View BS 59731993 Code of practice for access and working scaffolds and special scaffold structures in st from BIO 5973 at The Hong Kong Polytechnic.
BS Code of practice for access and working scaffolds and special scaffold structures in steel Covers scaffolds and temporary structures such as. Documents Similar To BS BS Metal Scaffolding Part 2-Sec Uploaded by. tv-loc. Scaffolding Load Design. Uploaded by. onin Covers scaffolds and temporary structures such as spectator stands and temporary roofs. Reflects CEN published documents for tube and fittings. Document.
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Boards which are less than 1. The ledger or the transom may be fixed to each other instead of to the standards. There are two points on each beam which apply loads to the building: Stabilizing to give the necessary strength to bd, as described in this subclause, will normally provide sufficient rigidity, so that a narrow birdcage would fail from lateral loading by overturning as a unit and not by internal collapse.
In other cases the value of 2.
If scaffolds are higher they should be specially designed. Adjustable forkheads or extending legs may be used.
Components should not be thrown on the ground; they should be lowered hand to hand in an orderly fashion or brought down by crane, gin wheel or other suitable means. The capacity of the castors to take the extra load should be checked.
The assembly should be placed inside the bore of the reveal tube and the nut adjusted until the reveal tube is expanded into the opening, gripping it with considerable force. Section 6 provides some technical data and guidance on calculations.
The truss-out should than be designed to match the bay dimensions. The recommended safety factor for guy ropes is 3: They are improved in performance by the use of a sway transom as shown in detail iv of Figure 4 a. Where the design depends on special materials, the designer should ensure that this information is adequately conveyed to stockholders and to the erectors, e.
The scheme, known as the Construction Industry Scaffolders Record Scheme, is organized by the CITB, who run training courses in basic and advanced scaffolding and issue and control individual training record cards.
Table 2 — Widths of access scaffold platforms Purpose Minimum widths Minimum number of mm nominal width boards mm For access, inspection, gangways and runs Working platforms for men without materials or only for the passage of materials For men and materials provided there is mm left clear for the passage of men or mm if barrows are used For carrying trestles or 1 other similar higher platforms For use in dressing or 1 roughly shaping stonea For use to support a higher 1 platform where the supporting scaffold is also used for dressing and roughly shaping stonea a 2 boards 3 boards 4 boards 5 boards 6 boards 7 boards These scaffolds should be specially designed.
HSM – BS to be officially withdrawn in
But in the event of bbs to the scaffold below, some vertical or lateral strength will prove advantageous. Where access to the hoist tower is required, gates should be provide and fitted. They should be stacked flat and raised from the ground by cross battens.
Figure 13 shows details of this construction. The requirements for tube specified in BS Scaffolding Code of Pr Various components are then used to attach the scaffold.
Timber fenders should be scafrolding at the edge and down the middle of the decking, as necessary, to restrain the traffic to fixed lanes so that the location of the applied loads is known. Notices scsffolding maximum permitted vehicle weights and the number of vehicles allowed at any one time should be fixed at each end 59973 elevated roadways and vehicle ramps. If a hook type gin wheel is used it should not be hooked through a coupler but, it should be lashed to the supporting tube and the hook moused see Figure 12 b unless it is provided with a safety catch.
Bolts should preferably be grade 4. See clauses 30 and For these, it is frequently necessary to place a packing between the end of the reveal tube and the surface so scaffoldung damage does not occur. Under wind forces, the anchor points both above and below the fan frequently carry loads up to 2 t for every 3 m of length of fan supported and suitable means of attachment to suitable portions of the building or structure should be made.
BS5973 to be officially withdrawn in 2010
Figure 26 is a typical example of such a tower. Where it is necessary to remove a tie, however temporarily, the scaffold will be less secure, and accordingly a higher provision of ties will be appropriate.
Their accuracy will be better and construction less difficult for all straightforward applications. The inner row is set as close to the building as is practicable. This document Newer versions.
BS 5973:1993
Plan bracing should be fixed if required. In the case where a pavement is not to be obstructed and scaffolding materials have to be stored on the lowest lift awaiting collection, this lift should be stiffened and fully braced or propped by rakers, using materials recovered from the upper lifts. Guardrails should also be provided.
Corroded tube should be wire brushed and the extent of the corrosion assessed by an expert examiner. The scaffoldign end of the putlog tube or putlog adaptor is normally placed horizontally on the brickwork being built.
In all cases, the bracing tubes should be connected either: The effect of the horizontal forces on the walls of the building should be considered.
Nets may be attached with cord. A variety of scaffold fittings and half fittings may be adapted, by securely welding on bolts or drilling bolt holes, to become satisfactory tie fittings. Special consideration is required if heavy objects with a long free fall are to be catered 5793.
The spacing of transoms should conform to the recommendations of clause 14 and joints should comply with the same recommendations for the joints in ledgers given in These include tower mounted scaffolds, and hydraulic platforms. Structural calculations for scaffolds 39 Technical data and notes on calculation 75 The user should inspect them weekly to see that they remain in compliance with the statutory regulations and should sign the Reports of Weekly Inspections5 to record his findings.
Movement of the lower end should be prevented by a foot tie to the main scaffold or other suitable means. Only castors with the appropriate safe working load should be used. New tubes should comply with BS 59733 One of each pair of suspension wires should be fixed near the surface of the building to the inside node and the other from the same suspension point on the building at an angle to the outside node.
A list of the other British Standards which give details of materials and components which will satisfy the recommendations of this code are given in appendix A. In this case they should be adequately attached to resist the loading.