components of scaffolding

1. Introduction, Basic Definitions, Major Components of Scaffolding Basic construction of scaffolding: general description of the British standard BS 5973-1993 Introduction, basic definitions, main components What is scaffolding? The scaffolding is a basic temporary structure that encompasses a possible existing or future structure by design that helps the construction worker to have a safe and ergonomic access to the work envisaged and is widely used in industries and private properties, up to a point. For the construction and use of a scaffold, optimal protection, supervision, etc. is required, since otherwise injuries could occur that could lead to death. The incidents also contribute to the loss of work hours, resources, human lives, effects on the environment and countless aspects of our personal and professional lives. There are several standards that could be considered for scaffolding construction, for example, the US OSHA standard. UU., The British standard, the Australian standard, etc. The personal and business choice and the implementation of the standard depend mainly on compliance with local legislation and, of course, as established by an individual standard. The British standard for the construction of a scaffold offers a definitive exposure to the relevant aspect of construction and safety from the beginning of construction and daily inspection that encourages safe

2. work practices and maintenance of the temporary structure built to meet the business or personal needs. Taking into account the most potential hazards associated with construction, maintenance and scaffolding work, the common problems observed are: to. Remove tables from the work platform without proper communication and comply with the standard requirement second. Taking the devices in the levels of the platform. do. Extraction of handrails and standing boards. re. Taking stairs away from their intended places and my. Do not stack the material correctly Definitions The basic definitions related to scaffolding are the following: Standard: A vertical component that supports the tube support on the ground. Ledger: A horizontal component / tube that supports a crossbar. Rear: a fixed tube through two or more components that balances the unbalanced lateral force and provides stability. Rotating flange: restricts the movement from left to right of the scaffolding taking into account the front view of the structure. Base plate: used to distribute the load from the standards to the ground. Plate / sole boards: a piece of wood suitable for extending the load. Elevation of the foot: an elevator is raised close to the ground to reinforce the base of the scaffold and allow the base to be cleared from the ground level. Scaffolding bay: the openings of the vertical / standard members along the front view of the scaffolding. A rule of thumb in the calculation of load to be followed is "The smaller the compartment, the higher the safe workload (SWL) of that scaffold". Height: the vertical distance taking into account the base and the upper assembly of the ledger and the crossbars.

3. Width: The width of a scaffold measured at right angles to the accounting books from the center of the standards. Another measure to calculate the width is to calculate the number of boards between two adjacent Standards. Length: the length of a scaffold between the standards located at the ends of a scaffolding structure. Lifting height: the vertical length between the main horizontal members that are called accounting books. Puncheon: a standard that is not supported from the ground. Spur: an inclined bearing tube used to reinforce structures due to a stunted or wobbly movement in the longitudinal or lateral direction. Needle: The needle is a cantilevered horizontal tube. Rear tube: Any bearing tube of relatively short length. Scarf: The length of a Upright / Standard on the work lift. Lapping: Lapping means joining standards or accounting books that reinforce the structure. Decking out: Means boarding off the work platform. Laminate: horizontal or vertical component fixed in inclined sheets of material, such as corrugated or plastic sheets attached to the scaffolding to provide protection. Standing table: a barricade installed at the level of the floor of the platform next to the "toe" that prevents the involuntary fall of tools, objects, small debris from the construction work to the platform and the lower grade. Railing: The railing is a control designed to fall from a height and has established vertical distances. Along the horizontal direction of a structure, there are usually a pair of railings, namely, upper and middle railings. There is also a stop protection rail and fall bars in place. Scaffolding support: this is another reinforcement process that is used when joining the scaffold to an existing structure / building for stability. A tie that is fixed to a building is called the physical tie. Reveal tie: tube fitted in the opening in the building. Tie: An added tube to secure the base of the standard. Scaffolding tubes: Tubes must be manufactured and tested in accordance with BS 1139 Part 1 specification for tubes for use in scaffolding construction. The set of scaffolding tubes comprises the following: to. Black steel

4. second. Galvanised steel do. Aluminum alloy tubes The details of the aluminum tubes are the following: Outside diameter 48.3 mm. Nominal thickness of the wall 4.5 mm. Weight 1.7 kg / m Heat treatment: the aluminum tubes are hardened and subjected to a weakening of the additional heat treatment. Apart from the aluminum tubes, the black and galvanized steel tubes are similar in their dimensions. However, the galvanized ones are preferred over others because they are resistant to corrosion and are protected from the effect of weathering. The details of the galvanized pipes are the following: Outside diameter 48.3 mm. Nominal thickness of the wall 4 mm. Weight 4.37 kg / m Length 6.4 m A precaution that must be followed when choosing the material of construction is that the different types of tubes should not be mixed together due to their difference in the properties of the materials, such as performance stress, elasticity, fatigue, the bulk module , etc. The end of the tube must be square to the axis of the tube. If it is necessary to cut it, the cut surface containing sharp edge should be cut to fillet; otherwise, it generates a good opportunity to cut, lacerate or worse during the construction and use of the structure. Before using, all tubes should be inspected for divisions, faults, corrosion, etc. The marginal value for the weight of said scaffold tube is 3.75 kg / m beyond which, the tube must be discarded from the group.