- 摘 要
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張 譽 李向民 李 輝 （同濟大學(xué)土木工程學(xué)院 上海 200092）陳宗梁 （華東建筑設(shè)計研究院 上海 200002）
[提要] 對實腹式型鋼與高強混凝土( C80)的粘結(jié)性能進行了試驗研究。分析了型鋼與混凝土的粘結(jié)機理以及影響粘結(jié)性能的因素，給出粘結(jié)力一滑移（P-A）本構(gòu)關(guān)系和粘結(jié)應(yīng)力分布模式，提出了滿足工程精度的粘結(jié)力計算公式，并分析推導(dǎo)了臨界保護層厚度的計算公式。
[關(guān)鍵詞] 鋼骨混凝土結(jié)構(gòu) 粘結(jié) 型鋼 臨界保護層厚度Based on the experimental study on the bond behavior between composite steel shape and high strength concrete (C80), the bond mechanism between steel and concrete is analyzed and several parametres which affect the bond behavior are discussed. The relationship between bond force( P) and slip(△)and he distribution mode of bond stress are also noted. In order to calculate the bond force, a simplified equation which is satisfactory for engineering precsion is supposed. Moreover, a calculating formula to define the critical concrete cover thickness is proposed.
Keywords: bond; composite steel shape; critical concrete cover thickness
