The Benefits of Mid-Rise Construction In Timber For The Construction - - PowerPoint PPT Presentation

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The Benefits of Mid-Rise Construction In Timber For The Construction - - PowerPoint PPT Presentation

The Benefits of Mid-Rise Construction In Timber For The Construction Clients Group PRESENTED BY SEAN GARDINER Photo by D-Max Photography Photo by D-Max Photography Contents 1. What Is Possible 2. Benefits of Timber Construction 3.


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PRESENTED BY SEAN GARDINER

The Benefits of Mid-Rise Construction In Timber

For The Construction Clients’ Group

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Photo by D-Max Photography SLIDE 2 Photo by D-Max Photography SLIDE 2

  • 1.

What Is Possible 2. Benefits of Timber Construction 3. Timber vs Steel braced frame 4. Challenges 5. How 6. Code Compliance 7. What’s next 8. Conclusion/Questions?

Contents

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  • Benefits of timber construction
  • Cost

t savings ngs (e.g. . light t timber er-framed amed const structi tion) n)

  • Reduc

duced ed buildi ding ng weight ht

  • Reduced foundations (particularly for poor geotech)
  • Reduced lateral structure (light and flexible)
  • Opportunities for extension of building height
  • Sustai

tainabl nable, , low-car carbo bon

  • Broade

ader pool of builde ders s & E Easi sily y modifi fied ed on site

  • Potent

ntia ial programme amme savings gs

  • Aestheti

thetic- natural attraction of timber, “improved health and wellbeing”

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  • Lendlease, Australia
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  • Timber compared to Steel Braced

Atlas as Quarte ter

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  • Timber compared to Steel Braced
  • NZ Timbe

ber r Concept vs Steel Braced Frame

  • Chri

rist stchurch

  • 10% saving

g on super-stru ructure

  • 30% ($300k)

) saving g in in piles s

Atlas as Quarte ter

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  • Challenges
  • Timber

r Shri rinkage ge and differential movement

  • Noise

se Contr trol

  • l
  • Floor
  • r Vibration
  • n
  • Fire Safety
  • Claddi

dding g and Facades

  • Market percept

ption

  • n?

New Zealan land Market

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  • What Challenges

.

UK and North America a for decades NZ Wood d Design gn Guide des Mid-ri rise se const stru ructi tion

  • n

handbo dbook

  • k
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  • How? Light timber framing or CLT
  • Concr

cret ete e Podium um

  • Lightw

htweight ght Timbe ber Tower er over

  • Conti

tinu nuous us Plywood d Shear arwal alls

  • Simplified

fied Struct ctural ural Desi sign gn

  • Wall Cons

nstr truct uction

  • Double Stud Party walls
  • Staggered Stud Corridor walls
  • Single Stud Internal and External LB walls
  • LVL

Mid-rise se (4-6 6 storey ey) ) apartm tments ents

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  • How?

.

Typical al Floor Construc struction

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  • How?

Shear ar Wall l Construc struction

  • Seismi

smic Perform

  • rmance (nail

slip) p)

  • T

ake-Up Up Devices

  • Flexi

xibl ble and Ductile (reduced d seism smic loads) s)

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  • How?
  • Services

s Integra gration

  • n
  • Corri

rido dors

  • Balcon
  • nies
  • Lift Shafts
  • Time Efficiencies
  • Pre-fabri

brication

  • n
  • Modulari

risati sation

  • n
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  • Code Compliance?
  • B1/VM1

M1

  • NZS1170

70.5 (Loadi dings) gs)

  • NZS3603 (Timbe

ber r structures s standa dard) d)

  • Covered

d under r current verification

  • n method
  • d
  • Altern

rnati tive soluti tion

  • n and peer review

w may be required for low- damage systems, ms, such as rocking g shear walls s

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  • What Is Next?

.

  • Cross

ss-Laminate nated Timber r (CLT)

  • Portal Frames
  • Glulam
  • Laminated Veneer Lumber

(LVL)

  • PRESS

SSS-LAM

  • Rocki

king ng Struct ructures

  • RSFJ-T

ect cton

  • nus

us

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  • Cross- Laminated Timber (CLT)

Availabl ble from

  • m:

Xlam- Nelson,

  • n, New Zealand

d (also so availabl ble in Australi tralia) https ps:// ://www.x .xlam.c .co.nz

  • .nz/

Streamli mlined Buildi ding g Solution

  • ns

s (ex Austra ralia, imported d from m Europe pe) http:// p://ww www.str .streamlinedbui dbuildi ding. g.com

  • m/
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  • CLT- Mahitahi example
  • Approx.
  • x. $11M

M reside dential developme pment

  • Used “3-layers” CLT (5 layers expensive

due to glue)

  • CLT3/

T3/115 walls

  • CLT3

T3/135 floo

  • ors
  • Ductility μ =1.25-2.0

.0

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Photo by D-Max Photography

CONT NTACT US

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  • Conclusion/Questions?

Sean Gardiner r Sector Leader – Structures Calibre 03 371 0558 | 021 243 2553 Sean.Gardiner@calibregroup.com