JPH0986867A - Hanger for construction of brace block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the construction work at the time of attaching a brace block to a wale. SOLUTION: A balance type hanger is composed of a hanging balance B1 for upper stage and a hanging balance B2 for lower stage arranged in upper and lower two stages, a sling S1 attached to the hooks provided at both ends of the topside so as to support the hanging balance B1 for upper stage, and a sling S2 capable of being attached to the hooks provided at both ends of the bottom of the hanging balance B1 for upper stage and the hooks provided at both ends of the topside of the hanging balance B2 and the hook provided at the center, respectively, being provided between the hanging balance B1 for upper stage and the hanging balance B2 for lower stage. A user can hang the center position of a brace block easily when hanging a brace block into the specified position at the second stage or onward, using this hanger. Moreover, safe and speedy hanging-in work can be performed without being obstructed by the frame member on the upper stage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspending tool for erection of a hammering block used for mountain brace support, and particularly, for facilitating the erection work when attaching the hammering blocks of the second and subsequent steps to the abdomen. It relates to a balance-type hanging device.

[0002]

2. Description of the Related Art When constructing an underground structure, mountain retaining work has been conventionally performed to prevent the surrounding ground from collapsing. In this mountain retaining work, first, the ground to be excavated between the retaining walls formed of sheet piles and piles is excavated to the minimum ground height necessary for laying the beams. Next, a ridge is attached to the mountain retaining wall in the horizontal direction, and a girder is installed in a state orthogonal to the ridge. And, in order to reduce the bending moment over the belly, the connecting portion between the uprising and the girder is often fitted with a hammering material diagonally from both side surfaces of the girder. Recently, due to a demand for labor saving, the construction method of assembling the fire-punched material each time at the site is not taken, and, for example, as shown in FIG. A technique has been adopted in which the block structure is integrated by welding in advance to form a kind of block structure, and this structure (hereinafter, simply referred to as a fired block) 21 is jointed and fixed to a cross beam 24.

By the way, in the case of constructing the firing block 21 integrated as described above from the second stage onward,
A girder will be installed from one side of the facing mountain retaining wall. That is, as shown in FIG. 7, the flint block and the girder are jointed to the uprising 26 along the horizontal direction of the mountain retaining wall 25,
After having a length that can be held by the cutting beam bracket, the cutting beam 24 is then extended to a required length, and the firing block 21 on the opposite side is suspended and installed at the extended end.

[0004]

However, when this firing block is suspended and erected at a predetermined position after the second stage by a crane, the firing block in the upper stage interferes and the center of gravity of the block cannot be suspended. For this reason, it is inevitable to work in an unstable manner, and during lifting work, the balance is lost, and other objects may come into contact with or collide with each other, or in some cases, they may fall or come off, which is not preferable for safety. Therefore, conventionally, a chain block or the like is separately used to erect the lower firing block at a required position so as to be pulled, but this work is extremely troublesome and takes time. Moreover, since it is necessary to use a chain block or the like in addition to using a crane for hoisting, there is a problem that it is not possible to satisfy the demands for speeding up the erection work and labor saving.

Therefore, in view of the above-mentioned problems of the conventional method of constructing a batting block, an object of the present invention is to provide a structure for facilitating the erection work when mounting the batting blocks of the second and subsequent stages on the abdomen. An object of the present invention is to provide a balance-type hanging device having the following structure, which is simple and can be easily suspended and erected at a required position by bypassing the upper struck block without using a chain block.

[0006]

In order to achieve the above-mentioned object, the suspending tool of the present invention comprises an upper stage suspension balance B1 and a lower stage suspension balance B2, which are arranged in upper and lower stages, and the upper stage suspension balance. Slings S1 attached to hooks provided at both ends of the upper surface for supporting B1 and between the upper suspension balance B1 and the lower suspension balance B2, and both lower ends of the upper suspension balance B1. And a sling S2 that can be attached to the hooks provided at both ends and the center of the upper surface of the lower stage suspension balance B2, respectively.

