a scaffold must be erected plumb, square, and level because

2. Two other errors mentioned in this module that often lead to trouble are: Improper maintenance and failure to conduct regular inspections. 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 It is used in construction work where the work cannot be done from the ground level. Scaffolds must be erected in accordance with design and/or manufacturers' recommendations. True or False: Once a fall protection device has been inspected by a competent person and deemed safe for use by an employee, it is up to the employee to inspect it regularly and ensure that it still meets OSHA requirements. That requirement reflects the additional hazards and structural stress involved with such heights. Using cranes to hoist material can have serious consequences if the process is not performed properly. Employers must: Ensure that the safety monitor is a competent person knowledgeable about fall protection. 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. Scaffold is not level because it was erected without base plates on an uneven surface. Outrigger scaffolds are 3 inches or less from the front edge Suspension scaffold rigging must at least 6 times the intended load. Clipping is a handy way to collect important slides you want to go back to later. 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.) No Free-standing scaffolds be higher than 4 times the minimum base dimension. for construction, the agency estimated that by protecting these millions of workers from Smith, Michael Abbott, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. 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. Pole scaffolds over 60 feet in height shall be designed by a registered professional engineer, and shall be constructed and loaded in accordance with that design. Just a few example you can find fast on the interwebs, NFI . Knowledge of the basic anatomy of the spine, muscles, and joints of the trunk 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. When horses are arranged in tiers, each horse shall be placed directly over the horse in the tier below. The footing of scaffolding must be sound and rigid, capable of supporting the weight. OSHA MODULE 5 Scaffolds Enjoy access to millions of ebooks, audiobooks, magazines, and more from Scribd. Scaffolds shall not be constructed or arranged more than two tiers or 10 feet (3.0 m) in height, whichever is less. The entire supporting structure shall be securely braced to prevent any horizontal movement. Workers need to take which of the following common-sense steps to protect themselves from falls through skylights and roof and floor openings? Outrigger beams fabricated in the shape of an I-beam or channel shall be placed so that the web section is vertical. Scaffolds and components must be able to support at least four times the intended load. B. 1926.452 (c) (3) Frames and panels shall be joined together vertically by coupling or stacking pins or equivalent means. A scaffold is a temporary structure that supports access or working platforms. Scaffolding must be erected, dismantled or moved by qualified employees that are supervised by a competent person. Yet, because of the nature of where and how it is used, scaffolding can present many potential hazards. 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. Folding type metal brackets, when extended for use, shall be either bolted or secured with a locking-type pin. True or False: Before the advent of OSHA, a cohesive system of separate rules existed that effectively governed the American workplace. . Place suitable sills and make sure there are no holes under the sills. DO NOT ABUSE OR MISUSE THE SCAFFOLD EQUIPMENT. OSHA 10-Hour Construction Course: Module 5 Scaffolds Page 1 of 22 Step 1 Select and prepare the ground area. Cross-bracing is required on both front and back sides of each scaffold buck or frame. The checks above are common scaffolding faults to look out for that show you the scaffold structure is unsafe. True or False: There is usually some form of warning before a cave-in. When two single-point adjustable suspension scaffolds are combined to form a two-point adjustable suspension scaffold, the resulting two-point scaffold shall comply with the requirements for two-point adjustable suspension scaffolds in paragraph (p) of this section. 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. "Plasterers', decorators', and large area scaffolds." Prevent An Expressway Emergency By Merging Without _____. 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 C. Any square or rectangular trench with a width that does not exceed 15 feet Runners shall extend over a minimum of two poles, and shall be supported by bearing blocks securely attached to the poles. C. Both A and B potential hazards that employers and workers need to be aware of so they can take the The scaffold must rest on a firm foundation, be plumb and braced to prevent swaying. Additional requirements applicable to specific types of scaffolds. 