Buckling-controlled braces for seismic resistance inspired by origami patterns
Buckling-controlled braces for seismic resistance inspired by origami patterns
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DOI：
10.1016/j.engstruct.2023.116771
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发表时间：
2023-11
影响因子：
5.5
通讯作者：
Ya Zhou;Qian Zhang;Yuhang Zhou;Yuting Zhang;Meng Li;Jian Feng;Jianguo Cai
中科院分区：
文献类型：
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作者：
Ya Zhou;Qian Zhang;Yuhang Zhou;Yuting Zhang;Meng Li;Jian Feng;Jianguo Cai
在结构中设置消能装置是抗震设防的有效方法之一。本文提出了一种受折纸启发的新型屈曲控制支撑(O-BCB)作为工程结构的抗震保护技术。对于不同类型的折纸图案，采用了分层设计和分析策略。制作了一种基于Tachi折纸图案的O-BCB，并对其进行了测试和分析，以验证其在循环反复荷载作用下的滞回性能。针对塔池花纹支撑中变形和应力分布不均匀的问题，提出了两种纵向梯度设计方案。为了平衡O-BCBS的承载能力和耗能能力，分析了非刚性折纸图案的实现，包括金字塔、撞击盒和三角形图案。结果表明，O-BCBS可为土木工程领域抗震技术的发展提供有价值的选择。
Equipping energy dissipation devices in the structures is one of the effective methods to resist earthquake disasters. Here, a novel buckling-controlled brace inspired by origami (O-BCB) was proposed as anti-seismic technology for protecting engineering structures. A hierarchical design and analysis strategy was adopted for various types of origami patterns. An O-BCB based on Tachi origami pattern was manufactured, tested, and analyzed to verify the hysteretic performance under cyclic reversed loading. Considering the non-uniform distribution of deformation and stress in the Tachi patterned brace, two gradient design schemes in the lengthwise direction were proposed. To balance the bearing capacity and energy-dissipating capabilities of O-BCBs, the implementation of non-rigid origami patterns including pyramid, crash-box, and triangular patterns were analyzed. Results show that O-BCBs could provide valuable options for the development of earthquake-resistant technologies in the field of civil engineering.