The sling used here means a chain, a wire, a rope or a band for supporting a load, and the hook means a member such as a shackle for hanging and hanging the sling.

The suspension balances B1 and B2, which are arranged in the upper and lower two stages, are mainly formed by a beam made of H steel. Shackle mounting suspension plates are fixed to both upper and lower surfaces at both ends of the upper balance B1. Further, a shackle mounting suspension plate is fixed to the upper surface of the center and the upper surfaces of both ends of the suspension balance B2 for the lower stage.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be specifically described with reference to the drawings. 1 and 2 are views showing a side surface and a plane of the suspension balance B1 for the upper stage. 4 and 5
[Fig. 3] is a view showing a side surface and a plane surface of a lower balance B2. The illustrated balances B1 and B2 are, for example, 150 × 15
H with dimensions 0x7x10x3400 (unit mm)
It is made of steel beam material.

1 to 6, the reference numerals 5 and 6 are
Upper and lower flanges 1 and 2 at both ends of the beam material described above.
Alternatively, it is a reinforcing plate attached between 3 and 4, and is integrally fixed to the beam by welding.

Reference numerals 7 and 8 denote shackle mounting suspension plates attached by welding so as to vertically project from the upper and lower flange surfaces 1 and 2 at both ends of the beam material constituting the upper stage suspension balance B1. is there. Holes 9 and 10 for passing shackle pins are formed in these plates at right angles to the longitudinal direction of the beam.

Plates denoted by reference numerals 11 and 12 are shackle-mounting hanging plates attached by welding so as to project upward from the upper surface of the central portion of the beam material constituting the lower balance B2 and the upper surfaces of the flanges 3 at both ends. The plates at both ends are provided with holes 13 through which the shackle pins are inserted in the direction perpendicular to the longitudinal direction of the beam, as in the upper suspension balance B1. In the center, a pair of holes 14, 14 for passing the shackle pins are formed in parallel with the longitudinal direction of the beam. Incidentally, reference numeral 15 is a reinforcing plate attached so as to be positioned below the central hanging plate.

As shown in FIG. 7, the lifting device 20 of the present invention.
Connects the left and right slings S2 suspended from the upper suspension balance B1 to the lower suspension balance B2 with shackles attached to the respective suspension plates, and connects the upper suspension balance B1 to the crane via the sling S1 ( It is suspended from a hook (not shown) and used as follows.

A method for suspending and constructing a struck block using the suspender 20 of the present invention by suspending it with a crane between the second stage uprising and the girder will be described. As described above, the hanging device of the present invention is suspended from a hook of a crane (not shown) via a sling S1 made of a chain, a wire, a rope, a belt, or the like before the work. It is hung toward the fire block 21 which is assembled and integrated.
Next, the suspension balance B2 for the lower stage is fixed to the center of gravity of the blow block 21 via the C-shaped clamp 22 as shown in FIGS. It should be noted that attachment fittings such as attachment hooks 23 are attached to the firing block 21 as needed (see FIGS. 10 and 12).

Next, the left and right slings S2 hung from the upper suspension balance B1 are fixed to the mounting holes 14 provided in the suspension plate at the beam center of the lower suspension balance B2 through shackles. In this case, as shown in FIGS. 7 to 9, the upper and lower balances B1 and B2 can be placed in a positional relationship such that they are substantially perpendicular to each other.

Next, as shown by a phantom line in FIG. 8, the slinging block 21 of the present invention is used to hoist the hopping block 21 to hang it on the excavated ground. As described above, since the upper balance B1 and the lower balance B2 are in a positional relationship such that they are substantially at right angles to each other, when the firing block is hung by the crane, the upper beam is evaded and the upper beam is doubled. The hitting block can be easily hung down to a position directly below the eye beam.

Next, the left and right slings S2 are removed from the central suspension plate of the suspension balance B2 for the lower stage, which is fixed to the fired block 21 that has been suspended, and the suspension balance B1 for the upper stage is lifted up. Subsequently, the left and right slings S2 suspended from the upper-stage suspension balance B1 are distributed, and as shown in FIG. 13 to FIG.
Suspend the suspension balance for upper stage B1.

