- 高育欣，朱文凱，羅遙凌，楊 文，謝昱昊，閆欣宜
引用本文摘 ? 要：開展了2根超高性能混凝土（UHPC）梁和1根鋼筋混凝土（RC）梁的對比試驗研究，得到了3根構件的承載力-撓度曲線、裂縫開展圖和跨中截面應變圖。結果表明：UHPC梁的受力過程可分為彈性階段、裂縫開展階段、屈服階段和完全破壞階段；鋼纖維可以防止構件發生斜拉破壞；UHPC梁具有剛度大和延性大的特點；UHPC梁的開裂荷載高于RC梁，正截面承載力計算時不能忽略UHPC的抗拉強度。 Abstract: The comparative experimental study of two ultra-high performance concrete(UHPC) beams and one reinforced concrete(RC) beam was carried out, and the bearing capacity deflection curves, crack development diagrams and midspan section strain diagrams of the three members were obtained. The results show that the failure process of UHPC beam can be divided into elastic stage, crack development stage, yield stage and complete failure stage. Steel fiber can prevent the component from cable-stayed failure. UHPC beams have the advantages of high stiffness and good ductility. The cracking load of UHPC beam is higher than that of RC beam, and the tensile strength of UHPC cannot be ignored in the calculation of normal section bearing capacity.
高育欣,朱文凱,羅遙凌,等.配筋超高性能混凝土（UHPC）梁彎曲試驗研究[J].混凝土與水泥制品,2021(7):67-70. GAO Y X,ZHU W K,LUO Y L,et al.Research on Bending Behavior of Reinforced Ultra-high Performance Concrete （UHPC） Beams[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(7):67-70.