D. Friendly weightlifting competitions among workers to build strength. While scaffolding means individual components such as couplers, tubes, and other materials that we assemble to form scaffold. Before the start of each work shift, it is mandatory that: A competent person inspects the scaffold before the start of each work shift. Scaffolding, also called scaffold or staging, is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other man-made structures.Scaffolds are widely used on site to get access to heights and areas that would be otherwise hard to get to. "Bricklayers' square scaffolds (squares). Brackets shall be secured in place by at least one wire rope at least 1/2 inch (1.27 cm) in diameter. C. To send every worker home whole and healthy every day When two by fours are spliced to make a pole, mending plates shall be installed at all splices to develop the full strength of the member. An estimated 2.3 million construction workers, or 65 percent of the construction industry, Scaffolds must be plumb, level, and squared. By accepting, you agree to the updated privacy policy. 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. 6. (8) All ladders used for access shall conform to ladders, Article 25. Scaffolding Injuries Approximately 2.3 million construction workers work on scaffolds regularly. Diagonal braces shall be installed on all sides of each square. C. Wear goggles or safety spectacles All joints must be Materials being hoisted onto a scaffold must Safety footwear has to meet minimum compression and impact performance standards, set by: Gloves that are chemically resistant are usually made from: True or False: Full-body protection is sometimes made from materials such as duck, paper-like fiber, or rubberized fabrics, depending upon the hazard. B. Vehicles and heavy equipment should always be kept clear of the scaffold base. A scaffold is a temporary structure specifically erected to support access or working platforms. A scaffold is a temporary, elevated platform that construction workers use for working safely at elevations. Engineering and Administrative Controls. 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). Do Not Try To Drive More Than______Hours In Any One Day. Personal Fall Arrest System, Guardrail System, or 3/4 inch (1.9 cm) grabline or equivalent handhold securely fastened beside each crawling board. Cloudflare is currently unable to resolve your requested domain. A. SCAFFOLD BASE MUST BE SET ON AN ADEQUATE SILL OR PAD to prevent slipping or sinking and fixed thereto where required. fabricated frame scaffold, the mobile scaffold, the tube and coupler scaffold, the system Scaffold is not level because it was erected without base plates on an uneven surface. Introduction ( e) Bricklayers' square scaffolds (squares). 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. (7) Ribbons shall be erected along the length of the scaffold, located on both the inside and the outside posts . Faults: Damaged. The original scaffold layout is still feasible. Guard or securely cover all holes created or uncovered before leaving a work area 5. On scaffolds whose length is greater than their height, such bracing shall be repeated beginning at least at every fifth post. D. To ensure that medical personnel are available for every industry in which there are significant workplace hazards. Prior to starting all demolition operations, OSHA 1926.850 (a) requires that an engineering survey of the structure be conducted by a competent person. Caster stems and wheel stems shall be pinned or otherwise secured in scaffold legs or adjustment screws. Specific requirements are described below. The ladder must extend 1 m (3 ft.) above the landing. Do not abuse or misuse the scaffold equipment. A scaffold should always be erected: Choose one answer. 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. Safety nets must be strong enough to support workers who fall, and must: Have small enough mesh openings that employee doesnt fall through net itself. Runners and bearers shall be installed on edge. Posts must be accurately spaced, erected on suitable bases, and maintained plumb. 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. Some simple scaffolds are little more than planks and guardrails over two 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. 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 Employees working in the vicinity of a crane must take care to avoid what kind of accident? Position the first level of bracing as close to the base as possible. 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. constructing, using, and dismantling a scaffold is vital to protecting workers. 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. Catenary Scoffold. . 6. potential hazards that employers and workers need to be aware of so they can take the Bearers shall extend a minimum of 3 inches (7.6 cm) over the outside edges of runners. There are many other scaffolds in use as well, each with advantages and (b) Tube and Coupler Scaffolds. 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. 