JP3241660U - Concrete Laminated Divider Wall Member - Google Patents

Abstract

A concrete laminated dividing wall member is provided, which is made by laminating concrete on a wall member used for an arch-shaped structure divided into predetermined sizes, and which can be easily transported to the installation site of the structure. Kind Code: A1 In an arch-shaped structure constructed by combining wall members 10 formed by bending a corrugated steel material with a predetermined curvature in a direction orthogonal to a corrugation direction, the wall members are divided wall members 10P divided into predetermined sizes. a dowel and wire mesh fixed to the outer side of the corrugated steel; a formwork member fixed to the corrugation direction end of the corrugated steel; a formwork member fixed to the end perpendicular to the corrugation direction; A connecting portion A for connecting the dividing wall members in the corrugation direction and a connecting portion B for connecting the dividing wall members in a direction perpendicular to the corrugating direction are provided. are connected at joints to form a concrete laminate arch-like structure. [Selection drawing] Fig. 1

Description

The present invention is a divided wall member in which a wall member of an arch-shaped structure constructed using corrugated steel material with a large section modulus is divided into predetermined sizes, and concrete of a predetermined thickness is laminated and fixed to the outside of the divided wall members. Regarding.

The applicant has proposed various arch-shaped architectural structures as arch-shaped architectural structures made by combining corrugated plates with a large section modulus, such as large deck plates, keystone plates, and deck plates, which are bent at a predetermined curvature in the longitudinal direction. proposed by For example, the applicant discloses an arched building structure reinforced by reinforcing members in US Pat.

The arch-shaped building structure disclosed herein is a structure mainly used in various warehouses, factories, processing plants, etc. Such an arch-shaped structure has sufficient strength and durability and can be used as a wall material. At the same time, it is possible to easily realize a columnless structure that can withstand stresses from above and from the sides and that can secure a large internal space. In addition, the structure can reduce the manufacturing cost and shorten the manufacturing period.

The applicant also proposes a shelter using such an arch-shaped structure. Patent Document 3 discloses an eruption disaster prevention shelter that has strength enough to withstand volcanic ash and cinders and does not impair the natural landscape of mountains. In Patent Document 3, the outside of the arch-shaped structure is covered with natural stones, etc., but the purpose of the covering with natural stones, etc., is to maintain the natural scenery of the mountain and to ensure the strength of the structure. not something to do. In Patent Document 4, due to frequent intrusions into Japanese territorial waters and airspace such as the Senkaku Islands by China and Russia, the number of scrambles of Self-Defense Forces fighters has occurred frequently. Applicant discloses a fighter hangar that allows for reduced travel time to and from.

In addition, there are Patent Documents 5 and 6 as prior documents of concrete and house-type disaster prevention shelters, but concrete shelters require a high construction cost and a long construction period, and sufficient strength cannot be ensured. There is Patent Document 7 as a prior document of a shelter using concrete. This document discloses a method of constructing a concrete shelter with reinforced concrete walls, ceiling and floor. In the technique disclosed here, concrete for forming a wall is placed between a ventilation panel and a concrete panel, and after the concrete has hardened, the concrete panel is separated from the concrete to complete the wall, and the deck plate After the concrete hardens, the ceiling is completed, the concrete is placed on the bottom of the steel frame positioned on the foundation of the shelter, and after the concrete hardens, the floor is laid. configured to complete. This document does not disclose the construction of laying concrete on the outside of the walls of the arched structure using corrugated steel.

US Pat. No. 6,200,000 discloses synthetic segments for shield construction. In this document, by giving the function of a shear pin to the width bar that maintains the gap between the main girders, it is possible to prevent the circumferential displacement of the segments without increasing the number of inter-ring bolts that connect the segments. Disclosed is a synthetic segment for a shield construction method of a tunnel construction method that can reliably prevent the This segment is used in the shield construction method, which is one of the tunnel construction methods, and does not disclose a segment of an arch-shaped structure having concrete laminated on the outside.