9. There are an estimated $90 million dollars lost because of . Plumb and level all scaffolds as the erection proceeds. Horizontally at each end and at 30 feet intervals measured from one end only. General. Window jacks shall not be used to support planks placed between one window jack and another, or for other elements of scaffolding. 5. Electrocution, electric shock, burns, indirect (e.g., a fall from a ladder). You do not have access to www.concreteconstruction.net. proper measures to protect against or prevent accidents and injuries. 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. 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 _____. B. Bamboo scaffolds bamboo sticks are still used in some Asian countries to erect large multistory structures. A scaffold is a temporary structure erected to support access or working platforms. In addition to the applicable requirements of 1926.451, the following requirements apply to the specific types of scaffolds indicated. 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. Faults: Damaged. Screw jacks must be used to level scaffolding on uneven surfaces with a maximum extension for a screw jack of 12 inches. The three main scaffold types are aerial lifts, supported scaffolds and: suspended scaffolds 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: -- Be placed on a firm foundation and be uniformly level within 1 percent of level grade 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. Platforms shall not extend outward beyond the base supports of the scaffold unless outrigger frames or equivalent devices are used to ensure stability. Ladders used to support step, platform, and trestle ladder scaffolds shall be placed, fastened, or equipped with devices to prevent slipping. 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. Never sit on, lean against, or step on a skylight lens or any covering placed over a hole in a roof or floor disadvantages. When two or more scaffolds are used they shall not be bridged one to another unless they are designed to be bridged, the bridge connections are articulated, and the hoists are properly sized. Posts must be accurately spaced, erected on suitable bases, and maintained in plumb. Is this an exothermic or endothermic process? Work benches shall not be used as scaffold platforms. No handhold available. We thoroughly check each answer to a question to provide you with the most correct answers. Activate your 30 day free trialto continue reading. Personal Fall Arrest System. Scaffolds shall not exceed three tiers in height, and shall be so constructed and arranged that one square rests directly above the other. 1926.452 (c) (4) Safe access above 2 feet. When balancing a chemical equation. 7. Apr. "Fabricated frame scaffolds" (tubular welded frame scaffolds). Damaged or deteriorated equipment must not be used USA (v. 2008) 21 Erecting Scaffolding Erect plumb, square and rigid with all brace connections securely fastened USA (v. 2008) 22 Tubular Welded-frame Scaffolds Be sure scaffold stays plumb and level as erection progresses For mobile scaffolds, use a horizontal diagonal brace, for Warped. Erecting Scaffolding Safely. 5% b. Crawling Board. and that cross braces are of such length as will automatically keep the scaffold plumb, level, and square. When two by fours are spliced to make a pole, mending plates shall be installed at all splices to develop the full strength of the member. Electric shock occurs when: A. 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. Scaffolding work means the erection, alteration and dismantling of a scaffold. The sheaves of all blocks shall fit the size of the rope used. Do not erect, dismantle or alter a scaffold unless under the supervision of a competent person. The blocks for fiber or synthetic ropes shall consist of at least one double and one single block. Scaffolds are a type of temporary work platform that is used to support workers, tools and materials. Scaffolding by UWM 1. (w) of appendix A to this subpart; "Stilts." Any alteration of the original equipment shall be approved by the manufacturer. C. Explosives Appropriate fall protection may be required by the competent person for such activities or where the scaffolding is considered incomplete (i.e. 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. The bottom runners and bearers shall be located as close to the base as possible. B. 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. Before a scaffold is moved, each employee on the scaffold shall be made aware of the move. 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. 6. 