SU1767043A1 - Method of micro arc anodization - Google Patents

Description

(51) 5 Е 02 D 5/30

STATE COMMITTEE

BY INVENTIONS AND OPENINGS

AT GKNT USSR

IVDD

DESCRIPTION OF INVENTIONS ;;

TO AUTHOR'S CERTIFICATE

one

(21) 4903095/33 (22) 18.01.91 (46) 07.10.92.Byul.No.37 (75) A.L.Gaman, I.F. Tsarikovsky, A.L.Tseitlin

(56) Perley EM, Tsukerman N.Ya. Tubular reinforced concrete piles and shell-wells. L .: Publishing house of literature on construction, 1969, p.43-44 (prototype).

(54) JOINT CONNECTION OF REINFORCED CONCRETE PILES-SHELLS SECTIONS

The invention relates to the construction, in particular to the structures of butt joints of sections of reinforced concrete sheaths.

The known structure of the butt joint of the sections of the pile-shells, comprising flanges fixed at the ends of the pile-shells on the releases of the longitudinal reinforcement rods, each of which consists of shells and radial stiffeners. The flanges are connected using high-strength bolts and nuts.

The known design of the butt joint of piles, selected as a prototype, includes external ledges in the areas adjacent to the joint, exposing the longitudinal reinforcement in the form of outlets that are threaded at the ends and extended beyond the ends of the external ledges. The bearing of the joined sections of the piles is carried out on the ends of the outer ledges. Connection of longitudinal reinforcement with

(57) Use: in construction. SUMMARY OF THE INVENTION: The butt joint of the pile-shell sections contains central projections at the ends of the joined sections and nuts connected to each other by longitudinal reinforcement with threaded ends, and the joint is provided with a pair of coaxial protrusions located outside the butt joint; the gap between the shells with the possibility of fixation to them. 2 Il.

threaded ends are made using couplings.

The aim of the invention is to reduce material consumption, labor costs in the manufacture and installation of a butt joint of sections of reinforced concrete shells.

FIG. 1 shows a butt joint of sections of pile-shells, general view; figure 2 - section bb in figure 1 (in the joint zone).

Butt joint sections of reinforced concrete shells 1 includes external ledges 2 in areas adjacent to the junction. The outlets 3 of the longitudinal reinforcement with threads at the ends are exposed to the height of the outer ledges 2 and removed beyond their ends 4. The coaxially mounted shells 5 are put on the outer projections 2. The supporting of the joined sections occurs on the ends of the 4 outer projections 2, and the outlets of the 3 longitudinal reinforcement with the threads at the ends are passed into the gap between the shells 5 and are attached to them with washers 6 and nuts 7. The length of the outlets 3 of the longitudinal reinforcement with threads at the ends is equal to the sum

Claims (2)

The butt joint of the sections of reinforced concrete piles-shells 1 includes external ledges 2 in areas adjacent to the junction. The outlets 3 of the longitudinal reinforcement with a thread at the ends are exposed to the height of the outer ledges 2 and extended beyond their ends 4. The coaxially mounted shells 5 are worn on the outer ledges 2. The abutting sections are supported at the ends 4 of the outer projections 2, and the outlets 3 of the longitudinal reinforcement with threads at the ends pass into the gap between the shells 5 and are attached to them with washers 6 and nuts 7. The length of the outlets 3 of the longitudinal reinforcement with threads at the ends is equal to the sum