JP2015145572A - evacuation Tower complex - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an evacuation tower complex that can improve connection strength between evacuation towers and also can maintain connection strength between evacuation towers having been extended even when the projection amount of a member for extension which is exposed to the outside from an existing evacuation tower in an extendable state is decreased.SOLUTION: There is provided an evacuation tower complex such that: a connection member is arranged between a main column material of a first evacuation tower and a girder of a second evacuation tower; the connection member has a main body part arranged at a periphery of the main column material, and a connection part formed to project from the main body part toward the girder of the second evacuation tower and also to taper off in plan view from the main body part toward the girder of the second evacuation tower; the main body part has a main column material fitting hole formed to penetrate corresponding to the main column material; the main column material of the first evacuation tower is inserted into the main column material insertion hole of the main body part; and the connection part and a lengthwise end part of the girder of the second evacuation tower are joined together while abutting on each other so as to connect the first evacuation tower and second evacuation tower to each other.

Description

  The present invention relates to an evacuation tower complex including a first evacuation tower and a second evacuation tower that are horizontally adjacent and connected to each other.

  In coastal areas facing the sea, evacuation towers are installed to evacuate residents in the event of a tsunami, and the number of such evacuation towers tends to increase. If a tsunami actually occurs, residents and others will evacuate to a landing at the top of the evacuation tower. Here, when the number of residents evacuating to the evacuation tower is predicted to increase, it is required to increase the area of the landing according to the number of the residents. When responding to such a demand, an evacuation tower complex composed of a plurality of evacuation towers connected to each other in a horizontally aligned state is used. In many cases, an evacuation tower complex is an existing evacuation tower complex. It has a structure that allows additional evacuation towers to be added to the evacuation tower.

  Examples of the evacuation tower complex include the following. The evacuation tower complex includes a first evacuation tower and a second evacuation tower that are horizontally adjacent to each other, and the first evacuation tower is provided with a main pillar material that extends upward from the foundation thereof. A protruding beam is provided, and the second evacuation tower is provided with a large beam that protrudes in the horizontal direction toward the closing beam of the first evacuation tower.

  In such an evacuation tower complex, for example, the evacuation towers are connected using the following structure. The first evacuation tower main column material (post) and joint beam (base of the connection beam) are joined together using a connection member (connection ring) arranged along the outer periphery of the main column material, and the first evacuation tower A joint member in which the joint beam and the girder are made of a rectangular plate material in a state where the tip of the girder beam and the end of the second beam of the second evacuation tower (the beam part of the connecting beam) are in contact with each other It is joined using (connecting plate). (See, for example, Patent Document 1, especially paragraph number [0023] and FIG. 12.)

  In general, in consideration of the strength of the evacuation tower complex, the position of the abutment portion between the first evacuation tower joint beam and the second evacuation tower girder is determined, and the first evacuation tower joint is determined. The protruding amount of the beam is also defined. When such an evacuation tower complex is in a state in which the first evacuation tower is installed first (hereinafter referred to as an “expandable state”) while the second evacuation tower can be installed later, The joint beam will be exposed to the outside as a member for expansion.

JP 2005-261904 A

  However, in the evacuation tower complex as described above, the first evacuation tower and the second evacuation tower, which are separate bodies, are connected, so that the connection strength of the first evacuation tower and the second evacuation tower is reduced. There is a tendency. Therefore, it is desired to improve the connection strength between the first evacuation tower and the second evacuation tower.

  In addition, since the expansion possible state of the evacuation tower complex may be maintained for a long period of time, from the viewpoint of appearance, it is possible to reduce the protruding amount of the expansion member exposed to the outside in the expansion possible state. desirable. However, when the protruding amount of the expansion member is reduced, there is a problem that the connection strength between the first evacuation tower and the second evacuation tower after expansion is reduced. Accordingly, it is desired to maintain the connection strength between the first evacuation tower and the second evacuation tower after expansion even when the amount of protrusion of the expansion member is reduced.

  Therefore, an object of the present invention is to improve the connection strength between evacuation towers, and even when the amount of protrusion of the expansion member exposed to the outside from the existing evacuation tower is reduced in the expansion possible state, An object of the present invention is to provide an evacuation tower complex that can maintain the connection strength between evacuation towers.

  In order to solve the problem, an evacuation tower complex according to an aspect of the present invention includes a first evacuation tower and a second evacuation tower that are horizontally adjacent to each other, and the first evacuation tower extends upward from a foundation thereof. A main pillar material of the first evacuation tower, wherein the second evacuation tower has a large beam extending in a horizontal direction toward the first evacuation tower. A connecting member is disposed between the main beam member and the longitudinal end portion of the second beam of the second evacuation tower, and the connecting member is disposed around the main column member, and the second evacuation from the main body portion. A connecting portion that projects toward the large beam of the tower and tapers from the main body portion toward the large beam of the second evacuation tower in a plan view, and the main body portion of the connecting member includes Main pillar mounting holes that penetrate through the main pillar The main pillar material of the first evacuation tower is inserted into the main pillar material mounting hole of the main body portion of the connection member, and the longitudinal ends of the connection portion of the connection member and the large beam of the second evacuation tower are formed The first evacuation tower and the second evacuation tower are connected to each other in a state where they are in contact with each other. For this reason, since the connecting member that connects the main pillar material of the first evacuation tower and the longitudinal end portion of the large beam of the second evacuation tower has high rigidity due to the connecting portion having the shape described above, such a connection is provided. The connection strength of the first evacuation tower and the second evacuation tower can be improved by the member. Further, as a result of reducing the protruding amount of the connecting member exposed to the outside from the first evacuation tower in the expansion possible state, the butt position between the connecting portion of the connecting member and the longitudinal end portion of the large beam of the second evacuation tower is the first. Even if it is a case where it approaches the main pillar material of an evacuation tower, the connection intensity | strength of the 1st evacuation tower and 2nd evacuation tower after expansion can be maintained with a connection member.