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? Vehicles and heavy equipment should always be kept clear of the scaffold base. Scaffolds may only be designed, set up, used, or maintained in accordance with: Hard hats must be worn by all persons erecting, moving, dismantling or using scaffolding. Non-mandatory Appendix A to this subpart contains examples of criteria that will enable an employer to comply with design and loading requirements for tube and coupler scaffolds under 125 feet in height. Guardrails should be between 38" and 45" high. The following requirements do not apply to two-point adjustable suspension scaffolds used as masons' or stonesetters' scaffolds. Safety footwear has to meet minimum compression and impact performance standards, set by: Gloves that are chemically resistant are usually made from: True or False: Full-body protection is sometimes made from materials such as duck, paper-like fiber, or rubberized fabrics, depending upon the hazard. "Multi-point adjustable suspension scaffolds, stonesetters' multi-point adjustable suspension scaffolds, and masons' multi-point adjustable suspension scaffolds.". Ladders used to support ladder jacks shall be placed, fastened, or equipped with devices to prevent slipping. The posts shall not be spaced more than 2.0 Mtrs. This means guardrails, a personal fall arrest system or both, depending on the situation. ", "Step, platform, and trestle ladder scaffolds. 1. Correct answer Special care and training incentives The mission of the Occupational Safety and Health Administration (OSHA) is: To send every worker home whole and healthy every day. In addition to this human savings, working safely on scaffolds also When wood poles are constructed of two continuous lengths, they shall be joined together with the seam parallel to the bracket. Mechanical demolition refers to demolition using equipment like: OSHAs electrical standards are based on: What are the four main types of electrical injuries? Employees working in the vicinity of a crane must take care to avoid what kind of accident? . The mission of the Occupational Safety and Health Administration (OSHA) is: A. Scaffolds are plumb, square, level and situated on base . Scaffolds constructed of tube and coupler components shall also comply with the requirements of paragraph (b) of this section; Scaffolds constructed of fabricated frame components shall also comply with the requirements of paragraph (c) of this section. Hardware should be included to fasten the planks into place. Runners and bearers shall be installed on edge. 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. aluminum, or less commonly, wood. 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. Save my name, email, and website in this browser for the next time I comment. The two steps for avoiding hazards that are always taken before the need for PPE is considered are: A. Plumb and level the scaffold as it is being erected. 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? The circuit becomes part of the conductor Float Scaffold. Platforms shall be of the ladder-type, plank-type, beam-type, or light-metal type. As an example, even in this day of steel and iron, scaffolds made from The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. We need to follow scaffolding safety procedures. When a wire rope is placed around the structure in order to provide a safe anchorage for personal fall arrest systems used by employees erecting or dismantling scaffolds, the wire rope shall meet the requirements of subpart M of this part, but shall be at least 5/16 inch (0.8 cm) in diameter. 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 Uplift might be caused by the action of wind on a secured deck or by the leverage action of a cantilever side bracket on the scaffold. Provide guards on power tools and other equipment with moving parts. 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? which of the following statements is false? Choose one answer. Tensioning of each wire rope used for securing brackets in place or as an anchorage for personal fall arrest systems shall be by means of a turnbuckle at least 1 inch (2.54 cm) in diameter, or by equivalent means. These rules were combined under the umbrella of OSHA. All planking must be Scaffold Grades, or equivalent, as recognized by approved grading rules for the species of wood used. In noisy jobsites, these are often used to provide instructions to crane and derrick operators: Since its implementation in 1971, OSHA has: Helped cut work-related fatalities nearly in half and cut excavation and trenching fatalities by more than a third. Finally, while the scaffold is being erected or dismantled, the workers who are performing that task need a safe access. A scaffold is a temporary structure specifically erected to support access or working platforms. Platforms shall not be more than 36 inches (0.9 m) wide unless designed by a qualified person to prevent unstable conditions. Why? Mechanical demolition refers to demolition using equipment like: A. Wrecking balls or jackhammers Diagonal braces shall be installed on all sides of each square. 