Four-point-bending experiments on historic quay wall foundation piles; Data underlying the dissertation: "Amsterdam quays under pressure - Modelling and testing of historic canal walls".

The dataset has been compiled as part of the dissertation of M.J. Hemel (2023) entitled "Amsterdam quays under pressure - Modelling and testing of historic canal walls".<br>The mechanical properties of existing spruce foundation piles, retrieved from a historic quay wall at Overamstel in Amsterdam, were studied. To better understand the material properties of historic foundation piles in bending, a series of 6 four-point bending experiments were conducted. An adjustable bending test setup was used in which timber piles were bent by hoist and support slings. The forces were adjusted such that the outer fibre stress between the two forces was consistent, leading to a failure at the weakest cross-section. Measurements of the deflections along the piles and force distribution were taken along the pile length during loading. In addition, biological decay in the outer layer of the timber piles, also referred to as ‘soft shell’, was identified with IML micro-drillings. For two piles (pile 5 and 6) Internal strains were measured by gluing fibre optical wires inside the soft shell of the timber piles. <br>This dataset contains the following:<br>- Bending deflections and forces (Excel format)- Fibre optic measurments and installation details (Text files and Excel format)- IML Micro drilling measurements and IML guide(Text Files and PDF)

本数据集为M.J. Hemel于2023年完成的题为《承压的阿姆斯特丹码头——历史运河墙的建模与测试》的学位论文的配套研究成果。
研究团队针对从阿姆斯特丹Overamstel历史码头墙取回的现存云杉地基桩的力学性能展开了分析。为深入理解历史地基桩的受弯材料特性，开展了6组四点弯曲试验。试验采用可调节弯曲测试装置，通过起重吊索与支撑吊索对木桩施加弯曲荷载，调整荷载使两加载点间的外层纤维应力保持一致，最终使桩体在最弱截面发生破坏。加载过程中，沿桩身长度采集了桩体挠度与荷载分布数据。
此外，通过IML微型钻孔（IML micro-drillings）技术鉴定了木桩外层的生物腐朽现象，该腐朽层也被称为“软壳层”。针对其中2根桩（5号桩与6号桩），通过在其软壳层内部粘贴光纤导线的方式，测量了内部应变。
本数据集包含以下内容：
- 弯曲挠度与荷载数据（Excel格式）
- 光纤测量数据与安装细节（文本文件及Excel格式）
- IML微型钻孔测量数据及IML操作指南（文本文件及PDF格式）