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Detailed Description
Comprehensive step-by-step solution for designing a timber joist in structural engineering. This problem involves selecting an appropriate timber section (50mm × 275mm) from SC14 strength class to support a uniformly distributed load of 1.5 kN/m over a 3.6m effective span.
The solution covers all essential design checks required by timber design codes: bending stress verification, shear stress analysis, bearing stress at supports, and deflection limits. All modification factors are taken as 1.0 for simplified analysis.
Key learning outcomes include understanding of section modulus calculations, stress analysis in timber members, and compliance with permissible stress design methodology.
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Academic/Tutorial Description
Tutorial: Timber Joist Design Using Permissible Stress Method
Learn how to design timber structural elements through this detailed worked example. Starting from basic loading conditions and spanning requirements, this tutorial demonstrates the complete design process for selecting and verifying timber joist sections.
Topics Covered:
✓ Effective span calculation
✓ Bending moment and shear force determination
✓ Section modulus requirements
✓ Trial section selection methodology
✓ Bending stress verification
✓ Shear stress analysis
✓ Bearing stress at supports
✓ Deflection control and serviceability
Perfect for civil engineering students studying structures, timber design courses, or construction technology programs.
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