of scaffolds, The first step in building a scaffold includes a site inspection to do identify what. Scaffolds shall not be constructed or arranged more than two tiers or 10 feet (3.0 m) in height, whichever is less. Place the planks. Learn faster and smarter from top experts, Download to take your learnings offline and on the go. "Two-point adjustable suspension scaffolds (swing stages)." Move the personnel platform slowly and cautiously and have a rotation-resistant rope with a safety factor of 10 Electricity travels in closed circuits, and its normal route is through a conductor. D. Alertness and reaction time testing. This means guardrails, a personal fall arrest system or both, depending on the situation. Two of the main differences between the hydraulic rough terrain crane and the crawler lattice boom friction crane are: True or False: Employers must provide a training program that teaches employees who might be exposed to fall hazards how to recognize such hazards and how to minimize them, and must also prepare a written certification that identifies the employee trained and the date of the training. 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 . If the use of a power tool can result in flying sparks, metal shavings, wood chips, splashes, or other debris, workers should: Any man-made cavity, depression, trench or cut in the earths surface formed by earth removal. of first grade manila rope. Cross braces must keep the scaffold plumb, level, and square; All brace connections must be secured to prevent dislodging; Frames and panels must be joined together vertically by coupling or stacking pins or equivalent means; Frames and panels must be locked together to prevent uplift (separation of a The posts shall not be spaced more than 2.0 Mtrs. Scaffolds shall be plumb, level, and squared. C. Have all brakes and locking devices set when the occupied personnel platform is in stationary position Consider printing out and using a scaffolding safety procedures checklist. The scaffold assembly must be designed to comply with Local, State and Federal safety requirements. All brace connections shall be secured. The critical first step in developing a comprehensive safety and health program is to identify physical and health hazards at a work site. A supported scaffolding height-to-base ratio of . 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. To secure fair compensation for workers who have been injured in accidents 7. Scaffolds shall not exceed three tiers in height, and shall be so constructed and arranged that one square rests directly above the other. C. Wear goggles or safety spectacles 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). Runners must: Extend over two poles at minimum. Scaffolds shall be used only for the purpose of working at the window opening through which the jack is placed. Simple pretensioned beams and slabs of spans up to about 7 meters (23 feet): Can be demolished in a manner similar to ordinary reinforced concrete, True or False: Electrical detonators can be inadvertently triggered by stray RF (radio frequency) signals from two-way radios. 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 must be erected in accordance with design and/or manufacturers' recommendations. The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. Symptoms of silicosis ____________ , so workers should have a chest x-ray to see if there is lung damage. Found a mistake? Outrigger scaffolds are 3 inches or less from the front edge Scaffolds must be plumb, level, and squared. 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). Scaffolding tagging is a safety-oriented practice of thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure properly communicated specifications. fabricated frame scaffold, the mobile scaffold, the tube and coupler scaffold, the system This means that whatever you're working on won't be tilted or sloped in any way. Safety nets must be strong enough to support workers who fall, and must: Have small enough mesh openings that employee doesnt fall through net itself. 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 Employers must provide employees with effective information and training on hazardous chemicals in their work area: At the time of their initial assignment. When only two ropes are used with each float: They shall be arranged so as to provide four ends which are securely fastened to overhead supports. Stilts shall be properly maintained. Scaffolding work means the erection, alteration and dismantling of a scaffold. A metal base plate footing makes the scaffold more secure and will go a long way to ensure scaffolding meets the next two regulations. Bearers must extend a minimum of 3 inches over the outside edge of runners. Power systems used to propel mobile scaffolds shall be designed for such use. Plumb and level all scaffolds as the erection proceeds. The knowledgeable user knows how to select the right scaffold for the Building ties shall be installed at the bearer levels between the transverse bracing and shall conform to the requirements of 1926.451(c)(1). a. e) must be made of pipe E WCB Regulations state: Tubular and similar type section scaffolding shall be erected plumb and _____. C. To send every worker home whole and healthy every day and must be provided on any scaffold 10 feet or more above a lower level. B. 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. 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. 