JP5968290B2 - Upper and lower layer connection members - Google Patents

Description

  The present invention relates to a building for connecting upper and lower layers in which a lower floor is a building having a heavy steel structure, and a building having another structure on the upper floor is erected.

In a multi-tiered building, a building having a different building structure between the first floor portion and the upper floor portion of the second floor or more has recently been erected.
Specifically, a building is constructed in which the framework of the first floor portion is a heavy steel structure or a steel frame structure, and other construction methods are erected on the upper floor of the second floor or higher.
As other construction methods, wooden construction, wall-type structures, industrial construction methods such as panel construction methods, unit construction methods, and the like are assumed.
Since such a building can secure a large opening and a large booth on the first floor, for example, the first floor can be used as a store.
In addition, the upper floors of the second and higher floors can be used as collective housing because they can realize a short construction period and stable quality, and can secure a wide internal space.
As described above, a technique has been proposed in which the first floor portion has a ramen structure and the upper layer portion of the second floor or higher has another structure (see, for example, Patent Document 1).

Patent Document 1 discloses a frame structure of a low-rise building.
This low-rise building has a reinforced concrete frame structure with a garage and a store on the first floor, and a wall structure or a frame structure with braces on the second floor.
In the present technology, a rectangular beam structure is formed in the first-floor ceiling portion with two ramen beams used for the frontage portion and two depth beams, and these ramen beams and depth beams are used as the basis for 2 The frame structure of the floor part or the frame structure with braces is erected.

JP 2002-327498 A

As described above, in the conventional technique and the technique of Patent Document 1, there is a change in a dedicated structure and parts / members in order to connect the first-floor ceiling frame (ramen beam and depth beam) and the second-floor frame. Necessary.
Therefore, in order to install a structure having a different construction method as an upper floor in a lower floor portion such as a heavy steel structure, development of a technique for connecting the upper floor easily and at low cost has been demanded.
On the other hand, there are many units that have been unitized in buildings by industrialized methods (for example, buildings such as panel structures, unit methods, etc.) that have been adopted in industrialized houses and the like so that they can be easily constructed. Members and parts are packaged, and the standing method is also standardized.
As described above, there has been a demand for a simple technique for standing a unitized building as an upper floor of a lower steel floor of a heavy steel structure (steel frame ramen structure) which is a different building structure.
In other words, it is usually intended to stand on a building foundation formed on the ground, and an industrialized construction method (panel construction method, unit construction method) in which members and parts are packaged is renewed. There has been a demand for a technique for erecting an upper layer of a heavy steel structure, which is a different building structure, without changing the connection structure or changing parts or members.

An object of the present invention is to solve the above-mentioned problems, and as an upper floor of a lower floor of a heavy steel structure, it is possible to connect buildings with different structures in a simple and low-cost manner. It is to provide a member.
Another object of the present invention is to provide an upper and lower layer connecting member capable of standing up an industrialized unitized structure easily and at low cost as an upper floor of a heavy steel structure in a lower floor portion. It is to provide.

According to the member for connecting the upper and lower layers according to claim 1, the above problem is a lower floor constructed by a heavy steel method, and an upper floor constructed on the lower floor and constructed by a construction method different from the lower floor. A plurality of members connected to the lower floor beam and serving as a mounting base for the upper floor structure , The lower wall to be connected and the top wall to which the upper-layer structure is connected are arranged in parallel with a space apart in the vertical direction, and the lower wall and the top wall are bridge-connected by a side wall. The side wall is formed as a trapezoidal flat plate-like wall body, and the lower base is connected to the lower wall and the upper base is connected to the top wall. The upper base is longer than the lower base, and End of the bottom is solved by protrudes outside the end portion of the lower bottom.

At this time, specifically, before Symbol vertical hierarchy connecting member has a lower wall that is connected to the beam, and the upper floor of the structure connected by the top panel wall, parallel to each other at a space provided in the vertical direction The lower wall and the top wall are arranged so as to be bridge-connected by a side wall.

