This paper presents a series of shaking table studies on the friction coefficients between steel and mortar, steel and steel, and wood and stone. The sliding behavior suggests that the characteristics of the materials, such as the hardness and roughness, affect the friction coefficients during sliding motion. For the steel to steel tests, the local material damage changes the contact condition. Plowing of the two surfaces along with heat generated during sliding provided a wide range of friction coefficients. For the steel to mortar tests, the mortar is damaged locally as a result of scraping during the initial sliding, but soon the behavior becomes stable. The friction coefficient is about 0.5 initially and raised to a stable value of about 0.8. Tests of wood columns sitting on a stone base plate exhibit stable friction coefficient of about 0.5, with almost no damage on the base plane.
Friction coefficient steel and concrete steel and steel wood and stone
Peng-Cheng Zhang Takuya Nagae Jason McCormick Masahiro Ikenaga Mika Katsuo Masayoshi Nakashima
Associate Professor, Dept. of Architecture & Civil Engineering, Xiamen University, Xiamen. China Researcher, National Research Institute for Earthquake Science and Disaster Prevention, Hyogo, Japan Assistant Prof., Dept. of Civil and Environmental Engineering, The University of Michigan, Michigan, Graduate Student, Dept. of Architecture and Architectural Engineering, Kyoto University, Kyoto. Japa Disaster Prevention Research Institute, Kyoto University, Kyoto. Japan