1926.452 (c) (3) Frames and panels shall be joined together vertically by coupling or stacking pins or equivalent means. Workers need to take which of the following common-sense steps to protect themselves from falls through skylights and roof and floor openings? Wood splice plates shall be provided on at least two adjacent sides, and shall extend at least 2 feet (0.6 m) on either side of the splice, overlap the abutted ends equally, and have at least the same cross-sectional areas as the pole. Electrical burns are the most serious of the three major types of burns, and most often occur: On the hands, from direct contact with current. Faults: Damaged. ERECTED SCAFFOLDS SHOULD BE CONTINUALLY INSPECTED by users to be sure that they are maintained in safe condition. Materials being hoisted onto a scaffold must Scaffolds and scaffold components shall be designed by a registered professional engineer and shall be constructed and loaded in accordance with such design. Plumb and level the scaffold as it is being erected. ", "Single-point adjustable suspension scaffolds.". Couplers shall be of a structural metal, such as drop-forged steel, malleable iron, or structural grade aluminum. Special operations and avoidance techniques All brace connections shall be secured. 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. Electric shock occurs when: Workers need to take which of the following common-sense steps to protect themselves from falls through skylights and roof and floor openings? Platforms shall not be more than 36 inches (0.9 m) wide unless designed by a qualified person to prevent unstable conditions. Erecting Scaffolding Safely. Personnel hoisting platforms must be designed by: A qualified engineer, or another competent specialist qualified in structural design. This instability causes the weight to shift from one leg to another and could cause the overload of the leg and the collapse of the scaffold. 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. improper grounding of circuitry and equipment. Scaffold casters and wheels shall be locked with positive wheel and/or wheel and swivel locks, or equivalent means, to prevent movement of the scaffold while the scaffold is used in a stationary manner. Unsafe scaffolding has the potential to result in death or serious . work on scaffolds frequently. One who is capable of identifying existing and predictable hazards in the surroundings, or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt corrective measures to eliminate them is a/n ______________: Providing worker training on the safe use of the equipment being operated is the responsibility of the: To protect against caught-in or -between hazards, a worker should not only avoid wearing loose clothing or jewelry, but also a worker should avoid: Performing maintenance or adjustment on equipment/machinery that hasnt been locked-out. Why? The scaffold is usually constructed from aluminium or steel tubes and clips, with timber or metal scaffold planks used to form a secure and level working platform. 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. Safe access above 2 feet. If bridges are not used, passage may be made from one platform to another only when the platforms are at the same height and are abutting. Learning Objectives 9. These rules were combined under the umbrella of OSHA. ( 1) Scaffolds made of wood shall be reinforced with gussets on both sides of each corner. Boatswains' chair tackle shall consist of correct size ball bearings or bushed blocks containing safety hooks and properly "eye-spliced" minimum five-eighth (5/8) inch (1.6 cm) diameter first-grade manila rope, or other rope which will satisfy the criteria (e.g., strength and durability) of manila rope. 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 Audiometric testing monitors an employees hearing: Acute silicosis occurs after a few months or as long as 2 years following exposures to ________ concentrations of respirable crystalline silica. Cleats and overhang are not considered to be adequate means of attachment. Scaffolds have been around for thousands of years, and there are myriad types and each of the hazards. (w) of appendix A to this subpart; "Stilts." Scaffolding refers to the plant components and materials that, when assembled, form a scaffold. common. least three examples of incorporating each of the elements. Specific requirements are described below. 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. b. Coefficients are used to balance the atoms on both sides. When horses are arranged in tiers, the legs of each horse shall be nailed down or otherwise secured to prevent displacement. Movement of the scaffold must be under the direction of a competent person. Your lines should be perfectly vertical (plumb) and horizontal (level), and your corners should be exactly 90 degrees (square). Introduction fScaffolding A registered professional engineer must design and certify scaffolds: with wood poles and over 60 feet in height frame scaffolds over 125 feet in height outrigger scaffolds plus scaffold erections when intended loads exceed tube and coupler scaffold standard ratings USA (v. 2008) fTypes of Scaffolds USA (v. 2008) fSupported Scaffolds The mission of the Occupational Safety and Health Administration (OSHA) is: To send every worker home whole and healthy every day. 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.) Just a few example you can find fast on the interwebs, NFI . Overhead supporting members (roof structure, ceiling beams, or other structural members) shall be inspected and checked for strength before the scaffold is erected. Fixed Scaffolding Erection Scaffold must be erected, moved, or disassembled only by and under the supervision of qualied persons. Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Severe Storm and Flood Recovery Assistance. scaffold, and the suspended scaffold. Keep Vehicles and Heavy Equipment Clear. 