I'm not sure whether the Supporting steel it a portal fram as it has a knee joint to transfer the bending moment down, however it also looks like a truss has been used to span the large distance.
Here you can see the bracng and additional suppport.
You can see the cleat that's welded to the 'I' beam. The 'Z' purlin was made from metal sheeting and i bent it using a metal bender. You can see the bolts that connect it to the cleat and the 10mm gap that raises the purlin off the rafter. 
We were driving into uni today and we're so excited when saw these massive trucks that were transporting the precast concrete panels. Only a construction student would be that happy to see a truck. Crazy stuff.
Anyway when it approached the next corner it struggled to complete a U-turn in the space provided. One issue when ordering concert panels is to ensure that thy can be transported to the sight, therefore it’s recommended that concrete panels are no lager than approximately 9m X 4m.
In my photo’s you can see the truck attempting to do a U-turn to access the sight.
I went to melbourne today and i'm still facinated by the roof over spencer street station. I found the best website that shows the step by step development of the roof. It's worth checking out. 
When I took these photo’s I noticed that although it was a complicated structure, it's very repetitive. Perhaps the structured is so detailed and complex because of the large span and curved surface. The construction procses developed by deviding the roof into heaps of small sections which were latter held in place by a crane and welded.
This is an arial view of the roof. It's pretty cool.
This photo of the knee joint connection of the portal frame with a box gutter is simular to what I am doing for my major project. I notice the hunching that gives extra support to the beam so it can have a larger open span. We can clearly see the bracing, the bolts and welding that connect the ‘I’ beams, the underside of a box gutter, extra stiffening between the flanges of the column, the purlins, cleats and the girts.
Shown in this photo is the apex connection for north wall at Bunning’s warehouse. We can see the bolted connection of the rafter, as well as the hunching that adds additional strength. A central column, allows the warehouse to span a greater distance as us spreads the weight more evenly.
This shop drawing shows the layout of my 'I' Beam. We can seen where the cleats and bolts are situated.
This shop drawing articulates the location of the roof bracing.
This shop drawing the is used to create my precast concrete pannel. You can see the location and sizes of elements that are precats such as the welding plate.
This is my precast load bearing concrete panel, with a pre cast plate to weld my rafter to.
I've been looking at both load bearing concrete walls and steel construction for my project and I fond these sites really useful:
www.bluescopesteel.com.au
Good details of different fixings and general information such as standard sizes.
www.homeimprovementpages.com.au
This site has some useful links and acts like the yellow pages as it lists professional in different fields.
www.cement.org
Great general information.
I think the work of Frank Lloyd Wright (1867-1959) would be interesting to look at for my major project. In particularly the Influenced by the industrial revolution his designs display an interest in developing new materials and experimenting with there properties. For example he manipulated sheet metal with a patterned surface making it both decorative and functional. He also used the individual properties of concrete to create revolutionary designs.
Wrights architecture is organic as it blends with the environment and surroundings, as he incorporates spatial and sculptural together. To achieve this he used materials and elements from the natural landscape including stone. The buildings had and organic flow to them as movement of people began at one place and followed a journey to finish at another. Frank Lloyd Wright sometimes referred to organic architecture as one in which “all parts were related to the whole.” I would like to make the warehouse organically fit within its site.
The Johnson Wax building used large concretes mushroom, ‘dendriform’ shaped structures that are two stories tall to support the roof. The construction of the building created controversy in its structural design as the “Lilly pad’ shaped columns were not in according to building codes at the time. Building inspectors required that a test column be built and loaded with twelve tons of material. The test column, once it was built, was loaded with sixty tons of materials before the "calyx", or part of the column that meets the lily pad, cracked (crashing the 60 tons of materials to the ground, and bursting a water main 30 feet underground). Wright was given his building permit after this demonstration.
Wright’s use of concrete was revolutionary, as he used it as both a decorative and structural element. Reinforced prefabricated concrete was a common element in his buildings. This is one element that I will incorporate in my warehouse design.
It is important to note that event though the architecture of Frank Lloyd Wright was revolutionary and advanced it still contains imperfections, such as cracking in the large cantilevers of his Fallingwater.
Although this is a very simple detail, it’s a common element that needs to be considered in construction. The timber is protected by the aluminium capping and the overlapping of the Zincalome Flashing stops water entering.
The new development at 
Because this is only a small residential construction access to the roof structure is far easier. You see the machine that allows access to the roofing structure.
Here you can see the different elements that are precast into the concrete panels, such as the precast steel plates and the pros that hold the concrete on place until enough structure (such as the roof ) has been erected to stabilise and support the panels. You can also see the 'I' beam that butts the tilt up concrete. 
This image is extremely useful and is what I have referred to for my project as it shows the 'I' beam connecting to the tilt up concrete panels, as well as the underside of a box gutter. Chris has offered to show me some details and shop drawings of this connection in a few weeks when this stage of the building has been completed.
Here we can see the how the Tilt up concrete panels are connected and supported. They are initially precast with plates that latter welded to connect them to the other elements. Corking is also added to allow for fire resistance, slight movement and waterproofing.
I love this photo because it is so clear and easy to understand. We can see the apex of the roof and the connection of the 'I' beams. They are pre fabricated off site with plates on the end and holes for the blots to connect them on site. This apex is connected by 8 bolts. Above the Rafters are the 'Z' purlins, then the safety mesh, sarking and then clip lock roofing.
This shows the additional roof space that was made to allow for an internal climbing wall. Notice the diagonal bracing and added 'I' beams underneath for added support.
This shows the beams supporting the rafters, as well as the 'Z' purlins, cross bracing and safety mesh. The 'I' beams/rafters connect above the vertical beam because the weight can then be distributed more evenly.
Corking. A gap is left between concrete construction to allow for movement and settling this can be seen in the photo to the right, that shows the gap filled by silicon corking, for fire safety.
Post Tension Stress Cables, are a major support for the concrete slab construction. Before the concrete is pored the stress cables are fused at one end and laid in a wavey motion. 24 hrs after the poring process the cables are pulled by the onions at one end. This process is repeated a week later to asses the strength of the concrete. The pulling tension straightens the waves in the cable, to help hold up the concrete slab construction. On the image to the left we can see by the pink marks how much the cable has been pulled by.
The Resort is located on the site of the Old Zeally Bay Caravan Park, Torquay, it's looks over the beach and is a 65 Million dollar project. Built buy Hickory construction it comprises of over one hundred apartments, two large swimming pools and 12 pent House sweets, it is a large and exclusive resort.
I visited the site with Kate. It was good fun and everyone was really helpfull. It was my first site visit so i was a little nerous, but it ended up being really informative. I learnt so much and understand the roll of a construction manager so much more.
