性能設計に基づくクレーン走行ばりの疲労寿命推定に関する研究

概要

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Performance based design so called Vision 2000 was presented as new seismic design code of building by SEAOC in 1995. The characteristics of this method is that the performance of structure may be described by performance matrix developed using seismic design level and performance level of structures. In this paper, life span of welded crane runway girders based on performance based design was developed. And this paper showed that (1) the performance matrix was proposed by considering fatigue crack length at edge of rib near the top flange and / or at edge of gusset plate in the lower flange, and 3 damage levels correspond to the performance matrix, (2) when the analytical fatigue probability was over 80%, existing crane runway girders was damaged, and (3) allowable fatigue probability for high importance crane was established about 50%, the values for low importance crane was established about 30%.
社団法人日本建築学会の論文
2000-10-30