FUTURE IS NOWVALUE ENGINEERING

12th, April

Johannesburg, South Africa

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FINDING THE BEST POSSIBLE

SOLUTION W/O COMPROMISING

ON QUALITY

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REAL EXAMPLES: VALUE ENGINEERING IN FIXATIONS

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VALUE ENGINEERING EXAMPLES – CAST-IN CHANNEL TO ADDRESS VERY LIMITED ACCESS

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• Project description: One Za’abeel

– Location: Dubai, UAE

– Type: mixed use, 2 towers 50+ & 60+ floors

– Consultant: Inhabit

• Project challenges:

– Different panels 3.6m & 4.25m

– Horizontal/ longitude loads up to 10kN

– Very limited access to the location

• Proposed solution & benefits:

– Hilti HAC cast-in channels

– only 2 sizes of cast-in channels to be used =

peace of mind and quick installation; post-

installed anchors won’t answer project needs

VALUE ENGINEERING EXAMPLES – CAST-IN CHANNEL TO SOLVE DIFFERENT PROJECT REQUIREMENTS

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• Project description: Nidapark Küçükyalı

– Location: Istanbul, TUR

– Type: mixed use, 3 towers 30+ & 40+ floors

– Consultant: CWG

• Project challenges:

– High wind load up to 60kN

– Horizontal/ longitude loads

– Slab to curtain wall 30 cm distance, extra momet

loads

– Different floors configuration

• Proposed solution & benefits:

– Hilti HAC cast-in channel

– only 1 size of cast-in channels to be used +

special solutions on the corners

VALUE ENGINEERING EXAMPLES – QUICK AND RELIABLE SOLUTION FOR LIMITED FIXATIONS

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• Project description: Boulevard Crescent

– Location: Dubai, UAE

– Type: residence, 2 towers 47+ & 25+ floors

– Consultant: Inhabit

• Project challenges:

– Fast track project

– Missing anchor channels

– Horizontal/ longitude loads up to 3kN

• Proposed solution & benefits:

– Hilti HST3 expansion anchor

– Best solution for cracked concrete & limited

number of fixations

VALUE ENGINEERING EXAMPLES – SIGNIFICANT COST REDUCTION DUE TO DESIGN OPTIMIZATION

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• Project description: YDA Söğütözü

– Location: Ankara, TUR

– Type: mixed use, 2 towers 20+ & 40+ floors

– Consultant: AXIS

• Project challenges:

– Seismic calculation needed

– High horizontal/ longitude loads up to 25kN

– HDG or stainless steel material

• Proposed solution & benefits:

– Hilti HST expansion anchors with seismic

approval

– Provided solution with significant cost saving! =

M12 HDG instead of M16 SS

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REAL EXAMPLES: VALUE ENGINEERING IN FIRESTOP

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1st Floor

2nd Floor

3rd Floor

FIRESTOP: OVERDESIGNING

Metal box to carry rockwool

High rockwool density in perimeter joint

110 Kg/m3

64Kg/m3

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… AND USING WRONG SYSTEM

Both ASTM and BS EN test multi story assembly but ASTM clearly defines the movement

requirements, while BS 476 treats curtain wall as any other joint without the movement

Non Tested System Tested system w/o consideration of

Curtain wall movement

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SUMMARY - VALUE ENGINEERING

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2 cast-in sizes for different panel shapes and sizes

Cast-in for high sheer (60kN) + wide gap (300mm)

Mech. or chem. Anchor solution to replace missing Cast-in

Cost reduction: HDG vs SS fixing, M12 vs M16

Cost reduction & movement factor : firestop solution without

any steel plate support

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THANK YOU