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DETAIL C2.d.

DETAIL C2.e.

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cold formed steel flashing

edge channel

glass toplight in steel frame

timber sliding screen as per detail elsewhere

well rounded light coloured pebbles on top of bitumen impregnated torch-no waterproofing

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DETAIL D1: Glass Floor

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Panel arrangement during exhibition

Panels used as stage curtains during performance

APPENDIX A: EXHIBITION/DISPLAY SYSTEMSTEMPORARY EXHIBITION SPACE

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Panels in lockable position (night time)

Panels in screen arrangement for movie screening

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DETAIL C1.b.

GALLERY

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Interior view of gallery

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CALCULATIONS OF ELEMENT SIZESNote: Calculations were done using values given in Orton(1988:41-43) table 1.10 and a Structural engineer’s suggestions.Standard steel sizes as per South African Steel construction hand-book

COLUMNS: Structural frame for temporary exhibition: Description: the frame will consists of steel columns and beams arranged according to the existing column grid of the basement under Lillian Ngoyi/Performance square. The structure must per-manently carry a light weight roof that produces wind load, and the first floor balcony, producing live loads. Columns must be of sufficient size to carry temporary floors for exhibitions and must therefore be able to carry a bigger live load.

d = H/30 for load bearing elementsd = H/50 for non-load bearing elements

d=H/30d= 7185/30d=239.5mm Engineer suggests that a 152x152x40mm mild steel I-beam would be sufficient sizeClosest available H-column: 203x203x46mm (Can have up to 8m unsupported height)254x254x107mm

Solution:240x85x33mm galvanized steel parallel flange channels on either side of 60x120x3mm galvanized mild steel rectangular hollow profile as per detaild = 85 + 85 + 60 = 230mm

INTERIOR COLUMNS: LARGEST UNSUPPORTED HEIGHT: 4500mmd=H/30d= 4300/30

d= 144mm

Average height:d=H/30d= 3200/30d= 106mm

BEAM SIZES:L/d = 20d = 8475/20d= 423.75mm

L/d = 20D = 9150/20d = 457.5mm

Size can be reduced by creating stud beams with composite floor system: decking is fixed to beams with steel studs before con-crete is poured. The floor and beam now work together as a larger beam thereby reducing the size of the beam.

Further reduction of beam size: more smaller beams to be used in the same direction.

L/d = 30d = 8475/30d=282.5mm

L/d = 30 d = 9150/30d= 305mm

305x165x41mm305x203x60mm mild steel I-beam up to 9m span (according to South African Steel Construction Handbook)

LONG SPAN BEAMS OVER EXHIBITION AREA/DANCE STUDIOMild steel I-beam:18300/d = 28d= 653mm

APPENDIX BOCCUPANCYMuseum – 1 person per m²Place of Entertainment – 1 person per m² or number of fixed seats.Place of instruction – 1 person per 5m²Parking garage – 1 person per 50m²Small shops - 1 person per 10m²

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No available size. Uneconomical and heavyRolled steel trusses:18300mm spanL/d = 1518300/d = 15d = 1220mm

Roof above dance studio:L/d = 25d = 18300/25d = 732mm

DOWNPIPESTotal roof area: 2592.8 m2

100mm2 downpipe per 1m2 roof areaTotal nr of downpipes required =xx= 2592.8x100Total area of downpipes = 259280mm2

Suggested size 120x60mm = 7200m2

Total nr. Of downpipes needed: 259280/7200=36 downpipesTotal nr of columns available for downpipes: 34 + two additional downpipes

GUTTER SIZE (WALKWAY)Total size of walkway = lxb= 63.618x 8.355=531.5m2

140mm2 gutter per m2

cross sectional area of gutter = 140xsize of area sloping to gutter531.5 x 0.140= 74410mm2

Suggested gutter size = 400x100

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NORTH ELEVATIONFig.1. EAST ELEVATIONFig.2. WEST ELEVATIONFig.3.

SECTION N/S LOOKING EASTFig.4.

SECTION THROUGH CINEMAFig.5. N/S SECTION LOOKING WEST Fig.6.

APPENDIX C: ABSA BUILDING SKETCHPLANS

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PLAN LOWER BASEMENT LEVELFig.7.

PLAN UPPER BASEMENT LEVELFig.8.

PLAN GROUND FLOORFig.9.

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APPENDIX D

SECTION THROUGH VAN DER WALT STREETFig.10. SECTION THROUGH CHURCH STREETFig.11.

GROUP URBAN DEVELOPMENT FRAMEWORK

Pretoria, despite being one of the capital cities of South Africa, is not an internationally known destination city. It lacks the facilities and attractions of Johannesburg and Cape Town, and therefore does not enjoy the international attention received by these two cities. This framework aims to celebrate Pretoria’s unique identity and to strengthen this identity, thereby creating a world-class city. It specifically focuses on issues of orientation within the city, and creating a unique character by highlighting certain important paths and precincts.

Aims of the framework

1. To make Pretoria a destination:

2. To enhance its unique identity

3. To orientate the user

4. To enhance movement on a pedestrian scale

5. To define CBD precinct & unique character

6. To define main routes and create new pause spaces

7. To enhance visual clarity

The framework proposes the celebration of the two major axes in the city: Church Street, and Paul Kruger Street by giving each a specific identity. A series of public spaces exists along these streets, and a number of new nodes and “pause areas” are proposed. These nodes and “pause spaces” allow visitors and city users to orientate themselves when moving through the city, and to pause to notice their surroundings.

Paul Kruger Street is defined as the “historical” spine. This street contains a number of buildings of historical importance. Intersections along this street are to be raised and paved with brightly coloured mosaic representing images of the city’s unique character. Sculptures and public art works are to be placed on the corners of these intersections. Buildings along this street are to have screens/panels/shading devices in an orange colour to give the street a unique identity. A new Northern gateway is proposed in the area of the Pretoria Zoo.

Church Street is defined as the cultural market spine. A large section of this street is already a pedestrian boulevard. Spaces and buildings along this street should reflect this identity. Public functions, restaurants, pubs and evening entertainment are to be placed and extended in this street. The street character must be extended to a new eastern and western gateway node.

“On the one hand, people look for order, security and a sense of completeness in their immediate spatial experienc-es; on the other hand, they look for mystery, challenge, and stimulation.” Goldsteen, J.B. & Ellliott, C.D. 2004: 136.

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FIGURE GROUND OF PRETORIA CBDFig.12.

Van der Walt Street is defined as the market street stretching from the Bloed Street Mall to Burgers Park in the south. More commercial activities are to be introduced in this street and pedestrian access is to be optimized.

Vermeulen, Pretorius and Schoeman Streets are identified as important movement streets in the inner city. These streets are to be paved and planted with indigenous trees.

New buildings along these streets should:

• React to existing arcades

• Relate to the specific character of the street

• Have interactive facades at street level.

Furthermore, movement spines must be intersected with pause areas, main orientation must be towards the street, thereby unveiling elements of surprise (arcades and smaller squares placed outside main movement spines. High activity is encouraged around open spaces.Framework: 2009

Group: A. Seabrook, C.Theart, L.Cloete, A.

Verster. R. van der Walt, P. du Toit, A. Allers.

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APPENDIX E: PHYSICAL MODELS

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