Investigation of fatigue resistance of fillet-welded tube connection details for sign support structures
作者机构：Titan Engineers PCUnionNJ 08854USA Department of Civil and Environmental EngineeringRutgersthe State University of New JerseyPiscatawayNJ 08853USA
出 版 物：《Frontiers of Structural and Civil Engineering》 (结构与土木工程前沿（英文版）)
年 卷 期：2020年第14卷第1期
页 面：199-214页
核心收录：
学科分类：08[工学] 081402[工学-结构工程] 081304[工学-建筑技术科学] 0813[工学-建筑学] 0814[工学-土木工程]
主 题：fatigue weld connections base plate fillet welds
摘 要：Stiffened and unstiffened fillet-welded tube-to-transverse plate connection details are widely used for mast-arm and base-plate connections for highway sign ***,due to repetitive wind loads,cyclic fatigue stresses are induced and they are the primary source of failure in welded connections at these *** resistance of fatigue critical details has been an on-going research topic because of limited experimental results and the variability in existing fatigue testing *** main objective of this study is to evaluate fatigue resistance of fillet-welded tube connection details by utilizing the advanced fatigue tool in ANSYS Workbench *** Element(FE)models development and model validation using existing test data was *** resulting fatigue resistance from FE analysis was expressed in terms of fatigue life,fatigue damage,and fatigue safety factor to determine the fatigue performance of fillet-welded *** fatigue test data was grouped to perform a synthetic analysis and then analysis results were provided to determine input data and fatigue limit for the fatigue *** local stress level at fatigue critical locations was evaluated using a static FE model for different number of stiffeners and boundary *** results of this investigation provides fatigue resistance of fillet-welded connection details in the form of fatigue life,fatigue damage and safety factor for various connection parameters and structural conditions.
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