000K utf8 1100 2024$c2024-05-03 1500 eng 2051 10.57892/100-50 3000 Aji, Hendrawan Diandaru Bayu 3010 Heiland, Till 4209 The data contains the dynamic impedance and compliance surfaces for twin adjacent surface foundations under synchronous and asynchronous external harmonic loads. The impedance and compliance surfaces are MATLAB interactive figures (*.fig). The impedances are also provided as text files. 4950 https://doi.org/10.57892/100-50$xR$3Volltext$534 4961 https://opendata.uni-kiel.de/receive/fdr_mods_00000050 5051 500 5051 620 5550 Impedance function, twin foundations, soil-structure interaction, hybrid BEM-FEM, asynchronous harmonic load