GB114221A - Improvements relating to Reinforced Concrete Piles. - Google Patents

Abstract

114,221. Stewart, W. J., and Woolcock, J. April 13, 1917. Piles.-In an extended tube pile, the normal reinforcing units comprise longitudinal rods provided with means for obtaining anchorage at the bottom of the pile and extended at their upper ends to receive continuation lengths of transverse bracing, which are formed as independent cagelike sections slidably movable into position on the reds. These cage-like sections comprise two or more transverse links b<1>, Fig. 2, wound to encircle independently some or all of the longitudinal rods, connected by helical windings c' the pitch of which is maintained by two or more thin rods g; the fixed transverse bracing on the lower part of the pile is of similar form. The main longitudinal reinforcing-rods may have inclined lower portions with simple or looped hooked ends a<3>, Figs. 9 and 10, to engage resiliently a ledge d' on the pile shoe; an annular projection d<2> may also be provide to prevent accidental disengagement. Where the lower end of the pile is in firm ground and no transverse bracing is required at this part, two or more of the main longitudinal reinforcing-rods <a>, Fig. 7, are connected to depending rods i by eye-links l and binding o; the lower ends of the rods i extend to or adjacent to the pile shoe and are inturned and connected to plates p, Fig. 6. The Provisional Specification also states that the longitudinal reinforcing-rods may be attached to an anchor with two or three preferably hinged prongs for engaging the shoe.