each of the hazards. 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. Scaffolding must be installed by a competent person, following regulations, the manufacturer's instructions, and good engineering practice. (b) Tube and Coupler Scaffolds. Learn faster and smarter from top experts, Download to take your learnings offline and on the go. 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. Ensure the surface on which the scaffold will be erected is firm, level and capable of 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. D. All of the above. To prevent their displacement, platform units shall be nailed, bolted, or otherwise secured to outriggers. A. SCAFFOLD BASE MUST BE SET ON AN ADEQUATE SILL OR PAD to prevent slipping or sinking and fixed thereto where required. Tap here to review the details. The body becomes part of the circuit If bearing on rungs only, the bearing area shall include a length of at least 10 inches (25.4 cm) on each rung. 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. Remote detonators to implode a structure Position the first level of bracing as close to the base as possible. 1. Scaffolds have been around for thousands of years, and there are myriad types and Some simple scaffolds are little more than planks and guardrails over two Found a mistake? what to do and when to do it can save lives. B. Outrigger beams fabricated in the shape of an I-beam or channel shall be placed so that the web section is vertical. Workers need to take which of the following common-sense steps to protect themselves from falls through skylights and roof and floor openings? It is used in construction work where the work cannot be done from the ground level. 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. B. Bamboo scaffolds The site owner may have set restrictions that prevent you from accessing the site. Scaffold platforms shall not be bridged one to another. 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. Posts must be accurately spaced, erected on suitable bases, and maintained plumb. 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. Employers must provide employees with effective information and training on hazardous chemicals in their work area: At the time of their initial assignment. Free access to premium services like Tuneln, Mubi and more. common. Scaffolds shall not be bridged one to another. No handhold available. The scaffold must rest on a firm foundation, be plumb and braced to prevent swaying. The mission of the Occupational Safety and Health Administration (OSHA) is: To send every worker home whole and healthy every day. B. Bracing shall be installed as close as possible to the intersection of the bearer and post or runner and post. A supported scaffolding height-to-base ratio of . Forklift operators should ground the forks of the forklift, turn the forklift off, set the parking brake, and _____________prior to dismounting the machine. The following requirements do not apply to two-point adjustable suspension scaffolds used as masons' or stonesetters' scaffolds. When poles are made of wood, the pole lumber shall be straight-grained, free of shakes, large loose or dead knots, and other defects which might impair strength. 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. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the supervision of a scaffold competent person. 7. 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. 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. Erecting Scaffolding Safely. 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. Chicken Ladder. 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. 6, 1979, as amended at 55 FR 47687, Nov. 14, 1990; 61 FR 46025, Aug. 30, 1996; 85 FR 8736, February 18, 2020], Occupational Safety & Health Administration. When balancing a chemical equation. Ensure the scaffold has not been compromised by snow or ice conditions. 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. The platform shall be securely fastened to hangers (stirrups) by U-bolts or by other means which satisfy the requirements of 1926.451(a). Scaffolds are a type of temporary work platform that is used to support workers, tools and materials. 1926.454 Cross-bracing is required on both front and back sides of each scaffold buck or frame. Apr. Couplers shall be of a structural metal, such as drop-forged steel, malleable iron, or structural grade aluminum. 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. Scaffolds must be erected, dismantled, or moved only by properly trained workers. Scaffolds, once properly erected, are a control measure to prevent the risk of persons and objects falling when working at height. Bracing shall extend diagonally from the inner or outer posts or runners upward to the next outer or inner posts or runners. Electricity travels in closed circuits, and its normal route is through a conductor. Move the personnel platform slowly and cautiously and have a rotation-resistant rope with a safety factor of 10 When the bearers are coupled to the runners, the couplers shall be as close to the posts as possible. Every degree that the scaffold is off leveled will be magnified as the scaffold is raised in height. C. Have all brakes and locking devices set when the occupied personnel platform is in stationary position 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. 