JPH0511181B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a construction method for a heat storage tank.

``Prior art and problems to be solved by the invention'' Conventional heat storage tanks are constructed by placing reinforcing bars on the peripheral wall and ceiling after constructing the floorboards, assembling a formwork, pouring concrete into the formwork, and after it hardens. The formwork was dismantled at
It was constructed by insulating and waterproofing the interior by spraying it on-site.

However, in the conventional construction method mentioned above, the work environment is extremely poor because the assembly of the formwork, the dismantling of the formwork as a post-process, insulation, waterproofing construction, etc. are all carried out in a closed space, and the work environment is extremely poor, as well as the movement of equipment and people. It was difficult and the work efficiency was poor, and there were also problems in terms of work safety, such as the accumulation of harmful gases and falling equipment.

In addition, since insulation and waterproofing work is done on-site,
The accuracy of construction depends on the skill of the builder, resulting in variations in quality, which has resulted in numerous complaints about heat storage tank insulation material peeling off, falling, and water pollution.

"Means for Solving the Problems" In order to solve the above-mentioned conventional problems, the present invention has the following features:
The inner surface of the heat storage tank is assembled using prefabricated insulation panels without the use of any supports such as shoring, and this is used as a formwork and integrated with the poured concrete to use supports. In addition to making it possible to work safely and efficiently in a wide open space without requiring any post-processes such as formwork dismantling work or insulation/waterproofing work in an internal closed space, it is also possible to work safely and efficiently in a wide open space. By using prefabricated, waterproof, and formwork construction using factory-processed insulation panels, a uniform quality finish can be achieved, and maintenance management is easy without causing insulation material peeling, falling, or water pollution. This paper proposes a rational construction method for heat storage tanks that also reduces running costs.

``Example'' Below, an example of the present invention shown in the drawings will be described. The constructed work floor 1 is used as an installation surface, and the peripheral wall portion (wall and Install it at a position corresponding to the inside and outside surfaces of the pillar).

The reference frames 2, 2' are made of angle steel material or the like with horizontal upper surfaces, and as shown in FIG. It is attached to the support bolt 5 with a double nut 6 so that the height can be adjusted freely, and by adjusting the tightening position of the nut 6, horizontal leveling and positioning adjustment to a predetermined height are performed.

Floor reinforcing bars 7 are arranged on the work floor 1 as shown in Fig. 1, and inner and outer reference frames 2, 2' are arranged.
In between, reinforcing bars 8 for the peripheral walls of walls and columns are arranged, and in this state, as shown in Fig. 2, concrete is poured on the work floor 1 to create a pressure floor 9, and a floor plate 10 is placed on top of this. Lay down.

The floor plate 10 is made of a board with pressure resistance and corrosion resistance such as FRP, and a heat insulating material 11 is provided on the bottom of the plate.
and place it on top of it.

Next, as shown in FIG. 3, the heat insulating panel 12 is assembled on the reference frame 2, and the formwork panel 13 is assembled on the reference frame 2', and the two are tightly connected by a separator 14 with turnbuckles to separate them from walls and columns. Insulation, waterproofing, and formwork construction for surrounding walls.

As shown in FIGS. 7 and 9, this heat insulating panel 12 is provided with lattice-shaped reinforcing ribs 12a on the back surface.
It is made of a rectangular plate made of FRP or the like having pressure resistance and corrosion resistance, and a heat insulating material 12b is bonded to the back surface of the rectangular plate.

Insulating panels 12, 12 mutually and insulating panels 12
Bolts are used to connect the frame 2 and the reference frame 2, and U-clip-shaped clamping clips 15 as shown in FIGS. to ensure waterproofness.

This clamping clip 15 is attached to the heat insulating panel 12.
In the case of a soft elastic plate such as FRP, the U-clip is configured so that it can be tightened by surface contact, since the contact part is indented by line contact. An arm 15b is provided, and a pin 15c is fixed to the rotating arm 15b.
is inserted into the hole formed in the ribs 12a, 12a of the heat insulating panel 12, and the clamping piece 15a is rotated to clamp and press the ribs 12a, 12a via the packing material 16.

The formwork panels 13 are assembled in a conventional manner, but when two or more heat storage tanks are installed in succession, the heat insulation panels 12 are assembled in place of the formwork panels 13 on adjacent wall sections.

For the formwork panel 13, the separator 14 is clamped to a thick piece using a cone as in the past, and for the insulation panel 12, the separator 14 is clamped to the 12th to 14th pieces.
As shown in the figure, a joint nut 17 at the end is connected by a pin 19 to a pair of connecting plates 18 attached to the intersection or joint of the ribs 12a.

In addition, when two or more heat storage tanks are installed in succession, a communication pipe 20a, a ventilation pipe 20b, and a drain pipe are installed between adjacent tanks.

Fig. 15 shows the attached state of a large-diameter communication pipe 20a.The communication pipe 20a is preferably made of FRP and has a flange 20' integrally provided at one end, or a separately molded FRP pipe. A flange 20' is bonded to one end, the other end is inserted into a through hole 21 formed in the opposing heat insulating panels 12, 12, and the flange 20' is bonded to the heat insulating panel 12 with an adhesive.

