Abstract Eccentrically braced frame (EBF) is a robust structural system designed for seismic application. The design philosophy for EBF is to utilize the link beams to dissipate the earthquake energy. While such system has been proven to provide sufficient stiffness and strength to prevent the structure from collapse, the structural performance in terms of damage and resilience after strong earthquakes is not explicitly considered. In this paper, a novel design method, named the Equivalent Energy Design Procedure (EEDP), is adopted to design the EBF. EEDP is an alternative design procedure for fused structural systems, where engineers can design the structure to achieve the intended performance objectives at different earthquake hazard levels. To evaluate the performance of the EBF, a 5 storey EBF located in Vancouver, British Columbia, Canada is designed using both the EEDP and the Equivalent Static Force Procedure (ESFP) outlined in the 2015 National Building Code of Canada. Detailed nonlinear dynamic analyses were conducted. The results show that the EEDP designed EBF has better performance with lower initial and repair costs at different levels of earthquake shaking intensities.

中文翻译：

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由常规和等效能量程序设计的偏心支撑框架的抗震性能

摘要 偏心支撑框架（EBF）是一种坚固的结构系统，专为抗震应用而设计。EBF 的设计理念是利用连接梁来消散地震能量。虽然这种系统已被证明可以提供足够的刚度和强度来防止结构倒塌，但没有明确考虑强震后的损坏和弹性方面的结构性能。在本文中，一种新的设计方法，称为等效能量设计程序（EEDP），被采用来设计 EBF。EEDP 是融合结构系统的替代设计程序，工程师可以在其中设计结构以实现不同地震危险级别下的预期性能目标。为了评估 EBF 的性能，位于不列颠哥伦比亚省温哥华的 5 层 EBF，加拿大的设计同时使用 EEDP 和 2015 年加拿大国家建筑规范中概述的等效静力程序 (ESFP)。进行了详细的非线性动态分析。结果表明，EEDP 设计的 EBF 在不同程度的地震震动强度下具有更好的性能和更低的初始和维修成本。