KR102196138B1 - Reinforcement methods and structure of domestic coal shed for a pc. - Google Patents

Abstract

In order to achieve the above object, the present invention,
In order to facilitate the manufacture and transport of PC concrete, which is the main material of the coal storage, the construction cost is reduced by reducing the weight by forming a hollow structure, improving durability, maintaining verticality, and simplifying the connection method between PC products such as hardening treatment with the foundation. In addition, in a method to ensure that the structural performance is sufficiently exhibited, each panel of the main wall is manufactured,
The primary main/minor wall 1-1 structure of both the hollow panels of the individual assembly and the segment unit assembly 114 which form a coupling between the pc panels with vertical and horizontal connectors and a gap maintaining material so that the panels form a constant clearance distance;
The primary main and sub-wall 1-2 structures are configured to be integrated by bonding both hollow panels by installing a structural material inside the hollow or filling the filled concrete;
The secondary main and sub-wall 2 of both hollow panels are arranged in a zigzag manner to install and assemble a segment unit assembly for secondary main and sub-wall structures on the upper layer of the primary main and sub-wall structures, but displaced from the horizontal joint position of the primary main and sub-wall structures. -1 and 2-2 structures;
A connection structure between the triangular wall and the straight wall;
Connection structure between the straight walls;
The upper structure of the main wall forming a T-shape;
A structure that binds the inner hollow structure of the main and sub-wall structures with the expanded foundation and interconnects the expanded foundation with the foundation pile to support the main and sub-wall structures;
A triangular base wall structure connected laterally to the structure of the corner base wall and the segment unit assembly connected to the upper side by a dowel bar connection structure;
A triangular base wall structure comprising a dowel bar so that the triangular base wall is fixed on the base plate so as to be inclined and the segment unit assembly is stacked upward;
A connection structure that binds the connection between the main wall and the triangular wall using a connection foot, a slope wall, and an anchor bolt nut;
a fireproof structure configured to allow the pc panel to withstand heat;
Each of these PC concrete structures is characterized in that it is inexpensive, maintains durability, is easy to connect, facilitates transport, and includes structural and mechanical safety,
In the present invention, in installing and assembling a PC concrete product manufactured to simplify the structure, have excellent connectivity, and facilitate transport,
The first effect of saving air is the first effect of saving air as it facilitates installation by making panels to assemble in a hollow structure and assembling them.
The second effect of improving economic efficiency by using a relatively small crane and lightening the weight of the panels forming the frame of the hut structure,
By applying a section steel that binds horizontally and vertically from the inside of the panel of both segments of the main and sub-walls, it maintains the gap between the main and sub-wall panels and serves as a connecting material, so that the rigid main and sub-wall connection structure increases resistance to external forces and increases toughness. With the third effect,
The fourth effect of configuring the joint to be easily achieved because the shape steel is embedded for the connection between the triangular wall and the straight wall and the joint between the straight wall and the straight wall,
The fifth effect of simplifying construction by concisely bonding with connection feet and slope walls, anchor bolt nuts, and dowel bars for the connection of the triangular wall and the main wall,
The sixth effect of fixing the piles on the foundation plate, and binding the foundation plate with the main wall and the triangular part wall to maintain solidity,
The seventh effect that complex construction processes such as installation and curing of formwork and copper bars for high altitude construction are omitted, and the construction period can be significantly shortened by simple PC assembly.
The eighth effect that can achieve cost reduction by mass-producing PCs of the same standard at one power plant,
The ninth effect of forming a structure that increases the stability against lateral forces structurally by filling the space formed between panels with structural materials and filled concrete,
To prevent damage to PC concrete products due to spontaneous ignition, the tenth effect of increasing fire resistance by forming a fireproof structure through the addition of admixtures when drying the structure or application of fireproof mortar and plaster,
The eleventh effect of forming a space structure so that the heat transferred to the pc panel during the spontaneous ignition can be discharged or cooled to the outside through a hollow structure,
The twelfth effect of allowing quick extinguishing by having several inspection windows capable of extinguishing the ignition point through the above space structure when ignition inside the storage area near the pc panel, and
The 13th effect of preventing economic and time loss due to measures against the generation of hydration heat due to concrete pouring in construction by the on-site placement method, and
The storage pc panel is assembled so that it can be attached and detached when assembling, and the simplicity and ease of construction and the efficiency of work are covered, such as the 14th effect of facilitating maintenance by allowing the panel to be replaced in case of damage. It has been prepared so that the effect of a total of 13 places such as construction cost and constructability can be expected.

Description

Reinforcement methods and structure of domestic coal shed for a pc.}

Thermal power plants are a system that generates power by burning fossil fuels, and most power plants use bituminous coal as fossil fuels, and coal has been stored and used in the open air, which was often seen in coal mine areas such as Sabuk or Jeongseon in Korea. F. The coal accumulated in the open-air scatters due to strong winds, contaminating the neighboring area, causing civil complaints, and problems such as getting wet or spontaneously ignited and causing a fire. Because it is the cause of opposition to the problem, there has been a movement to do indoor construction even if construction costs are incurred to solve this problem.

This indoor coal storage is a kind of warehouse that stores coal, and has the advantage of solving the problem of coal scattering in an outdoor storage area and efficiently managing coal resources from the natural environment.The indoor coal storage area has the advantage of storing coal and biomass. It is divided into storage sections and has a rectangular shape, and the main wall crosses the center of the long side of the coal storage area, and the buttresses must be installed asymmetrically on both sides of the central main wall. Air is always an obstacle, and this air is probably because it is formed in a vast structure in terms of construction scale.

Therefore, the present invention is a method of installing as a precast product by assembling reinforcing bars and placing concrete directly using a formwork and curing them in order to quickly complete such a massive structure. Compared to the existing on-site casting method, it is intended to suggest that it is a method of increasing workability, shortening the construction period, and efficiently reducing construction costs.

However, in the case where one storage chamber is generally full and the other storage chamber is empty, the main wall and the side wall of the coal storage must be structured to resist such lateral force as the greatest lateral force is transmitted. In particular, most of the truss structure, which is the frame of a roof facility that can avoid wind and rain, and a truss column structure supporting it, are formed in a structure that is seated on the top of the main wall.

The structure of the main wall is like a skeleton structure of the backbone of an animal, and the height of the skeleton structure is very large, so the conventional method of placing on-site is avoided and the PC structure is used to conveniently construct such a skeleton structure. As the precast method used is applied and operated, it is believed that construction costs and construction costs can be drastically reduced. Therefore, it is possible to reduce the weight by making it as a hollow structure as possible in consideration of transportation and installation when manufacturing with a PC structure, but after installation, a truss structure or filled concrete that binds both pc panels to each other is inserted into the hollow structure after installation. Not only is it possible to achieve stabilization, but it is also a necessary measure to allow for a more relaxed construction due to its light weight when operating the equipment.

