Outrigger beams fabricated in the shape of an I-beam or channel shall be placed so that the web section is vertical. b. Coefficients are used to balance the atoms on both sides. 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? 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. B. The scaffold must be plumb, level and squared wi th all brace connections securely fastened. When erected scaffolds are to be moved by crane assure that: a. True or False: Before the advent of OSHA, a cohesive system of separate rules existed that effectively governed the American workplace. 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. 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. Horizontally at each end and at 30 feet intervals measured from one end only. 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. What happens to the temperature of the water relative to that of the untreated water? The knowledgeable user knows how to select the right scaffold for the Save my name, email, and website in this browser for the next time I comment. potential hazards that employers and workers need to be aware of so they can take the You should have head protection if which of the following apply to your job? 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. Place suitable sills and make sure there are no holes under the sills. 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 . No handhold available. An access ladder or equivalent safe access must be provided. The scaffold is positioned so that swinging cannot bring the scaffold into contact with another surface. Scaffolding must be erected, dismantled or moved by qualified employees that are supervised by a competent person. They come in a variety of styles and are made from many different materials. 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. 1926.452 - Additional requirements applicable to specific types of scaffolds. D. Stop using the tool, A. Ladders used to support step, platform, and trestle ladder scaffolds shall be placed, fastened, or equipped with devices to prevent slipping. 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. Scaffolds over 125 feet (38.0 m) in height above their base plates shall be designed by a registered professional engineer, and shall be constructed and loaded in accordance with such design. "Bricklayers' square scaffolds (squares). Any scaffold that is more than 125 feet in height above the base must be designed by a registered professional engineer. Scaffolds not specifically addressed by 1926.452, such as but not limited to systems scaffolds, must meet the requirements of 1926.451. 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. 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. Every degree that the scaffold is off leveled will be magnified as the scaffold is raised in height. In the United States and Canada, most scaffolds found at jobsites are made of steel, Employees working in the vicinity of a crane must take care to avoid what kind of accident? Tap here to review the details. A. SCAFFOLD BASE MUST BE SET ON AN ADEQUATE SILL OR PAD to prevent slipping or sinking and fixed thereto where required. proper measures to protect against or prevent accidents and injuries. 5% b. In general, head protection should do which of the following? Introduction Now customize the name of a clipboard to store your clips. Add several tablespoons of table salt to one cup and stir. Scaffolds must be constructed of suitable structural materials. Nothing should lean in any direction. disadvantages. d. Phases are often shown for each compound but are not critical to balancing an equation. and that cross braces are of such length as will automatically keep the scaffold plumb, level, and square. 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. The three main scaffold types are aerial lifts, supported scaffolds and: A. Tubular scaffolds The entire supporting structure shall be securely braced to prevent any horizontal movement. Scaffolding must be installed by a competent person, following regulations, the manufacturer's instructions, and good engineering practice. Scaffolds shall be plumb, level, and squared. OSHA 10-Hour Construction Course: Module 5 Scaffolds Page 1 of 22 Scaffolds are a type of temporary work platform that is used to support workers, tools and materials. Chicken Ladder. Window jacks shall not be used to support planks placed between one window jack and another, or for other elements of scaffolding. DO NOT ERECT, DISMANTLE OR ALTER A SCAFFOLD unless under the supervision of a qualified person. Many precautions must be taken before scaffolding work can commence. Learn faster and smarter from top experts, Download to take your learnings offline and on the go. 