JPH08333719A - Wall handrail and setup method thereof - Google Patents

Abstract

PURPOSE: To improve workability by threading at least an interval between a floor slab top face and a wall handrailing block of an anchor bolt to be erected on a floor slab, screwing an adjusting plate with an internal thread or a tapped hole in this threading part, and anchoring it in a state that the wall handrail block is supported by this adjusting plate. CONSTITUTION: At the time of setting up a wall handrail, an adjusting plate 5 with a tapping hole to be threaded by internally threading or screwing-in is properly screwed in a threading part of an anchor bolt 3 erected on a floor slab 1. After a horizontal level is adjusted aright, a wall handrail block 2 is mounted on the floor slab, performing height and vertical adjustments, and then concrete is placed in an interval between a top face of the floor slab 1 and the wall handrail block 2. With this constitution, easy and safety execution is made achievable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall balustrade installed on a reinforced concrete road bridge and other structures (hereinafter abbreviated as a roadside, etc.) and a method of installing the same.

[0002]

2. Description of the Related Art FIG. 4 shows an example of a conventional structure in which a precast wall balustrade is connected and fixed to a floor slab of a road bridge or the like. The base side of the anchor bolt 16 is embedded in the floor slab 1 in an upright state, and the anchor bolt 16 is fixed by lowering it from above while covering the bolt insertion hole 12a of the wall balustrade block 12 to the anchor bolt 16. Adjustment bolts 13 and 14 are provided to adjust the installation height and verticality of the balustrade block 12. One of the adjusting bolts 13 is screwed and adjusted from the bottom surface of the wall balustrade block 12, and the other adjusting bolt 14 is long and vertically protrudes into a bolt insertion hole 12b penetrating to the bottom of the wall balustrade block 12. ing. At this time, since the bottom side of the wall balustrade block 12 has a female thread structure, the height and verticality are adjusted by the degree of screwing of the adjusting bolt 14. Even in the case of other structures in which the bolt insertion holes are provided in the entire length in the height direction of the wall balustrade block 12, the height adjustment at the time of installation is almost the same operation, and the adjustment operation is performed on the bottom side of the wall balustrade block 12. There is.

[0003]

The conventional structure as described above requires labor and skill to adjust the height and the verticality. It is difficult to accurately lower the bolt insertion holes of the wall balustrade block to the anchor bolts that are embedded in the floor slab in advance, which requires skill. Further, in the structure in which the fastening bolts are inserted into the upper and lower holes communicating between the wall balustrade block and the floor slab, the fastening bolts cannot be inserted unless the holes are accurately aligned, and the work of inserting and tightening the fastening bolts is troublesome. In particular, it is difficult to insert the adjusting bolt from the bottom surface of the wall balustrade block in the overhead work, and there is a difficulty in leveling. There are also risks. Therefore, in the present invention, a structure and a construction method capable of easily, accurately and safely installing a wall balustrade were examined.

[0004]

The present invention has been made for the purpose of eliminating the above-mentioned difficulties in constructing a wall balustrade, and is characterized by a wall balustrade that is erected and fixed on a floor slab such as a road bridge. For the anchor bolts installed upright on the floor slab side, screw at least between the floor slab upper surface of the anchor bolts and the wall balustrade block, and screw an adjustment plate having female threads or tapping holes into this threaded portion. The wall balustrade which is fixed while the wall balustrade block is supported by the adjusting plate. In this structure, it is preferable to provide a recess for receiving the adjustment plate on the bottom surface of the wall balustrade block. The surfaces of the recess are designed to form the same horizontal plane.

This wall balustrade installation method is such that at least the base side of an anchor bolt having a screw between the floor slab top surface and the wall balustrade block is buried on the floor slab side to which the wall balustrade block is erected and fixed, and the screw portion of the anchor bolt is installed. On the other hand, it is characterized in that the wall balustrade block is concretely fixed to the floor slab while the female balustrade block or the adjusting plate having a tapping hole is screwed into the supporting position of the wall balustrade block and the wall balustrade block is supported by the adjusting plate. And

[0006]

