4Yamaguchf, Eiki, Chaisomphob. Stress concentration and deflection of simply supported box girder including shear lag effect [J]. Structural Engineering and Mechanics, 2008, 28(2): 207-220.
5林同炎,Ned H.预应力混凝土结构设计[M].第3版.北京:中国铁道出版社,1983.
6Bonet J, Wood R D. Nonlinear continuum mechanics for finite element analysis [M]. New York: Cambridge University Press, 1997.
7Rendell R W, Ngai K L, Fong G R, Fee A F, Bankert R J. Nonlinear viscoelasticity and yield: Application of a coupling model [J]. Polymer Engineering and Science, 1987, 27(1): 2-15.