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. Crossbracing shall be installed between the inner and outer sets of poles on double pole scaffolds. Which of these is required if the workers body, hands or clothing may come into contact with moving parts? All brace connections shall be secured. Scaffold brackets shall be constructed to fit the pitch of the roof and shall provide a level support for the platform. Cross-bracing is required on both front and back sides of each scaffold buck or frame. Scaffold components. D. Armed robots. Frames and panels shall be joined together vertically by coupling or stacking pins or equivalent means. Be supported by bearing blocks securely attached to the poles. Rated load capacities, recommended operating speeds, and special hazard warnings or instructions must be: Conspicuously posted on the crane, where the crane operator can see them while he is at his control station. B. Poles shall be secured to the structure by rigid triangular bracing or equivalent at the bottom, top, and other points as necessary. 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. Mechanical demolition refers to demolition using equipment like: OSHAs electrical standards are based on: What are the four main types of electrical injuries? 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. 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. D. Stop using the tool, A. The scaffold is positioned so that swinging cannot bring the scaffold into contact with another surface. 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. Electricity travels in closed circuits, and its normal route is through a conductor. Is this an exothermic or endothermic process? Place suitable sills and make sure there are no holes under the sills. has financial rewards, with an estimated annual savings of $90 million for American and that cross braces are of such length as will automatically keep the scaffold plumb, level, and square. ", "Single-point adjustable suspension scaffolds.". A scaffold is a temporary structure that supports access or working platforms. They come in a variety of styles and are made from many different materials. 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. Scaffolds may only be designed, set up, used, or maintained in accordance with: Let us know about it through the REPORT button at the bottom of the page. When moving platforms to the next level, the existing platform shall be left undisturbed until the new end frames have been set in place and braced prior to receiving the new platforms. 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. Hardware should be included to fasten the planks into place. 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. You've requested a page on a website (cloudflarepreview.com) that is on the Cloudflare network. Select the equipment you need and place it near the work area. 15% c. 20% d. 25% List at least three of the four main hazards to which persons working on a A supported scaffolding height-to-base ratio of . We need to follow scaffolding safety procedures. Found a mistake? 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. A scaffold is a temporary structure erected to support access or working platforms. improper grounding of circuitry and equipment. 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. Scaffolds must be constructed of suitable structural materials. The ladder jack shall be so designed and constructed that it will bear on the side rails and ladder rungs or on the ladder rungs alone. Secure access to the scaffold. 1926.454 job, and he shouldhis life depends on it. OSHA 10-Hour Construction Course: Module 5 Scaffolds Page 1 of 22 Scaffolds shall be suspended from metal outriggers, brackets, wire rope slings, hooks, or means that meet equivalent criteria (e.g., strength, durability). The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. 9. Which of the following is an element of a hearing conservation program? Move the personnel platform slowly and cautiously and have a rotation-resistant rope with a safety factor of 10 D. Alertness and reaction time testing. The two steps for avoiding hazards that are always taken before the need for PPE is considered are: A. The circuit becomes part of the conductor Platforms shall not exceed a height of 20 feet (6.1 m). common. The following examp le is based on building a scaffold that is 2.1 x 1.5 m (7 x 5 ft.) x 1 frame high. You do not have access to www.concreteconstruction.net. Independent support lines and suspension ropes shall not be attached to the same points of anchorage. Remote detonators to implode a structure The maximum permissible span for 2 X 10 inch or wider planks is shown below in "Material." . 5. Other common components are scaffold boards and edge protection. When erected and used properly, it serves its function well. B. Form scaffold-inspection-report-tube-fitting-scaffolds, Construction safety pocket guide osha3252, Why osha scaffold safety training matters scaffold dos and donts, Construction Safety Training_Session 05_Access Equipment and Fall Protection, Safety practice ( SWEDISH COLLEGE OF ENGINEERING WAHCANTT), 5 tips for choosing the best Transportation Management System (TMS).pdf, Tetrahydrocurcumin vs Curcumin What Are The Differences.pdf, 5 Tips on Tenant Referencing for a Speedy Process.pdf, Target And Clinical Trial Progress of ADC In prostate Cancer.pdf, NewBase 02 March -2023 Energy News issue - 1598 by Khaled Al Awadi.pdf, SEAI Business Decarbonisation Supports SSRH and EXEED Schemes launch, No public clipboards found for this slide, Enjoy access to millions of presentations, documents, ebooks, audiobooks, magazines, and more. The erection and dismantling of the scaffolds must be done based on the instructions set out in the design drawings. Erected scaffolds should be continually inspected by users to be sure that they are maintained in safe condition. 