Kim collins integral engineering design clt and innovation in construction low carbon business breakfast tuesday 19th september 2017

Cross Laminated Timber Kim Collins

Cross Laminated Timber CLT

Hayesfield Girls’ School White Design

Embodied Carbon Hayesfield Girls’ School

-126

159

206 217

-150

-100

-50

0

50

100

150

200

250

Nucleus(with

sequestration)

Nucleus(without

sequestration)

Concrete Scheme Steel scheme

Embo

died

Car

bon,

kgC

O2e

/ m

2

Embodied carbon of structural components, compared to equivalent steel and concrete schemes

Holme Lacy Workshops Hewitt Studios

Kingswood LocalityHub Alec French Architects

Arts Space, Hereford College of Art Hewitt Studios

Christies Care Nicholas Hare Architects

Christies Care Nicholas Hare Architects

Procurement

Hayesfield Girls’ School White Design

ROH Costume Centre Nicholas Hare Architects

ROH Costume Centre Nicholas Hare Architects

Steiner Academy, Frome FCBS

Bearing details

Avoids internal bracket but more machining of CLT required

Simple connection but requires wide support

Plated connection can be used if hidden by finishes

CONSIDER CONSTRUCTION TOLERANCES

Standard details

Bearing connection Shear connection

Disproportionate collapse

Ideal for acoustics Ideal for robustness

Raymond Fenton Community Centre, South Cerney White Design

Raymond Fenton Community Centre, South Cerney White Design

Conclusions

• Flexible, sustainable engineered material

• Needs to be embraced from the outset with a coordinated team approach

• Reduced time on site

• Detailing is very important- driven by connections and interfaces

• Programme must consider procurement