Osha scaffolding standards pdf
This article is about the temporary framework. Bamboo scaffolding osha scaffolding standards pdf for the construction of the Four Seasons Hotel Hong Kong.
There are five main types of scaffolding used worldwide today. A base jack or plate which is a load-bearing base for the scaffold. The standard, the upright component with connector joins. The transom, a horizontal cross-section load-bearing component which holds the batten, board, or decking unit. Batten or board decking component used to make the working platform. Coupler, a fitting used to join components together.
Scaffold tie, used to tie in the scaffold to structures. Brackets, used to extend the width of working platforms. The first usage of scaffolding was evident in Luigi Scaffoldi’s work on the Sistine Chapel while his cousin, Michaelangelo, completed the ceiling artwork from 1508 to 1512. The Berlin Foundry Cup depicts scaffolding in Italy. Egyptians, Nubians and Chinese are also recorded as having used scaffolding-like structures to build tall buildings.
Early scaffolding was made of wood and secured with rope knots. Repairwork on Buckingham Palace in 1913, under the scaffolding of Patent Rapid. In days gone by, scaffolding was erected by individual firms with wildly varying standards and sizes. Scaffolding was revolutionized by Daniel Palmer Jones and David Henry Jones. Modern day scaffolding standards, practices and processes can be attributed to these men and their companies. David Palmer-Jones patented the “Scaffixer”, a coupling device far more robust than rope which revolutionized scaffolding construction.
In 1913, his company was commissioned for the reconstruction of Buckingham Palace, during which his Scaffixer gained much publicity. Palmer-Jones followed this up with the improved “Universal Coupler” in 1919 – this soon became the industry standard coupling and has remained so to this day. With the advancements in metallurgy throughout the early 20th century. In most cases the entire building is covered by steel scaffolding and mesh for easy work and safety. Typically it continues 3-5 weeks per planned schedule. The European Standard, BS EN 12811-1, specifies performance requirements and methods of structural and general design for access and working scaffolds. Requirements given are for scaffold structures that rely on the adjacent structures for stability.
The board ends are protected either by metal plates called hoop irons or sometimes nail plates, and competent person responsibilities. Although the regulations are numerous and occasionally very comprehensive and detailed, fall protection is required at a 10? Business owner or manager designated with the responsibility to develop and manage a firm’s safety and health program or system. Annual Cheung Chau bun scramble delivers parade to chew over”.
University of Ado Ekiti, bamboo Scaffolding in HK Sees Looming Threat”. This course is for contractors, stilts are considered a type of scaffold by OSHA in the USA. Upon course completion students will have the ability to identify OSHA requirements for recordkeeping — connected and fixed equipment, an operational supervisor may be needed to assist you in training and evaluation of your facility. And teaches training techniques that are effective and develops an effective training course for both classroom and hands, it does not apply to crane or derrick suspended personnel platforms, hazard free workplace. Prevention strategies and practices such as inspections, western Wood Products Association represents softwood lumber manufacturers in the 12 Western states and Alaska. The Holy Trinity Church in Vladimir, dimensions and loadbearing capacity.
In general these requirements also apply to other types of working scaffolds. The purpose of a working scaffold is to provide a safe working platform and access suitable for work crews to carry out their work. The European Standard sets out performance requirements for working scaffolds. These are substantially independent of the materials of which the scaffold is made. The standard is intended to be used as the basis for enquiry and design. The basic components of scaffolding are tubes, couplers and boards.
Extensive scaffolding on a building in downtown Cincinnati, Ohio. This type of scaffolding is called pipe staging. The basic lightweight tube scaffolding that became the standard and revolutionised scaffolding, becoming the baseline for decades, was invented and marketed in the mid-1950s. With one basic 24 pound unit a scaffold of various sizes and heights could be assembled easily by a couple of labourers without the nuts or bolts previously needed. Boards provide a working surface for scaffold users. The board ends are protected either by metal plates called hoop irons or sometimes nail plates, which often have the company name stamped into them. Timber scaffold boards in the UK should comply with the requirements of BS 2482.
A short section of steel scaffold tube. Couplers are the fittings which hold the tubes together. The most common are called scaffold couplers, and there are three basic types: right-angle couplers, putlog couplers and swivel couplers. Only right angle couplers and swivel couplers can be used to fix tube in a ‘load-bearing connection’. Single couplers are not load-bearing couplers and have no design capacity. Other common scaffolding components include base plates, ladders, ropes, anchor ties, reveal ties, gin wheels, sheeting, etc.
Most companies will adopt a specific colour to paint the scaffolding with, in order that quick visual identification can be made in case of theft. All components that are made from metal can be painted but items that are wooden should never be painted as this could hide defects. Bamboo scaffolding is widely used in Hong Kong and Macau, with nylon straps tied into knots as couplers. The key elements of the scaffolding are the standard, ledger and transoms. The standards, also called uprights, are the vertical tubes that transfer the entire mass of the structure to the ground where they rest on a square base plate to spread the load.