振动与冲击
振動與遲擊
진동여충격
JOURNAL OF VIBRATION AND SHOCK
2014年
21期
96-101
,共6页
金属阻尼器%横向抗震需求%桥梁横向%位移能力%滞回耗能
金屬阻尼器%橫嚮抗震需求%橋樑橫嚮%位移能力%滯迴耗能
금속조니기%횡향항진수구%교량횡향%위이능력%체회모능
metallic damper%transverse aseismic demand%transverse direction of bridge%displacement capacity%hysteretic energy-dissipation
基于桥梁对横向金属阻尼器的抗震性能需求,在现有钢阻尼器研究成果的基础上,提出了一种适用于桥梁横向的新型金属阻尼器。然后阐明其力学性能,并提出了金属阻尼器的优化设计方法。最后,制作金属阻尼器试件进行了拟静力试验。研究结果表明,新型金属阻尼器具有很好的滞回耗能特性,滞回模型可采用等效双线性模型,同时具有很大的位移能力(漂移率大于50%),并且能够很好地适应地震过程中复杂的接触条件,不同三角形钢板具有很好的同步性。
基于橋樑對橫嚮金屬阻尼器的抗震性能需求,在現有鋼阻尼器研究成果的基礎上,提齣瞭一種適用于橋樑橫嚮的新型金屬阻尼器。然後闡明其力學性能,併提齣瞭金屬阻尼器的優化設計方法。最後,製作金屬阻尼器試件進行瞭擬靜力試驗。研究結果錶明,新型金屬阻尼器具有很好的滯迴耗能特性,滯迴模型可採用等效雙線性模型,同時具有很大的位移能力(漂移率大于50%),併且能夠很好地適應地震過程中複雜的接觸條件,不同三角形鋼闆具有很好的同步性。
기우교량대횡향금속조니기적항진성능수구,재현유강조니기연구성과적기출상,제출료일충괄용우교량횡향적신형금속조니기。연후천명기역학성능,병제출료금속조니기적우화설계방법。최후,제작금속조니기시건진행료의정력시험。연구결과표명,신형금속조니기구유흔호적체회모능특성,체회모형가채용등효쌍선성모형,동시구유흔대적위이능력(표이솔대우50%),병차능구흔호지괄응지진과정중복잡적접촉조건,불동삼각형강판구유흔호적동보성。
Based on aseismic performance demand of a bridge in transverse direction and current study results of metallic damper,a new type of metallic damper was proposed.Its mechanical performance was presented firstly and then an optimization design method for metallic damper was introduced.Finally,a quasi-static test was carried out on two samples of designed metallic dampers.The results showed that this new type of metallic damper possesses a good property of hysteretic energy-dissipation,its hysteretic model can adopt an equivalent bilinear model;moreover,the metallic damper has a large displacement capacity (drift ratio is larger than 50%)and it can adapt to the complex contact condition during ground motion;in addition,different triangular steel plates exhibit a perfect synchronism substantially.