  In the evacuation tower complex according to one aspect of the present invention, the main pillar material is formed to have a circular cross section, and the connection portion of the connection member and the longitudinal end portion of the large beam of the second evacuation tower, Are joined by a plate-like joint member, and the joint member is disposed and joined on a surface continuous between the connection portion of the connection member and the longitudinal end portion of the large beam of the second evacuation tower, The horizontal width of the joint member increases from the longitudinal end of the second beam of the second evacuation tower toward the connecting portion of the connecting member. Therefore, the connection strength of the first evacuation tower and the second evacuation tower can be improved by the joint member having high rigidity. Moreover, even if it is a case where the protrusion amount of a connection member is reduced as mentioned above, the connection intensity | strength of a 1st evacuation tower and a 2nd evacuation tower can be maintained with a coupling member.

  In the evacuation tower complex according to one aspect of the present invention, the first evacuation tower is in contact with the second evacuation tower and is spaced apart from each other in the horizontal direction, and the two main pillar members A plurality of large beams extending in the horizontal direction so as to connect the column members and spaced apart from each other in the vertical direction, and braces extending obliquely between the adjacent large beams are disposed at both ends of the braces Each of the parts is attached to a large beam of the first evacuation tower adjacent in the vertical direction. For this reason, the brace described above increases the strength of the first evacuation tower in the vicinity of the connection region of the first evacuation tower and the second evacuation tower, so that the connection strength of the first evacuation tower and the second evacuation tower can be improved. . Moreover, even if it is a case where the protrusion amount of a connection member is reduced as mentioned above, the connection intensity | strength of a 1st evacuation tower and a 2nd evacuation tower can be maintained with a brace.

  In the evacuation tower complex according to one aspect of the present invention, the first stairs and the second evacuation tower are arranged in correspondence with the upper end portion of the main pillar material, and the first stage A second stage landing that is spaced downward with respect to the landing, and the floor of the first stage landing is supported by a small beam extending horizontally below the first stage landing, the first stage landing A rail member is disposed along the longitudinal direction of the beam, and the rail member is attached to a lower end portion of the beam. Therefore, the rail member described above increases the strength of at least one of the first evacuation tower and the second evacuation tower, and further improves the connection strength of the first evacuation tower and the second evacuation tower. As an incidental effect, the rail member can be used as a handrail gripped by residents or the like evacuating on the second stage landing. Therefore, the connection strength of the first evacuation tower and the second evacuation tower can be improved by the rail member configured as such a handrail while arranging the handrail on the second stage landing.

  According to the evacuation tower complex according to one aspect of the present invention, the connection strength between adjacent evacuation towers can be improved, and the amount of protrusion of the additional member exposed to the outside from the existing evacuation tower can be increased. Even if it is a case where it reduces, the connection strength of the evacuation towers after expansion can be maintained.

It is a front view showing roughly the escape tower complex concerning a 1st embodiment of the present invention. It is a top view which shows roughly the escape tower complex which concerns on 1st Embodiment of this invention. It is AA sectional drawing of FIG. It is the B section enlarged view of FIG. It is the figure seen from the arrow W of FIG. It is the figure seen from the arrow C of FIG. It is the D section enlarged view of FIG. It is the figure seen from the arrow X of FIG. It is the E section enlarged view of FIG. FIG. 10 is a YY sectional view of FIG. 9. It is a front view which shows roughly the escape tower complex which concerns on 2nd Embodiment of this invention. It is a top view which shows roughly the escape tower complex which concerns on 2nd Embodiment of this invention.

[First Embodiment]
The evacuation tower complex according to the first embodiment of the present invention will be described below. As shown in FIGS. 1 and 2, the evacuation tower complex includes a first evacuation tower 1 and a second evacuation tower 2. The first evacuation tower 1 and the second evacuation tower 2 are arranged adjacent to each other in the horizontal direction. The first evacuation tower 1 and the second evacuation tower 2 are connected to each other as will be described later.

  As shown in FIGS. 1 and 2, each of the first evacuation tower 1 and the second evacuation tower 2 has first stage landings 3 and 4. Each of the first stage landings 3 and 4 is disposed in the upper end region of the first evacuation tower 1 and the second evacuation tower 2. The first stage landings 3 and 4 of the first evacuation tower 1 and the second evacuation tower 2 are arranged in the direction from the first evacuation tower 1 to the second evacuation tower 2 (hereinafter referred to as “tower connection direction”) and in the vertical direction. Are arranged at the same position to form one floor. As shown in FIG. 2, each of the first landings 3 and 4 of the first evacuation tower 1 and the second evacuation tower 2 is formed in a substantially rectangular shape in plan view.

  As shown in FIG. 1, each of the first evacuation tower 1 and the second evacuation tower 2 has second stage landings 5 and 6. Each of the second stage landings 5 and 6 is arranged below the first stage landings 3 and 4 of the first evacuation tower 1 and the second evacuation tower 2 with an interval. The second stage landings 5 and 6 of the first evacuation tower 1 and the second evacuation tower 2 are aligned in the tower connecting direction and are arranged at the same position in the vertical direction to form one floor. Although not specifically shown, each of the second stage landings 5 and 6 of the first evacuation tower 1 and the second evacuation tower 2 is formed in a substantially square shape in plan view corresponding to the first stage landings 3 and 4. Yes. In addition, although not specifically shown, stairs are installed in the evacuation tower complex, and residents and the like go up the first stage landing 3 via the second stage landings 5 and 6 by climbing such a staircase. , 4 can be evacuated.

“Basic configuration of the first evacuation tower 1”
A basic configuration of the first evacuation tower 1 will be described with reference to FIGS. As shown in FIG. 2, the first evacuation tower 1 has four main pillar members 7. Each of the four main pillar members 7 in the first evacuation tower 1 is disposed at four corners of the first stage landing 3 having a substantially quadrangular shape in plan view. For this reason, the four main pillar members 7 are positioned at intervals in the horizontal direction. In particular, as shown in FIGS. 1, 3, and 6, the main pillar member 7 is configured to extend upward from the foundation 7 a. In particular, as shown in FIG. 10, the main pillar member 7 is formed to have a substantially circular cross section.

