pet填充斜向CFRP多层波纹板加固钢板剪力墙的滞回性能

IF 6.6 1区工程技术 Q1 ENGINEERING, CIVIL

Thin-Walled Structures Pub Date : 2025-09-09 DOI:10.1016/j.tws.2025.113968

Chu Zhao , Jinguang Yu , Weihui Zhong

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引用次数: 0

摘要

为了进一步提高碳纤维增强聚合物（CFRP）构件的抗屈曲效果，提出了几种新型CFRP斜向波纹板-钢板复合剪力墙。以常规钢板剪力墙（SPSW）和粘结连接对角线CFRP波纹板-钢板复合剪力墙（编号：S-FRP-A）为基础，介绍了CFRP双层对角线波纹板-钢板复合剪力墙（编号：S-DFRP）和PET填充对角线CFRP波纹板-钢板复合剪力墙（编号：S-FRP-PET）粘结-螺栓混合连接。然后，通过准静力循环试验对4种SPSW结构的抗震性能进行比较，并进行有限元分析，提出优化设计方案。试验结果表明，约束方案S-FRP-A使墙板最大面外变形绝对值降低了29.67%，而S-DFRP和S-FRP-PET方案的最大面外变形绝对值分别降低了63.24%和69.91%。S-DFRP和S-FRP-PET方案分别提高了spsw的初始刚度17.32%和30.78%，其中S-FRP-PET方案分别提高了位移延性系数30.81%和累积耗能25.44%。有限元分析建议采用pet填充全CFRP双层波纹板-钢板组合剪力墙的梯形波纹截面作为优化设计方案。

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Hysteretic performance of steel plate shear wall reinforced with PET-infilled diagonal CFRP multi-layer corrugated plate

To further improve the buckling-restrained effect of carbon fiber reinforced polymer (CFRP) components, several new diagonal CFRP corrugated plate-steel plate composite shear walls are proposed. Taking the conventional steel plate shear wall (SPSW) and the diagonal CFRP corrugated plate-steel plate composite shear wall with adhesive connection (number: S-FRP-A) as the baselines, the diagonal CFRP double-layer corrugated plate-steel plate composite shear wall (number: S-DFRP) and the polyethylene terephthalate (PET) -infilled diagonal CFRP corrugated plate-steel plate composite shear wall (number: S-FRP-PET) with adhesive-bolt hybrid connection are introduced. Then, the seismic performances of the four SPSW structures are compared by the quasi-static cyclic test, and the finite element (FE) analysis is conducted to suggest optimized design schemes. The test results demonstrate that the restrained scheme S-FRP-A reduces the absolute values of the maximum out-of-plane deformation in wall plate by 29.67 %, while the schemes S-DFRP and S-FRP-PET achieve reductions of 63.24 % and 69.91 %. The schemes S-DFRP and S-FRP-PET increased the initial stiffnesses of SPSWs by 17.32 % and 30.78 %, where the scheme S-FRP-PET increased the displacement ductility coefficients and cumulative energy dissipation by 30.81 % and 25.44 %. The FE analysis recommends the PET-infilled full CFRP double-layer corrugated plate-steel plate composite shear wall with trapezoidal corrugated sections as the optimized design scheme.

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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.