Tuesday, May 29, 2007
The K.D Stewart Centre
Issue: Ballarat's Cracking
I went home for the weekend to Ballarat for the first time in ages and I noticed heaps and heaps of new cracks in the houses in my street, especially the brick homes. I was also shocked to see the dry crusty surface of the lake I used to sail on. I thought about this more and concluded that drought is having a great effect on the soil and foundations of the houses. The lack of water is causing the houses near the lake to crack as the soil and foundations dramatically move. Millions of dollars of structural damage has occurred due to the drought as well as a loss of habitat and ecosystems.
"The Council are keen to try and get as much water as they can for the lake, and they're going to have to either get that donated, or purchase it, and that will take a little while, so we've stepped in as Central Highlands Water and agreed to provide 150 megalitres basically as soon as we can, so over the next day or two, we'll open the old pipe that hasn't been opened for the last five years, and see what needs to be done there and get some water flowing through it," says John Barnes.
Model Development
Here you can see the box gutter, connecting with the concrete slab. The cliplock roofing is angled at 2 degrees and flows into the gutter. You can also see the safety mesh, insulation and 'Z' purlin.
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.
Saturday, May 26, 2007
Transport Issue
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.
Spencer Street Station
This is an arial view of the roof. It's pretty cool.
Bunnings Visit
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.
Thursday, May 24, 2007
Site Drawings
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.