JPH0882088A - Connecting scaffold structure - Google Patents

Abstract

PURPOSE: To construct a passage between a temporary scaffold and a building frame by using an integrated scaffold structure. CONSTITUTION: A beam frame 10 is mounted on the side of a temporary scaffold 2 in such a way that the height of a passage inside the temporary scaffold 2 is the same as the height of an upper-chord horizontal member 12, the temporary scaffolding 2 being constructed along and at a predetermined distance to a building frame. An overhanging beam 21 secured and supported on the upper-chord horizontal member 12 of the beam frame 10 at its root, extended toward the building frame, and supported on a diagonal member 22 is provided, and a bracket frame 20 forming an overhanging floor 25 by the laying of flooring 23 in a portion surrounded by the overhanging beam 21 is provided, and a ramp frame 30 leading to the building frame is freely removably connected to one end of the overhanging floor 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crossover scaffolding structure, and more particularly to a crossover scaffolding structure erected to go back and forth between a frame structure of a building and a temporary scaffolding.

[0002]

2. Description of the Related Art Usually, a temporary scaffold provided along an outer wall surface of a building under construction is assembled with a predetermined distance from the outer wall surface of the building. Therefore, a crossing scaffold is assembled between the temporary scaffold and the skeleton in order to move up and down the temporary scaffold and move back and forth with the skeleton part at a predetermined height. Conventionally, frame scaffolds are often used as temporary scaffolds of this type. Then, the crossing scaffold bridges the beam member from the frame scaffolding to the frame,
It was constructed by assembling the building and arms at predetermined intervals on the body side via clamps and other tight fittings, and laying scaffolding boards. In this case, the beam members, the building (column members), and the arms are usually
It is designed to use a combination of scaffolding steel pipes of a predetermined length. Further, the frame structure is assembled by tightly connecting the intersections of the steel pipes for scaffolding with a clamp or the like, and a scaffold plate is laid on the frame structure part to form a crossover scaffold. The steel pipe used for scaffolding steel is JIS
Three types of general structural carbon steel pipe of G 3444 (STK5
00) and hereinafter referred to as a single tube.

FIG. 10 shows an example of a conventional crossing scaffold provided between a frame scaffold and a building roof slab. As shown in the figure, the crossing scaffold 50 is arranged at a predetermined interval on the scaffolding beam member 54 that is extended from the cloth frame 53 portion of the frame scaffolding 52 assembled along the skeleton body 51 and the skeleton slab 51a. A single pipe column 56 erected on the jack base 55 is tightly connected with a clamp 57 to form a frame structure. A scaffolding board 59 is laid side by side on the arms 58 that are tightly connected to the single tube column 56 along the beam direction, and a projecting floor 60 and a hoistway (slope) 61 with a predetermined slope are constructed. It should be noted that the overhanging floor 60 and the slope 61 also need to be provided with a handrail 62 to prevent a fall. Therefore, a single pipe having a length matching the column interval is used as the handrail 62.

[0004]

However, in the above-mentioned crossover scaffolding, single pipes, clamps and scaffolding boards having suitable lengths and sizes must be individually procured and assembled at the site, and the installation and dismantling are required. It takes a lot of work time to work. In addition, since the slope part is an integral structure with the pillar that receives the scaffolding, it is not necessary to disassemble a part of the crossing scaffold each time in order to change the installation position of the slope in waterproofing work of the rooftop slab. There is a problem that it should not.

Therefore, an object of the present invention is to solve the problems of the above-mentioned conventional techniques and to provide a crossover scaffolding structure which can be integrally attached to an already assembled frame scaffold to provide a scaffold. .

[0006]

In order to achieve the above object, the present invention is directed to a height of a passage in a temporary scaffold constructed along a building frame with a predetermined distance and a height of an upper chord cross member position. And a beam frame attached to the side part of the temporary scaffold so that they substantially coincide with each other, and a root portion is fixedly supported by an upper chord cross member of the beam frame and extended toward the building frame and supported by a diagonal member. A projecting beam and a bracket frame in which a projecting floor is formed by a floor material laid so as to be surrounded by the projecting beam part, and a hoistway frame with the building frame is detachably attached to one end of the projecting floor. It is characterized by being connected.

