JPH11343729A - Slide rising type suspended scaffold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suspended scaffold capable of carrying out skeleton work in the highest stage in parallel with exterior finish work in the lowest stage, for example, the height equivalent to four floors in a building is used as one unit to constitute, and having such constitution as the suspended scaffold is constituted by slidably raising every unit as a unit in one floor at a time while adjusting it to the progress of the skeleton work. SOLUTION: A slide rising type suspended scaffold is constituted of a vertical H-shaped steel frame 1 bearing surface rigidity, box-shaped truss structural bodies 3 installed on horizontal brackets on the lower end section of the H- shaped steel frame 1, a frame-work scaffold 4 built up a plurality of stages on the truss structural bodies 3 and preceding brackets 6 mounted to the outside of a structural skeleton 5 in advance. Then, flange parts of the H-shaped steel frame 1 lead a slide rising by the preceeding brackets 6 and are positioned to a rising position to fix.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the construction of a high-rise building without an external balcony, and more particularly to the construction and exterior finishing of a reinforced concrete building having no preceding reaction element. Belongs to the technical field of mobile external scaffolding for construction, in particular, the uppermost section can be used for building work and the lowermost section can be used for exterior finishing work in parallel, for example, one unit with a height of 4 floors of a building The present invention relates to a suspended scaffold configured to slide up in units of one unit by one floor in accordance with the progress of skeleton construction.

[0002]

2. Description of the Related Art In the construction work of a building without an external balcony, a scaffold is always required for exterior finishing work.

Conventionally, mobile external scaffolds used for construction work have been developed and used in various types. For example, Japanese Patent Publication No. 4-16583 and Japanese Patent Publication No. 4-16583
Japanese Patent Laid-Open Publication No. H11-15064 discloses a suspension scaffold having a height equivalent to about two floors and also serving as a formwork supporting a concrete formwork. Japanese Patent Publication No. 4-16583 also describes a scaffold with a formwork suspended vertically. Japanese Patent Publication No. 4-16583 discloses an automatic ascending type horizontal scaffold in which an outer working floor is arranged outside a steel structure and an inner working floor is arranged inside, and the climbing jacks are respectively moved up and down by a climbing jack. ing. Japanese Patent Publication No. 4-16583 discloses a two-stage hanging scaffold for hanging an outer wall, suspending a plurality of stages, suspending a gondola above the stage, and suspending the stage to the upper floor by the gondola. Have been. Japanese Patent Application Laid-Open No. Hei 9-137603 describes an external curing scaffold that can be rearranged upward as the construction work progresses.

[0004]

As described above, mobile external scaffolds of various structures and forms have been developed and put to practical use according to the structural type of the building and the purpose of use. However, for example, Japanese Patent Application Laid-Open No. Hei 9-137603 describes
The external curing scaffold described in the official gazette is large and heavy so as to collectively cover the outer wall surface of the building, and has a structure in which the whole is lifted at a time, and the scaffold itself also serves as a means for positioning and fixing. Because of the configuration having the raised drive unit, the cost of manufacturing a scaffold that is supposed to be a temporary material becomes very expensive.
In addition, re-arrangement requires a complicated operation and is not practical. A dismantling method after use is also disclosed, but once it is necessary to divide the entire large and heavy scaffold into a plurality of units as high work at the top of the building,
There is a problem with safety.

Accordingly, an object of the present invention is to provide a suspension scaffold capable of performing a building construction and an exterior finishing construction of a building in parallel,
Inexpensive, easy to manufacture using existing materials and leasing materials, saving labor for installation, easy disassembly after use, high safety, and greatly contributing to shortening the construction period. Is to provide a foothold.

[0006]

Means for Solving the Problems As means for solving the above-mentioned problems, a slide ascending type suspension scaffold according to the first aspect of the present invention comprises a vertical H-shaped steel frame supporting surface rigidity, A box-type truss structure installed on a horizontal bracket at a lower end of the H-shaped steel frame;
It consists of a frame scaffold assembled on the truss structure in a plurality of stages, and a precedent metal fitting previously attached to the outer surface of the structural body, and a flange portion of the H-shaped steel frame guides the ascending slide by the precedent metal fitting. And is positioned and fixed at the ascending position.

According to a second aspect of the present invention, the assembling height of the frame scaffold in the slide ascending type suspended scaffold according to the first aspect is determined, and the frame construction of the structure is performed at the highest level, and the exterior finishing work is performed at the lowest level. Height and width 1
It is a convenient size as a unit.
Each unit is slid up using an H-shaped steel frame.