The main and sub-walls constructed in this way are connected to the foundation plate and piles inputted into the ground, and must be of a structure that can sufficiently withstand the rotational moment and displacement resulting from the lateral pressure of the main and sub-walls acting when the coal is loaded and absent in one area. Because durability can be secured only when it is a structure that can withstand the vertical force of the roof truss structure and prevents from falling, it is not only that the connection between the PC structure segments must be tightly connected, but also designed and constructed to have sufficient resistance facilities considering eccentric loads. You have to lose.

Therefore, the connection between the main wall and the main wall, the connection between the main wall and the triangular part, the connection between the triangular part and the straight side wall, and the connection between the straight side wall and the straight side wall will be an important key to securing the durability of this coal storage. This is to ensure that durable stability can be maintained by using a binding device.

On the other hand, the existing cast-in-place construction method requires gradual construction and curing of heavy and tall structures by assembling formwork and reinforcing bars, so a lot of time and effort are invested, and the disadvantages that are never advantageous in terms of construction costs or construction costs are highlighted. Since we have been seriously contemplating, the expectation placed on this PC-based assembly method can solve most of the shortcomings of the above-mentioned cast-in-place method, so it can be said that the future development prospect is great.

As the only technology as a coal storage, the "fireproof reinforcement structure for a coal storage facility of a thermal power plant and its construction method" is publicly published as Patent Publication No. 10-2017-0111488 (published date) 2017.10.12).

According to an embodiment of the Korean Patent Publication No. 10-2017-0111488, ``a fireproof reinforcing structure for a coal storage facility in a thermal power plant and a construction method thereof,

In a fireproof reinforcement structure for preventing ignition of coal stored therein and installed in a shed facility for storing coal in a thermal power plant, the structure

A fire reinforcing member 100 that is installed by grouting on one side of the shed (S) formed of a concrete wall or the following fire insulation member 200;

A fire-resistant insulating member 200 installed by grouting on one side of the shed (S) formed of a concrete wall where coal is stored;

The fireproof panel member 300 bonded on one side of the fireproof heat insulating member 200 and the lower support member installed to extend in the horizontal direction from the shed S to support the load from the lower side of the fire reinforcement structure below It consists of 400, including,

The fire reinforcing structure in which at least one of the fire reinforcing member 100, the fire insulation member 200, and the fire panel member 300 is integrally precast is the lower support member 400 from the lowermost end to the uppermost end of the shed (S). ) And mortar bonding in layers to cover the concrete wall.

This does not provide a description of how to construct the central main wall, buttress and foundation that forms the frame of a storage storage (shed), but how to prepare concrete facilities against a spontaneous fire from coal in a storage compartment divided by bulkheads. It describes only fire reinforcement, fire insulation, fireproof panel member technology, etc. for protection. Therefore, since technology is missing for the method of installing concrete facilities, another technology for constructing this and preparing for fire resistance is urgently required.

Therefore, in preparation for this, the precast product is assembled and installed, unlike the conventional method, so that air and quality are improved, and admixtures are added in the process of PC conversion for fire resistance. It is intended to introduce a technology that increases resistance to heat by applying or spraying the surface with fireproof mortar or plaster.

In the present invention, since the coal storage is a huge structure, there are many negative conditions, such as when the construction is carried out using the existing on-site casting method, and there are many negative conditions, such as having to bear the risk according to the altitude, this is simplified to a PC structure to reduce construction and construction costs. We want to be able to reduce it.

To this end, as a technology for how to manufacture, install, and connect the main wall, the connection technology between the main wall and the foundation, the vertical and horizontal connection technology of the main wall and the main wall, the connection technology of the space structure between the main walls and the filling material input,

In addition, as a technology for the shape, fabrication and connection of the buttress, the connection technology between the buttress and the foundation, the connection technology between the buttress and the buttress, the space structure material and the filling material input connection technology,

Connection of main wall and buttress and corner part facility installation technology besides connection of buttress and foundation,

In addition, since all technologies are emphasized in the manufacture of PC concrete products along with fireproofing technology for heat generation, durability is increased, construction period is shortened, and construction cost can be reduced, as well as simplicity and safety of construction. It has its purpose.

In order to achieve the above object, the present invention,

In order to facilitate the manufacture and transport of PC concrete, the hollow structure is made to reduce the weight, improve durability, maintain verticality, and simplify the connection method between PC products, such as strengthening treatment with the foundation, to reduce construction costs and to provide sufficient structural performance. In the method to be exercised, each panel of the main wall is manufactured,

The primary main and sub-wall 1-1 structures of the hollow two panels of the individual assembly and segment unit assembly that form the coupling between the two pc panels with a vertical and horizontal connector and a space-holding material so that the two panels achieve a constant clearance;

The primary main and sub-wall 1-2 structures are configured to be integrated by bonding both hollow panels by installing a structural material inside the hollow or filling the filled concrete;

The secondary main and sub-wall 2 of both hollow panels are arranged in a zigzag manner to install and assemble a segment unit assembly for secondary main and sub-wall structures on the upper layer of the primary main and sub-wall structures, but displaced from the horizontal joint position of the primary main and sub-wall structures. -1 and 2-2 structures;

A connection structure between the triangular wall and the straight wall;

Connection structure between the straight walls;

The upper structure of the main wall forming a T-shape;

A structure that binds the inner hollow structure of the main and sub-wall structures with the expanded foundation and interconnects the expanded foundation with the foundation pile to support the main and sub-wall structures;

A triangular base wall structure connected laterally to the structure of the corner base wall and the segment unit assembly connected to the upper side by a dowel bar connection structure;

A triangular base wall structure comprising a dowel bar so that the triangular base wall is fixed on the base plate so as to be inclined and the segment unit assembly is stacked upward;

A connection structure that binds the connection between the main wall and the triangular wall using a connection foot, a slope wall, and an anchor bolt nut;

a fireproof structure configured to allow the pc panel to withstand heat;

Each of these PC concrete structures is characterized in that it is inexpensive, maintains durability, is easy to connect, facilitates transport, and includes structural and mechanical safety.

In the present invention, in installing and assembling a PC concrete product manufactured to simplify the structure, have excellent connectivity, and facilitate transport,

The first effect of saving air is the first effect of saving air as it facilitates installation by making panels to assemble in a hollow structure and assembling them.

The second effect of improving economic efficiency by using a relatively small crane and lightening the weight of the panels forming the frame of the hut structure,

By applying a section steel that binds horizontally and vertically from the inside of the panel of both segments of the main and sub-walls, it maintains the gap between the main and sub-wall panels and serves as a connecting material, so that the rigid main and sub-wall connection structure increases resistance to external forces and increases toughness. With the third effect,

The fourth effect of configuring the joint to be easily achieved because the shape steel is embedded for the connection between the triangular wall and the straight wall and the joint between the straight wall and the straight wall,

The fifth effect of simplifying construction by concisely bonding with connection feet and slopes, anchor bolt nuts, and dowel bars for the connection between the triangular wall and the main wall,

The sixth effect of fixing the piles on the foundation plate, and binding the foundation plate with the main wall and the triangular part wall to maintain solidity,

The seventh effect that complex construction processes such as installation and curing of formwork and copper bars for high altitude construction are omitted, and the construction period can be significantly shortened by simple PC assembly.