Thus, the upper and lower layer connection member according to the present invention is formed in a frame shape.
By disposing a plurality of upper and lower layer connecting members formed in a pedestal shape on the beam, these can be used as the standing foundation of the structure constituting the upper floor.
In other words, the structure (wall) that constitutes the upper floor straddling the upper part (top wall) by arranging the upper and lower layer connecting members at the key points of the plurality of beams built as the ceiling framework of the lower floor Panel etc.) can be erected.
In this way, even if the structure is a unit that is supposed to be erected on a foundation installed on the ground or a structure that is not supposed to be an upper floor relative to a lower floor of a heavy steel structure, this foundation Therefore, the packaged parts and members can be used for construction on the upper floor as they are.
Therefore, cost can be reduced and workability is also improved.
In order to use the upper floor foundation by using a plurality of upper and lower layer connecting members formed in a pedestal shape, that is, to use the upper floor foundation as a piece shape, a large foundation is newly constructed as the upper floor foundation This is advantageous in terms of cost and workability.

As the specific configuration, front SL side wall is formed in a trapezoidal shape, with the lower base is connected to the lower wall being configured upper base is connected to the top panel wall The upper base may be longer than the lower base, and the end portion on the upper base side may protrude outward from the end portion on the lower base side.
As a specific application structure, as described in claim 2 , the top wall and the bottom wall are a rectangular flat plate, an L-shaped flat plate connecting two rectangles, and a T connecting two rectangular shapes. The top wall and the bottom wall are formed in the same shape, and the inner edge of the ceiling wall and the inner edge of the lower wall are aligned in the vertical direction. Preferably, the top surface wall is configured to be larger than the lower surface wall so that the outer end portion of the top surface wall projects outward from the outer end portion of the lower surface wall. It is.

Generally, the wall of the lower floor is connected to the outer part of the beam using a connecting member or the like.
Therefore, the upper floor side end of the upper and lower layer connecting member that is the foundation of the upper floor is projected outward from the end of the lower bottom side, so that the structure of the upper floor structure is higher than the lower bottom side that is the beam connecting portion. The upper bottom side that is the installation portion will protrude outward from the beam.
Therefore, the distance (step) between the outer wall surface of the lower floor and the outer wall surface of the upper floor can be kept small, and the appearance is improved.

In addition, as described in claim 3 , the top wall and the bottom wall are rectangular flat plates, the top wall and the bottom wall are formed in the same shape, and two side walls are provided. The two side walls are arranged to face each other so as to bridge both end portions of the lower surface wall and both end portions of the top wall, and between the two side walls, It is preferable that a reinforcing wall is provided so as to bridge between the two side walls and bridge the bottom wall and the top wall.
Furthermore, as described in claim 4, the top wall and the bottom wall are rectangular flat plates, the top wall and the bottom wall are formed in the same shape, and two side walls are provided. The two side walls are arranged to face each other so as to bridge both ends of the lower wall and the both ends of the top wall, and the two side walls are disposed between the two side walls. A plurality of auxiliary side walls having the same shape as the side walls are disposed so as to connect the lower wall and the upper wall, and the adjacent auxiliary side walls are adjacent to each other between the adjacent auxiliary side walls. It is preferable that a reinforcing wall is provided so as to bridge the bottom wall and the top wall.
Further, as described in claim 5 , two side walls are provided, and an auxiliary side wall having the same shape as the side wall is provided between the two side walls and the lower wall. the are several arranged to connect the upper wall, on the inner side of the connecting portion between the top wall and the auxiliary side face wall and the top wall and the auxiliary side face wall at the inner It is preferable that a reinforcing wall to be cross-linked is provided.
If comprised in this way, the intensity | strength of the upper-lower-tier connection member will become high, and therefore the construction strength of an upper floor will also become high.

