The seismic performance of buildings depends critically on the stiffness and strength of storey diaphragms. Whilst for modern reinforced concrete or steel structures the connection between floors and lateral resisting members is often assumed as monolithic, timber floors and ceilings in masonry buildings are susceptible to sliding in their supports. In fact, the anchorage of timber beams in masonry walls and intermediate supports relies partly or totally on a frictional type of resisting mechanism. The present work contributes to characterize this behaviour by presenting the results of an extensive experimental programme with cyclic friction triplet tests between mortar and timber units, and between timber and timber units. These were produced to be representative of connection typologies characteristic of pre-modern and contemporary construction periods. Each test was performed under a constant level of contact pressure, which was increased throughout each series to cover a range of normal forces foreseeable in building connections. Other aspects are also discussed, such as the influence of cumulative loading or velocity. The experimental data is made available for public use ( https://doi.org/10.5281/zenodo.3348328 ).

中文翻译：

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砌体建筑木地板连接中砂浆-木材和木材-木材循环摩擦的表征

建筑物的抗震性能关键取决于层隔板的刚度和强度。虽然对于现代钢筋混凝土或钢结构，楼板和侧向抗力构件之间的连接通常被假定为整体式，但砖石建筑中的木地板和天花板容易在其支撑中滑动。事实上，砖石墙和中间支撑中木梁的锚固部分或完全依赖于摩擦类型的抵抗机制。目前的工作通过展示一个广泛的实验程序的结果来表征这种行为，其中包括砂浆和木材单元之间以及木材和木材单元之间的循环摩擦三重测试。这些是为了代表前现代和当代建筑时期的连接类型。每个测试都是在恒定的接触压力水平下进行的，每个系列的接触压力都会增加，以涵盖构建连接中可预见的一系列法向力。还讨论了其他方面，例如累积载荷或速度的影响。实验数据可供公众使用（https://doi.org/10.5281/zenodo.3348328）。