In recent years, North Korea has launched a series of missiles, China has conducted exercises to invade Taiwan by force, and Russia has invaded Ukraine. In line with such changes in the world situation, Japan is considering establishing SDF bases and garrisons on the Nansei Islands, such as Yonaguni Island and Mage Island. Such facilities of the Self-Defense Forces are required to install shelters that are strong enough to withstand bombings, missile attacks, falling missile fragments, etc., and that are large enough to accommodate a certain number of people.

In urban areas, the use of subways and underpasses is being considered as evacuation sites for people in the event of an emergency. Installation of safe and strong shelters is desired. Furthermore, stronger structures are required to protect climbers from disasters caused by volcanic eruptions.

JP-A-5-44227 JP-A-8-135221 Utility Model Registration No. 3205709 Utility Model Registration No. 3215010 JP 2016-65438 A JP 2014-12966 A JP 2010-127041 A JP 2015-161103 A

In line with such changes in the world situation, in order to ensure the safety of SDF personnel and local residents, particularly at the SDF bases and camps in the Nansei Islands, it is possible to secure sufficient strength to withstand bombing and missile attacks, etc., and to secure a certain number of personnel. The applicant has developed a concrete laminated arch-shaped structure that can be easily constructed in a short period of time and at a low cost while ensuring a space large enough to accommodate it.

However, the arch-shaped structure using the corrugated steel material manufactured in the factory and the arch-shaped structure of concrete lamination are heavy, and it is extremely difficult to transport them to remote islands, mountainous areas, and the like. Therefore, the wall member of the arch-shaped structure using the corrugated steel material is divided into an arbitrary number, for example, 2, 4, or 6, and divided wall members of lightweight sizes are used, and concrete is laminated and fixed to the divided wall members. It occurred to the applicant to manufacture the in a factory. The applicant came up with the idea of transporting factory-manufactured concrete laminated dividing wall members to the installation site (site) of the Self-Defense Forces base, garrison, etc., and connecting and assembling these dividing wall members on site. . The concrete laminate partition wall members according to the present invention are interlocked and assembled to form a concrete laminate arch-like structure.

The problem to be solved by the present invention is to divide the wall member of the arch-shaped structure using corrugated steel material into predetermined sizes, and laminate and fix concrete on the outside of the divided wall member, so that the structure can be easily installed at the installation site. To provide a concrete laminated partition wall member that can be transported to Another object of the present invention is to provide a concrete laminated arch-shaped structure which has increased strength and which can be manufactured and constructed at low cost in a short period of time.

The present invention uses wall members of an arch-shaped structure constructed using corrugated steel materials that are bent in a direction orthogonal to the corrugation direction with a predetermined curvature. It is a laminated concrete dividing wall member obtained by dividing the wall member into light-weight sizes and laminating and fixing concrete of a predetermined thickness on the outside of the divided wall member. The concrete laminate dividing wall members of the present invention are interconnected and assembled to form a concrete laminate arch structure.

The concrete laminated partition wall member according to the present invention is a plurality of wavy wall members 10 formed by bending a wavy steel material 11 with a predetermined curvature in a direction orthogonal to the wavy direction X, and connecting a plurality of wall members in the wavy direction. In an arch-shaped structure in which the two walls 20 are connected to each other at the zenith 12 in the direction Y orthogonal to the corrugation direction to form an arch shape, and the bottom edge of the wall is fixed to the base material 30 , the wall member is a dividing wall member obtained by dividing the wall member into predetermined sizes, and the dividing wall members 10P1 to 10Pn are
A dowel G projecting outward and fixed to the outer portion of the corrugated steel material, a wire mesh WM disposed at a predetermined height and fixed to the outer portion of the corrugated steel material, and waves of the corrugated steel material projecting outward. A formwork member 14 is fixed to the end of the corrugated steel member in the direction X to define a concrete lamination region, and the concrete lamination region is defined by protruding outward and being fixed to the end of the corrugated steel in the direction Y perpendicular to the corrugation direction. Formwork members 15, connecting portions A connecting adjacent dividing wall members in the corrugating direction X, and connecting portions B connecting adjacent dividing wall members in the direction Y orthogonal to the corrugating direction. ,
A dowel and a wire mesh are embedded on the outside of the dividing wall member, and concrete 13 of a predetermined thickness is laminated and fixed along the form member. It is configured to be connected and assembled to form a concrete laminate arched structure.