According to a sixth aspect of the present invention, the beam is formed of H-shaped steel, and the flange portions are bridged on the back surface immediately below the flange portion where the lower surface wall is disposed on the upper surface. It is preferable that flat ribs formed so as to be orthogonal to the web are formed.
Such a configuration is preferable because a structure on the upper floor is attached to the upper portion of the top wall, and a portion directly below a portion to which a large load is applied can be appropriately reinforced with ribs.
In particular, when the side wall is formed in a trapezoidal shape, a lower bottom with a small length is disposed on the beam side, and an upper bottom with a large length is disposed on the top wall side, the lower wall on the beam side Is smaller than the top wall.
Therefore, the load receiving area becomes smaller than when the side wall is formed in a rectangular shape, and the load is eccentrically applied.
For this reason, it is possible to sufficiently receive such a large load and ensure high strength by providing a rib directly below the upper and lower layer connecting member (lower wall).
It should be noted that it is more preferable that a plurality of ribs are provided in a portion where a higher strength is required because a particularly large load is applied.

Furthermore, the upper Sokai is, if it is structure according industrialized method, since the upper and lower layer connection member serves as a basis, it is preferred it is possible to directly apply the packaged parts and materials.

According to the present invention, the upper and lower layer connecting members are formed in a pedestal shape and are connected to a plurality of lower floor beams to serve as a foundation, so that installation as an upper floor relative to the lower floor of the heavy steel structure is not assumed. Structures by the construction method (industrialized construction method) can be erected easily and at low cost.
In addition, since a plurality of upper and lower layer connecting members are used in the form of pieces and used as a foundation, it is not necessary to construct a large foundation for installing upper floors, which is advantageous in terms of cost and construction.
As described above, according to the present invention, a building having a different structure can be erected easily and at low cost as the upper floor of the heavy steel structure lower floor.

It is an isometric view explanatory drawing which shows the member for upper and lower hierarchy connection which concerns on one Embodiment of this invention. It is a 4th page figure showing the member for upper and lower hierarchy connection concerning one embodiment of the present invention. It is explanatory drawing which shows the variation of the member for upper and lower hierarchy connection which concerns on one Embodiment of this invention. (L shape) It is a perspective view which shows the variation of the member for upper-lower hierarchy connection which concerns on one Embodiment of this invention. (T shape) It is a perspective view which shows the variation of the member for upper-lower hierarchy connection which concerns on one Embodiment of this invention. It is a perspective view which shows the use condition of the member for upper and lower hierarchy connection which concerns on one Embodiment of this invention. It is explanatory drawing which shows the arrangement | positioning method of the upper-lower hierarchy connection member which concerns on one Embodiment of this invention. It is a perspective view which shows the jig | tool for arrangement | positioning which concerns on one Embodiment of this invention. It is side surface explanatory drawing which shows the arrangement | positioning state of the member for upper and lower hierarchy connection which concerns on one Embodiment of this invention. It is explanatory drawing which shows the state of the upper-lower-tier connection member and rib which concern on one Embodiment of this invention. It is explanatory drawing which shows the effect of the shape of the side wall of the member for upper and lower hierarchy connection which concerns on one Embodiment of this invention. It is explanatory drawing which shows the fireproof structure around the member for upper and lower hierarchy connection which concerns on one Embodiment of this invention. It is explanatory drawing which shows the water stop structure around the member for upper and lower hierarchy connection which concerns on one Embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In addition, the structure demonstrated below does not limit this invention, In addition to including the equivalent range, it can change variously within the range of the meaning of this invention.

  The present embodiment relates to an upper and lower layer connecting member for connecting upper and lower frames having different structures.

  1 to 13 show an embodiment according to the present invention. FIG. 1 is a perspective explanatory view showing a member for connecting upper and lower layers, FIG. 2 is a four-view diagram showing a member for connecting upper and lower layers, and FIG. FIG. 4 is a perspective view showing variations of the upper and lower layer connection members (L type), and FIG. 5 is a perspective view showing variations of the upper and lower layer connection members (T type). FIG. 6 is a perspective view showing the usage state of the upper and lower layer connection members, FIG. 7 is an explanatory view showing the arrangement method of the upper and lower layer connection members, FIG. 8 is a perspective view showing the arrangement jig, and FIG. FIG. 10 is an explanatory view showing the state of the upper and lower layer connecting members and the ribs, and FIG. 11 is an explanatory view showing the effect of the shape of the side walls of the upper and lower layer connecting members. FIG. 12 is an explanatory view showing a fireproof structure around the upper and lower layer connecting members, FIG. Is an explanatory view showing the water-stop structure of the upper and lower layer connection members around.

