Congratulations! The clear overall winner of the Cadex SA Tekla Structures Sub-Saharan Africa Regional BIM Competition for 2011 is the Steel Mining Headgear submitted by Cadhouse.

The joint runners up are the Medupi Workshop submitted by Mondo Cané and the Trekkopje Precipitation Building submitted by the Cosira Group.

The Sishen Iron Ore Beneficiation Plant submitted by Kumba received the highest number of votes from visitors to the competition's webpage.

Innovative use of a 3D BIM model to manage the facility and the equipment as well as to verify the “As built” status of the project. Modelled from 2D drawings of the Iron Ore Expansion Project the Tekla Structures BIM model allows the management and planning of the removal of equipment, positioning of new crawl beams and maintenance and planning of new services and pipe routes.
The model incorporates 2600 tonnes of structural steelwork for a building of approximately 3500m2 on plan.

A complex processing building forming part of a fast track project split into area priorities and detailed, issued, fabricated and erected accordingly. Tekla Structures functionality helped the tracking of client revisions and staged issues to the workshops. Interoperability between Tekla Structures, Magellan (Cosira's in-house material control and tracking system) Fabtrol and other tools like Tekla’s web viewers and Tekla BIMsight helped ensure this structure was detailed, fabricated, delivered and erected effectively.
Approximately 315 tonnes of structural steelwork – excluding the hand railing, grating etc.

This headgear towers 87m above the Goldfields South Deep Mine, weighs over 1900 tonnes & uses more than 5000 torqued bolts. Erected over an existing operational headgear and shaft the main framework is hollow section boxes welded up out of 45mm plate. The plates are welded together with complete joint penetration welds and each 10m section required 2 km of pre-heated, submerged arc welding runs. The headgear adds 195000 tonnes/month rock hoisting capacity to the mine.
The former title for the world’s highest structural steel headgear at 81m was held by the Konkola Copper Mine in Zambia followed closely by an 81m tall headgear at Shaft 17 Impala Platinum near Rustenburg South Africa.

A characteristic of this project in Botswana is collaboration using BIM models at nearly every stage of the project by nearly all disciplines. BIM tools helped resolve problems and identify solutions by a geographically dispersed project team. A proactive approach and the use of BIM helped minimise delays and keep the project on track.
The model of the expansive shopping centre has approximately 1470 tonnes of structural steelwork.

An interesting and challenging overhead tubular gantry for an open toll system forming part of a extensive freeway improvement project. The gantries allow traffic to flow freely while collecting tolls electronically.
Tekla Structures was used to help solve design and geometric issues on the structures. The interoperability and BIM features of Tekla Structures helped ensure open communication between the project team and the client ensuring all issues were successfully ironed out.

A petrochemical processing building. The project team benefitted from Tekla Structures ability to rapidly deal with changes and client revisions and to control the staged issue of information to the workshop and site. Magellan, Cosira’s in-house material control system, linked to Tekla Structures and Fabtrol enabled a high degree of project control and tracking at all stages of the project. High levels of interoperability and BIM processes allowed everyone access to accurate up to date information at all stages from the in-house detailing office, the workshop, the material bay, through the lay-down area on site to erection. Cosira uses the Tekla Structures model from project inception through to site erection improving management information and control and project delivery. Approximately 200 tonnes of structural steelwork – excluding the hand railing, grating etc.

The arch canopy forms part of a larger road toll project in Leandra, Trichardt and Ermelo in Mpumalanga, South Africa. The complex galvanised canopy structure is characterised by the circular hollow sections and fastening of the sheeting to the underside of the purlins on the curved roof. A collaboration project between design engineers from two firms the project consisted of a number of toll plaza canopies, off-ramp canopies, high lighting masts spread out over a number of construction sites.

Part of a demanding fast track phased mining project with strictly scheduled erection dates in a remote mine in Namibia. The Tekla Structures 3D model was extensively used at all stages including client approval. Magellan, Cosira’s in-house material control system, linked to Tekla Structures and Fabtrol enabled a high degree of project control and tracking at all stages of the project. The project team benefitted from Tekla Structures ability to rapidly deal with changes, client revisions and to control the staged issue of information to the workshop. Approximately 690 tonnes of structural steelwork – excluding the hand railing, grating etc.

