a[mm]/l - Memorial University of Newfoundland DAI

5.1. Introduction
Chapter 5
NUMERICAL EVALUATION
Htgh-strength concrete has a dlfferent behavior than normal-strength concrete. B falls by
cnclung through the vggregarer rerultmg tn a smwth facture surface. whlle normal-
nrength conerete fndr by the aggregate pulltng out d the matnx multlng I" r mugh
tracture surface. This phenomenon can s~gtficanlly affect the structural performance of
concrete marenal ~n many appllcationr. For example. the shear transfer rnechrn~rm ~n
rennforeed concrete rlruclures relies pan~rlly an as,-gate ~nterlociong across the shear
cmckr. Thls mchanlrm will be reduced greatly for high-strength concrete as a result of
le failure mode.
Thnr chapter presents a numerical evaluauon of the test results. The performances
of numerical evaluation am evaluated aganrt Nonh Amencan coder and some Eumpean
codes such as BS-8110 (1985). CEB-FIP (1990). and NS-3473 (1992). The analyrnr wnll
lncludc a cornpanson betwem the ratios of dynamic to stattc tmpact load. The rrauc
punchlng shear rvength capactttes according to the current cade pdmians will be