IF 6.7 2区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY
Jingting Lin, Bo Jiang, Dawei Gu, Junxiu Hu, Qianpeng He, Li Xu, Jinlong Pan
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引用次数: 0

摘要

用工程水泥基复合材料(ECC)替代普通混凝土是解决钢-混凝土复合结构开裂问题的一种可行方法。为实现 ECC 与钢材之间的协同变形,可采用带头螺栓连接件来确保沿其界面的有效剪力传递。为了解带头螺栓在 ECC 中的剪力传递机制,本研究采用了实验、数值和分析综合方法。首先,进行了 13 次推出试验,以探索 ECC 中螺栓的剪切载荷-滑移行为。然后,基于有限元模型进一步进行了参数分析,以评估螺栓直径和长度、ECC 抗压强度、配筋率和 ECC 层厚度的影响。最后,基于弹性地基梁模型以及对实验和数值结果的回归分析,建立了评估 ECC 中带头螺栓的剪切承载力、刚度和滑移能力的综合分析模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Shear transfer mechanism of headed stud connectors in engineered cementitious composites (ECC): Experimental observation, numerical investigation and analytical model
Substituting normal concrete with engineered cementitious composites (ECC) is a promising way to address the cracking issue in steel-concrete composite structures. For realizing a synergetic deformation between ECC and steel, headed stud connectors can be incorporated to ensure an effective shear transfer along their interface. To understand the shear transfer mechanism of headed studs in ECC, a comprehensive experimental, numerical, and analytical approach is employed in this research. Firstly, a set of 13 push-out tests were carried out to explore the shear load-slip behavior of studs in ECC. Then, a parametric analysis was further conducted based on the finite element model to evaluate the influence of the diameter and length of stud, compressive strength of ECC, reinforcement ratio, and thickness of ECC layer. Finally, comprehensive analytical models for evaluating the shear carrying capacity, stiffness, and slipping ability of headed studs in ECC were established based on the elastic foundation beam model and regression analysis of experimental and numerical results.
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来源期刊
Journal of building engineering
Journal of building engineering Engineering-Civil and Structural Engineering
CiteScore
10.00
自引率
12.50%
发文量
1901
审稿时长
35 days
期刊介绍: The Journal of Building Engineering is an interdisciplinary journal that covers all aspects of science and technology concerned with the whole life cycle of the built environment; from the design phase through to construction, operation, performance, maintenance and its deterioration.
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