- Residential & Accommodation
Client
Location
Architect
Builder
Value
Completion
Services
- Civil Engineering, Facade Engineering, Structural Engineering
Gama Tower stands at 285.5 metres as an icon of the Jakarta skyline, and was recognised as the 14th tallest building in the world at the time of its completion. 
PROJECT OVERVIEW
Gama Tower is a 64-storey, 285.5-metre mixed-use tower in Jakarta, Indonesia, and at the time of completion in 2016 was the tallest building in Indonesia and ranked 14th tallest in the world. Developed by JO Wahana Nusantara and Bakrie Swasakti Utama and designed by SDA, the $250M tower was constructed by Samsung and Tatamulia Nusantara Indah. The building comprises The Westin Jakarta hotel occupying the upper levels with commanding city views, commercial and office space below, and a ballroom at podium level.
SCOPE OF WORK
TTW provided Structural, Civil, and Facade Engineering services for the project. Structurally, TTW devised a pile-less raft foundation system for the tower and developed innovative solutions to address wind tunnel demands and high-rise construction challenges including differential column shortening.
TTW’s Indonesia team designed the external stormwater system, including soak wells and soak ponds in accordance with authority requirements, and delivered pavement, external hardscape, and retaining wall designs aligned with the landscape design intent.
CHALLENGES
At over 285 metres, Gama Tower presented the full spectrum of high-rise engineering challenges. Wind tunnel demands required innovative structural responses, and managing differential column shortening across 64 storeys was a critical consideration in the structural design. The decision to adopt a pile-less raft foundation was a key engineering solution, requiring careful analysis to ensure adequate load distribution and performance for a tower of this height and scale.
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