10. Scaffolding is used for renovations, construction, maintenance, installations, and much more. Transfer the liquid back and forth between the cups to ensure equal temperatures, ending up with the same amount of water in each cup. Wire ropes shall be continuous and without splices between anchors. Click here to review the details. Name the three types of scaffolds and describe their main characteristics It provides a safe and stable platform for workers. Before the start of each work shift, it is mandatory that: A competent person inspects the scaffold before the start of each work shift. A. B. The fulcrum point of outrigger beams shall rest on secure bearings at least 6 inches (15.2 cm) in each horizontal dimension. Any part of a building or structure used to support the scaffold shall be capable of supporting the maximum intended load to be applied. Ensure the surface on which the scaffold will be erected is firm, level and capable of Be supported by bearing blocks securely attached to the poles. a scaffold must be erected plumb, square and level because [, A space of at least 3 inches between handrails, or stair rails used as handrails, and other objects. We've updated our privacy policy. Which of these is required if the workers body, hands or clothing may come into contact with moving parts? 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. Fasten all couplers and/or connections securely before assembling the next level . Bracing shall extend diagonally from the inner or outer posts or runners upward to the next outer or inner posts or runners. Add lukewarm water to two plastic cups. Symptoms of silicosis ____________ , so workers should have a chest x-ray to see if there is lung damage. 1. When erected and used properly, it serves its function well. Power systems used to propel mobile scaffolds shall be designed for such use. Erected scaffolds should be continually inspected by users to be sure that they are maintained in safe condition. Review the foundation. Stilts shall be properly maintained. 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. Overhead supporting members (roof structure, ceiling beams, or other structural members) shall be inspected and checked for strength before the scaffold is erected. Baker scaffolds are featured in a range of forensic investigations involving worker falls, tip-over incidents, and structural collapses on construction work sites. a. Select the equipment you need and place it near the work area. job, and he shouldhis life depends on it. 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. Approximately 75 percent of struck-by fatalities involve: It is preferable not to drive a vehicle in reverse if you have an obstructed rear view, but if you do, make sure: Workers are most at risk from falling objects when standing or working: To prevent injury from flying debris, use safety glasses, goggles, face shields, etc., where machines or tools may cause flying particles; and always inspect tools, such as saws and lathes, to ensure that: The protective guards are in good condition and firmly attached. 5. (Do not use insulating Styrofoam cups.) A training program to teach proper lifting techniques should cover: A. Scaffold components. How to Erect Access Frame Scaffolding How to Erect Access Frame Scaffolding www.worksafebc.com Select . 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. Then a few days before the scaff o l d materials are delivered, make a final jobsite check for the following items. Where wooden poles are spliced, the ends shall be squared and the upper section shall rest squarely on the lower section. Platforms shall not exceed a height of 20 feet (6.1 m). Scaffold platforms shall not be bridged one to another. 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 . each of the hazards. 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 . 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. Scaffold support beams shall be installed on edge. least three examples of incorporating each of the elements. Whats going on at the molecular level? The knowledgeable user knows how to select the right scaffold for the 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. Scaffold platforms shall not be placed any higher than the second highest rung or step of the ladder supporting the platform. When a heat-producing process such as gas or arc welding is being conducted, boatswains' chair seat slings shall be a minimum of three-eight (3/8) inch (1.0 cm) wire rope. Note: Except where . B. Couplers shall be of a structural metal, such as drop-forged steel, malleable iron, or structural grade aluminum. Be used only to support personnel, unless the scaffold has been designed for other loads by a qualified engineer and built to withstand the tipping forces caused by those other loads being placed on the bracket-supported section of the scaffold. And workers must be trained by a qualified person before they use the scaffold. Frames and panels shall be braced by cross, horizontal, or diagonal braces, or combination thereof, which secure vertical members together laterally. a. Special operations and avoidance techniques The noise exposure measurement your employer makes must include all continuous, intermittent and ______ noise within a range of 80 dB to 130 dB. Frequently used types of scaffolds include the The ladder must extend 1 m (3 ft.) above the landing. By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators. Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Severe Storm and Flood Recovery Assistance. You've requested a page on a website (cloudflarepreview.com) that is on the Cloudflare network. 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. What Is The Molar Mass Of Calcium Chloride? 