JPH0220772A - Construction for heat storage tank - Google Patents

Abstract

PURPOSE:To use an adjacent body in place of a form, and improve the extent of working efficiency in dispensing with any after-process as well as to aim at reduction in construction period and cost by creating a pressure proof floorplate, and setting up the heat storage tank body preassembled at the outside of a construction site on this floorplate after hanging it therein. CONSTITUTION:An underfloor drain pipe 12, a floor reinforcing bar 13 and an underground beam reinforcing bar 14 in a peripheral wall part are all arranged on a working floor 11, and concrete is placed, creating a pressure proof floorplate 20 there. In addition, at the outside of a construction site, a floor panel 1a, a wall panel 1b and a ceiling panel 1c provided with a drain hole 5, an interconnecting port, an air vent, a drain hole and a manhole each are assembled as supporting them with a support 3, spraying a heat insulator to them, and the required numbers of a heat storage tank body 1 are constructed. Then, the body 1 is hung in on the pressure proof floorplate 20 and fixed thereto, and adjacent bodies themselves are connected together by an interconnecting pipe 22, a vent pipe 23 and a drain pipe 24 via the interconnecting pipe or the like. In succession, concrete is placed on a floor part and in the circumference of the body 1 and a floor slab and a peripheral wall are created for completion.

Description

[Detailed description of the invention] "Industrial application field" 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 surrounding wall and ceiling after floor treatment, assembling a formwork, and pouring concrete into the formwork. After curing, the formwork was dismantled and the interior was insulated and waterproofed using on-site spraying techniques.

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. This was difficult and inefficient, 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 the work is left to the skill of the builder, resulting in variations in quality.
Due to these problems, there are currently many 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 arranges floor reinforcing bars and drainage pipes on the installation floor, as well as underground beam reinforcing bars in the peripheral wall, and places concrete on the floor. The required number of pressure-resistant floor panels will be constructed adjacent to each other, and prior to construction of the pressure-resistant floor panels, floor panels with drainage holes, communication ports, ventilation holes, and Assemble the wall panel with the drain port and the ceiling panel with the manhole while supporting it from the inside, spray insulation material on the outer periphery to construct the required number of heat storage tank frames, and place the heat storage tank frames on the pressure board. Connect the communication pipes, ventilation pipes, and drain pipes between the communication ports, vents, and drains of adjacent heat storage tank structures, and place floor slab reinforcing bars on the heat storage tank structures. By pouring concrete around the floor and the heat storage tank frame to create a floor slab and peripheral wall, the heat storage tank frame, which has been assembled outside the construction site in advance in conjunction with the construction of the pressure-resistant floor plate, can be suspended onto the pressure-resistant floor plate. In addition to increasing construction efficiency and reducing construction time and costs, the structure allows the use of formwork and separators by using the adjacent heat storage tank frame as a formwork and integrating it with the concrete poured in between. This makes it possible to work safely and efficiently in a large open space at all times, without the need for post-processes such as formwork dismantling work or insulation/waterproofing work in an internal closed space. By supporting the inner surface with supports, there is no need to install deck plates or steel frames when constructing the upper floor slab.Furthermore, after constructing the upper floor slab, the supports inside the heat storage tank frame can be dismantled and easily accessed from the manhole. This paper proposes a rational construction method for a heat storage tank that can be removed.

"Embodiments" Below, embodiments of the present invention shown in the drawings will be described.
At the beginning of construction of this invention, a step of assembling a box-shaped heat storage tank body l, which is the inner shell of the heat storage tank, outside the heat storage tank construction site;
The preliminary preparation process for installing the heat storage tank frame 1 at the heat storage tank construction site 45 is carried out separately and in parallel.

The heat storage tank frame 1 includes a floor panel 1a, four wall panels lb,
Each FRP panel material with reinforcing ribs is cut into unit panels of the required dimensions and lifted by a crane, and each unit panel is fastened with U-clip-shaped fasteners and placed at each corner. At the same time, the frame 2 is fastened with bolts to a frame 2 made of angled steel, etc., and assembled while supporting the assemblies q and erecting removable sabots 1-3 between the floor panel 1a and the ceiling panel IC and between each opposing surface of the wall panel ib. , the joints between each unit panel and between these and the frame 2 are treated with water leakage by positive irrigation.

