Constructing Environments ENVS10003 Semester 2 2014 A01-Logbook Week 7: Detailing Strategies 1 Studio Report This week is the off campus tour.
VCCC (Victorian Comprehensive Cancer Centre) is a demolition of the Royal Melbourne Dental Hospital. There are 13 levels and car parks are also available. The new site is the former Royal Dental Hospital with a bridge as a link for crossing the two sides of roads. Circular structures are used in the constructing process. They decide to achieve this by digging through the bedrocks in order to place temporary framing for pouring concrete to it. In this case, Steel reinforcement is also applied to this framing.
Floor system is mainly supported by the Bondek with the poured concrete. Floors are separated into many sections for the steel reinforcement. For other temporary support, timber plays an important role. Timber is placed under the framing when the concrete slabs put in instead of sticking the slabs to the timber. The substructure poles are mainly used in the buildings to carry the loads. Once the construction is finished, the load can be directly transferred into the ground. Concrete beams and columns are used. Also, for the reinforcement, tension cables are also situated through the columns and beams. It may increase the allowance of the maximum heights.
When considering the bridges, it is built by many trusses at the each ends of the bridge. They are able to carry the loads and are able to take the forces from the vertical ways. Cranes are used for building processes. The bridge is used for pedestrians and because of the structure, a long walkway around 45 meters is created.
Stud Framing is used for the foundations. They used the cold-framed metals and the reinforcement with concrete panel is also applied to the framing. Timber studs for attaching materials for the wall.
The In Situ concrete is used in some of the rooms such as the Radiation room. It is mainly used inside. The walls in the room have to thick enough to avoid passing through the radiation. The precast concrete is used as well. But it is
mainly used outside. Large transfer beams are used for carrying the loads and designed to in a circular shape in order to match up.
Learning Loop
Controlling Moisture: In order to avoid water penetrating of buildings, there are 3 conditions that are needed to meet. • NO Openings • Keep water away from the openings • Neutralise the forces to keep water away from the openings. Openings: can be both planned and unplanned. Planned Openings: windows, doors, etc.
Unplanned Openings: are created by the material deterioration. Methods of removing the openings: • Sealant (e.g., silicone etc.) • Gaskets (e.g. preformed shapes that made from the artificial rubbers etc.). Methods of keeping water away from the openings: • Sloping window and doors sills and roof or wall flashings. • Grading roofs, water collected in gutters and set to downpipes and stormwater systems. • Overlapping cladding and roofing elements such as weatherboards and roof titles. • Sloping the ground surface away from the walls to allow the water run away from the building. Controlling Heat: the gain and loss of heat occur in 3 conditions stated below. • Heat is conducted through the building envelop. • Use thermal mass to regulate the flow of heat through envelop. • Building envelop and elements are subjected to radiant heat sources Methods of controlling: • Thermal insulation to reduce heat conduction • Double or triple glazing • Thermal breaks made from low conductive materials to reduce transformation of heat. Methods of controlling air leakage: • Weather stripping around the openings • Eliminate opening, air present at openings, and force it move away from the opening. • Wrap building in air barrier. Rubber: can be used as silicone (seals), flooring (labs), insulation, house and piping and gaskets and control joints (neoprene, EPDM). When rubber exposes to sunlight, it can lose its properties. Plastics: are made by carbon, silicon, nitrogen, oxygen, hydrogen and chloride. • Thermoplastics: mouldable when heated and solid again when coupled. (E.g. polyethylene, perspex, acrylic, etc.). • Thermosetting plastics: only shaped once (e.g. laminex, polystyrene etc.) • Elastomers: synthetic rubbers. (E.g. EPDM, silicone etc.).
Glossary: Gutter: is a shallow channel of wood, metal or PVC that is positioned below and following along the eaves of a building for the purpose of collecting and diverting water from a roof.
Vapour: is a substance diffused or suspended in the air, especially one normally liquid or solid.
Drip: is a groove in the underside of a projection, such as a windowsill that prevents water from running back into building walls.
Flashing: is a thin and impervious sheet of material that placed in construction to prevent water penetration or direct the flow of water. It is mainly used in roof hips and valleys, roof penetrations and joists between a roof and a vertical wall.
Down Pipe: is a pipe to carry rainwater from roofs to drain or ground.
  Insulation: used to protect against fire of the transfer of electricity, cold, heat, moisture and sound.
Sealant: is a material that used for sealing to make it watertight or airtight.
References: Ching, F, D.K. (2008). Building Construction Illustrated. Hoboken, NJ: John Wiley & Sons, Inc. Durasteel Suspended Ceiling Membrane EI240 (fire from above or below method 2), Invicta. 2014. Retrieved from http://www.durasteel.net/ invictaimages/durasteel/specifications/durasteel-suspended-ceiling-membraneei240-above-below-2.jpg Guttering and Downpipes, Action Roofing, 2014. Retrieved from http:// actionroofing.com.au/wp-content/uploads/guttering-90mm-round-downpipehouse-160x120.jpg Gutters and Downputs: Hung Gutters, Copper Development Association, 2014. Retrieved from: http://www.copper.org/applications/architecture/arch_dhb/archdetails/gutters_downspouts/images/gds8b.gif M-D Building Products 6247 36-Inch Aluminum Drip Cap, Amazon, 2014. Retrieved from: http://www.amazon.com/M-D-Building-Products-36-Inch-
Aluminum/dp/B000H5MSNK University of Melbourne (2014).W07_c1 Detailing for Heat and Moisture. Retrieved from: http://www.youtube.com/watch? v=Lhwm8m5R_Co&feature=youtu.be University of Melbourne (2014).W07_m1 Rubber. Retrieved from: http:// www.youtube.com/watch?v=OPhjDijdf6I&feature=youtu.be University of Melbourne (2014).W07_m2 Plastics. Retrieved from: http:// www.youtube.com/watch?v=5pfnCtUOfy4&feature=youtu.be Use of Flashing at Building Line on Built-up Roof, 2014. Retrieved from http:// engineeringtraining.tpub.com/14069/img/14069_223_1.jpg Water in Earth’s Atmosphere May Cause Climate Warming, Climate Himalaya, 2014. Retrieved from: http://i1.wp.com/chimalaya.org/wp-content/uploads/ 2013/10/water-vapour.jpg?resize=259%2C194