Make sure the scaffold is stable. 1. Cleats and overhang are not considered to be adequate means of attachment. 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. C. Suspended scaffolds Folding type metal brackets, when extended for use, shall be either bolted or secured with a locking-type pin. 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. Work benches shall not be used as scaffold platforms. disadvantages. An access ladder or equivalent safe access must be provided. 4. C. Explosives This poses a risk of electrocution not just to the worker holding the tool, but to everyone who contacts the scaffold. Mechanical demolition refers to demolition using equipment like: A. Wrecking balls or jackhammers ( 2) Diagonal braces shall be installed on all sides of each square. 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. ( 1) Scaffolds made of wood shall be reinforced with gussets on both sides of each corner. For example, if lumber is used, it must be construction grade or Number 1 Grade spruce. Scaffolds shall not be bridged one to another. Activate your 30 day free trialto continue reading. All brace connections shall be secured. Scaffolding in this Guide means the individual components, for example tubes, couplers Brackets shall be secured in place by at least one wire rope at least 1/2 inch (1.27 cm) in diameter. Scaffolding by UWM 1. General. Instant access to millions of ebooks, audiobooks, magazines, podcasts and more. Independent support lines and suspension ropes shall not be attached to the same points of anchorage. Each bracket, except those for wooden bracket-form scaffolds, shall be attached to the supporting formwork or structure by means of one or more of the following: nails; a metal stud attachment device; welding; hooking over a secured structural supporting member, with the form wales either bolted to the form or secured by snap ties or tie bolts extending through the form and securely anchored; or, for carpenters' bracket scaffolds only, by a bolt extending through to the opposite side of the structure's wall. 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. Protect themselves by wearing the proper PPE 6. Position the first level of bracing as close to the base as possible. 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. Runners and bearers must be installed on edge. 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. . D. A hole of any shape with a depth that exceeds 15 feet. Any man-made cavity, depression, trench or cut in the earths surface formed by earth removal Always use . The ladder must extend 1 m (3 ft.) above the landing. 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 If the scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift . Diagonal braces shall be installed on all sides of each square. Platform units shall be securely attached to the needle beams by bolts or equivalent means. Any alteration of the original equipment shall be approved by the manufacturer. 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? Surfaces on which stilts are used shall be flat and free of pits, holes and obstructions, such as debris, as well as other tripping and falling hazards. Platforms shall not be more than 36 inches (0.9 m) wide unless designed by a qualified person to prevent unstable conditions. To enforce the federal regulations that ensure that business is conducted in an ethical manner The support connection shall be arranged so as to prevent the needle beam from rolling or becoming displaced. 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. Scaffolds shall be equipped with additional independent support lines, equal in number to the number of points supported, and of equivalent strength to the suspension ropes, and rigged to support the scaffold in the event the suspension rope(s) fail. Electric shock occurs when: A. The two steps for avoiding hazards that are always taken before the need for PPE is considered are: A. Scaffold components. Baker scaffolds are featured in a range of forensic investigations involving worker falls, tip-over incidents, and structural collapses on construction work sites. 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. 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. 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. Ray ID: 7a19bde4e8771d14 Move the personnel platform slowly and cautiously and have a rotation-resistant rope with a safety factor of 10 Personal Fall Arrest System. Not tied. Every scaffold must be erected by qualified technicians based on the information in the design drawings. The three elements of a basic program for electrical safety are: All portable electric tools that are damaged shall be: If you have a three-prong plug and a two-hole receptacle, it is acceptable to: Use an adapter with an adapter wire connected to known ground. 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. A staging area is available. There are several important scaffolding design guidelines and safety rules that pertain to working on a scaffold: Guardrails and/or fall arrest systems are mandatory when working over 10 feet up. List at least three of the four main hazards to which persons working on a In addition to the applicable requirements of 1926.451, the following requirements apply to the specific types of scaffolds indicated. You do not have access to www.concreteconstruction.net. 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 . The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. To secure fair compensation for workers who have been injured in accidents Then a few days before the scaff o l d materials are delivered, make a final jobsite check for the following items. 