ENVS10003 Studio Journal Week 7 Christian James Virgona â€“ 641276 Â
The site we attended today was an extension project and an internal remodel from an existing house built in 1978. The house had been stripped and the framing had been enhanced to ensure sturdiness. Wall Structure: The wall structure was comrpised of timber framing which was generally consistent with the time period in which this house was developed. However, there were various instances where the initial builders had been untidy and potentially rushed in the construction process. Figure 1 shows framing where a previous wndow existed and how the framing is messy. Figure 2 & 3 also shows how the spacing of the development was not to the general measurements of 450-600mm, infact the studs are 1200mm apart, because of this. The developers have had to reinforce the wall structures with steel battens. These battens will allow for plasterboards to be attached easier and insulation to be packed into wall unit.
(Figure 1) Untidy Framing
Steel Battens to enforce wide spacing (Figure 3)
Load Bearing Structures: This type of development was a Post & Beam house construction form. This form of construction was typical of the time period in the 70â€™s when this home was being developed. All beams were cylindrical timber which again was consistent with the period because steel was far too expensive (Figure 4 shows a typical wooden beam in the house). However the extension of the canopy has meant that 3 steel posts have been introduced into this development to increase the load bearing capacity of the house. These beams as seen in Figure 5 have replaced wooden beams that once accounted for load bearing capacity of this development. From an aesthetic perspective, these posts also cantilever the weight of the canopy, which means that there is an un-interrupted view of the garden area. (Figure 4)
This timber post has been bolted into the ceiling structure and is not only holding weight of a building. The spiral staircase has also been cut into the post as well
This shows how the steel post has been welded and fused to the steel beams in the roof structure, these beam cantilever the weight of the canopy above which allows for viewing of the garden. The bottom arrow also shows where a timber post has been removed and been replaced by stronger steel
Roof Structure: The roof structure consists of a series of timber beams which have been left exposed by the builder for aesthetic purposes. These beams have been bolted and are designed to carry loads across the span of the beam towards the joint (Ching 2008). These beams are connected by bolts to a bracket. Figure 6 shows the joint of the roof structures on the above floor and how several beams are connected to the one bracket. The load bearing capacity of these beams would be easily sufficient to support the weight of the roof hence the builders not altering them. Because of the shear width and amount of beams, they would be able to easily hold the roof without bending too much.
(Figure 6) Timber Beam Structure Structure
(Figure 7) Bracket Connection
(Figure 8) Bolted into Wall
References: • •
Ching F. (2008) Building Construction Illustrated, Fourth Edition, John Wiley & Sons, New Jersey STRATCO (2013) Steel Framing – Steel Wall Framing [Date Accessed 19th September] http://stratco.com.au/Products/Steel_Framing/Steel_Framing.asp