Buckling-controlled braces for seismic resistance inspired by origami patterns
2023; Elsevier BV; Volume: 294; Linguagem: Inglês
10.1016/j.engstruct.2023.116771
ISSN1873-7323
AutoresYa Zhou, Qian Zhang, Yuhang Zhou, Yuting Zhang, Meng Li, Jian Feng, Jianguo Cai,
Tópico(s)Advanced Sensor and Energy Harvesting Materials
ResumoEquipping 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.
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