The hoistway frame is supported by a retractable pedestal erected on the slab surface of the building frame, the root of which is fixedly supported by the pedestal and is extended to face the bracket frame. A balcony frame with a balcony floor formed by the floor material laid so as to be surrounded by the overhanging beam is connected to the end of the overhanging floor, and the hoistway frame with the building frame is removable at one end of the balcony frame It is preferable to be connected to.

Further, it is supported by a retractable pedestal erected on the slab surface of the building frame, the root portion is fixedly supported by the pedestal, and is extended to face the elevator gate for construction work. It is preferable that an elevator boarding / alighting platform frame in which an elevator boarding / alighting floor is formed by a floor material laid so as to be surrounded by the projecting beam portion is connected to an end portion of the projecting floor.

[0009] The hoistway frame with the building frame is detachably connected to one end of the overhanging floor to which the elevator frame for construction work is connected, or with the building frame via the balcony frame. It is preferable that the hoistway frame is detachably connected.

[0010]

According to the present invention, the temporary scaffold of the temporary scaffold is constructed so that the height of the passage in the temporary scaffold constructed along the building frame and spaced apart from each other is substantially equal to the height of the upper chord cross member position. A beam frame is attached to the side part, and a root part is fixedly supported by an upper chord cross member of the beam frame, and a projecting beam extending toward the building frame and supported by a diagonal member is provided and surrounded by the projecting beam portion. A bracket frame in which a floor material is laid to form a projecting floor by laying a floor material in the opened part, and the hoistway frame with the building frame is detachably connected to one end of the projecting floor, thereby providing a plurality of conventional The crossing scaffold that has been assembled by combining the members can be integrally configured, and therefore, the scaffolding structure can be constructed easily and quickly, and can be easily separated from the body side.

At this time, a floor material is laid on the extensible column standing on the slab surface of the building frame so as to be surrounded by the projecting beam portion extending toward the bracket frame to form a balcony floor. By connecting the balcony frame to the end of the overhanging floor and detachably connecting the hoistway frame with the building frame to one end of the balcony frame, the overhanging floor can be easily expanded, and the hoistway frame You can freely set and move the place to place.

An elevator which is used as an elevator floor by laying a floor material around an extensible column which is erected on the slab surface of the building frame so as to be surrounded by a projecting beam portion extending toward the elevator gate for construction work. By forming a boarding / alighting scaffolding frame and connecting the elevator boarding / alighting board frame to the end portion of the overhanging floor, it is possible to easily construct an elevator boarding / alighting scaffold for construction that matches the dimensions of the elevator.

A hoistway frame with the building frame is detachably connected to one end of an overhanging floor on which the boarding / alighting platform is formed,
Alternatively, by detachably connecting the hoistway frame with the building frame to one end of the overhanging floor via the balcony frame, it is possible to more easily realize the movement to and from the frame, and the hoistway frame can be easily moved. You can do it.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a crossing scaffold structure according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a crossover scaffold 1 according to the present invention mounted on a side surface of a frame scaffold. The frame scaffold 2 is shown in phantom for simplification of the drawing. The crossover scaffold 1 is composed of a beam frame 10 and a bracket frame 20, and in this embodiment, the bracket frame 20 is integrally attached to the center span position of the beam frame 10 having three spans. Both the beam frame 10 and the bracket frame 20 are made of a single pipe similar to the material used for the pillars and the horizontal members of the building frame of the ordinary frame scaffold 2 and have an outer diameter of 42.7 mm. There is. For this reason, a ready-made clamp 4 or the like can be used for binding to the framework scaffold 2.

