JP2001164758A - Floor slab work method for multi-storied building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently install predetermined fittings to be embedded in the floor slab in each story, while securing the accuracy of installation in a multi- storied building with the stories overlapped in the vertical directions. SOLUTION: In embedding fittings 2 embedded in floor slab at the ceiling side, a groove with an almost lip-shaped cross section is formed facing a multi- storied space, a freely movable slide member 21 is arranged along the groove direction relative to an almost lip-shaped groove 2a, a bob is suspended from the slide member 21, the slide member 21 is moved along the lip-shaped groove 2a in cross section, the relative position of the upper side embedded fittings 2 and lower side embedded fittings 1 is verified at least at 2 places in the member length direction thereby locating the fittings 2 comes to the same vertical straight line, which is embedded at the bottom surface of the floor slab at the ceiling side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor slab construction method applied to a case where it is desired to bury a predetermined embedded hardware or the like in a floor slab of each floor while ensuring the installation accuracy in a multi-story building in which a plurality of floors vertically overlap. About.

[0002]

2. Description of the Related Art In recent years, when constructing an outer wall, a sash surface, a partition wall, or the like of a building, a buried metal such as an anchor rail is buried in a lower frame and an upper frame, respectively. A construction method for assembling an outer wall, a sash surface, a partition wall, or the like has been proposed. For example, in the case of Japanese Patent Application Laid-Open No. 8-319767, as shown in FIG. 10, anchor rails 50 and 51 each having a substantially lip groove-shaped cross section are embedded and fixed in each of an upper frame and a lower frame. The head of a fixing bolt 52 is fitted into the rails 50 and 51 so as to be slidable in the longitudinal direction.
3 and 54, and a structure is proposed in which the brackets 53 and 54 are used as support members to fix building components such as the outer wall, sash, and partition wall.

[0003]

However, the above publication only provides a mounting structure for a sash or the like on the first floor, but does not specifically disclose the securing accuracy of the embedded anchor rails 50 and 51. In particular, for example, in a multi-story building in which a plurality of floors vertically overlap, where the buried hardware is to be accurately and accurately installed on each of the upper surface and the lower surface of the concrete slab, it is cast in place as disclosed in the gazette. In the structure in which the anchor rails 50 and 51 are supported by the reinforcing bar as described in the above-mentioned publication, there is a problem that the installation accuracy is not secured.

Accordingly, a main object of the present invention is to provide a floor slab for efficiently constructing a predetermined embedded metal or the like on a floor slab of each floor in a multi-story building in which a plurality of floors vertically overlap with each other while ensuring installation accuracy. It is to provide a construction method.

[0005]

According to the present invention, there is provided a multi-story building in which floors are vertically overlapped.
A floor slab construction method for accurately installing buried hardware buried on the lower surface of the ceiling slab, with the buried metal buried on the upper surface of the floor slab with the hierarchical space therebetween, The buried metal buried in the ceiling side slab is formed with a substantially lip-shaped groove in cross section facing the hierarchical space, and a slide member movable in the groove direction with respect to the substantially lip-shaped groove in cross section. While arranging, hanging down a swing from this slide material, moving the slide material along the substantially lip-shaped groove in cross section, and at least two buried hardware and lower buried hardware in the longitudinal direction of the member. Is confirmed so that the buried hardware buried under the ceiling-side floor slab is on the same vertical line.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a longitudinal sectional view of a window structure to which the present invention is applied, and FIG. 2 is a transverse sectional view thereof. First, before describing a floor slab construction method according to the present invention, an example of a window structure to which the present invention is applied will be described in detail with reference to FIGS. This window structure, the lower deck S _L, building frame opening and to face the opening in the side cross section lip grooves (hereinafter, simply referred to as a lip groove.) 1a with the floor side rail hardware 1 is embedded with, the upper slab S _U, building frame opening and to face the opening in the side cross section lip grooves (hereinafter, simply referred to. lip grooves) is embedded ceiling rail hardware 2 with 2a, these both rail fittings 1,2 The wall fitting 10 is attached as an anchor hardware.

