CFRP sheet reinforced Zhoushan wharf

Project overview

Zhoushan laotangshan a wharf was built in 2007, after 5 years of operation, long-term fatigue and overload, its development will affect the safety operation. The pier is high piled beam slab structure by the Zhanqiao and the platform is composed of two parts, the wharf design berthing 80 thousand ton coastal freighter, however in the process of design a super ton ship docked in the dock, a beam was produced a few stress cracks in the long sea side end overload impact width nearly ranging from 2~4mm, and continue to carry out.

Under the control of cracks, through the communication and research with the design units, we decided to use the reinforcement measures of CFRP wrapping to limit the deformation of the structure and further strengthen the fracture structure, so as to ensure the bearing capacity and durability of the structure to meet the design and operation requirements.

Because the reinforced part of the jetty at lower beam, due to tidal influence the construction time is very limited, and the site can not set up the construction equipment, the use of functional requirements after reinforcement is not too much to change the structure dimensions, but also to meet and put into use after carrying the terminal's static loading dock and machine operation Department and dynamic load impact of ship dock well, considering the durability in the marine environment, we decided to reinforce the construction process of carbon fiber fabric.