JP5459784B2 - Exterior wall plate mounting method and exterior wall plate mounting structure - Google Patents

Description

  The present invention relates to an outer wall plate mounting method and an outer wall plate mounting structure. Specifically, the present invention relates to an outer wall plate mounting method and an outer wall plate mounting structure in which an outer wall plate is attached to an outer peripheral portion of a reinforced concrete structure in which a plurality of floor frames are stacked and arranged.

  Traditionally, there are buildings with precast concrete outer wall plates attached. The outer wall version is supported on a frame such as a beam or a floor via a fastener, for example. The fastener is composed of an outer wall side fastener fixed to the outer wall version and a case side fastener fixed to the casing, and the outer wall version is supported by the casing by connecting the outer wall side fastener and the casing side fastener. .

This building is constructed in the following procedure, for example (see Patent Document 1).
That is, in a state where the floor frame of the predetermined floor is constructed, an outer wall plate is built in the predetermined floor, and the outer wall plate is temporarily fixed to the predetermined floor using a push-pull support or a chain. Next, a floor frame of the upper floor of the predetermined floor is constructed, and then the outer wall plate is supported on the floor frame of the upper floor. By repeating such a procedure, a building is constructed from the lower layer to the upper layer.

JP 2002-106174 A

By the way, in the above methods, when constructing a floor frame, it is necessary to arrange the frame side fastener at a predetermined position and fix it to a formwork or a reinforcing bar material of the floor frame. However, when trying to arrange the housing side fastener at a predetermined position, there is a problem that the already installed outer wall plate or the outer wall side fastener becomes an obstacle to the fixing work of the housing side fastener and the workability is lowered.
In particular, when the housing side fastener is a large-sized hardware, there is a problem that the carrying and arrangement of the housing side fastener takes a considerable amount of time and the workability is greatly reduced.

  An object of the present invention is to provide an outer wall slab attachment method and an outer wall slab attachment structure that can improve the workability of the fastener on the housing side.

  The outer wall plate mounting method according to claim 1 is an outer wall plate mounting method in which an outer wall plate is attached to an outer peripheral portion of a reinforced concrete structure in which a plurality of floor frames are laminated, and the outer wall plate has a plate-like shape. An outer wall plate body, a first outer wall plate fastener provided on the lower end side of the outer wall plate body, and a second outer wall plate fastener provided on the upper end side of the outer wall plate body, wherein n is an integer (n is an integer) ) Layer floor frame is constructed, and the outer wall plate is prepared with the first floor frame fastener and the second floor frame fastener provided on the floor frame, and the second outer wall plate fastener of the outer wall plate is A step of temporarily fixing a second floor case fastener for the (n + 1) layer floor case, and a first outer wall version fastener of the outer wall plate coming into contact with an upper surface of the first floor case fastener of the nth layer The outer wall plate is built in the nth layer. And laying a (n + 1) -th layer floor frame mold, positioning the second floor frame fastener temporarily fixed to the second outer wall fastener of the outer wall plate in the mold frame, and The step of attaching the first floor frame fastener in the mold and the step of constructing the floor frame of the (n + 1) layer by placing concrete in the mold and placing concrete are repeated. It is characterized by.

  The outer wall slab mounting structure according to claim 2 is an outer wall slab mounting structure in which an outer wall slab is attached to an outer peripheral portion of a reinforced concrete structure in which a plurality of floor frames are laminated, and the outer wall slab has a plate-like shape. An outer wall version main body, a first outer wall version fastener provided on the lower end side of the outer wall version main body, and a second outer wall version fastener provided on the upper end side of the outer wall version main body. A first floor frame fastener on which the first outer wall version fastener is placed; and a second floor frame fastener that supports the second outer wall version fastener in a state where a predetermined degree of freedom is ensured. At the time of building, a second floor frame fastener for a floor frame on the upper side of the external wall plate is temporarily fixed to the second external wall plate fastener of the external wall plate.

