Three-dimensional analysis of two-pile caps

In all numerical models prismatic compressive struts were formed. At the bottom surface of the column stress flow was divided equally in two halves, proving [1] statement that it is correct to consider that half pile cap-column interface receives half of the column’s forces. Besides, all compressive stresses have F i g u r e 3 D e t a i l s o f p i l e s r e i n f o r c e m e n t b a r s ( a ) m o d e l s 1 , 2 , 3 e 4 ; ( b ) m o d e l 5