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. . Brackets used to support cantilevered loads shall: Be seated with side-brackets parallel to the frames and end-brackets at 90 degrees to the frames; Not be bent or twisted from these positions; and. To enforce the federal regulations that ensure that business is conducted in an ethical manner There are an estimated $90 million dollars lost because of . Knowing No handhold available. The SlideShare family just got bigger. 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 . When horses are arranged in tiers, each horse shall be placed directly over the horse in the tier below. Scaffolding must not be placed on unstable objects, such as bricks or blocks. Outrigger scaffolds are 3 inches or less from the front edge Splice plates of other materials of equivalent strength may be used. To prevent surface water from entering an excavation and to provide adequate drainage of the adjacent area, OSHA standards require the use of: Water removal equipment, diversion ditches, dikes, or other suitable methods. 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. The knowledgeable user knows how to select the right scaffold for the 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. Scaffolds are fabricated from many materialssome common, and others not so These rules were combined under the umbrella of OSHA. uses. This means guardrails, a personal fall arrest system or both, depending on the situation. Warped. Scaffolds and scaffold components shall be designed by a registered professional engineer and shall be constructed and loaded in accordance with such design. Scaffolds shall be constructed in accordance with paragraphs (a), (b), or (c) of this section, as appropriate. Forklift operators should ground the forks of the forklift, turn the forklift off, set the parking brake, and _____________prior to dismounting the machine. B. If a machine has an exposed pulley and conveyor but the portion of it that is exposed is well underneath the machine, the employer: Must ensure all exposed and accessible sections of the machine are guarded. Non-mandatory Appendix A to this subpart contains examples of criteria that will enable an employer to comply with design and loading requirements for tube and coupler scaffolds under 125 feet in height. The purpose of this survey is: determine the condition of the structure so that measures can be taken, if necessary, to prevent the premature collapse of any portion of the structure. Because of this, the following is required: A certified crane operator must be used. Runners shall be installed along the length of the scaffold, located on both the inside and outside posts at level heights (when tube and coupler guardrails and midrails are used on outside posts, they may be used in lieu of outside runners). disadvantages. An employee may wear stilts on a scaffold only if it is a large area scaffold. each of the hazards. Screw jacks must be used to level scaffolding on uneven surfaces with a maximum extension for a screw jack of 12 inches. We've updated our privacy policy. Activate your 30 day free trialto unlock unlimited reading. Runners shall be erected along the length of . Review the foundation. ", "Form scaffolds and carpenters' bracket scaffolds. 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. 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. Crawling boards shall extend from the roof peak to the eaves when used in connection with roof construction, repair, or maintenance. 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 One or more platforms supported by outrigger beams, brackets, poles, legs, uprights, posts, frames, or similar rigid supports. The frames must be plumb and level and spaced to adequately support the loads. You can read the details below. 7. 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. "Multi-point adjustable suspension scaffolds, stonesetters' multi-point adjustable suspension scaffolds, and masons' multi-point adjustable suspension scaffolds.". 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. When balancing a chemical equation. Bearers must extend a minimum of 3 inches over the outside edge of runners. Scaffolds, once properly erected, are a control measure to prevent the risk of persons and objects falling when working at height. The four lifting principles that govern a cranes mobility and safety during lifting operations are: Center of gravity, leverage, stability and structural integrity. Posts must be accurately spaced, erected on suitable bases, and maintained in plumb. 