JP4702661B2 - How to connect elevator walls - Google Patents

Description

  The present invention relates to an elevator wall connecting method, and more particularly to an elevator wall connecting method capable of reducing the cost of connecting the walls and widening the effective opening.

  Conventionally, when installing an elevator for temporary work (hereinafter referred to as a temporary elevator) beyond a predetermined height, a structural support based on the law, guide pillars for guiding the temporary elevator body during ascent and descent, It is necessary to take a measure called horizontal wall connection at an appropriate interval between the frame and the reinforced concrete structure. Specifically, a wall connecting material is installed between the guide column and the frame. Thereby, a temporary elevator main body is supported by a housing via a wall connecting material.

  In addition, when installing a temporary elevator on the outer periphery of an RC building in an apartment building, insert inserts in advance on the ends of the balconies, the surfaces of the beams, and the surfaces of the outer peripheral columns, and extend the temporary elevator in the vertical direction. A method of installing a wall connecting material manufactured according to the field conditions every time (when climbing) is generally taken.

  Here, recently, the use of PC is progressing in which columns and beams constituting the frame are PC columns (precast concrete columns) and PC beams (precast concrete beams). These PC columns and PC beams are produced in advance in a factory and used as columns and beams of a reinforced concrete structure in order to save labor and reduce the construction period.

  Further, most of the PC pillars and PC beams are coated on the outer peripheral surface in order to eliminate finishing work at a high place. Therefore, in the case of a PC pillar or PC beam that has been finished, since the coating is peeled off by the wall connecting material, the wall connecting material cannot be provided on the outer peripheral surface of the PC pillar or PC beam.

  Therefore, conventionally, as shown in FIG. 5, a wall connecting material is provided in the PC beam and PC pillar portion which are difficult to see directly in appearance.

  Specifically, FIG. 5 is a plan view showing a conventional temporary elevator 10, a housing 20, a wall connecting material 30A, and a wall connecting material 30B. In the figure, a temporary elevator 10 is composed of a temporary elevator body 11, a guide column 12A and a guide column 12B for guiding the temporary elevator body 11 when moving up and down. Is provided.

  The housing 20 is a reinforced concrete structure including a PC column 21A, a PC column 21B provided in the vertical direction, a PC beam 23 provided in the horizontal direction, and the like. The wall connecting material 30A is a member for connecting the PC beam 23 (part that is difficult to see in appearance) and the guide column 12A in the vicinity of the PC column 21A and supporting the guide column 12A to the PC beam 23.

  The wall connecting member 30B is a member for connecting the PC beam 23 (part that is difficult to see in appearance) and the guide column 12B in the vicinity of the PC column 21B, and for supporting the guide column 12B on the PC beam 23. These guide struts 12A and guide struts 12B have an approximately S-shaped complex shape.

JP-A-11-141271

  By the way, in the prior art, when the wall connecting material 30A and the wall connecting material 30B are provided on the PC beam 23 shown in FIG. Since the connecting material 30B has to be a complicated substantially S-shape, the wall connecting material becomes heavy, leading to an increase in cost.

  Further, conventionally, there has been a problem that the wall connecting material 30A and the wall connecting material 30B become an obstacle, and the effective opening D of the temporary elevator body 11 is narrowed, so that the getting-on / off characteristics are deteriorated. That is, when the effective opening D becomes narrow, it becomes difficult to get on and off the temporary elevator body 11.

  The present invention has been made in view of the above, and an object of the present invention is to provide a method for connecting elevator walls that can reduce the cost of connecting the walls and widen the effective opening.

In order to solve the above-described problems and achieve the object, the present invention is a concrete column that constitutes a frame, and is an installation in which a concrete column having an embedded member embedded so as to partially protrude from the upper surface is installed. And a connecting step of connecting between the guide column provided along the concrete pillar and guiding the elevator and the embedded member via a wall connecting material, wherein the wall connecting material is bent in the horizontal direction. A reaction force plate that takes force, and a connecting member that transmits to the concrete column a force that separates the guide column from the concrete column, and the reaction force plate is engaged with the embedded member, Is connected to the embedded member .

According to the present invention, a concrete column having an embedded member embedded so as to partially protrude from the upper surface is installed, and a wall is connected between the guide column provided along the concrete column and guiding the elevator and the embedded member. The wall connecting material is provided with a reaction force plate that takes a reaction force in the horizontal direction, and a connecting member that transmits the force that pulls the guide column away from the concrete column to the concrete column. Since the plate is engaged with the embedded member and the connecting member is connected to the embedded member, the shape of the wall connecting material is simpler than when the wall connecting material is provided on the concrete beam as in the prior art. Thus, the cost for connecting the walls can be reduced, and the effective opening can be widened.

