安徽理工大学学报(自然科学版)
安徽理工大學學報(自然科學版)
안휘리공대학학보(자연과학판)
JOURNAL OF ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY(NATURAL SCIENCE)
2014年
3期
1-5
,共5页
能量耗散%金属阻尼器%弹塑性屈服%滞回特性%工作原理
能量耗散%金屬阻尼器%彈塑性屈服%滯迴特性%工作原理
능량모산%금속조니기%탄소성굴복%체회특성%공작원리
Energy dissipation%metal damper%elastoplastic yield%hysteretic characteristics%working principle
能量耗散是减少建筑结构或构件在地震中损伤和破坏的关键,应用金属阻尼器是耗散地震能量的重要手段之一。金属阻尼器主要是利用金属进入弹塑性屈服状态产生滞回进行耗能,具有造价低廉,耗能能力稳定的优点。在重点介绍目前几种被广泛应用的金属阻尼器的基础上,阐述了其工作原理、构造要求和工程应用情况。其中,对铅挤压阻尼进行了设计和制作,并对其进行了力学性能测试,测试结果显示:铅挤压阻尼器力-位移曲线接近矩形,符合“库伦摩擦”的特点;力-速度曲线接近双“ S”形,阻尼器耗能能力较强且性能稳定。最后,提出今后金属阻尼器的发展方向和需要进一步解决的问题。
能量耗散是減少建築結構或構件在地震中損傷和破壞的關鍵,應用金屬阻尼器是耗散地震能量的重要手段之一。金屬阻尼器主要是利用金屬進入彈塑性屈服狀態產生滯迴進行耗能,具有造價低廉,耗能能力穩定的優點。在重點介紹目前幾種被廣汎應用的金屬阻尼器的基礎上,闡述瞭其工作原理、構造要求和工程應用情況。其中,對鉛擠壓阻尼進行瞭設計和製作,併對其進行瞭力學性能測試,測試結果顯示:鉛擠壓阻尼器力-位移麯線接近矩形,符閤“庫倫摩抆”的特點;力-速度麯線接近雙“ S”形,阻尼器耗能能力較彊且性能穩定。最後,提齣今後金屬阻尼器的髮展方嚮和需要進一步解決的問題。
능량모산시감소건축결구혹구건재지진중손상화파배적관건,응용금속조니기시모산지진능량적중요수단지일。금속조니기주요시이용금속진입탄소성굴복상태산생체회진행모능,구유조개저렴,모능능력은정적우점。재중점개소목전궤충피엄범응용적금속조니기적기출상,천술료기공작원리、구조요구화공정응용정황。기중,대연제압조니진행료설계화제작,병대기진행료역학성능측시,측시결과현시:연제압조니기력-위이곡선접근구형,부합“고륜마찰”적특점;력-속도곡선접근쌍“ S”형,조니기모능능력교강차성능은정。최후,제출금후금속조니기적발전방향화수요진일보해결적문제。
Energy dissipation is critical for minimizing damage and degradation of structural connections due to earthquakes.Supplemental dampers are a means of repeatedly dissipating energy without damage to the struc -ture .The seismic energy is dissipated by making metal into the elastoplastic yield state, because the metal damp-ers have hysteresis characteristics in this state.With the advantages of low cost, stable energy dissipation capaci-ty, so,the metal dampers are widely used in structures .Several metal dampers are mainly introduced in this pa-per.And the working principle, construction structural measures and engineering applications are summarized. Subsequently, the lead extrusion damper is designed and experimental tested.The test results show that the force-displacement curves close to be rectangular, which is consistent with the characteristics of the"Coulomb fric-tion".The force-velocity curves exhibit approximately double "S"shape, and the damper has strong energy dissipation capacity and stable performance.Finally, the future development and the problems to be solved of the metal dampers are also proposed.