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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-Cyclic Fatigue Characteristics of Hanging Bolts Used in Building Equipment
https://orcid.org/http://orcid.org/0000-0002-9645-7851
In the 2011 Great East Japan Earthquake, it has been reported that hanging bolts of building equipment are fractured around the connection and cause damage to equipment to lose its function. The low-cyclic fatigue characteristics of hanging bolts caused by cyclic deformation has been investigated in previous studies. However, effects of relatively small loading amplitude range on the fatigue characteristics of hanging bolts are not clear. In this study, we conducted cyclic loading test focusing on the low-cyclic fatigue characteristics of hanging bolts with deformation amplitude, suspension length, and nominal diameter as parameters and clarified the fundamental structural behavior. From this cyclic loading test, it was found that the experimental values of the elastic stiffness and yield strength of the hanging bolts at initial cycle were almost the same to the calculated one. Regarding the low-cyclic fatigue characteristics of the hanging bolts, the longer suspension length brought the greater number of cycles without differences of nominal diameter. In addition, it was found that when nominal diameter was different, the elastic stiffness and yield strength were varied according to mechanics, however the number of cycles were almost the same.
Low-Cyclic Fatigue Characteristics of Hanging Bolts Used in Building Equipment
https://orcid.org/http://orcid.org/0000-0002-9645-7851
In the 2011 Great East Japan Earthquake, it has been reported that hanging bolts of building equipment are fractured around the connection and cause damage to equipment to lose its function. The low-cyclic fatigue characteristics of hanging bolts caused by cyclic deformation has been investigated in previous studies. However, effects of relatively small loading amplitude range on the fatigue characteristics of hanging bolts are not clear. In this study, we conducted cyclic loading test focusing on the low-cyclic fatigue characteristics of hanging bolts with deformation amplitude, suspension length, and nominal diameter as parameters and clarified the fundamental structural behavior. From this cyclic loading test, it was found that the experimental values of the elastic stiffness and yield strength of the hanging bolts at initial cycle were almost the same to the calculated one. Regarding the low-cyclic fatigue characteristics of the hanging bolts, the longer suspension length brought the greater number of cycles without differences of nominal diameter. In addition, it was found that when nominal diameter was different, the elastic stiffness and yield strength were varied according to mechanics, however the number of cycles were almost the same.
Low-Cyclic Fatigue Characteristics of Hanging Bolts Used in Building Equipment
https://orcid.org/http://orcid.org/0000-0002-9645-7851
In the 2011 Great East Japan Earthquake, it has been reported that hanging bolts of building equipment are fractured around the connection and cause damage to equipment to lose its function. The low-cyclic fatigue characteristics of hanging bolts caused by cyclic deformation has been investigated in previous studies. However, effects of relatively small loading amplitude range on the fatigue characteristics of hanging bolts are not clear. In this study, we conducted cyclic loading test focusing on the low-cyclic fatigue characteristics of hanging bolts with deformation amplitude, suspension length, and nominal diameter as parameters and clarified the fundamental structural behavior. From this cyclic loading test, it was found that the experimental values of the elastic stiffness and yield strength of the hanging bolts at initial cycle were almost the same to the calculated one. Regarding the low-cyclic fatigue characteristics of the hanging bolts, the longer suspension length brought the greater number of cycles without differences of nominal diameter. In addition, it was found that when nominal diameter was different, the elastic stiffness and yield strength were varied according to mechanics, however the number of cycles were almost the same.
Low-Cyclic Fatigue Characteristics of Hanging Bolts Used in Building Equipment
Lecture Notes in Civil Engineering
Mazzolani, Federico M. (Herausgeber:in) / Dubina, Dan (Herausgeber:in) / Stratan, Aurel (Herausgeber:in) / Hirano, Ichiro (Autor:in) / Kurosawa, Miku (Autor:in) / Kishiki, Shoichi (Autor:in)
International Conference on the Behaviour of Steel Structures in Seismic Areas ; 2022 ; Timisoara, Romania
08.05.2022
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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