  In particular, as shown in FIGS. 1 and 3, the first evacuation tower 1 includes two first stage connecting members 8a, two second stage connecting members 8b, two third stage connecting members 8c, and two fourth stage connecting members 8a. A step connecting member 8d is provided. The first-stage connecting member 8a to the fourth-stage connecting member 8d are formed on the main column member 7 located in the side surface region on the side connected to the second evacuation tower 2 in the tower connecting direction (hereinafter referred to as “tower connecting side”). Installed. The connecting members 8a to 8d are arranged in the order of the first-stage connecting member 8a, the second-stage connecting member 8b, the third-stage connecting member 8c, and the fourth-stage connecting member 8d from the upper side to the lower side. The first stage connecting member 8a is located at the upper end of the main pillar 7 of the first evacuation tower 1, and the first stage connecting member 8a to the fourth stage connecting member 8d are spaced apart from each other in the vertical direction. positioned. Further details of the first-stage coupling member 8a to the fourth-stage coupling member 8d will be described later.

  As shown in FIGS. 1 and 3, the first evacuation tower 1 protrudes from each of the first stage connecting member 8a, the second stage connecting member 8b, the third stage connecting member 8c, and the fourth stage connecting member 8d. There are two first-stage joint beams 9a, two second-stage joint beams 9b, two third-stage joint beams 9c, and two fourth-stage joint beams 9d. Such 1st stage joint beam 9a-4th stage joint beam 9d are comprised from H steel.

  As shown in FIG. 1, one of the two first-stage joint beams 9a to the two fourth-stage joint beams 9d has a direction orthogonal to the tower connection direction in the first evacuation tower 1 (hereinafter referred to as “tower width”). In the side area). As shown in FIG. 3, the other of the two first-stage joint beams 9 a to the four fourth-stage joint beams 9 d is disposed in the side surface region on the tower connection side of the first evacuation tower 1.

  In particular, as shown in FIGS. 1 to 5, the first evacuation tower 1 includes a first-stage girder 10 a, a second-stage girder 10 b, a third-stage girder 10 c, and a fourth-stage girder arranged in the four side regions. 10d. These large beams 10a to 10d are arranged in the order of a first-stage large beam 10a, a second-stage large beam 10b, a third-stage large beam 10c, and a fourth-stage large beam 10d from above to below. Such first-stage girder 10a to fourth-stage girder 10d are made of H steel.

  As shown in FIG. 1, in the side regions on both sides in the tower width direction of the first evacuation tower 1, one of the longitudinal ends of each of the first-stage large beam 10a to the fourth-stage large beam 10d is It joins to the front-end | tip part of 1st stage joint beam 9a-4th stage joint beam 9d. Although details are not described in the present embodiment, in the side regions on both sides in the tower width direction of the first evacuation tower 1, the other ends at both ends in the longitudinal direction of the first-stage large beams 10 a to 10 d are the towers. It is connected to the main pillar member 7 on the side opposite to the connection side. As shown in FIG. 3, in the side region on the tower connection side of the first evacuation tower 1, each of the longitudinal ends of each of the first-stage large beam 10 a to the fourth-stage large beam 10 d has two It joins to the front-end | tip part of the 1st step joint beam 9a-two 4th step joint beam 9d. Although details are not described in the present embodiment and are not particularly illustrated, in the side region opposite to the tower connection side of the first evacuation tower 1, the longitudinal lengths of the first-stage large beam 10a to the fourth-stage large beam 10d are respectively shown. Each of the direction both ends is connected to the two main pillar members 7 on the opposite side to the tower connecting side. Therefore, the first-stage girder 10a to the fourth-stage girder 10d are arranged so as to connect the main column members 7 adjacent to each other along the outer periphery of the first evacuation tower 1.

  Next, as shown in FIG. 2, the first evacuation tower 1 has two first-stage beams 11. The first-stage beam 11 connects two first-stage beams 10a facing each other in the tower connection direction. The two first-stage beams 11 are spaced from each other in the tower width direction. Although not shown in particular, the first evacuation tower 1 has two second-stage beams. The second-stage beam connects two second-stage beam beams 10b facing each other in the tower connection direction. The two second-stage beams are spaced from each other in the tower width direction.

  As shown in FIG. 3, the first evacuation tower 1 includes a space between the first-stage large beam 10a and the second-stage large beam 10b (hereinafter referred to as “first space”), a second-stage A space between the large beam 10b and the third-stage large beam 10c (hereinafter referred to as “second space”), a space between the third-stage large beam 10c and the fourth-stage large beam 10d (hereinafter referred to as “third space”), and a fourth Two braces 12 are provided in each of the spaces below the stepped beams 10d (hereinafter referred to as “fourth spaces”). The brace 12 is formed in a substantially rod shape. Each of the first space to the third space is provided with an upper mounting portion 13 that protrudes downward from both longitudinal ends of the upper beams 10a, 10b, 10c, and the lower beams 10b, 10c, 10d. A lower mounting portion 14 that protrudes upward from the longitudinal middle portion is provided. In each of the first space to the third space, one end portion in the longitudinal direction of the two braces 12 is attached to the upper attachment portion 13, and each other end portion in the longitudinal direction of the two braces 12 is the lower side. It is attached to the attachment part 14. Therefore, in each of the first space to the third space, each of the two braces 12 extends in the direction from the middle portion in the longitudinal direction of the large beams 10a, 10b, 10c, and 10d toward both ends in the longitudinal direction as it goes from the bottom to the top. It is inclined.

