Hits:

Indexed by:期刊论文

Date of Publication:2010-01-30

Journal:STRUCTURAL ENGINEERING AND MECHANICS

Included Journals:SCIE、EI、Scopus

Volume:34

Issue:2

Page Number:281-284

ISSN No.:1225-4568

Abstract:The dimensionless form of the deflection theory of self-anchored suspension bridges was derived, and a concept of composite axial stiffness coefficient of stiffening girders was introduced. This paper derived dimensionless equations of the deflection theory of self-anchored suspension bridges and redefined λ2so that it can include the effect caused by the axial compression of the stiffening girder. And the composite axial deformation stiffness was introduced into the dimensionless parameters of self-anchored suspension bridges. It can be seen α2is larger than that of earth anchored suspension bridges and λ2smaller. Moreover α2ranges from 0.06 to 0.80 and λ2from 180 to 800 for self-anchored suspension bridges with a small span, when the vertical stiffness of the deck has a great influence on the displacement and bending moment.