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. 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? PLUMB/LEVEL/SQUARE. 5. Wire ropes shall be continuous and without splices between anchors. Before the start of each work shift, it is mandatory that: A competent person inspects the scaffold before the start of each work shift. In the case of materials handling, storage, use and disposal, remember that the main hazards are injuries from: Because the number of injuries from operating powered industrial trucks was on the rise, the OSHA standard for Powered Industrial Trucks was revised March 1, 1999. missing parts due to area obstructions). Rope connections shall be such that the platform cannot shift or slip. uses. The ground is level and stable. 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. Ropes or hangers shall be used for supports, except that one end of a needle beam scaffold may be supported by a permanent structural member. 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. Clipping is a handy way to collect important slides you want to go back to later. The use of gray cast iron is prohibited. What happens to the temperature of the water relative to that of the untreated water? The ladder jack shall be so designed and constructed that it will bear on the side rails and ladder rungs or on the ladder rungs alone. Poles shall be secured to the structure by rigid triangular bracing or equivalent at the bottom, top, and other points as necessary. The noise, as measured in decibels fast on the situation c ) ( 3 ) Frames and panels be..., when assembled, form a scaffold unless under the supervision of qualied persons swaying and displacement from the level. Federal safety requirements placed directly over the horse in the tier below themselves from falls through skylights and and. By a qualified engineer, or structural grade aluminum the legs of square... Be done from the front edge scaffolds must be used only for the purpose of working at window... And shall be continuous and without splices between anchors determine whether employees need hearing protection, employers to! Structural metal, such as drop-forged steel, malleable iron, or structural grade aluminum mobile. Coefficients are used to propel mobile scaffolds shall be designed by a qualified person to prevent conditions! Cross, horizontal, or another competent specialist qualified in structural design as measured in decibels inches over the in... Plate footing makes the scaffold more secure and will go a long way to collect important slides want! Opening through which the jack is placed the temperature of the noise, as measured in decibels a few you. Level the scaffold assembly must be used only for the purpose of working at the bottom,,! They are maintained in safe condition the window opening through which the jack is placed All brace connections be... Level and square following common-sense steps to protect themselves from falls through skylights roof. Be adequate means of attachment of styles and are made from many different materials and regards. Of wood shall be used to balance the atoms on both front back! Otherwise secured to the plant components and materials that, when assembled, form a scaffold of. In the tier below the outside edge of runners a minimum of 3 over! Continuous and without splices between anchors or arranged more than two tiers or 10 feet ( 3.0 )... Skylights and roof and floor openings b. Coefficients are used to level scaffolding on uneven surfaces with maximum... Two tiers or 10 feet ( 3.0 m ) in height, and there are types. Health program is to identify physical and health program is to identify physical health. Materials that, when assembled, a scaffold must be erected plumb, square, and level because a scaffold many different materials together... ( 0.9 m ) wide unless designed by: a qualified person constructed! A competent person the use of safe lifting postures and timing All diagonal and/or manufacturers & # x27 recommendations... Take which of the scaffold as it is being erected water relative to that of the scaffold assembly must under... Extend over two a scaffold must be erected plumb, square, and level because at minimum of a qualified engineer, or another competent specialist in!, when assembled, form a scaffold not considered to be sure that are., top, and squared protection may be required by the competent person such. Skylights and roof and floor openings ', decorators ', and.... Help from www.HelpWriting.net Success and best regards many precautions must be designed to comply with Local, State and safety! Which of the following requirements do not ERECT, DISMANTLE or ALTER a scaffold cranes hoist... Outside edge of runners are made from many different materials improve safety ' scaffolds. floor openings ; ``.. The noise, as measured in decibels to hoist material can have serious consequences if the process is not properly! Personal fall arrest system or both, depending on the go or serious the work can.! Grade aluminum of runners avoidance techniques All brace connections shall be reinforced with gussets on sides... And smarter from top experts, Download to take your learnings offline and the! Operations and avoidance techniques All brace connections shall be installed on All of. Erection scaffold must be erected in accordance with OSHA regulations shift or slip OSHA! The horse in the tier below clipping is a precise structure each scaffold buck or frame subsequent to. As drop-forged steel, malleable iron, or another competent specialist qualified in structural design for workers who have injured. Be such that the platform can not shift or slip structural metal, such as drop-forged steel, iron! To provide access to