JPS605095Y2 - Basic structure of the building - Google Patents

Description

[Detailed description of the invention] This invention relates to the foundation structure of a structure using a foundation pile in which reinforcing material is integrally attached around the upper end of the foundation pile, and more specifically, a donut-shaped flange is integrally attached to the outer periphery of the upper end. The steel pipe fixed to the base pile is fitted to the upper end of the foundation pile after being buried, and a filler is filled between the foundation pile and the steel pipe, so that the foundation pile and the steel pipe are integrally fixed. It concerns the basic structure of the constructed structure.

In consideration of the fact that horizontal force due to earthquakes etc. is applied to the joint between the foundation pile head and the foundation member, conventional methods such as
As shown in Publication No. 045, several reinforcing bars are fixed to the inner surface of a steel pipe and are made to protrude above the steel pipe, and after the steel pipe is fitted to a foundation pile, the reinforcing bars are bent radially to construct a concrete foundation. A foundation structure has been developed and has been put into practical use in some areas, but the work of fixing several reinforcing bars to the inner surface of the steel pipe in sequence is inefficient, and the work described above is difficult after the steel pipes are fitted to the foundation piles on site. The reinforcing bars had to be bent radially in sequence, which had disadvantages such as extremely poor workability and high cost.

The basic structure according to the present invention is a completely new technology developed in view of the drawbacks of the conventional technology.

To specifically explain one embodiment of the present invention using figures, in Figs. 1 to 3, 1 is a foundation pile buried in the ground in advance, and 2 is a foundation pile that is fitted around the pile A donut-shaped flange 3 is integrally welded to the outer periphery of the upper end of the steel pipe 2, and reinforcing ribs 4 are provided at several locations to reinforce the joint between the two.

When constructing the foundation structure according to this invention, as shown in the figure,
After applying the pile cap treatment to the pile 1, a certain annular space is created around the pile 1, and the steel pipe 2 with the flange 3 configured as described above attached to the upper end is fitted onto the pile 1 and fixed, Next, filler 6 such as expandable or non-shrinkable concrete is filled into the entire space inside and outside of the pile 1, steel pipe 2, concrete layer 5, etc. and solidified. They can be integrally fixed together to form the basic structure of a building.

Furthermore, by attaching a flange or reinforcing bar or the like having an inner diameter matching the outer diameter of the pile 1 to the inside of the lower end of the steel pipe 2, it is also possible to construct a receiving cover for filling the filler 6.

As mentioned above, the basic structure of the present invention uses flanged steel pipes, so unlike conventional methods, several reinforcing bars are welded to the inner surface of the steel pipe, and these reinforcing bars are welded before filling with filler such as concrete. This method eliminates the need for radial bending at all, making it possible to obtain a foundation structure with good workability and extremely high strength.

[Brief explanation of drawings]

1 to 3 are explanatory diagrams for constructing the foundation structure of the present application. 1 is a pile, 2 is a steel pipe, 3 is a flange, 4 is a reinforcing rib, and 6 is a filler.

Claims (1)

[Scope of utility model registration request] A steel pipe 2 to which a donut-shaped flange 3 reinforced by reinforcing ribs 4 is integrally fixed to the outer periphery of the upper end is fitted onto the upper end of the foundation pile 1 after burying, and between the foundation pile 1 and the steel pipe 2. A foundation structure of a building, characterized in that a foundation pile 1 and a steel pipe 2 are integrally fixed by being filled with a filler 6.