考虑扭转刚度的带加强筋波纹钢板剪力墙的剪切弹性屈曲

IF 5.7 1区 工程技术 Q1 ENGINEERING, CIVIL
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引用次数: 0

摘要

本文对考虑加劲件扭转刚度的加劲波纹钢板剪力墙(SCSPSWs)的剪切弹性屈曲公式进行了理论和数值研究。首先,基于各向同性板理论和能量法,建立了推导弹性屈曲系数的理论模型,引入了加劲件的扭转应变能项。在此基础上,研究了墙体弹性屈曲系数随加劲件位置的变化规律,确定了加劲件的最佳布局。提供了在任何加强筋布局下的弹性屈曲系数计算公式。此外,根据加劲件的最佳布局,确定了加劲件的过渡扭转刚度,并提出了考虑扭转刚度的带加劲件 SCSPSW 的弹性屈曲系数公式,其中加劲件提供的扭转约束的增强用增强系数来衡量。最后,基于有限元模型进行了特征值屈曲分析,以验证关于最佳加劲件布局和弹性屈曲系数的理论分析结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Shear elastic buckling of corrugated steel plate shear walls with stiffeners considering torsional rigidity
This paper conducted theoretical and numerical investigations on shear elastic buckling formulas of stiffened corrugated steel plate shear walls (SCSPSWs) considering torsional rigidities of stiffeners. Firstly, based on the orthotropic plate theory and the energy method, a theoretical model for the derivation of elastic buckling coefficients was established, introducing the torsional strain energy term of the stiffeners. On this basis, the variation law of the elastic buckling coefficient of the walls concerning the stiffener positions was studied, determining the optimal layout of the stiffeners. The formula for calculating the elastic buckling coefficient at any stiffener layout was provided. Furthermore, based on the stiffeners arranged in the optimal layout, the transition torsional rigidity of the stiffeners was determined, and the formulas for the elastic buckling coefficient of the SCSPSW with stiffeners considering torsional rigidity were proposed, in which the enhancement of torsional constraints provided by the stiffeners was measured by an enhancement factor. Finally, eigenvalue buckling analyses were performed based on finite element models to validate the theoretical analysis results on the optimal stiffener layout and elastic buckling coefficient.
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来源期刊
Thin-Walled Structures
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.
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