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Erschienen in:
2022 | OriginalPaper | Buchkapitel
Full Plastic Strength of Circular Hollow Section Panel Zone with Large Aspect Ratio
verfasst von : Yosuke Ashida, Yuji Koetaka, Iathong Chan
Erschienen in: Proceedings of the 10th International Conference on Behaviour of Steel Structures in Seismic Areas
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Abstract
It is well known that panel zones at beam-column joints of steel moment resisting frames may yield under strong ground motion as well as beams and columns. It is also figured out that the effect of bending moment acting on panel zones cannot be ignored, however, there were few studies regarding this topic. Then, this paper aims to clarify the effect of aspect ratio on the behavior of circular hollow-section panel zones. In this paper, cyclic loading test and finite element analysis with single panel zone specimens were conducted with varying aspect ratios, width-thickness ratio, and axial force ratio of panel zones. Experimental and numerical results showed that the effect of the width-thickness ratio on the full plastic strength was quite small, while the full plastic strength decreased as the aspect ratio increased Moreover, the plastic deformation capacity of a circular hollow-sectional panel zone with a large aspect ratio decreased as the width-thickness ratio and axial force ratio increased.