The eighth effect that can achieve cost reduction by mass-producing PCs of the same standard at one power plant,

The ninth effect of forming a structure that increases the stability against lateral forces structurally by filling the space formed between panels with structural materials and filled concrete,

To prevent damage to PC concrete products due to spontaneous ignition, the tenth effect of increasing fire resistance by forming a fireproof structure through the addition of admixtures when drying the structure or application of fireproof mortar and plaster,

The eleventh effect of forming a space structure so that the heat transferred to the pc panel during the spontaneous ignition can be discharged or cooled to the outside through a hollow structure,

The twelfth effect of allowing quick extinguishing by having several inspection windows capable of extinguishing the ignition point through the above space structure when ignition inside the storage area near the pc panel, and

The 13th effect of preventing economic and time loss due to measures against the generation of hydration heat due to concrete pouring in construction by the on-site placement method, and

The storage pc panel is assembled so that it can be attached and detached when assembling, and the simplicity and ease of construction and the efficiency of work are covered, such as the 14th effect of facilitating maintenance by allowing the panel to be replaced in case of damage. It has been prepared so that the effect of a total of 13 places such as construction cost and constructability can be expected.

1 to 12 are views showing an embodiment according to the present invention,
1 is a diagram schematically showing a plan view of a coal reservoir of a thermal power plant
FIG. 2 is a diagram schematically showing a cross-section of FIG. 1 cut through the plane
3 is a plan view schematically showing a part of the plane of FIG. 1 in which the main wall and the minor wall are connected
4 is a plan view schematically showing the configuration details of the main wall and the connection state
Detail 4a is a plan schematically showing the connection details of the main wall and the vertical connector.
5 is a front view schematically showing the upper end of the main wall
6 is a view showing a corner where the triangular wall connected to the main wall and the triangular wall connected to the foundation meet
7 is a view showing a detailed schematic plan of the shape in which the main wall and the minor wall are bound in FIG. 3
Detail 7a is a general plan view showing the connection of the triangular wall to the main wall after the pc main wall is installed and completed.
Detail 7aa is a detail that unfolds detail 7a in a plane
Detail 7b is a detailed overview showing the vertical junction of the bent part where the triangular wall and the straight wall meet.
Detail 7c is a detailed schematic showing the connection between the vertical connector of the triangular wall and the pc panel on one side
Detailed 7cc is a detailed overview showing the fastening bolt groove in detail 7c.
Detail 7d is a detail schematically showing the horizontal connection of the straight wall
Detail 7e is a detailed overview showing the installation of gusset steel plates so that the truss structure can be installed on the spacing material inside the triangular wall.
Detail 7f is a detailed overview showing the installation of gusset steel plates on the horizontal connector for the truss structure inside the triangular wall.
FIG. 8 is a diagram schematically showing a state in which a blocked joint is formed by making zigzag connections instead of being connected in one place when the main and sub-walls are stacked upward
9 is a view schematically showing the situation of vertical connectors in the main and secondary walls
Detail 9a is a view schematically showing a gusset steel plate for binding the truss structure to the planar detail of FIG. 9
10 is a view schematically showing the situation of the horizontal connector and the protruding reinforcement in the main and secondary walls
Detail 10a is a diagram schematically showing a situation in which FIG. 10 is viewed from a different angle
FIG. 11 is a diagram schematically showing a situation in which a dowel bar for connection between a basic triangular portion connected to the foundation plate and a secondary wall to be stacked as an upper layer is installed
12 is a diagram schematically showing the situation of an opening that can be burned when a fire occurs due to spontaneous ignition in the middle of a storage room

In the present invention, a pc panel 95 required for converting the coal storage 100 of the thermal power plant 90 to precast construction from the existing cast-in-place construction is manufactured and interconnected and arranged at intervals, and the coal ignition furnace In implementing fireproof reinforcement due to, the pc structure

The primary of both the hollow panels of the individual assembly 121 and the segment unit assembly 114 that form the coupling between the pc panels 95 with vertical and horizontal connectors and space retaining members 107, 108, and 109 so that the two panels achieve a constant clearance distance. Main and minor wall 1-1 structure;

The main and sub-wall 1-1 structure The primary main and sub-wall 1-2 structure is configured to be integrated by bonding the panels to each other because a structural material is installed inside the hollow or filled concrete 111 is filled;

The secondary main and sub-walls 101 and 102 structure segment unit assembly 114 is installed and assembled as the upper layer of the primary main and sub-wall structures 101, 102, but is arranged in a zigzag manner to deviate from the horizontal joint position of the primary main and sub-wall structures. The secondary main and secondary wall 2-1 and 2-2 structures of both panels;

A connection structure between the triangular wall 102a and the straight wall 102b;

A connection structure between the straight wall 102b;

The upper structure of the main wall 101 forming a T-shape;

A structure that binds the inner hollow structure inside the main and sub-walls 101 and 102 with the enlarged foundation 113 and interconnects the enlarged foundation 113 and the foundation pile 112 to support the main and sub-walls 101 and 102 structures;

The structure of the corner base wall 102d and the segment unit assembly 114 connected to the upper side by a dowel bar 110 connection structure and a triangular base wall 102c connected laterally;

A triangular base wall 102c constituting the dowel bar 110 so that the triangular base wall 102c is fixed to be inclined on the base plate and the segment unit assembly 114 is stacked upwardly;

A connection structure that binds the connection between the main wall 101 and the triangular wall 102a by using a connection foot 118, a dead wall 119, and an anchor bolt nut (AN);

a fireproof structure configured to allow the pc panel 95 to withstand heat; Consideration of such, etc., and replacement of the limitations due to air in the existing on-site placement method with a pc structure, so that it can be compensated, and maintain safety and verticality by solving the problem of bonding between structures, a problem due to the characteristics of the pc structure. , It is to be able to perform complete execution of elements such as maintaining the distance between the two (left and right) pc panels 95, and configuring the top, bottom, left, and right connections between structures.

1-1 structure that forms the main and secondary walls

The primary of both the hollow panels of the individual assembly 121 and the segment unit assembly 114 that form the coupling between the pc panels 95 with vertical and horizontal connectors and space retaining members 107, 108, and 109 so that the two panels achieve a constant clearance distance. As the main/subwall 1-1 structure,

The panels on both sides are connected to the vertical and horizontal parts as shown in FIG. 9 and 10 by using vertical and horizontal connectors 107 and 108,

The vertical connector 107 also functions as a gap-holding member 109. In the main wall 101, as shown in FIG. 7, it is installed between the portion where the secondary wall is connected and the horizontal connection portion and between the vertical connector 107 It would be desirable to arrange it so as to reinforce the lateral pressure and the weak connection due to 102, and the minor wall 102 connected to the main wall 101 has a triangular structure as shown in FIG. 7 so that the main wall 101 and the In contrast, the web length of the vertical connector 107 should be differently manufactured and installed according to the position installed between the triangular wall 102a panels.

