The Roof Top Upgrade Reinforcement Reconstruction

Engineering Overview: Hangzhou Huihe City is located in Xinfeng Road, Jianggan District, Hangzhou, Zhejiang. It belongs to the frame structure of the skirt room, grass planting roof, 3 underground floor and 5 floors above ground, and the above floor is 4.95m. The building area is about 19040 square meters.

Due to business functions, it is necessary to transform the 5th floor of the city into a theaters with a layer of 7.5m, with a local layer of 12.5m. Therefore, the planting roofing roof requires an overall increase of 2.55m. The overall top rise area is 2380 square meters, and the weighing is 48000kn. At the same time, 8 frame columns need to be removed. Of course

In order to ensure safety and engineering quality, Hangzhou Huihe City uses PLC synchronous hydraulic top -lifting technology to synchronize the top rise of 2.55m on the 25M roof (the top -to -seat flat deviation and high -range deviation are ≤5㎜), and then the overall replacement and reinforcement of the main structure is to remove the 8 frame columns to expand the large space.

Overall analysis and calculations have been used to ensure the safety, seismic and durability of the structure.

Factors of the design of the scheme:

1. During the uplift process, we should consider and try to eliminate the adverse effects of the unbalanced or basic settlement of the top lift on the structure and the uplifting.

2. Due to the uneven quality of the upper structure, in order to prevent the translation, reversal, and inclined in the top upgrade, it is necessary to consider that the focus of the house's center of gravity is overlap.

3. In the top upgrade movement, the center of gravity of the house increases, and the stability of the support system is also the core issue of the design of the solution.

Reinforcement process

In the process of reinforcement, the Shanghai Horse irrigating glue, sticky steel, carbon fiber cloth, carbon fiber base glue, repairing glue, impregnating glue, and planting glue.

The reinforced Hangzhou Huihe City has a new look, which largely meets the current needs of the current stage.