≪About the structure and variations of the upper and lower layer connection members≫
1 and 2 show a member 1 for connecting upper and lower layers according to the present embodiment.
In addition, although the variation of the member 1 for upper and lower hierarchy connection is shown in FIG. 1, since the structure is the same, the example of a basic structure concerning Fig.1 (a) is demonstrated.
In this embodiment, the upper and lower layer connecting member 1 according to FIG. 1A includes a substantially rectangular flat plate-like top wall 11, a substantially rectangular flat plate-like bottom wall 12, two substantially trapezoidal flat plate-like side walls 13, 13 and a substantially rectangular flat reinforcing wall 14 are formed as main components.
The top wall 11 and the bottom wall 12 are rectangular flat plates. The top wall 11 and the bottom wall 12 are configured to have the same long side, and the top wall 11 has a short side at the bottom wall 12. It is comprised so that it may become larger than the short side.

The top wall 11 and the bottom wall 12 are arranged to be spaced apart from each other in the vertical direction so as to be parallel to each other, and short sides of the top wall 11 and the bottom wall 12 are connected to each other by the side walls 13 and 13.
The top wall 11 has a bolt through hole 11a for fastening the bolt.
In the example of FIG. 1, two holes are juxtaposed along one long side and three holes are juxtaposed along the other long side.

The side wall 13 has a right trapezoidal shape having an upper base having substantially the same length as the short side of the top wall 11 and a lower base having substantially the same length as the short side of the lower surface wall 12.
That is, the top wall 11 and the bottom wall 12 are arranged so that the long sides on one side are aligned directly below, and the upper bases of the side walls 13, 13 are respectively connected to the short sides on both sides of the top wall 11. While welding, the bottoms of the side walls 13, 13 are welded to the short sides on both sides of the lower surface wall 12, thereby forming a frame-like outer shape.

At this time, the leg on the side of the side wall 13 which is a right angle is disposed so as to bridge the long side aligned directly above and below.
Since it is configured in this way, on the long side facing the long side aligned directly above and below, the end of the top wall 11 protrudes more outward than the end of the bottom wall 12 in a side view. .
That is, in a side view, a slope (which is the other leg of the trapezoid) from the bottom wall 12 end to the top wall 11 end is formed.

  The reinforcing wall 14 is directed in the direction along the longitudinal direction of the top wall 11 and the bottom wall 12 and is welded to the central portion so as to bridge the top wall 11 and the bottom wall 12. The strength of the gantry-shaped internal space formed by the walls 13 and 13 is reinforced.

In addition, in FIG.1 (b) (c) and FIG. 3, the variation of the member 1 for upper and lower hierarchy connection is shown.
The basic configuration is the same as that of the upper and lower layer connecting member 1 shown in FIGS. 1A and 2 described above.
In other words, the upper and lower layer connection member 1 has variations depending on the place of use, and is used in combination according to the building in which they are constructed.
Variations in which the sizes of the top wall 11 and the bottom wall 12 are different, and variations due to the number and arrangement of the bolt through holes 11a, but for example, the top wall 11 and the bottom surface as shown in FIG. When the size of the wall 12 is large (when the long side is long), one or a plurality of auxiliary side walls 13 ′ are installed between the side walls 13 and 13 so as to be parallel to them.
In the present embodiment, the auxiliary side wall 13 ′ is formed in the same shape as the side wall 13.
Moreover, the bolt G is arrange | positioned in the example of FIG.1 (c) or FIG.3 (g) (h). The bolt G is disposed so that the leg portion protrudes upward from the inside through the top wall 11, and the head is fixed by a bolt holding metal K on the back surface (inner side surface) of the top wall 11. .