The dividing wall members P1 to n according to the present invention use a large deck plate as the corrugated steel material 11, and the dividing wall member according to the present invention has a width in the corrugation direction X of 50 to 250 cm, preferably 100 cm. Up to 200 cm, more preferably 50 to 150 cm, and the vertical width size in the direction Y perpendicular to the corrugation direction is the size divided into two with the vertex as the dividing point, or the size divided into two is further divided into two. characterized by

In addition, the connecting portions A and B according to the present invention include flanges Fa, Fb, Fc, and Fd fixed to one or both ends of the corrugated steel material 11 in the corrugation direction X and the direction Y orthogonal to the corrugation direction, The flanges are fitted with bolts on one side and nuts with which the bolts engage on the other side. It is characterized in that a space BOX is formed so that the adjacent dividing wall members can be connected by passing the bolt insertion hole and accumulating the nut.

According to the present invention, a wall member of an arch-shaped structure constructed using corrugated steel is divided into predetermined sizes, and concrete of a predetermined thickness is laminated and fixed on the outside of the divided wall members at a factory. Since the laminated concrete partition wall member is lightweight and small in size, it can be easily transported to an installation site such as a remote island. Construction and installation on remote islands and mountainous areas becomes easier. In addition, since the arch-shaped structure of the concrete laminate is further laminated and fixed with concrete having excellent fire resistance, heat resistance, and durability on the outside of the wall, the strength of the arch-shaped structure constructed using corrugated steel can be further increased, it has sufficient strength to withstand bombing, etc., and can be constructed at low cost in a short period of time.

Since the concrete laminated dividing wall member of the present invention uses a large deck plate as the corrugated steel material, it is possible to reduce the weight of the dividing wall member itself and the entire concrete laminated arch structure to be constructed. The connection part according to the present invention is formed with a space BOX that enables connection processing between adjacent dividing wall members, and the connection processing is performed by tightening bolts and nuts, so that the adjacent dividing wall members can be connected. The treatment can be carried out relatively easily and in a short period of time.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external view schematically showing a configuration example of a concrete laminated dividing wall member according to the present invention and an overall configuration of a concrete laminated arch-shaped structure assembled by connecting the dividing wall members; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side cross-sectional view of a concrete laminated dividing wall member and a concrete laminated arch structure assembled by connecting the dividing wall members according to the present invention; 1 is a cross-sectional view of a concrete laminate dividing wall member according to the present invention in a corrugation direction; FIG. FIG. 3 is a plan view of the concrete laminate dividing wall member according to the present invention in the corrugation direction; 1 is a vertical cross-sectional view of a laminated concrete dividing wall member according to the present invention in a direction orthogonal to a corrugation direction; FIG. FIG. 3 is a plan view of the laminated concrete dividing wall member according to the present invention in a direction perpendicular to the corrugation direction;

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, all of these embodiments are exemplifications and do not give a restrictive interpretation of the present invention. In the following description, elements having the same functions and configurations are given common reference numerals.

First, the manufacture of the wall member used for the concrete laminated partition wall member according to the present invention and the arch-shaped structure constructed by the wall member (hereinafter also referred to as "arch-shaped structure made of steel material") will be described. The wall member is a corrugated steel material that is bent with a predetermined curvature in a direction orthogonal to the corrugation direction. As shown in FIGS. 1 to 3, the steel arch-shaped structure has a corrugated steel material 11 called a large deck plate whose cross section is corrugated (a continuous U-shaped groove is formed) as the main structural material. It is.

