oa Civil Engineering = Siviele Ingenieurswese - KZN pedestrian bridge a first in Africa
The Mkomaas River Pedestrian Bridge is the only prestressed concrete ribbon bridge in Africa. Its main span of 150 m equals the world record for this type of bridge. The bridge was constructed from concrete elements suspended from cables tensioned between abutments, which were then stressed along the length of the bridge by tensioning a second set of cables placed in ducts through the elements. Compression stresses induced in this way compensate for tensile stresses resulting from live loads on the structure. The project earned a commendation in the category Technical Excellence
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