The earthquake-resistant design code provision at the beginning in Japan required that structures resist seismic force produced by response acceleration. The design conce [...]

Viscous mass dampers with friction origin force restriction mechanism (force restricted viscous mass damper, hereinafter called FRVMD) are considered for base isolated st [...]

A weak-story in a multi-story building may cause excessive displacement during a severe ground motion. To prevent this effect, this study proposes an energy dissipation d [...]

The previous study have already proposed optimum response control method of 1-DOF system using linear viscous damper with rotational inertial mass and linear spring, and [...]

This paper discusses the characteristics of the dynamic response of a structure with simple semiactive control system. The control system consists of magnetorheological f [...]

The semi-active damping devices can vary their damping characteristics without large power source, and can improve seismic response of building. MR damper (magnetorheolog [...]

In developing countries of seismic area, many people have to live in traditional masonry houses of stones, bricks and concrete blocks. Though collapse of the houses is on [...]

To mitigate base displacement in structural seismic isolation for large input level earthquake while performing well for moderate input level earthquakes, variable oil da [...]