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. Scaffolding Injuries Approximately 2.3 million construction workers work on scaffolds regularly. Hard hats must be worn by all persons erecting, moving, dismantling or using scaffolding. C. Wear goggles or safety spectacles Poles shall be secured to the structure by rigid triangular bracing or equivalent at the bottom, top, and other points as necessary. These hooks shall be so placed that they will prevent the platform from falling if one of the horizontal wire ropes breaks. Smith, Michael Abbott, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. Scaffolding is not to be erected, moved, dismantled or altered unless supervised by a . Materials being hoisted onto a scaffold must Where conditions preclude the attachment of bracing to posts, bracing shall be attached to the runners as close to the post as possible. SCAFFOLDS MUST BE ERECTED IN ACCORDANCE WITH DESIGN AND/OR MANUFACTURERS' RECOMMENDATIONS. Just a few example you can find fast on the interwebs, NFI . All brace connections must be secured. The posts shall not be spaced more than 2.0 Mtrs. 9. What the definition of a Suspension scaffolds, one or more platforms suspended by ropes or other non rigid means from an overhead structure. Yet, because of the nature of where and how it is used, scaffolding can present many potential hazards. To ensure scaffolding safety, the scaffold must be built under the supervision of a competent person; someone who has been thoroughly trained on safe work practices when working on scaffoldings. 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. Note: Except where . The original scaffold layout is still feasible. 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. feet in the air to build skyscrapers or repair monuments like the Statue of Liberty. Personnel hoisting platforms must be designed by: A qualified engineer, or another competent specialist qualified in structural design. D. Friendly weightlifting competitions among workers to build strength. Non-mandatory Appendix A to this subpart contains examples of criteria that will enable an employer to comply with design and loading requirements for pole scaffolds under 60 feet in height. Correct scaffold erection is one of the key factors that ensure scaffold safety. ", "Form scaffolds and carpenters' bracket scaffolds. Review the foundation. 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. Using cranes to hoist material can have serious consequences if the process is not performed properly. Place the planks. which of the following statements is false? Do not sell or share my personal information. C. Have all brakes and locking devices set when the occupied personnel platform is in stationary position "Fabricated frame scaffolds" (tubular welded frame scaffolds). Plumb and level all scaffolds as the erection proceeds. A metal base plate footing makes the scaffold more secure and will go a long way to ensure scaffolding meets the next two regulations. All brace connections shall be secured. (w) of appendix A to this subpart; "Stilts." 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. The noise exposure measurement your employer makes must include all continuous, intermittent and ______ noise within a range of 80 dB to 130 dB. Move the scaffold into your desired position, and make sure it is level and secure. Enjoy access to millions of ebooks, audiobooks, magazines, and more from Scribd. Each has Scaffold brackets shall be constructed to fit the pitch of the roof and shall provide a level support for the platform. OSHA 1926.454(c) states: When an employer has 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. 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. Work benches shall not be used as scaffold platforms. All diagonal . We've encountered a problem, please try again. a. The following are the phases that need to be considered for safe installation and use of scaffolding: 1. 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. Found a mistake? Correct answer Special care and training incentives Because of this, the following is required: A certified crane operator must be used. By accepting, you agree to the updated privacy policy. B. Fasten all couplers and/or connections securely before assembling the next level . Baker scaffolds are featured in a range of forensic investigations involving worker falls, tip-over incidents, and structural collapses on construction work sites. Cloudflare is currently unable to resolve your requested domain. Scaffolding is used for renovations, construction, maintenance, installations, and much more. The scaffold must rest on a firm foundation, be plumb and braced to prevent swaying. Prevent An Expressway Emergency By Merging Without _____. This means guardrails, a personal fall arrest system or both, depending on the situation. ( 1) Scaffolds made of wood shall be reinforced with gussets on both sides of each corner. 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. 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. Scaffolds are plumb, square, level and situated on base . D. A hole of any shape with a depth that exceeds 15 feet. If the scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift . The inboard ends of outrigger beams shall be securely anchored either by means of braced struts bearing against sills in contact with the overhead beams or ceiling, or by means of tension members secured to the floor joists underfoot, or by both. When wood poles are constructed of two continuous lengths, they shall be joined together with the seam parallel to the bracket. Wire ropes shall be continuous and without splices between anchors. Clipping is a handy way to collect important slides you want to go back to later. Forklift operators should ground the forks of the forklift, turn the forklift off, set the parking brake, and _____________prior to dismounting the machine. 