Abstract Research on low-damage systems has been significant in recent years. These systems combine post-tensioning, which provides self-centring; and replaceable devices, which provide energy dissipation. Research by the University of Canterbury, New Zealand, on low-damage bridge piers has been used and developed into a real structure: the Wigram–Magdala Link Bridge. This is believed to be the first bridge in New Zealand, and possibly worldwide, to adopt such a system. This paper uses the Wigram–Magdala Link Bridge as a case study to describe the low-damage details adopted. The paper will then discuss the opportunities which exist for future incorporation of low-damage detailing on bridge structures. For example, the unique features of controlled damage, excellent post-damage performance and ease of repair offer the potential for a change in seismic design philosophy. The low-damage connections provide an opportunity to permit controlled and easily repairable damage to occur in a lower return period earthquake than currently allowed. This shift in seismic design philosophy enables a more efficient use of materials, while still preventing collapse of the structure.

中文翻译：

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Wigram-Magdala Link Bridge：低损坏细节实现更高效的抗震设计理念

摘要 近年来，对低损伤系统的研究具有重要意义。这些系统结合了后张紧装置，可提供自动定心功能；以及提供能量耗散的可更换装置。新西兰坎特伯雷大学对低损坏桥墩的研究已被使用并发展成一个真正的结构：Wigram-Magdala Link Bridge。这被认为是新西兰乃至全世界第一座采用这种系统的桥梁。本文使用 Wigram-Magdala Link Bridge 作为案例研究来描述所采用的低伤害细节。然后，本文将讨论未来在桥梁结构上加入低损伤细部的机会。例如，受控损坏的独特功能，出色的损坏后性能和易于维修为抗震设计理念的改变提供了潜力。低损坏连接提供了一个机会，允许在比目前允许的更低的重现期地震中发生可控且易于修复的损坏。抗震设计理念的这种转变可以更有效地使用材料，同时仍能防止结构倒塌。