Spatial
01. Structural Design

Foundation
Taipei 101 tower is built on 380 concrete piles, each 1.5 metres in diameter, sunk 80 metres into the ground.
To address the challenge of constructing a 21-meter-deep basement on a site with soft rock beneath layers of clay and soil, initially, a thick slurry wall was constructed to encircle both the tower and its base, extending deep enough to block groundwater and provide support for the excavation depth required.
Additionally, another slurry wall was specifically built around the tower footprint, reinforced with steel supports to ensure safe excavation to the necessary depth.
Source:
Binder, G. (2008). Taipei 101. Images Publishing.
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Structure
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The 101-story tower's structural system is mainly based on a mega frame with cross-shaped giant frames.
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The core comprises 16 box columns (grey column in figure) in four lines, which are generally braced between floors.
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Eight mega columns (red columns in figure) provide vertical support.
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The columns are filled with high-strength reinforced concrete to form a strong framework

Source:
Binder, G. (2008). Taipei 101. Images Publishing.

Square-cornered model .
‘sawtooth’ plans with two corners
‘sawtooth’ plans with four corners


Source:
Poon, D., Shieh, S. S., Joseph, L. M., & Chang, C. (2004, October). Structural design of Taipei 101, the world’s tallest building. In Proceedings of the CTBUH 2004 Seoul Conference, Seoul, Korea (pp. 271-278). sn.
Source:
Tamboli, Akbar, et al. "Tall buildings: sustainable design opportunities." Council on Tall Buildings and Urban Habitat, CTBUH 8 th World Conference, Dubai, March. 2008.
Taipei 101 cooperate structural design of incorporating “saw-tooth corners” into its perimeter design as exhibited in Figure.
Wind tunnel testing at RWDI, Guelph, Ontario, Canada was concluded and the result showed that these “saw-toothed corners”can dramatically reduce vortex shedding that generates wind sway. This, in turn, reduces the acceleration and inter-story drifts of the building.
02. Internal Design
Take Taipei 101 35F sky park as an example