More specifically, fixing heads 3 and 4 are provided in which the heads are fitted into the lip grooves 1a and 2a of the rail fittings 1 and 2, and are movable in the longitudinal direction of the rail. , Mounting brackets 5 for the fixing bolts 3 and 4,
6 is fixed. The mounting brackets 5 and 6 have rising pieces 5a and 6a that rise in the opening direction, and fitting fitting bolts 7 and 8 from the wall fitting 10 are inserted into through holes formed in the rising pieces 5a and 6a. The wall fitting 10 is fixed. Incidentally, the fixing bolt 3,4 rail fittings 1,2 floor plate S _L, previously charging before being embedded in the S _U, continuous plurality in example wall fittings 10 laterally, so called Yokoren structure In such a case, the wall fitting 10 is slidable at the beginning, and firmly fastened and fixed after the position of the wall fitting 10 is finally determined. Also, lip grooves 10a and 10b are formed on the back side of the upper and lower frames 10B and 10C of the wall fitting 10 so that the fitting fixture mounting bolts 7 and 8 can be easily attached to the mounting brackets 5 and 6. 10a, 10b
A bolt mounting structure is adopted in which the head is fitted into the lip groove so as to be slidable in the lip groove direction.

[0008] On the other hand, the wall fitting 10 has a structure in which an upper middle glass G _U and a lower glass _GL are fitted and killed in the illustrated example, with a horizontal middle bone 10A in the middle. Any wall fitting such as a board type may be used. In addition, the vertical support is performed by a set bolt 11 in which a screw portion is screwed into the bottom wall portion of the lower frame 10C, and the wall fitting 10 is installed vertically by adjusting the screwing amount.

[0009] On the other hand, flashing structure, in the lower slab S _L side, the boundary of the floor side rail fittings 1 provided with a step on the indoor side and the outdoor side, an upper portion of the outdoor side surface of the floor side rail fittings 1 A water return piece 1b protruding in the outdoor direction is provided at the bottom to form a water return opening WP, and a seal 12 for filling a gap with the lower frame 10C is provided immediately above the water return piece 1b. in the outdoor side position of 11, the tip is completely blocked invasion such as rainwater provided Reinbariya 13 in contact with the lower slab S _L top to the lower frame 10C.

[0010] In the upper slab S _L side, and the outdoor-side projecting piece 2b of the ceiling rail hardware 2, thereby applying a seal 14 that fills the space between the upper frame 10B, which in from the outdoor-side position, the upper frame the tip to the underside of the upper deck S _U to prevent the intrusion of rain water or the like is provided an Reinbariya 15 making contact with 10B.

In the window structure, the relative positional relationship between the floor rail fitting 1 and the ceiling rail fitting 2 in the state shown in FIG. It goes without saying that the upper and lower pair of rail hardware 1 and 2 which are arranged to be sandwiched are accurately installed on the same vertical line, but the relative positional relationship when viewed in units of one floor slab S, that is, FIG. As shown in the figure, the relative position of the pair of upper and lower rail fittings 1 and 2 buried on the lower surface side and the upper surface side, respectively, across the floor slab S is also the floor rail fitting 1 and the ceiling rail fitting 2. Need to be accurately arranged on the same vertical line. A construction method for accurately and efficiently constructing these rail hardware 1 and 2 on the same vertical line will be described in detail below.

The floor slab S is formed from a floor slab (slab) thickness T.
Thin, about 1/3 in the example shown
Just ceiling slab S_PAnd this upper layer cast-in-place concrete
To S _GIt is composed of

[0013] The precast ceiling slab S _P, as shown in FIG. 4, the advance is the ceiling rail hardware 2 in advance embedded in the lower surface of the slab S, is bonded to the ceiling side rail fittings 2 The installation connection dividing member 16 is buried in a state in which an upper portion thereof protrudes outward and upward. In FIG. 4, a number of reinforcing bars 21, 21 ... are projecting on the upper surface of the precast ceiling slab S _P, a dowel muscle order to subsequently integrate the site concrete being Da設.
Further, the protrusion amount of the installation connection division member 16 is arbitrary, but it is desirable that the installation connection division member 18 be protruded to such an extent that it can be easily connected to the installation connection division member 18 connected to the upper side. projection amount 0, that is, the upper surface flush of precast roof slab S _P, the mounting for connection dividing member 18 which is connected to the upper may also be joined by welding or the like.