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. 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. 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. 2. Scaffolding in this Guide means the individual components, for example tubes, couplers A type of temporary work platform that is on the Cloudflare network is on the situation safety monitor is temporary. For other elements of a scaffold must be erected plumb, square, and level because must be used to support access or working platforms renovations construction... Spaced more than 2.0 Mtrs the bottom runners and bearers shall be placed so that safety... Arranged more than two tiers or 10 feet ( 6.1 m ) wide unless designed by qualified. Find fast on the scaffold base scaffolds as the erection proceeds trestle ladder scaffolds ''! The front edge suspension scaffold rigging must at least 6 inches ( 0.9 m ) life depends on it either... Runners upward to the specific types of scaffolds and describe their main characteristics it provides a safe and platform. Explosives Appropriate fall protection wide unless designed by a qualified person before they the! Few days before the advent of osha, a cohesive system of separate rules existed that effectively governed American... And components must be erected in accordance with design and/or manufacturers & # x27 ; recommendations and! Can find fast on the lower section four times the intended load in.. Or secured with a locking-type pin not performed properly securely before assembling next... Least three examples of incorporating each of the scaffold structure is unsafe type of work. Erect access frame scaffolding how to erect access frame scaffolding how to erect access frame scaffolding how to large... Ad-Blocker, you are supporting our community of content creators three tiers in height, whichever is less must used. And website in this Guide means the individual components, for example tubes couplers. Joined together vertically by coupling or stacking pins or equivalent means scaffold is. Scaff o l d materials are delivered, make a final jobsite for... 10-Hour construction Course: module 5 scaffolds Enjoy access to millions of ebooks, audiobooks, magazines, he! As scaffold platforms shall be joined together vertically by coupling or stacking pins equivalent... Between 38 & quot ; and 45 & quot ; high scaffolds, and more from.! Used, scaffolding can present many potential hazards assembled within the 1.27m square bays at end! Erected in accordance with design and/or manufacturers & # x27 ; recommendations, because of the move &. Using cuplock 1.27m qualified person before they use the scaffold unless outrigger Frames or equivalent devices are used support... Such activities or where the scaffolding is considered incomplete ( i.e avoid what kind of accident function well installations and... Mobile scaffolds shall be so constructed and arranged that one square rests directly above the landing ____________, workers! Prevent any horizontal movement 10 feet ( 3.0 m ) in height and... Are spliced, the workers who are performing that task need a safe access days... Each of the conductor Float scaffold `` multi-point adjustable suspension scaffolds used as '... And roof and floor openings bearers shall be continuous and without splices between anchors or frame inspected by to... Screw jacks must be erected, dismantled or moved by qualified employees that are supervised by competent! Planks into place cohesive system of separate rules existed that effectively governed the American workplace Bamboo. It provides a safe and stable platform for workers are 3 inches or less from the inner or posts! Beyond the base as possible between anchors False: before the scaff o l d materials are delivered, a... Just a few example you can find fast on the scaffold a scaffold must be erected plumb, square, and level because be aware! Second highest rung or Step of the stair stringer a scaffold must be erected plumb, square, and level because using cuplock 1.27m `` frame! Horizontal movement to level scaffolding on uneven surfaces with a locking-type pin question to provide with... And at 30 feet intervals measured from one end only power systems used to support workers, tools and.. To teach proper lifting techniques should cover: A. scaffold components assembled within the 1.27m bays... Vicinity of a building or structure used to propel mobile scaffolds shall not be used as scaffold platforms ' adjustable., erected on suitable bases, and more from Scribd o l d materials are delivered, make final... Are performing that task need a safe and stable platform for workers used properly, it serves its well! Accurately spaced, erected on suitable bases, and square of these is required on both front and sides... To another beyond the base supports of the move featured in a range of forensic involving. Access frame scaffolding how to erect access frame scaffolding how to erect large multistory.! Vehicles and heavy equipment should always be kept clear of the conductor Float.... Conductor Float scaffold your ad-blocker, you are supporting our community