- 摘 要
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(北京工業(yè)大學工程抗震與結(jié)構(gòu)診治北京市重點實驗室,北京 100124)
[摘要] 墻式阻尼器雖然能夠滿足諸如開放空間和開口等使用功能的要求,但會對與之相連的梁產(chǎn)生附加彎矩并影響梁配筋。為了研究墻式阻尼器對梁的附加彎矩影響,利用反彎點法得到了墻式阻尼器在梁中產(chǎn)生的附加彎矩,探討了阻尼器的布置位置、附加阻尼比和等效剛度等因素與梁中附加彎矩的關(guān)系;結(jié)合一工程實例,探討了墻式阻尼器的減震效果。研究結(jié)果表明,墻式阻尼器能夠有效改善結(jié)構(gòu)在地震作用下的內(nèi)力,大震滯回飽滿,耗能穩(wěn)定,在梁中產(chǎn)生的附加彎矩不會影響梁的配筋。
[關(guān)鍵詞] 墻式阻尼器;附加彎矩;工程加固
中圖分類號:TU318+.1 文獻標示碼:A
*國家自然科學基金(51378039),高等學校博士學科點專項科研基金(20111103110015)。
作者簡介:張新發(fā),碩士研究生,Email:fafajason@126.com。
Research on the additional moment of wall-type damper and wall-type damper structure
Zhang Xinfa,Yan Weiming,Su Fengyang,Teng Fei
(Beijing University of Technology, Key Lab of Earthquake Engineering and Structural Retrofit, Beijing 100124,China)
Abstract: In order to study the additional moment of wall-type damper, establish the formula of additional moment and the relationships of additional damping radio, location, damper equivalent stiffness and additional moment are discussed.. Combined with an engineering example to investigate the damping effect of wall-type damper. The analysis results show that wall-type damper can improve the force of structure under earthquake effectively and its hysteresis loop is full and stable. The additional moment on the beam does not affect the reinforcement results.
Keywords: wall-type damper;additional moment;reinforcement project
參 考 文 獻
[1] 李愛群. 工程結(jié)構(gòu)減震控制[M]. 北京: 機械工業(yè)出版社, 2007.
[2] T T SOONG,G F DARGUSH. Passive energy dissipation system in structural engineering [M]. EERI, NN-8, 2001.
[3] 閆維明,張春科,彭凌云,等.一種剪切型鉛阻尼器及其在某火電廠房中的應用[J].工業(yè)建筑,2008,38(7) : 41-44.
[4] 翁大根,賀輝,呂西林,等.上海世博會主體館采用黏滯阻尼器支撐的機構(gòu)分析[J].土木工程學報,2009,42(12):118-126.
[5] 閆維明,王瑾,張向東.某高層剪力墻住宅結(jié)構(gòu)減震分析與設計[J].建筑結(jié)構(gòu),2011,41(1):59-62.
[6] 韓巍,彭凌云,張徐,柯長華. 振動工程在奧林匹克會議中心工程中的應用研究[J].建筑結(jié)構(gòu),2008,38(1):33-36.
[7] 付仰強,閆維明,紀金豹,王維凝.墻式組合型金屬阻尼器的有限元分析與工程應用研究[J].地震工程與工程振動,2012,32(1):174-181.
[8] KELLY J M, SKINNER R I, HEINE A J. Mechanisms of energy absorption in special devices for use in earthquake
-resistant structures[J]. National Society for Earthquake Engineering,1972,5(3):63-88.
GB50011-2010建筑抗震設計規(guī)范[S].北京:中國建筑工業(yè)出版社,2010.