1 NOVEL APPROACHES IN STRUCTURAL AND THERMAL ANALYSIS OF BUILDINGS Dariusz ALTERMAN The University of Newcastle Australia www.newcastle.edu.au 2 Artificial Intelligence methods Uniaxial tensile tests Image Analyse techniques Energy efficiency of buildings OVERVIEW
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NOVEL APPROACHES IN STRUCTURAL AND THERMAL ANALYSIS OF
BUILDINGS
Dariusz ALTERMANThe University of Newcastle
Australia
www.newcastle.edu.au
2
Artificial Intelligence methods
Uniaxial tensile tests
Image Analyse techniques
Energy efficiency of buildings
OVERVIEW
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www.newcastle.edu.au
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- air content (A)- micropores content(A300)- specific surface (alfa)- spacing factor (L)- cracks
Image Analysis
- modulusof elasticity
Mechanical tests
- Vickerstest- CoV of diagonals
Information from the object
AE
- AE signal
DATABASE
www.newcastle.edu.au
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Artificial Intelligence procedures can revealunknown features of reality to an Engineer
Numerous multiNumerous multi--dimensional data comes from dimensional data comes from the real world and the real world and areare often not exactly often not exactly accurate, complete but fuzzy or scatteredaccurate, complete but fuzzy or scattered
ARTIFICIAL INTELLIGENCE TOOLS
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www.newcastle.edu.au
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AIEVALUATEDPROPERTIESOF CONCRETE
(frost resistance,compressive and tensilestrength, ...)
OBSERVEDFEATURES
www.newcastle.edu.au
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approximation classification ???
TYPE OF ANALYSIS
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www.newcastle.edu.au
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hiddenneuronetc.
hiddenneuron
BACKPROPAGATION NETWORK
www.newcastle.edu.au
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0 0 .5 1 1 .5 2 2 .50
20
40
60
80
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F unc t ion A pp rox im a t ion
Inpu t
Output: -, Target: +
fc
w/c
PREDICTION
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www.newcastle.edu.au
9HIGH PERFORMANCE CONCRETE
www.newcastle.edu.au
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UNIAXIAL TENSILE TESTS
EFFECTS OF SECONDARY FLEXURE
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www.newcastle.edu.au
11LOADING
www.newcastle.edu.au
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With eliminationWithout elimination
THE EFFECTS OF SECONDARY FLEXURE
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www.newcastle.edu.au
13IMPREGNATION TECHNIQUE
www.newcastle.edu.au
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Typically brick veneer, cavity brick or lightweight construction (some single skin)
Developers in the past have paid little attention to climate design or energy consumption and often poor use of materials
Temperature Heat flux profilesSolar radiationWeather conditionsHeating/cooling energy
INSTRUMENTATION
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www.newcastle.edu.au
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Thermal resistance of each walling system determined from guarded hot box tests
Representative housing test modules for each walling system observed over several years in Newcastle (Interior temperature “free floating” or “controlled” by heating/cooling)
Artificial Intelligence methods can help Artificial Intelligence methods can help you better understand different you better understand different phenomena in your phenomena in your research fieldresearch field