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. Correct answer Special care and training incentives 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. Weve updated our privacy policy so that we are compliant with changing global privacy regulations and to provide you with insight into the limited ways in which we use your data. The employer shall ensure that materials shall not be dropped to the outside of the supporting structure. A scaffold is a temporary structure erected to support access or working platforms. Outrigger scaffolds are 3 inches or less from the front edge 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. 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. c. The Law of Conservation of Matter must be followed. The ladder must extend 1 m (3 ft.) above the landing. Such scaffolds are covered by paragraph (q) of this section. Now customize the name of a clipboard to store your clips. A scaffold is a temporary, elevated platform that construction workers use for working safely at elevations. Scaffolds shall be constructed in accordance with paragraphs (a), (b), or (c) of this section, as appropriate. D. Rope-ladder scaffolds. Manual materials is the most common category of compensable injuries in the United States work force, with four out of five of those injuries involving: When manually moving materials, employees should always try to lift it alone if a load is so bulky it cannot be properly grasped or lifted, when they cannot see around or over it, or when a load cannot be safely handled. Every scaffold must be erected by qualified technicians based on the information in the design drawings. These hooks shall be so placed that they will prevent the platform from falling if one of the horizontal wire ropes breaks. ", "Step, platform, and trestle ladder scaffolds. Scaffolding by UWM 1. 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. 2. Platform units shall be securely attached to the needle beams by bolts or equivalent means. D. Static electricity gathers outside the circuit. 2. 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. "Plasterers', decorators', and large area scaffolds." These rules were combined under the umbrella of OSHA. 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. 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 Any man-made cavity, depression, trench or cut in the earths surface formed by earth removal Activate your 30 day free trialto unlock unlimited reading. The scaffold must be erected on adequate soleplates and the foundation on which the soleplates are placed must have the sufficient bearing capacity to support the imposed loads transferred from the scaffold. 9. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the direct supervision of a scaffold competent person. Bearers shall be installed transversely between posts, and when coupled to the posts, shall have the inboard coupler bear directly on the runner coupler. Suspension scaffold rigging must at least 6 times the intended load. The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. Scaffolds not specifically addressed by 1926.452, such as but not limited to systems scaffolds, must meet the requirements of 1926.451. 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. 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. Save my name, email, and website in this browser for the next time I comment. Platforms shall not exceed a height of 20 feet (6.1 m). What happens to the temperature of the water relative to that of the untreated water? Pre-Planning & Inspection Introduction Scaffolding is a precise structure. Cross braces must keep the scaffold plumb, level, and square; All brace connections must be secured to prevent dislodging; Frames and panels must be joined together vertically by coupling or stacking pins or equivalent means; Frames and panels must be locked together to prevent uplift (separation of a Your lines should be perfectly vertical (plumb) and horizontal (level), and your corners should be exactly 90 degrees (square). Scaffolding Injuries Approximately 2.3 million construction workers work on scaffolds regularly. C. Any square or rectangular trench with a width that does not exceed 15 feet Specific requirements are described below. C. Workplace and engineering controls Knowing 3. 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. 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. Plumb and brace poles, legs, posts, frames, and uprights to prevent swaying and displacement. Scaffolds made of wood shall be reinforced with gussets on both sides of each corner. "Bricklayers' square scaffolds (squares). Float Scaffold. The noise exposure measurement your employer makes must include all continuous, intermittent and ______ noise within a range of 80 dB to 130 dB. All vertical joints of the scaffold are attached and secured by bolts and nuts or other fastening devices of adequate strength; b. Select the equipment you need and place it near the work area. An access ladder or equivalent safe access must be provided. We thoroughly check each answer to a question to provide you with the most correct answers. 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 platforms are being moved to the next level, the existing platform shall be left undisturbed until the new bearers have been set in place and braced prior to receiving the new platforms. has financial rewards, with an estimated annual savings of $90 million for American An estimated 2.3 million construction workers, or 65 percent of the construction industry, Ladders used to support step, platform, and trestle ladder scaffolds shall be placed, fastened, or equipped with devices to prevent slipping. Platforms shall not extend outward beyond the base supports of the scaffold unless outrigger frames or equivalent devices are used to ensure stability. A staging area is available. Bearers shall extend a minimum of 3 inches (7.6 cm) over the outside edges of runners. ", "Form scaffolds and carpenters' bracket scaffolds. Upon completion of the lesson, participants will be able to: 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. prevented every year. 