Page 99 - Riem-Vol6_nº3

444 IBRACON Structures and Materials Journal • 2013 • vol. 6 • nº 3
Numerical analysis of two pile caps with sockets embedded, subject the eccentric compression load
average compressive strength of concrete was 27.10 MPa while
the tensile strength the tie was equal 479 MPa. The first crack in
the test emerged to a force of 1780 kN and the rupture force ob-
served was 2892 kN. In the numerical model these forces were
1588.30 kN and 2647.70 kN respectively.
Pile cap D was similar to Block B, changing only the area of the steel
bars of the reinforcement. The compressive strength of concrete
was equal to 30.30 MPa and the tensile strength of the bars was
equal to 486 MPa. The first crack presented for the force of 1122
kN and the pile cap rupture occurred for the force of 3222 kN. In the
numerical simulation, the force that originated the first crack was
1097.74 kN and the ruin force observed was 3212.17 kN. In spite of
obtaining good correlation between the cracking and last forces, the
numerical simulation presented substantial differences in relation to
the rigidity of Pile cap D experimentally tested, see Figure [15].
Pile cap F had the same mechanical properties of Pile cap B, how-
ever, changed only its geometric form. The force that provoked the
Figure 12 – Pile cap A, Adebar et al. [7]
Figure 13 – Pile cap B, Adebar et al. [7]
Figure 14 – Pile cap C, Adebar et al. [7]
Figure 15 – Pile Cap D, Adebar et al. [7]
Figure 16 – Pile Cap F, Adebar et al. [7]