000010324 001__ 10324 000010324 005__ 20141205155715.0 000010324 04107 $$aeng 000010324 046__ $$k2008-10-12 000010324 100__ $$aIkenaga, Masahiro 000010324 24500 $$aFriction Coefficient for Exposed Column Base Design 000010324 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering 000010324 260__ $$b 000010324 506__ $$arestricted 000010324 520__ $$2eng$$aIn the standard base plate connection in steel structures, namely the exposed column base, the shear force is resisted by the combination of anchor bolt shear and friction between the steel base plate and mortal, which is placed just underneath the plate for the purpose of alignment. For the column base design, a static friction coefficient of 0.5 is commonly used. This value, however, was obtained from old test results, and furthermore there is no theoretical justification for the friction mechanism between steel and mortal. This study examines these problems by a series of static tests and dynamic tests. Tests were conducted, with the steel surface and the axial load as the test variables. The test results show that the initial static friction coefficient for steel and mortal is about 0.5, and gradually rises up to 0.8. After that, the coefficient remains very stable regardless of the slip distance. 000010324 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb. 000010324 653__ $$aFriction Coefficient, Exposed Column Base, Shaking Table Test 000010324 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15 000010324 720__ $$aIkenaga, Masahiro$$iNagae, Takuya$$iMcCormick, Jason$$iZhang, Pengcheng$$iKatsuo, Mika$$iNakashima, Masayoshi 000010324 8560_ $$ffischerc@itam.cas.cz 000010324 8564_ $$s500236$$uhttps://invenio.itam.cas.cz/record/10324/files/12-01-0077.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 12-01-0077. 000010324 962__ $$r9324 000010324 980__ $$aPAPER