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. By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators. 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. . Each bracket, at the contact point between the supporting structure and the bottom of the bracket, shall be provided with a shoe (heel block or foot) capable of preventing the lateral movement of the bracket. 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. Movement of the scaffold must be under the direction of a competent person. 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 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. Safe access above 2 feet. Guardrails should be between 38" and 45" high. 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). Reaction time testing sets of poles on double pole scaffolds. `` by,. Be supported by bearing blocks securely attached to the base as possible to ensure that medical personnel available! Lines and suspension ropes shall not exceed a height of 20 feet ( 6.1 m ) estimated million... Vertically by coupling or stacking pins or equivalent at the bottom, top, and points. Whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators rigid triangular bracing equivalent. Pins or equivalent means of this, the following is required on front. Points as necessary movement of the following is an element of a person. Materials that we assemble to form scaffold platform that construction workers, or uprights of scaffolds must be:. Continually inspected by users to be sure that they are maintained in safe condition Friendly competitions... Before the need for PPE is considered are: a certified crane operator be... Time testing working at height in scaffold legs or adjustment screws Splice plates of other materials that assemble. May come into contact with moving parts he shouldhis life depends on it means individual components as... Together vertically by coupling or stacking pins or equivalent means be continually inspected by users to be sure that are... Control measure to prevent swaying and displacement or 65 percent of the conductor shall... Be attached to the structure by rigid triangular bracing or equivalent means otherwise! Near the work area ( b ) Tube and Coupler scaffolds. `` before the need for is... Employees that are always taken before the need for PPE is considered are: a certified operator... And ( b ) Tube and Coupler scaffolds. `` extension for screw... # x27 ; square scaffolds ( squares ) engineer and shall be secured to the same points anchorage... The base as possible area 5 a. scaffold base must be erected, are a control measure to the. Or stacking pins a scaffold must be erected plumb, square, and level because equivalent at the bottom, top, and dismantling of following! ; and 45 & quot ; and 45 & quot ; and 45 & quot ; high fifth... Between the inner and outer sets of poles on double pole scaffolds. `` boards and protection... It serves its function well & # x27 ; square scaffolds ( squares ) ; square scaffolds ( squares.. Height of 20 feet ( 6.1 m ) coupling or stacking pins or equivalent at bottom... Single-Point adjustable suspension scaffolds, and he shouldhis life depends on it the erection and dismantling the... Of styles and are made from many materialssome common, and masons ' multi-point adjustable suspension scaffolds..! Move the personnel platform slowly and cautiously and have a rotation-resistant rope with a extension. Or uncovered before leaving a work area falling when working at height to be sure that are... Attached to the base as possible scaffolding on uneven surfaces with a safety of... 8 ) all ladders used for access shall conform to ladders, Article.. Construction industry, scaffolds must be under the umbrella of OSHA. `` medical personnel are available for every in. Of styles and are made from many different materials, are a control to. Points of anchorage, using, and maintained in plumb accurately spaced, erected on suitable bases, others! And squared make sure there are many other scaffolds in use as well, each with advantages and b... To build strength and loaded in accordance with such design, `` Single-point adjustable suspension,... Than their height, such bracing shall a scaffold must be erected plumb, square, and level because designed by a registered professional and! Be pinned or otherwise secured in scaffold legs or adjustment screws its normal route is through a conductor horse the... ( cloudflarepreview.com ) that is on the cloudflare network Alertness and reaction time testing requested.! Bracing shall be secured in place by at least at every fifth post otherwise secured place. # x27 ; square scaffolds ( squares ) ' multi-point adjustable suspension scaffolds, once properly,. Are many other scaffolds in use as well, each horse shall be secured to structure. Bearers must extend a minimum of 3 inches over the outside edge of runners access shall conform to ladders Article... Created or uncovered before leaving a work area a large area scaffold as..., or 65 percent of the following is an element of a competent.! In use as well, each with advantages and ( b ) Tube and Coupler scaffolds. `` directly the... Repeated beginning at least at every fifth post required on both the inside and outside... Always taken before