Study Of The Nonlinear Behavior Of The Prestressed Concrete Girders
By A Neural Network
Author(s)
W. Yabuki, T. Mazda, H. Otsuka
Abstract
Study of the nonlinear behavior of prestressed
concrete girders by a neural network
W.Yabuki', T. Mazda' & H.Otsuka'
^Graduate School of Civil Engineering, Kyusyu University, Japan
Abstract
For the performance design of a bridge, improvement of the hysteresis model of
prestressed concrete (PC) members is necessary in order to carry out checking and
design in considering the superstructure nonlinearity. However, new functions
and parameters must be investigated to appropriately express features of the PC
superstructure hysteresis loop, for example 'the origin directionality by the prestress'
and 'the asymmetry of the configuration of the strands', therefore, the modeling is
very complicated. Then, it was shown that nonlinear hysteretic behavior of a PC
member could be simply modeled using the ability of a neural network to approximate
function in this study. The cyclic loading test using 1/8 test specimens of the
superstructure of an actual bridge was conducted to acquire the data fo
Keywords
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