WEEK 07-‐OFF CAMPUS Background information • 55 apartments • Built for student accommodation • 9 levels • Building is approximately 65% complete • Construction budget: $13 million Ground floor • Service floor –all electrical wiring will be located here
• •
• • •
Pre-‐cast panels make up the external walls As one of the main materials used for the construction of this building is concrete, the building is very heavy with the load received at the end of concrete pylons. To withstand the heavy load, the pylons are large in size and have been reinforced with steel The floor is made of concrete slabs which are in tension As the building is in the stage of ‘finishing’ plasterboards are beginning to be fastened to the internal walls. The stairs leading up to the first floor are constructed using steel sheeting which are acting as form work
First floor • On the ceiling, hatch access panels have been included to store service components in the future • On the walls, which are dividers between each room, the plasterboards have patches of red on them to show they have been fire checked. This building is able to contain fire for 90 minutes • The rooms on this level consist of double stud walls and double fire check sheets • Acoustic insulation has also been included in the design; between each wall there is a 20 ml gap containing air, which allows for acoustics. • The windows have all been sealed with rubber • In the middle of the first floor, there is an inclusion of a light wall made of glass to enable more sunlight to enter the building Eighth floor
Box gutter
• • • •
The ceiling has mechanical ducts which will be used as air conditioning When the internal walls were constructed, casting plates were set to make the panels The floor is made of concrete poured in one go ‘in-‐situ’ There is spanning occurring on this floor, with the largest span being approximately 12 meters. The concrete columns break the span. These concrete columns are in tension
Top floor • They have used battens instead of studs for the walls
• • • • • • •
Timber will be used for towel rails and in built cabinets. Inclusion of vents Brass tap fittings Longest span is 12 meters The steel structure acts like a tie An inclusion of service penetrations which have been fire rated The roof is layered on purlins. In addition, there are roof braces to stop the roof from twisting.
Use of steel trusses for external wall
Roof • Consists of steel ridges and counterweights • Flat roof • T
• •
Top layer is a steel sheeting which is 3mm in thickness The steel sheeting has been attached via a series of screws