Full-range analysis on fatigue performance of prestressed reactive powder concrete-normal concrete composite beam

被引：0

作者：

Wang J. ^{[1
]}

Ji W.-Y. ^{[1
]}

Li W.-W. ^{[1
]}

机构：

[1] School of Civil Engineering, Beijing Jiaotong University, Beijing

来源：

Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2019年 / 53卷 / 05期

关键词：

Composite beam; Fatigue performance; Full-range analysis; Normal concrete; Reactive powder concrete;

D O I：

10.3785/j.issn.1008-973X.2019.05.012

中图分类号：

学科分类号：

摘要：

Full-range analysis on fatigue performance of prestressed reactive powder concrete (RPC)- normal concrete (NC) composite beams was performed, to promote the application of RPC in bridge engineering. Fatigue damage degradation models of NC, RPC, non-prestressed and prestressed reinforcement were established. The full-range analysis on fatigue performance of RPC-NC composite beams was presented combined with piecewise linear method, with the fatigue tensile resistance of RPC considered and ignored in calculation, respectively. Repeated loading with constant amplitude was carried out on two prestressed RPC-NC composite beams to verify the effectiveness of the full-range analysis method. Comparison between experimental and calculation results showed that the stress of non-prestressed reinforcement was significantly larger and the results were too conservative when fatigue tensile resistance of RPC was ignored. The fatigue degradation process of RPC-NC composite beams can be described accurately when fatigue tensile resistance of RPC was considered. © 2019, Zhejiang University Press. All right reserved.

引用

页码：917 / 924and931

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