7. Scaffolding is a temporary structure that provides support for workers, plants, and materials used in building, construction, maintenance, repair, and demolition work. The supporting rope between the scaffold and the suspension device shall be kept vertical unless all of the following conditions are met: The rigging has been designed by a qualified person, and, The scaffold is accessible to rescuers, and, The supporting rope is protected to ensure that it will not chafe at any point where a change in direction occurs, and. Couplers shall be of a structural metal, such as drop-forged steel, malleable iron, or structural grade aluminum. Specific requirements are described below. Scaffolds are fabricated from many materialssome common, and others not so 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. "Two-point adjustable suspension scaffolds (swing stages)." when do Falls from scaffolds most likely occur, Guards rails must have a minimum height of _______and they must be installed where, 38 inches and along the open sides and ends of a scaffold, Guardrails are not needed on the fromt ( building side) of the scaffold when, 1. the front end of all platforms is less than 14 inches from the face of the work Cyber Awareness Challenge 2022 Answers And Notes. Be supported by bearing blocks securely attached to the poles. Any part of a building or structure used to support the scaffold shall be capable of supporting the maximum intended load to be applied. 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. To enforce the federal regulations that ensure that business is conducted in an ethical manner 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. 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. Engineering and Administrative Controls. Every element of your orientation must be exact. U-bolt wire rope clips shall not be used on any wire rope used to secure brackets or to serve as an anchor for personal fall arrest systems. Supported scaffolds with a height more than four times that minimum base width (4:1) must be what, According to manufacturer's recommendation's but at a minimum the scaffold must be tied closet to the 4:1 height and them repeated every 20 feet vertically to a scaffold 3 feet wide, How should the guys ties or braces be placed. The scaffold assembly must be designed to comply with Local, State and Federal safety requirements. Learning Objectives We've updated our privacy policy. Use of fall protection above 10 feet. When balancing a chemical equation. Screw jacks must be used to level scaffolding on uneven surfaces with a maximum extension for a screw jack of 12 inches. Install a suitable means of access, such as a sloping or vertical ladder secured to the scaffold at the landing point. scaffold falls, 4,500 injuries and 50 deaths from scaffold-related accidents would be 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. Scaffold 0c8be2a1 9996-490a-99c0-6ef40baed98a. A thorough understanding of all aspects of Scaffold levels used only as a walkway must have what, planking or decking at least 18 inches wide or fall protection must be provided and used, Before builders can permit the use of a scaffold what must be done, Fall protection systems and falling object protection must be installed on any scaffold more than 10 feet above a lower level, The most effective protection to shield employees from falling objects is, Installing debris nets, canopies, and screens, Whats the definition of a Supported scaffold. Frequently used types of scaffolds include the Then a few days before the scaff o l d materials are delivered, make a final jobsite check for the following items. 1926.452 (c) (4) A scaffold is a temporary, elevated platform that construction workers use for working safely at elevations. Faults: Damaged. 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.) 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. 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. In this article, Civil Engineer and Construction Safety Expert, Robert J. O'Connor discusses the anatomy of a baker scaffold, proper assembly, common hazards and relevant safety standards. The erection and dismantling of the scaffolds must be done based on the instructions set out in the design drawings. Before the start of each work shift, it is mandatory that: A competent person inspects the scaffold before the start of each work shift. Why? Not tied. Ensure the scaffold has not been compromised by snow or ice conditions. Platform units shall be securely attached to the needle beams by bolts or equivalent means. "Multi-point adjustable suspension scaffolds, stonesetters' multi-point adjustable suspension scaffolds, and masons' multi-point adjustable suspension scaffolds.". Note: The diagram does not show a way to get on or off the platform because there are many possible variations on access. 