The wall member 10 is manufactured in a factory by bending the corrugated steel material along the direction Y orthogonal to the corrugation direction so that it has a predetermined curvature at least partially or entirely. A plurality of these wall members are connected in the corrugation direction X to form a wall portion 20, and the two wall portions connecting the wall members are connected at the zenith portion 12 by a connecting member by welding, bolting, or other means to form an arch shape. Form. The bottom edge of the wall is fixed to a foundation 30, which may be configured to receive anchor bolts for securing the arched structure to the ground. The wall member 10 is a main component of the steel arch-shaped structure.In the present invention, the wall members of a predetermined width and length used in the steel arch-shaped structure are made into an arbitrary number of lightweight sizes. In the factory, the walls are divided and concrete is laminated and fixed to the outside of the divided wall members.

Although FIG. 2 shows a configuration example in which adjacent wall members and wall portions are connected to each other by bolts and nuts at the zenith portion 12, the wall members and wall portions are connected and joined according to the waveform of each corrugated steel material. Adjacent corrugated steel members may be joined together by bolts through bolt holes drilled along both ends, or may be welded together during on-site assembly operations. Such a steel arch-shaped structure is a columnless structure, and since the corrugated steel itself is the main structural material, it has sufficient strength and a wide space.

Next, an embodiment of a laminated concrete dividing wall member (hereinafter also simply referred to as "this dividing wall member") according to the present invention will be described with reference to FIGS. 1 to 6. FIG. FIG. 1 is an external view showing an outline of a structural example of the dividing wall member and an overall structural example of a concrete laminated arch-shaped structure assembled by connecting the dividing wall members. 2 is a side cross-sectional view of the structure in FIG. 1, FIG. 3 is a cross-sectional view of the dividing wall member in the corrugation direction X, and FIG. 4 is a plan view of the dividing wall member in the corrugation direction X. FIG. FIG. 5 is a longitudinal sectional view in a direction Y orthogonal to the corrugation direction of the dividing wall member, and FIG. 6 is a plan view in a direction Y orthogonal to the corrugating direction of the dividing wall member.

In FIG. 1, the dotted line indicates a steel arch-shaped structure formed below the concrete layer. In FIG. 1, the vertical width size of the dividing wall member in the direction Y perpendicular to the corrugation direction is divided into two by using the vertex as the dividing point, and the size is further divided into two. The divided main dividing wall member 10P is shown. In addition, FIG. 1 shows a configuration example of a concrete laminated arch-shaped structure assembled by connecting 16 divided main dividing wall members. Concrete is shown hatched in FIGS.

The dividing wall members 10P1 to 10Pn are wall members used for a steel arch-shaped structure, and are bent and have a width size of, for example, 50 cm, and a length from the base to the top (vertical size). For example, a wall member with a vertical size of 300 cm is cut and divided into an arbitrary number of lightweight sizes, and concrete 13 of a predetermined thickness is laminated on the outside of the divided wall member (hereinafter also referred to as "steel divided wall member"). It is fixedly configured. The dividing wall members, to which the concrete is laminated and fixed, are connected to each other to form an arch-shaped structure in which the concrete is laminated.

The steel dividing wall member includes a dowel G, a wire mesh WM, a formwork member 14, a formwork member 15, and connecting portions A and B. Concrete 13 is laminated and fixed to the outside of the steel dividing wall member along the form member with a predetermined thickness, with dowels and wire meshes embedded therein. The concrete-laminated dividing wall members are connected to each other at connecting portions A and connecting portions B, that is, in the corrugation direction X and in the direction Y perpendicular to the corrugation direction to form an arch-shaped structure in which concrete is laminated. do.

The corrugated steel materials used for this dividing wall member include not only a large deck plate but also a keystone plate and a deck plate. A large deck plate is used to reduce the weight of the entire arch-shaped structure.

The dividing wall member can have an arbitrary width size in the corrugation direction X, for example, 50 to 250 cm, 100 to 200 cm, or 50 to 150 cm. The size can be any size (number), for example, a size that is divided into two using the vertex as a dividing line, or a size that is a quarter of the entire size obtained by further dividing the divided size into two. In this dividing wall member, concrete is layered and adhered to the outside of steel dividing wall members divided into sizes and numbers as exemplified by pouring or spraying along the form members.

