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Shanghai Tower

Monolithic pouring of the foundation slab of the 632 m high tower Jian Gong, Weijiu Cui, Yong Yuan - 27 juni 2017

The Shanghai Tower, a 632 m high building, is the highest one in China and the second highest in the world. The foundation raft of high-rise buildings is usually a huge mat with cast-in-place mass concrete. It is a structural member that transfers loads from the building to the foundation base. To keep the integrity of a massive raft is a key issue both in design and construction phase. The key point to obtain a monolithic foundation raft is via continuous pouring of concrete without providing construction joints. This would definitely invoke a problem on how to mitigate hydration heat accumulated in mass concrete during pouring of concrete. Preventing thermal cracks is critical for large concrete members and this project presentation shows how is dealt with this issue in the Shanghai Tower foundation.

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