  As shown in FIG. 3, in the fourth space, that is, the lowest space, an upper mounting portion 15 that protrudes downward from the middle portion in the longitudinal direction of the fourth-stage large beam 10 d is provided, and the two main pillar members 7 A lower mounting portion 16 that protrudes in the horizontal direction from each of the lower end portions is provided. In the fourth space, one end portion in the longitudinal direction of the two braces 12 is attached to the upper attachment portion 15, and the other end portion in the longitudinal direction of the two braces 12 is attached to the lower attachment portion 16. It has been. Therefore, in the fourth space, each of the two braces 12 is inclined in a direction from both ends in the longitudinal direction of the fourth-stage large beam 10d toward the middle in the longitudinal direction as it goes from below to above.

  As shown in FIG. 2, the first evacuation tower 1 has a floor member 17 that forms the floor surface of the first stage landing 3. The floor member 17 is formed in a lattice shape so as to have a hole penetrating in the vertical direction. The floor member 17 is supported by the first-stage large beam 10a and the first-stage small beam 11 positioned below the floor member 17. Although not particularly shown, the floor surface of the second stage landing 5 of the first evacuation tower 1 is also formed by the floor member 17. The floor member 17 is supported by a second-stage large beam 10b and a second-stage small beam (not shown) located below the floor member 17.

  As shown in FIGS. 4 and 5, the first evacuation tower 1 has a rail member 18. The rail member 18 is attached to the lower end of the first beam 11. The rail member 18 is formed so as to protrude downward from the lower end portion of the first beam 11. Such a rail member 18 is disposed along the longitudinal direction of the first beam 11 between the first landing 3 and the second landing 5. The rail member 18 has an outer frame portion 18 a formed in a substantially U shape so as to protrude downward from the lower end portion of the first beam 11. Further, the rail member 18 has a plurality of support portions 18b that support the outer frame portion 18a and the first small beam 11 extending in the vertical direction in the middle in the longitudinal direction. The plurality of support portions 18 b are arranged at intervals in the longitudinal direction of the rail member 18.

“Basic configuration of the second evacuation tower 2”
A basic configuration of the second evacuation tower 2 will be described with reference to FIGS. 1, 2, and 6 to 8. As shown in FIG. 2, the second evacuation tower 2 has two main pillar materials 19. Each of the two main pillars 19 is disposed at two corners located on the side opposite to the side connected to the first evacuation tower 1 in the tower connecting direction (hereinafter referred to as “tower connecting opposite side”). Yes. As shown in FIG.1 and FIG.6, the main pillar material 19 is comprised so that it may extend upwards from the foundation 19a. Although not shown in particular, the main pillar material 19 of the second evacuation tower 2 is formed to have a substantially circular cross section, like the main pillar material 7 of the first evacuation tower 1.

  In particular, as shown in FIGS. 1, 2, and 6, the second evacuation tower 2 includes first-stage beams 20 a, It has a two-stage girder 20b, a third-stage girder 20c, and a fourth-stage girder 20d. These large beams 20a to 20d are arranged in the order of a first-stage large beam 20a, a second-stage large beam 20b, a third-stage large beam 20c, and a fourth-stage large beam 20d from the top to the bottom. Each of the first-stage girder 20a to the fourth-stage girder 20d of the second evacuation tower 2 is positioned corresponding to the first-stage girder 10a to the fourth-stage girder 10d of the first evacuation tower 1 in the vertical direction. Yes. The first-stage large beams 20a to the fourth-stage large beams 20d of the second evacuation tower 2 are made of H steel.

  As shown in FIG. 1, in the side regions on both sides in the tower width direction of the second evacuation tower 2, one of the longitudinal end portions of each of the first-stage large beam 20 a to the fourth-stage large beam 20 d of the second evacuation tower 2 is As will be described later, the first stage connecting member 8a to the fourth stage connecting member 8d are joined. Although details are not described in the present embodiment, in the side regions on both sides in the tower width direction of the second evacuation tower 2, the other end in the longitudinal direction of each of the first-stage large beam 20 a to the fourth-stage large beam 20 d is 2 It is connected to the main pillar 19 of the evacuation tower 2. Further, although not described in detail in the present embodiment, as shown in FIG. 6, in the side region on the opposite side of the tower connection of the second evacuation tower 2, the longitudinal length of each of the first-stage large beam 20a to the fourth-stage large beam 20d. Each of both ends in the direction is connected to two main pillar members 19.

  As shown in FIG. 2, the second evacuation tower 2 has two first-stage beams 21. The first-stage beam 21 connects the first-stage beam 10a of the first evacuation tower 1 and the first-stage beam 20a of the second evacuation tower 2 that face each other in the tower connection direction. The two first-stage beams 21 are arranged at intervals in the tower width direction. Although not specifically shown, the second evacuation tower 2 has two second-stage beam beams. The two second-stage beams are connected to the second-stage beam 10b of the first evacuation tower 1 and the second-stage beam 20b of the second evacuation tower 2 facing each other in the tower connection direction. The two second-stage beams are spaced from each other in the tower width direction.

  As shown in FIG. 2, the floor surface of the first stage landing 4 of the second evacuation tower 2 is formed by the same floor member 17 as that of the first evacuation tower 1. The floor member 17 is supported by the first-stage girder 10a of the first evacuation tower 1 and the first-stage girder 20a and the first-stage girder 21 of the second evacuation tower 2 located below the floor member 17. Although not particularly illustrated, the floor surface of the second stage landing 6 of the second evacuation tower 2 is also formed by the floor member 17. The floor member 17 is supported by the second-stage large beam 10b of the first evacuation tower 1 and the second-stage large beam 20b and the second-stage small beam (not shown) of the second evacuation tower 2 located below the floor member 17. .

  As shown in FIGS. 7 and 8, the second evacuation tower 2 has a rail member 18 similar to the first evacuation tower 1. The rail member 18 is formed so as to protrude downward from the lower end portion of the first beam 21. Such a rail member 18 is arranged along the longitudinal direction of the first beam 21 between the first landing 4 and the second landing 6.