In addition, in the above, it would be desirable to manufacture the panel thickness and length in a thickness and length capable of road transport, and the gap maintenance between panels may be different depending on the height of each storage room, and the gap maintaining material 109 for this And the vertical connector 107 is manufactured in an I shape using a steel type, but the length of the web may be longer than that of a ready-made product, and it will be installed so that the flange is in contact with the inner wall of the panel, so that it will be a shape in which the steel type is laid down. As can be seen, since it is preferable to arrange the upper and lower structures of each of the flanges with one vertical connector 107, the structure to be stacked divided into upper and lower layers is tied and fastened with one steel flange.

The vertical connector 107 in the main wall 101 and the straight wall 102b has a constant web length because both panels are parallel, whereas the vertical connector 107 in the triangular wall 102a has both panels on the wide side. as shown in it forms a slope to the narrow side is also angle of the web and the flange surface forms 9a on one side is an acute angle, the other side is composed of a state bent by an obtuse angle of the length of the web has to be made differently for each position lies in a horizontal direction And, the vertical connecting member 107 in the straight wall 102b may use a ready-made H steel type.

However, the above vertical connector 107 has to be installed before the first 1-1 structure of both panels is installed and the 1-2 structure is completed, because it is a binding material with both the secondary panels to be stacked. .

On the other hand, the horizontal connector 108 does not cover the main wall 101, the triangular part wall 102a and the straight part wall 102b, and uses a separate T-steel type to connect the panel in a transverse direction as shown in FIG. By arranging the left and right panels in a row, and attaching the T-steel type to the upper and lower ends of the connecting part, a number of anchor bolt nuts (AN) are fastened on both sides of the surface in contact with the coal ash.

These connecting members 107 and 108 and the gap maintaining member 109 may be pre-assembled and manufactured with both panels on the ground, which is during the construction of the full-scale coal storage 100 and ground replacement and foundation pile 112 Pre-assembled and manufactured the pc panel (95), the vertical/horizontal connectors (107, 108), and the spacing retainer (109) brought in from any one of the construction sites to form a segment unit assembly (114), lifting them and assembling them in the right place. It is possible to complete the coal storage 100 only by doing so, and it will be possible to drastically reduce construction costs and construction costs.

1-2 structures that form the main and secondary walls

The main and sub-wall 1-1 structure is a primary main and sub-wall 1-2 structure that is configured to be integrated by binding both hollow panels because a structural material is installed inside the hollow or filled concrete 111 is filled,

First of all, there is a truss structure using L-beam 116 as a structural material.

The truss structure of the truss structure serves as a tension member so that the main wall 101 structure has resistance against bending stress and displacement when one side of the coal is filled with the binding material that integrates the two panels, and the buttress 102 structure when ubiquitous by coal storage It is a structure that must simultaneously perform the function of controlling the displacement and the occurrence of bending stress of the panel, and the vertical connector 107 and the horizontal connector 108 inside the hollow structure between the two panels and the gap retaining member 109 installed between the vertical connector And by placing the L-beam 116 on the gusset steel plate 120 installed on these connecting materials to the gusset steel plate 120 of the connecting materials connected to the pc panel at the opposite position, so that the shape of'X' is formed, and A truss structure that binds the mating portion and the gusset steel plate 120 with fastening bolt nuts (BN) that fastens both internal and external sides as shown in FIG. 7 may be installed.

Such a truss structure not only functions to maintain the rigidity of the main and sub-walls 102, but also when a fire occurs due to spontaneous ignition inside the storage, the main and sub-walls 101 and 102 may be heated and deteriorated. ·Heat can be discharged to the outside through the hollow interior of the sub-walls 101 and 102 structure, and a person is input and detects the state of the wall by the heat to find the fire ignition point and the corresponding inspection window 115 of FIG. When the panel is damaged due to excessive heat or other reasons, it is also difficult to extinguish a fire by opening the door and putting a fire extinguishing agent inside, and it also functions to cool the wall that has been burned with heat. It can be said that it is installed in a detachable manner that can be replaced, so that the storage structure can be easily maintained.

Since the truss structure has to maintain stability by configuring the foundation pile 112 and the combination body, reinforcement is laid at a certain height at the lower end of the primary main and secondary wall 102 structure and filled concrete 111 is poured. It is desirable to make the combination with (112). Therefore, for this purpose, a facility that allows people to enter and enter should be installed, and a staircase connecting the top and bottom of the L-beam 116 of a truss structure should be installed, but it should be prepared from the floor to the top floor of the main wall structure. .

Next is the filled concrete 111,

When manufacturing both panels, as shown in Figs. 9 and 10, the protruding reinforcing bar 117 is inserted into the inner side without a smooth formwork, so that the adhesion with the filled concrete 111 to be filled in the hollow space is smoothly achieved. Since the reaction force of the foundation pile 112 acts as a vertical force in the lower part, the foundation pile 112 completely supports the upper load by acting integrally with the panel so that shear does not occur between the panel and the poured concrete 111. It is to do.

At this time, the primary filled concrete 111 should be filled only to the extent that it leaves a certain amount of space in the upper layer, which means that the lower layer structure is integrated with the foundation pile 112 in order to stably stack the panels stacked in the upper layer to maintain solidity. This is because it is to form a stacked structure of panels as an upper layer, and to secure a space for fastening vertical and horizontal connectors (107, 108) between them, and then at the same position as the connection between panels when pouring the secondary filled concrete (111). This is to prevent the occurrence of cold joints of the filled concrete 111 and to facilitate vibrating of the filled concrete 111.

In addition, it is to assemble the laminated panel and assemble the horizontal and next vertical connectors 107 while the filled concrete 111 that is firstly poured on the lower layer is cured.This is to save air and fill the first. It is to maintain continuity between the filled concrete 111 because the second filled concrete 111 is poured before the concrete 111 is completely hardened.

On the other hand, since any one of these methods is selected and stacked by repeating it, the main and sub-walls 101 and 102 can be completed.

2-1 and 2-2 structures that form the main and secondary walls

The segment unit assembly 114 and the individual assembly 121 for the secondary main and sub-wall structures 101 and 102 are installed and assembled as the upper layer of the primary main and sub-wall structures 101 and 102, but the position of the horizontal joint of the primary main and sub-wall structures As the secondary main and secondary wall 2-1 and 2-2 structure of both hollow panels arranged in a zigzag shift,

This is to avoid the joint so that the horizontal connection part does not occur in any one place, as shown in FIG. 8, and to promote the stability of the stacked structure through the blocked joint, through which the horizontal connector 108 is also installed in a zigzag method. The vertical connector 107 is also assembled and installed with the upper layer stacked structure in the same way, so that the truss structure and the filled concrete 111 are poured, so that a complete integral main/minor wall (101, 102) structure can be achieved.