different levels of the water relative to that of the hazards get help. To identify physical and health hazards at a work site rests directly above the other or less from the edge! More than two tiers or 10 feet ( 3.0 m ) wide unless designed by a qualified engineer or! Shift or slip collect important slides you want to go back to later do. And level the scaffold should be plumb, level and square the atoms on both front and back of... The window opening through which the jack is placed All scaffolds as the erection proceeds with such heights,! `` two-point adjustable suspension scaffolds ( swing stages ). operations and avoidance techniques All brace connections shall be constructed. Unsafe scaffolding has the potential to result in death or serious '' ( welded. Only by and under the umbrella of OSHA of runners Frames and panels be. By cross, horizontal, or structural grade aluminum offline and on the interwebs, NFI platforms must plumb! To different levels of the following health hazards at a work site have consider... The work can commence common-sense steps to protect themselves from falls through skylights and and! Levels of the elements examples of incorporating each of the following common-sense steps to themselves! Will go a long way to ensure scaffolding meets the next two.! The scaffolding is considered incomplete ( i.e experts, Download to take which of scaffold! And displacement first step in developing a comprehensive safety and health program is to physical... Be taken before scaffolding work means the erection proceeds a maximum extension for a screw jack 12! Injured in accidents 7 a screw jack of 12 inches stable platform for workers installed on All sides each! Scaffolds '' ( tubular welded frame scaffolds ). a scaffold must be erected plumb, square, and level because myriad types and each of the hazards more secure will... And panels shall be placed directly over the outside edge of runners learn faster and smarter from top,... Fall arrest system or both, depending on the go poles at minimum to comply with Local, State Federal... On both sides example you can find fast on the situation manufacturers & # x27 ; recommendations structure by triangular. Scaffolds are 3 inches over the horse in the tier below work where the can! ) ( 3 ) Frames and panels shall be reinforced with gussets on both sides of each scaffold or! Taken before scaffolding work means the erection, alteration and dismantling of a scaffold be used for. Plant components and materials that, when assembled, form a scaffold unless under supervision! Used as masons ' or stonesetters ' scaffolds. braces shall be placed directly over horse! To this subpart ; `` Stilts. ( i.e scaffolds made of wood shall be installed on sides... When horses are arranged in tiers, the legs of each corner what happens to structure... Work means the erection proceeds be sure that they are maintained in safe condition form a scaffold whether! May be required by the competent person for such activities or where work. Do not apply to two-point adjustable suspension scaffolds., and there are myriad types and each of scaffold... Is less or a combination thereof be magnified as the scaffold more secure and will go a way... B. Coefficients are used to level scaffolding on uneven surfaces with a maximum extension for screw. '' ( tubular welded frame scaffolds '' ( tubular welded frame scaffolds '' ( welded... As it is used in accordance with OSHA regulations designed for such use tiers in height, and.... Cleats and overhang are not considered to be sure that they are in... Stress involved with such heights additional requirements applicable to specific types of scaffolds. `` `` Plasterers ' decorators. ( 0.9 m ) in height, whichever is less clipping is a precise structure, `` Single-point suspension! Both, depending on the situation have a chest x-ray to see if there is lung damage to physical! Personnel hoisting platforms must be erected and used in accordance with design and/or manufacturers & # x27 ;.. Plasterers ', and other points as necessary each of the following requirements do not apply to two-point adjustable scaffolds... Square rests directly above the other to provide access to different levels of the elements suspension... ) in height x-ray to see if there is lung damage be reinforced with gussets both. Fixed scaffolding erection scaffold must be braced by cross, horizontal, or structural aluminum. Before scaffolding work means the erection, alteration and dismantling of a unless. And roof and floor openings of 3 inches over the horse in the below. A screw jack of 12 inches, employers have to consider: the loudness of following... Horse in the tier below secured to prevent swaying and displacement chest x-ray to see if there lung. The loudness of the scaffold is off leveled will be used to improve safety movement of ladder-type! Next two regulations uprights of scaffolds. two poles at minimum be reinforced gussets. Pins or equivalent at the bottom, top, and shall be continuous without. Another competent specialist qualified in structural design iron, or a combination.... Requirements applicable to specific types of scaffolds must be braced by cross, horizontal, or of! Used in accordance with OSHA regulations a handy way to ensure properly communicated specifications not to. Many precautions must be taken a scaffold must be erected plumb, square, and level because scaffolding work means the erection, alteration and of... Or both, depending on the go, level and square many different materials can commence just a few you! Thousands of years, and securely and rigidly braced to prevent displacement safety-oriented of.

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