“Details of the first-stage connecting member 8a to the fourth connecting member 8d of the first evacuation tower 1”
With reference to FIG.9 and FIG.10, the detail of the 1st step connection member 8a-the 4th connection member 8d is demonstrated. As shown in FIG. 9, the first-stage connecting member 8a has a pair of main body portions 8a1 that are arranged at intervals in the vertical direction. As shown in FIG. 10, the main body portion 8a1 is disposed around the main pillar 7 and is formed in a circular shape in plan view. A main column member mounting hole 8a2 is formed in the main body 8a1 so as to pass through the main column member 7 of the first evacuation tower 1. As shown in FIGS. 9 and 10, the first connecting member 8 a has a connecting portion 8 a 3 that protrudes from the pair of main body portions 8 a 1 toward the first-stage large beam 20 a of the second evacuation tower 2. The connecting portion 8a3 is formed in a substantially H steel shape. As shown in FIG. 10, the upper flange and the lower flange of the connecting portion 8a3 are substantially tapered so as to taper from the main body portion 8a1 toward the longitudinal end portion of the first-stage large beam 20a of the second evacuation tower 2. It is formed in a trapezoidal shape. In the present embodiment, the widths of the front end portions of the upper and lower flanges of the connecting portion 8a3 are larger than the widths of the end portions in the longitudinal direction of the first-stage large beam 20a. However, this invention is not limited to this, The width | variety of the front-end | tip part in the upper side flange of the connection part 8a3 and a lower side flange may be equal to the width | variety of the longitudinal direction edge part of the 1st step | paragraph large beam 20a. As shown in FIG. 9, the upper flange of the connecting portion 8a3 is disposed along the upper body portion 8a1. The lower flange of the connecting portion 8a3 is disposed along the lower main body portion 8a1. Such a first-stage connecting member 8 a is located between the main pillar material 7 of the first evacuation tower 1 and the first-stage large beam 20 a of the second evacuation tower 2.

  Although not particularly illustrated, the second-stage coupling member 8b to the fourth-stage coupling member 8d are also configured similarly to the first-stage coupling member 6a.

"The structure of the main pillar 7 of the first evacuation tower 1"
With reference to FIG.9 and FIG.10, the detail of the joint structure of the main pillar material 7 located in the side area | region of the tower connection side of the 1st evacuation tower 1 is demonstrated. As shown in FIGS. 9 and 10, the main pillar member 7 of the first evacuation tower 1 is inserted into the main pillar member mounting holes 8a2 of the pair of main body portions 8a1 in the first stage connecting member 8a. In the state, the main pillar member 7 and the pair of main body portions 8a1 are joined. In addition, in each of the side surface region on the tower connection side of the first evacuation tower 1 and the side surface regions on both sides in the tower width direction, the base end portion of the first stage joint beam 9a is in contact with the main column member 7, and Located between the pair of main body portions 8a1 of the first-stage connecting member 8a, in such a state, the pair of main body portions 8a1 of the first-stage connecting member 8a and the proximal end portion of the first-stage joint beam 9a Are joined.

  The tip of the first stage beam 9a and the end of the first stage beam 10a are brought together, and in this state, the tip of the first stage beam 9a and the first stage beam 10a The end is joined. Specifically, the upper flange of the first stage joint beam 9a and the upper flange of the first stage girder 10a are joined by the front side joint member 22a and the pair of back side joint members 22b. The lower flange of the first stage beam 9a and the lower flange of the first stage beam 10a are joined by the front joint member 22a and the pair of back joint members 22b, similarly to the joining of the upper flange. The web of the first stage joint beam 9 a and the web of the first stage beam 10 a are joined by a pair of side joint members 23.

  More specifically, the joining of the front end portion of the first-stage joint beam 9a and the end portion of the first-stage large beam 10a will be described. The front-side joint member 22a is made of a plate material formed in a substantially square shape. A pair of back side coupling member 22b is comprised from the board | plate material formed in the substantially square shape so that the front side coupling member 22a may be divided into two. The upper surface of the upper flange of the first stage beam 9a and the upper surface of the upper flange of the first stage beam 10a are continuous, and the front joint member 22a is disposed across these upper surfaces. The pair of lower surfaces of the upper flange of the first stage beam 9a and the pair of lower surfaces of the upper flange of the first stage beam 10a are continuous, and the back side joint member 22b is disposed across these continuous lower surfaces. Yes. Therefore, the combination of the upper flange of the first stage joint beam 9a and the upper flange of the first stage large beam 10a is located between the front side joint member 22a and the pair of back side joint members 22b. In such a state, the combination of the upper flange of the first stage joint beam 9a and the upper flange of the first stage girder 10a, and the front side joint member 22a, by a plurality of fastening means T comprising a combination of bolts and nuts, etc. The back side joint members 22b are fastened together.

  The side joint member 23 is composed of a plate material formed in a substantially square shape. The side surface of the web of the first stage beam 9a and the side surface of the web of the first stage beam 10a are connected, and the side joint member 23 is disposed across these connected side surfaces. Therefore, the combination of the web of the first stage joint beam 9 a and the web of the first stage girder 10 a is located between the pair of side joint members 23. In such a state, the combination of the web of the first stage beam 9a and the web of the first stage beam 10a and the pair of side joint members 23 by a plurality of fastening means T comprising a combination of bolts and nuts, etc. And are tightened together.

  Further, in the side region of the second evacuation tower 2 in the tower width direction, the tip of the connection portion 8a3 of the first tier connection member 8a in the first evacuation tower 1 and the first tier beam 20a in the second evacuation tower 2 In such a state, the end portions of the first evacuation tower 1 and the end portion of the first stage large beam 20a in the second evacuation tower 2 are combined with the end portions. And are joined. Specifically, the upper flange of the connecting portion 8a3 of the first-stage connecting member 8a and the upper flange of the first-stage large beam 20a are joined by a connecting front joint member 24a and a pair of connecting rear joint members 24b. . The lower flange of the connecting portion 8a3 of the first-stage connecting member 8a and the lower flange of the first-stage large beam 20a are joined by the connecting front joint member 24a and the pair of connecting back-side joint members 24b in the same manner as the upper flange. Has been. The web of the connecting portion 8a3 of the first step connecting member 8a and the web of the first step large beam 20a are joined by a pair of connecting side joint members 25.

