This paper investigates a seismic retrofit technique that allows bridge steel truss piers to uplift and rock on their foundation. Displacement-based passive energy dissipation devices buckling-restrained braces, or BRBs are implemented at the uplifting location to control the rocking response while providing additional energy dissipation. The hysteretic behavior of the controlled rocking system...

To ensure the safety of bridges during horizontal rotation, we propose a method through which it is possible to evaluate stability structures in real time by measuring vibration acceleration rotating structure. First, characteristics collected rotation typical high-speed railway bridge were compared with results finite element analysis. Second, analytic formula calculate ratio and pier-bottom-s...

The problemof the stability of a liquid bridge stretched between parallel plateswith awetting contact angle of 90◦ is revisited. A closed form expression is derived for the height of the bridge, in terms of its volume, within which a cylindrical and various types of unduloidal equilibrium configurations can exist. For a given volume of the liquid and specified height of the bridge, the lateral ...

Shake table testing of a 1/5 scale model of a slender bridge steel truss pier that uses a controlled rocking approach as a means of seismic protection was conducted. The controlled rocking approach allows the pier to uplift from its base while passive energy dissipation devices steel yielding devices or fluid viscous dampers are implemented across the uplifting location to control the response....