Construction + Structures 2

Sunday, April 22, 2007

Site Visit #4: Federation Square, Melbourne

Federation Square, Melbourne (or Fed Sq). It comprises a series of buildings containing a public broadcaster, art galleries, a museum, cinemas, exhbition spaces, restaurants, bars and shops around two major public spaces; one covered (The Atrium), the other open to the sky, and composed of two spaces that flow into one another (St. Pauls' Court and The Square). The majority of the precinct is built on top of a concrete deck over busy railway lines.

Federation Square occupies roughly a whole urban block. The open public spaces are directly opposite Flinders Street Station and St Pauls' Cathedral. The layout of the precinct helps to connect the historical central district of the city with the Yarra River. The result of an international design competition, Federation Square was designed by Don Bates and Peter Davidson of Lab Architecture Studio.



Details:



Construction
The construction of the deck beneath the Square is understood to be the largest expanse of railway decking ever built in Australia. The deck is supported by over 3,000 tonnes of steel beams, 1.4 kilometres of concrete 'crash walls' and over 4,000 vibration-absorbing spring coils and rubber padding. The deck is designed to support some of the most sensitive uses imaginable - galleries, cinemas, and radio and television studios - and it needed to isolate them from vibration and noise.


The Facade

The building façade system, utilising new understandings of surface geometries, allows for the individual buildings of Federation Square to be differentiated from each other, whilst simultaneously maintaining an overall coherence.

Three cladding materials: sandstone, zinc (perforated and solid) and glass have been used, structured within a triangular pinwheel grid. This modular system uses five single triangles (all of the same size and proportion) to make up a self-similar triangular (but larger scale) "panel". Five panels (following the same geometrical logic) are joined together to create a larger scale, self-similar triangular "mega panel", which is then mounted on to the structural frame to form the visible façade.

Through the varying proportions of façade materials within this triangular grid and their combinations within a changing set of patterns or figurations, unique surface qualities have been developed not only for each building, but also for the different orientations of each façade.

The Square
The square was the civic and spatial component for Federation Square, establishing connections with the diverse context of the city and the surrounding urban and riverside landscape. The design allows for a vast array of uses, from the largest scale public gathering of up to 15,000 people to intimate areas for relaxation and thoroughfare.

To distinguish it from the city's existing pavement, the square was surfaced in hand-laid (approx. 500,000) cobblestones of variegated coloured Kimberley sandstone. The sandstone paving has been laid in a patterned design as one of the collaborative components of the public artwork programme. Paul Carter, writer and artist, linked this overall design to a separate artwork called nearamnew, set within the Square's surface. This work of sandblasted paving records and voices the site's history through the cultural encounters that have marked it as a site. Consisting of a series of overlapping stone tablets inlaid with layers of typographically scaled and interwoven texts, the artwork reflects different and often conflicting subjects and stories throughout the site's history.





Reference:
http://www.federationsquare.com.au/
http://en.wikipedia.org/wiki/Federation_Square

Wednesday, April 18, 2007

Site Visit #3: at Yarra Street & Malop Street, Geelong

The construction of the Westfield Bay City Plaza. Below, are the pictures of the site and its development.



















Saturday, April 14, 2007

Site Visit #2: Geelong Waterfront - Carousel

The Carousel

A stunning pavilion of steel and glass was designed to house the ride, its steam engine and the large band organ. In the heart of Geelong, beside Steampacket Quay on the Waterfront. The custom-made pavillion has been recognised for its design excellence, winning the 2002 Victorian Architectural Award for its architects, McGlashan Everist.



Below, are some of the details of the building itself:



Detailed pictures of the exterior

These pictures shown above is to show you the connection style of the building with the use of bolts. Really strong connections to prevent from strong winds since it is near the bay.





Detailed pictures of the interior (ceiling)


For more detail, visit this website:

http://www.gaa.com.au/case_studies/case_gc.html










Tuesday, April 10, 2007

Site Visit #1: Hope Street, Geelong West.

The Site

Tilt-up Construction
Tilt-up concrete construction is a proven method for building office buildings, retail centers, warehouses, distribution centers, call centers, manufacturing facilities and other commercial / industrial structures with speed, safety and construction cost benefits.
In a tilt-up construction project, the building's walls are poured directly at the jobsite and are created horizontally in large slabs of concrete called "panels". These panels are then raised into position around the building's perimeter forming the exterior walls. This means the tilt-up structure's exterior wall is virtually finished when it is tilted into place. Tilt-up construction allows general contractors to build a wide range of commercial buildings more quickly and with lower construction costs than what is typical for traditional masonry construction projects.




Proppings

The tilt-up panels are supported by proppings/bracings. The proppings are screwed onto the concrete slab for a temporary brace stiffening. The line of slots on the bottom of the tilted up panels allow the concrete slabs to join up with the panels, allowing the panels to act as a structural component to support the whole building. When this is done, the propping will be removed.

Related websites:

http://www.tiltup.com/

http://www.kmgtiltconstruction.com.au/html/about_tilt_construction.html

Thursday, April 5, 2007

Week 5: Detail Sections

I have sketched two sectional drawings for this week.
Section of a box gutter

Detail of a parapet roof