Stadthaus, murray grove case study presentation
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Craig Liddell presents a case study on the construction of Stadhaus, Murray Grove, the world's tallest wood framed residential high-rise at GBF2010
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Stadthaus, murray grove case study presentation
- 1. KLH UK Ltd is part of KLH Massivholz GmbH, Austria PASSIONATE ABOUT SUSTAINABLE CONSTRUCTION SPECIALIST DESIGN, MANUFACTURE, SUPPLY & ERECTION OF CROSS LAMINATED STRUCTURAL TIMBER PANELS STADTHAUS, MURRAY GROVE: 9 STOREY TIMBER HIGH RISE BY CRAIG LIDDELL, COMMERCIAL DIRECTOR, KLH UK
- 4. Â
- 5. KLH = K reuz L agen H olz Engl. = Cross Laminated Solid Timber Panels
- 6. KLH = K reuz L agen H olz Engl. = Cross Laminated Solid Timber Panels 90 degrees
- 7. PRODUCTION METHOD Pressure 5 to 7 kg/cm2 - equivalent 500 kN/m2 Maximum size after cutting = 2.95m (2.98) x 16.5m 500mm 3.0m 16.55mm Maximum width/height Maximum length
- 8. PRODUCTION METHOD Pressure 5 to 7 kg/cm2 - equivalent 500 kN/m2 500mm 3.0m 16.55mm Maximum width/height Maximum length Maximum size after cutting = 2.95m (2.98) x 16.5m
- 9. PRODUCTION METHOD Pressure 5 to 7 kg/cm2 - equivalent 500 kN/m2 500mm 3.0m 16.55mm Maximum width/height Maximum length Maximum size after cutting = 2.95m (2.98) x 16.5m
- 10. PRODUCTION METHOD Pressure 5 to 7 kg/cm2 - equivalent 500 kN/m2 500mm 3.0m 16.55mm Maximum width/height Maximum length Maximum size after cutting = 2.95m (2.98) x 16.5m
- 11. PRODUCTION METHOD Pressure 5 to 7 kg/cm2 - equivalent 500 kN/m2 500mm 3.0m 16.55mm Maximum width/height Maximum length Maximum size after cutting = 2.95m (2.98) x 16.5m
- 12. PRODUCTION METHOD Pressure 5 to 7 kg/cm2 - equivalent 500 kN/m2 500mm 3.0m 16.55mm Maximum width/height Maximum length Maximum size after cutting = 2.95m (2.98) x 16.5m
- 13. PRODUCTION METHOD Boards for floors ceilings etc.: DL (top layer longitudinal) Boards for walls: DQ (Top layer vertical)
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- 27. EXISTING SITE
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- 37. MOVEMENT - TOTAL CREEP AND SHRINKAGE
- 40. STABILITY/ROBUSTNESS - CONNECTIONS
- 44. ACOUSTICS
- 46. THE BUILD
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- 71. BENEFITS OF CLT CONSTRUCTION FOR STADTHAUS
- 74. FAĂADE PANELS
- 75. FAĂADE PANELS
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- 82. PROFILE & LEGACY
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- 88. FUTURE PROJECTS
- 89. FUTURE PROJECTS
- 90. â A PROCESS REVEALEDâ BOOK
- 91. www.klhuk.com
Editor's Notes
- Kiln dried 12%, +/- 2 finger jointed spruce â individual planks used to create layers
- 2011 ETA due â seismic etc
- Large format sheets or blanks....
- Then CNC processed....
- Final full prefabricated panels â individually identified and sequentially loaded
- GF in concrete 11 one bed, 10 two bed, 5 three bed, 3 four bed. Every flat has a balcony â dual aspect, cross ventilation
- City of London in the background....
- Site â old pub. Vicinity â mainly social housing, relatively run down area to the north of east London. Two prev planning applications had been refused â therefore constraints on what could actually be built / what was acceptable. Developers engaged with local residents from an early stage
- Surrounded by close vicinity shitty housing â 100% social housing in blocks
- GF plan â commercial space ; part handed over to residents committee
- 3 rd floor plan â typical affordable units
- 5 th floor plan â private resi
- floor panels are 146mm and the walls are 128mm throughout (could have been thinner higher up). Cross laminated timber â strength in 2 directions . The wall panel is not merely taking vertical loads straight down but acts as a beam using the secondary laminates and therefore brings the load down across the entire panel... Â Â
- Things to consider....
- 0.2% shrinkage per percentage movement in moisture content.
- Approx 3mm per floor
- Within the UK we have a specific regulations that state how a variety of buildings must be designed in order to resist disproportionate collapse in the event of an accident, such as a gas explosion. This regulation was born from an number of accidents in the UK around the 1960âs where relatively minor failures of a part of the structure led to a disproportionate loss of other parts of the building.
- Wind loads on the facades are transferred firstly into the external wall panels, and then into the floors. The floors then transfer the horizontal loads into the perpendicular internal and external load bearing walls by diaphragm action and finally into the reinforced concrete foundations. Externals walls had sufficient capacity to allow the architects to adjust fenestration to avoid repetitive elevations
- Typical cross laminated construction is for wall panels to bear onto floor panels and then onto wall panels below. At Murray Gove flat layouts were generally configured to avoid large load transfers. Simple cellular construction with spans in the region of 3-4m results in generally low stresses. Wall panels, where the outermost timber is parallel to the load direction are approximately 10 times stronger than the floor panels where the load is perpendicular to the grain direction. This wall/floor/wall construction inevitably results in a âweak linkâ which can be overcome by strengthening at points of high load.
- Other points to consider with cross lam construction â not specific for tall buildings â acoustics and thermal performance. We tested the proposed build-ups in the factory prior to final design. Box in box solution â anecdotal marco the austrian!
- Day one â first 3 floors of liftshaft being installed. Surface spread.....
- 2 men in ties â not our guys....
- Stairs in steelwork â lifted in by our crane. Steelwork fabricators struggled to keep up.....
- All built up to this level with a standard mobile crane
- Switched to self-erector....
- To give you an idea of the process without scaffolding....hereâs one we built earlier...a job in Austria; ARCHITECTURAL BALSA MODEL....
- 49 weeks versus 70 weeks concrete frame metsec infill . 3 / 4 day weeks fro KLH. Surveyed â 5mm out of plumb. Following trades using battery drills....
- Door linings , M&E
- Ultimately overclad throughout....developers portfolio
- Note use of torch-on....
- Insert gag
- Refer to exchange rate at 2008
- ....architects analysed the movement of shading during the day & designed the eternit cladding to reflect this. Inspired by the artwork of gerhard richter
- The big reveal â prior to this it was like a Cristo artwork...
- Australia â tested with aussie timber â very fast growing â very good results. Watch this space...
- On 5 th May KHW and AW met with an Austrian delegation of politicians, planning officers and timber industry professionals, to discuss the use / lobby government of CLT in high rise buildings/give tour of Stadthaus. Austria- planning restrictions in place that prevent architects designing buildings over 4 storeys, and core must be built in concrete.
- Cost exercise showed that it could be built even more economically than MG / stad.....
- May be some available to purchase in the bookstore â cash only to me! Or a few labatts.....