摘要
钢-混凝土组合梁广泛应用于桥梁结构,由车辆等活荷载引起的疲劳问题日益突出,但国内对钢-混凝土组合梁疲劳性能的研究并不充分,规范中相关的疲劳设计条款有待完善。疲劳试验是研究钢-混凝土组合梁疲劳性能的主要途径之一,而其耗时长、费用高的特点决定了无法进行大量的试验研究。因此,对现有研究成果进行汇总分析具有重要的意义。本文通过整理、分析国内外的研究文献和设计规范,对钢-混凝土组合梁的疲劳性能、疲劳设计方法等进行了探讨,相关内容可以为组合梁的疲劳设计提供参考。
Steel - concrete composite beams are widely applied in bridge structures. The problem of fatigue damage caused by vehicle loads is becoming more and more serious. While research on fatigue performance of composite beams is insufficient in our country and the fatigue design guidelines in current codes are incomplete. At present, the fatigue performance of composite beams are mainly studied based on experimental programs. However, the characteristics of consuming time and high cost of fatigue tests make it difficult to conduct a lot of research. Therefore, it is greatly significant to summarize and analyze the existing research results. This paper investigated the fatigue performance, methods for fatigue design of composite beams on basis of the research literatures and design codes all over the world. The presented studies involved in this paper could provide some reference for the fatigue design.
出处
《河北工程大学学报（自然科学版）》
CAS
2010年第1期16-20,共5页
Journal of Hebei University of Engineering:Natural Science Edition
关键词
钢-混凝土组合梁
疲劳性能
抗剪连接件
预应力
steel - concrete corriposite beam
fatigue performance
shear connector
pre - stress