  Embodiments of an elevator wall connecting method according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

  FIG. 1 is a plan view for explaining an elevator wall connecting method according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view taken along line AA shown in FIG. FIG. 3 is a cross-sectional view taken along line BB shown in FIG.

In FIG. 1, a lower PC pillar 100 is a precast concrete pillar that constitutes a frame (building), and corresponds to the PC pillar 21A shown in FIG. The lower PC column 100 is a concrete column including a plurality of reinforcing bars 101 arranged in a vertical direction, embedded members 102 _{1 to} 102 _4, and a plurality of reinforcing bars 103 arranged in a horizontal direction.

These embedding members 102 _{1 to} 102 ₄ are rod members embedded so that the upper end portion protrudes from the upper surface 100a as shown in FIGS. 2 and 3, and through the wall connecting member 200 described later, It serves to support the guide column 12A (see FIG. 5).

On the lower PC pillar 100, the upper PC pillar 300 shown in FIGS. 2 and 3 is disposed. The upper PC pillar 300 has the same configuration as the lower PC pillar 100. A recess 300 a is formed on the lower surface of the upper PC pillar 300. The recess 300 a is formed for the purpose of preventing the upper end portions of the embedded members 102 _{1 to} 102 _{4 from} coming into contact with the upper PC column 300 when the upper PC column 300 is disposed on the lower PC column 100. Yes.

  Returning to FIG. 1, the wall connecting material 200 corresponds to the wall connecting material 30 </ b> A shown in FIG. 5. However, the wall connecting material 200 is different in structure from the wall connecting material 30A, as will be described later. The wall connecting material 200 is a member that connects between the lower PC column 100 and the guide column 12A (see FIG. 5). In the wall connecting material 200, a reaction force plate 202 is welded to the base 201 on the lower PC pillar 100 side. On the other hand, a connecting plate 209 is welded to the guide column 12A (temporary elevator 10) side of the base 201.

The reaction force plate 202 is formed with a substantially V-shaped engaging portion 202a and engaging portion 202b. The reaction force plate 202 is provided so that the engaging portion 202 a and the engaging portion 202 b are engaged with the embedded member 102 ₂ and the embedded member 102 ₃ . Further, the reaction force plate 202 plays a role of pressing force in the direction of the guide column 12A and force in the direction perpendicular to the horizontal force generated in the guide column 12A (temporary elevator 10).

The connecting member 203 is a substantially U-shaped member, and is disposed on the right side of the reaction force plate 202 in the figure. The connecting member 203 is fastened to the base 201 via a fastener 204 and a fastener 205. The connecting member 206 is a substantially U-shaped member, and is disposed on the left side of the reaction force plate 202 in the figure. The connecting member 206 is fastened to the base 201 via a fastener 207 and a fastener 208. The connecting member 203 and the connecting member 206 are connected to the embedded member 102 ₁ and the embedded member 102 _4, and the force in the direction of separating the guide column 12 A (temporary elevator 10) from the lower PC column 100 is applied to the lower PC column 100. introduce.

  The connecting plate 209 is formed with a connecting portion 210a and a connecting portion 210b on the left and right. A wall connecting rod 211 and a wall connecting rod 212 are fastened to the connecting portion 210a by a fastener 213 (see FIGS. 2 and 3). Similarly, a wall connecting rod 214 is fastened to the connecting portion 210b by a fastener 215. The other ends (not shown) of the wall connecting rod 211 and the wall connecting rod 214 are fastened to the guide column 12A (see FIG. 5).

  Note that a lower PC column and an upper PC column having the same configuration as the lower PC column 100 and the upper PC column 300 described above are also provided at positions corresponding to the PC columns 21B illustrated in FIG. Further, a wall connecting material having the same configuration as that of the wall connecting material 200 is provided between the lower PC pillar and the guide column 12B.

As described above, according to the first embodiment, the lower PC pillar 100 having the embedded members 102 _{1 to} 102 ₄ embedded so as to partially protrude from the upper surface is installed and provided along the lower PC pillar 100. Since the guide column 12A for guiding the temporary elevator 10 (see FIG. 5) and the embedded members 102 _{1 to} 102 ₄ are connected via the wall connecting material 200, the wall connecting to the concrete beam is performed as in the prior art. Compared with the case where a material is provided, the shape of the wall connecting material 200 is simplified, the cost required for connecting the walls can be reduced, and the effective opening can be widened.

