Construction World February 2016

PROJECT PROFILE

STRIKING TOWERS in Maputo By Tim Smith, contract manager.

The Horizon project in Maputo comprises a 19 storey apartment tower and a 15 storey office tower that is positioned above a four floor mixed use podium.

a double boarding formwork design. Special ‘shoes’ were designed to position the precast units onto so as maintain the line and level during construction of the decks. For the manufacture of the precast units, SS Construções employed the services of SPE (Specialised Precast Elements) in Gauteng. Similarly, the four fire escape stairwells were built with precast stairs and transported to Maputo by road. The use of the precast concrete elements played a significant role in the success of the project and provided the client with an exceptionally high finish that will last for many decades. The 34 000 m 3 of concrete cast on the project was largely batched on site with all 75 000 m 2 of slabs pumped from the batch plant via a static pump. Health and safety The client’s project safety specification is based on the South African construction regu- lations. Suitable people to fulfill the roles of all the required safety related appointments and functions were trained in-house to meet

ith the main contract value of USD90-million, the contract had to be built in 24 months. To meet the very tight programme,

the office tower with its curved shape as well as a double conical shape in elevation. The concrete balustrades interface neatly with the curtain wall system while each floor is unique. The apartment tower appears to mimic the rippling shape of water with the clean lines of the concrete structure enclosed with an

SS Construções opted to precast the curved shaped concrete balustrades and cast them into the edge of the in-situ coffer slabs. The foundation design, consisting of 534 continuous flight auger piles, were designed and installed by the Stefanutti Stocks Geotechnical team, and was completed in six weeks. Design The striking design of the two towers features

aluminium and glass façade system. Construction innovation technology

The two tower cores, consisting of five lift shafts (each) were constructed with the use of a hydraulic climbing shutter system, the first of its kind to be used in Mozambique. The slabs design employed the use of coffers and

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CONSTRUCTION WORLD FEBRUARY 2016