EXPERIMENTAL STUDY ON DEEP‐COLUMN SUBJECT TO COMPRESSIVE AXIAL FORCE WITH ONE END CYCLIC BENDING MOMENT

ce/papers ◽  
2019 ◽  
Vol 3 (5-6) ◽  
pp. 203-212
Author(s):  
Shimpei Yoshioka ◽  
Atsushi Sato ◽  
Takeshi Onogi
Keyword(s):  
Experimental Study ◽  
Axial Force ◽  
Bending Moment ◽  
Cyclic Bending ◽  
Compressive Axial Force ◽  
Cyclic Bending Moment

Load Regime Diagram of a Pipe With Cyclically Plastic Bending

2002 ◽  
Author(s):  
Yanping Yao ◽  
Ming-Wan Lu
Keyword(s):  
Axial Force ◽  
Bending Moment ◽  
Boundary Curve ◽  
Plastic Behavior ◽  
Cyclic Bending ◽  
Elastic Plastic ◽  
Linear Elastic ◽  
Load Regime ◽  
Reversed Cyclic ◽  
Cyclic Bending Moment

The criteria of piping seismic design based on linear elastic analysis has been proved to be conservative, which is mainly because the influence of plastic deformation on piping dynamic response is neglected. In the present paper, a pipe under seismic excitation is simplified as an beam with tubular cross section subjected to steady axial force and fully reversed cyclic bending moment, and the elastic-plastic behavior of the pipe is studied. Various behavior of the pipe under different combinations of axial force and cyclic bending moment is discussed and the boundary curve equations between them are obtained. Also the load regime diagram for a pipe which is formed by the boundary curve equations in the loading plane is given, from which the elastic-plastic behavior of the pipe can be determined directly.

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