Nonlinear three dimensional finite element model for cable-stayed bridge decks | |
| Author | Ngu Chi Vi, David |
| Call Number | AIT Thesis no.ST-87-21 |
| Subject(s) | Finite element method Bridges, Cable-stayed |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | A geometrically nonlinear three dimensional finite element model is developed in this study for beam with thin-walled cross-sections with consideration of the combined flexural and torsional problems and effects of warping restraint condition. Total Lagrange formulation is used for the 6-node degenerated model from three dimensional field equations justified by reasonable assumptions . The equation of motion is discretized by the Galerkin's weighted residual method followed by a linearization suitable for Newton-Raphson and modified Newton-Raphson iteration techniques. Various examples of simple structures are presented to illustrate the effectiveness of the derived element in practical analysis of thin-walled members. Finally, two different three dimensional cable-stayed bridges are analyzed. One of two-span for linear behaviour verification and another of seven-span for nonlinear analysis. A developed linear and nonlinear truss element together with a common linear beam element are modified for the illustration of these bridges. Special node arrangement is discussed. |
| Year | 1987 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Worsak Kanok-Nukulchai |
| Examination Committee(s) | Karasudhi, Pisidhi ;Hasegawa Akio |
| Scholarship Donor(s) | Japan-AIT Human Resources Development Fund |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1987 |