If the scale of the concrete-laminated arch-shaped structure assembled and constructed by connecting the dividing wall members is large, the horizontal width of the dividing wall member in the corrugation direction X is set to a small size, such as 50 cm to 100 cm. , the number of divisions of the wall member is increased such that the vertical width size in the direction Y perpendicular to the corrugation direction is, for example, 1/4, 1/6, 1/8, or 1/10 of the entire size. In this way, by reducing the width size and increasing the number of divisions in the vertical direction to reduce the size of the dividing wall member, it is possible to easily transport the dividing wall member to the site.

The length and size of the steel wall members to be used will be determined according to the size (scale, size) of the arch-shaped structure to be constructed, and the weight of the dividing wall member will be reduced corresponding to this size. Then, the division number and size of the steel wall member are determined. If the frontage of the structure to be constructed is wide, the number of divisions of the steel dividing wall members will be increased in order to use long corrugated steel members, and if the frontage is narrow, the number of steel dividing wall members will be increased in order to use short corrugated steel members. Decrease the number of divisions. The frontage dimension of the structure can be adjusted by using connecting members with different lengths, and by changing the bending curvature of the corrugated steel material. It can be expanded or contracted to any size by increasing or decreasing the number of connections.

As shown in FIGS. 3 and 5, the dowel G is fixed to the outside of the corrugated steel material of the steel dividing wall member so as to protrude outward. The dowel is fixed to the corrugated steel material by welding, screwing, or the like, and strengthens the adhesion of the concrete to the corrugated steel material so that the concrete and the corrugated steel material are integrated. The dowel is a steel bar or metal bar with a T-shaped head, and may be configured such that the bolt with the head is screwed into the steel material.

As shown in FIGS. 3 and 5, the wire mesh WM is arranged at a predetermined height on the outer side of the corrugated steel of the steel dividing wall member and fixed to the corrugated steel, dowel, form member, or the like. A wire mesh reinforces concrete by assembling reinforcing bars, stainless steel, etc. in a lattice like a net, and attaching and fixing it to a portion where concrete is laminated and fixed. The height of the installation position of the wire mesh is determined by the thickness of the laminated concrete, but it is preferable to install the wire mesh at the middle part of the concrete layer. The ends are fixed to the corrugated steel or formwork members, and a wire mesh, reinforcing bars, or the like are stretched around the intermediate portion of the concrete layer outside the corrugated steel in a net-like manner.

The formwork member 14 defines a region where concrete is to be laminated, and as shown in FIG. 3, is fixed so as to protrude outward from the corrugated-direction X end of the corrugated steel material of the steel dividing wall member. The formwork member 15 defines a region where concrete is to be layered, and as shown in FIG. be done.

The formwork members 14, 15 are attached to the ends of the corrugated steel members so as to protrude outward and function as formwork for demarcating the concrete lamination area in the concrete pouring or spraying process. The material of the formwork member can be an iron plate, steel material, etc. Here, the corrugated steel material functions as a formwork on one or both ends of the corrugated direction X or the direction Y orthogonal to the corrugated direction. The iron plate is fixed to the corrugated steel material by welding or the like facing outward. The formwork members 14 and 15 remain as part of the concrete laminated arch-shaped structure without being removed even after the concrete has hardened.

As shown in FIGS. 1 to 6, the concrete 13 is embedded with a dowel G and a wire mesh WM inside, and is cast or sprayed along the formwork members 14, 15, and 16 to the outside of the steel dividing wall members. It is laminated and fixed to a predetermined thickness. Concrete is excellent in fire resistance, heat resistance, and durability. Since the dividing wall members are laminated with concrete, it is possible to prevent temperature rise in the interior of the concrete-laminated arch-shaped structure assembled by connecting the dividing wall members and to increase the strength of the arch-shaped structure.

