A bracket complex is a type of bearing system located on the top of a column and transmits the vertical load of the roof to the column. Bracket complexes are often used in Buddhist temples and Shinto shrines constructed using traditional timber structure. The bracket complex, being a combination of timber blocks and beam like elements, is said to have a positive effect on the seismic performance of traditional timber structures. However, this hypothesis has not been theoretically or quantitatively proven. The aim of the present paper is to clarify the dynamic performance of the bracket complex. The investigations of the present study were performed through experiments and analysis. Shaking table tests were conducted on four different types of bracket complexes. The stiffness, natural frequency, and load-displacement relationships were determined. The results were compared with those obtained by static lateral loading tests on the same specimen by the authors in previous studies. Earthquake response analyses were carried out by applying a structural model proposed by the authors based on the results of static lateral loading tests. The results of the analysis and shaking table tests are compared, and the validity of the proposed structural model is discussed.

中文翻译：

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日本传统木结构中使用的支架配合物的动态性能。

支架组合是位于柱子顶部的一种轴承系统，可将屋顶的垂直载荷传递到柱子上。括号配合物通常用于使用传统木材结构建造的佛教寺庙和神社中。据说支架组合物是木块和梁状元件的组合，对传统木结构的抗震性能具有积极影响。但是，该假设尚未得到理论或定量的证明。本文的目的是阐明支架复合物的动态性能。本研究的研究是通过实验和分析进行的。对四种不同类型的支架组合物进行了振动台测试。确定了刚度，固有频率和载荷-位移关系。将结果与作者先前在研究中对同一样本进行的静态侧向荷载测试获得的结果进行了比较。地震响应分析是通过应用作者基于静态侧向荷载试验结果提出的结构模型进行的。比较分析结果和振动台试验结果，并讨论了所提出结构模型的有效性。