合肥工业大学学报(自然科学版)
閤肥工業大學學報(自然科學版)
합비공업대학학보(자연과학판)
JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE)
2013年
12期
1472-1476
,共5页
基于能量设计方法%循环数%位移延性系数%强度折减系数%等效地震影响系数
基于能量設計方法%循環數%位移延性繫數%彊度摺減繫數%等效地震影響繫數
기우능량설계방법%순배수%위이연성계수%강도절감계수%등효지진영향계수
energy-based design methodology%number of cycles%displacement ductility coefficient%strength reduction coefficient%equivalent seismic effect coefficient
文章利用滞回耗能通过等效循环数等表达的公式,得到了反映不同强度折减系数下的体系滞回耗能公式,通过 Eh/EI 比谱表达式将滞回耗能转化为输入能表达,根据输入能量谱求出等效弹性反应加速度;根据位移延性系数确定相应的强度折减系数,然后将等效弹性反应加速度折算为与强度折减系数对应的等效地震影响系数,按现行规范进行小震下的强度计算;通过算例说明了该方法的设计步骤及其可行性。
文章利用滯迴耗能通過等效循環數等錶達的公式,得到瞭反映不同彊度摺減繫數下的體繫滯迴耗能公式,通過 Eh/EI 比譜錶達式將滯迴耗能轉化為輸入能錶達,根據輸入能量譜求齣等效彈性反應加速度;根據位移延性繫數確定相應的彊度摺減繫數,然後將等效彈性反應加速度摺算為與彊度摺減繫數對應的等效地震影響繫數,按現行規範進行小震下的彊度計算;通過算例說明瞭該方法的設計步驟及其可行性。
문장이용체회모능통과등효순배수등표체적공식,득도료반영불동강도절감계수하적체계체회모능공식,통과 Eh/EI 비보표체식장체회모능전화위수입능표체,근거수입능량보구출등효탄성반응가속도;근거위이연성계수학정상응적강도절감계수,연후장등효탄성반응가속도절산위여강도절감계수대응적등효지진영향계수,안현행규범진행소진하적강도계산;통과산례설명료해방법적설계보취급기가행성。
Firstly ,using the relationship between hysteretic dissipated energy and the number of cycles etc .,the value of system hysteretic dissipated energy under different strength reduction coefficient can be got .The hysteresis energy expression can be transformed into the input energy expression by using Eh/EI ratio spectrum ,and the equivalent elastic acceleration is calculated according to the input energy spectrum .Secondly ,the strength reduction coefficient is determined from the displacement ductility coefficient ,and the equivalent seismic effect coefficient corresponding to strength reduction coefficient is transformed from the equivalent acceleration .Then the strength calculation is conducted according to the current standard under minor earthquakes .Finally ,the feasibility of the methodology is verified through two examples .