The thickness of the concrete laminate is determined according to the application of the arch-shaped structure, and it is preferable to make it thicker for shelters and fighter hangars that require high strength, such as those used at Self-Defense Forces bases. Lamination of concrete may be done by pouring or spraying on the inside of the form members. When the concrete is to be laminated thinly on the outside of the steel dividing wall member, the concrete spraying process is preferable on the inside of the formwork member, and when the concrete is to be laminated thickly, the concrete placing process is preferable. The concrete layering process is completed, and the concrete is dried and solidified to complete the main dividing wall member. The concrete-laminated arch-shaped structure constructed by connecting the dividing wall members has a structure in which concrete is laminated on the outside of the steel-made arch-shaped structure that secures sufficient strength and a wide internal space as described above. It is.

The connecting portion A is a structural portion that connects adjacent dividing wall members in the corrugation direction X as shown in FIGS. It is a structural part that connects each other in the direction Y orthogonal to the corrugation direction. The dividing wall members laminated with concrete are connected to each other in the corrugation direction X and in the direction Y perpendicular to the corrugation direction at the joints A and B, and assembled to form an arch-shaped structure in which concrete is laminated. will form. The dividing wall members manufactured at the factory are transported to a site such as a Self-Defense Forces base, etc., and the dividing wall members are connected and assembled at the site to construct a concrete laminated arch-shaped structure. The constructed concrete laminated arch-shaped structure is a structure in which concrete having excellent heat resistance and the like is further laminated on the outside of the wall portion of the steel arch-shaped structure. Although FIG. 1 shows a configuration example in which one connecting portion A and one B are provided, the number of connecting portions A and B is not limited to this, and the number of connecting portions A and B is not limited to the size of the dividing wall member. can be arbitrarily selected by , and two or more can be arranged.

2 to 6 show an example of connecting adjacent dividing wall members with bolts and nuts, which will be described later, but the connecting processing of dividing wall members is not limited to this. One of the corrugation direction X of the corrugated steel and the direction Y orthogonal to the corrugation direction between the ends of the corrugated steel, between the formwork members fixed to the ends, between the ends of the corrugated steel and between the formwork members, or between the corrugation direction X and the corrugation direction Alternatively, the adjoining dividing wall members can be connected by welding the flanges that are affixed to both ends and joining them together. This welding connection process is carried out in the construction of the connection assembly of the dividing wall members on site. Whether the connection process is welding connection or connection by bolts and nuts may be appropriately selected according to the scale and installation location of the concrete laminated arch-shaped structure to be assembled by connecting the dividing wall members. .

As shown in FIGS. 3 to 6, the connecting portions A and B are formed by fixing the flanges Fa, Fb, Fc, and Fd to one or both ends of the corrugated steel material 11 in the corrugation direction X and the direction Y perpendicular to the corrugation direction. A bolt is attached to one flange and a nut with which the bolt engages is attached to the other flange. The mounting portions of these bolts and nuts are surrounded by formwork members 14, 15, and 16, and the bolts are passed through the bolt insertion holes opened in both flanges and the nuts are accumulated to connect the adjacent divided wall members. A blank BOX is formed to allow

The flanges are fixed by welding or the like to one or both ends of the corrugated steel material 11 in the corrugation direction X and the direction Y perpendicular to the corrugation direction. 3 and 5, the flanges are preferably fixed to the corrugated steel 11 from the viewpoint of bond strength, but the flanges may be fixed to the formwork members 14 and 15, and both the corrugated steel and the formwork members may be fixed. A flange may be fixed across.

One flange has bolts and bolt insertion holes for connecting adjacent dividing wall members in the corrugation direction X and the direction Y perpendicular to the corrugation direction, and the other flange has bolt insertion holes and nuts. Install. Adjacent dividing wall members are connected by passing bolts through the bolt insertion holes of the flange and accumulating nuts. In addition, it is possible to screw the bolts to the flanges in advance at the factory, fix the nuts to the flanges, and tighten them on site, or insert the bolts and tighten the nuts on site. It can also be configured for an accumulating tightening operation.

