JPH0372140A - Floor frame for forming upstairs floor - Google Patents

Abstract

PURPOSE:To ensure easier assembly work by preliminarily constituting the stairway support beam of a floor frame for forming an upstairs floor, a stairway floor beam and a connection beam as integrated frame, and bolting the frame to the floor beam of a house. CONSTITUTION:A floor frame 1 for forming an upstairs floor is provided in a staircase extended from the first floor to the upstairs of a house. In addition, a stairway support beam 4, a stairway floor beam 5 and a connection beam 6 are preliminarily formed as an integrated frame. This frame is fixed in such a way that both ends of the beam 4 and the inner edge of the beam 5 are respectively bolted to the floor beam of a house arranged around the staircase, thereby fitting the floor frame 1 constituting the upstairs floor to a house body. According to the aforesaid construction, the positions of connection to the beam members of the house body can be substantially reduced and alignment work of the aforesaid members can be omitted, thereby ensuring easier assembly work.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention provides a method for forming an upper floor in which the upper ends of a staircase connecting a lower floor and an upper floor are connected, by pre-integrating beam materials for the framework forming the upper floor. The floor framework for forming the upper floor will be assembled into a unit, which will increase construction efficiency and shorten the construction period.

[Conventional technology]

In recent years, multi-story housing complexes made of lightweight steel structures have become popular. In addition, in such a housing complex, as shown in FIG. 6, the outer wall W is recessed and a stair room d having a staircase C is provided in the recess. Further, in the staircase room d, a staircase floor is formed which connects the upper end of the staircase C and leads to the entrances and exits of each living area.

Conventionally, such a stair floor consists of beams placed on both sides of the recess, as shown in Figure 6, a stair support beam e that receives the upper end of the stair C, and a pair of panels that support the stair floor panel. The frame was passing support beams f and f respectively.

[Problem to be solved by the invention]

In this way, by individually passing multiple beams to the frame, the number of connection points increases, which requires time and effort on site. The positioning and centering work is complicated, and construction efficiency is poor.

The present invention is based on the fact that the stair support beam that receives the stairs and the plurality of floor beams that support the stair floor are joined together in advance.
The objective is to provide a floor framework for forming upper floors that can be easily constructed on-site and shorten the construction period.

[Means to solve the problem]

The present invention is a floor framework for forming an upper floor in which a staircase extending from the lower floor of a house to the upper floor is disposed, and the upper end of the staircase of a staircase chamber formed by recessing the outer wall is connected,
A stair support beam whose ends are bolted to the upper floor beams arranged on both sides of the house on both sides of the staircase and which connects the top end of the staircase, and a stair support beam whose outer end is fixed to the stair support beam and which is attached to the back wall of the staircase. This floor framework for forming an upper floor is integrally equipped with a pair of parallel stair floor beams whose inner ends are bolted to the arranged upper back floor beams, and a joint beam that connects the stair floor beams.

[Effect]

Since the stair support beams, stair floor beams, and joint beams are combined to form a framework, by bolting this framework to the floor beams of the main body of the house, the floor framework forming the upper floor can be attached to the main body of the house. be assembled into.

Therefore, on-site construction is sufficient to connect the integrated floor frame and the main body of the house, and the on-site labor can be greatly reduced.

In addition, because the stair support beams, stair floor beams, and joint beams are integrated in advance, there is no need to center these beams on site.
Work efficiency can be further improved.

〔Example〕

An embodiment of the present invention will be described below based on the drawings.

In the figure, a floor frame 1 for forming an upper floor of the present invention (hereinafter referred to as floor frame 1) extends from the lower floor R1 to the upper floor R2 of a house B, and is installed in a stairwell formed by recessing the outer wall WO. It will be done.

Further, the stair room E includes a stair E and an upper floor F where the upper end of the stair E is connected, and the upper floor F is provided with a floor frame 1 according to the present invention.
It is formed by laying a floor panel on top of the floor panel.

In this embodiment, the staircase E is formed as a turn-back staircase having a landing G at an intermediate position.

