PS2b

Bed Operative Procedures

 

This unit formS the core of the training and is suitable for Casting, Specials and Unit Handling

 

The risks and hazards associated with the operations

  • Housekeeping

  • The machinery used during the manufacturing process

  • Other non-machinery hazards

  • Working on or around tendons with live loads i.e. tying rebar
     

The importance of cleaning the work area

  • Operatives will understand the importance of cleaning the casting area in preparation for the process

  • The use of work area cleaning tools e.g. squeegee mops

  • The use of releasing agents and the issues relating to COSHH and PPE
     

Tendon patterns

  • The different types of tendon patterns

  • Tendon drawings showing tendon positions and how to apply them
     

Tendon Displacement, Bed Wiring and Pullers

  • The tendon guides are explained in depth, covering the various patterns used for different product designs

  • The positioning of tendons along the casting area and preparation for the stressing operation to take place

  • The correct systems for coupling the tendons to the ‘dead-end’ and the ‘live-end’ of the casting area

  • The correct method for pulling the tendon from the coil and the directional issues

  • The importance of continual visual checks on the tendon coils

  • The points and dangers to be aware of when pulling tendons

  • The positioning of tendon safety restraint systems and reasons for their use

  • The importance of inspecting the tendons and the potential problems
     

Correct method for fitting Barrels and Wedges

  • We explain the common issues related to barrels and wedges, including typical faults and related hazards

  • Correct storage methods for barrels and wedges

  • The correct use of barrels and wedges and the different types of tendon connectors

  • The importance of inspection for each component and awareness of the relevant problems (practical examples of both acceptable and unacceptable quality are used)

  • The methods used for the separation of unacceptable components

  • The use of grip release spray and the reasons for using it

  • The use of double-ended couplers
     

Fitting the Button Ends

  • We explain the relevant faults and issues regarding button-ends

  • The storage methods for ferrules and their use

  • The inspection of button-ending equipment and test requirements

  • Know how to inspect the button-end and the qualities required showing examples of acceptable and unacceptable quality

  • The correct methods of cropping tendons before proceeding with the manufacture of the button end
     

Tendon Jointing

  • Where joints in the tendons are made, the following is explained:

  • The correct operation of the tendon jointer (practical demonstration is given) including essential safety requirements

  • Points to be aware of during the jointing procedure
     

Guards and Warnings

  • Relevant and adequate guards

  • Position and type of notices

  • Use of relevant audible warnings during Pre-stressing operations
     

Safe Systems of Work

  • The course makes specific reference at all times to the procedures set out in the relevant Safe System of Work as authorised by the Factory Manager

  • The above elements of the course are subject to discussion and change. The course will be tailored to your site-specific procedures as these may differ by location and company

 

This module is assessed through a multiple-choice questionnaire