4 and 6, formwork members 14, 15, and 16 are attached to the bolt and nut mounting portions of the connecting portions A and B in order to prevent burying with concrete and secure a space BOX for connecting processing. surrounded by Formwork members 16 surround the mounting portions of bolts and nuts as shown in FIGS. is attached so as to protrude outward. 4 and 6 show a configuration example in which three mounting portions for bolts and nuts are provided, but the number of mounting portions for bolts and nuts is not limited to this. Two or four or more may be arranged depending on the size of the member.

As shown in FIG. 4, the formwork member 14 fixed to the end of the void BOX in the direction Y perpendicular to the corrugation direction defines the concrete lamination area. Functions as a formwork member. As shown in FIG. 6, the ends of the void BOX in the corrugation direction X are formwork members 15 fixed to the ends of the corrugated steel material in the direction Y perpendicular to the corrugation direction, defining the concrete lamination area. function as Therefore, it is not necessary to separately form a formwork member that defines a concrete lamination area for forming the void BOX at the ends of the direction Y orthogonal to the corrugation direction and the corrugation direction X.

By forming a space BOX in the mounting portion of the bolt and nut, the adjacent dividing wall members can be easily connected by inserting the bolt through the bolt insertion hole opened in both flanges and accumulating the nut. It becomes possible to The connecting process of adjacent dividing wall members is carried out on site, and by connecting the dividing wall members together, a concrete laminated arch-shaped structure is constructed. In addition, mounting and installation of flanges, bolts, nuts, bolt insertion holes, formwork members, and empty boxes formed in connection parts A and B are performed at the factory for steel partition wall members, except in special cases. At the factory, concrete is layered and fixed to the dividing wall member having the connecting portion to complete the present dividing wall member.

Making the connection parts A and B into a connection structure using bolts and nuts makes it easier to dismantle the structure for the relocation of the concrete laminated arch-shaped structure, compared to the above-mentioned welding connection. This is advantageous in terms of work efficiency for connecting wall members and the like. The void BOX formed in the connecting portions A and B is filled with rubber packing or the like after the concrete laminated partition wall members are connected and assembled to construct the concrete laminated arch-shaped structure, or the connecting portions are filled. Water leakage can be prevented by closing the space by screwing steel plates or the like on the top and bottom surfaces.

A brief description will be given of the procedure for manufacturing the dividing wall member. First, a wall member (a wall member that is not connected in the apex portion, the corrugation direction, and the direction perpendicular to the corrugation direction) used in the steel arch-shaped structure is bent at a predetermined curvature and has a predetermined width. , lengths of corrugated steel are produced in the factory. Next, this wall member is cut in a direction Y orthogonal to the corrugation direction to an arbitrary vertical size, for example, 1/4 of the whole size, and the divided wall members are divided in an arbitrary horizontal size in the corrugation direction X, for example. The size is set to 100 cm and used as a steel dividing wall member. It should be noted that it is also possible to use a small-sized wall member whose vertical size is, for example, 1/4 of the entire length, as a dividing wall member without dividing and cutting the wall member used for the steel arch-shaped structure. In this case, it is necessary to form the curvature of the dividing wall member to match the curvature of the wall member of the completed arched structure.

Next, the dowel G, wire mesh WM, and formwork members 14 and 15 are attached to the steel partition wall member, and the flanges, bolts, nuts, hollow BOX, and formwork member 16 that constitute the connecting portions A and B are attached and installed. do. Then, concrete is layered on the steel dividing wall member, and the concrete is solidified to complete the present dividing wall member. In the present invention, the above processing steps are carried out at a factory, and the dividing wall members manufactured at the factory are transported to the site and connected and assembled at the site to construct a concrete laminated arch-shaped structure.