According to a third aspect of the present invention, in accordance with the first or second aspect of the present invention, the slide-raising-type suspended scaffold is slid up by one floor in units of one unit in accordance with the progress of the structural work of the structure. The structure which is completed and used up to the top is lowered to the ground one unit at a time and dismantled.

According to a fourth aspect of the present invention, in the slide ascending type suspended scaffold according to the first aspect, the preceding receiving hardware is H
The guide plate sandwiching the flange of the shaped steel frame is configured to be freely opened and closed by a hinge.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The slide ascending type suspension scaffold according to the first aspect of the present invention is basically assembled in the form shown in FIGS. .

[0011] The slide ascending suspension scaffold according to the present invention comprises:
In summary, a vertical H-shaped steel frame 1 supporting surface rigidity, and a box-type truss structure 3 installed on an outwardly horizontal bracket 2 provided at a lower end of the H-shaped steel frame 1 And a frame scaffold 4 assembled by stacking a plurality of stages on the truss structure 3 and a preceding metal fitting 6 previously attached to the outer surface of the structural body 5. The flange portion is guided on the ascending slide by the preceding receiving metal member 6, and is positioned and fixed at the ascending position that has been re-arranged.

FIG. 1 shows the construction of a structural skeleton 5 up to the third floor above the ground, on which the preceding hardware 6 is attached, as a cast-in-place reinforced concrete using a conventional external scaffold (total scaffold) 7. I have. And, as an initial stage of assembling the "approximately lower half" of the slide ascending suspension scaffold of the present invention,
The stage in which the erected H-shaped steel frame 1 is set upright along the outer surface of the external scaffold 7 and the erected box-type truss structure 3 is also set on the horizontal bracket 2 at the lower end thereof is shown. ing. The advance receiving hardware 6 is attached to the outer surfaces of the beams on the second and third floors of the structural body 6 in advance.

The H-shaped steel frame 1 is formed by combining H-shaped steel pieces of about 125 × 125 mm vertically and horizontally when viewed from the front side as shown in FIG. 8 so as to support the surface rigidity of one unit of the suspended scaffold. And is formed in a lattice-shaped frame structure of a size and shape that covers the entire surface of one unit of the suspended scaffold. In order to prevent the H-shaped steel frame 1 from overturning, a plurality of locations are fixed to the external scaffold 7 by catch clamps 8. The box-type truss structure 3 (also referred to as a multi-truss) is used as a support (cross beam) instead of the ground of the frame scaffold 4, and is formed by using a single tube truss material that is already formed. 6
What is assembled to a size of about 00 × 700 mm is used. The truss structure 3 is firmly fixed to the bracket 2 by bolting a metal member (not shown).

The embodiment shown in FIG. 1 and subsequent figures shows the procedure for assembling the H-shaped steel frame 1 vertically and assembling the frame scaffold 4 upward. It just adopted. H on site
If sufficient space is provided to allow the shaped steel frame 1 to lie on its side, and horizontal laying work is required, such an assembling work may be employed.

FIG. 2 shows a stage in which four frames (four steps) of the frame scaffold 4 are assembled on the truss structure 3.
Handrails, cloth frames and lifting ramps are of course also attached. Furthermore,
The assembled frame scaffold 4 and the H-shaped steel frame 1 are connected by a connecting member 9 (such as a quick bracket), and a curing net 10 is attached to the outer surface side (see FIG. 3).

FIG. 3 shows a stage in which the construction of the structural body 5 is completed up to the third floor above the ground, and furthermore, the structural work on the fourth floor is performed. After disassembling the external scaffold 7 to the height of the second floor above the ground and eliminating obstacles in the work, the lower half suspended scaffold (the H-shaped steel frame 1) assembled as described above is moved to the second floor and a crane or the like. The stage at which it was lifted and set so as to be supported by the preceding receiving hardware 6 on the third floor is shown. Therefore, the frame work on the fourth floor above the ground can be safely performed.

The structure of the preceding metal fitting 6 and the engagement with the H-shaped steel frame 1 are configured as shown in FIGS. That is, the advance metal receiving member 6 is formed by fixing two guide plates 6a, 6a vertically arranged in parallel so as to sandwich both sides of the flange 1a of the H-shaped steel frame 1 to the base plate 6b, and the base plate 6b is The anchor is attached and fixed to an insert anchor or embedded anchor 6c previously installed on the outer surface of the beam of the structural body 5. On the inner surfaces of the two guide plates 6a, 6a, arc-shaped guide pieces 6d, 6e are provided so as to sandwich the inner and outer surfaces of the flange 1a of the H-shaped steel frame 1. The guide pieces 6d and 6e guide the sliding movement of the H-shaped steel frame 1 and perform a restraint for ensuring safety against falling down.

