Oxford Method Research Programme

General Construction Guide

 

To give clear stages in the development of 6M the Main Elements section has taken the three definite changes.

1. Plannja cladding
2. Brick cladding
3. The introduction of pitched roof.

Details of each development have been kept as a separate group and each related element tells its own story.

The building outline is planned on a 600 x 600 grid. Structural frame and internal sub-division are planned on a superimposed 300 x 300 grid.

A high standard of accuracy in setting out was essential at all stages. Further emphasis is given to setting out accuracy in the sections dealing with steel frame, drainage, and mechanical and electrical services. In-situ ground and upper floor slabs were to be suitable finished to receive floor finishes without the use of screeds or levelling compounds as already noted.

SUB STRUCTURE 

Depending on ground conditions, external walls and columns were supported on continuous trench fill footings 600 mm minimum width and internal columns are supported on pads.

Ground Floor
The ground floor slab was 150mm power floated concrete on 150 mm weak mix supporting the d.p.m.

SUPERSTRUCTURE 

Frame 
The steel frame consists of 150 x 150 RHS columns with tied portal frames supporting the roof and double universal beams supporting upper floors. Internal vertical cross-bracing may be required.

Upper floors (ie Plantroom floors) 
Upper floor slabs are powerfloated concrete on profile metal deck permanent formwork. This acts compositely with the double floor beams.

External walls 
Plannja was the first material used to replace the industrialised panel system.

The details of main elements show how they compare to the 2 & 3M system.