Therefore, the method of treating the gap between the panels on both sides of the main wall 2-1 and 2-2 structures can be constructed by dividing into two methods of installing a structural material or filling the filled concrete 111. These methods are described above. It is divided by the description of the main wall 1-2 structure. However, if you further explain the characteristics of each method,

The first method described above is advantageous in terms of economy because the number of piles required is small due to the light weight of the structure, and the internal space quickly cools the heat transferred to the panel when the coal is spontaneously ignited, thereby protecting the panel and preventing the ignition point early. While there is an advantage that can be found and digested, the stability and durability of the structure of the primary main and secondary walls 101 and 102 due to the low weight are inevitably insufficient, so reinforcement to bind them to the foundation pile 112 and the section steel will be required. .

The second method has the advantage of improving stability and durability by increasing the weight of the structure, while the number of main piles 112 and the amount of filled concrete 111 increase, which increases the construction cost and transfers to the panel when coal is spontaneously ignited. There is a drawback that heat cannot be cooled early.

In this way, since the storage is gradually constructed by selecting one of the above two methods, the construction technique is to be converted from the conventional method to a modern technique so that construction costs and construction costs can be reduced.

Connection structure between triangular wall and straight wall

The triangular part wall (102a) is composed of a structure in which both panels are inclined and connected to the straight part wall (102b). Due to this structure, the part where the two sub-walls naturally meet takes on a bent shape. It can be said to be a very difficult structure to connect.

Therefore, in order to solve this problem, it is desirable to configure the connection to be connected at any part of the straight wall 102b past the bent portion as shown in Fig. 7b. The vertical and horizontal connection parts are fastened only with the H steel type without using the T steel type inside the connection part. I will be able to do it.

That is, it was described in the ``1-1 structure constituting the main and sub-walls 101 and 102'', and as shown in Fig. 8, the vertical connector 107 is used only on the side that is not in contact with the H steel type and the coal material between the laminated pc panels. It is fastened using a bolt nut (BN), and the horizontal connector path 108 can be fastened between the pc panels 95 leading to the side by using an H-steel type and a fastening bolt nut (BN).

However, unlike the main wall 101 and the triangular wall 102a, since it is difficult to insert a manpower, the nut is welded to the inside of the H-steel flange in advance, and a hole is made to attach one side and the other side of the straight side wall 102b to secure the fastening bolt from the outside. It can be entered and concluded.

In addition, the same method can be applied to stack this as an upper layer and fasten the vertical connector 107, and it can be selected and constructed according to conditions among the methods of filling the internal hollow space or placing it in a hollow structure.

When filling the hollow structure, it may be difficult to form a space for pouring the filled concrete 111 due to the narrow distance between the panels on the straight wall, so when installing the horizontal connector 108, shorten the length or make a hole in the web to fill concrete ( 111) Filling should be facilitated, and it is assembled and installed in this way, stacked and repeated.

On the other hand, in the triangular part wall (102a), it is preferable to install a gap retaining material 109 near the bent part so that the pc panel 95 is not deformed due to the bent part, and the installation method of the gap retaining material 109 is Since it has been sufficiently explained in “1-1 structure constituting the main and sub-walls 101 and 102”, this will be separated.

Connection structure between straight walls

This is because the connection structure between the straight wall 102b has already been described in the "connection structure between the triangular wall 102a and the straight wall 102b", and thus detailed description will be omitted.

Top structure of main wall

As a top structure of the main wall 101 forming a T-shape;

The upper end of the main wall 101 forms a T-shaped structure 106 as shown in FIG. 5, so that the steel column that can support the steel structure roof forming the outer shell is fixed to the T-shaped structure 106 of the main wall, so the stability of the steel structure At this time, as the vertical force acting on the top of the main wall 101, the self-weight of the steel structure roof, the self-weight of the external finishing material, the self-weight of the solar module installed on the outer surface of the steel structure, and the structural self-weight therefor, and maintenance. The weight of the access path and safety guard rail will be applied,

This weight will act as a vertical force on the main wall 101, and since the main wall 101 is transferred as a concentrated load to the foundation pile 112 along with its own weight, the spacing of the foundation pile 112 can be determined through structural review. will be.

In addition, when the main wall 101 of the last end is installed and assembled on the top floor, as well as the vertical connection part, the vertical connector 107 is arranged so as to serve as the spacer 109 so that the panels on both sides are Make sure it doesn't happen.

On the other hand, in the case of emptying the inside without installing the filled concrete 111, the vertical connector 107 and the horizontal connector 108 inside the hollow, as described in ``1-2 structure constituting the main and secondary walls 101 and 102''. The truss structure forming an'X' shape by binding the L-beam 116 to the gusset steel plate 120 of the and spacing member 109 should be installed and assembled to achieve stabilization.

The reason for this should be to counter the normal force, but it is also because a firm binding force of both panels is required. In addition, the upper end of the T-shaped structure 106 is to be covered with a lid of the pc panel 95 so that coal ash does not flow in, and if necessary, one must be opened so that a person can enter and exit.

Connection structure with the expanded foundation that supports the main and secondary wall structures

The main and sub-walls (101, 102) structure The inner hollow structure is bound to the enlarged foundation (113), and the enlarged foundation (113) and the foundation pile (112) are interconnected to support the main and sub-wall (101,102) structures,

As the foundation pile 112, PHC piles, composite piles, and steel pipe piles are used, and the foundation pile 112 is connected to the enlarged foundation 113, and the panel of the main wall 101 and the buttress 102 structure is the enlarged foundation 113 ).

Filled concrete 111 is to be poured in such a combined configuration. The foundation pile 112 is not limited to a position that divides the center line of the main and minor walls 101 and 102 as shown in FIG. 7, and may be placed in a position near both the left and right panels so that the structure does not cause an eccentric action.

Since the Gacho pile 112 is a facility that supports the truss structure of the outer shape supported by the main wall, the side wall, and the main wall, it can be said that its main role is to support the axial force, and here, the coal in each storage room of the coal storage 100 In the case of ubiquitous distribution, it should be seen that the foundation pile 112 also serves to control this because sliding may come in the opposite direction from the ubiquitous place.

On the other hand, for the connection between the panel and the enlarged base 113, the main and sub-walls 101 and 102 are connected to the panel of the main and sub-walls 101 and 102 by using the dowel bar 110 installed on the base of both the panel and the enlarged base 113. As shown in Fig. 7, it is preferable to fasten and fix the main wall 101 and the triangular part wall 102a in the same manner as the connection details. This is to complete the fastening with the expansion base 113 because the transverse shear occurs when the coal is full in the storage storage 100 for storing coal.

