Logbook 3

LOGBOOK ENTRY Week 3!

Luke Adamson!

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Key things learnt this week! !

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An expansion joint is a vertical junction which is there to allow for brick expansion. For the moment bricks come out of the kiln they will begin to expand at a reducing rate over time.!

The stretcher face is any face of a brick that is present.!

The header face is the end of the brick!

Course is the vertical layers of brick!

Stagnant air is a good insulator!

Concrete blocks are usually used in construction when aesthetics aren’t considered.!

-Moment is a rotational force with the equation M= F x D (force by distance).!

-Conventionally, clockwise is the negative direction, anti-clockwise is the positive direction.! !

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a cantilever, there is meant to be 2/3 back span and 1/3 cantilever!

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Stability is the state where all actions have equal and opposite reactions, also known as being in equilibrium. The means that the sum of the horizontal, vertical and moment elements are all 0! !

http://chem-guide.blogspot.com.au/2010/04/reversible-and-irreversible-reactions.html!

This see saw is in equilibrium because the forces in all directions are equal!

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The centre of gravity is the point in a body where the mass can be assumed to be concentrated. A stable centre of gravity is located directly over the base.!

A strut is a member resisting compression!

A tie is a member resisting tension!

Footings are what are put in the ground to resist the applied loads.!

A pad footing is for point loads like columns!

A strip footing is for continuous loads!

- Piles and Piers are driven deep into the ground as foundations, usually used due to poor soil quality at shallow levels or site constraints.!

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CLASSROOM ACTIVITY ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !

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This weeks classroom activity was a guided walk around campus through various areas of the university where all students had to observe various things about each building, like the structural and construction systems and the materials used on each building.!

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It was clear that there was a multitude of different building practices and materials used on different buildings around campus due to the constant development of the facilities. For examples, the ornate brick facade of the 1888 building is completely different to the new construction of the Architecture building.!

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Throughout campus there is examples of many structural systems within buildings. The 1888 building is an example of a solid system with its thick brick walls which are common in earlier styles of buildings. The area outside the Sidney Meyer which is used for an area to rest and study is a shell or surface structural system where a the frame is surfaced and veneered by various materials. There is also a membrane system present at the back of union house.!

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Evidently the University is a body that has never really been lacking in finance as evident through the expensive material used on some of the buildings. A grand stature is present in the older buildings on campus like the old quadrangle and some of the colleges like Trinity and Queens. The major project at university now is the Architecture facility, which has cost around 130 million dollars.!

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Probably the most interesting thing was looking at the campus comparatively and noticing how different the buildings were to each other, something that isn't regularly noticed when on campus. Another thing which was interesting was to see the evolving methods of construction, from using brick veneer and weep holes to the use of large pre fabricated concrete slabs.!

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E-LEARNING & READINGS !

Structural Elements!

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a strut is a slender element which resists compression! a tie is a slender element which resists tension! a beam is generally a horiztonal element designed to carry vertical loads! a slab is a wide horiztonal element designed to carry vertical loads!

Footings and Foundations!

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foundations are the substructure found at the bottom of the building which go down into the soil whereas footings are on the surface and transfer loads into the ground.! settlement is a terms used where the ground beneath a structure compresses and sinks, which can sometimes cause cracking.!

Mass Construction!

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uses elements like stone, earth, clay and concrete! these are strong in compression, weak in tension! a bond is a pattern of units! a course is a row of units! a joint is the way that units are connected! mortar is a combination of cement or lime, sand and water.!

Shallow foundations are used in stable soil, whereas deep foundations are driven into the ground down towards bedrock when there is unstable soil!

http://www.craftsmanfoundation.com/raised.html!

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THIS WEEKS KEY TERMS GLOSSARY!

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Moment a measure of the tendency of a body to rotate around an axis.!

Retaining Wall a wall that provides support and holds back earth or water.!

Pad Footing a rather small thick footing that provides a way of transferring loads to the ground, usually for things like columns.!

Strip Footing a continuous footing where the length greatly outweighs the width.!

Slab on Ground a slab laid directly on the ground without being laid on a basement!

Substructure the underlying or supporting structure.

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