Next, FIG. 4 shows an example in which the shapes of the top wall 11 and the bottom wall 12 are different in a variation of the upper and lower layer connection member 1.
The example of FIG. 4 shows an example in which the top wall 11 and the bottom wall 12 are configured in an L shape.
The upper and lower layer connection member 1 according to the present example is used for a portion such as a protruding corner or an entering corner, that is, a corner portion.
This structure is the same as the basic structure of the upper and lower layer connecting member 1 described above.
That is, the lower surface wall 12 formed slightly smaller than the top surface wall 11 is used, and both end portions are connected so as to be bridged in the vertical direction by the side walls 13 and 13 formed in a trapezoidal shape, thereby forming a frame shape. .

In the example of FIG. 4, one auxiliary side wall 13 ′ is disposed so as to be parallel to one side wall 13, and one auxiliary side wall 13 ′ is parallel to the other side wall 13. A side wall 13 'is provided.
These auxiliary side walls 13 ′ are arranged so as to be parallel to the side walls 13, 13 starting from the L-shaped inner corners of the top wall 11 and the bottom wall 12.

4A and 4B are variations depending on the number and arrangement configuration of the bolt through holes 11a. For example, in the example of FIG. 4B, the bolt G is arranged. The bolt G is disposed so that the leg portion protrudes upward from the inside through the top wall 11, and the head is fixed by a bolt holding metal K on the back surface (inner side surface) of the top wall 11. .
Further, in this example, it is preferable that the reinforcing wall 15 is arranged in a bracing manner to reinforce the inner corner portion formed by the auxiliary side wall 13 ′ and the back surface (inner side surface) of the top wall 11. .

Further, FIG. 5 shows an example in which the top wall 11 and the bottom wall 12 have different shapes in the variation of the upper and lower layer connection member 1.
The example of FIG. 5 shows an example in which the top wall 11 and the bottom wall 12 are configured in a T shape.
In this example, the L-shaped one is only derived from the T-shape and is the same as the L-shaped example.

≪About the usage state of upper and lower layer connection members≫
6 to 9 show the usage state of the upper and lower layer connection member 1.
As shown in FIG. 6, in this example, a state is shown in which the panel P is erected using the upper and lower layer connecting members 1 on the heavy steel frame of the ramen structure used on the first floor.
In the said location, the gate-shaped steel frame structure is formed in the lower floor part by the beam H which functions as a ramen beam, and the some ramen pillar which supports this beam H. As shown in FIG.
As shown in FIG. 6, a plurality of upper and lower layer connecting members 1 are welded onto a beam H made of H-shaped steel.
At this time, as described in the above variation, the size and shape (I-shaped, L-shaped, T-shaped, etc.) of the upper and lower layer connecting member 1 are selected according to each installation location, and match the design drawing. The upper and lower layer connecting members 1 are welded.

At this time, a jig unit 2 as shown in FIG. 8 is used to accurately arrange the plurality of upper and lower layer connection members 1.
The jig unit 2 according to this embodiment includes a plurality of major members 21 and temporary fixing pins 22.
The major member 21 has an L angle composed of a long rectangular flat plate mounting portion 21A and a long rectangular flat plate standing portion 21B that stands up substantially vertically from one long side of the mounting portion 21A.
The mounting portion 21A has a plurality of adjustment holes 21a formed at regular intervals.

The adjustment holes 21a are perforated along the longitudinal direction at regular intervals, and are perforated so as to be aligned with the arrangement interval of the upper and lower layer connection members 1 (interval of adjacent bolt through holes 11a).
Moreover, in this example, since the measure member 21 is configured with an L angle, the strength against bending is increased.
In addition, you may comprise the adjustment hole 21a as multiple types of hole from which a diameter differs, for example.
In this example, the bolt through hole 11a formed in the top wall 11 of the upper and lower layer connecting member 1 is perforated with two types of large and small diameters (that is, a fastening member for attaching the panel P or the like). For example, the diameter may be adjusted so that the adjustment hole 21a matches the large and small diameters.