Around the stairwell, there is a pair of side walls WSlWS that extend inward from the outer wall WO and are arranged opposite to each other, and a back wall Wl that connects the inner ends of the side walls ws and ws.
Upper floor beams 2.2 are formed on s and ws, and upper back floor beams 2 for forming the rear wall are formed on the back wall Wl.

In this embodiment, the floor beam 2 on the upper floor side has an upper chord member 11 and a lower chord member 12 which are made of channel-shaped members and are arranged facing each other with a gap between them and the grooves facing each other, and a lattice is installed between the upper chord member 11 and the lower chord member 12. The frame is a lattice beam that is passed between the pillars 13 and 13 that form the main body of house B.

In addition, on the upper floor beams 2.2 facing each other, a mounting piece 14.14 is provided at an intermediate position and on the opposing surface side, which connects the upper and lower chord members 11.12 and has a plurality of through holes 14a. establish.

The upper back floor beam 3 has upper and lower chord members 11, like the upper floor beam 2.
12, and the upper floor beam 2 is located between the columns 3.3 at approximately the same height as the upper floor beam 2 and in a position close to the column 3.3.
Two mounting pieces 15 and 15 having substantially the same configuration as the mounting piece 14 are provided.

The stair support beam 4 is a channel-shaped member that projects an upper flange 4b and a lower flange 4c extending inward from the upper and lower ends of the web 4a, and extends between the opposing upper floor beams 2.2. Furthermore, the stair support beam 4 has a joint piece provided at both ends thereof with bolt holes 16a that can come into contact with the mounting piece 14 and that are aligned with the through holes 14a of the mounting piece 14 and are provided therethrough. , a backing piece 16b that extends horizontally outward from the upper end of the joint piece and whose lower surface abuts the upper surface of the upper floor beam 2, thereby allowing the stair support beam 4 to be placed across the upper floor beam 2.2. having
A connecting fitting 16.16 is provided.

The stair floor beam 5 is made of a groove-shaped member having approximately the same height as the stair support beam 4, and one end is integrally fixed to the stair support beam 4 by welding to the stair support beam 4 or by bolting via an L-shaped fitting. At the same time, the other end has a bolt hole 17a having approximately the same shape as the connection piece 16 of the stair support beam 4 and into which a bolt passing through the through hole 15a of the attachment piece 15 of the upper back floor beam 3 is fitted. A connecting fitting 17 is provided which has a contact piece 17b extending from the upper end along the upper floor forming surface.

Further, the pair of stair floor beams 5 are attached to the stair support beam 4 in parallel to each other and perpendicular to the stair floor beam 4.

Between the stair floor beams 5.5 which are placed opposite to each other, two joint beams 6.6 made of channel-shaped members having a slightly smaller height than the stair floor beams 5 are placed in positions close to the stair support beams 4 and the connecting fittings 17, respectively. The ends of the connecting beams 6 are fixed to the stair floor beams 5 by welding or bolting using L-shaped connecting fittings.

Therefore, in the stair support beam 4, a rectangular frame-shaped floor frame 1 is formed integrally by a pair of stair floor beams 5.5 and a joint beam 6, and the floor frame 1 is connected to each connection fitting 16.16. 17
．． It can be attached to the upper floor side floor beam 2.2 and the upper floor rear floor beam 3 using bolts passing through each of the 17 bolt holes 16a, 17a, etc.

Also, as in this example, each connection fitting 16.16.17.17
A contact piece 16b- that can come into contact with the upper surface of the floor beam 2.3, respectively.
... 17b. General The floor framework 1 can be temporarily placed prior to fixing the floor framework 1 to the beams 2.3, making it easier to position and fix the floor framework 1 on site. Become.

In this embodiment, the staircase E includes the landing G located on the middle floor, an upper staircase 21 that connects the landing G and the floor frame ml according to the present invention, and a lower staircase 22 that connects the landing G and the downstairs. It consists of.