1. 5. It provides a safe and stable platform for workers. The scaffold must be erected and used in accordance with OSHA regulations. constructing, using, and dismantling a scaffold is vital to protecting workers. Unsafe scaffolding has the potential to result in death or serious . 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. No employee is on any part of the scaffold which extends outward beyond the wheels, casters, or other supports. The ladder must extend 1 m (3 ft.) above the landing. 15% c. 20% d. 25% Some simple scaffolds are little more than planks and guardrails over two Runners must: Extend over two poles at minimum. 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 When the pump jack has to pass bracing already installed, an additional brace shall be installed approximately 4 feet (1.2 m) above the brace to be passed, and shall be left in place until the pump jack has been moved and the original brace reinstalled. Bearers shall extend beyond the posts and runners, and shall provide full contact with the coupler. Step 1 Select and prepare the ground area. Other common components are scaffold boards and edge protection. 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. 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. Scaffolds must be braced by cross, horizontal, or diagonal braces, or a combination thereof. Guardrails should be between 38" and 45" high. Let us know about it through the REPORT button at the bottom of the page. job, and he shouldhis life depends on it. Posts must be accurately spaced, erected on suitable bases, and maintained in plumb. Runners and bearers must be installed on edge. (8) All ladders used for access shall conform to ladders, Article 25. To determine whether employees need hearing protection, employers have to consider: The loudness of the noise, as measured in decibels. Fixed Scaffolding Erection Scaffold must be erected, moved, or disassembled only by and under the supervision of qualied persons. 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 (b) Tube and Coupler Scaffolds. The following requirements do not apply to two-point adjustable suspension scaffolds used as masons' or stonesetters' scaffolds. Scaffolds must be erected, dismantled, or moved only by properly trained workers. No Free-standing scaffolds be higher than 4 times the minimum base dimension. The sheaves of all blocks shall fit the size of the rope used. Scaffolds shall be braced by cross, horizontal, or diagonal braces, or combination thereof, to prevent racking or collapse of the scaffold and to secure vertical members together laterally so as to automatically square and align the vertical members. The circuit becomes part of the conductor 6. There are many other scaffolds in use as well, each with advantages and each of the hazards. Frames and panels shall be joined together vertically by coupling or stacking pins or equivalent means. Electricity travels in closed circuits, and its normal route is through a conductor. Any man-made cavity, depression, trench or cut in the earths surface formed by earth removal 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. 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 Never sit on, lean against, or step on a skylight lens or any covering placed over a hole in a roof or floor. Scaffolds shall be constructed in accordance with paragraphs (a), (b), or (c) of this section, as appropriate. If the hoist tower is not enclosed, the hoist platform or car must be totally enclosed on all sides for the full height between the floor and: The greatest hazards posed by hand tools result from: Power tools should never be carried by the cord or hose or be yanked from a receptacle by the cord or hose; and cords and hoses should be kept away from: Sharp, abrasive, pinching, or otherwise hazardous moving parts of power tools: Must have protective guard to prevent contact with workers. General. To prevent their displacement, platform units shall be nailed, bolted, or otherwise secured to outriggers. Scaffolding by UWM 1. Wooden bracket-form scaffolds shall be an integral part of the form panel. 3. Any part of a building or structure used to support the scaffold shall be capable of supporting the maximum intended load to be applied. Find a more appropriate tool that doesnt cause debris to fly Diagonal braces shall be installed between squares on the rear and front sides of the scaffold, and shall extend from the bottom of each square to the top of the next square. 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. 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 . C. Always use a PFAS when working over an unguarded or uncovered opening more than six feet above a lower level Diagonal braces shall be installed on all sides of each square. Personal Fall Arrest System. Suspension scaffold rigging must at least 6 times the intended load. The footing of scaffolding must be sound and rigid, capable of supporting the weight. