梯形波纹板加筋新型钢板剪力墙的循环性能

IF 1.4 4区工程技术 Q3 ENGINEERING, CIVIL

Periodica Polytechnica-Civil Engineering Pub Date : 2023-10-17 DOI:10.3311/ppci.22020

Seyedeh Maryam Dashti Zand, Vahidreza Kalatjari, Nader K. A. Attari

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引用次数: 0

摘要

未加筋钢板剪力墙屈曲强度较低，在侧向荷载作用下产生较大的斜向张力场。波纹板具有更高的面外刚度和更好的屈曲稳定性。波纹板与平板组合在钢剪力墙腹板中是有效的。提出了一种用梯形波纹钢板加固的新型钢剪力墙体系。在本研究中，试验研究了该系统在循环荷载作用下的性能。采用三分之一比例尺对4个试件进行了评价，分别为对照无加筋试件、垂直45°梯形波纹腹板试件、波纹腹板加2块平板加固试件和平板腹板加2块波纹板加固试件。在所有四个试件中，钢板总厚度相同;因此，三板试件中每块板的厚度为一板试件的三分之一。研究参数为承载力、最大基底剪力、刚度、延性、能量吸收和耗散能力修正系数。结果表明，与未加筋试件、垂直45°梯形波纹腹板和加2块平板的波纹腹板相比，加2块波纹腹板的平板腹板的最大侧载能力分别提高了17%、37%和19%。结果表明，两波纹板加筋平腹板试件的抗震性能明显优于其他试件。

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Cyclic Behavior of New Steel Plate Shear Walls Reinforced with Trapezoidal Corrugated Plates

Unstiffened steel plate shear walls have low buckling strength, which caused development diagonal tension field under lateral load. Corrugated plates have higher out-of-plane stiffness and improved buckling stability. Combining corrugated and flat plates in steel shear wall web could be effective. In this paper a new steel shear wall system reinforced with trapezoidal corrugated steel plates were proposed. In this study, the behavior of the system was experimentally studied under cyclic loading. Four specimens with the one-third scale were evaluated, which were control unstiffened specimen, the specimen with vertical 45° trapezoidal corrugated web, specimen with a corrugated web plate reinforced with two flat plates, and specimen with a flat web plate reinforced with two corrugated plates. In all four specimens, the total thicknesses of steel plates were the same; therefore, the thickness of each plate in specimens with three plates was one-third of the specimen with one plate. The studied parameters were the bearing capacity, maximum base shear, stiffness, ductility, energy absorption, and modification factor for the dissipation capacity of the specimens. The results revealed the maximum lateral load capacity of specimen with a flat web plate reinforced with two corrugated plates increased about 17%, 37%, and 19%, comparly to unstiffened specimens, vertical 45° trapezoidal corrugated web, and corrugated web plate reinforced with two flat plates, respectively. According to the results, the behavior of the seismic parameters of the proposed specimen with a flat web plate reinforced with two corrugated plates was clearly better than that of the other specimens.

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来源期刊

Periodica Polytechnica-Civil Engineering 工程技术-工程：土木

CiteScore

3.40

自引率

16.70%

发文量

审稿时长

12 months

期刊介绍： Periodica Polytechnica Civil Engineering is a peer reviewed scientific journal published by the Faculty of Civil Engineering of the Budapest University of Technology and Economics. It was founded in 1957. Publication frequency: quarterly. Periodica Polytechnica Civil Engineering publishes both research and application oriented papers, in the area of civil engineering. The main scope of the journal is to publish original research articles in the wide field of civil engineering, including geodesy and surveying, construction materials and engineering geology, photogrammetry and geoinformatics, geotechnics, structural engineering, architectural engineering, structural mechanics, highway and railway engineering, hydraulic and water resources engineering, sanitary and environmental engineering, engineering optimisation and history of civil engineering. The journal is abstracted by several international databases, see the main page.