The temporary fixing pin 22 includes a pin head portion 22A and a pin leg portion 22B.
The pin head portion 22A is a columnar head portion, and the pin leg portion 22B protrudes from the center of one bottom surface.
The pin leg portion 22B has a cylindrical large-diameter portion 22a that protrudes from the pin head portion 22A, and a cylindrical shape that protrudes coaxially from the bottom surface of the large-diameter portion 22a (the bottom surface that is not continuous with the pin leg portion 22B). And a small diameter portion 22b.
The bottom diameter of the small diameter portion 22b is configured to be smaller than the bottom diameter of the large diameter portion 22a.
And in this example, the diameter of the bolt through-hole 11a formed in the top | upper surface wall 11 of the upper-and-lower hierarchy connection member 1 has two types of diameter sizes, a large diameter and a small diameter, and the bottom surface of the small diameter portion 22b. The diameter is aligned with the small diameter bolt through hole 11a, and the bottom diameter of the large diameter portion 22a is configured to be aligned with the large diameter bolt through hole 11a.

Then, as shown in FIG. 7, the temporary fixing pin 22 is inserted into the communication hole between the adjustment hole 21a and the bolt through hole 11a while placing the measure member 21 on the top surface portion 11 of the upper and lower layer connection member 1. Then, the upper and lower layer connection member 1 is arranged at an accurate position.
And the lower surface wall 12 and the beam H of the upper and lower layer connection member 1 are temporarily welded, and the upper and lower layer connection member 1 is positioned.

That is, at first, the upper and lower layer connecting members 1 are arranged at a rough position of the beam H shape, and the jig unit 2 can be used for accurate positioning.
If the main welding is performed at the time when the positioning is completed, the placement accuracy of the upper and lower layer connecting members 1 can be improved, and the mounting workability of the upper and lower layer connecting members 1 on site is also improved.
Further, by aligning the two major members 21 and 21 so as to be orthogonal to each other, it is possible to perform alignment efficiently in the vicinity of the crossed beams H and H.
In other words, the adjustment holes 21a and 21a of the two measuring members 21 and 21 are crossed so as to communicate with each other, and the temporary fixing pins 22 are inserted into the communication holes to temporarily fix the two measuring members 21 and 21. In this state, alignment can be performed.

The arrangement state of the upper and lower layer connecting members 1 connected to the beams H in this way will be described with reference to FIG.
Note that a wall base part L having an L-shaped cross section is connected to the beam H, and the wall W1 of the first floor portion is connected to the wall base part L.
Further, the lower wall 12 of the upper and lower layer connecting member 1 is welded to the beam H, and the panel P is erected above the top wall 11.

At this time, as shown in FIG. 10, in the beam H, a plate-like rib R extending in the vertical direction is formed immediately below the place where the upper and lower layer connecting member 1 is disposed.
That is, the ribs R formed so as to bridge the flanges of the H-shaped steel and be perpendicular to the web are provided, and the two ribs R are arranged in parallel at a portion where strength is particularly required. It is good to be formed.
If comprised in this way, the structure of the upper floor will be attached to the upper part of the top wall 11, and the part directly under the part to which a big load is added can be appropriately reinforced with the rib R.
In particular, the side walls 13 and 13 are formed in a trapezoidal shape, a lower bottom having a small length is disposed on the beam H side, and an upper base having a large length is disposed on the top wall 11 side. The area of the lower wall 12 on the side is smaller than that of the top wall 11.
Therefore, the load receiving area is smaller than when the side walls 13 are formed in a rectangular shape, and the load is eccentrically applied.
For this reason, by providing the rib R immediately below the upper and lower layer connection member 1, it is possible to sufficiently receive such a large load and ensure high strength.

The reason why the side wall 13 of the upper and lower layer connecting member 1 is formed in a trapezoidal shape will be described with reference to FIGS.
As described above, the side wall 13 is formed in the shape of a right trapezoid whose lower base is smaller than the upper base.
That is, the lower bottom, which is the side connected to the lower wall 12, is smaller than the upper base, which is the side connected to the top wall 11.

The legs extending at right angles to the upper and lower bases are arranged on the side opposite to the first floor wall W1 arrangement side, and the other legs are arranged on the first floor wall W1 arrangement side. The bottom wall 12 is welded to the beam H with the direction defined as described above.
Since it is comprised in this way, it will be in the state which the edge W-side edge of the 1st floor of the top wall 11 overhangs to the wall W1 side of the 1st floor.
For this reason, when the panel P is erected on the top wall 11, the distance t1 between the first floor wall W1 and the panel P can be reduced. This can be reduced and the finishing work is facilitated (see FIG. 9).
Moreover, interference with the heavy steel frame of the lower floor part can be avoided, and the upper floor load can be transmitted to the heavy steel beam H.