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. Erecting Scaffolding Safely. d. Phases are often shown for each compound but are not critical to balancing an equation. Do not force frames or . SCAFFOLDS MUST BE ERECTED IN ACCORDANCE WITH DESIGN AND/OR MANUFACTURERS' RECOMMENDATIONS. The entire inside face of double-pole scaffolds used to support loads of 50 lbs. Building ties shall be installed at the bearer levels between the transverse bracing and shall conform to the requirements of 1926.451(c)(1). All diagonal . Acceptable fall protection systems allowed include guardrails, safety nets, safety harnesses , positioning device systems and fall restraint systems. Scaffold platforms must be fully decked or planked. When erected and used properly, it serves its function well. Hard hats must be worn by all persons erecting, moving, dismantling or using scaffolding. of first grade manila rope. The scaffold must be erected with cross, horiz ontal, or diagonal braces, or combination. Runners shall extend over a minimum of two poles, and shall be supported by bearing blocks securely attached to the poles. An employee may wear stilts on a scaffold only if it is a large area scaffold. When horses are arranged in tiers, the legs of each horse shall be nailed down or otherwise secured to prevent displacement. Pre-Planning & Inspection Introduction Scaffolding is a precise structure. What the definition of a Suspension scaffolds, one or more platforms suspended by ropes or other non rigid means from an overhead structure. Where conditions preclude the attachment of bracing to posts, bracing shall be attached to the runners as close to the post as possible. Horizontally at each end and at 30 feet intervals measured from one end only. The bottom runners and bearers shall be located as close to the base as possible. Scaffolds not specifically addressed by 1926.452, such as but not limited to systems scaffolds, must meet the requirements of 1926.451. 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. Mechanical demolition refers to demolition using equipment like: OSHAs electrical standards are based on: What are the four main types of electrical injuries? No modifications or additions that affect the capacity or safe operation of a crane or derrick should ever be made without: The manufacturers written approval, which should be kept on file. The use of gray cast iron is prohibited. Truck-mounted and rough terrain cranes are both forms of a mobile crane, and both use which of the following to increase their stability? 7. D. Armed robots. It appears that you have an ad-blocker running. 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. 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. These hooks shall be so placed that they will prevent the platform from falling if one of the horizontal wire ropes breaks. Scaffolds shall be constructed in accordance with paragraphs (a), (b), or (c) of this section, as appropriate. Each pump jack bracket shall have two positive gripping mechanisms to prevent any failure or slippage. Most fatalities, however, happen when workers fall from: Employers must ensure that all walking and working surfaces have the structural integrity to: Controlled access zones serve a dual purpose they allow specially trained individuals (such as masons) to operate without traditional fall protection within a certain area, and: A system used to arrest a worker in a fall from a working level that consists of an anchorage, connectors, a body belt or body harness, and may include a lanyard, deceleration device, lifeline, or suitable combinations of these is called a: When no other alternative fall protection has been implemented, the employer shall implement a safety monitoring system. Extreme weather or damage to structural components can also affect a scaffold's stability. These rules were combined under the umbrella of OSHA. "Multi-point adjustable suspension scaffolds, stonesetters' multi-point adjustable suspension scaffolds, and masons' multi-point adjustable suspension scaffolds.". In the United States and Canada, most scaffolds found at jobsites are made of steel, Cross-bracing is required on both front and back sides of each scaffold buck or frame. Ladder Jack Scaffold. (w) of appendix A to this subpart; "Stilts." Scaffolds have been around for thousands of years, and there are myriad types and 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 . B. Your lines should be perfectly vertical (plumb) and horizontal (level), and your corners should be exactly 90 degrees (square). On scaffolds whose length is greater than their height, such bracing shall be repeated beginning at least at every fifth post. Scaffolds are plumb, square, level and situated on base . 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. A training program to teach proper lifting techniques should cover: A. 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 scaffold must be erected and used in accordance with OSHA regulations. 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. 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. The cross braces shall be of such length as will automatically square and align vertical members so that the erected scaffold is always plumb, level, and square. The scaffold must rest on a firm foundation, be plumb and braced to prevent swaying. Fasten all couplers and/or connections securely before assembling the next level . Is this an exothermic or endothermic process? Runners and bearers shall be installed on edge. Runners shall be erected along the length of . Before an abrasive wheel is mounted, it should be inspected closely and: Sound- or ring-tested to ensure that it is free from cracks or defects. How to Erect Access Frame Scaffolding How to Erect Access Frame Scaffolding www.worksafebc.com Select . ", "Step, platform, and trestle ladder scaffolds. Posts must be accurately spaced, erected on suitable bases, and maintained in plumb. 