Tomorrow Square

Tomorrow Square (simplified; traditional; pinyin: Míngtiān Guǎngchǎng) is the twelfth-tallest building in Shanghai, China. It is located in Huangpu District, Puxi, close to People's Square. It is about 285 m (934 ft) tall and has 55 floors. This multi-purpose building contains a 342-room JW Marriott hotel, and 255 executive apartment units. The base includes a conference center, shopping center, and subway access. It was completed on 1 October 2003. The building holds the record for the highest library in the world located at one of its highest floors. Architecturally, Tomorrow Square is made up of two prisms, the second which is offset diagonally from the first, marking the transition from the apartment section to the hotel. The top terminates in a peak composed of four triangles. To make the exterior vertical support system work, engineers chose flat slabs for the hotel floors and beam and slab construction for the office floors. A combination of shear walls and frame action stabilizes the slender tower laterally against wind and earthquake forces. The foundations are 80-meter (260 ft)-long bored piles supporting a column mat.

Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).