JP3140983B2 - Floor slab construction method for multi-story buildings - Google Patents

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]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a multi-story building in which floors are vertically overlapped with each other, and a predetermined buried metal object is accurately placed on each of upper and lower sides of a floor slab. A floor slab construction method for installing, wherein the lower slab thickness is smaller than the slab thickness dimension, and a lower buried metal member is previously buried on the lower surface side of the slab and joined to the lower buried metal member. At the construction site, a precast ceiling slab having the upper end side of the installation connecting member projecting or exposing upward is manufactured; and at a construction site, the precast ceiling slab is arranged and fixed at a predetermined position on the ceiling side. After the upper buried metal buried on the upper surface side of the floor slab is fixed to the upper end of the connecting member, concrete is cast between the precast ceiling slab and the upper buried metal.

As a modified example of the first invention, a floor slab construction method is provided for placing predetermined buried hardware with high accuracy on the upper and lower sides of a floor slab in a multistory building where floors vertically overlap. The lower slab is thinner than the thickness of the floor slab, the lower buried metal is previously buried on the lower surface side of the slab, and the upper end side of the split installation connecting member joined to the lower buried metal is raised upward. A precast ceiling slab that has been projected or exposed to the ceiling is manufactured at a construction site; after this precast ceiling slab is fixed at a predetermined position on the ceiling side, the precast ceiling slab is fixed to the upper end of the split installation connection member. After joining the remaining split installation connection members and fixing the upper buried hardware buried above the floor slab to the upper end of the remaining split installation connection members, these precast ceiling slabs and upper buried hardware are Between A method is provided, wherein concrete is poured into the concrete.

In each of the above-mentioned inventions, the upper and lower buried hardwares are formed with upright pieces or upright surfaces along the longitudinal direction of the member for regulating the planar orientation direction of the installation connection member. A contact portion with the upright piece or the upright surface is formed in the installation connection member, and engagement and cooperation between the upright piece or the upright surface of the upper and lower buried hardware and the abutment portion of the installation connection member are formed. It is desirable that the upper and lower buried hardware be oriented in the same direction.

[0008]

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 bolts 3, 4 whose heads are fitted into the lip grooves 1a, 2a of the rail hardware 1, 2 are provided so as to be 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 employed in which a head is fitted into the lip groove so as to be slidable in the lip groove direction.

Meanwhile, the wall fittings 10 has a horizontal during bone 10A in the middle in the illustrated example, the upper glass G _U, there is a structure with killing fitting the lower glass G _L, argument difference shoji type or 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.

On the other hand, on the lower floor slab S _L side, a step is provided between the indoor side and the outdoor side with the floor side rail hardware 1 as a boundary, and the upper part of the outdoor side surface of the floor rail hardware 1 is provided on the lower floor slab SL side. 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.

[0012] 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-side rail hardware 1 and the ceiling-side rail hardware 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.

[0014] slab S is the thin than slab thickness T, from the precast ceiling slab S _P being a thickness of about 1/3 in the illustrated example, the field hitting set concrete S _G of the upper layer Be composed. The precast ceiling slab S _P, as shown in FIG. 4
As shown in the figure, the ceiling rail metal 2 is previously buried in advance on the lower surface side of the floor slab S, and the upper part of the split installation connecting member 16 joined to the ceiling rail metal 2 is directed outward and upward. It is buried in a protruding state. 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 projecting amount of the split installation connecting member 16 is optional, but it is desirable that the split installation connecting member 16 is protruded to such an extent that the connecting operation with the split installation connecting member 18 connected to the upper side can be easily performed. projection amount 0, that is, the upper surface flush of precast roof slab S _P, the split mounting connecting member 18 which is connected to the upper may also be joined by welding or the like.

[0015] In the floor plate construction, fixing the precast ceiling slab S _P to a predetermined position on the ceiling side. At this time, already a floor side rail fittings 1 the lower floor slab S which is construction, precast ceiling slab S _P yet to be installed
The following method is preferably adopted in order that the above-mentioned ceiling-side rail hardware 2 is precisely arranged on the same vertical line with a predetermined separation distance over the entire length of the rail.

As shown in FIG. 6, a suspension bolt 21 whose head is fitted into the lip groove 2a of the ceiling rail metal fitting 2 is provided, and a swing down 22 is hung from the suspension bolt 21. Then, the weight 22a of the down swing 22 is aligned with the lip groove 1a of the floor rail metal fitting 1, and as shown in FIG.
a, and fix the rail fittings 1 and 2 by checking that they are on the same vertical line over the entire length.