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. The employer shall ensure that materials shall not be dropped to the outside of the supporting structure. The body becomes part of the circuit That requirement reflects the additional hazards and structural stress involved with such heights. Hardware should be included to fasten the planks into place. Power systems used to propel mobile scaffolds shall be designed for such use. Supported scaffold poles, legs . Do not abuse or misuse the scaffold equipment. Scaffolds, once properly erected, are a control measure to prevent the risk of persons and objects falling when working at height. The scaffold assembly must be designed to comply with Local, State and Federal safety requirements. Scaffold platforms shall not be placed any higher than the second highest rung or step of the ladder supporting the platform. We need to follow scaffolding safety procedures. Note: The diagram does not show a way to get on or off the platform because there are many possible variations on access. B. 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. 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. Scaffolds and components must be able to support at least four times the intended load. Forklift operators should ground the forks of the forklift, turn the forklift off, set the parking brake, and _____________prior to dismounting the machine. Runners must: Extend over two poles at minimum. Frequently used types of scaffolds include the And workers must be trained by a qualified person before they use the scaffold. Be supported by bearing blocks securely attached to the poles. OSHA 10-Hour Construction Course: Module 5 Scaffolds Page 1 of 22 Just a few example you can find fast on the interwebs, NFI . Never sit on, lean against, or step on a skylight lens or any covering placed over a hole in a roof or floor Learning Objectives Every element of your orientation must be exact. Scaffolds must be constructed of suitable structural materials. This means guardrails, a personal fall arrest system or both, depending on the situation. Brackets (including those provided with pointed metal projections) shall be anchored in place by nails unless it is impractical to use nails. Suspension ropes and cables shall be connected to the overhead supporting members by shackles, clips, thimbles, or other means that meet equivalent criteria (e.g., strength, durability). Insufficient length. Ensure the scaffold has not been compromised by snow or ice conditions. 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. 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. 3. D. Rope-ladder scaffolds. Bearers shall extend beyond the posts and runners, and shall provide full contact with the coupler. There might be one pair of protective eyewear for your task or station, rather than individual eyewear for each employee. Place suitable sills and make sure there are no holes under the sills. The sheaves of all blocks shall fit the size of the rope used. 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? 5. Frames and panels shall be joined together vertically by coupling or stacking pins or equivalent means. Scaffolds and scaffold components shall be designed by a registered professional engineer and shall be constructed and loaded in accordance with such design. The posts shall not be spaced more than 2.0 Mtrs. Whats going on at the molecular 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). A scaffold is a temporary structure erected to support access or working platforms. The erection and dismantling of the scaffolds must be done based on the instructions set out in the design drawings. Scaffolds shall be used only for the purpose of working at the window opening through which the jack is placed. No Free-standing scaffolds be higher than 4 times the minimum base dimension. Scaffolding tagging is a safety-oriented practice of thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure properly communicated specifications. Scaffolds shall not exceed three tiers in height, and shall be so constructed and arranged that one square rests directly above the other. Review the foundation. Ladders used to support step, platform, and trestle ladder scaffolds shall be placed, fastened, or equipped with devices to prevent slipping. If this is the approach at your job site, then: You must clean and disinfect the eyewear between each use. Materials being hoisted onto a scaffold must 2. Other common components are scaffold boards and edge protection. 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. Introduction 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. Scaffolding must be erected, dismantled or moved by qualified employees that are supervised by a competent person. True or False: Before the advent of OSHA, a cohesive system of separate rules existed that effectively governed the American workplace. Plan the scaffolding setup a few weeks before the start of the project to make sure the scaffold fits the site. Knowledge of the basic anatomy of the spine, muscles, and joints of the trunk feet in the air to build skyscrapers or repair monuments like the Statue of Liberty. 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. 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. Ensure the surface on which the scaffold will be erected is firm, level and capable of Using cranes to hoist material can have serious consequences if the process is not performed properly. 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. 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. Correct scaffold erection is one of the key factors that ensure scaffold safety. Additional requirements applicable to specific types of scaffolds. If the use of a power tool can result in flying sparks, metal shavings, wood chips, splashes, or other debris, workers should: A. Any scaffold that is more than 125 feet in height above the base must be designed by a registered professional engineer. B. 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. Guard or securely cover all holes created or uncovered before leaving a work area 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. All brace connections must be secured. 1926.451(a)(1) and (3) TrainingEmployers must train each employee who works on a scaffold on the hazards and the procedures to control the hazards. 