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Frames 1
Cellular construction: Load-bearing walls divide a building into cells
Lateral stability: Buildings must resist sideways action as well as weight
Modular construction: Factory-made units still need designed connections
Rectangular frames: Beams and columns carry the principal loads
Frames 2
Timber and steel frames: Choose members and details for the building
In-situ and precast concrete: Place of manufacture changes logistics
Comparing systems: Use layout and construction constraints
Portals 1
Portal action: Rigid joints support clear internal spans
Columns and foundations: Connections transfer forces into the ground
Rafters, apex and knees: Name parts by their position and function
Purlins, rails and bracing: Secondary members and stability members do different jobs
Connections
Frames 1 → Frames 2: Support and stability must work together
