Modeling of Friction Characteristics of Elastic Sliding Bearings Based on Loading Test Using Full Scale Specimen

Abstract

The friction characteristic § of fUH− scale elasIic sliding bearings were investigated from 山e results of dynamic tests perft 〕 rmed under sinusoidal and selsmic response loading、 The dependence of frictien coefficient on velgcity ， pressure and load repetition was clarified by sinusoidaUoading tests． Based on the multlple regression analysis of test data， an expressjon fbr evaluating friction coefflcients of elastic sliding beadngs is suggested ． From this ， the time history of friction f ｛)rce that was observ ¢ d in the seismic response loading tests was estimated ． 11ne sirnulated relationships between sliding displacement and shear fbrce showed go 〔 岨 agreement with the test results ． Keywords ： eiastic s ' iding bearing． jii 〃 sca ' e medei ， base isela 'ion ， dep 劭 ぬ 〃 o ¢ 声 c ' ion coefficient 弾 性す べ り支承 ，実大試験体，免震．依存性，摩擦係数

Deriving the slip front propagation velocity with the slip- and slip-velocity-dependent friction laws via the use of the linear marginal stability hypothesis

“…The rate-and-state dependent friction law with the shear stiffness of the contacts can be interpreted as the slip-strengthening behavior [12]. Moreover, the friction law depending on the slip and slip velocity is realized for elasto-and visco-dampers [13,14]. The slip-and slipvelocity-dependences of friction stress is important in geophysical studies [15,16].…”