Next, the communication pipe 2 protrudes from the through hole 21 on the other side.
A pair of accessories 2 in the form of a ring with an L-shaped cross section divided into two are placed on the outer periphery of the other end of 0a and on the heat insulating panel 12.
2 and 22 are glued together with adhesive, and a steel band 23 is wrapped around it. A groove-shaped holding fitting 25 having a tightening bolt 24 at one end is attached between both ends of the communication pipe 20a, and the steel band 23 and While tightening the tightening bolts 24 alternately,
The accessories 22, 22 are firmly fixed and reinforced against later concrete pouring.

In addition, FIG. 16 shows the installation state of a small-diameter ventilation pipe 20b (the same applies to the drain pipe).This ventilation pipe 20b is similarly made of FRP, has a flange 20' at one end, and is inserted into the through hole 21. After that, an accessory 22 consisting of a ring with an L-shaped cross section is attached to the end thereof and adhered to the end and the heat insulating panel 12 with adhesive, and in this state, a tightening cup 26 is attached to one end. A bolt 28 secured with a nut 27 is inserted through this, and this tightening cup 26 is attached to the flange 20' on one side.
In this state, attach a similar tightening cup 26 to the end of the bolt 28 on the other side, and attach it to the accessory 22.
and tighten the nut 27 on the other side to reinforce both ends of the communicating pipe 20a against subsequent concrete pouring.

Next, we move on to heat insulation and form work for the ceiling, and as shown in Figure 7, we first fix the lower steel material 29 such as an angle to the upper end of the assembled heat insulation panel 12, and then fix the lower steel material 29, such as a groove mold, on top of it. The steel material 30 is fixed.

Then, similar heat insulating panels 31 of the wall portion are fixed to the lower steel material 29 with bolts or the like, and the ceiling portion is lined in series with the heat insulating panels 12 of the wall portion while sequentially joining the heat insulating panels 31 to each other.

As shown in FIG. 4, a supportless formwork plate 32 having pressure resistance, such as a deck plate, is placed on top of the upper steel material 30, and ceiling slab reinforcing bars 33 are arranged thereon.

After completing the construction of the formwork for the peripheral wall and ceiling in this way, as shown in FIG. A heat insulating and waterproof tank consisting of a heat insulating panel 12 integrated with concrete is formed on the inner surface of the tank 34.

After the concrete hardens, the outer formwork panel 13 is dismantled to complete the construction. Therefore, no post-construction work will be done inside.

"Effects of the Invention" As described above, according to this invention, a pressure-resistant floor is created by arranging floor reinforcing bars and peripheral wall reinforcing bars on the installation surface, and after pouring concrete on the floor, performing insulation construction. the process of assembling a heat insulating panel inside the reinforcing bars of the peripheral wall and assembling a heat insulating panel or formwork panel on the outside; arranging the heat insulating panel on the ceiling and installing a pressure-resistant formwork plate above it; , consists of the process of arranging slab reinforcing bars on this pressure-resistant formwork plate, and the process of pouring concrete into the surrounding walls and ceiling, so there is no need for any work inside closed spaces, and the construction is always open. In addition, construction can be carried out in a comfortable space without the need for temporary equipment such as shoring, and the work environment is good as equipment can be carried in and out, workers can move freely, etc., and internal insulation and waterproof tanks can be installed at the same time as building the frame. , there is no post-process such as internal formwork dismantling or insulation construction, and construction can be streamlined to improve construction efficiency and ensure work safety.

Furthermore, since the inner surface insulation, waterproofing, and formwork are prefabricated by assembling factory-processed insulation panels, a uniform quality finish can be achieved, and insulation can be maintained without peeling, falling, or water pollution. It becomes possible to simplify management and reduce running costs.

[Brief explanation of drawings]

Figures 1 to 5 are longitudinal sectional front views showing the construction state of this invention in the order of steps, Figure 6 is a partial perspective view showing the assembled state of the heat insulation panel, and Figure 7 is a diagram showing the configuration of the reference frame portion and the configuration of the ceiling portion. 8 is a perspective view showing the assembled state of the inner heat insulating panel according to the present invention, FIG. 9 is a vertical sectional view of the wall portion, and FIG. 10 is a plan view of the clamping clip used in the present invention. Fig. 11 is a longitudinal sectional view showing the same state of use, Fig. 12 is a longitudinal sectional view showing the connecting structure of the heat insulating panel and the separator, Fig. 13 is a front view of the same, and Fig. 14 is a front view of another embodiment of the same. FIG. 15 is a longitudinal sectional view showing how the pipes are attached when the heat storage tanks are installed in series, and FIG. 16 is a longitudinal sectional view showing the reinforcing structure. 1... Working floor (installation surface), 7... Floor reinforcing bars, 8...
... Peripheral wall reinforcement, 9 ... Pressure-resistant floor, 10 ... Floor plate, 11 ... Heat insulation material, 12 ... Heat insulation panel, 12
b...Insulation material, 13...Formwork panel, 31...Insulation panel, 32...Formwork plate, 33...Slab reinforcing bar, 34...Peripheral wall, 35...Ceiling slab.

Claims (1)

[Claims] 1 The process of arranging the floor reinforcing bars and the surrounding wall reinforcing bars on the installation surface, the process of placing concrete on the floor and then applying insulation to create the floor, and the process of installing insulation panels inside the reinforcing bars of the surrounding wall. The process of assembling the insulation panel or formwork panel on the outside, placing the insulation panel on the ceiling, installing a pressure-resistant formwork plate above it, and arranging slab reinforcing bars on the pressure-resistant formwork plate. A method for constructing a heat storage tank, comprising: a step of pouring concrete into the peripheral wall portion and the ceiling portion.