Performance Monitoring of Extreme Large-Diameter Prestressed Concrete Cylinder Pipe with Distributed Fiber Optic Sensors

2016 ◽  
Author(s):  
Xin Feng ◽  
Wenjing Wu ◽  
Sheng Zhong ◽  
Tong Zhu ◽  
Jing Zhou
Keyword(s):  
Prestressed Concrete ◽  
Performance Monitoring ◽  
Fiber Optic ◽  
Large Diameter ◽  
Fiber Optic Sensors ◽  
Concrete Cylinder ◽  
Prestressed Concrete Cylinder Pipe

Mechanical Capacity Analysis of Large Diameter Prestressed Concrete Cylinder Pipe (PCCP)

2012 ◽  
Vol 166-169 ◽  
pp. 3214-3219
Author(s):  
Yu Liang Wang ◽  
Yong Qing Bi ◽  
Xiao Jie Zhou
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Prestressed Concrete ◽  
Design Method ◽  
Large Diameter ◽  
Elastic Plane ◽  
Element Analysis ◽  
Crack Control ◽  
Concrete Cylinder ◽  
Prestressed Concrete Cylinder Pipe

Prestressed concrete cylinder pipe(PCCP) has been applied to oil, water conservancy and hydropower engineering and other fields as a kind of high quality composite pipe. Because of its complicated structure and work condition, mechanical behavior of PCCP is not uniform. In this paper, the mechanical model is established in PCCP working stage based on the elastic plane strain theory of axisymmetric multilayer cylinders and the mechanism of the ring-like strands action. Then the design method of prestressing is put forward according to the aim at the crack control. The stress is analyzed with finite-element analysis in the condition of different pressure, and also the method is amended compared with the finite-element analysis. It is indicated that the design method of prestressing is reasonable compared with specification of both domestic and international.

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