Connection structure of corner foundation wall

The structure of the corner base wall 102d and the segment unit assembly 114 connected to the upper side by a dowel bar 110 connection structure and the triangular base wall 102c structure connected laterally,

The corner triangular wall (102a) does not necessarily have a pc structure, but can be cast in place. In the case of a pc structure, it is necessary to make the corner part inclined and connect it with a horizontal connector 108 and a hollow structure. In the case of the cast-in-place structure, the cast-in-place structure should be connected to the pc structure pull-out reinforcing bar by the dowel bar 110 method for bonding with the nearby pc structure, but it will be able to be manufactured in a massive structure from the beginning. .

On the other hand, in the case of the pc structure, as the method of processing the hollow space between the two panels, the contents described in the above "main/subwall 1-1 and 1-2 structures" are followed.

However, since the corner triangular wall 102a is a major structure that connects with the pc structure vertically and horizontally, as shown in FIG. 6, it is necessary not only to make it firmly, but also to pay attention to the occurrence of settlement, and to never cause a bottle shape in the treatment of the connection part. something to do.

Triangular foundation wall structure

As a triangular base wall 102c structure constituting the dowel bar 110 so that the triangular base wall 102c is fixedly placed on the base plate so as to be inclined and the segment unit assembly 114 can be stacked upward,

The basic structure constituting the triangular part wall 102a is planned to be inclined downward from the backhoe passage for cleaning toward the main wall 101, and the triangular part wall composed of pc panels 95 having different heights from each other in the downward inclined foundation structure (102a) After placing the structure to form a basic structure that connects in the horizontal direction, the dowel bar 110 is formed as shown in FIG. 12 so that the segment unit assembly 114 structure can be stacked on the upper layer. have.

On the other hand, as a method of treating the hollow space between the two panels, the contents described in the "Main/Sub-walls 1-1 and 1-2 structures" are followed.

Connection structure between main wall and triangular wall

As a connection structure that binds the connection between the main wall 101 and the triangular wall 102a using a connection foot 118, a dead wall 119, and an anchor bolt nut (AN),

A connection foot 118 is installed at one end of the triangular wall 102a, and an oblique wall 119 that connects the panel between the connection foot 118 and the triangular wall 102a is installed to reinforce the podium and the oblique wall 119 The anchor bolt nut (AN), which is buried in the concrete between the walls, is used to fasten the connecting feet 118 of the main wall 101 and the triangular part 102a to maintain the rigidity, and at the same time, the corner base wall ( 102d) and the dowel bar (110) connection structure, but when the corner base wall (102d) is constructed in a pc structure, a connection structure is made using a vertical connector 107, and in the case of being constructed in a cast-in-place structure It would be desirable to embed and connect the vertical connector 107 in advance.

Fireproof structure of pc panel

As a fireproof structure that the pc panel 95 is configured to withstand heat,

Since the storage 100 may naturally generate fire, a structure in preparation for this is an essential element. Therefore, when the pc panel 95 is dried, it must be produced as a fireproof structure.To achieve a fireproof structure, a fireproof admixture is first placed in the pc panel 95 structure at a certain thickness, and after curing to some extent, ready-mixed concrete is poured for synthesis. Or, prior to curing the structure in which the ready-mixed concrete forming the pc panel 95 structure is cured, a separately produced fireproof mortar or plaster is placed on one or both sides to cure, or any one of the above materials Selecting the material of the installation and assembly is sprayed on the completed pc panel 95 structure so that it is fixed to the surface, or various methods of applying it with plaster may be applied.

The refractory admixtures include fire mortar, plaster, volcanic ash, and the like, and refractory materials include refractory tiles and fire bricks.

First of all, in order to achieve fire resistance in the pc panel 95 structure, a fire-resistant admixture is placed and a ready-mixed concrete is placed at a time difference, or a ready-mixed concrete is first placed and a fire-resistant admixture is placed at a time difference. (95) In the case of the structure, it is simple to put in an integrated structure without attaching a separate exterior material, and it is a fireproof integrated pc panel (95) structure, so the process is simple, but it is maintained that the original state must be restored after a fire occurs. It is characterized by the disadvantages of non-persistence of management and the fact that the method of first production cannot be applied when restoring to its original state, so the second spraying method or the third method of plastering must be applied.

Second, there can be applied a method of selecting one of the fireproof mortar and plaster, and sticking them to the surface by spraying them, which is a PC panel 95 in a state in which all the structures of the pc panel 95 are dried and assembled. ) Since it is a spray-and-paste method on the entire structure, it may be somewhat positive in terms of air and construction costs, but in this method, it is repelled by the wet and dry spray-and-paste methods and the consumption rate is high, so appropriate adsorption technology should be applied.

Third, it is possible to apply a method of selecting any one of the above materials and applying the surface by plastering, which is the front of the pc panel 95 structure in a state in which all of the pc panel 95 structures are dried and assembled. In the method of spraying water and plastering after a certain period of time, a lot of manpower is put in and proceeds over a long period of time, so the cost of construction and construction may be somewhat negative, but material loss will not occur as in the second method.

Fourth, there is a method of adding a fireproof tile produced by selecting one of the above materials to the structure, but the construction process is complicated and the life of the tile may not be permanent. If the tile is damaged, it is fireproof. There is a disadvantage in that the performance cannot be exhibited, or a method of mixing a fireproof mixture when placing a ready-mixed concrete and pouring it into a pc panel structure can be applied. The production cost of the pc panel 95 will be determined, and since it is an integrated pc panel 95 that is fireproof, the process is simple and maintenance is not required, while the production price can be increased and the rigidity of the body structure There is a downside that can be degraded.

Separately, there is a method of attaching fireproof sheet paper such as wallpaper to the structure, but it is judged that the adhesive strength will be weakened by heat, and if it is maintained for a long period of time, it may fall out or be lifted or deformed, and when coal is mined in the storage by equipment It should be avoided because it is judged to be less effective because damage may be applied.

As described above, according to each site condition, the user should select an appropriate product and method by carefully examining the characteristics of the above four cases.

Construction method of the storage space forming the main wall and the side wall

In the construction method of the PC structure constituting the indoor coal storage 100 of the thermal power plant 90, the construction method

(1) replacing the ground so that the settlement of the coal reservoir 100 due to the load of its own weight and external force is within the allowable value;

(2) The step of installing foundation piles 112 in the ground at the bottom of the storage room to prevent differential settlement of the structure

(3) Step of closing the foundation pile 112 and installing an enlarged base 113 plate for installing the main wall 101 and the minor wall 102, which are the main structures upward,

(4) In the process of manufacturing the main wall 1-1 as a pc, a pc structure is selected by selecting one of the methods of pouring ready-mixed concrete mixed with refractory material or placing fire-resistant mortar and plaster, or manufacturing and attaching them with tiles. After manufacturing, the step of assembling the pc panels 95 on both sides to form a segment unit assembly 114, and installing a truss structure or filled concrete 111 in the inner hollow space

(5) After the process of (4) is completed, the step of installing a sub-wall 102 connected to the main wall 101 to stabilize the main wall 101

(6) Step of laminating construction while gradually repeating the processes of (4) and (5)

(7) When the fireproof pc panel 95 of the above (4) process is not produced, a storage structure in which the segment unit assembly 114 formed of the pc panel 95 is combined is formed, and the surface of the structure is made of fireproof mortar and plaster. One of the methods of spraying or plastering is selected to form a fireproof structure.