According to the present invention, when installing a wall balustrade, an adjusting plate having a tapping hole to be threaded by a female screw or a screw is appropriately screwed into a threaded portion of an anchor bolt erected on a floor slab to horizontally level. After adjusting the level of, you can adjust the height and vertical just by placing the wall balustrade block on it.
Construction is completed simply by solidifying it with concrete.
Fine height adjustment and vertical fine adjustment of the wall balustrade are also possible by rotating the adjustment plate from the side. If the level of the adjustment plate contact surface of the recess is adjusted, the design work can be performed simply by previously determining the position of the adjustment plate.
When suspending the wall balustrade block from above and lowering it from above, it is possible to maintain a predetermined working interval between the floor slab and the wall balustrade block, and it is easy to bend long anchor bolts, so the bolt insertion hole is set upright on the floor slab. It is easy to insert into the anchor bolt, and the insertion work becomes easy. Further, even if the block is accidentally dropped during the work, the safety is ensured for the worker because it stops at the adjustment plate.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a bolt insertion hole 2a provided along the entire height of a standing wall of a wall balustrade block 2, and a bolt insertion hole also provided in a fastening portion 7 provided on the side of a road for maintaining a firm fixation. 7a is provided. Anchor bolts 3a and 3b penetrating the two bolt insertion holes 2a and 7a are planted on the floor slab 1 side. The anchor bolts 3a and 3b can hold a predetermined work interval between the floor slab and the wall balustrade block when suspending the wall balustrade block from above, and the long anchor bolts can be bent easily. The anchor bolts 3a, 3b can be easily attached to the bolt insertion holes 2a, 7a, and the wall balustrade block can be easily installed. In this respect, in the conventional structure shown in FIG. 4, it is difficult to provide an appropriate working interval between the floor slab and the bottom surface of the wall balustrade block suspended above the anchor bolt in the bolt insertion hole. It is different from that it was difficult and dangerous to call. Anchor bolts 3a and 3b have a floor slab 1 on the top and a wall balustrade block 2 at the base.
The space between them is a screw 4, and adjusting plates 5, 5 having a female screw are screwed into this screw 4 portion. In the adjustment plate 5, in this example, a lower nut 5a is screwed into a screw 4 portion, and an upper plate portion 5b is inserted into the anchor bolt 3a in a free state. The presence of the adjusting plate 5 enables vertical adjustment of the height of the wall balustrade block, and even if the block accidentally falls during the work, the block stops at the adjusting plate 5 so that the worker's safety can be secured.

As described above, while the adjustment plates 5, 5 are held with respect to the anchor bolts 3a, 3b, the adjustment plates 5, 5 are positioned while rotating the nuts 5a, 5a to appropriate positions to perform height and vertical adjustments. . Next, the anchor bolts 3a, 3b
After fixing the upper part of the nut with a nut, when concrete is placed between the upper surface of the floor slab 1 and the wall balustrade block 2 to complete the solidification, the wall balustrade can withstand impact.

FIG. 2 shows another embodiment of the present invention. In this case, the anchor bolt 3a is short because the slack 2b is provided on the wall balustrade block 2 side. The effect of providing the slime 2b is that the wall balustrade block 2 can be easily installed. Also in this example, the adjusting plates 5, 5 are held by the anchor bolts 3a, 3b, but in this case, the adjusting plates 5, 5 have a structure having tapping holes. The bottom surface of the wall balustrade block 2 is provided with a recess 6 for receiving the adjustment plate 5 as seen in FIG.
The presence of this concave portion allows the adjustment plate to be adjusted accurately by making the concave portion 6 a smooth surface with a mold, even if there are irregularities on the bottom surface when the wall balustrade block is manufactured.

[0010]

As described above, according to the present invention, when the wall balustrade is installed, it is easy to insert the bolt insertion holes of the wall balustrade block, which are lowered from above, into the anchor bolts erected on the floor slab, which facilitates the insertion work. , In addition, insert an adjusting plate having a female screw or a tapping hole into the threaded portion of the anchor bolt,
The height and vertical can be adjusted simply by placing a wall balustrade block on it, and the construction can be completed simply by solidifying it with concrete, so fine adjustment of the height and vertical becomes easy, and the efficiency of construction and safe construction can be improved. Became possible.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an installation method according to an embodiment of the present invention.

FIG. 2 is a sectional view of a wall balustrade according to another embodiment of the present invention.

FIG. 3 is a bottom perspective view of a wall balustrade block.

FIG. 4 is a cross-sectional view showing an example of installation of a conventional wall balustrade.

[Explanation of symbols]

 1 Floor slab 2 Wall balustrade block 2a Bolt insertion hole 3a Anchor bolt 3b Anchor bolt 4 Screw 5 Adjustment plate 5a Nut 5b Plate portion 6 Recess 7 Tightening fastening portion 7a Bolt insertion hole

Front page continuation (72) Inventor Hidenori Harada 7-10 Foundry-cho, Hofu-shi, Yamaguchi Prefecture (72) Inventor Toyo Nishikori 1-6-24 Kokukei, Hofu-shi, Yamaguchi Prefecture Inventor Shinichi Kakuda Kuwayama, Hofu-shi, Yamaguchi Prefecture 2-8-12 (72) Inventor Mitsuo Saito 2-3-3, Hagichu, Ota-ku, Tokyo -406 (72) Inventor Yukio Miyagawa 630, Kaita, Ochiai-cho, Maniwa-gun, Okayama 1 Landes Co., Ltd.

Claims (2)

[Claims] 1. In an anchorage erected on the floor slab side in a wall balustrade that is erected and fixed to the floor slab of a road bridge or the like,
A screw is provided between at least the floor slab upper surface of the anchor bolt and the wall balustrade block, and an adjustment plate having an internal thread or a tapping hole is screwed into the threaded portion, and fixed while the wall balustrade block is supported by the adjustment plate. The balustrade on the wall. 2. A wall balustrade block is embedded at least on the base side of an anchor bolt having a screw between the top surface of the floor balustrade and the wall balustrade block on the floor slab side to which the wall balustrade is erected and fixed, and to the threaded portion of the anchor bolt. An installation method of a wall balustrade, characterized in that an adjustment plate having a female screw or a tapping hole is screwed into a supporting position of and the wall balustrade block is concretely fixed to the floor slab while the wall balustrade block is supported by the adjustment plate. .