Cable-stayed bridges have gained much popularity owing to their esthetic appearance, efficient utilization of structural materials, and technical advantages. When the main span length becomes longer, more accurate analysis methods are required to predict the realistic behaviors of structures, especially in design of steel cable-stayed bridges where nonlinear behaviors such as structural material and geometric nonlinearities are considerable. This paper presents an innovative software, named as PAAP3D, for nonlinear inelastic analysis of steel cable-stayed bridges subjected to static and seismic loadings. The solver of the PAAP3D is developed using the FORTRAN programming language, while the pre- and post-processors of PAAP3D are written using C++ programming language with a user-friendly and easy-to-use interface. The pylons, girders, and cross-beams are modeled as plastic-hinge beam-column elements where P – Δ and P − δ effects, the initial geometric imperfection, and the gradual stiffness degradation are considered. The stay cables are modeled as catenary elements to capture the cable sag effect. The generalized displacement control method (GDC) is used to solve the static analysis, and a time-history dynamic analysis is employed for seismic analysis. Some examples of steel cable-stayed bridges subjected to both static and seismic loads are studied.


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    Title :

    Advanced Design Software for Steel Cable-Stayed Bridges Using Nonlinear Inelastic Analysis


    Additional title:

    Lecture Notes in Civil Engineering




    Publication date :

    2019-10-11


    Size :

    6 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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