According to this invention, when the outer wall plate is installed, the second floor frame fastener for the floor frame on the upper side of the outer wall plate is temporarily fixed to the second outer wall plate fastener of the outer wall plate. Therefore, since the second floor frame fastener is arranged at a predetermined position simply by installing the outer wall version, when constructing the upper floor frame, the second floor frame fastener to be driven into the floor frame is attached to the installation position of the floor frame. Since it is not necessary to carry and arrange, it is possible to improve the workability of the fastener on the housing side.
In particular, in the case where the housing-side fastener is a large-sized hardware, since the labor for transporting the housing-side fastener increases, such an effect becomes remarkable.

  According to the present invention, when the outer wall plate is installed, the second floor frame fastener for the floor frame on the upper side of the outer wall plate is temporarily fixed to the second outer wall plate fastener of the outer wall plate. Therefore, since the second floor frame fastener is arranged at a predetermined position simply by installing the outer wall version, when constructing the upper floor frame, the second floor frame fastener to be driven into the floor frame is attached to the installation position of the floor frame. Since it is not necessary to carry and arrange, it is possible to improve the workability of the fastener on the housing side. In particular, in the case where the housing-side fastener is a large-sized hardware, since the labor for transporting the housing-side fastener increases, such an effect becomes remarkable.

It is a rear view of the curtain wall to which the outer wall version attachment method which concerns on one Embodiment of this invention was applied. It is a cross-sectional view of the fastener portion of the curtain wall according to the embodiment. It is a longitudinal cross-sectional view of the fastener part of the curtain wall which concerns on the said embodiment. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is a figure (the 1) for demonstrating the procedure which builds the building which concerns on the said embodiment. It is FIG. (2) for demonstrating the procedure which builds the building which concerns on the said embodiment.

FIG. 1 is a rear view of a curtain wall 1 as an outer wall plate to which an outer wall plate mounting method according to an embodiment of the present invention is applied.
The curtain wall 1 is attached to the outer peripheral part of the building 2 as a reinforced concrete structure.
The building 2 includes a beam 3 (see FIGS. 4 and 5), a floor 4 as a floor frame, and a pillar (not shown). Since this building 2 has a plurality of floors, a plurality of floors 4 are vertically stacked.

The curtain wall 1 is provided on a plate-like outer wall plate body 10 made of precast concrete, a pair of first outer wall plate fasteners 11 provided on the lower end side of the outer wall plate body 10, and an upper end side of the outer wall plate body 10. A pair of second outer wall version fasteners 12.
The second outer wall plate fastener 12 extends to the curtain wall 1 located immediately above the curtain wall 1 and is connected to the curtain wall 1 immediately above.

  Each floor 4 supports a first floor case fastener 21 on which the first outer wall version fastener 11 of the curtain wall 1 is placed and a second outer wall version fastener 12 of the curtain wall 1 in a state where a predetermined degree of freedom is secured. 2nd floor frame fastener 22 to be provided.

  2 and 3 are a transverse sectional view and a longitudinal sectional view of the fastener portion of the curtain wall 1. FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3, and FIG. 5 is a cross-sectional view taken along the line BB in FIG.

The first floor frame fastener 21 includes a substantially L-shaped fastener body 211 driven into the reinforced concrete frame of the floor 4, and a shear bar 212 joined to the fastener body 211.
The upper surface of the fastener body 211 is exposed from the floor 4 and is flush with the floor 4.

  The first outer wall plate fastener 11 includes a substantially L-shaped fastener body 111 provided on the back side of the outer wall plate body 10 and a bolt that is screwed into the fastener body 111 and contacts the first floor frame fastener 21 at the tip. 112, a pair of plate-like plates 113 joined to the fastener body 111 and extending toward the inside of the outer wall plate body 10, and shear bars joined to these plates 113 and extending along the extending direction of the outer wall plate body 10 114.

