EAN: 9783737604963

BEHAVIOR OF CIRCULAR STEEL TUBE CONFINED UHPC A...

This dissertation reported primarily an assessment of the axially compressive behavior of
circular STCC stub columns based on the previous test results and a developed finite element
model (FEM) in ATENA-3D software for these columns with various concrete strengths. This
provides the starting point for the main experimental investigations presented in this
dissertation. Then the constitutive behavior of UHPC without fiber and with steel fibers
(UHPFRC) was investigated by the compression tests on cylindrical specimens and direct tension
tests on notched prisms  thereby determining the influence of steel fiber content and aspect
ratio on the uniaxial compressive and tensile responses.

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