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Glulam / Hybrid Structures
Overview
Framing Options – Glulam, Steel, Concrete
simon.smith@smithandwallwork.com
Content
• Introduction
• Example Timber Hybrid Structures • Bridges
• Roofs
• Frames
• Timber Hybrid Products
• Material Properties Study
• Glulam & Hybrid Futures
Steel and Concrete
Content
• Introduction
• Example Timber Hybrid Structures • Bridges
• Roofs
• Frames
• Timber Hybrid Products
• Material Properties Study
• Glulam Hybrid Futures
Timber Propped Concrete
www.cbg-ing.ch
Timber & Steel Pylon
www.ib-miebach.de
Timber & Steel Pylon
www.ib-miebach.de
Timber & Steel Truss
Timber & Steel Composite
www.ib-miebach.de
Timber & Steel Truss
www.cbg-ing.ch
Timber & Concrete Composite
www.ib-miebach.de
Content
• Introduction
• Example Timber Hybrid Structures • Bridges
• Roofs
• Frames
• Timber Hybrid Products
• Material Properties Study
• Glulam Hybrid Futures
www.fastepp.com
Content
• Introduction
• Example Timber Hybrid Structures • Bridges
• Roofs
• Frames
• Timber Hybrid Products
• Material Properties Study
• Glulam Hybrid Futures
www.rsh-p.com
www.ramboll.com
www.sheppardrobson.com
www.ramboll.com
Content
• Introduction
• Example Timber Hybrid Structures • Bridges
• Roofs
• Frames
• Timber Hybrid Products
• Material Properties Study
• Glulam Hybrid Futures
www.ticomtec.de
www.sfsintec.biz/internet/sfsintde.nsf/PageID/System_VB
DIY
www-edc.eng.cam.ac.uk/~dds11/Persaud-Symons-2006.pdf
Life Cycle Tower
www.creebyrhomberg.com
Content
• Introduction
• Example Timber Hybrid Structures • Bridges
• Roofs
• Frames
• Timber Hybrid Products
• Material Properties Study
• Glulam Hybrid Futures
Material Properties
Material Properties Compared
Strength to weight values
0
5
10
15
20
25
30
density coeffecient of thermalexpansion
modulus of elasticity tensile strength compressive strength
timber
concrete
steel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
specific modulus ofelasticity
specific tensile strength specific compressivestrength
timber
concrete
steel
Equivalent Structural Properties
50kg 300kg 50kg
75kgECO2 65kgECO2 20kgECO2
£65 £65 £85
(80kgSCO2)
Timber Strengths
0
5
10
15
20
25
30
35
40
45
50
Softwood C24 LVL Glulam GL24h
bending strength
tensile strength
compressive strength
30%
Content
• Introduction
• Example Timber Hybrid Structures • Bridges
• Roofs
• Frames
• Timber Hybrid Products
• Material Properties Study
• Glulam Hybrid Futures
Glulam Futures
• What would a glulam solution look like?
November 2012 – Google give $3m funding to USGBC to research healthy buildings and how building materials affect human health…
Competition
Glulam Hybrid Long Span Floors • 15m clear span
800-1000mm Glulam beams
650-750mm Glulam & concrete composite
650-750mm Glulam & timber composite
Glulam and LVL Hybrid
• 15m clear span
• 240mm deep glulam beams
• 60x600mm LVL ribs
• 90min fire resistance
• 130kg/m2
….but can it cost £250/m2?
www.shigerubanarchitects.com
September 2012
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