  The connection between the tip end of the connecting portion 8a3 of the first step connecting member 8a in the first evacuation tower 1 and the end of the first step large beam 20a in the second evacuation tower 2 will be described in more detail. The joint member 24a is formed so as to increase its horizontal width from the distal end portion of the first-stage large beam 20a of the second evacuation tower 2 toward the connection portion 8a3 of the first-stage connection member 8a. Therefore, a part of the longitudinal direction of the connecting front joint member 24a is formed in a substantially trapezoidal shape. The width of the front end portion of the connecting front joint member 24a preferably corresponds to the width of the end portion in the longitudinal direction of the first-stage large beam 20a. The pair of connecting back side joint members 24b are made of a plate material formed so as to divide the connecting front side joint member 24a into two parts. The upper surface of the upper flange in the connecting portion 8a3 of the first step connecting member 8a and the upper surface of the upper flange in the first step large beam 20a are continuous. A connecting front joint member 24a is disposed across the continuous upper surface. The pair of lower surfaces of the upper flange of the connecting portion 8a3 of the first-stage connecting member 8a and the pair of lower surfaces of the upper flange of the first-stage large beam 20a are connected, and the connecting back side joint member straddles these connected lower surfaces. 24b is arranged. Therefore, the combination of the upper flange of the connecting portion 8a3 of the first step connecting member 8a and the upper flange of the first step large beam 20a is located between the connecting front joint member 24a and the pair of connecting rear joint members 24b. Yes. In such a state, the combination of the upper flange of the connection portion 8a3 of the first-stage connection member 8a and the upper flange of the first-stage large beam 20a and the connection by a plurality of fastening means T composed of a combination of bolts and nuts, etc. The front side joint member 24a and each connection back side joint member 24b are fastened together.

  The coupling side joint member 25 is composed of a plate material formed in a substantially square shape. The side surface of the web of the connecting portion 8a3 of the first step connecting member 8a and the side surface of the web of the first step large beam 20a are continuous, and the connecting side joint member 25 is disposed across these connected side surfaces. . Therefore, the combination of the web of the connecting portion 8a3 of the first step connecting member 8a and the web of the first step large beam 20a is located between the pair of connecting side joint members 25. In such a state, the combination of the web of the connecting portion 8a3 of the first-stage connecting member 8a and the web of the first-stage large beam 20a and a pair of connecting members by a plurality of fastening means T composed of combinations of bolts and nuts, The side joint member 25 is fastened together.

  Although not particularly illustrated, the joint structure in the second-stage coupling member 8b to the fourth-stage coupling member 8d and the periphery thereof is also configured in the same manner as the above-described first-stage connection member 8a and the joint structure in the vicinity thereof. Yes. With such a configuration, the first evacuation tower 1 and the second evacuation tower 2 are connected.

  In the evacuation tower complex according to the present embodiment, the first evacuation tower 1 is first installed while the second evacuation tower 2 can be installed later (hereinafter referred to as an “expandable state”). Can do. In such a state, the connection part (not shown) of the connection part 8a3 of the 1st step connection member 8a and the 4th step connection member 8d will be exposed outside from the 1st evacuation tower 1. FIG.

  According to the present embodiment as described above, the connecting members 8a to 8d are arranged between the main pillar material 7 of the first evacuation tower 1 and the longitudinal ends of the large beams 20a to 20d of the second evacuation tower 2, The connecting members 8a to 8d have a main body formed in a circular shape in plan view, and project from the main body toward the large beams 20a to 20d of the second evacuation tower 2, and from the main body to the second evacuation tower in plan view. And connecting portions formed so as to taper toward the two large beams 20a to 20d, and penetrate through the main body portions of the connecting members 8a to 8d corresponding to the main pillar material 7 of the first evacuation tower 1. A main pillar material attachment hole is formed, the main pillar material 7 of the first evacuation tower 1 is inserted into the main pillar material attachment hole of the main body of the connection members 8a to 8d, and the connection parts of the connection members 8a to 8d The longitudinal ends of the large beams 20a to 20d of the second evacuation tower 2 meet They are joined while being, first evacuation tower 1 and the second evacuation tower 2 has a configuration to be connected. For this reason, the connecting members 8a to 8d that connect the main pillar material 7 of the first evacuation tower 1 and the longitudinal ends of the large beams 20a to 20d of the second evacuation tower 2 have high rigidity due to the above-described connecting portions. Therefore, the connection strength of the 1st evacuation tower 1 and the 2nd evacuation tower 2 can be improved by such connection members 8a-8d. Moreover, as a result of reducing the protrusion amount of the connection members 8a to 8d exposed to the outside from the first evacuation tower 1 in the expansion possible state, the connection portions of the connection members 8a to 8d and the large beams 20a to 20d of the second evacuation tower 2 are obtained. Even when the butting position with the end in the longitudinal direction is close to the main pillar material 7 of the first evacuation tower 1, the connecting members 8a to 8d are used to connect the first evacuation tower 1 and the second evacuation tower 2 after expansion. The connection strength can be maintained.

  According to the present embodiment, the main pillar material 7 of the first evacuation tower 1 is formed to have a circular cross section, and the connection portions of the connection members 8a to 8d and the large beams 20a to 20d of the second evacuation tower 2 are formed. The longitudinal ends are joined by a connecting front joint member and a connecting back joint member, and the connecting front joint member and the connecting back joint member are connected to the connecting portions of the connecting members 8a to 8d and the large beam of the second evacuation tower 2. It arrange | positions and is joined to the surface connected between the longitudinal direction edge parts of 20a-20d, and the horizontal direction width | variety of the front side coupling member for connection and the back side joint member for connection is the big beam 20a- of the 2nd evacuation tower 2. It increases as it goes from the end part in the longitudinal direction of 20d toward the connecting part of the connecting members 8a to 8d. Therefore, the connection strength of the 1st evacuation tower 1 and the 2nd evacuation tower 2 can be improved with the connection front side joint member and connection back side joint member which have high rigidity. Moreover, even if it is a case where the protrusion amount of connecting member 8a-8d is reduced as mentioned above, the connection of the 1st evacuation tower 1 and the 2nd evacuation tower 2 is carried out by the front side coupling member for connection, and the back side coupling member for connection. The strength can be maintained.

