Traditional wooden structures are characterized by the presence of a column base that seems to be floated above the foundation stone. This study used pseudo-static experiments to assess the seismic performance of flat pendulum floating resting columns, focusing on the decay and repair of the wood frame (WF). First, an artificial method was used to simulate fungal decay damage of column-foot joints, and filling reinforcement was applied to the decayed column-foot joints, and second, according to the design method in the Sung dynasty architecture, the Ying-tsaofa-shih (building standards). This study presents the findings of pseudo-static tests that were conducted at Yangzhou University. Three 1:3.52 scaled specimen WFs with flat-pendulum-floating-shelf (FPFS)-typed (Ping-bai-fu-ge) columns, i.e., non-damaged WF (named after NT), considering the damaged WF (named after DF) and strengthening damaged WF (named after DR) with one-way straight mortise-tenon joints (OWSMT) joints were made and subjected to cyclic lateral loads during testing. The properties of the WFs with FPFS columns, such as the failure mode, hysteretic and envelope curves, strength and stiffness deterioration, and energy dissipation, have been studied. Finally, the effects of additional damage and reinforcement measures on the seismic performance of WFs are analyzed and compared with the finite element numerical simulation results. This research shows that damage to the column foot decreases the WF's seismic performance, although filler reinforcement may increase it. The foot and mortise joints are interconnected and interact in the wood frame's seismic stressing mechanism. Foot decay reduces the seismic performance of the foot joint, hence increasing the seismic energy dissipation activity of the mortise joints.

中文翻译：

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历史木结构建筑抗震浮柱机制实验研究

传统木结构的特点是有一个柱基，似乎漂浮在基石之上。本研究采用拟静力实验来评估平摆浮动休息柱的抗震性能，重点关注木框架（WF）的腐烂和修复。首先，采用人工方法模拟柱脚接缝的真菌腐烂破坏，并对腐烂的柱脚接缝进行填充加固；其次，按照宋代建筑中的英草法设计方法， shih（建筑标准）。本研究介绍了扬州大学进行的伪静态测试的结果。三个 1:3.52 比例的平摆浮架 (FPFS) 型 (平摆浮架) 柱标本工作场，即未损坏的工作场 (以 NT 命名)，考虑到损坏的工作场 (以 NT 命名) DF）和用单向直榫榫接头（OWSMT）加固受损的WF（以DR命名），并在测试过程中承受循环横向载荷。研究了带有 FPFS 柱的 WF 的性能，例如失效模式、迟滞曲线和包络曲线、强度和刚度恶化以及​​能量耗散。最后，分析附加损伤和加固措施对WFs抗震性能的影响，并与有限元数值模拟结果进行比较。这项研究表明，柱脚损坏会降低 WF 的抗震性能，尽管填料加固可能会提高抗震性能。脚和榫眼接头在木框架的地震应力机制中相互连接并相互作用。足部腐烂降低了足部接头的抗震性能，从而增加了榫眼接头的地震能量耗散活性。