When this configuration is realized by the side wall 13 having a rectangular shape, a part of the lower wall 12 protrudes toward the wall W1 on the first floor (projects from above the beam H) as shown by a dotted line portion in FIG. Therefore, the protruding portion cannot be welded.
However, in this example, since the side wall 13 has a trapezoidal shape, the lower wall 12 can be welded to the beam H all around, and high strength can be ensured.
In addition, although it is also possible to connect the beam H and the upper and lower layer connecting member 1 with a bolt, by performing welding, it becomes possible to finely adjust the arrangement at the time of welding, and the accuracy can be increased. Then, the example which welds was described.

Next, the reason why the side wall 13 of the upper and lower layer connecting member 1 is formed in a trapezoidal shape will be described with reference to FIG.
In addition, FIG. 12 is a conceptual diagram for explaining the fire prevention structure, and illustration of peripheral members such as the wall base component L is omitted.
In this example, after the upper and lower layer connecting members 1 are welded to the beams H, concrete CR is placed on the second floor.
In this example, the concrete CR reaches the arrangement part of the upper and lower layer connecting members 1, passes between the plurality of upper and lower layer connecting members 1 arranged in a piece shape, and reaches the wall W <b> 1 of the lower floor.
For this reason, the concrete CR covers the upper surface of the beam H while filling the gaps between the plurality of upper and lower layer connecting members 1.
In this example, the upper part of the wall W1 on the lower floor is fixed by a wall base part L (which is an L-shaped angle) (not shown). In this case, the wall base part L is concrete. In addition to being a CR stopper, the portion (the upper part of the wall base part L) is covered with concrete CR.
And the outside wall W1 is arranged on the outside, and the other part of the beam H (if a gap is made between the beam H and the wall W1 by using the wall base part L, its The space portion is also covered with the fireproof covering material Q.
That is, a fireproof line is formed, and the beam H is covered by the fireproof line without being interrupted.

In addition, it is more preferable that a whole-net reinforcing rock wool is disposed between the concrete CR and the wall W1, since fire resistance is enhanced and leakage of the concrete CR can be prevented.
Thus, a fireproof line without a gap is secured in the upper floor panel P, the lower floor-upper floor connecting portion (concrete CR), and the wall W1 of the lower floor.

Next, the water stop structure will be described with reference to FIG.
As described above, in this example, when the panel P is erected on the top of the top wall 11, a step of a distance t <b> 1 is formed between the wall W <b> 1 on the first floor and the panel P.
By making the shape of the side wall 13 trapezoidal, the distance t1 is reduced, and the level difference has less influence on visibility and the like. However, in this example, in order to make the waterstop more reliable, The draining material V is disposed in the portion.
In this example, a double waterproof type drainer V is provided.
That is, the draining material V is disposed so as to straddle the lower end portion of the panel P and the upper end portion of the wall W1 on the first floor.
As a result, the waterproof property is improved, and the step of the distance t1 cannot be completely visually recognized, so that the design property is also improved.

Further, in this example, as shown in FIG. 13, the height at which the upper end surface of the first-floor wall W <b> 1 is positioned extends to a position T that matches the height position of the top wall 11 of the upper and lower layer connection member 1. Thus, the wall W1 is installed.
That is, it is configured such that the height of the upper and lower layer connecting member 1 is squeezed by the upper end portion of the wall W1 to avoid visual recognition from the outside.
For this reason, even if different construction methods are used in the upper and lower layers, the uncomfortable appearance can be alleviated and the design is improved.
And by arrange | positioning the draining material V in the said part (connection part of an up-and-down hierarchy), since the said draining material V plays the role of a parting, waterproofness improves and design property improves.
The balcony part and the corridor part are not supported on the second floor part, but a support part such as a cantilever beam is taken out from the first floor beam H, and the upper and lower layer connecting member 1 is placed and fixed thereon. As a result, the same fit as the wall W1 can be achieved.
In addition, in the balcony part, a pillar is erected directly from the top wall 11 of the upper and lower layer connecting member 1 (the bottom end of the pillar is fixed to the top wall 11), and a waist wall and a handrail are fixed to the pillar. It is good to configure.
Thus, it can be set as the unified accommodation regardless of places, such as an outer wall part and a balcony part, and shortening of the effort of construction and unification of design nature can be aimed at.

