Architectural structures - Trusses
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Transcript of Architectural structures - Trusses
ARCH262 - STRUCTURES FOR ARCHITECTS II Lecture 6: The Truss and the Space Frame
Prince Sultan University College of Engineering
Department of Interior Design and Architecture
2nd Semester 2015-2016
Dr. Julianna Lipták-Váradi
This lecture is connected to the book Sandaker et al: The Structural Basis of Architecture Chapter 8: The Truss and the Space Frame
Case Studies
Luigi Nervi concrete hangar Orvieto, USA (source: structurae.net) Wachsmann US Air Force research project
Structures for Architects II- Trusses and Space Frames
BMW Welt, Munich, Germany, cross-section (source:bmw-welt.com)
Case Studies
Structures for Architects II- Trusses and Space Frames
History
Structures for Architects II- Trusses and Space Frames
Crystal Palace, London, 1851. (source: britannica.com)
Triangulation and Internal Stability
Trusses: series of stable triangles
Triangles are locked into one shape the moment all three sides are linked together (contrary to the case of quadrilateral – rectangle, parallelograms)
Ideal truss:
• Pin connections (idealization)
• No bending moments (idealization)
Calculation methods:
See ARCH216 Structures for Architects I
Vulture`s bone (beta-sheet.org)
Leonhardt House, Long Island, USA (metropolismag.com)
Roof systems
St. Domenico Church, Siena, Italy, roof structure (viaesiena.it)
Structures for Architects II- Trusses and Space Frames
Traditional Chinese house cross-section (jsah.ucpress.ed)
Different approach between Eastern and Western roof systems
Truss Forms
Hopkins House, Hampstead, UK (architecture.com)
Structures for Architects II- Trusses and Space Frames
Truss Forms
Xstrata Treetop Walkway, Kew Gardens, London, UK, 2008 (kew.org)
Structures for Architects II- Trusses and Space Frames
Xstrata Treetop Walkway (dezeen.com)
Joints
Classwork:
Find different types of joints connected to trusses. Each group should introduce two types of joints with photos, sketches and detailed description.
References to use:
• Book: Sandaker et al: The Structural Basis of Architecture
• University library
• Online resources
Thank you for your attention!