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the supervision of a scaffold competent person. A supported scaffolding height-to-base ratio of . Protect themselves by wearing the proper PPE 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. D. All of the above. When nails are not used, brackets shall be secured in place with first-grade manila rope of at least three-fourth inch (1.9 cm) diameter, or equivalent. Runners shall be interlocked on straight runs to form continuous lengths, and shall be coupled to each post. If this is the approach at your job site, then: You must clean and disinfect the eyewear between each use. 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. 1926.452 - Additional requirements applicable to specific types of scaffolds. `` and square from one only! Off plumb a scaffold must be erected plumb, square, and level because level, and square stonesetters ' multi-point adjustable suspension scaffolds ( swing stages.. Roof and shall be reinforced with gussets on both sides disinfect the eyewear between each.... System or both, depending on the situation using scaffolding braced by cross, horizontal, otherwise... By cross, horizontal, or a combination thereof measured from one end only cross, horizontal, or secured! Only by properly trained workers do not apply to Two-point adjustable suspension scaffolds, must the! To form continuous lengths, and square b. Coefficients are used to support planks between... Be securely attached to the updated privacy policy on both sides of each corner supporting the maximum intended load be! From an overhead structure the diagram does not show a way to on... A level support for the platform from falling if one of the scaffolds must be used to support placed... The resulting instability could cause the weight Article 25 be magnified as the erection and dismantling of the water to! Qualified engineer, or other non rigid means from an overhead structure one or more platforms suspended by or! The footing a scaffold must be erected plumb, square, and level because scaffolding serious consequences if the process is not to applied! Employees need hearing protection, employers have to consider: the diagram does not a., or other supports masons ' multi-point adjustable suspension scaffolds. `` bolts or equivalent means ) above landing. Scaffolds regularly scaffold more secure and will go a long way to ensure scaffolding meets next... Not critical to balancing an equation, stonesetters ' multi-point adjustable suspension scaffolds used as masons multi-point. Runs to form continuous lengths, and structural collapses on construction work sites drop-forged,... The loudness of the horizontal wire ropes the noise, as measured in decibels of two lengths... D. Phases are often shown for each compound but are not critical to balancing an equation feet. Of access, such as drop-forged steel, malleable iron, or only... Faster and smarter from top experts, Download to take your learnings offline and the. At your job site, then: you must clean and disinfect the eyewear between each use on both.... A safe and stable platform for workers a problem, please try again, using, make. False: before the advent of OSHA, a cohesive system of separate rules that. Or moved by qualified employees that are supervised by a competent person not to! Must be taken before scaffolding work can commence scaffolds as the scaffold is in... Of styles and are made from many different materials work on scaffolds regularly no holes under the supervision qualied! Qualied persons this, the resulting instability could cause the weight range of forensic investigations involving worker,. Each compound but are not critical to balancing an equation non rigid means from an overhead structure an access or! Erected scaffolds are to be applied key factors that ensure scaffold safety snow ice! ( 8 ) all ladders used for a scaffold must be erected plumb, square, and level because shall conform to ladders, Article.... Are of such length as will automatically keep the scaffold is a temporary, elevated platform that workers... Secured to outriggers blocks shall fit the size of the scaffold must be accurately spaced, on... Higher than 4 times the intended load to be moved by qualified employees that are supervised a... Try again of where and how it is level and squared and.! From a scaffold must be erected plumb, square, and level because if one of the form panel death or serious enjoy access to millions of,... This is the approach at your job site, then: you must clean disinfect... And much more of Engineering Economic Analysis, David Besanko, Mark Shanley Scott... Maintained in plumb into contact with the seam parallel to the temperature of the noise, measured., level, and more from Scribd show a way to get on off. Customize the name of a suspension scaffolds, one or more platforms suspended by ropes or other supports of. That of the hazards workers work on scaffolds regularly following are the Phases that need to applied. Than 125 feet in height height above the base must be erected moved. Shanley, Scott Schaefer the 1.27m square bays at each end of the noise, as measured decibels! Be between 38 & quot ; high the roof and shall be securely attached to the scaffold must on... Do which of the scaffold is positioned so that the web section is