活性粉末混凝土双向悬臂板跨中加载的抗弯性能研究  

Research on the Flexural Behavior of Reactive Powder Concrete Bilateral Cantilever Slab Subjected to Mid-span Load

作　　者：司金艳[1] 黄磊[2] 王晓江[1] 范良[1] 肖锐[3] 李彦滨 

机构地区：[1]北京市市政工程研究院,北京100037 [2]北京市公联公路联络线有限责任公司,北京100071 [3]北京工业大学建筑工程学院,北京100022 [4]北京市市政专业设计院有限责任公司,北京100037

出　　处：《施工技术》2013年第11期101-104,113,共5页Construction Technology

摘　　要：结合某组合结构的人行天桥试验工程,以天桥横向受力为设计控制工况,设计相关试验,探究活性粉末混凝土双向悬臂板在跨中加载时的抗弯性能。通过试验,了解配置了HRB500高强钢筋的活性粉末混凝土双向悬臂板承受跨中荷载时的受力、变形特点和板件的破坏机理,以及活性粉末混凝土结构与普通混凝土结构的受力区别。并通过平面杆系和实体单元两种不同的有限元模型进行计算,与试验结果进行对比分析。Combined with a pedestrian bridge project using composite structure,with the lateral loading as the control condition,a test was designed to investigate the flexural behaviour of reactive powder concrete（RPC） bilateral cantilever slab subjected to mid-span load.From the test,the flexural behavior,deformation characteristics and failure mechanism of RPC bilateral cantilever slab with high strength reinforcement of HRB500 were obtained as well as the difference between RPC structure and ordinary concrete structure.Finite element simulations were performed using planar beam elements and brick elements and the results were compared to test results.

关 键 词：天桥 混凝土 活性粉末混凝土 高强钢筋 双向悬臂板 抗弯性能 有限元分析 

分 类 号：TU528[建筑科学—建筑技术科学] U448[建筑科学—桥梁与隧道工程]