AN; Anchor bolt nut BN; Tightening bolt nut
90; Thermal power plant 95; pc panel
100; Coal storage 101; Main wall
102; buttress
102a; Triangular wall 102b; Straight wall
102c; Triangular foundation wall 102d; Corner foundation wall
103; Main wall panel 104; triangular wall panel
105; Flat wall panel 106; T-shaped structure
107; Vertical connector 108; Horizontal connector
109; Spacing material 110; Dowel bar
111; Filled concrete 112; Foundation pile
113; Expanded basics 114; Unit assembly
115; Inspection window 116; L-beam
117; Extruded reinforcement 118; Connection foot
119; Slope 120; Gusset steel plate
121; Individual structure

Claims (17)

To convert the coal storage (100) of the thermal power plant (90) from the existing cast-in-place construction to precast construction, manufacture the pc panels (95), interconnect them and arrange them at intervals, and to reinforce fire resistance due to the ignition of coal. In implementing, the pc structure is
The primary of both the hollow panels of the individual assembly 121 and the segment unit assembly 114 that form the coupling between the pc panels 95 with vertical and horizontal connectors and space retaining members 107, 108, and 109 so that the two panels achieve a constant clearance distance. Main/minor wall 1-1 structure;
The main and sub-wall 1-1 structure The primary main and sub-wall 1-2 structure is configured to be integrated by bonding the panels to each other because a structural material is installed inside the hollow or filled concrete 111 is filled;
The secondary main and sub-walls 101 and 102 structure segment unit assembly 114 is installed and assembled as the upper layer of the primary main and sub-wall structures 101, 102, but is arranged in a zigzag manner to deviate from the horizontal joint position of the primary main and sub-wall structures. The secondary main and secondary wall 2-1 and 2-2 structures of both panels;
A connection structure between the triangular wall 102a and the straight wall 102b;
A connection structure between the straight wall 102b;
Main wall 101 forming a T-shaped upper structure;
A structure that binds the inner hollow structure inside the main and sub-walls 101 and 102 with the enlarged foundation 113 and interconnects the enlarged foundation 113 and the foundation pile 112 to support the main and sub-walls 101 and 102 structures;
The structure of the corner base wall 102d and the segment unit assembly 114 connected to the upper side by a dowel bar 110 connection structure and a triangular base wall 102c connected laterally;
A triangular base wall 102c constituting the dowel bar 110 so that the triangular base wall 102c is fixed to be inclined on the base plate and the segment unit assembly 114 is stacked upwardly;
A connection structure that binds the connection between the main wall 101 and the triangular wall 102a by using a connection foot 118, a dead wall 119, and an anchor bolt nut (AN);
A PC structure constituting an indoor coal storage of a thermal power plant, characterized in that it is installed including a fireproof structure configured to withstand heat by the pc panel 95
The method of claim 1,
The segmented pc panel 95 of the structure constituting the coal storage 100 is manufactured to have a certain thickness, and it is composed of individual assemblies that are arranged in a row in one side and arranged in a row in the opposite direction, or pre-fabricated in a certain place. An indoor coal storage of a thermal power plant, characterized in that the interior is made of a hollow structure by using a structural material to achieve structural durability and safety by bonding both panels or filling with filled concrete 111. PC structure
The method of claim 2,
The panels on both sides are connected to the vertical part and the horizontal part by using vertical and horizontal connectors (107, 108),
The vertical connector 107 has a function as a spacer 109 and has an I-shaped shape and is installed so that the flange is in contact with the inner wall surface of the panel between the main wall and the sub-wall, but in the case where the main wall is stacked The web length is installed while maintaining a certain length and horizontal distance of the web, and when the triangular wall (102a) is stacked , the angle between the web and the flange surface is bent by an acute angle on one side and an obtuse angle on the other side. It is manufactured and installed differently depending on the location, and the vertical connector 107 in the straight wall 102b allows the use of a ready-made H steel type, and the arrangement is made with an I steel type flange on the upper and lower sides of each structure as one vertical connector. Arranged in a bundle with (107) and fastened with the I-steel flange,
The horizontal connector 108 does not cover the main wall 101, the triangular wall 102a and the straight wall 102b, and connects the panels in a transverse direction using a T-steel type, but arranges the left and right panels in a row, and Attaching a number of anchor bolt nuts (AN) to both sides by placing it on the upper and lower ends of the connection,
PC structure constituting the indoor coal storage of a thermal power plant, characterized in that it is installed in a zigzag manner so that the joints become clogged joints when stacking the pc panels 95
delete The method of claim 2,
There is a truss structure using L-beam 116 as an inner structural member of the segment unit assembly 114 and the individual assembly 121,
The vertical connector 107 and the horizontal connector 108 and the space retaining material 109, and the L-beam 116 on the gusset steel plate 120 installed on these connectors, are connected to the pc panel at the opposite position in the hollow structure between the two panels. Install a truss structure that connects the gusset steel plate 120 of the connecting members to form an'X' shape, and binds the part where the'X' meets the gusset plate 120 with a fastening bolt nut (BN), It is manufactured in a detachable manner so that the pc panel, which is difficult to reuse, can be replaced when damage occurs.
In order to form a combination with the foundation pile 112, reinforcing bars are laid at the lower end of the primary main/sub wall 102 structure at a certain height, and filled concrete 111 is poured so that the bond with the foundation pile is made. In order to install a facility that allows entry and exit, a staircase connecting the top and bottom of the L-beam 116 of a truss structure is installed, but it is prepared from the floor to the top floor of the main/wall structure to prepare for emergencies. PC structure that makes up the indoor coal storage
The method of claim 2,
As a structural material of the segment unit assembly 114 and the individual assembly 121, a structure in which filled concrete 111 is poured into the hollow structure,
When both panels are manufactured, the protruding reinforcing bar 117 is inserted into the inner surface to facilitate adhesion with the filled concrete 111 to be filled in the hollow space, and the primary filled concrete 111 leaves a certain amount of space on the upper floor. Filling only enough to form an integral part with the foundation pile 112, secure a space for fastening vertical and horizontal connectors 107, 108 when stacked as an upper layer, and prepare the secondary filled concrete 111 before the primary filled concrete 111 hardens. PC structure constituting the indoor coal storage of a thermal power plant, characterized in that it prevents the occurrence of cold joints by pouring and facilitates vibrating.
The method of claim 1,
In the connection structure between the triangular wall 102a and the straight wall 102b, the vertical and horizontal connections are fastened using a fastening bolt nut (BN) with only the H steel type so that it can be connected at any part of the straight wall 102b. Due to this difficult relationship, a hole is made in the H steel flange in advance, and a nut is welded inside to attach one side and the other side of the flat wall 102b to be fastened from the outside.
