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劉沈如1 張其林1 倪建公2 顧明劍3
(1 同濟(jì)大學(xué)土木工程學(xué)院,上海 200092; 2 中船第九設(shè)計(jì)研究院工程有限公司,上海 200063; 3 中國聯(lián)合工程公司,杭州310022)[摘要] 對單個(gè)錨栓抗拉承載力進(jìn)行了試驗(yàn)研究和有限元分析,兩者結(jié)果基本吻合,驗(yàn)證了錨栓承載力試驗(yàn)的可靠性和有限元分析方法的合理性,由此得到的錨栓本構(gòu)關(guān)系可為受拉柱腳節(jié)點(diǎn)研究提供參數(shù),同時(shí)也為實(shí)際工程提供參考。數(shù)值分析考慮了錨栓和混凝土接觸面粘結(jié)滑移非線性,采用面面接觸來模擬錨栓與混凝土的共同工作,較能反映實(shí)際受力情況。
[關(guān)鍵詞] 錨栓;承載力;設(shè)計(jì)方法;試驗(yàn)研究;有限元分析Test and finite element analysis on tension bearing capacity for single anchor bolt
Liu Shenru1, Zhang Qilin1, Ni Jiangong2, Gu Mingjian3
(1 College of Civil Eng., Tongji Uni., Shanghai 200092. China; 2 China Shipbuilding the Ninth Design Research Institute Co.,Ltd., Shanghai 200063, China; 3 China United Eng. Corporation, HangZhou 310022, China)Abstract: The tests data of tension bearing capacity for singe anchor bolt are compared with the results of finite element analysis, which can verify the reliability of tests and reasonability of the finite analysis method. The constitution properties of anchor model acquired from tests or FEA can be used to offer parameters for analyzing the behavior of column base and propose design recommendations in practical engineering. By considering the nonlinearity of the interface slip,the mode of surface to surface contact is adopted to simulate the interaction of anchor and concrete as a whole. Such numerical model can reflect the actual load situations satiffactorily.
Keywords: ancbor bolt; bearing capacity; design methods; experimental research; finite element analysis
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