Construction—APAC—Singapore—Commercial Buildings
2 level tall steel trusses once again served
to support the overhanging block which
cantilevers by 9.5m from 3 prestressed walls.
The top chords of the huge steel trusses were
connected to the walls via post-tensioned
beams. 16 75mm Ø DYWIDAG Bar Tendons
were used to prestress these beams.
Each of the 3 walls was prestressed using
10 vertical 75mm Ø DYWIDAG Bar Tendons.
The DYWIDAG Bar Tendons were only
installed from level 10 up to level 25.
Weighing 35.9kg/m, the very heavy
DYWIDAG Bar Tendons posed a challenge
during installation. The individual bars
weighing approximately 160kg had to be
hoisted into position by tower crane and
coupled at every 4.5m casting lift of the wall.
The total coupled length of each individual
bar tendon was approximately 80m.
As the DYWIDAG Prestressing Bars must
not be subjected to any bending, they had
to be installed t