884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

（1 上海應(yīng)用技術(shù)學(xué)院土木工程系，上海 201418； 2 上海藍(lán)科建筑減震科技股份有限公司，上海 200433）

［摘要］屈曲約束支撐抗震性能試驗(yàn)標(biāo)準(zhǔn)是進(jìn)行產(chǎn)品檢驗(yàn)的重要依據(jù)，但在我國(guó)已有的涉及該部分內(nèi)容的5本標(biāo)準(zhǔn)中規(guī)定不一致。通過(guò)對(duì)5本標(biāo)準(zhǔn)中相關(guān)內(nèi)容的對(duì)比，提出屈曲約束支撐抗震性能的試驗(yàn)標(biāo)準(zhǔn)，明確了大應(yīng)變低周疲勞試驗(yàn)中位移幅值的取值方法。通過(guò)屈曲約束支撐的抗震性能試驗(yàn)，得到了試件骨架曲線以及疲勞破壞特征，給出了屈服后剛度建議值。進(jìn)行了兩根屈曲約束支撐的大應(yīng)變低周疲勞試驗(yàn)，分析了構(gòu)件破壞特征，并給出提高屈曲約束支撐疲勞性能的加工工藝的建議。

［關(guān)鍵詞］屈曲約束支撐; 滯回性能; 低周疲勞試驗(yàn); 屈服后剛度

中圖分類號(hào)：TU317      文獻(xiàn)標(biāo)識(shí)碼：A      文章編號(hào)：1002-848X(2014)18-0084-05

Tests research on large strain low cycle fatigue of buckling restrained braces

Hu Dazhu1,2

 (1 Department of Civil Engineering, Shanghai Institute of Technology, Shanghai 201418, China; 2 Shanghai Lanke Building Damping Technology Co., Ltd., Shanghai 200433, China)

Abstract: The seismic performance test standards of buckling restrained braces(BRBs) are important bases for the product inspection, but the test standard requirements of five domestic standards are different. The seismic performance test standards of BRBs were presented through the comparisons of the relevant content in five standards, and the displacement amplitude value in large strain low cycle fatigue test was defined. Through the seismic performance tests of BRBs, skeleton curves and fatigue failure characteristics were obtained and recommended post-yield stiffness value was given. Large strain low cycle fatigue tests on two BRBs were carried out. The failure characteristics of members were analyzed and proposed manufactured technology to develop fatigue performances of BRBs was given.

Keywords: buckling restrained brace; hysteretic behavior; low cycle fatigue test; post-yield stiffness

*上海應(yīng)用技術(shù)學(xué)院引進(jìn)人才項(xiàng)目（YJ2013-5）。

作者簡(jiǎn)介：胡大柱，博士，講師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：dazhuhu@163.com。

參考文獻(xiàn)

［1］IWATA M, MURAI M. Buckling-restrained brace using steel mortar planks: performance evaluation as a hysteretic damper［J］. Earthquake Engineering and Structural Dynamics, 2006, 35(14): 1807-1826.

［2］高向宇，杜海燕，張惠，等. 國(guó)標(biāo)Q235熱軋鋼材防屈曲支撐抗震性能試驗(yàn)研究［J］. 建筑結(jié)構(gòu), 2008, 38(3): 91-95.

［3］DG/TJ 08-32—2008高層建筑鋼結(jié)構(gòu)設(shè)計(jì)規(guī)程［S］.上海：上海市建筑建材業(yè)市場(chǎng)管理總站，2008.

［4］CECS 260—2009端板式半剛性連接鋼結(jié)構(gòu)規(guī)程［S］.北京：中國(guó)計(jì)劃出版社，2009.

［5］GB 50011—2010建筑抗震設(shè)計(jì)規(guī)范［S］.北京：中國(guó)建筑工業(yè)出版社，2010.

［6］DBJ/CT 105—2011 TJ屈曲約束支撐應(yīng)用技術(shù)規(guī)程［S］.上海：上海市建筑建材業(yè)市場(chǎng)管理總站，2011.

［7］JGJ 297—2013建筑消能減震技術(shù)規(guī)程［S］.北京：中國(guó)建筑工業(yè)出版社，2013.

［8］趙俊賢，吳斌，歐進(jìn)萍. 新型全鋼防屈曲支撐的擬靜力滯回性能試驗(yàn)［J］. 土木工程學(xué)報(bào), 2011, 44(4): 60-68.

［9］楊昌民，牧野俊雄，李宏男. 防屈曲支撐的研究進(jìn)展及其工程應(yīng)用［J］. 建筑科學(xué)與工程學(xué)報(bào), 2011, 28(4): 75-85.

［10］黃波，陳泉，李濤，等. 國(guó)標(biāo)Q235鋼屈曲約束支撐低周疲勞試驗(yàn)研究［J］. 土木工程學(xué)報(bào), 2013, 46(6): 29-43.

［11］羅開(kāi)海，孔祥雄，程紹革. 一種新型屈曲約束支撐的研制與試驗(yàn)研究［J］. 建筑結(jié)構(gòu), 2010, 40(10): 1-6.