[0014] In the construction of the floor slab, the predetermined on the ceiling side
Position the precast ceiling floor slab S _PIs fixed. this
At this time, the floor side rail metal of the floor slab S of the lower floor already constructed
Object 1 and precast ceiling slab S to be installed_P
At a predetermined distance from the ceiling-side rail hardware 2 and
It is arranged exactly on the same vertical line over the entire length of the rail.
For this purpose, the following method is suitably employed.

In the present invention, as shown in FIG. 6, a suspension bolt 21 whose head is fitted into the lip groove 2a of the ceiling side rail fitting 2 is provided.
From below. And the down swing 22
The weight 22a is aligned with the lip groove 1a of the floor-side rail hardware 1, and the suspension bolt 21 is moved along the lip groove 2a as shown in FIG. Make sure they are on the same vertical line and fix them.

[0016] If the precast ceiling slab S _P is positioned at a predetermined position, the Crossed rebar on the upper surface side while the precast ceiling slab S _P and scaffolding, and protrudes from the precast ceiling slab S _P The upper installation connection division member 18 is joined to the upper part of the installation connection division member 16, and the floor-side rail hardware 1 is installed on the installation connection division member 18.

In the connection structure between the ceiling rail fitting 2 and the floor rail fitting 1, a longitudinal member for regulating the planar orientation direction of the installation connection member 16 is provided on the outdoor upper portion of the ceiling rail fitting 2. An upright piece 2c is formed along the direction, while the installation connection dividing member 16 is provided with the upright piece 2c.
The installation connection division member 16 is first fixed in a predetermined planar orientation direction by these contact relations. On the other hand, the floor-side rail hardware 1 side also has the floor connection rail 16. An erecting piece 1c is formed at the lower part of the side rail metal member 1 outside the outdoor side to restrict the planar orientation direction of the installation connection dividing member 18 along the longitudinal direction of the member. A contact portion 18c that contacts the piece 1c is formed, and the contact connection portion 18c is fixed in a predetermined planar orientation direction by the contact relationship. And, as shown in FIG.
The unit in which the floor-side rail hardware 1 and the installation connection dividing member 18 are integrated is brought in, and the installation connection division member 18 is mounted on the L-shaped flange 16 b of the installation connection division member 16.
The surfaces of the L-shaped flanges 18a are brought into close contact with each other and joined by connecting bolts 19.

In this embodiment, the connecting and dividing member 1 for installation is used.
6 and the connection splitting member 18 for installation, it is assumed that both the rail hardware 1 and 2 are positioned in the same direction by coupling at a plurality of locations in the longitudinal direction of the rail hardware 1 and 2. Preferably, as shown by the broken line, it is desirable to fix the contact upstanding piece 24 to the mounting connection division member 16 with a bolt or the like to make the same as the mounting surface. In addition, the ceiling side rail hardware 2 and the installation connection dividing member 1
6 is connected to the installation connection dividing member 16 by L
It is preferable to form a U-shaped flange 16a and form a seating surface portion 16d which is in close contact with the upper surface of the ceiling rail metal fitting 2 so that it can be stood upright in the vertical direction and then fixed with bolts 17. Floor side rail hardware 1 and installation connection dividing member 1
The same applies to the structure of the joint portion 8. Moreover, if a plurality of types of connection connection members 18 having different lengths are easily provided as the above-described installation connection member 18, as shown in FIG. 8, there is a step concrete S _O and the slab thickness is locally reduced. It is possible to easily cope with different cases.

