The A03B-11 plot project in Block 384, Jiangwan Town, Shanghai, is recognized as a “2016 Science and Technology Project Plan Prefabricated Building Technology Demonstration Project” by the Ministry of Housing and Urban-Rural Development. The project is undertaken by Greenland Holdings Group Co., Ltd. in collaboration with Shanghai Zhongsen Architecture and Engineering Design Consultant Prefabricated Building Co., Ltd. Notably, this development marks Shanghai’s first prefabricated commercial complex.
Project Overview
Project Features
1) Division of Prefabricated Building Units
This project is the sole commercial complex within the plot, consisting of an irregular podium and three towers positioned on the east, middle, and west sides. Due to the structural complexity of the podium and the high standardization of some tower components, the prefabrication rate is relatively high, positively impacting the construction schedule.
Three partitioning schemes were developed. After two rounds of structural over-limit evaluation and PC special assessment, the two towers on the east and west sides above the ±0.00 elevation, along with their downward projection areas, were selected for prefabrication. This approach meets the required prefabrication rate and assembly area implementation ratio. Simultaneously, it avoids the large irregular podium structures, thereby enhancing construction efficiency, reducing complexity, and lowering costs.
2) Prefabricated Construction Method
Following various specialized evaluations and considering economic, technical, and scheduling factors, the first and second floors above the ±0.00 elevation were designated for cast-in-place construction. This decision avoids the production of non-standard components within the irregular podium and the challenges associated with complex reinforcement connections at the base. As a result, construction difficulty and costs are reduced.
Moreover, during the construction of the first and second floors, time was allocated for the manufacturing, processing, and transportation of upper prefabricated components. This sequencing enabled simultaneous operations, effectively shortening the overall construction timeline.
3) Weight of Prefabricated Components
All prefabricated components are designed to weigh under 5 tons. This weight limit simplifies lifting and transportation, thereby reducing tower crane costs.
Prefabricated column hoisting
Composite panel hoisting
Composite panel installation
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