The Ash Dump Tripper Car is part of the emergency ash dump equipment at the Medupi Power Station. Tekla Structures was used to model the complex structure to produce the fabrication drawings and to manage the fabrication and erection of the structure. The mass of structural steelwork in the model is approximately 45 tonnes.

The workshop structures are part of the Medupi Power Station Project. The workshops with EOT cranes and an uncharacteristic stepped barrel vault roof supported by heavy trusses with curved top chords was successfully modelled with Tekla Structures which was also used successfully to detail all the required components of the structure. The Tekla Structures model was used from conceptual design, through design and fabrication to erection. The model consists of over 37000 pieces of steelwork with an approximate mass of 900 tonnes.

A de-watering building forming part of the Kusile Power Station Project. A fast track projects with extensive client revisions and modifications. Tekla Structures helped reduce the impact of client revisions and modifications. Magellan, Cosira’s in-house material control system, linked to Tekla Structures tracked items through the workshop to the lay down areas on site – and provided all parties with that up to date information at every stage. Cosira uses the Tekla Structures model from project inception through to site erection improving management information and control and project delivery. Approximately 650 tonnes of structural steelwork – excluding the hand railing, grating etc.

Another interesting and challenging overhead tubular gantry for an open toll system forming part of an extensive freeway improvement project. The gantries allow traffic to flow freely while collecting tolls electronically. This gantry has curved raked back tubular towers mimicking a nearby bridge.
Tekla Structures was again used to help solve design and geometric issues on the structures. The interoperability and BIM features of Tekla Structures helped ensure open communication between the project team and the client ensuring all issues were successfully ironed out.

A petrochemical processing building. The project team benefitted from Tekla Structures interoperability. Magellan, Cosira’s in-house material control system, again linked to Tekla Structures and Fabtrol enabled a high degree of project control and tracking at all stages of the project. High levels of interoperability and BIM processes allowed everyone access to accurate up to date information at all stages of the project. Cosira uses the Tekla Structures model from project inception through to site erection improving management information and control and project delivery. Approximately 180 tonnes of structural steelwork – excluding the hand railing, grating etc.

Part of a demanding fast track phased mining project with strictly scheduled erection dates in a remote mine in Namibia. The Tekla Structures 3D model was extensively used at all stages including client approval. Magellan, Cosira’s in-house material control system, linked to Tekla Structures and Fabtrol enabled a high degree of project control and tracking at all stages of the project. The project team benefitted from Tekla Structures ability to rapidly deal with changes, client revisions and to control the staged issue of information to the workshop. Approximately 690 tonnes of structural steelwork – excluding the hand railing, grating etc.

A 100m high square in plan tapered cell phone mast constructed from angles. Tekla Structures was used throughout the project to facilitate the construction of this challenging structure with a mass of approximately 39 tonnes.

A processing building forming part of the Kusile Power Station Project. A fast track projects with extensive client revisions and modifications. Tekla Structures helped reduce the impact of client revisions and modifications. Magellan, Cosira’s in-house material control system, linked to Tekla Structures tracked items through the workshop to the lay down areas on site – and provided all parties with that up to date information at every stage. Cosira uses the Tekla Structures model from project inception through to site erection improving management information and control and project delivery. Approximately 650 tonnes of structural steelwork - excluding the hand railing, grating etc.

A pleasing structural form on top of an existing building at the University of Pretoria that is highly visible to passing traffic. The structure is carefully modelled to facilitate the fabrication, erection of a structure that at first glance looks simple but reveals more challenges on a closer inspection.
The model is approximately 20 tonnes of architectural structural steelwork excluding glass covering a plan area of approximately 550m2.

The high lighting masts were part of a national road toll plaza project in Mpumalanga. Tekla Structures was used to detail these structures which weigh about 2 tonnes. Specially designed jigs were used to speed up manufacture and to improve the outcome.