JPH0874249A - Processing method for pile head - Google Patents

Abstract

PURPOSE: To provide reinforcements for performing connection with footing- receiving members, brackets, and beams on the periphery of the pile head of a steel pipe pile, and simplify a processing work of the pile head by attaching and fixing the members preliminarily manufactured as half-finished products to the pile head of the steel pipe pile. CONSTITUTION: A pair of half-processing members 1, each of which consists of an arc cap 2 for covering the semi-surface of the peripheral surface of a steel pipe pile (a), a bottom frame 4 projected outwardly from the cap 2, and plural reinforcements 3 projected outwardly from the cap 2, are preliminarily prepared. The half-processing members 1 are attached-fixed to the pile head (b) of the steel pipe pile (a), the outwardly projected reinforcements 3 are arranged on the periphery of the pile head (b), and the bottom frames 4 of the half-processing members 1 facing each other are connected with each other for the bottom frames 4 to surround the periphery of the pile head (b).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating a pile head of a steel pipe pile which will be a support for a jetty.

[0002]

2. Description of the Related Art Conventionally, in order to connect a pile head of a driven steel pipe pile to a structure supported by the steel pipe pile, a bracket is arranged around the pile head with respect to the pile head. At the same time, an iron plate for receiving the footing is arranged so as to be supported by the bracket and the pile head is surrounded.

However, in this pile head treatment method,
Welding work of brackets and footing receiving iron plates is done at the site, as well as work of assembling and dismantling support work in concrete placement of footing, which requires a considerable amount of time. It was
Further, since the processing work is performed near the sea surface, it is easily affected by the sea conditions and the tide level, and there is an inconvenience that the work must be interrupted and waiting, which is one of the causes of delaying the processing.

In view of the above circumstances, the present invention attaches and fixes a member manufactured as a semi-finished product in advance to a pile head of a steel pipe pile, so that a footing receiving member, a bracket, and a beam are provided around the pile head. It is an object to obtain a reinforcing bar for connecting with a pile, and an object thereof is to facilitate the treatment of pile heads.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an arc-shaped cap that covers a half surface of the peripheral surface of the steel pipe pile and an outer side from the cap are formed on the pile head of the steel pipe pile. By attaching and fixing a pair of half-division processing members consisting of a bottom frame protruding toward and a plurality of reinforcing bars protruding outward from the cap, and facing outward around the pile head. A pile head treatment method is provided in which a projecting reinforcing bar is arranged, and the bottom frames of the facing half-divided processing members are connected to each other, and the pile frame is surrounded by the bottom frame. The above problems are solved.

[0006]

In the present invention, the half-splitting member has a reinforcing bar and a bottom frame in advance, and a pair of these half-splitting members are attached and fixed to the pile head, and by this attachment, the circumference of the pile head is surrounded. In addition to the reinforcing bars being arranged in the bottom frame, the bottom frame is arranged around the pile head, and the members such as the reinforcing bar and the bottom frame can be integrally obtained without attaching them individually.

[0007]

EXAMPLES The present invention will be described in detail based on the examples shown in FIGS. In the figure, 1 is a pair of half-divided processing members, and each of the half-divided processing members 1 corresponds to the peripheral surface shape of the pile head b of the steel pipe pile a and has an arc-shaped cap that covers the half surface of the peripheral surface. 2, a plurality of rebars 3 projecting outward from a predetermined height position on the outer surface of the cap 2, and a subordinate of the rebar 3 on the outer surface of the cap 2 and directed outward. The bottom frame 4 has a substantially triangular plate shape. When the pair of half-split processing members 1 are combined, the end faces of the cap 2 and the bottom frame 4 are provided so as to be in contact with each other without a gap, and as shown in FIG. A cylindrical body is formed to cover the entire peripheral surface of the pile head b, and a frame body having a substantially square shape when viewed from above is formed around the pile head b from the bottom frames 4 and 4.

The reinforcing bar 3 of the half-split processing member 1 is welded and fixed to the cap 2, and the bottom frame 4 is also welded and fixed to the cap 2. A plurality of brackets 5 that support the bottom frame 4 are located below the bottom frame 4, and the brackets 5 are also welded and fixed to the lower surface of the bottom frame 4 and the peripheral surface of the steel pipe pile a. The half-split processing member 1 is manufactured in advance in a factory and is brought into the work site in the form of a semi-finished product in which a pair is combined at the work site.

The half-processed member 1 is attached by setting the caps 2 so that they are applied to the pile heads b, and welding is performed from the slits 6 provided in the caps 2 and from the upper and lower edges of the caps 2. Then, the pile head b is attached and fixed, and the end edges of the cap 2 and the end edges of the bottom frame 4 which are in contact with each other are welded to each other, whereby the half-split processing member 1 is formed.
Mutual connection and fixation are performed. In this manner, by attaching and fixing the pair of half-divided processing members 1 to the pile head b, the plurality of reinforcing bars 3 protruding outwardly around the pile head b and the outward protrusions. The bottom frame 4 is arranged. The rebar 3 is attached so as to face a predetermined direction from the cap 2, and the half-split processing member 1 is attached to the pile head b.
By setting it in a predetermined direction with respect to the precast concrete beam formwork c arranged around the steel pipe pile a as shown in FIG. 1, the rebar in the precast concrete beam formwork c Will be connected. Further, the outer edge of the bottom frame 4 is also set to a position where the precast concrete beam formwork c is placed. After placing the precast concrete beam formwork c on the outer edge of the bottom frame 4, the rebar 3 is connected to the rebars in the precast concrete beam formwork c as described above, and the precast concrete beam formwork c In the meantime, the ordinary formwork 7 is attached along the outer edge of the bottom frame 4 and concrete is poured.

[0010]

As described above, according to the method for treating a pile head of the present invention, the pile head of the steel pipe pile is provided with an arc-shaped cap covering the half surface of the peripheral surface of the steel pipe pile and an outward direction from the cap. By attaching and fixing a pair of half-division processing members consisting of a bottom frame that overhangs and a plurality of reinforcing bars that project outward from the cap, and project outwards around the pile head. And a bottom frame of the half-processed member facing each other is connected, and the periphery of the pile head is surrounded by the bottom frame. As a result, the reinforcing bars and bottom frame, which were conventionally installed around the pile heads as individual members, can be easily placed around the pile heads by attaching a pair of half-division processing members. Can be performed in a short period of time, and has an effect of excellent practicality.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of a pile head treatment method according to the present invention from above a steel pipe pile.

FIG. 2 is an explanatory diagram similarly showing one embodiment from the side.

FIG. 3 is an explanatory view showing a mounting state of a half-split processing member in one embodiment.

[Explanation of symbols]

 1 ... Half processing member 2 ... Cap 3 ... Reinforcing bar 4 ... Bottom frame 5 ... Bracket 6 ... Slit a ... Steel pipe pile b ... Pile head

Claims (1)

[Claims] 1. An arc-shaped cap covering a half surface of the peripheral surface of the steel pipe pile, a bottom frame projecting outward from the cap, and a cable extending outward from the cap on a pile head of the steel pipe pile. Attaching and fixing a pair of half-division processing members consisting of a plurality of protruding reinforcing bars, arranging the reinforcing bars projecting outward around the pile head, and facing the bottom of the half-division processing members. A method for treating a pile head, comprising connecting a frame and surrounding the pile head with the bottom frame.