福井工業大学研究紀要 Memoirs of Fukui University of Technology (41) 319-326 2011年
At snowy areas in winter, there is a case that isolated buildings with around the snow cannot move horizontally. The purpose of this paper is to analyze the performance of isolated buildings considering snow cover and to consider the influences of snow cover at snowy areas of isolated buildings when huge earthquakes happen. The maximum response displacement in a seismic layer was stored in a general clearance or less within the range of this analysis considering the rigidity by snow cover around seismic building surroundings of winter at a huge earthquake.
In the case of H-shaped section bracing, the flexural buckling strength can be improved by increasing the cross section over the middle portion. For example, the increase in sections is accomplished by welding additional plates. The compression tests in inelastic ranges were conducted on the pin-ended columns reinforced H-shaped section by welding plates. The buckling behavior and the mode are examined for the members having a variety of proportion. It is obtained that the overall flexural buckling does not appear in the member having long end portions of H-shaped section and the corresponding buckling strength can be larger than the column curve of the design standard for steel structures.
This experimental study is planed to clarify the inelastic behavior and the failure characteristics of the eccentric web bolted beam joints. The cyclic loading tests were conducted on eleven full scale cantilever-type beams having a web bolted beam joint. The test parameters are the eccentricity of the joint, the magnitude of the hole clearance and the thickness of the web plate. The rotation stiffness, the slip strength, the yield strength, the skeleton curve and the hysteresis loop in the joint behavior are discussed. And then FEM analyses are examined to study elastic behavior.