Last years first years are here and their first unit is Framed Ceilings (Rondo Ceilings)
The class has overall been exposed to this type of ceilings in their workplaces and constructed bulkheads using steel components. That is a good starting point and the beginning of formative assessment, to judge where they are in terms of Guild or Trade Knowledge.
Basic component knowledge as usual is reasonable using trade terms for the parts but not the actual part numbers and names.
Introduction to part names and numbers .
- Purlin drawn on the whiteboard
- Asked question “What is next?”
- Feedback for each component, it’s purpose, placement and specifications
- Draw each part as information comes from the students, explain any missing information, technical and workplace situation related experience and “Discussion”
- Review Hanger, the components and weight ratings.
- Discussion of situations that arise on the site
- Wider purlins, large ducting, light fittings and setting out to avoid conflict with Framed ceiling steels work.
- Setting out Supported and unsupported centres for (127)TCR and (129)Furring Channel (70mm max centres for Furring unsupported) (200mm TCR)
- Quoting for suspended Framed Ceiling
- Discussion re: setting out and spacing hangers and introduced idea that they need to just work out the hangers and components for one run of TCR and then multiply that by the number of runs across the ceiling.
- Noticed that the main gap in knowledge is in the area of unsupported TCR and Furring Channel distances.
- Uncertainty regarding set out of furring channel in Direct fix Rondo Ceilings. NOTE* They knew the 600mm centre but has difficulty in setting out a 1500mm wide space with a 70mm centre each side. Mose wanted to include a fifth Furring Channel (should divide the remaining span by 2 and place furring channel 300mm each side of centre).
- Discussion regarding plans and interpret information…
- Mistakes: Setting out bulkhead at rear of bays (Plans show at rear of Bay)
- Furring Channel set out with 5 instead of 4
- Unsure of wall angle and construction for Bulkhead
Extra time needed to draw out the correct information and add more setting out examples and situations.
In the work bays, plans laid out on the bench and general discussions, regarding construction. students seemed clear and began working.
“Soon became obvious that they were not clear and that the did not read the plans correctly, prior to starting.”
- Several student set out the bulkheads at 400mm finished
- Many built a complete frame for the bulkhead
- Most were unsure at how to space the TCR and Furring Channels
- Overall they could not substitute components to build the bulkhead
- Difficulties with centering access panels etc.