Logbook wk06

Page 1

Week 06 Summary Top surface sloped towards drainage

Collect rain water

Sheltering

Concrete slab

Rafters

Roof system

Flat trusses Waterproof membrane

Trusses

Decking

Pitched and sloping roof

Flat roofs

Joists

Beams

Hip roof 3D plate type Gable roof Timber

Space frame

Light frame roof Frame

Steel

Trussed roof

Flat

Primary and secondary roof beam Flat

Structural steel framed roof

Roof beams and purlins and lighter sheet metal roofing

Sloping

Beams and columns connected by rigid joint

Portal frame

Gable Cheap Steel

Iron

Alloys

Wrought iron

Ferrous

Expensive

Cast iron

Steel

Metals Non-Ferrous Metal Steel sheeting

Tin, Lead, Zinc, Copper, Bronze, Aluminum

Structural steel

Hot rolled Cold formed

Framing

Stainless steel When load is applied on a triangular frame, take off one side to determine whether it’s compression/tension

Roofing

Critical vertical load

Cladding

Gutter Tiled Roof A certain pitch allows water to flow. Should be constructed at pitches greater than 15.

Flashing Zincalum = zinc + aluminum

E = modulus of elasticity I = area moment of inertia L = unsupported length of column K = column effective length factor KL is the effective length of the


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