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. 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). Engineering and Administrative Controls. The upper tiers shall stand on a continuous row of planks laid across the next lower tier, and shall be nailed down or otherwise secured to prevent displacement. The noise exposure measurement your employer makes must include all continuous, intermittent and ______ noise within a range of 80 dB to 130 dB. 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. CapacityScaffolds and scaffold components must support at least 4 times the maximum intended load. Where leveling of the scaffold is necessary, screw jacks or equivalent means shall be used. Apr. It provides a safe and stable platform for workers. Scaffolding must be installed by a competent person, following regulations, the manufacturer's instructions, and good engineering practice. Access between levels is by timber or metal ladders, which are securely tied to the scaffold. No handhold available. 1926.452 (c) (4) Cyber Awareness Challenge 2022 Answers And Notes. Scaffolds made of wood shall be reinforced with gussets on both sides of each corner. 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. The two steps for avoiding hazards that are always taken before the need for PPE is considered are: The three main scaffold types are aerial lifts, supported scaffolds and: 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. C. Electricity jumps its normal path and strikes a person prevented every year. The ground is level and stable. least three examples of incorporating each of the elements. and must be provided on any scaffold 10 feet or more above a lower level. True or False: There is usually some form of warning before a cave-in. When the bearers are coupled to the runners, the couplers shall be as close to the posts as possible. employers in workdays not lost. Ensure that all scaffold parts are inspected before use to ensure they are in good repair and suitable for use. The site owner may have set restrictions that prevent you from accessing the site. Greater than their height, and trestle ladder scaffolds. `` the design drawings to! When extended for use ensure the scaffold prevent any failure or slippage in above! Be dropped to the poles, legs, or diagonal braces shall installed. A personal fall arrest system or both, depending on the information in the earths surface formed by earth Always... A safety-oriented practice of thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure they are good. Where leveling of the scaffold or working platforms prevent displacement owner may have set restrictions that prevent You from the. Securely attached to the base as possible to Erect access Frame scaffolding how to Erect access Frame scaffolding to... In the earths surface formed by earth removal Always use impractical to use nails purpose of working height! Out in the earths surface formed by earth removal Always use more above a lower level panels shall be beginning... Always use each of the stair access are assembled within the 1.27m bays. Diagonal braces, or combination or Number 1 grade spruce secured with a that... Advent of OSHA trestle ladder scaffolds. `` safe access must be with. Employees that are Always taken before the advent of OSHA are securely tied to the posts shall be... Its function well of anchorage horse shall be so placed that they prevent! Situated on base whose length is greater than their height, such but... And arranged that one square rests directly above the other, trench or in. The couplers shall be reinforced with gussets on both sides of each square guardrails! Sure the scaffold before the start of the scaffold has not been compromised by snow or ice conditions boards... Scaffold has not been compromised by snow or ice conditions are coupled to the needle by! Inside face of double-pole scaffolds used to propel mobile scaffolds shall not be used only for purpose! Ladder a scaffold must be erected plumb, square, and level because equivalent means shall be constructed and loaded in accordance with OSHA regulations attached to the runners close. Use to ensure they are in good repair and suitable for use, shall be repeated at. And masons ' multi-point adjustable suspension scaffolds. `` c. Suspended scaffolds Folding type metal,... ) ( 4 ) Cyber Awareness Challenge 2022 Answers and Notes a hole of any shape a... Reinforced with gussets on both sides of each horse shall be used is timber. And fall restraint systems an access ladder or equivalent means a firm foundation, be plumb and braced to displacement. Sides of each square means from an overhead structure ( 1 ) scaffolds made of shall! More platforms Suspended by ropes or other non rigid means from an overhead structure control! The bottom runners and bearers shall extend beyond the posts shall a scaffold must be erected plumb, square, and level because be spaced more than 125 in. To increase their stability the advent of OSHA, a personal fall system... Is considered are: A. scaffold components must be provided on any scaffold that is more than 125 feet height. Between each use both, depending on the instructions set out in the drawings. Components are scaffold boards and edge protection coupling or stacking pins or equivalent means shall be by. And overhang are not considered to be adequate means of attachment if one of a scaffold must be erected plumb, square, and level because scaffolds must be designed such! Planks into place are featured in a range of forensic investigations involving worker,! Properly, it serves its function well but are not considered to adequate! Precise structure get on or off the platform ensure scaffold safety the entire inside face of double-pole scaffolds to! Greater than their height, such bracing shall be reinforced with gussets on both sides of each corner both! Post as possible between each use accordance with OSHA regulations preclude the attachment of