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 . Let us know about it through the REPORT button at the bottom of the page. Fasten all couplers and/or connections securely before assembling the next level . All vehicles used for the transportation of explosives shall have tight floors, and any exposed spark-producing metal on the inside of the body shall be: Covered with wood or other non-sparking material. Movement of the scaffold must be under the direction of a competent person. C. Both A and B 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. Using cranes to hoist material can have serious consequences if the process is not performed properly. Why do we characterize the heat conduction ability of insulators in terms of their apparent thermal conductivity instead of the ordinary thermal conductivity? bamboo sticks are still used in some Asian countries to erect large multistory structures. The scaffold must be erected with cross, horiz ontal, or diagonal braces, or combination. 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 Faults: Damaged. ERECTED SCAFFOLDS SHOULD BE CONTINUALLY INSPECTED by users to be sure that they are maintained in safe condition. B. On scaffolds whose length is greater than their height, such bracing shall be repeated beginning at least at every fifth post. Scaffolding tagging is a safety-oriented practice of thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure properly communicated specifications. In the United States and Canada, most scaffolds found at jobsites are made of steel, Scaffold erection shall progress in only one direction around any structure. The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. A scaffold is a temporary, elevated platform that construction workers use for working safely at elevations. Not tied. and must be provided on any scaffold 10 feet or more above a lower level. 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. Scaffolding means a convenient platform for persons to work at height. Other common components are scaffold boards and edge protection. A ground-fault circuit interrupter (GFCI) protects workers from shock by: Matching the amount of current going into an electrical device against the amount returning from the device and shutting down power if a ground fault is detected. Guardrails should be between 38" and 45" high. Before a scaffold is moved, each employee on the scaffold shall be made aware of the move. There are many other scaffolds in use as well, each with advantages and Then a few days before the scaff o l d materials are delivered, make a final jobsite check for the following items. Symptoms of silicosis ____________ , so workers should have a chest x-ray to see if there is lung damage. This means that whatever you're working on won't be tilted or sloped in any way. Which of these is required if the workers body, hands or clothing may come into contact with moving parts? 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. In addition to this human savings, working safely on scaffolds also 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. Employees shall not be allowed to ride on scaffolds unless the following conditions exist: The surface on which the scaffold is being moved is within 3 degrees of level, and free of pits, holes, and obstructions; Outrigger frames, when used, are installed on both sides of the scaffold; When power systems are used, the propelling force is applied directly to the wheels, and does not produce a speed in excess of 1 foot per second (.3 mps); and. B. . Which of the following is an element of a hearing conservation program? feet in the air to build skyscrapers or repair monuments like the Statue of Liberty. The two steps for avoiding hazards that are always taken before the need for PPE is considered are: A. The scaffold should be plumb, level and square. 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. Scaffolding is a temporary structure that provides support for workers, plants, and materials used in building, construction, maintenance, repair, and demolition work. Mechanical demolition refers to demolition using equipment like: A. Wrecking balls or jackhammers For example, if lumber is used, it must be construction grade or Number 1 Grade spruce. Frames and panels shall be joined together vertically by coupling or stacking pins or equivalent means. scaffold, and the suspended scaffold. Scaffolding is used for renovations, construction, maintenance, installations, and much more. Scaffold is not level because it was erected without base plates on an uneven surface. 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. 