A heat insulating material 4 is sprayed on the outer periphery of the heat storage tank frame 1 assembled in this way to maintain heat insulation properties, but since it is difficult to spray it on the floor panel 1a after the frame is assembled, La is assembled with the bottom side facing upwards, then sprayed with insulation material in advance, then turned over and assembled the wall panel 1b around the four sides, and with the ceiling panel IC assembled on top of it, the wall panel 1b and the ceiling are assembled. Spray insulation material on the outer peripheral surface of the panel IC.

In addition to providing drainage holes 5 at required locations on the floor panel 1a,
Fixing metal fittings 6 with notched holes at the ends are installed horizontally at required locations on the frame 2 around the four sides, and communicating lowers, ventilation holes 8 and drainage holes 9 are installed at appropriate locations on the wall panels 1b around the four sides. Furthermore, a manhole IO projecting upward in a cylindrical shape is attached to the ceiling panel IC.

On the other hand, at the heat storage tank construction site, underfloor drainage pipes 12 are installed to each adjacent heat storage tank installation part on the work floor 11, and underground beam reinforcement is installed around the floor reinforcing bars 13 and the installation fixing part of the heat storage tank frame 1. 14, and furthermore, a height-adjustable reference frame 15 is installed at the fixed part of the heat storage tank body l.

The reference frame 15 is formed from an angle steel material or the like into a rectangular frame shape approximately corresponding to the four circumferences of the floor panel 1a, and supports 16 protruding downward at required locations are inserted into a fixing sleeve 17 fixed on the work floor 1. By adjusting the height and fixing with the setscrews 18, the horizontal level and the position are adjusted to a predetermined height and supported.

In addition, around the reference frame 15, bolts 1 are installed upward at required locations.
The fixing metal fitting 6 having a protruding portion 9 is fixed.

In this state, concrete is poured on the work floor l to create the required number of adjacent pressure-resistant floor plates 20, and the heat storage tank frame l is sequentially lifted onto each pressure-resistant floor plate 20 using a crane and attached to its fixing metal fittings 6. Place it on the reference frame 15 while inserting the bolt 19,
The fixing fittings 6 are fastened with nuts 21 screwed into the bolts 19, thereby fixing the heat storage tank body 1 on the pressure-resistant floor board 20.

For the outer wall around the heat storage tank frame, formwork panels are assembled using conventional methods.

Next, the adjacent heat storage tank frames 1.1 mutual communication lower, 7,
A communication pipe 22°, a ventilation pipe 23, and a drain pipe 24 each having an outer periphery covered with a heat insulating material are connected between the ventilation port 8.8 and the drain port 9.9.

Next, a series of floor slab reinforcing bars 25 are arranged on each heat storage frame 1, and concrete is poured integrally on and around each heat storage frame 1 to construct a peripheral wall 26 and a floor slab 27,
After the concrete hardens, the supports 3 in each heat storage frame l are dismantled and removed, and the manhole l is opened onto the floor slab 27.
Take it out from O and complete the construction.

Depending on the site situation, it may be difficult to transport the heat storage frame 1 assembled in one piece due to obstacles such as reinforcing bars, steel frames, or struts; in such cases, the heat storage frame 1 The system is divided into multiple parts and assembled, and each divided part is transported individually and joined together at the installation site.

"Effects of the Invention" As described above, according to the present invention, the floor reinforcing bars, drainage pipes, and underground beam reinforcing bars of the peripheral wall are arranged on the installation floor, concrete is poured on the floor, and the required number of reinforcements are arranged on the installation floor. A pressure-resistant floor panel is constructed adjacent to the floor panel, and prior to construction of the pressure-resistant floor panel, floor panels with drainage holes, wall panels with communication ports, ventilation holes, and drainage ports, and manholes are constructed using FRP panels at a location outside the construction site. Assemble the ceiling panel with supports from the inside.