At substantially the center of the outer surface of the flange 1a of the H-shaped steel frame 1, the two guide plates 6a, 6a
The two support plates 11, 11 are fixed in parallel in the vertical direction at an interval (approximately 72mm) sufficiently smaller than the internal spacing (approximately 120mm) of the above, and are supported below the two support plates 11, 11. A shaft 12 is provided. On the other hand, the base plate 6 of the two guide plates 6a, 6a
In the position closer to b, just the two support plates 11,
11 at a position corresponding to the support shaft 12 in the middle of
Shaft 13 erected between two guide plates 6a, 6a
A receiving member 14 that rotates about the center is installed, and receives and supports the support shaft 12 while lying in a horizontal posture (FIG. 10). The receiving device 14 lying in the horizontal posture is completely positioned by the stopper 15, and is configured not to rotate any more. In other words, the suspended scaffold that has been slid up is temporarily supported by the support shaft 12 of the H-shaped steel frame 1 supported by the support 14.

On the other hand, if the support shaft 12 hits the receiving member 14 from below when the hanging scaffold slides up, the receiving member 14 rotates to the position shown by the dotted line in FIG. Not be. At the stage where the support shaft 12 is temporarily supported and supported by the receiving member 14, the vertical and horizontal slots 16 and 17 prepared at the common position of the two guide plates 6a and 6a and the two support plates 11 and 11 are provided. The permanent fixing is performed by passing the screw 18 in common.

As described above, in order to facilitate the work of setting the H-shaped steel frame 1 of the hanging scaffold suspended by the crane or the like on the preceding receiving metal piece 6, one of the guide plates 6a has a distal end side. About half, but Figure 11
As shown by a dotted line in FIG. A torsion coil spring 20 for restoring the open / close portion to a fully closed state is mounted on a shaft portion of the hinge 19. Therefore, by opening the opening / closing portion, the H-shaped steel frame 1 of the suspended scaffold suspended by a crane or the like can be easily set on the preceding receiving hardware 6 by slightly shifting the H-shaped steel frame 1 in the lateral direction.

Next, FIG. 4 shows a step of assembling the frame scaffold 4 up to the fifth layer and constructing the structure frame 5 to the fifth floor above the ground.
Then, in order to assemble the “upper half of the suspended scaffold” on the outer surface of the external scaffold 7, the H-shaped steel frame 1 is leaned upright again, and the truss structure 3 is horizontally set on the bracket 2. 3 shows a stage in which a frame scaffold 4 for three layers is assembled on the structure 3.

FIG. 5 shows that the “upper half of the suspended scaffold” assembled outside the external scaffold 7 as described above is set on the preceding receiving metal 6 of the assembled structural body 5 in advance as described above. Suspended above the "lower half of the suspended scaffold" and extended the work, the total height of the frame scaffold was eight layers, and the exterior finishing work on the second floor above the structural frame 5 started the building on the 6th floor. This shows the stage where the suspension scaffolding, which can be used for about 4 floors and has a height of 1 unit, is completed until the construction is completed.

The slide ascending type suspension scaffold has a height at which a skeleton work of a structure can be performed at an uppermost stage and an exterior finishing work can be performed at a lowermost stage. The top of the scaffold must be protruding upward at least one layer above the floor level during construction to ensure the safety of the construction. As shown in FIG. 8, the width of one unit is a convenient size (for example, about 4 to 5 m) as a scaffold for one unit (the invention according to claim 2). The hanging scaffold of the present invention is configured as an aggregate of one unit of scaffolds U, W, etc. shown on the left and right in FIG. 8 and is slid up using the H-shaped steel frame 1 in units of one unit. Accordingly, the lifting force when the slide is raised can be relatively small. As a power source for ascending, if there are cranes at the site, the cranes are suspended, and if there are no cranes, the slides are lifted using jacks.