  According to this embodiment, the first evacuation tower 1 extends in the horizontal direction so as to connect the two main column members 7 on the tower connection side and the two main column members 7 and is spaced apart from each other in the vertical direction. A first evacuation tower having a plurality of large beams 10a to 10d arranged and extending in an inclined manner between adjacent large beams 10a to 10d, and each of both end portions of the brace 12 being adjacent in the vertical direction. 1 large beams 10a to 10d. For this reason, the brace 12 described above increases the strength of the first evacuation tower 1 in the vicinity of the connection region between the first evacuation tower 1 and the second evacuation tower 2, and thus the connection strength between the first evacuation tower 1 and the second evacuation tower 2. Can be improved. As an incidental effect, the brace 12 is arranged so as to be hidden between the first evacuation tower 1 and the second evacuation tower 2, so that the appearance of the evacuation tower complex is complicated by the brace 12. Can be prevented. Moreover, even if it is a case where the protrusion amount of connecting member 8a-8d is reduced as mentioned above, the connection intensity | strength of the 1st evacuation tower 1 and the 2nd evacuation tower 2 can be maintained by the brace 12. FIG.

  According to this embodiment, the 1st stage landing 3 and 4 in which the 1st refuge tower 1 and the 2nd evacuation tower 2 are arrange | positioned corresponding to the upper end part of each main pillar material 7 and 19, and the 1st stage landing 3 and 4 and second stage landings 5 and 6 arranged at a distance from the lower side, and the floor surfaces 3 and 4 of the first stage landings extend horizontally below the first beam 11, 21, a rail member 18 is arranged along the longitudinal direction of the small beams 11, 21 between the first stage landings 3, 4 and the second stage landings 5, 6. It is attached to the lower end of 21. Therefore, the strength of the first evacuation tower 1 and the second evacuation tower 2 is increased by the rail member 18 described above, and further, the connection strength of the first evacuation tower 1 and the second evacuation tower 2 can be improved. . As an incidental effect, the rail member 18 can be used as a handrail gripped by residents or the like evacuating on the second stage landings 5 and 6. Therefore, while arranging the handrail on the second stage landings 5 and 6, the connection strength of the first evacuation tower 1 and the second evacuation tower 2 is improved by the rail member 18 configured as such a handrail. Can do.

[Second Embodiment]
The evacuation tower complex according to the second embodiment of the present invention will be described below. As shown in FIGS. 11 and 12, the evacuation tower complex includes a first evacuation tower 31, a second evacuation tower 32, and a third evacuation tower 33. The first evacuation tower 31 to the third evacuation tower 33 are arranged side by side in the horizontal direction. The second evacuation tower 32 is located between the first evacuation tower 31 and the third evacuation tower 33. In such a positional relationship, the first evacuation tower 31 and the second evacuation tower 32 are connected to each other, and the second evacuation tower 32 and the third evacuation tower 33 are connected to each other.

  The 1st evacuation tower 31 is comprised similarly to the 1st evacuation tower 1 of 1st Embodiment. In the second evacuation tower 32, the area on the first evacuation tower 31 side is configured similarly to the second evacuation tower 2 of the first embodiment, and the area on the third evacuation tower 33 side is the first evacuation of the first embodiment. The configuration is the same as that of the tower 1. The 3rd evacuation tower 33 is comprised similarly to the 2nd evacuation tower 2 of 1st Embodiment.

  The connection structure of the first evacuation tower 31 and the second evacuation tower 32 and the connection structure of the second evacuation tower 32 and the third evacuation tower 33 are the same as those of the first evacuation tower 1 and the second evacuation tower 2 of the first embodiment. The connection structure is the same.

  According to the present embodiment as described above, the same effect as the first embodiment can be obtained.

  Although the embodiments of the present invention have been described so far, the present invention is not limited to the above-described embodiments. The present invention can be modified and changed based on the technical idea.

  For example, as a first modification of the present invention, in the second embodiment, the evacuation tower complex has three evacuation towers, but the evacuation tower complex has four or more evacuation towers. Good. In this case, four or more evacuation towers may be arranged in the same positional relationship as in the second embodiment, and adjacent evacuation towers may be connected by a connection structure similar to that in the second embodiment.

  As a second modification of the present invention, in the first and second embodiments, the main pillar members 7 and 19 are formed to have a substantially circular cross section. Further, it may be formed so as to have a cross section other than a circular shape, for example, an elliptical shape or a polygonal shape.

  As a third modification of the present invention, in each of the first and second embodiments, each evacuation tower has a first-stage large beam to a fourth-stage large beam. An i-th beam can be provided. In this case, i is an integer of 2 or more.

  As a fourth modification of the present invention, in each of the first and second embodiments, each evacuation tower has two first-stage beams and two second-stage beams. First stage beams and k second stage beams. In this case, j and k are integers of 1 or more.

  As a fifth modification of the present invention, in the first embodiment and the second embodiment, the first stage beam and the second stage beam are positioned along the tower connecting direction, but at least one of the first stage beam and the second stage beam May be located along the tower width direction.

  As a sixth modified example of the present invention, in the first and second embodiments, the floor member 17 is formed in a lattice shape, but the floor member 17 may be formed in a panel shape.

  As a seventh modification of the present invention, in the first embodiment and the second embodiment, the main body portions of the first-stage coupling member 8a to the fourth-stage coupling member 8d are formed in a circular shape in plan view. Such a main body may be formed in a shape other than a circular shape in plan view, for example, an elliptical shape or a polygonal shape.

