（1 东南大学土木工程学院，南京 210096；2 徐州工程学院，徐州 221018）

[摘要]  钢-混凝土组合结构在国内外工程中应用越来越广泛，栓钉连接件是保证钢梁和混凝土面板共同工作的关键部件，因此在组合结构中连接件的性能至关重要。在钢-混凝土组合梁桥的长期使用中，结构需要承受车辆动荷载作用，因此合理地进行组合梁的疲劳设计，以保证桥梁结构不发生破坏显得尤为重要。主要通过对国内外已有研究的总结，简单介绍了栓钉连接件的钢-混凝土组合结构中疲劳问题的主要研究内容，包括疲劳破坏模式，疲劳寿命预测，疲劳损伤理论，疲劳性能影响因素。

[关键词]  钢-混凝土组合结构；栓钉连接件；疲劳

中图分类号：TU398.9     文献标识码：A     文章编号：

A research about fatigue behavior of steel-concrete composite beams with stud connectors

Chen Leilei^1,2, Wang Jingquan¹, Yin Huiguang²

(1 School of Civil Engineering, Southeast University, Nanjing 210096, China;

2 Xuzhou Institute of Technology, Xuzhou 221018, China)

Abstract: The steel-concrete composite structure is more and more widely used at home and abroad and stud connector is the key components to guarantee the steel beam and concrete slab to work together, so that the performance of stud connector is very important in the composite structure. The structures need to sustain vehicle dynamic load in the long-term use of steel and concrete composite bridge, so it is particularly important to determine the fatigue design of composite beams reasonably to guarantee the bridge structure to be safe. Domestic and foreign researchs were mainly summarized in order to introduce the research status about fatigue problems of composite structures with stud connectors, which include fatigue failure mode, the prediction of fatigue endurance, fatigue damage theory and the influencing factors of fatigue performance.

Keywords: Steel-concrete Composite Structures; Stud Connectors; Fatigue

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