スプリットティを用いたボルト半鋼接の繰り返し弾塑性挙動と低サイクル疲労に関する実験研究

概要

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This paper presents a systematic test program to investigate the inelastic cyclic behavior of bolted T-stub connections. A total of 42 tests are summarized. The parameters studied include flange thickness, column bolt diameter, column bolt gage distance, edge-distance, column bolt pretension, and loading patterns. Two deformation modes under cyclic loading are categorized by whether the column bolt yields or not. Effects of various parameters on the performance such as stiffness, strength, ductility, and energy dissipation are reported. Deformation-based and energy-based low-cycle fatigue models combined with Manson-Coffm equation are discussed, and their characteristics and limitations compared. Miner's rules coupled with the two models are examined by employing various loading patterns. The energy-based method appeared to be a reasonably accurate method to predict low-cycle fatigue of the T-stub connections.
社団法人日本建築学会の論文
2002-11-30