I was interested in the use of plywood box beams utilised in thsi design fro the LAusceston Swimming Pool. I encounteres this projedt analysis article on the Timber Building in Autralia website when I was considering this construction method for my major assignment. The design fro the pool was initially to be constructed of conventional steel portal frames with piered footings and tilt slab walls. However, prices for this system were too great and an alternative timber system was considered. The final building was determined to be constructed of arced 950mm deep plywood box beams, with 190x45 F5 Pine pulins, and a reduced cost of $14000! The plywood box beam rafters are supported by 190 thick band blockwork walls The plywood rafters were constructed into a curve with the aid of a jig, and nailed together with stiffeners. The beams were then fixed to the band walls usign chemset anchor bolts. Moisture resistance was also an important factor with the facility housing a swimming pool, and hence the timber was appropriately sealed on all faces. the study is a good exaple of the use of timber in preference to steel, to achieve a cost effective, aesthetically pleasing and totally plausable design.
IMAGE: Elevation of the blockwork band walls and the plywood box beam.
IMAGE: Detail of the plywood and band wall joint.
IMAGE: Section through one plywood box beam.
IMAGE: Construction of the plywood box beam.
I was interested in the use of plywood box beams utilised in thsi design fro the LAusceston Swimming Pool. I encounteres this projedt analysis article on the Timber Building in Autralia website when I was considering this construction method for my major assignment. The design fro the pool was initially to be constructed of conventional steel portal frames with piered footings and tilt slab walls. However, prices for this system were too great and an alternative timber system was considered. The final building was determined to be constructed of arced 950mm deep plywood box beams, with 190x45 F5 Pine pulins, and a reduced cost of $14000! The plywood box beam rafters are supported by 190 thick band blockwork walls The plywood rafters were constructed into a curve with the aid of a jig, and nailed together with stiffeners. The beams were then fixed to the band walls usign chemset anchor bolts. Moisture resistance was also an important factor with the facility housing a swimming pool, and hence the timber was appropriately sealed on all faces. the study is a good exaple of the use of timber in preference to steel, to achieve a cost effective, aesthetically pleasing and totally plausable design.
IMAGE: Elevation of the blockwork band walls and the plywood box beam.
IMAGE: Detail of the plywood and band wall joint.
IMAGE: Section through one plywood box beam.
IMAGE: Construction of the plywood box beam.
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