Interim Logbook
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Transcript of Interim Logbook
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Constructing Environments ENVS10003
LOGBOOK
BY BOYOUWU683635
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Week 1.1 Knowledge maps of e-learning and readings
Map 1:
Loads:
(Ching 2008: 2.08)
Live loads Dead Loads
Impact Loads
Static Loads Dynamic Loads
Structural System of a building
Settlement Loads
Ground Pressure
Water Pressure
Thermal Stresses
Wind Pressures Flutter Base Shear
Wind Loads Earthquake Loads
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Map 2:
Materials:Strong Eg. SteelWeak Eg. Timber
Stiff Eg. Concrete
Flexible Eg. Rubbers
Stretchy
Floppy
Impact on environments
Efficiency
Price
Availability
Isotropic Anisotropic
LinerPlanerVolumetric Eg. Concrete
Strength
StiffnessSustainability
Economy
Materials
Shape
MaterialBehaviors
Transportation Cost
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Week 1.2 Knowledge Maps of Theatre sessions
Introduction of Constructing Environments:
Experimentation
Observation
Critical Thinking
Equipmentsneeded
Constructing
Environments
Language of construction
Structural Principles
How loads transferredto the ground
Material Chosen
Site Processes
Constructing Drawing
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Week 1.3 Studio activity reports
Material: MDF (Medium DensityFibreboard) bricks.The base of the tower is a circle. Stretcherbond structure is shown in the tower.The wall of the first several layers is twiceas thick as the upper layers of the tower.This provides a more stable base for thetower. As is shown in the load path diagramabove, the loads of the upper part of thetower is transferred down to the groundthrough four load paths, which decreasesthe pressure exerted on the ground.
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One side of the tower is left open asrequired.At first, rubber bands were used to makelong thick beams. Those beams weredesigned to make a open door for thetower. However this was not practical asthe beam with rubber bands did not havea smooth plane, which makes itimpossible to keep the structure stable.Therefore, rubber bands were abandonedand stretcher bond structure was usedagain.
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After the first two parts of thetower were finished, the height ofthe tower was approximately 80centimetres. To increase the heightof the tower, the MDF bricks wereused in a different way as shownin the above photo.This led to a smaller contact facewhich made the tower less stable.However because of the lightnessof the MDF bricks, this change didnot cause an immediate fall of thetower.The tower was finished at a heightof about 1.3 metres.
The deconstruction processes werefirst on the lower and middle part ofthe tower and the tower survived forthe reason that the first and secondpart of the tower were relativelystable. However, the tower fell downwhen one brick was taken out fromthe upper part of the tower.When seen from the side of the tower,the problem became obvious. Asshown in above diagram, the towerwent outwards slightly as the heightincreased. Therefore, some slightlymovements of the upper parts coulddestroy the tower.
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Week 1.4 Subject Glossary
Load path: the path where loads go through when transferred down to the groundBeam:a piece of wood, metal or other materials used to support the building system in horizontal directionReaction force: a force which has the same magnitude as the applied loads but has an opposite directionCompression force: an external force which pushes on a structural element(Newton & Cameron 2014)Masonry: buildings that are made of stones (Oxford Advanced Learner’s English-Chinese Dictionary 2009:1239)Point load: loads are applied on a relatively small surface
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Week 2.1 Knowledge Maps of e-learning, readings and Theatre sessions
Map1
SolidEg. Egypt, China(early building)
SurfaceEg. The OperaHouse
Structural Systems Skeletal/ Frame
Membrane(less commonlyused)
Hybrid (most) Eg. ETFEBirds NestSwimming Cube
SailEg. Sports stadium
StructuralJoints
Pin Joints(common)
Roller Joints(less common)
Fixed Joints(most complexto calculate)
Map 2
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Map 3: Building Systems
(Ching 2008: 2.03)
Building Systems
ColumnsBeamsLoadbearing walls
Substructure
Superstructure Roof, exterior walls, windows,and doors
Enclosure SystemStructural Systems
Electrical system Mechanical SystemsWatter supply system
Vertical transportation systems Fire-fighting SystemsSewage disposal system
Waste disposal andrecycling systems
Heating, ventilating, andair-conditioning systems
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Map 4&5
(Ching 2008: 2.04)
ESD Strategies
Material efficiencyWater harvesting
Thermal massInsulation
Smart sun design
Cross ventilation
Night air purging
Solar energy
Wind energy Wind energy
Factors(when selecting,assembling andintegratingbuilding systems
EconomicConsiderations
RegulatoryConstraints
AestheticQualities
EnvironmentalImpact
ConstructionPractices
PerformanceRequirements
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Week 2.2 Studio activity reports
Material: balsa wood (light, weak, easy to bebroken)The base of the tower was a triangle. Allsurfaces were triangles in the first layer of thetower to ensure a strong base. However,because the material was not strong enough tosupport the tower, some other elements wereadded to the structure. This is shown in the twosketches in this page. This two extra elementsreduced the deformation of the frame to a greatextent.
To increase the height of the tower thepieces of wood was placed right upwards.As a result, the side surfaces of the secondlayer of the tower were squares rather thantriangles. Squares are not as stable astriangles, therefore an extra piece of balsawood was used to form a triangle insidethe square in each side of this layer.The final layer was not as high as thesecond layer and triangles were not used tosupport the frame.
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The final tower was about 1.45metres high.After it finished, loads were addedonto the tower. The tower couldafford the weight of 3 pieces of A4paper and when the forth piece ofA4 paper were put onto the top ofthe tower, it collapsed.The tower did not collapsethoroughly. Only two pieces ofwood were broken, while the otherparts remained in a good condition.
According to a clear observation, thefinal layer of the tower was not asstraight as the lower part. It formedan angle with the horizontalline(seen in the right diagram).Therefore, when loads were appliedon it, it wanted to rotate. This causedthe deformation of the frame, whichfinally led to the collapse of thetower.
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Week 2.3 Subject Glossary
Structural Joint: the place where the structural elements are joined togetherStability: the ability of a building system to keep its structure being undisturbedTension: an external force which stretches a structural element(Newton & Cameron 2014)Frame: the skeleton of a buildingBracing:a structural member that support or hold other members firmly(Oxford Advanced Learner’s English-Chinese Dictionary 2009:227)Column:a structural element used to support the building system in vertical direction
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Referencing List:
Ching, F. 2008. Building Construction Illustrated. Hoboken: John Wiley&Sons, lnc..
Newton, C. & Cameron, R. 2014. ‘Basic Structural Forces (I)’. Retrieved March 20, 2014, from https://app.lms.unimelb
.edu.au/bbcswebdav/courses/ENVS10003_2014_SM1/WEEK%2001/Basic%20Structural%20Forces%201.pdf.
Oxford Advanced Learner’s English-Chinese Dictionary. 2009. Oxford: Oxford University Press & The Commercial Press.