[Example]
Examples of the present invention will be described. An Example is related with the side area of the tower width direction of the 2nd refuge tower 2 in 1st Embodiment. In the side region of the second evacuation tower 2 in the tower width direction, both longitudinal ends of the elements that connect the first-stage connecting member 8a and the first-stage large beam 20a are the main pillar members 7 of the first evacuation tower 1. And the main pillar 19 of the second evacuation tower 2. In such a structure, the butted portion between the connecting portion 8a3 of the first-stage connecting member 8a in the first evacuation tower 1 and the first-stage large beam 20a in the second evacuation tower is the main pillar material 7 of the first evacuation tower 1. It is set at a position 330 mm away from the center. In this case, the protruding amount of the connecting portion 8a3 of the first stage connecting member 8a in the embodiment is 330 mm from the center of the main pillar material 7 of the first evacuation tower 1.

[Comparative example]
A comparative example of the present invention will be described. The comparative example relates to a side region in the tower width direction of the first evacuation tower 1 in the first embodiment. In the side area in the tower width direction of the first evacuation tower 1, each of the longitudinal ends of the element connecting the first staged girder beam 9a and the first stage girder 10a is the two main parts of the first evacuation tower 1. It is fixed to the pillar material 7. The first-stage girder 10a of the comparative example has the same cross section as the first-stage girder 20a of the example. Moreover, the distance between the two main pillar materials 7 of the first evacuation tower 1 in the comparative example is the distance between the main pillar material 7 of the first evacuation tower 1 and the main pillar material 19 of the second evacuation tower 2 in the embodiment. It is the same. In such a structure, the abutting portion between the front end of the first stage beam 9 a in the first evacuation tower 1 and the front end of the first stage girder 10 a in the first evacuation tower 1 is the main part of the first evacuation tower 1. It is set at a position 1000 mm away from the center of the column member 7. In this case, the amount of protrusion of the first stage finished beam 9a in the comparative example is 1000 mm from the center of the main pillar material 7 of the first evacuation tower 1.

  The rigidity of the connection region of the connection portion 8a3 and the first-stage large beam 20a of the first-stage connection member 8a in the embodiment, and the connection between the distal end portion of the first-stage joint beam 9a and the distal end portion of the first-stage large beam 10a in the comparative example. When comparing the stiffness of the region, they are equivalent. Therefore, as in the embodiment, as a result of reducing the protruding amount of the connecting portion 8a3 of the first stage connecting member 8a, the first connecting member 8a3 of the first stage connecting member 8a in the first evacuation tower 1 and the second evacuation tower in the second evacuating tower. Even when the abutting portion with the first-stage beam 20a approaches the center of the main pillar 7 of the first evacuation tower 1, the connection strength between the first evacuation tower 1 and the second evacuation tower can be maintained. ing.

1,31 1st evacuation tower 2,32 2nd evacuation tower 3,4 1st stage landing 5,5 2nd stage landing 7,19 Main pillar material 7a, 19a Foundation 8a First stage connecting member 8a1 Main body part 8a2 Main pillar Material mounting hole 8a3 Connecting portion 8b Second stage connecting member 8c Third stage connecting member 8d Fourth stage connecting members 10a, 20a First stage girder 10b, 20b Second stage girder 10c, 20c Third stage girder 10d, 20d Fourth Stepped beams 11 and 21 Beams 12 Braces 18 Rail member 24a Connection front side joint member 31 First evacuation tower 32 Second evacuation tower 33 Third evacuation tower T Fastening means

Claims (4)

A first evacuation tower and a second evacuation tower adjacent in the horizontal direction;
The first evacuation tower has a main pillar material extending upward from the foundation;
The second evacuation tower is an evacuation tower complex having a large beam extending horizontally toward the first evacuation tower,
A connecting member is disposed between the main pillar material of the first evacuation tower and the longitudinal end of the large beam of the second evacuation tower,
The connecting member has a main body disposed around the main column member, and protrudes from the main body toward the large beam of the second evacuation tower, and from the main body portion in plan view, the large beam of the second evacuation tower. And a connecting portion formed so as to taper toward
In the main body portion of the connecting member, a main pillar material mounting hole penetrating corresponding to the main pillar material is formed,
The main pillar material of the first evacuation tower is inserted into the main pillar material mounting hole of the main body portion of the connection member, and the connection portion of the connection member and the longitudinal end portion of the large beam of the second evacuation tower are abutted. The evacuation tower complex is configured such that the first evacuation tower and the second evacuation tower are connected to each other. The main pillar material is formed to have a circular cross section,
The connecting portion of the connecting member and the longitudinal end of the second beam of the second evacuation tower are joined by a plate-like joint member,
The joint member is disposed and joined to a surface continuous between a connection portion of the connection member and a longitudinal end portion of a large beam of the second evacuation tower,
2. The evacuation tower complex according to claim 1, wherein a width of the joint member in a horizontal direction increases from a longitudinal end portion of a large beam of the second evacuation tower toward a connection portion of the connection member. The first evacuation tower is in contact with the second evacuation tower and extends in the horizontal direction so as to connect the two main pillar members and the two main pillar members that are spaced apart from each other in the horizontal direction. A plurality of large beams arranged at intervals in the vertical direction,
The brace extending obliquely between the adjacent large beams is disposed, and each of both ends of the brace is attached to the large beam of the first evacuation tower adjacent in the vertical direction. Evacuation tower complex. The first evacuation tower and the second evacuation tower are disposed at a lower interval with respect to the first stage landing and the first stage landing arranged corresponding to the upper end portion of the main pillar material. With a second stage landing,
The floor of the first landing is supported by a beam extending horizontally below the first landing,
A rail member is disposed along the longitudinal direction of the beam between the first stage landing and the second stage landing,
The escape tower complex according to any one of claims 1 to 3, wherein the rail member is attached to a lower end portion of the beam.

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