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(江蘇大學(xué)土木工程系 鎮(zhèn)江 212013)
【提要】 對(duì)CFRP斜拉索的靜力參數(shù)特性如切線剛度、豎向分力、垂度等進(jìn)行了計(jì)算，并與傳統(tǒng)的鋼絞線斜拉索的計(jì)算結(jié)果進(jìn)行了對(duì)比分析。計(jì)算結(jié)果表明：由于CFRP索的彈性模量和單位長(zhǎng)度重量低于傳統(tǒng)的鋼索，其等效剛度系數(shù)小于鋼拉索，索的豎向分力等效系數(shù)在工程應(yīng)力范圍內(nèi)接近1，垂度效應(yīng)明顯小于鋼拉索。
【關(guān)鍵詞】 CFRP 斜拉索 等效剛度 豎向分力 垂度
Static Parameter Characteristic Analysis of CFRP Cables /Liu Ronggui,Li Chengji,Jiang Feng,Gong Xianghua(Department of Civil Engineering,Jiangsu University,Zhenjiang 212013,China)
Abstract:The  static parameter characters of CFRP cables such as equivalent stiffness,vertical component of forces,sag effects are computed. A series of advantages of CFRP cables are found compared  with that of steel cables. For its low elastic modulus and weight of unit length,the equivalent stiffness coefficient of CFRP cables is lower than that of steel cables. The equivalent coefficient of CFRP cables in vertical component of forces is close to 1 within engineering stress. The sag effects of CFRP cables are highly lower than that of steel cables.

Keywords:CFRP; stayedcables; equivalent stiffness; vertical component of forces; sag

*國(guó)家自然科學(xué)基金資助項(xiàng)目(50178018)。