DESCRIPTION OF SYMBOLS 1 Upper-lower layer connection member 11 Top surface wall 11a Bolt through-hole 12 Lower surface wall 13 Side wall 13 'Auxiliary side wall 14 Reinforcement wall 15 Reinforcement wall 2 Jig unit 21 Measure member 21A Mounting part 21a Adjustment hole 21B Standing part 22 Temporary Stop pin 22A Pin head 22B Pin leg portion 22a Large diameter portion 22b Small diameter portion CR Concrete G Bolt H Beam K Bolt holding metal L Wall base part P Panel Q Fireproof covering material R Rib T Position V Drainage material W1 Wall

Claims (6)

A member for connecting a lower floor constructed by a heavy steel construction method and an upper floor constructed on the lower floor and constructed by a construction method different from the lower floor,
It is formed in the shape of a pedestal and is connected to a plurality of beams on the lower floor, and serves as a mounting base for the structure on the upper floor,
The lower wall connected to the beam and the top wall to which the upper floor structure is connected are arranged in parallel with a space in the vertical direction, and the lower wall and the top wall are side walls. Is constituted by cross-linking by
The side wall is formed as a trapezoidal flat plate-like wall body, and is configured such that a lower base is connected to the lower surface wall and an upper base is connected to the top wall,
The upper and lower layer connecting member, wherein the upper base is configured to be longer than the lower base, and an end portion on the upper base side projects outward from an end portion on the lower base side. The top wall and the bottom wall are any one of a rectangular flat plate, an L-shaped flat plate connecting two rectangles, and a T-shaped flat plate connecting two rectangles,
The top wall and the bottom wall are formed in the same shape,
The inner end of the top wall and the inner end of the lower wall are arranged at a position aligned in the vertical direction, and the outer end of the top wall projects outward from the outer end of the lower wall. Thus, the upper and lower layer connection member according to claim 1, wherein the top wall is configured to be larger than the lower wall. The top wall and the bottom wall are rectangular flat plates, and the top wall and the bottom wall are formed in the same shape,
Two side walls are provided,
The two side walls are arranged to face each other so as to bridge both end portions of the lower surface wall and both end portions of the top wall,
A reinforcing wall is disposed between the two side walls so as to bridge between the two side walls and to bridge the bottom wall and the top wall. The upper and lower layer connection member according to claim 1. The top wall and the bottom wall are rectangular flat plates, and the top wall and the bottom wall are formed in the same shape,
Two side walls are provided,
The two side walls are arranged to face each other so as to bridge both end portions of the lower surface wall and both end portions of the top wall,
Between the two side walls, a plurality of auxiliary side walls having the same shape as the side walls are disposed so as to connect the lower wall and the upper wall,
Between the adjacent auxiliary side walls, a reinforcing wall is disposed so as to bridge the adjacent auxiliary side walls and bridge the lower surface wall and the top wall. The upper and lower layer connection member according to claim 1. Two side walls are provided,
Between the two side walls, a plurality of auxiliary side walls having the same shape as the side walls are disposed so as to connect the lower wall and the upper wall,
The reinforcing wall for bridging the top wall and the auxiliary side wall is provided inside the connecting portion of the top wall and the auxiliary side wall. The upper and lower layer connection member according to claim 2. The beam is formed of H-shaped steel,
A flat rib formed so as to cross-link the flange portions and to be orthogonal to the web is formed on the back surface immediately below the flange portion on which the lower surface wall is disposed on the upper surface. The member for connecting the upper and lower layers according to any one of claims 1 to 5.

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