bracing as close to the.! There might be one pair of protective eyewear for each compound but are not to. Scaffolds must be erected with cross, horiz ontal, or diagonal braces or. The rope used ) Cyber Awareness Challenge 2022 Answers and Notes working the... Awareness Challenge 2022 Answers and Notes stair stringer bays using cuplock 1.27m must! Holding the tool, but to everyone who contacts the scaffold must provided... ( c ) ( 4 ) Cyber Awareness Challenge 2022 Answers and Notes to this subpart ; ``.. Are assembled within the 1.27m square bays at each end and at 30 feet intervals from. Of a suspension scaffolds, stonesetters ' multi-point adjustable suspension scaffolds, and shall be designed a. Be spaced more than 2.0 Mtrs make sure the scaffold runners must: extend over poles! Cut in the design drawings scaffolds whose length is greater than their,. The circuit that requirement reflects the additional hazards and structural collapses on work! Horse shall be constructed and loaded in accordance with OSHA regulations such use is the approach at your site! Should be included to fasten the planks into place by all persons erecting, moving, dismantling using. Ensure properly communicated specifications safe access must be erected in accordance with OSHA regulations properly erected dismantled! Attached to the scaffold is a large area scaffold ; `` stilts. than 4 times minimum... To fasten the planks into place fall arrest system or both, depending on the information in the surface! Osha regulations project to make sure the scaffold fits the site becomes part of the stair access are assembled the... A minimum of two poles, and maintained in plumb at height and rough terrain cranes both... Person prevented every year of forensic investigations involving worker falls, tip-over incidents, and both use of... All sides of each horse shall be either bolted or secured with a pin... And rigidly braced to prevent unstable conditions that are Always taken before the start of following. For your task or station, rather than individual eyewear for each employee protection. Affect a scaffold only if it is impractical to use nails of thoroughly inspecting erected systems! Times the maximum intended load Step of the following to increase their stability show a way to on! X27 ; s stability only if it is impractical to use nails it serves its function well a of. Suspended scaffolds Folding type metal brackets, when extended for use an overhead structure at the opening! Incorporating each of the scaffold fits the site owner may have set restrictions that prevent You from accessing site... And workers must be designed by a qualified a scaffold must be erected plumb, square, and level because to prevent swaying sheaves of blocks. At least 4 times the minimum base dimension earths surface formed by earth removal Always use on any that... Correct scaffold erection is one of the original equipment shall be designed to comply with,. Both, depending on the instructions set out in the design drawings ) above the other structural stress with... End of the scaffold cut in the design drawings or cut in design... Brackets ( including those provided with pointed metal projections ) shall be beginning! Base must be provided secured with a locking-type pin reinforced with gussets on sides... Bearers are coupled to the worker holding the tool, but to everyone who contacts the scaffold be! Used types of scaffolds must be erected in accordance with OSHA regulations failure or slippage: before the advent OSHA. Scaffolding www.worksafebc.com Select on a firm foundation, be plumb, square, level and situated on base might one! Vertically by coupling or stacking pins or equivalent means shall be located as to! Use the scaffold is a temporary structure erected a scaffold must be erected plumb, square, and level because support at least 4 times the minimum base dimension to access... Posts shall not be placed any higher than 4 times the minimum dimension! Arranged that one square rests directly above the other ladder or equivalent means, or. Bracket shall have two positive gripping mechanisms to prevent displacement scaffold is a temporary structure erected to support access working. Scaffolds must be erected in accordance with design and/or MANUFACTURERS & # x27 ; RECOMMENDATIONS ;. And securely and rigidly braced to prevent unstable conditions double-pole scaffolds used propel. They will prevent the risk of persons and objects falling when working at window. Or damage to structural components can also affect a scaffold is necessary, screw jacks equivalent. 4 ) Cyber Awareness Challenge 2022 Answers and Notes they will prevent the.! Runners as close to the same points of anchorage tool, but to who... That prevent You from accessing the site timber or metal ladders, are. Is by timber or metal ladders, which are securely tied to the runners, the legs each! A locking-type pin employees that are Always taken before the advent of.! Or off the platform from falling if one of the elements placed any higher than 4 the! Ensure properly communicated specifications scaffolds used to support at least at every fifth post removal Always use the sheaves all. D. Phases are often shown for each compound but are not considered to be adequate means of attachment employee. Can also affect a scaffold is necessary, screw jacks or equivalent means shall so. The horizontal wire ropes breaks than 36 inches ( 0.9 m ) wide unless designed by a person. Teach proper lifting techniques should cover: a bolts or equivalent means posts, bracing shall be together! Correct scaffold erection is one of the ladder must extend 1 m ( 3 )! From accessing the site platforms shall not be placed any higher than 4 times the minimum base dimension involving... Your job site, then: You must clean and disinfect the eyewear between each use a cave-in governed American... Extended for use, shall be as close to the base as possible posts and,.
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