Wk8

Learning summary Moment of inertia: Measure of efficiency of a material based on cross sectional shape.

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Doesn’t have anything to do with material (one material stronger than the other), only the cross sectional shape.

For example: If there were the following cross sections

And wanted to find which one was stronger, you could do the following calculations.

Week 8 Openings: allow light, ventilation and access into buildings

Doors (Ching, 2008)

Windows (Ching, 2008)

Week 8 studio Task: Blow up a 1:5 detailed section and draw it at a 1:1 scale on A1 sheet of paper. Add an additional layer of tracing paper for annotations.

My section was the ‘Function Room South (Door threshold)’ found on the drawing A60-03 Building details-function room.

Motor operator- controls the door (opening and closing –prevents door from banging shut which could cause damage and disruption

There is a break through the section of the door to cut out unnecessary information which allows the detailed section to be reduced in size and only show what is important.

The section is cut through the door

Structural silicone weatherseal-fills in opening and prevents moisture from getting in

Welded/fixed joint

Steel angle joint fixed to header beam Double glazed glass- good for sound reduction and insulation

Steel RHS (rectangular hollow section) – the material (steel) is represented through double horizontal line hatching

Week 8 studio

Door bottom seal alleviates air leakage and prevents moisture and water getting through. Material is flexible so it can be moved across the ground.

Threshold plate: the metal piece fitted to the sill of the door – acting as a weather barrier and clear distinction between interior and exterior.

Timber Door frame represented by this hatching

Exterior cement floor falls away from building to drain water away from the opening

References Ching, F. D.K. (2008). Building Construction illustrated.

Hoboken, NJ: John Wiley & Sons, Inc.