雙向偏壓鋼筋混凝土細(xì)長柱的配筋計(jì)算
王依群1,孫福萍2
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(1 天津大學(xué)建筑工程學(xué)院暨港口與海洋工程教育部重點(diǎn)實(shí)驗(yàn)室,天津 300072;2 天津市建筑設(shè)計(jì)院,天津 300074)[摘要]鋼筋混凝土細(xì)長柱會在材料達(dá)到極限強(qiáng)度前發(fā)生失穩(wěn)破壞,即其破壞荷載小于甚至遠(yuǎn)小于材料強(qiáng)度。盡管細(xì)長柱承載力及配筋計(jì)算與中長柱的不同,但有些設(shè)計(jì)和軟件編制人員仍按照《混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范》的中長柱計(jì)算公式進(jìn)行處理,造成安全隱患。按照歐洲計(jì)算手冊的簡化方法,編制了計(jì)算機(jī)軟件,為設(shè)計(jì)提供了條件。[關(guān)鍵詞]鋼筋混凝土;細(xì)長柱;穩(wěn)定Reinforcement calculation for concrete slender columns under axial load and bi-direction momentsWang Yiqun1, Sun Fuping2(1 School of Civil Engineering & Key Laboratory of Harbor & Ocean Engineering Ministry of Education,Tianjin University, Tianjin 300072, China; 2 Tianjin Architecture Design Institute, Tianjin 300074, China)Abstract:Instability failure often occurres on the slender columns before the strength failure occurres. The reinforcement calculation is different between the slender columns and the moderate long columns. Slender columns were treated as moderate long columns by some programmers of structural software and structural designers, and it caused safety concern. Software is presented based on the method in the Design Handbook of Europe for the reinforcement of slender columns.Keywords:reinforced concrete; slender column; stability作者簡介:王依群,博士,副教授,Email:yqwangtj@hotmail.com。參考文獻(xiàn)[1]GB50010—2002混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范[S].北京:中國建筑工業(yè)出版社,2002.[2]王傳志,滕智明. 鋼筋混凝土結(jié)構(gòu)理論[M]. 北京:中國建筑工業(yè)出版社,1985.[3]張學(xué)忠. 鋼筋混凝土偏心受壓細(xì)長標(biāo)準(zhǔn)柱的穩(wěn)定性研究[D]. 重慶:重慶大學(xué),2004.[4]JAMES G MAC GREGOR, JOHN E BREEN. Design of slender concrete columns[J]. ACI Journal,1970(2):6-28.[5]MONUAL DE CALCUL CEBFIP. Flambement Instabilite[S]. Bulletin D’ Information, CEB, 1973:93.[6]西南交通大學(xué)科技情報(bào)研究室. 鐵道科技譯文(I)CEB/FIP壓屈和失穩(wěn)手冊[S].1983(1).[7]王依群,溫洪星,趙艷靜. 雙向偏壓鋼筋混凝土矩形柱正截面配筋計(jì)算[C]//第二十屆全國高層建筑結(jié)構(gòu)學(xué)術(shù)會議論文集,2008:744-749.[8]嚴(yán)士超,康谷貽,王依群,等. 混凝土異形柱結(jié)構(gòu)技術(shù)規(guī)程理解與應(yīng)用[M].北京:中國建筑工業(yè)出版社,2007.
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