配筋鋼纖維混凝土純扭構(gòu)件荷載-變形分析*
張大長 劉偉慶 陸偉東
- 摘 要
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張大長 （東南大學(xué)土木系 南京 210018）劉偉慶 陸偉東 （南京建筑工程學(xué)院 210009）
[提要] 將配筋鋼纖維混凝土純扭構(gòu)件荷載一變形全曲線分成開裂前和開裂后兩階段，開裂前按彈性工作狀態(tài)計算；開裂后采用空間軟化桁架模型分析。比較表明，理論計算與試驗結(jié)果符合較好。
[關(guān)鍵詞] 鋼筋混凝土 鋼纖維 純扭 空間桁架模型 軟化 變形 內(nèi)力The load-defomation complete curve of reinforced steel fibrous concrete pure torsional member is divided into "two stages", the stage before cracking and the stage after cracking. The elastic theory is applied to analyse the stage before cracking, and the space softerung truss model is applied to analyse another. Comparision shows a good agreements between the theoretical calculation and the test results.
Keywords: reinforced concrete; steel fiber; pure torsion; space struss model; softening; deformation; internal force