The bolt 112 extends in the vertical direction, and the tip of the bolt 112 is in contact with the upper surface of the fastener body 211 of the first floor frame fastener 21.
By rotating the bolt 112 and changing the distance from the fastener body 111 of the first floor frame fastener 21 to the tip of the bolt 112, the height of the curtain wall 1 from the surface of the floor 4 can be adjusted. Yes.

  The second floor frame fastener 22 includes a flat plate 221 driven into the reinforced concrete frame of the floor 4, a shear bar 222 bonded to the plate 221 and extending in the horizontal direction, and a plate 221 bonded to the floor 4. And a bolt 223 that protrudes from the surface and extends in a substantially vertical direction.

  The second outer wall plate fastener 12 includes a plate-like plate 121 provided along the surface on the back side of the outer wall plate main body 10, and a plate 122 joined to the plate 121 and extending substantially parallel to the surface of the floor 4. A pair of flat plate plates 123 that are joined to the plate 121 and extend to the inside of the outer wall plate body 10, and a shear bar 124 that is joined to the plates 123 and extends along the extending direction of the outer wall plate body 10 are provided.

  A through hole 125 is formed in the plate 122, and the bolt 223 of the second floor frame fastener 22 is inserted into the through hole 125. Thereby, the curtain wall 1 can slide in the vertical direction with respect to the floor 4.

Further, the upper part of the plate 121 extends to the curtain wall 1 immediately above and is connected to the outer wall plate body 10 of the curtain wall 1 immediately above.
Specifically, a loose hole 126 extending in the vertical direction is formed in the upper part of the plate 121. On the other hand, a bolt 101 protruding in the horizontal direction is provided at the lower part of the outer wall plate body 10 of the curtain wall 1. The bolt 101 is inserted into the loose hole 126 of the plate 121, and a nut 127 is tightened. Thereby, the curtain wall 1 immediately above is slidable in the vertical direction with respect to the curtain wall 1.

A bolt 128 extending in the horizontal direction is screwed onto the upper portion of the plate 121, and the tip of the bolt 128 is in contact with the surface of the outer wall plate body 10 of the curtain wall 1 immediately above.
By rotating the bolt 128 and changing the distance from the plate 121 to the tip of the bolt 118, the projecting dimension in the out-of-plane direction of the curtain wall 1 can be adjusted.

The procedure for constructing the building 2 will be described with reference to FIGS.
As an initial state, as shown in FIG. 6, the floor 4 of the nth layer is constructed, and the first floor frame fastener 21 and the second floor frame fastener 22 are driven into the reinforced concrete frame of the floor 4. And
Further, the second outer wall version fastener 12 of the curtain wall 1 of the (n-1) layer is in a state of being connected to the second floor frame fastener 22 driven into the floor 4.

  First, the n-th layer curtain wall 1 is prepared, and the second floor frame fastener 22 for the (n + 1) -th layer is temporarily fixed to the second outer wall version fastener 12 of the curtain wall 1.

Next, as shown in FIG. 7, the prepared curtain wall 1 is built in the nth layer and temporarily supported on the floor 4 of the nth layer by a push-pull support or a chain (not shown).
At this time, the bolt 112 of the first outer wall version fastener 11 of the curtain wall 1 is brought into contact with the upper surface of the first floor case fastener 21 of the floor 4 of the nth layer. Further, the bolt 101 of the curtain wall 1 is inserted into the loose hole 126 of the second outer wall version fastener 12 and the nut 127 is tightened.

  Next, a second (n + 1) -th floor floor 4 (shown by a broken line in FIG. 7) is built and the second floor temporarily fixed to the second outer wall fastener 12 of the curtain wall 1 in this form. The housing fastener 22 is positioned. Although not shown, a first floor frame fastener 21 for the curtain wall 1 of the (n + 1) th layer is attached in the form of the floor 4.

