A Simple Technique to Determine Interface Slip of Stud Connected SCC Girders
Abstract: A simple technique
is proposed to compute interface slip of stud connected steel-concrete
composite (SCC) girders based on the results of a flexure test. The technique
makes use of relative longitudinal displacement of the concrete slab and steel
beam to calculate the interface slip. In the flexure test of a SCC girder, a
cost-effective instrumentation arrangement consisting of mechanical dial gauges
is used to measure the relative longitudinal displacement. Responses measured
from experiments on SCC girders conducted by the authors are used for numerical
implementation and validation of the technique. Alternatively, interface slip
is also evaluated by applying an analytical model which is based on first
principles of mechanics. The values of interface slip computed by using the
proposed technique are found to have close correlation with those of the
analytical model. The effect of edge restraint on slip due to friction between
steel and concrete is also studied.
Keywords: Dial gauges, end
correction, interface slip, slip strain, steel-concrete composite girder, stud
connector
Author: Prakash, A.,
Lakshmanan, N., Anandavalli, N., Madheswaran, C.K., Iyer, N.R., Rajasankar, J.
Journal Code: jptsipilgg120029
