JP3152849B2 - Joint structure between prong and cut beam - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure between a bulge and a cutting beam which is diagonally joined to the bulge in a mountain retaining work.

[0002]

2. Description of the Related Art For example, when constructing an underground part of a building,
In order to prevent the collapse of the ground, a retaining wall is constructed separately from the building's body, and the retaining wall is supported by a bulge attached to the inside and a girder spanning the bulge. Is done.

[0003] In this case, since a large earth pressure acts on the cut beam through the belly, the cut beam is usually joined almost perpendicularly to the belly so as to reliably support this earth pressure.

[0004]

[0005] However, in special retaining works such as a reverse striking method, there are cases where the cut beams must be joined obliquely to the bulge, and the development of the joining method is strongly desired. I was

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides a joint structure between a bulge and a cut beam, which can join the cut beam at an arbitrary angle to the bulge. The purpose is to:

[0006]

According to the present invention, there is provided a joint structure between a belly and a cutting beam, wherein the cutting beam is joined at a predetermined angle to the belly, and the belly and the cutting beam are joined. A plurality of wedge-shaped liners are interposed between the cutting beams according to the joining angle of the cutting beams with respect to the bulging.

[0007]

【Example】

Embodiment 1 FIG. FIGS. 1 to 4 show an embodiment of a joint structure between a bulge and a cut beam according to the present invention. In the drawings, reference numeral 1 is constructed along a root cut surface to prevent collapse of the ground. The retaining wall 2 is attached horizontally to the inside of the retaining wall 1 and protrudes to support the retaining wall 1.
Diagonally from the upper side, and the ridge wall 2
The cutting beams 4a, 4b, and 4c that support the earth pressure acting on the fins are interposed between the flaring 2 and the cutting beams 3 so as to overlap with each other. Are connecting bolts for connecting the liner 4a and the bulge 2 and the liner 4c and the end plate 3a attached to the tip of the cutting beam 3, respectively. 6 is bridged between the bulging 2 and the cutting beam 3, one end
6a is welded to the bulge 2, the other end 6b is connected to the cutting beam 3 by a connecting bolt 7, and a connecting bar for connecting the bulging 2 and the cutting beam 3, and 8 is a liner 4a, 4b and A fixing bar is attached to both sides of 4c and fixes the liners 4a, 4b and 4b so as not to shift.

The retaining wall 1 is provided with a main pile horizontal sheet pile, a steel sheet pile, a soil column row wall, or the like, and a steel material such as an H-shaped steel is used for the bulging 2 and the cutting beam 3.

Each of the liners 4a, 4b and 4c is formed in a wedge shape so that there is no gap between the belly 2 and the cutting beam 3 according to the joining angle of the cutting beam 3 with respect to the projection 2. Multiple sheets are interposed.

The side surfaces of each of the spacers 4a, 4b and 4c are provided with a concave portion 4d and a convex portion 4e which are fitted to each other so as not to be laterally displaced when interposed between the belly 2 and the cutting beam 3. Are formed. By appropriately increasing or decreasing the number of the spacers 4a, 4b and 4c, the inclination of the cutting beam 3 can be adjusted.

Further, the liners 4a, 4b and 4c
A number of different thicknesses are installed in combination so as to be able to widely correspond to the joint angle with respect to the prong 2.

Embodiment 2 FIG. FIG. 5 shows another embodiment of the joint structure between the belly and the cut beam according to the present invention. In the figure, the cut beam 3 is joined to the side of the belly 2 obliquely from the horizontal direction, The configuration in this case is substantially the same as that of the first embodiment.

[0013]

According to the present invention, the joint structure between the protruding portion and the cut beam is constructed as described above, and the protruding portion and the cut beam that is obliquely connected to the side portion of the protruding portion. Since a plurality of wedge-shaped liners are interposed in accordance with the joining angle of the cut beam to the bulge, even if the cut beam is joined diagonally to the bulge, There is an effect that the erection and the cut beam are securely joined to each other, and that a large earth pressure acting on the retaining wall via the bulge can be reliably supported.

Further, by appropriately increasing or decreasing the number of liners in accordance with the joint angle of the cut beam to the belly, there is an effect that the joint angle of the cut beam to the belly can be freely handled.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a joint showing one embodiment of a joint between a belly and a cut beam according to the present invention.

FIG. 2 is a cross-sectional view of the embodiment shown in FIG.

FIG. 3 is a sectional view taken along line aa in FIG. 2;

FIGS. 4A, 4B, and 4C are perspective views of a liner.

FIG. 5 is a longitudinal sectional view of a joint showing another embodiment of the joint structure between the belly and the cut beam according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Retaining wall, 2 ... Raised, 3 ... Cut beam, 4a, 4b, 4c ... Liner, 5 ... Joint bolt, 6 ... Joint bar, 7 ... Joint bolt, 8 ... Fixed bar.

Claims (1)

(57) [Claims] 1. A wedge-shaped joint formed between a bulge and a cut beam obliquely joined to the bulge, wherein a plurality of liners are formed between the bulge and the cut beam. A joint structure between the bulge and the cut beam, characterized by being interposed.