FIG. 6 shows a stage in which the above-mentioned hanging scaffold is slid up by one floor in accordance with the progress of the skeleton construction of the structure 5 (replacement), and the skeleton construction on the seventh floor above the ground is proceeding. I have. With the progress of the skeleton construction, advance receiving hardware 6 is prepared one after another on the outer surface of the beam. It is preferable to use a tower crane or the like prepared at the site for the slide ascending in units. When the structural work of the structure is based on the prefabricated construction method using precast concrete members, the tower crane is convenient for use because the tower crane is pre-planned for mounting the precast concrete members. In FIG. 6, all external scaffolds have been dismantled and removed.

In the same manner, the construction is advanced to the top of the structure while the rehabilitation of the suspended scaffolding by unit-by-unit slide elevation, skeleton construction and external finishing construction are performed in parallel. When the construction is completed up to the top of the structure and the suspended scaffold is used up, the unit is again suspended one by one by a crane or the like, removed from the preceding receiving hardware 6, lowered to the ground, and dismantled as ground work. Originally, the unit is independently formed as a set of scaffolds in units of one unit. Therefore, it is possible to easily, quickly and safely perform the operation of pulling out one unit from the predecessor hardware 6 and lowering it on the ground.

[0026]

[Effects of the present invention] The slide climbing type suspended scaffold according to the first to fourth aspects of the present invention has a height capable of performing building work and exterior finishing work of a building in parallel, and uses existing materials and lease materials. Inexpensive, easy to manufacture, saves labor for installation, disassembly after use is easy and safe, contributes greatly to shortening the construction period, and is also effective in greatly reducing temporary construction costs .

[Brief description of the drawings]

FIG. 1 is an elevational view showing an initial stage of assembling a slide ascending suspension scaffold according to the present invention.

FIG. 2 is an elevational view showing a stage in which the assembling of the slide ascending suspension scaffold has progressed to a framework scaffold.

FIG. 3 is an elevational view showing a stage in which about the lower half of the slide ascending suspension scaffold is set on a structure body.

FIG. 4 is an elevational view showing a stage where assembly of upper and lower halves of the slide ascending type suspension scaffold is started.

FIG. 5 is an elevational view showing a stage in which assembly is completed by adding upper and lower slide ascending suspension scaffolds.

FIG. 6 is an elevational view showing a stage in which the slide ascending suspension scaffold is slid up by one floor.

FIG. 7 is an elevational view showing the structure of the slide ascending suspension scaffold of FIG. 6 in some detail.

FIG. 8 is a left side view of FIG. 7;

9 is an elevational view showing the lower structure of the slide ascending suspension scaffold of FIG. 7 in further detail.

FIG. 10 is an elevation view showing an interlocking relationship between an H-shaped steel frame and a preceding receiving metal member.

FIG. 11 is a plan view showing an interlocking relationship between an H-shaped steel frame and a preceding metal receiving member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 H-shaped steel frame 2 Bracket 3 Truss structure 4 Framework scaffold 5 Structural frame 6 Precedent hardware 1a H-shaped steel frame flange 6a Guide plate 19 Hinge

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kiyoichi Miyazaki 4-2-2, Tenjin, Chuo-ku, Fukuoka City, Fukuoka Prefecture Inside the Kyushu Branch of Takenaka Corporation (72) Inventor Noriyoshi Kamasaki 3-chome Nihonbashi, Chuo-ku, Tokyo 6-2 Asahi Equipment Co., Ltd.

Claims (4)

[Claims] 1. A vertical H-shaped frame supporting surface rigidity, a box-type truss structure installed on a horizontal bracket at a lower end of the H-shaped frame, and The scaffold is composed of a frame scaffold assembled in a plurality of stages, and a preceding receiving member previously attached to the outer surface of the structural body, the flange portion of the H-shaped steel frame is guided by the preceding receiving member on the ascending slide, and is moved to the raised position. A sliding ascending scaffold characterized by being fixed in position. 2. The assembling height of the frame scaffold is set to a height at which the skeleton work of the structure can be performed at the uppermost level, and the exterior finishing work can be performed at the lowermost level, and the width of the unit is a convenient size as one unit. 2. The lifting scaffold according to claim 1, wherein each of the units is slid up using an H-shaped steel frame. 3. The suspended scaffold is slid up by one floor at a time in units of one unit in accordance with the progress of the skeleton construction of the structure. The slide ascending type scaffold according to claim 1, wherein the scaffold is lowered to the ground and disassembled. 4. The slide ascending suspension scaffold according to claim 1, wherein the advance receiving hardware is configured such that a guide plate sandwiching a flange of the H-shaped steel frame can be freely opened and closed by a hinge.