Title :
Design and analysis based energy dissipation for self-anchored cable-stayed suspension bridge based-on elastic-plastic theory
Author :
Feng, Miao ; Ping, Guan ; Weizhi, Zhu
Author_Institution :
Key Lab. for Prediction & Control on Complicated Struct. Syst. of Liaoning Province, Dalian Univ., Dalian, China
Abstract :
The fiber model of Dalian Bay Bridge is established with simulating plastic hinge by distribution hinge model, nonlinear time-history is analyzed by Midas/Civil based-on elastic-plastic theory. Compared of time-history results between elastic to elastic-plastic stage showed: the internal forces of structure are reduced mainly in bending moment and axial-force on tower root, because of dissipation of seismic energy inputting after into elastic-plastic stage, but longitudinal displacement increased on top of tower and middle span of beam due to the rotation of plastic hinge. After setting viscous dampers between beam and tower, longitudinal displacement of tower roof and beam has a more reduced significantly, but also reduced tower root bending moment and shearing.
Keywords :
beams (structures); bending; bridges (structures); elastoplasticity; hinges; shock absorbers; Dalian bay bridge; Midas/Civil; axial-force; beam; bending moment; distribution hinge model; elastic-plastic theory; energy dissipation; fiber model; longitudinal displacement; nonlinear time-history; plastic hinge; seismic energy; self-anchored cable-stayed suspension bridge; viscous damper; Analytical models; Bridges; Fasteners; Force; Plastics; Poles and towers; Shock absorbers; concrete; distributed hinge type; elastic-plastic; energy dissipation; fiber model; self-anchored cable-stayed suspension bridge; viscous damper;
Conference_Titel :
Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on
Conference_Location :
Lushan
Print_ISBN :
978-1-4577-0289-1
DOI :
10.1109/ICETCE.2011.5776354
