JPH0412193Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a concrete structure in which the surface of the frame is covered with a lining plate.

In high-speed breeding plants, etc., if the high-temperature liquid sodium coolant leaks due to an accident such as a pipe breakage, steel lining plates are installed on the floor of the structure to prevent the liquid sodium from coming into contact with the concrete of the structure. Covered.

Figure 3 shows a conventional structure of this type, in which the lining plate support metal fittings a and stud anchors b are welded together at the factory, and after they are anchored to the reinforcement reinforcing bars c of the structure on site, the concrete frame d is poured. After the poured concrete has been cured, a heat insulating concrete layer e is placed on its surface, and a lining plate support hardware a welded to the stud anchor b is placed so as to cover the surface of the heat insulating concrete layer e. A steel lining plate f is welded and fixed as a backing metal.

Therefore, in the conventional structure, it is difficult to adjust the level of the lining plate, and the lining plate support metal fittings a and stud anchors b are welded together in a long length at the factory, so it is difficult to adjust the level of the lining plate during pouring of the concrete structure d. On-site work is difficult.

Furthermore, when re-lining the lining plate f, as shown in FIG. Then, the insulating concrete layer e was removed, and the concrete structure d around the stud anchor b, indicated by y, was removed to remove the stud anchor b, and then the stud anchor b and the lining plate support hardware a were integrated. The member is set in the concrete scooping section described above, and concrete is poured around the stud anchor b. Next, after setting the heat insulating concrete layer e, the steel lining plate f is stretched, so it takes a lot of effort and time to replace the lining.

In order to solve these problems, this invention
This is a proposed reinforced concrete structure in which a lining plate is coated on a heat insulating concrete layer layered on a concrete frame, in which the tip of an anchor member fixed to the reinforcing bars of the concrete frame is located on the concrete frame. A reinforced concrete structure characterized in that screw rods protruding from the body surface are connected through flat plates attached to the structure, and the lining plate is fixed through a support member screwed to the tip of the screw rod. It is related to things.

According to the present invention, as described above, in a reinforced concrete structure in which a lining plate is coated on a heat insulating concrete layer layered on a concrete frame, the anchoring member of the supporting member of the lining plate is replaced with a conventional stud anchor. Instead, an anchor member installed on the structure side and anchored to the reinforcing bars of the concrete frame of the structure, and a spiral rod screwed with a support member for the lining plate installed on the lining plate side. By constructing it from divided parts,
It is possible to divide the work on the structure side and the lining plate side, and in this way, the lining work can be separated from the frame work and carried out after the concrete is poured for the same frame, improving workability. It is advantageous in terms of process. Furthermore, since the anchor member anchored to the structure frame is not a long member unlike the conventional method, it does not interfere with concrete pouring or on-site work. Furthermore, since the anchor member is anchored to the reinforcing bars of the concrete frame, the anchor member is firmly anchored in the concrete frame.

Further, since the supporting member of the lining plate is screwed onto the tip of the screw rod connected to the anchor member and protruding toward the surface side of the structure frame, level adjustment during lining construction can be easily performed.

Further, when re-covering the lining plate, first, as in the conventional manner, the lining plate and the supporting members of the lining plate are cut and removed on both sides of the screw rod to remove the heat insulating concrete layer, and then the screw rod is screwed and removed. Since the flat plate and the threaded portion of the screw rod attached to the flat plate are exposed, connect the supporting member of the lining plate to the flat plate via the screw rod,
After the screw rod is screwed to adjust the level of the supporting member of the lining plate, a heat insulating concrete layer is set and the lining plate is welded to the supporting member of the lining plate.

Therefore, according to the present invention, the work of replacing the lining plate can be easily carried out without damaging the concrete of the building frame. Furthermore, since the screw for screwing the support member of the lining plate is connected to the flat plate attached to the tip of the anchor member so as to be positioned on the concrete frame, the pressure receiving area increases and the lining plate The anchoring effect on the structure is increased.

The present invention will be described below with reference to the illustrated embodiments.

In the embodiment shown in FIG. 1, a member in which a flat plate 2 is welded to the tip of the stud anchor 1 constituting the aforementioned anchor member is anchored to reinforcing steel bars 3 of the structure frame, and then concrete 4 for the structure is poured. After curing of the poured concrete 4, nuts 5 are welded on the flat plate 2 at a fixed pitch, and a threaded stud anchor 6 having reverse threads at both ends constituting the above-mentioned screw rod is screwed onto each nut 5. Further, a nut 8 welded to the support member 7 of the lining plate is screwed onto the anchor 6,
By screwing the threaded stud anchor 6, the level of the support member 7 can be easily adjusted, and a steel lining plate 9 is attached to the support member 7, and a heat insulating concrete layer cast on the concrete frame 4 is installed. It is fixed so as to cover 10.

In this way, according to the illustrated embodiment, the level adjustment of the lining plate 9 during construction is easily carried out, and the anchor member of the lining plate 9 is divided into two parts, the stud anchor 1 and the threaded stud anchor 6. This makes it possible to separate the work on the structure side and the liner side, and furthermore, since the stud anchor 1 is not a long member unlike in the conventional lining structure, it does not interfere with concrete pouring or on-site work. do not become.

Furthermore, when reupholstering the lining plate 9, first cut the steel lining plate 9 and the supporting member 7 of the lining plate on both sides of the threaded stud anchor 6 as shown in z, as in the conventional method, and When the concrete layer 10 is removed and the threaded stud anchor 6 is then rotated and removed, the flat plate 2
and the nut 5 is exposed. Next, the integral support member 7 of the lining plate and the nut 8 are connected with the threaded stud anchor 6, and after leveling the support member 7 with the stud anchor 6, the heat insulating concrete layer 10 is installed. Then, the lining plate 9 is welded to the support member 7. Therefore, according to the present invention, there is no need to scrape the concrete frame during the work of replacing the lining plate 9, and the work can be easily performed.

FIG. 2 shows another embodiment of the present invention, in which a nut 12 is screwed onto the tip of a threaded stud anchor 11, with a horizontal collar piece that functions as the flat plate 2 protruding from the outer periphery of the upper end. After anchoring to the reinforcing reinforcing bars 3 of the structure frame and pouring concrete 4 for the structure, and curing the poured concrete 4, a threaded stud anchor 6 with reverse threads at both ends is attached to the nut 12. A nut 8 welded to the support member 7 of the lining plate 9 is screwed onto the tip of the threaded stud anchor 6, so that the level of the lining plate 9 can be easily adjusted.

In the figure, parts equivalent to those of the above embodiment are given the same reference numerals.

[Brief explanation of the drawing]

FIGS. 1 and 2 are longitudinal sectional views showing respective embodiments of the concrete structure according to the present invention, and FIG. 3 is a longitudinal sectional view showing a conventional concrete structure. DESCRIPTION OF SYMBOLS 1... Stud anchor, 4... Concrete frame, 6... Stud anchor with screw, 7... Support member for lining plate, 8... Nut, 9... Steel lining plate, 11... Stud anchor with screw.

Claims (1)

[Scope of utility model registration request] In a reinforced concrete structure in which a lining plate is coated on a heat insulating concrete layer layered on a concrete skeleton, the anchor member is attached to the tip of an anchor member fixed to the reinforcing bars of the concrete skeleton so as to be located on the concrete body. 1. A reinforced concrete structure, characterized in that screw rods protruding toward the body surface are connected through a flat plate with a lining plate connected thereto, and the lining plate is fixed through a support member screwed onto the tip of the screw rod.