After that, the left and right slings S2 are fixed to the suspension plates 11 attached to the left and right ends of the suspension balance B2 for the lower stage via shackles. Next, as shown by the phantom line in FIG. 13 or FIG. 15, the lifting device 20 of the present invention is lifted by a crane and moved immediately below the second-level beam to move the firing block 21 to the second-stage belly. The work is suspended between the rise 26 and the girder 24, and the joint work is completed.

[0019]

As described above, when the hoisting tool of the present invention is used, the center of gravity of the batting block can be easily hung when the batting block is hung and erected at a predetermined position after the second stage by a crane. be able to. In addition, the suspending work can be performed safely and speedily without being hindered by the erection material on the upper stage. Therefore, according to the present invention, it is not necessary to use a chain block or the like only with a crane, and it is possible to satisfy the demands for speeding up the erection work and labor saving.

[Brief description of drawings]

FIG. 1 is a side view of a suspension balance for an upper stage used in a suspension of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a view on arrow A of FIG.

FIG. 4 is a side view of the lower stage suspension balance used in the suspension of the present invention.

FIG. 5 is a plan view of the same.

FIG. 6 is a view on arrow B of FIG.

FIG. 7 is a view showing a usage state of the lifting tool of the present invention, and an explanatory view of a situation in which the ground-integrated firing block 21 is hung on the excavation surface.

FIG. 8 is a plan view of the same.

9 is a sectional view taken along line AA of FIG.

[Fig. 10] Suspended balance B2 for lower stage and flint block 21
The figure showing the state where and were fixed via a C-shaped clamp 22.

11 is a sectional view taken along line CC of FIG.

FIG. 12 is a view showing a state in which a mounting hook 23 is attached to the flint block 21.

FIG. 13 is an explanatory view of a situation in which the slinging block 21 is fixed to a predetermined erection position by the lifting device of the present invention.

FIG. 14 is a plan view of the same.

15 is a cross-sectional view taken along the line BB of FIG.

FIG. 16 is a perspective view showing an example of a flint block.

[Explanation of symbols]

 B1, B2 Balance S1, S2 Sling 1,2,3,4 Flange 5,6,15 Reinforcing plate 7,8 Hanging plate 9,10,13,14 holes 11,12 Hanging plate 20 Hanging tool 21 Whipping block 22 C type Clamp 23 Mounting hook 24 Girder 25 Yamadome wall

Front page continuation (72) Inventor Takuya Tamura 1-6-5 Nihonbashihonmachi, Chuo-ku, Tokyo Marufuji Sheet Pile Co., Ltd. (72) Inventor Yumiko Iwashita 1-6-5 Nihonbashihonmachi, Chuo-ku, Tokyo Marufuji Sheet Inside Pile Co., Ltd.

Claims (4)

[Claims] 1. A suspension balance B1 for the upper stage, which is arranged in upper and lower two stages.
And a lower stage suspension balance B2, slings S1 attached to hooks provided at both ends of the upper surface of the balance B1 for supporting the upper stage suspension balance B1, the upper stage suspension balance B1 and the lower stage suspension balance B2. And a sling S2 which is provided between the hooks provided at both ends of the lower surface of the upper suspension balance B1 and the hooks provided at both ends of the upper surface and the center of the lower suspension balance B2. Hanger for erection of flint block. 2. The suspender for erection according to claim 1, wherein each of the suspension balances B1 and B2 is mainly formed of an H steel beam. 3. The hanging tool for installation according to claim 1, wherein the hanging tool is a shackle attachment member capable of hanging by hanging a sling. 4. A suspension plate is fixed to the upper and lower surfaces of both ends of the suspension balance B1 for the upper stage, and a suspension plate is fixed to the upper surface of the center and the upper faces of both ends of the suspension balance B2 for the lower stage. The hanging tool for installation according to claim 1, 2 or 3.