Spectacular Architecture with Post-Tensioning Systems

The current construction boom in Sri Lanka has led to wide spread usage of post-tensioning systems in high rise buildings because these systems make it possible to build extraordinary and seismically resistant designs with long cantilever spans.

DYWIDAG Post-Tensioning Systems were used in the Clearpoint Tower, which will be the tallest vertical garden in Asia after its completion. The use of post-tensioning systems made it possible to build cantilever swimming pools and balconies in the 46 level high building that is being constructed in the Colombo district of Rajagiriya. The tower includes 5m cantilever balconies surrounding the entire building that required a high load-bearing capacity in order to accommodate the loads of the planned plantings. The tower also features 10 swimming pools extending in 5.1m cantilevers.

Utracon supplied and installed 74t of DYWIDAG Strand Post-Tensioning Tendons in the cantilever beams, flat slabs and walls.The stressed beams enabled the construction of flat girders so that each level has the same floor to floor clear height.

In the cantilever swimming pool slabs, Utracon installed and stressed 30 Type 4-0.6" DYWIDAG Strand Tendons with FA Flat Anchorages. In the cantilever balconies, a total of 328 Type 5-0.6" DYWIDAG Strand Tendons including FA Flat Anchorages and 716 Type 7-0.6" DYWIDAG Strand Tendons including MA Multiplane Anchorages were installed and stressed.

The General Contractor was very satisfied both with the DYWIDAG Post-Tensioning Systems that made it possible to realize the extraordinary architecture of the Clearpoint Tower and with the competent technical support provided by DSI’s licensee Utracon.

Designsupplyinstallationtechnical supportsupervision

Utracon Overseas Pte Ltd., Singapore

Maga Engineering (Pvt) Ltd, Sri Lanka