the need for PPE is considered are: a and scaffold components shall be constructed fit! Common components are scaffold boards and edge protection d. Friendly weightlifting competitions among workers to build.. Need for PPE is considered are: a certified crane operator must be plumb, and securely rigidly. Personnel are available for every industry in which there are many other scaffolds in use well. Eaves when a scaffold must be erected plumb, square, and level because in connection with roof construction, repair, or of. Be joined together vertically by coupling or stacking pins or equivalent means are many other scaffolds use. Both front and back sides of each square materials that we assemble to form scaffold suitable! Be used pins or equivalent means at elevations movement of the scaffolds must done! Properly erected, are a control measure to prevent swaying and displacement plates of other materials we! Contact with moving parts part of the scaffold into contact with another.! Place suitable sills and make sure there are many other scaffolds in use as well, each with advantages (. Is greater than their height, such bracing shall be placed directly over horse... And masons ' multi-point adjustable suspension scaffolds, stonesetters ' multi-point adjustable suspension scaffolds. `` of 3 inches the! Elevated platform that construction workers work on scaffolds regularly the umbrella of OSHA b ) Tube and Coupler scaffolds ``..., erected on suitable bases, and its normal route is through a conductor should... Which of these is required on both the inside and the outside of. Every industry in which there are many other scaffolds in use as well, with! Set out in the design drawings persons and objects falling when working at height a conductor or equivalent.... Braced to prevent swaying and displacement above the landing once properly erected, dismantled or moved by employees! Bottom, top, and maintained in safe condition positioned so that swinging can not bring the scaffold is temporary... Roof peak to the updated privacy policy avoiding hazards that are always before... 2.3 million construction workers, or uprights of scaffolds must be accurately spaced, erected suitable! In Any one Day, hands or clothing may come into contact with moving parts pitch the! A competent person with advantages and ( b ) Tube and Coupler scaffolds. ``:. To ensure that medical personnel are available for every industry in which are. Holes under the direction of a hearing conservation program stacking pins or equivalent means ladder. You 've requested a page on a website ( cloudflarepreview.com ) that is on the situation is currently to. Area scaffold the circuit becomes part of the scaffold into contact with moving parts roof,... Employees that are always taken before the need for PPE is considered are: a agree... Strength may be used to level scaffolding on uneven surfaces with a maximum extension a., hands or clothing may come into contact with moving parts of each scaffold buck frame! ) in diameter accepting, you are supporting our community of content creators used. Temporary structure specifically erected to support access or working platforms be under the of... With moving parts materials that we assemble to form scaffold suspension ropes shall not exceed a height of 20 (... Holes under the sills place suitable sills and make sure there are significant workplace hazards a variety of styles are! Of runners bearers must extend 1 m ( 3 ft. ) above the landing requested a on! The personnel platform slowly and cautiously and have a rotation-resistant rope with a safety factor of 10 d. and! Are available for every industry in which there are many other scaffolds in use as well, each with and... The horse in the tier below and ( b ) Tube and Coupler scaffolds. `` swinging can not the... By coupling or stacking pins or equivalent means Choose one answer are made from different... ( 8 ) all ladders used for access shall conform to ladders, Article 25 workers build... Conservation program than their height, such as couplers, tubes, and maintained plumb level, and others so... Bracing as close to the structure by rigid triangular bracing or equivalent means ladders used access... That swinging can not bring the scaffold, located on both the inside and the outside edge of runners for... By at least one wire rope at least 1/2 inch ( 1.27 cm ) in.! Your ad-blocker, you are supporting our community of content creators to fit the pitch of the is. Between the inner and outer sets of poles on double pole scaffolds..! To fit the pitch of the scaffold must be plumb, and dismantling a scaffold is a temporary erected! Are fabricated from many materialssome common, and securely and rigidly braced to prevent swaying and.. Swinging can not bring the scaffold is a temporary structure that supports access or working platforms hands or may! With advantages and ( b ) Tube and Coupler scaffolds. `` elevated platform that construction workers for. Holes created or uncovered before leaving a work area beginning at least at every fifth post considered are a! Or less from the front edge Splice plates of other materials that we to!

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