均勻配筋及配置工形型鋼高強(qiáng)混凝土偏心受壓構(gòu)件正截面承載力
馮 鵬 葉列平 莊崖屏
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馮 鵬 葉列平 莊崖屏
(清華大學(xué)土木工程系 北京 100084)[提要] 在正在修訂的《混凝土結(jié)構(gòu)設(shè)計規(guī)范》中，混凝土的強(qiáng)度等級擴(kuò)充到C80。針對現(xiàn)行規(guī)范 (GBJ10-89) 中均勻配筋及配置工形型鋼的偏心受壓構(gòu)件正截面承載力設(shè)計計算公式，對高強(qiáng)混凝土的適用性進(jìn)行了討論。
[關(guān)鍵詞] 高強(qiáng)混凝土 正截面承載力 等效矩形應(yīng)力圖The concrete grade is extended to C80 in the emending Design Code of Concrete Stmcture. the applicability of the design formulae for eccentrically compressed members of high-strength concrete with uniformly distributed reinforcement or I-shaped steel in the current code (CBJl0-89)is discussed.
Keywords: high-strength concrete; nonnal section strength; equivalent rectangular stress block
