The characteristics of a welding joint greatly influence seismic performance in steel structure buildings. Welding defects are well known to reduce the strength capacity [...]

In Japan, huge earthquakes such as the Tokyo inland earthquake and the Tokai-Tonankai-Nankai earthquake are predicted to occur in the near future. For earthquake-induced [...]

The welding groove angle and is an important factor that affects the weld quality when welding steel members. Currently, a welding groove angle of 35° is normally used b [...]

"Coupled vibration control structures" is a method for reducing earthquake responses by connecting buildings with different periods using dampers. In this paper, two sing [...]

There are two possible cases of behaviors of multistory frames after the vertical collapse of one story, where the collapse occurs due to an event such as a fire, an exp [...]

When buildings are subjected to long-period ground motions, the number of cycles of overloading can be of several orders, leading to the formation of plastic zones. The e [...]