Next, reinforcement is placed in the form of the floor 4 and concrete is placed to construct the floor 4 of the (n + 1) th layer. Thus, the first floor frame fastener 21 and the second floor frame fastener 22 are driven into the reinforced concrete frame of the floor 4 of the (n + 1) th layer, and the curtain wall 1 of the nth layer is supported.
After that, push-pull support and chains are removed.

  The above steps are repeated while increasing n by 1.

According to this embodiment, there are the following effects.
(1) When the curtain wall 1 was built, the second floor frame fastener 22 for the floor 4 on the upper side of the curtain wall 1 was temporarily fixed to the second outer wall version fastener 12 of the curtain wall 1. Therefore, since the second floor frame fastener 22 is disposed at a predetermined position simply by installing the curtain wall 1, when the upper floor 4 is constructed, the second floor frame fastener 22 driven into the floor 4 is attached to the floor 4. Eliminates the need to transport to the installation location. Therefore, the workability of the second floor frame fastener 22 can be improved.

  (2) Since the height from the surface of the floor 4 of the curtain wall 1 can be adjusted by the bolt 112, the position of the horizontal joint can be lowered to the vicinity of the upper surface of the floor 4 by adjusting the bolt 112. .

  It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.

1 ... Curtain wall (outer wall version)
2… Building (steel reinforced concrete structure)
3 ... Beam 4 ... Floor (floor frame)
DESCRIPTION OF SYMBOLS 10 ... Outer wall version main body 11 ... 1st outer wall version fastener 12 ... 2nd outer wall version fastener 20 ... Outer wall version main body 21 ... 1st floor frame fastener 22 ... 2nd floor frame fastener 111 ... Fastener body 112 ... Bolt 113 ... Plate 114 ... Shear bar 121 ... Plate 122 ... Plate 123 ... Plate 124 ... Shear bar 125 ... Through hole 126 ... Loose hole 127 ... Nut 128 ... Bolt 211 ... Fastener body 212 ... Shear bar 221 ... Plate 222 ... Shear bar 223 ... Bolt

Claims (2)

An outer wall plate mounting method for attaching an outer wall plate to an outer peripheral portion of a reinforced concrete structure in which a plurality of floor frames are arranged in layers,
The outer wall plate includes a plate-like outer wall plate body, a first outer wall plate fastener provided on the lower end side of the outer wall plate body, and a second outer wall plate fastener provided on the upper end side of the outer wall plate body. Prepared,
An outer wall plate is prepared in a state where an n-th (n is an integer) layer floor frame is constructed, and the first floor frame fastener and the second floor frame fastener are provided on the floor frame. Temporarily fixing the second floor case fastener for the (n + 1) layer floor case to the two outer wall version fasteners;
Building the outer wall plate in the nth layer so that the first outer wall plate fastener of the outer wall plate contacts the upper surface of the first floor case fastener of the nth layer;
A floor frame mold of the (n + 1) th layer is built, and the second floor frame fastener temporarily fixed to the second outer wall version fastener of the outer wall plate is positioned in the mold frame, Attaching the first floor frame fastener;
A method of attaching an outer wall slab characterized by repeating the step of constructing a floor frame of the (n + 1) th layer by placing concrete in the mold and placing concrete. An outer wall plate mounting structure in which an outer wall plate is attached to an outer peripheral portion of a reinforced concrete structure in which a plurality of floor frames are arranged in layers,
The outer wall plate is a plate-like outer wall plate body,
A first outer wall version fastener provided on the lower end side of the outer wall version main body,
A second outer wall version fastener provided on the upper end side of the outer wall version main body,
Each floor case includes a first floor case fastener on which the first outer wall version fastener is placed, and a second floor case fastener that supports the second outer wall version fastener with a predetermined degree of freedom secured. Prepared,
When installing the outer wall plate, the second outer wall plate fastener of the outer wall plate is temporarily fixed with a second floor frame fastener for the upper floor frame of the outer wall plate. Construction.

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