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Through the shaking table tests, the seismic performance of the bridge model with variable parameters was evaluated in terms of deck displacement, deck acceleration, vibrating frequency and damping ratio.
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Other response parameters of the system, such as deck displacement, bearing displacement and deck acceleration, are significantly larger in the cases of SRBs compared to those of HDRB.
Horizontal deck displacement measurements are separated into their two main components: the lateral displacement due to foundation rotation and due to the flexural deformation of the pier (δ col).
As the aspect ratio increases, the transverse deck displacement increases.
However, the deck displacement becomes excessively large when subjected to ground motion with unexpected characteristics.
Also, the transverse deck displacement becomes smaller from the bent location to the abutments for all aspect ratios.
Figures 11 and 12 present the displacement of the deck in the longitudinal and transverse directions (x and y) respectively.
During the loading cycle, with the increase of speed, the maximum vertical displacement of bridge deck pavement decreases.
This document describes an optimization problem of cable cross section of a cable stayed bridge considering constraints of cable stress and deck displacement.
However, implementing SMA wires into HDRBs has negligible effect and in some cases no effect on the pier displacement and peak deck acceleration.
Findings show that SMA wires can satisfactorily reduce the shear strain demand in LRBs and restrain the deck displacement by increasing the effective stiffness of elastomeric isolator.
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