Week 03 journal

|W03| STUDIO

Building 1: Lot 6 Cafe

(CHING, 2014, p. 2.14)

CAMPUS LAB 1

Guided walk around campus in studio groups observing buildings

GLOSSARY

Moment: tendency to make an object or a point rotate1

Retaining wall: a wall that holds back earth or water.

Pad fooAng: A thick slab-­‐type foundaAon used to support a structure or a piece of equipment.2

Strip fooAng: A conAnuous foundaAon of which the length considerably exceeds the breadth.3

Slab on ground: A flat, horizontal (or nearly horizontal) molded layer of plain or reinforced concrete, usually of uniform but someAmes of variable thickness, posiAoned either on the ground or supported by beams, columns, walls, or other framework.4

Substructure: The foundaAon of a building that supports the superstructure.5

1 (STRUCTURAL CONCEPTS geometry & equilibrium, 2014)

2 hYp://www.dicAonaryofconstrucAon.com/definiAon/pad-­‐foundaAon.html

3 hYp://www.dicAonaryofconstrucAon.com/definiAon/strip-­‐foundaAon.html

4 hYp://www.dicAonaryofconstrucAon.com/definiAon/slab.html

5 hYp://www.dicAonaryofconstrucAon.com/definiAon/substructure.html

Lot 6 café and its structural systems significance is mainly through the beam which crosses from the exterior of the building to its interior through the ceiling, as depicted in the image below. This beam is a horizontal element designed to carry verAcal load using its bending resistance. Beams are usually built with materials that can endure/support both compression and tension. They are “rigid structural members designed to carry and transfer transverse loads across space to supporAng elements. As evident, it is one of the main support mechanisms for the structure of the café. The structure is exposed, and plays an important role in the character of the building. Its connecAon with the brick wall demonstrates how it transfers it load. This can be depicted by a load path.

Load Path Diagram

This diagram displays how the loads are transferred for this specific building. The beam transfers the load to the brick wall exterior to the café, and to the glass wall/beam on the surface of the café. These are the visible support mechanisms.

Building 2: Underground Car Park

Building 3: Arts West Student Centre • The structural system for the car park is a surface structure. This is mainly due to its form and composiAon. • There are beams transferred through the structure and columns supporAng the structure above the car park.

• It has a hyperbolic concrete shell shape formed with arches, however is concealed.

• It is the most effecAve way to transfer loads across the mulAdimensional arch form towards the columns.

• The space within the arches/columns contains soil for the rooeop (south lawn) which allows for plants to grow.

• EffecAve structural system to hold such a massive load on top. In situ concrete plastering.

• The concrete shell was poured on site through the use of a Amber framework to form the shells.

• There are lines which are evident on the concrete ceiling which depict the former framework which was stripped off once shape was formed.

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The depth of the truss and the individual members help to support the whole truss system. It allows itself to span across a large space similarly to last weeks bridge concept.

The structural system is a truss, as there is a high use of beams which connect diagonally and verAcally to throughout the enAre structure.

The structure is to a certain extent for visual purposes, as a decoraAve feature, however would also play a minimal role in the support system of the building.

The structure is evidently expressed and is not concealed.

There are different structural joints and the welding is obvious in the top lee image provided, suggesAng that the beams are joint through this construcAve process. These are fixed joints.

Building 4: Stairs on west end of Union house

• The structural system is that of a skeletal frame.

• The main materials are steel beams and Ae cables to connect and support the structure.

• Tie beam up and retransfer the load back to the beam, beam brings the load back to the brick building for support.

The above diagram depicts the load path of the structure. The load is transferred to the brick building from the cables, to the beam and then to the wall.

hYp://www.ce.berkeley.edu/~astaneh/Ast-­‐Blk-­‐Bridge/ Astaneh-­‐Black-­‐Bridge-­‐Photo.jpg