Concrete laminated arp-shaped structures assembled by connecting the dividing wall members are suitably used as shelters for defense facilities such as Self-Defense Forces bases and garrisons. This structure is not limited to a shelter for defense facilities, but can also be used as an eruption disaster prevention shelter, a disaster prevention underground shelter, a fighter aircraft hangar, other aircraft repair buildings, various work buildings, and the like. The structure may also be configured with at least four wheels so that it can be freely moved to any desired location. In Fig. 1, the side surface (frontage side) of the concrete-laminated arc-shaped structure is open, but if necessary, an end wall with a desired height and a door with a required size can be installed to close the side surface. be able to.

The concrete laminated partition wall member according to the present invention is made by dividing the wall member into an arbitrary number of lightweight sizes and dividing the wall member into segments obtained by laminating and fixing concrete onto the divided wall members, thereby facilitating transportation to remote islands, etc., especially on remote islands. , It can contribute to the construction and installation of concrete laminated arch-shaped structures at Self-Defense Forces bases such as mountainous areas.

The concrete laminated arch-shaped structure constructed by connecting the concrete laminated partition wall members according to the present invention can be constructed at low cost in a short period of time, and has sufficient strength to withstand bombing and the like. It has a large internal space and is a structure with excellent fire resistance and heat resistance. Therefore, this structure can be expected to be widely used not only as a shelter for defense facilities but also as an eruption disaster prevention shelter, repair buildings for aircraft, etc., and various work buildings.

10 Wall members 10P, 10P1-n Concrete laminated dividing wall member 11 Corrugated steel member 12 Zenith portion 13 Concrete 14, 15, 16 Form member 20 Wall portion 30 Foundation material X Corrugated direction Y of corrugated steel member In corrugated direction of corrugated steel member Orthogonal direction G Dowel WM Wire mesh A Connecting part B connecting in corrugation direction Connecting part Fa, Fb, Fc, Fd connecting in direction perpendicular to corrugation direction Flange BOX Cavity

Claims (4)

A plurality of wavy wall members formed by bending a wavy steel material with a predetermined curvature in a direction perpendicular to the corrugating direction are connected in the corrugating direction, and the two wall portions in which the plurality of wall members are connected are connected in a direction perpendicular to the corrugating direction. In an arch-shaped structure in which the walls are connected to each other at the zenith to form an arch shape, and the ends of the bottom sides of the walls are fixed to the base material, the wall member is a divided wall member divided into predetermined sizes,
The dividing wall member includes a dowel that protrudes outward and is fixed to the outer portion of the corrugated steel, a wire mesh that is arranged at a predetermined height on the outer portion of the corrugated steel and is fixed, and a corrugated portion that protrudes outward. A formwork member that defines a concrete lamination area fixed to the corrugation direction end of the steel material, and a concrete lamination area that protrudes outward and is fixed to the corrugation direction end of the corrugated steel material in a direction orthogonal to the corrugation direction to define the concrete lamination area. a formwork member; a connecting portion that connects adjacent dividing wall members in a corrugating direction; and a connecting portion that connects adjacent dividing wall members in a direction orthogonal to the corrugating direction,
A dowel and a wire mesh are embedded on the outer side of the dividing wall member, and concrete of a predetermined thickness is laminated and fixed along the form member. to form an arched structure of concrete laminations,
A concrete laminated partition wall member characterized by: The corrugated steel material is a large deck plate,
The concrete laminated dividing wall member according to claim 1, characterized in that: The dividing wall member has a width size of 50 to 250 cm in the corrugation direction, and a vertical width size in a direction orthogonal to the corrugation direction is divided into two with the vertex as a dividing point, or the divided size is further divided into two. is the divided size,
The concrete laminated partition wall member according to claim 1 or 2, characterized in that: The connection part has a flange fixed to one or both ends of the corrugated steel material in the corrugation direction and the direction orthogonal to the corrugation direction, and the flange is attached with a bolt on one side and a nut with which the bolt is engaged on the other side. The mounting portion of the bolt and nut is surrounded by a form member, and the bolt is passed through the bolt insertion hole opened in both flanges and the nut is accumulated to enable the connection process between the adjacent dividing wall members. place is formed,
The concrete laminated partition wall member according to claim 3, characterized in that:

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