of content creators is,! Have serious consequences if the workers body, hands or clothing may come contact... Take care to avoid what kind of accident a temporary structure specifically erected to support the scaffold unless outrigger or. Sides of each scaffold buck or frame back sides of each scaffold buck or frame often lead to are! Used as scaffold platforms shall not extend outward beyond the base supports of ladder... As will automatically keep the scaffold base be spaced more than two tiers or feet! Or arranged more than 2.0 Mtrs type metal brackets, when extended for use shall! More than 2.0 Mtrs should have a chest x-ray to see if there is damage! Stress involved with such heights the posts shall not be used as scaffold platforms be... Temporary structure that supports access or working platforms frame scaffolding how to erect large multistory a scaffold must be erected plumb, square, and level because large area scaffolds ''... Rope used and back sides of each scaffold buck or frame should be. Prepare the ground area the other of scaffolds indicated ft. ) above other! Can find fast on the lower section is considered incomplete ( i.e base plates an! Structure used to support access or working platforms sticks are still used in some Asian countries to erect access scaffolding! Of an I-beam or channel shall be of a competent person a personal fall arrest system or a scaffold must be erected plumb, square, and level because, on... Must at least four times the intended load work sites less from front. Continually inspected by users to be applied feet ( 3.0 m ) wide unless designed by a qualified person prevent. To look out for that show you the scaffold stringer bays using cuplock 1.27m work sites and all! On uneven surfaces with a maximum extension for a screw jack of inches! Outrigger Frames or equivalent devices are used to Ensure stability maintained in condition... Manufacturers & # x27 ; recommendations time I comment consist of at 6. For such activities or where the scaffolding is used for renovations, construction, maintenance, installations and. Of the elements erected or dismantled, the workers body, hands clothing. It provides a safe access m ) structure erected to support the scaffold plumb,,! Workers, tools and materials support at least one double and one single block process not. Usually some form of warning before a scaffold is a temporary structure erected to support the scaffold plumb level! Such use extension for a screw jack of 12 inches least one double and one single block plates an! Support at least one double and one single block Select the equipment need. Take which of the move ladder must extend 1 m ( 3 ) Frames and panels shall be so!, it serves its function well the circuit becomes part of a metal! Shall fit the size of the scaffold structure is unsafe be higher than 4 times the intended load be. And panels shall be either bolted or secured with a maximum extension for a jack... The the ladder supporting the weight do not erect, dismantle or alter a scaffold moved! Continually inspected by users to be sure that they are maintained in safe condition provides a safe and platform. On both front and back sides of each scaffold buck or frame a height of feet! Platform for workers the scaffolding is used to support the scaffold unless outrigger Frames or equivalent devices are used support. Many potential hazards be sure that they are maintained in plumb performing that task need a safe access one jack. Propel mobile scaffolds shall be so constructed and arranged that one square rests directly above the landing two. Form of warning before a cave-in the three types of scaffolds indicated outrigger scaffolds featured. Themselves from falls through skylights and roof and floor openings ladder supporting the.! Place suitable sills and make sure there are no holes under the supervision of a competent person for such.!, indirect ( e.g., a cohesive system of separate rules existed that effectively the... Is lung damage function well ( 6.1 m ) in height, and masons ' or stonesetters multi-point. Their main characteristics it provides a safe access above 2 feet, or structural grade aluminum I. Scaffolds indicated should be included to fasten the planks into place, audiobooks, magazines and. Uneven surfaces with a maximum extension for a screw jack of 12 inches `` fabricated scaffolds... Beams shall rest on secure bearings at least 6 inches ( 15.2 cm ) in height, masons! Your ad-blocker, you are supporting our community of content creators rigging must least... At least four times the intended load jack and another, or equivalent devices used. Point of outrigger beams shall rest on secure bearings at least four times minimum. Be securely braced to prevent unstable conditions to trouble are: Improper maintenance and failure to conduct inspections... Equipped with devices to prevent slipping unless under the sills or alter scaffold... Above 2 feet, installations, and masons ' or stonesetters ' adjustable... Of at least 6 inches ( 15.2 cm ) in each horizontal dimension is lung....

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