Abstract
The hub city complex project of Chengdu railway south station is a large multi-function complex. The plane size of the two way maximum structure is 220m*146m, the main body of the structure is super long structure and the crack control is strictly required. This project uses the cast-in-situ unbonded prestressed concrete two-way ribbed floor system in the roof with high crack resistance, which greatly facilitates the construction, reduces the cost of the project and shortens the time limit. This article will introduce related contents of the project design for designers.
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