Arc341 building 3 spring 2019 lecture 1 - introduction to structures
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introduction to structures
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Arc341 building 3 spring 2019 lecture 1 - introduction to structures
- 1. FUE - Future University in Egypt Faculty of Engineering and Technology Department of Architectural Engineering ARC 341: Building Construction and Materials (3) Spring 2019 Instructor: Dr. Yasser Mahgoub Introduction
- 2. Structural form Structures take one of four basic forms which may exist singly or in combination. • Solid An homogeneous mass structure where the external surface is independent of the internal form - a three-dimensional solid body • Surface An homogeneous surface where the external and internal forms are similar - a two-dimensional panel • Skeletal A framework where the assembly of members gives a clear indication of the form usually using one-dimensional elements • Membrane A flexible sheet material sometimes reinforced with linear tension elements used either as single cables or as a cable net. A variation is the pneumatic where air under pressure is contained by a tension membrane skin • Hybrid A combination of two of the above forms of near equal dominance
- 4. Structural form in nature • Human and animal skeletons • Birds' wings • fish • flowers • Honeycombs • Leaves • Plants • Rock caves • Shellfish • Snails • Snowflakes • Spiders' webs • Trees
- 5. Structural form - man-made • Aeroplanes • Bicycles • Bridges • Buildings • Cars • Clothes • Cranes • Dams • Engines • Fabrics • Fastenings • Furniture • Musical instruments • Packaging • Pottery • Roads • Sculpture (3-D art) • Ships and ~achts • Sports gear • Technical instruments • Tents • Tools • Toys • Tunnels • Wheels
- 6. Structural form - man-made • Aeroplanes • Bicycles • Bridges • Buildings • Cars • Clothes • Cranes • Dams • Engines • Fabrics • Fastenings • Furniture • Musical instruments • Packaging • Pottery • Roads • Sculpture (3-D art) • Ships and ~achts • Sports gear • Technical instruments • Tents • Tools • Toys • Tunnels • Wheels
- 7. Structural form - man-made • Aeroplanes • Bicycles • Bridges • Buildings • Cars • Clothes • Cranes • Dams • Engines • Fabrics • Fastenings • Furniture • Musical instruments • Packaging • Pottery • Roads • Sculpture (3-D art) • Ships and ~achts • Sports gear • Technical instruments • Tents • Tools • Toys • Tunnels • Wheels
- 8. Structural materials • Isotropic • Providing equal performance in all directions in both tension and compression • Metals • Including steel, aluminum, bronze, titanium etc.
- 9. Structural materials • Anisotropic • Providing differing performances in different directions and i n compression and tension • Timber • Different values for compression and tension. Different values for load parallel and perpendicular to the grain.
- 10. Structural materials • Anisotropic • Providing differing performances in different directions and i n compression and tension • Concrete and masonry • Good in compression, poor in tension. Steel reinforcement provides the tension element in reinforced concrete.
- 11. Structural materials • Anisotropic • Providing differing performances in different directions and i n compression and tension • Plastics and reinforced plastics • Usually stronger in tension than compression. A very wide range of performance according to type of plastic and reinforcement.
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- 22. Revision Basic Structural Elements • The basic structural elements can be reduced to those which are: • Linear – Columns – Beams
- 23. Revision Basic Structural Elements • The basic structural elements can be reduced to those which are: • Surface – Walls – Slabs
- 24. Revision Basic Structural Elements • The basic structural elements can be reduced to those which are: • Spatial – Facade Envelope – Core – Building as System
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- 58. Thank You.