KONG Gang-qiang, ZHOU Hang, LIU Han-long, et al. Research on mechanical properties of X-section cast-in-place concrete pile under arbitrary direction lateral load(II): Section stress distribution[J]. 2012, 33(S1).
KONG Gang-qiang, ZHOU Hang, LIU Han-long, et al. Research on mechanical properties of X-section cast-in-place concrete pile under arbitrary direction lateral load(II): Section stress distribution[J]. 2012, 33(S1).DOI:
Base on the moment of inertia equation and sectional parameters
the X-section cast-in-place concrete pile (referred as to XCC pile) stress distribution and stress concentration equations under different directions lateral load were built; and influenced factor
such as
sectional parameters were analyzed. In order to comparatively analyze
the characteristics of circular piles and square pile with the same concrete amount or the same perimeters were carried out. Finally
one of optimized X-section type was proposed
which can be used for XCC pile design reference. The results show that
the maximum stress distribution increased with the decreasing of outsourcing diameter
the decreasing of open arc angle
and the increasing of open space with the same area. The maximum stress distribution increased with the decreasing of outsourcing diameter
the increasing of open arc angle
and the increasing of open space with the same perimeter. In this paper
0.5-0.7 m outsourcing diameter
0.1-0.2 m open space
and 110o-130o open arc angle can be chosen for recommended section parameters.