[0017] 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 split installation connection member 18 is joined to the upper portion of the split installation connection member 16, and the floor-side rail hardware 1 is installed on the split installation connection member 18.

In the connection structure between the ceiling rail fitting 2 and the floor rail fitting 1, a member longitudinal portion for regulating the planar orientation direction of the installation connection member 16 is provided on the upper outdoor side of the ceiling rail fitting 2. An upright piece 2c is formed along the direction, while the upright piece 2c is
The split mounting connection 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 An erecting piece 1c is formed in the lower part of the side rail fitting 1 along the longitudinal direction of the member for regulating the planar orientation direction of the split installation connection member 18, while the split installation connection member 18 is provided with the erecting piece. A contact portion 18c that contacts the piece 1c is formed, and the split installation connection member 18 is fixed in a predetermined planar orientation direction by these contact relationships. And, as shown in FIG.
The unit in which the floor-side rail hardware 1 and the split installation connection member 18 are integrated is brought in, and the split installation connection member 18 is placed on the L-shaped flange 16 b of the split installation connection 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 member 1 for split installation is used.
6 and the connecting member 18 for split installation, it is premised 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 a broken line, it is desirable to fix the contact upstanding piece 24 to the same as the mounting surface with a bolt or the like to the split installation connecting member 16. Also, the ceiling side rail hardware 2 and the split installation connection member 1
6 is connected to the side of the split installation connecting member 16 by L.
It is preferable to form a 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 fixed with bolts 17. Floor side rail hardware 1 and split installation connection member 1
The same applies to the structure of the joint portion 8. Further, if a plurality of types having different length dimensions are facilitated as the above-mentioned divided installation connecting members 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.

[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 longitudinal sectional view of a floor slab S portion.

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

FIG. 5 is a joining procedure diagram of a connection member for split installation and a floor-side rail hardware to a 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 member for split installation, 21: Hanging bolt, 22: Swing down.

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Isao Nishimi 2-7-23 Kiba, Koto-ku, Tokyo Inside Nippon Lighting Co., Ltd. (56) References JP 5-287832 (JP, A) JP Hei 8-319767 (JP, A) Japanese Utility Model Showa 49-107117 (JP, U) Japanese Utility Model Hei 5-11018 (JP, U) JP 4-28066 (JP, B2) JP 7-109119 (JP) , B2) (58) Field surveyed (Int. Cl. ⁷ , DB name) E04B 2/56 633 E04B 2/56 605 E04B 2/82 501 E04B 2/82 511 E04B 2/82 521 E04B 5/32

Claims (3)

(57) [Claims] 1. In a story building where floors overlap vertically,
A slab construction method for accurately installing predetermined buried hardware on the upper and lower sides of a slab over a slab.The slab is thinner than the slab thickness, and the lower slab is embedded on the lower surface side of the slab. At the construction site, a precast ceiling slab is manufactured in which the metal is buried in advance and the upper end side of the installation connection member joined to the lower buried metal is projected or exposed upward. After arranging and fixing the floor slab at a predetermined position on the ceiling side, after fixing the upper buried metal buried on the upper surface side of the slab to the upper end of the connection member for installation, the precast ceiling slab and the upper buried metal are fixed. A method for constructing a floor slab of a multi-story building, comprising placing concrete between the slab and the floor. 2. In a story building where floors overlap vertically,
A slab construction method for accurately installing predetermined buried hardware on the upper and lower sides of a slab over a slab.The slab is thinner than the slab thickness, and the lower slab is embedded on the lower surface side of the slab. At the construction site, a precast ceiling slab is prepared in which the metal is buried in advance and the upper end side of the split installation connecting member joined to the lower buried metal is projected or exposed upward. After arranging and fixing the ceiling slab at a predetermined position on the ceiling side, the remaining split installation connection members are joined to the upper ends of the split installation connection members, and the upper ends of the remaining split installation connection members are joined together. A floor slab construction method for a multi-story building, comprising fixing an upper buried metal buried above a floor slab to a portion, and then casting concrete between the precast ceiling slab and the upper buried metal. 3. The upper and lower buried metal parts are formed with upright pieces or upright surfaces along the member longitudinal direction for regulating the planar orientation direction of the installation connection member. Abutment portions for the upright pieces or the upright surfaces are formed, and the upright pieces or the upright surfaces of the upper and lower buried hardware are engaged with the abutment portions of the installation connection member so that the upper and lower sides are engaged. The floor slab construction method for a multi-story building according to claim 1 or 2, wherein the buried hardware is oriented in the same direction.