Relation Between Input Energy and Equivalent Monotonic Response Curve
Conference proceedings article
ผู้เขียน/บรรณาธิการ
กลุ่มสาขาการวิจัยเชิงกลยุทธ์
รายละเอียดสำหรับงานพิมพ์
รายชื่อผู้แต่ง: Leangheng C., Doung P., Leelataviwat S.
ผู้เผยแพร่: Springer Science and Business Media Deutschland GmbH
ปีที่เผยแพร่ (ค.ศ.): 2023
Volume number: 236 LNCE
หน้าแรก: 87
หน้าสุดท้าย: 97
จำนวนหน้า: 11
ISBN: 9783031365614
นอก: 23662557
ภาษา: English-Great Britain (EN-GB)
บทคัดย่อ
This study investigates the relation between the input energy and the equivalent monotonic response curve. The relationship is represented by a parameter called the energy factor, which is defined as the ratio of the energy required to push the structure under monotonic loading up to the maximum displacement due to ground motion to the elastic input energy. Single-degree-of-freedom systems were analyzed under selected ground motions. The input energy and the maximum inelastic response were used to calculate the energy factor for each case. The results indicated that the obtained energy factor varied mainly according to the ductility level and were fairly constant except in a short period range. An expression was then derived to predict the energy factor as a function of period, strength, and ductility level. By using the energy factor, the ties between the structural strength, the maximum deformation, and input energy are established. The concept can then be used to design a structure, given the input energy, by calculating the required strength to limit the deformation within the selected target. Finally, the application of the energy factor in an energy-based plastic design of a structure is illustrated. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.
คำสำคัญ
energy-based plastic design, Energy factor, monotonic response
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