The internal hollow space can be filled or placed in a hollow structure. In the case of filling the hollow structure, it may be difficult to form a space for pouring the filled concrete 111, so the length of the horizontal connector 108 is shortened or a hole is made in the web. Makes the filling of concrete (111) smooth,
In the triangular part (102a), a PC structure constituting the indoor coal storage of a thermal power plant, characterized in that a gap retaining material (109) is installed near the bent part
The method of claim 1,
Since the upper end of the main wall 101 forms a T-shaped structure 106, a steel column that can support the steel structure roof forming the outer shell is fixed to the T-shaped structure 106 of the main wall to improve the stability of the steel structure. When the main wall 101 of the last stage is installed and assembled on the top floor, the L-shaped steel 116 is bound to the gusset steel plate 120 of the vertical connector 107 and the horizontal connector 108 and the spacing member 109 inside the hollow. Since a truss structure in the shape of an'X' is installed or filled concrete 111 is poured, the top of the T-shaped structure 106 is a pc panel so that the panels on both sides do not open due to vertical force and the top of the T-shaped structure 106 is (95) PC structure that constitutes an indoor coal storage of a thermal power plant, characterized in that it is covered with a lid and any one place is opened so that a person can enter or enter it.
The method of claim 1,
The corner base wall (102d) can be a pc structure or a cast-in-place structure. In the case of a pc structure, the corner is made to be inclined and connected with a horizontal connector 108 and the interior is made a hollow structure. It is to bind, and in the case of a cast-in-place structure, an indoor coal storage of a thermal power plant, characterized in that it can be manufactured to connect the pc structure and the cast-in-place structure in a dowel bar (110) method for bonding with a nearby pc structure. PC structure made up
The method of claim 9,
The basic structure forming the triangular part wall (102a) is planned to make a downward slope in the direction of the main wall 101 from the backhoe passage for cleaning, and the triangular part wall (102a) composed of pc panels 95 having different heights from each other in the downward sloped foundation structure ) After the structure is placed and fixed to form a basic structure that connects in the horizontal direction, a structural material can be installed or filled concrete 111 is filled, and the segment unit assembly 114 and the individual structure 121 can be stacked on the upper layer. PC structure constituting the indoor coal storage of a thermal power plant, characterized in that to form the basic structure constituting the dowel bar (110)
The method of claim 1,
A connecting foot 118 is installed at one end of the triangular wall 102a, and an oblique wall 119 connecting the panel of the connecting foot 118 and the triangular wall 102a is installed to reinforce the podium and between the oblique walls 119. An anchor bolt nut (AN) is used between the main wall 101 and the connecting foot 118 of the triangular part 102a are fastened, and at the same time, the dowel bar 110 connection structure with the corner base wall 102d is formed. However, when the corner base wall (102d) is constructed in a pc structure, a connection configuration is achieved using a vertical connector 107, and in the case of being constructed in a cast-in-place structure, the vertical connector 107 is embedded in advance and then connected. PC structure constituting the indoor coal storage of a thermal power plant, characterized in that
The method of claim 1,
The side that is in contact with the coal ash as a binding material between the PC panel 95 of the main and secondary walls constituting the coal storage 100 and the vertical connector 107, the horizontal connector 108, and the gap retaining material 109 installed inside the hollow space An anchor bolt nut (AN) is used for this, and a fastening bolt nut (BN) is used on the side not in contact with the coal ash . The coal storage 100 of the thermal power plant 90 is the temperature of the pc panel 95 due to ignition. It is characterized by using an anchor bolt nut (AN) that has a fastener embedded in the concrete on the side that is in contact with the coal ash, and the fastening bolt nut (BN) that is fastened from both inside and outside the side that does not contact the coal ash. PC structure that forms the indoor coal storage of a thermal power plant
The method of claim 1,
As a method for producing the pc panel 95 of the coal storage as a fireproof structure, it is a case where ready-mixed concrete and refractory admixture are mixed and produced.The performance and production cost of the pc panel 95 product can be determined according to the thickness of the fire admixture. First, fire-resistant mortar or plaster is poured to a certain thickness, and ready-mixed concrete is poured before it hardens after a certain period of time, or ready-mixed concrete is placed first, and fire-resistant mortar or plaster is poured again before it hardens after a certain time. PC structure constituting the indoor coal storage of a thermal power plant characterized by a pc panel (95)
The method of claim 13,
The above fireproof mortar or plaster is mixed with water to make it wet or dry without mixing with water, and a method of fixing it to the surface by spraying is applied, but the pc panel (95) structure is PC structure constituting the indoor coal storage of a thermal power plant, characterized in that the front of the pc panel 95 is sprayed and pasted in a dry and assembled state
delete The method of claim 13,
A method of adding fireproof tiles and firebrick produced from the above fireproof mortar or plaster and materials of volcanic ash to the structure of the pc panel 95 or mixing the fireproof admixture when placing ready-mixed concrete and pouring it into the structure of the pc panel 95 PC structure constituting the indoor coal storage of a thermal power plant, characterized in that the method is
In the construction method of the PC structure constituting the indoor coal storage (100) of the thermal power plant (90) according to any one of claims 1 to 3, 5 to 14, 16 , the construction method silver
(1) replacing the ground so that the settlement of the coal storage 100 due to the load of its own weight and external force is within the allowable value;
(2) The step of installing the foundation pile 112 in the ground at the bottom of the storage room to prevent differential settlement of the structure
(3) A step of closing the foundation pile 112 and installing an enlarged base 113 plate for installing the main wall 101 and the minor wall 102, which are the main structures upward.
(4) In the process of manufacturing the main wall 1-1 as a pc, a pc structure is selected by selecting one of the methods of pouring ready-mixed concrete mixed with refractory material or placing fire-resistant mortar and plaster, or manufacturing and attaching them with tiles. After manufacturing, the step of assembling the pc panels 95 on both sides to form a segment unit assembly 114, and installing a truss structure or filled concrete 111 in the inner hollow space
(5) After the process of (4) is completed, the step of installing a minor wall 102 connected to the main wall 101 for stabilization of the main wall 101
(6) Step of laminating construction while the processes of (4) and (5) are gradually repeated
(7) When the fireproof pc panel 95 of the above (4) process is not produced, a storage structure in which the segment unit assembly 114 formed of the pc panel 95 is combined is formed, and the surface of the structure is made of fireproof mortar and plaster. Construction method of PC structure constituting the indoor coal storage of a thermal power plant, characterized in that the construction is constructed to form a fireproof structure by selecting any one of spraying or plastering methods

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