鋼梁-圓鋼管混凝土柱穿心連接抗震性能試驗(yàn)研究
錢(qián)稼茹1，馮善文1，曹萬(wàn)林2，盧理杰3
- 摘 要
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錢(qián)稼茹1，馮善文1，曹萬(wàn)林2，盧理杰3（1 清華大學(xué)土木工程安全與耐久教育部重點(diǎn)試驗(yàn)室， 北京 100084； 2 北京工業(yè)大學(xué)建筑工程學(xué)院，北京 100124； 3 北京京誠(chéng)華宇建筑設(shè)計(jì)研究院有限公司， 北京 100053）［摘要］為研究鋼梁圓鋼管混凝土柱穿心連接的抗震性能，進(jìn)行了3個(gè)大尺寸鋼梁根部翼緣不處理的標(biāo)準(zhǔn)型、翼緣削弱型及翼緣擴(kuò)大型節(jié)點(diǎn)試件的擬靜力試驗(yàn)。試驗(yàn)結(jié)果表明：試件的破壞形態(tài)為鋼梁根部坡口焊縫與鋼管之間開(kāi)裂，鋼梁端部翼緣局部屈曲；鋼梁懸臂端的極限位移角達(dá)004左右；鋼梁固端彎矩懸臂端轉(zhuǎn)角滯回曲線飽滿；翼緣削弱型試件的極限承載力為標(biāo)準(zhǔn)型試件的78％。建議在抗震設(shè)計(jì)的建筑工程中，鋼梁圓鋼管混凝土柱可采用梁端部翼緣不處理的標(biāo)準(zhǔn)型穿心連接。［關(guān)鍵詞］鋼梁； 圓鋼管混凝土柱； 梁柱穿心連接； 抗震性能； 擬靜力試驗(yàn)中圖分類號(hào)：TU317+.1文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002848X(2013)12005705Test study on seismic behavior of through beam connections of steel beamsto circular concretefilled steel tube columnsQian Jiaru1, Feng Shanwen1, Cao Wanlin2, Lu Lijie3(1 Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Tsinghua University, Beijing100084, China;2 College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China;3 Beijing Jingcheng Huayu Architecture Design and Research Institute Co., Ltd., Beijing 100053, China)Abstract:To study seismic behavior of through beam connections of steel beams to circular concretefilled steel tube columns, quasistatic test of three largescale joint specimens with different steel beam flange were conducted. The test results indicate that: the failure modes of specimens are fracturing between the groove welds at the end of beam flange and the steel tube, and are local buckling of beam flanges; for all three specimens, the ultimate rotation at the cantilever end of steel beam reaches 004; the hysteretic loops of the steel beam fixed end momentcantilever end rotation are plump; the ultimate loadcarrying capacity of the flange weakened type specimen is 78% of that of the standard type specimen. It is recommended to use the standard type through beam connections of steel beams to circular concretefilled steel tube columns in the practice engineering projects.Keywords:steel beam; circular concretefilled steel tube column; through beam connection of beam to column; seismic behavior; quasistatic test*北京市科技計(jì)劃重點(diǎn)項(xiàng)目(D09050600370000)，北京市教委科技計(jì)劃重點(diǎn)項(xiàng)目(KZ200910005008)。作者簡(jiǎn)介：錢(qián)稼茹，教授, Email:qianjr@tsinghua.edu.cn。參考文獻(xiàn)［1］JGJ 3—2010高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程［S］. 北京: 中國(guó)建筑工業(yè)出版社,2011.［2］陳鵑,王湛,袁繼雄.加強(qiáng)環(huán)式鋼管混凝土柱鋼梁節(jié)點(diǎn)的剛性研究［J］.建筑結(jié)構(gòu)學(xué)報(bào),2004,25(4):4350.［3］蘇恒強(qiáng),蔡健,姚大鑫,等.鋼管混凝土加強(qiáng)環(huán)式節(jié)點(diǎn)的試驗(yàn)研究［J］.華南理工大學(xué)學(xué)報(bào)：自然科學(xué)版, 2004, 32(1):8084.［4］PRION H G L, MCLELLAN A B. Connecting steel beams to concretefilled steel columns ［C］//Proc., ASCE Structures Congress on Composite Compression Members. New York, 1992: 918921.［5］ATOROD AZIZINAMINI, STEPHEN P SCHNEIDER. Moment connections to circular concretefilled steel tube columns［J］. Journal of Structural Engineering, ASCE, 2004, 130(2):213222.
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