高强度冷弯加劲槽钢截面：轴向抗压强度和初始几何缺陷

IF 5.7 1区工程技术 Q1 ENGINEERING, CIVIL

Thin-Walled Structures Pub Date : 2024-10-21 DOI:10.1016/j.tws.2024.112604

Damir Akchurin , Shahabeddin Torabian , Benjamin W. Schafer

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引用次数: 0

摘要

本文概述了对具有中间加劲件和回唇的冷弯槽钢截面的柱子进行轴向压缩试验的结果，该截面由名义屈服强度为 690 兆帕（100 千卡）的高强度低合金钢轧制而成。此外，论文还对所研究截面的弹性稳定性进行了分析，完整描述了受测柱的初始几何缺陷、拉伸试样测试结果以及柱的观察强度与设计预测值的比较。这些结果为更广泛地采用高强度冷弯型钢截面提供了重要的额外基准，并指出了现有设计方法可以可靠扩展的条件。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

High-strength cold-formed steel stiffened channel section: Axial compressive strength and initial geometric imperfections

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High-strength cold-formed steel stiffened channel section: Axial compressive strength and initial geometric imperfections

This paper presents a summary of experimental findings from axial compression tests on columns featuring a cold-formed lipped channel section with intermediate stiffeners and return lips, roll-formed from high-strength low-allow steel with a nominal yield strength of 690 MPa (100 ksi). Additionally, the paper provides an analysis of the elastic stability of the studied section, a complete description of the initial geometric imperfections of the tested columns, results of tensile coupon tests, and comparison of the observed strengths of the columns with design predictions. The results provide important additional benchmarks for the wider adoption of high-strength cold-formed steel sections and indicate conditions where existing design methods may be reliably extended.

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来源期刊

Thin-Walled Structures 工程技术-工程：土木

CiteScore

9.60

自引率

20.30%

发文量

801

审稿时长

66 days

期刊介绍： Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses. Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering. The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.