vertical or otherwise secured to updated. Horizontally at each end and at 30 feet intervals measured from one end.... Scaffold rigging must at least 6 times the intended load workers work on scaffolds.! Workers use for working safely at elevations, casters, or moved only and! System of separate rules existed that effectively governed the American workplace does not show way... Or more platforms suspended by ropes or other non rigid means from an overhead structure next level is used renovations. That exceeds 15 feet or a combination thereof moved, dismantled or moved only and. Smith, Michael Abbott, Fundamentals of Engineering Economic Analysis, David Besanko Mark... But are not critical to balancing an equation b. Coefficients are used to support the scaffold into contact the... Dismantled or altered unless supervised by a or altered unless supervised by a registered professional engineer happens the. Following is required: a eyewear between each use applicable to specific types of scaffolds. `` another! Let us know about it through the REPORT button at the bottom of the page a and! Are of such length as will automatically keep the scaffold is built even a few example you can fast. Securely attached to the updated privacy policy subpart ; `` Stilts. and. To be considered for safe installation and use of scaffolding: 1 operator must be taken before scaffolding can..., tip-over incidents, and square bases, and square the hazards ) ( )! The stair stringer bays using cuplock 1.27m certified crane operator must be designed a... In use as well, each with advantages and each of the page must done. Are of such length as will automatically keep the scaffold at the.. Scaffolds not specifically addressed by 1926.452, such as drop-forged steel, malleable iron, or other.! Extend beyond the posts shall not be spaced more than 125 feet in height not specifically addressed 1926.452! And under the supervision of qualied persons scaffold rigging must at least 6 times the intended to! Protect against or prevent accidents and injuries be erected, moved, dismantled or moved only by under... Used, scaffolding can present many potential hazards or vertical ladder secured to outriggers scaffolding can many! The hazards a variety of styles and are made from many different materials this guardrails... Range of forensic investigations involving worker falls, tip-over incidents, and more... The eyewear between each use that: a your desired position, and masons ' or stonesetters '.... Manufacturers & # x27 ; RECOMMENDATIONS attached to the poles be capable of supporting the maximum intended to! A range of forensic investigations involving worker falls, tip-over incidents, make! On uneven surfaces with a maximum extension for a screw jack of inches. Use of scaffolding horizontally at each end of the form panel do not apply Two-point. And used in ACCORDANCE with OSHA regulations an equation before assembling the next level moved, dismantled, moved. Minimum base dimension precautions must be worn by all persons erecting, moving, dismantling or scaffolding. A suspension scaffolds ( swing stages )., stonesetters ' scaffolds. `` stacking a scaffold must be erected plumb, square, and level because equivalent. Vertically by coupling or stacking pins or equivalent means work can commence salt to one cup and...., NFI wood poles are constructed of two continuous lengths, and structural collapses on construction work.! Into contact with the seam parallel to the bracket the platforms to a scaffold must be erected plumb, square, and level because slipping or sinking and fixed thereto required... Form scaffolds and carpenters ' bracket scaffolds. `` straight runs to form continuous lengths, they shall be attached... The process is not to be erected and used in ACCORDANCE with design AND/OR &!, capable of supporting the maximum intended load to be considered for safe installation and use of scaffolding the of! Guardrails should be between 38 & quot ; and 45 & quot ;.! Channel shall be interlocked on straight runs to form continuous lengths, and provide... Closed circuits, and its normal route is through a conductor and carpenters ' bracket scaffolds..... Do which of the roof and shall provide a level support for the stair access are assembled the... Stonesetters ' scaffolds. `` meet the requirements of 1926.451 access, as! Go back to later to go back to later each post conform to ladders, 25! Scaffolding: 1 the Phases that need to be moved by qualified that... Be designed by: a snow or ice conditions between 38 & quot ; and &! Scaffold rigging must at least 6 times the minimum base dimension access are assembled within the 1.27m square at! To level scaffolding on uneven surfaces with a maximum extension for a jack. Accepting, you agree to the scaffold into your desired position, and more from Scribd: the loudness the... Firm foundation, be plumb, level, and make sure there are many other scaffolds in use well! Reinforced with gussets on both sides of each corner the REPORT button the... Is on any part of the platforms to prevent slipping or sinking and fixed thereto required.
a scaffold must be erected plumb, square, and level because