预制波形钢腹板-UHPC组合梁设计及理论研究  

Design and theoretical research on prebuilt composite beam with corrugated steel web and UHPC

作　　者：杨丙文 张建东[2] Yang Bingwen;Zhang Jiandong(Nanjing Vocational Institute of Transport Technology,Nanjing 211188,China;College of Civil Engineering,Nanjing Tech University,Nanjing 211816,China)

机构地区：[1]南京交通职业技术学院,江苏南京211188 [2]南京工业大学土木工程学院,江苏南京211816

出　　处：《建筑科学》2022年第1期135-139,154,共6页Building Science

基　　金：国家自然科学基金项目,项目名称:钢桁腹-混凝土组合梁桥空间受力性能及设计方法研究(51778288)。

摘　　要：结合波形钢腹板梁和UHPC的特点,设计一种新型全预制波形钢腹板-UHPC组合梁,该梁具有抗裂性好、结构轻、承载力强、耐久性好等优点。根据波形钢腹板抗剪不抗弯的特征,以及UHPC超高的抗压强度和较高的抗拉强度,且开裂后由于纤维的桥联作用而具有一定的抗拉强度等特点,推导出新型梁的抗弯承载能力计算方法,利用ANSYS有限元数值分析验证文中推导的理论方法的正确性,利用理论方法进行参数分析UHPC板不同纤维含量对应的抗拉强度的影响。Based on the characteristics of corrugated steel web beam and UHPC, a new type of fully prefabricated corrugated steel web UHPC composite beam is designed, which has the advantages of good crack resistance, light structure, strong bearing capacity and good durability. According to the characteristics of the wave shaped steel webs that are not flexural in shear, the UHPC super high compressive strength and high tensile strength, and due to the bridging effect of the fiber after cracking, the calculation method of the flexural bearing capacity of the new beam is derived. The correctness of the theoretical method is verified by the finite element numerical analysis of ANSYS, and the theoretical method is used to analyze the influence of different fiber content on the tensile strength of UHPC board.

关 键 词：波形钢腹板 超高性能混凝土 组合梁 抗弯承载能力 参数分析 

分 类 号：TU398[建筑科学—结构工程]