New Biological Oxidation ( Biox ) Zimbabwe
BEST EXPORT PROJECT
Biological oxidation (‘ Biox ’) is a technology that ensures the optimal processing of high sulphur gold ore , thereby increasing the achievable gold recovery . This technically challenging structural framing project entailed detailing , fabricating and constructing a gold processing Biox plant . Structural framing was relatively simplistic with the primary objective to provide access to the various areas of the Biox plant as well as piping support system . Since 85 % of piping was HDPE , a wide variety of additional structural supports were needed to compliment this fact . Having to incorporate these supports into the other structures whilst keeping weights to a minimum and ensuring an aesthetically pleasing final plant layout was challenging .
The tanks in particular are of a specialised steel structure ( SAF2304 ) to combat highly corrosive plant environment , as needed to achieve the 20 year plan life requirement . The Biox tanks ( 11.5m diameter x 13m high ) were made from 5mm plate to stringent design criteria . Steel material efficiency in terms of structural and platework weights were kept to a minimum to achieve very cost effective project for the end user , Riozim . The steelwork was pointed with and industrial three coat paint specification to withstand the grueling exposure to elements and operational requirements .
Client : Riozim Contractors : Betterect ; Metso ; Outotec ; ADP Marine & Modular ; Lycopodium Group ; Allied Steelrode ; Macsteel
House Vingos
RESIDENTIAL | BEST PROJECT GAUTENG
This home doesn ’ t prescribe to any preconceived ideas of what a home should be - in fact it turns all those preconceived ideas on their head . The combined forms , shapes and materiality of this project are unique . The decision to use a steel portal frame and then go one step further and expose the steel frame home was an unusual approach but one which delivers a striking result . The steel , combined with all the other elements but specifically the natural oak timber , deliver a statement piece of architecture but also a wonderful family home .
The steel portal frame ‘ skeleton ’ rotated at 77 º delivers a powerful form externally and very interesting volumes internally whilst delivering effective solar control screening on the north side and permitting soft high level natural light in on the south side . The result is
a very unique and interesting architectural form , which also enables very effective sun shading on one side and permits beautiful , soft natural light from the other side . This demonstrates how the creative application of the structural system can also result in very successful passive solar radiation solution and striking architectural gesture . The innovative use of steel , combined with all the other elements of construction , delivers a statement piece of architecture and a warm , welcoming home .
Architect : Drew Architects Steel Manufacturer : Safal Steel Roofing and Cladding Profiler : Safintra Structural Steel Contractor : Viva Engineering Painting : Industrial Painting Services
Steel Awards 97