Build the required number of heat storage tank frames by spraying insulation material around the outer periphery,
This heat storage tank body is suspended and fixed on the pressure-resistant plate, and the communication pipe 1 ventilation pipe and drain pipe are connected between the communication ports, ventilation ports, and drain ports of the adjacent heat storage tank bodies, and The floor slab and surrounding walls are created by arranging floor slab reinforcing bars and pouring concrete around the floor and the heat storage tank frame, so the heat storage tank frame must be assembled outside the construction site in advance to prepare the pressure-resistant floor. can be easily installed by hanging it on a pressure-resistant floor plate, increasing construction efficiency and reducing construction time and costs.In addition, the adjacent heat storage tank frame can be made into a formwork and cast around it and on the floor. This eliminates the need for formwork or separators in the connected section of the heat storage tank (and eliminates the need for post-processes such as dismantling the formwork in the internal closed space and performing insulation and waterproofing). By supporting the inner surface of the heat storage tank with supports, it is possible to work extremely safely and efficiently in a large space that is always open, and by supporting the inner surface of the heat storage tank, it is possible to install deck plates and perform steel frame work when constructing the upper floor slab. It is not necessary, and furthermore, the support inside the heat storage tank frame can be dismantled and easily taken out from the manhole after the construction of the upper floor slab.

In addition, since the heat storage tank frame is assembled outside the construction site in a location free of work obstacles, the work environment is good with freedom in bringing in and out of equipment and movement of workers, and the spraying of insulation material is also stopped. Work with water materials can be carried out smoothly and reliably, and quality can be made uniform.

[Brief explanation of the drawing]

1 to 6 are vertical sectional front views showing the construction state of the present invention in the order of steps, FIG. 7 is a perspective view of the heat storage tank frame according to the present invention, and FIG. 8 is a vertical sectional view of the heat storage tank constructed according to the present invention. , FIG. 9 is a partial longitudinal sectional side view showing the fixed state of the heat storage tank frame. ■...Thermal storage tank frame, 1a...Floor panel, 1b...Wall panel, 1c...Ceiling panel, 2...Frame, 3...Support, 4...Insulation material, 5...Drain hole, 6... Fixing bracket 6゛・
・Fixing bracket, 7. Communication port, 8. Ventilation port, 9. Drain port, 10. Manhole, 11. Work floor, 12. Underfloor drain pipe, 13. Floor reinforcement, 14. Ground. Middle beam reinforcement, 15...
, reference frame, 16...support material, 17...fixing sleeve, 1
8. Set screw, 19. Bolt, 20. Pressure-resistant floor board, 21. Nut, 22. Communication pipe, 23. Ventilation pipe, 24. Drain pipe, 25. Floor slab reinforcing bar, 26.・Peripheral wall, 27...floor slab. Patent applicant Tokyo Metropolitan Service Co., Ltd. TEPCO Sekkei Co., Ltd.

Claims (1)

[Claims] 1) Arrange floor reinforcing bars, drainage pipes, and underground beam reinforcing bars on the surrounding wall on the installation floor, pour concrete on the floor, create the required number of pressure-resistant floor slabs adjacent to the floor, and install the above-mentioned pressure-resistant Prior to construction of the flooring, FRP panels are used at a location outside the construction site to support the floor panels with drainage holes, the wall panels with communication ports, ventilation holes, and drainage ports, and the ceiling panels with manholes from the inside with supports. At the same time as assembling, a required number of heat storage tank bodies are constructed by spraying a heat insulating material on the outer periphery, and the heat storage tank bodies are suspended and fixed on the pressure platen,
A communication pipe, a vent pipe, and a drain pipe are connected between the communication ports, vents, and drain ports of the adjacent heat storage tank frames, and floor slab reinforcement is arranged on the heat storage tank frame, and the floor part and the heat storage tank frame are connected. A construction method for a heat storage tank characterized by pouring concrete around the tank to create a floor slab and peripheral wall.