In the first embodiment described above, the configuration example in which the substantially U-shaped connecting member 203 and connecting member 206 shown in FIG. 1 are connected to the embedded member 102 ₁ and the embedded member 102 ₄ has been described. In order to improve the performance, a key-shaped connection member (connection member 403; see FIG. 4) may be used instead of the connection member 203 and the connection member 206. Hereinafter, this configuration example will be described as a second embodiment.

  FIG. 4 is a plan view for explaining an elevator wall connecting method according to a second embodiment of the present invention. In the figure, parts corresponding to those in FIGS. 1 to 3 are given the same reference numerals. In FIG. 4, a wall connecting material 400 is provided instead of the wall connecting material 200 shown in FIGS. 1 to 3.

  4 is a member that connects between the lower PC column 100 and the guide column 12A (see FIG. 5) in the same manner as the wall bonding material 200. In the wall connecting material 400, a reaction force plate 402 is welded to the lower PC pillar 100 side of the base 401. On the other hand, a connecting plate 407 is welded to the guide column 12A (temporary elevator 10) side of the base 401.

The reaction force plate 402, the engaging portion 402a and the engaging portion 402b of the substantially V-shape is formed, the reaction force plate 402 is embedded member 102 ₂ and the engagement portion 402a and the engagement portion 402b It is provided to be engaged with the embedded member 102 _3. Further, the reaction force plate 402 plays a role of pressing force in the direction of the guide column 12A and force in the direction perpendicular to the horizontal force generated in the guide column 12A (temporary elevator 10).

  The connecting member 403 is disposed on the left side of the reaction force plate 402 in the figure, and is fastened to the base 401 via a fastener 404. The distal end portion of the connecting member 403 is a substantially key-shaped connecting portion 403a. A connecting member having the same shape as the connecting member 403 is also arranged on the right side of the reaction force plate 402 in the figure, and is fastened to the base 401.

Connecting member 403, etc. are connected to the connection portion 403a and the like embedded member 102 ₁ etc., for transmitting the force to separate the guide column 12A (the temporary elevator 10) from the lower PC pillar 100 on the lower PC pillar 100.

  A connecting part (not shown) is formed on the connecting plate 407. A wall connecting rod 405 and a wall connecting rod 406 are fastened to the connecting portion by a fastener (not shown). The other ends (not shown) of the wall connecting rod 405 and the wall connecting rod 406 are fastened to the guide column 12A (see FIG. 5).

  As described above, according to the second embodiment, since the key-shaped connecting member 403 and the like are used, workability when attaching the wall connecting material 400 is improved.

  As described above, the elevator wall connecting method according to the present invention is useful for connecting a wall when a temporary elevator is provided on a housing constituted by a PC pillar or the like.

It is a top view explaining the wall connection method of the elevator by Example 1 concerning this invention. It is AA sectional view taken on the line shown in FIG. It is the BB sectional view taken on the line shown in FIG. It is a partially cut perspective view explaining the wall joining method of the elevator by Example 2 concerning this invention. It is a top view explaining the wall connecting method of the conventional elevator.

Explanation of symbols

100 lower PC pillars 102 _{1-102 4} embedded member 200 the wall ties 201 base 202 reaction force plate 203 connecting member 211 the wall tie rod 300 top PC pillars 300a recess 400 reaction force wall ties 401 base 402 plate 403 connecting member 403a connecting portion 405 Wall connecting rod

Claims (3)

An installation step of installing a concrete pillar that is a concrete pillar constituting the frame and has an embedded member embedded so that a part thereof protrudes from the upper surface;
A connecting step of connecting between the guide column provided along the concrete pillar and guiding the elevator and the embedded member via a wall connecting material ,
The wall connecting material includes a reaction force plate that takes a reaction force in a horizontal direction, and a connecting member that transmits a force separating the guide support from the concrete pillar to the concrete pillar, and the reaction force plate includes the embedded member. The wall connecting method according to claim 1 , wherein the connecting member is connected to the embedded member . The wall connecting method according to claim 1 , wherein the connecting member is substantially U-shaped . The wall connecting method according to claim 1 , wherein a distal end portion of the connecting member has a substantially key shape .

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