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Project Description
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This project involved the design of both an Office Tower and Hotel Tower with a six-story basement car park.
The sensitive stability of a pre-cast LRT concrete tube demanded a structural profile and construction procedure
for the car park that would result in minimum ground movement, both during construction and in the long term.
A reinforcement concrete diaphragm wall, strutted at all stages of excavation and construction by permanent
reinforced concrete floors, was considered to be most likely to attain this result. For the floor structure,
a flat slab with drop panel was chosen for reducing shear and negative bending stress around the columns.
The 51-story Office Tower is, from structural point of view, a wall-framed structure. Core wall and frames
interact horizontally, especially at the top, to produce a stiffer and stronger structure.
The typical floor structure is a 170 mm thick slab supported on 550 mm deep beams.
The 41-story Hotel Tower is a mixed structure. From Basement 6 to Level 9 the structure is wall-framed structure,
but from Level 9 to the Roof, the structure is a coupled shear wall structure.
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