By the way, in this embodiment, the structure in which the connecting member for installation is divided into the member 16 and the member 18 has been described in detail in consideration of transportation and the like. If permitted, a single member may be used without division. Further, the variations of the rail hardware 1, 2 and the wall fitting 10 are arbitrary. For example, as shown in FIG. 9 (A), the wall fitting 10 may be laid in the same plane using the linear rail hardware 1 and 2, or as shown in FIG. 9 (B). A bent part may be formed in 1 and 2, and the wall surface fitting 10 may be provided with an outside corner and an inside corner. Further, FIG. 9 (C)
As shown in FIG. 1, a curved wall fitting 10 can be erected as the curved rail fittings 1 and 2.

[0020] As described above, the floor slab S precast ceiling slab S _P
And have been described in detail the construction method of constructing and a field punch set concrete S _G, the present invention can be all the slab thickness is similarly applied to a case of the construction methods situ hitting set . That is, after assembling the support on the lower surface side of the floor slab, the formwork is arranged, the ceiling-side rail hardware 2 is installed, and then the connection member for installation is fixed to the ceiling-side rail hardware 2 and the floor side is fixed. The floor slab S may be constructed by fixing the rail hardware 1, assembling the reinforcing steel, and casting concrete.

[0021]

As described above in detail, according to the present invention, in a multi-story building in which a plurality of floors are vertically stacked, a predetermined embedded hardware or the like is efficiently installed on the floor slab of each floor while ensuring the installation accuracy. Will be able to do it.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an example of a window structure to which the present invention is applied.

FIG. 2 is a cross-sectional view thereof.

FIG. 3 is a vertical sectional view of a floor slab.

FIG. 4 is a perspective view of a main part of a precast ceiling floor slab.

FIG. 5 is a connection procedure diagram of the installation connection dividing member and the floor-side rail hardware to the precast ceiling slab.

FIG. 6 is a position adjustment procedure diagram between a pair of rail hardwares installed in a face-to-face arrangement across a hierarchical space.

FIG. 7 is a perspective view thereof.

FIG. 8 is a longitudinal sectional view showing another example of the floor slab structure.

FIG. 9 is a diagram illustrating an example of a planar shape of a rail hardware.

FIG. 10 is a longitudinal sectional view of a conventional window structure example.

[Explanation of symbols]

1 ... Folder rail hardware 2 ... Ceiling rail hardware 3,4 ...
Fixing bolts, 5.6 mounting brackets, 7.8 fitting fixture mounting bolts, 10 wall fittings, 11 set bolts, 13
· 15: Rain barrier, 16 · 18: Connection dividing member for installation, 21: Hanging bolt, 22: Swing down.

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[Procedure amendment]

[Submission date] November 14, 2000 (200.11.
14)

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

FIG. 7

FIG. 4

FIG. 5

FIG. 6

FIG. 8

FIG. 9

FIG. 10

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) E04C 2/30 E04C 2/30 Y E04B 5/02 2/50 K (72) Inventor Junmitsu Kaneda Tokyo 2-2-3 Uchisaiwai-cho, Chiyoda-ku Kawasaki Steel Corp. (72) Inventor: Isao Nishimi 1-1-11 Osaki, Shinagawa-ku, Tokyo

Claims (1)

[Claims] 1. In a story building where floors overlap vertically,
A floor slab construction method for accurately installing buried hardware buried on the lower surface of the ceiling slab, with the buried metal buried on the upper surface of the floor slab with the hierarchical space therebetween, The buried metal buried in the ceiling side slab is formed with a substantially lip-shaped groove in cross section facing the hierarchical space, and a slide member movable in the groove direction with respect to the substantially lip-shaped groove in cross section. Along with disposing, suspending a swing from this slide material, moving the slide material along the substantially lip-shaped groove in cross section, and at least at two places in the longitudinal direction of the member, an upper buried metal part and a lower buried metal part. A floor slab construction method for a multi-story building, characterized in that the relative positions of the floor slabs are checked so that the buried hardware buried under the ceiling side slabs is on the same vertical line.