The landing G has channel-shaped members arranged in a rectangular shape, and has a dance base frame 24 on which a floor panel can be laid on the upper surface, and both sides of the dance base frame 24 are connected and fixed to stair pillars 25 and 25 erected on the ground. There is.

Further, in the dancing base frame 24, the horizontal frame member 26 located inside thereof is made of a groove-shaped member and is arranged with the groove facing outward.

The upper staircase 21 has two stringers 313 arranged in parallel.
1, a plurality of treadboards 32-... are passed between the racks. In this embodiment, the stringer 31 is made of a channel member with flanges extending above and below the web, and the stringer 31 has a sloped portion 31a whose lower end is bolted to the horizontal frame member 26 of the base frame 21. A horizontal portion 31b extending horizontally is provided at the upper end, and a transparent hole 34 provided in the web 4a of the stair support beam 4 is provided at the inner end of the horizontal portion 31b, that is, at the upper end of the stairway.
An end plate 35 is attached having bolt holes 35a aligned with and transparent therethrough. Further, a connecting beam 36.3G connecting between the opposing stringers 31.31 is attached to the horizontal portion 31b.

In this embodiment, tongue pieces 3 are provided at the upper end and the lower end of the stringer 31 and project in the longitudinal direction of the stringer 31, respectively.
7.39 shall be established.

Note that the upper staircase 21 can have the treads 32 and the joint beams 36, 36 integrally fixed in advance between the pair of stringers 31, 31, and when they are integrally fixed in this way, the floor After installing the framework 1 and the dance base frame 24 in the proper positions, the stairs 21 on the core are moved using a crane or the like to remove the tongue piece 37.
．． 37 on the upper surface of the stair support beam 4 and the tongue pieces 39 and 39 on the horizontal frame members 26 of the dance base frame 24, the upper end of the upper staircase 21 is placed on the floor frame 1 and its lower end is placed. can be temporarily placed on the dance base frame 24, and the work of bolting the upper stairs 21 can be easily done.

Further, the lower staircase 22 is constructed between the dance base frame 21 and the lower floor J.

〔Effect of the invention〕

Like a ridge, the floor framework for forming an upper floor of the present invention has a stair support beam, a stair floor beam, and a joint beam integrated, and both ends of the stair support beam and the inner end of the stair floor beam are connected to each other in the staircase room. Because it is bolted to the floor beams of the surrounding houses, when assembling the floor frame, the beam materials for each frame must be individually delivered to the construction site, and the conventional structure, which was assembled on site. Compared to conventional structures, the number of connection points with the beams of the main body of the house is greatly reduced, making it easier to construct on-site and shortening the construction period.

Furthermore, since the stair support beam, stair floor beam, and joint beam are connected in advance, the work of aligning these members on site is omitted, making the -layer assembly work easier.

[Brief explanation of drawings]

Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 is a perspective view showing the main parts thereof, and Fig. 3 is an exploded perspective view thereof. J! Figure, 4th
The figure is a plan view showing an example of a house using the floor framework of the present invention.
FIG. 5 is an XX sectional view thereof, and FIG. 6 is a plan view showing the prior art. 3--Upper floor back floor beam, 5--Stair floor beam, B--House, D--Stairs room, 1-Downstairs, R2-Upstairs, WO--Outer wall, ws-Side wall. 2-- Upper floor beam, 4-- Stair support beam, 6-- Joint beam, E-- Stairs, R Wl...- Back wall,

Claims (1)

[Claims] 1. A floor framework for forming an upper floor, in which a staircase extending from the lower floor of a house to the upper floor is arranged, and the upper end of the staircase of a staircase formed by recessing the outer wall is connected, and both sides of the house sandwiching the staircase. A stair support beam having both ends bolted to an upper floor beam placed on the wall and connected to the upper end of the staircase, and an upper back floor beam having an outer end fixed to the stair support beam and placed on the back wall of the staircase. A floor framework for forming an upper floor integrally comprising a pair of parallel stair floor beams whose inner ends are bolted together and a joint beam connecting the stair floor beams.