PURPOSE OF THE STRUCTURE:
To house a large indoor, multi-function space as a major educational facility for a premier girls high school and to increase their hall accommodation from 400, built in 1938, to 1400.
BRIEF TO THE ARCHITECT:
To create an indoor space capable of housing:
- The school assembly hall and exam
- An indoor playing field to comply with Olympic specifications for indoor
- Use for indoor basketball, volleyball, badminton and
- Multifunction venue for dramas, dances, fashion shows and
- Stepped viewing terraces to seat 250 persons. Form of Building:
- Essentially an industrial “shed” with various beautiful “diamonds” on it, as per the Porte’ entrance, stonework, raw hardwood terraces, facebrick, frameless glazing panels and timber movable ventilation
- Elements of “African” identity are introduced as per curved walls, raw circular stonework, with chevron truss lattices reflected in side cladding polycarbonate V shaped
- Main entrance Porte’ celebrates the existing outdoor court, and acts as a visual focus and entry inducement into the main space using tubular “tree”
- Curved facebrick walls guide the ingress into the “shed” under the curved Porte’
- Off shutter concrete, coated steel, raw hardwood timber and facebrick finishes are juxtaposed in achieving a low maintenance and a “raw” material
- Environmental conservation to achieve a “green” building was applied where possible. eg. Water harvesting, no mechanical ventilation and utilising roof light daylight
BRIEF DESCRIPTION OF THE STRUCTURAL FRAME:
- An aesthetic decision was made to express the dynamics of a steel clear span structure, integrated with the translucent sheeting panels of the gable frames and south
- The roof trusses feature tubular sections with profiled gussets framing into H section top
- The purlins are standard cold rolled lipped channel
- The terrace seating, stairs and handrails express
CHALLENGES IN THE FABRICATION OF THE PROJECT:
- Approximately a third of the truss was erected as a temporary roof at first floor hall level during an earlier
- To complete the Project the new roof was site connected to the existing structure and re- erected at the higher new roof
- This required challenges in the site fabrication and restricted erection
INNOVATIVE AESTHETICS ABOUT THE STEELWORK AND CLADDING:
- The Porte’ and main roof have intersecting curves on the main roof
- Gable sheeting girts reflect truss V forms with silver heat polycarbonate sidelights which create a chevron lit graphic inside in the day, and externally at
THE PROJECT TEAM CHALLENGES:
- Due to limited access to the site, being within a wooded suburban area adjacent to a swimming pool, the methodology of construction and erection required a team
- The Main Contractor further shortened the steel construction critical path by 3 months, necessitating close co-ordination between Architect, Engineer and Steel
It is considered that the integrated aesthetic form of the tubular section roof structure, exemplifies the use of steel construction in public facility buildings, in an urban environment.
STRUCTURAL STEELWORK | |
Completion date of steelwork | September 2017 |
Completion date of full project | February 2018 |
Tons of structural steel used | 46 tonnes |
Structural profiles used | Tubular, Hot and Cold Rolled |
SA content – if this is an export project | 100% |
CLADDING | |
Cladding profile/ type used | Colour Coated Saflok 700 |
Cladding area/ coverage and tonnage | 2650sqmeters, 16 tonnes |
Project Team
Project Team Role | Company |
Nominator | Young and Satharia |
Client/ Developer | DBN Girls High School Governing Body |
Architect | Neil Hayes-Hill Architect |
Quantity Surveyor | Edgecomb & Hayes-Hill |
Main Contractor | Nichol Projects (Pty) Ltd |
Steelwork Contractor | Ogilvie Engineering (Pty) Ltd |
Cladding Manufacturer | SAFINTRA |
Cladding Supplier | SAFINTRA |
Cladding Contractor | Four Seasons Roofing (Pty) Ltd |
If you were a part of this project, and your company details are incorrect or missing – please notify the SAISC so that the error can be corrected.