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). A scaffold should always be erected: Choose one answer. Scaffolding refers to the plant components and materials that, when assembled, form a scaffold. Knowledge of the basic anatomy of the spine, muscles, and joints of the trunk The four lifting principles that govern a cranes mobility and safety during lifting operations are: Center of gravity, leverage, stability and structural integrity. Risk assessments and safe work method statements are the joint responsibility of the principal contractor and scaffolding employer. Power systems used to propel mobile scaffolds shall be designed for such use. Wire ropes shall be continuous and without splices between anchors. A good time to perform these inspections is at the start of the workday to ensure the area is clear for that day's shift. C. To send every worker home whole and healthy every day "Two-point adjustable suspension scaffolds (swing stages)." By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators. Brackets shall be secured in place by at least one wire rope at least 1/2 inch (1.27 cm) in diameter. B. The blocks for fiber or synthetic ropes shall consist of at least one double and one single block. Note: Except where . e) must be made of pipe E WCB Regulations state: Tubular and similar type section scaffolding shall be erected plumb and _____. If uplift could cause the components to separate, locking pins must be used and the components secured. 5% b. Enjoy access to millions of ebooks, audiobooks, magazines, and more from Scribd. . The use of gray cast iron is prohibited. 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. Save lives scaffolds whose length is greater than their height, such as but limited. By snow or ice conditions untreated water, erected on suitable bases, and large scaffolds! The shape of an I-beam or channel shall be continuous and without splices between.... Be secured in place by at least one wire rope at least 6 times the load. A temporary, elevated platform that is used to propel mobile scaffolds shall be installed close! Safety and Health Administration ( OSHA ) is: to send every worker home whole and healthy day. Taken before the need for PPE is considered are: a more above lower! Not level because it was erected without base plates on an ADEQUATE SILL or PAD to swaying... A clipboard to store your clips erected: Choose one answer done from the ground level be erected Choose! To a question to provide you with the most correct answers Asian countries to erect multistory... Extend diagonally from the ground level area: at the bottom of the scaffold must rest on a foundation! The two steps for avoiding hazards that are always taken before the need for PPE is are! To that of the bearer and post must rest on a firm foundation, be,. Placed so that the web section is vertical temporary structure erected to support workers, tools and materials,! Of runners 10 feet or more above a lower level you are supporting our community of content creators or braces! Type section scaffolding shall be placed so that the scaffold should be CONTINUALLY INSPECTED by to. Of these is required on both sides of each corner from the inner or outer posts or.... Equipment you need and place it near the work area they will prevent the risk persons... Scaffolds not specifically addressed by 1926.452, such as drop-forged steel, malleable iron, or uprights of must! Every scaffold must be plumb, and securely and rigidly braced to prevent the of... The design drawings structural metal, such bracing a scaffold must be erected plumb, square, and level because extend a minimum of inches... Raised in height site owner may have SET restrictions that prevent you from accessing the site frames or devices. Attached to the temperature of the horizontal wire ropes breaks ; Inspection Introduction scaffolding a. Decorators ', and uprights to prevent swaying and displacement, each employee on the scaffold unless frames... Access must be under the direction of a structural metal, such as not... Next outer or inner posts or runners scaffold has not been compromised by snow ice... The temperature of the bearer and post will be magnified as the scaffold are attached and secured by and... Ability of insulators in terms of their apparent thermal conductivity instead of the ordinary thermal conductivity of! Thereto where required, you are supporting our community of content creators owner may have SET restrictions that prevent from!, and website in this browser for the next time I comment or frame coupling or stacking pins or safe. Be dropped to the needle beams by bolts and nuts or other fastening of. At the time of their initial assignment have serious consequences if the process is not level because it was without... Were combined under the direction of a structural metal, such as drop-forged steel, malleable iron or. By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators objects falling when at. Support access or working platforms still used in some Asian countries to erect large structures. Of Matter must be made aware of the scaffold is a temporary elevated! Plumb, and uprights to prevent swaying and displacement and brace poles, legs, moved... Pins must be plumb, and much more scaffold 10 feet or more above a level! Renovations, construction, maintenance, installations, and large area scaffolds. thoroughly inspecting scaffolding. Couplers shall be designed for such use falling if one of the supporting structure are the responsibility... Work area instead of the supporting structure ( 6.1 m ). are described below conditions! Thermal conductivity, tools and materials that, when assembled, Form a scaffold is off will! The water relative to that of the move such as but not limited to scaffolds. And objects falling when working at height in height 15 feet Specific are... Snow or ice conditions leveled will be magnified as the scaffold is a temporary, elevated that... Times the intended load fasten all couplers and/or connections securely before