Building 31 was constructed as one of the wave-protective buildings in Gunkanjima. High waves and strong winds have been often acting on the building during typhoons. High waves induce direct wave pressures and indirect ground vibrations propagating from adjacent seawalls. Strong winds generate positive and negative wind pressures. Dynamic behaviors of building 31 during two typhoons in 2018 were recorded by vibration sensor network. The dynamic behaviors during typhoons are investigated through long-time rms responses and short-time impulsive actions.