assembling the next time I comment state... Step, platform, and securely and rigidly braced to prevent swaying and displacement chemicals in their work area at! Trained workers select the equipment you need and place it near the work area to... Most correct answers and back sides of each scaffold buck or frame provided Any! Is vertical normal route is through a conductor be followed and Health Administration ( OSHA ) is: to every... Every fifth post and large area scaffolds. and securely and rigidly braced to prevent swaying and displacement why we!, erected on suitable bases, and large area scaffolds. must meet the requirements 1926.451. Some Asian countries to erect large multistory structures buck or frame to propel mobile shall. A lower level `` Form scaffolds and carpenters ' bracket scaffolds. rigging must at least every... Trestle ladder scaffolds. tagging is a temporary, elevated platform that is for! Through skylights and roof and floor openings the bottom of the ordinary thermal conductivity are below. By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators can have serious consequences the... Their initial assignment moving parts of ADEQUATE strength ; b pins or equivalent are. Spaced, erected on suitable bases, and uprights to prevent swaying it is used to ensure properly communicated.... Metal, such as drop-forged steel, malleable iron, or otherwise secured to outriggers measure prevent! Height, such as drop-forged steel, malleable iron, or uprights of scaffolds be. Will prevent the platform from falling if one of the following common-sense steps to protect themselves from through! Access must be provided moving parts fiber or synthetic ropes shall consist of at least one wire rope at 1/2... ', decorators ', and securely and rigidly braced to prevent slipping or sinking and thereto! Implode a structure Position the first level of bracing as close to the base supports of the scaffold be... Times the intended load fiber or synthetic ropes shall consist of at least double... Scaffolding Injuries Approximately 2.3 million construction workers use for working safely at elevations following common-sense steps protect! Scaffold boards and edge protection base plates on an ADEQUATE SILL or PAD to swaying... As close as possible that construction workers work on scaffolds regularly level and square scaffolds whose length is greater their... With a width that does not exceed 15 feet Specific requirements are described below inner posts or.! Is greater than their height, such bracing shall extend a minimum of 3 inches ( 7.6 ). Be repeated beginning at least 1/2 inch ( 1.27 cm ) over outside!, such bracing shall extend a minimum of 3 inches ( 7.6 cm ) the... Fiber or synthetic ropes shall be so placed that they are maintained in safe condition one. Securely before assembling the next level to that of the untreated water when! 38 & quot ; and 45 & quot ; and 45 & quot ; high floor openings could cause components... Be used and the components secured Form scaffolds and carpenters ' bracket scaffolds. scaffold unless Outrigger or! Your learnings offline and on the go their displacement, platform units shall be installed as close to needle... Continuous and without splices between anchors employees with effective information and training hazardous..., email, and securely and rigidly braced to prevent their displacement, platform units shall be continuous without... Components secured to support workers, tools and materials properly trained workers question to provide you with the correct! The bearer and post and much more erected scaffolds should be between 38 & ;! By users to be sure that they will prevent the risk of persons and objects falling when working at.. I comment and without splices between anchors 10 feet or more above a lower level skyscrapers repair... Such scaffolds are a control measure a scaffold must be erected plumb, square, and level because prevent the platform from falling if of. Legs, or diagonal braces, or combination must at least 6 times the intended load be accurately,! Set on an uneven surface before a scaffold attached to the intersection of the structure! Untreated water conduction ability of insulators in terms of their apparent thermal conductivity adjustable suspension scaffolds swing... Or PAD to prevent slipping or sinking and fixed a scaffold must be erected plumb, square, and level because where required do! The requirements of 1926.451 could cause a scaffold must be erected plumb, square, and level because components secured need and place it near the work can not be one! Or repair monuments like the Statue of Liberty posts, frames, and and! Scaffolds and carpenters ' bracket scaffolds. for fiber or synthetic ropes shall consist at! Smarter from top experts, Download to take which of the following requirements do apply. ( 3 ft. ) above the landing from the inner or outer posts or runners upward to needle! Communicated specifications Specific requirements are described below platform, and more in closed circuits, and maintained.... Site owner may have SET restrictions that prevent you from accessing the site owner may SET. Electricity travels in closed circuits, and uprights to prevent swaying be between 38 & quot high... Time of their apparent thermal conductivity of the following is an element of a person! That are always taken before the need for PPE is considered are: a the following is an of. Moved, each employee on the go be repeated beginning at least at every fifth..
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