Further, in this embodiment, in addition to using the ready-made clamp 4 for fixing the beam frame 10 to the frame scaffold 2, the beam receiving metal fitting 3 is used. The beam receiving part 3 has a substantially U-shaped beam receiving portion, and the frame scaffold 2 on which the beam frame 10 is installed.
It is fixed to a part of the cloth frame (not shown) by a set screw or the like, and a part of the lower chord cross member 11 of the beam frame 10 is supported by the U-shaped part. At this time, the upper chord cross members 12 are attached to the side surfaces of the frame scaffold 2 so that the height of the upper chord cross member 12 is substantially equal to the installation height of the passage laid in the cloth frame part of the frame scaffold 2.
It is designed to be fixed by the or clamp 4.

On the other hand, the bracket frame 20 is composed of a predetermined overhanging beam 21 and a diagonal member 22 for receiving the overhanging beam 21, and a detachable flooring 23 is laid on an overhanging floor 25 surrounded by the overhanging beam 21. . Expanded metal is used for this floor material 23 for weight reduction,
A striped steel plate provided with anti-slip, punching metal, or the like may be used. Furthermore, the upper chord cross member 12 and the overhanging beam 21
The sheath tubes 13 and 24 are erected at the respective intersections and corners. The sheath tubes 13 and 24 are adapted to be used as base tubes for handrail members. In this embodiment, the handrail unit 14 is used as the handrail member. The handrail unit 14 is L-shaped in plan view and is foldable by the intermediate hinge portion 14a. For this reason, when the handrail is provided, the leg portion of the handrail unit 14 is placed at a predetermined position in the sheath tube 1.
The connection portion is fixed by a known fixing pin such as a lock pin by simply inserting the handrail into the wirings 3 and 24, and the handrail of the bent portion for two spans can be easily installed. The hinge part 1
If the handrail unit 14 can be disassembled by 4a, one of the upper chord cross member 12 or the overhanging beam 21 can be provided.
It is also possible to provide handrails only on the span.

A staircase frame 30 is attached to one end of the overhanging floor 25. As shown in FIG. 2, the staircase frame 30 is installed so as to descend to the skeleton slab 51a with a predetermined slope. To attach the staircase frame 30 to the overhanging floor 25, the locking metal fitting 3 provided at the upper end of the staircase frame 30 is used.
1 and lock claw 3 formed at the end of the locking fitting 31
2 is sure to be performed. The lock claw 32 has a structure similar to that of a normal lock claw provided in a grip of a cloth frame used for the framework scaffold 2. As the locking operation, the locking metal fitting 31 of the staircase frame 30 is locked to the beam member 21b of the overhanging floor 25, and at the same time, the locking claw 3
2 slides in the direction of arrow A to grip the beam 21b, and the lock mechanism operates. As a result, it is possible to reliably prevent the locking metal fitting 31 of the staircase frame 30 connected to the overhanging floor 25 from coming off due to vibration or the like during passage. This staircase frame 30 also has a sheath tube 33 formed at a predetermined position so that a handrail unit 34 having a predetermined shape can be inserted and used. In FIG. 1, only the handrail unit 34 on one side is shown for the sake of explanation.

By the way, as shown in FIG. 2, depending on the rising height of the parapet 51b of the body 51, the crossover scaffold 1
The installation height of the overhanging floor 25 is also different. For this reason, it is preferable to use the staircase frame 30 having a span L such that the staircase slope becomes appropriate according to the height thereof. In addition,
The slope of the tread surface of the stair tread 35 can be adjusted so that it can be kept horizontal according to the slope of the stairs. In this case, it is preferable to use a handrail having a structure that can be changed according to the inclination of the floor surface. Further, when the slope is gentle, it is also preferable to use the slope frame 36 as shown in FIG. 3 instead of the staircase frame 30. The slope frame 36 comprises a steel pipe frame 36a and an expanded metal floor plate 37 attached thereto. It goes without saying that various kinds of plate materials such as striped steel plates can be used as the floor plate material 37 as long as it is a material that does not slip on the feet when moving up and down. Further, rod-shaped non-slip members such as angle members (angle steel) may be fixed on the floor plate material 37 at predetermined intervals to prevent slipping.

FIG. 5 shows a modification of the crossover scaffold 1 shown in FIG. In this crossover scaffold 1, the bracket frame 20 is foldable with respect to the beam frame 10. That is, the hinge portion 21a is formed at the root of the projecting beam 21 of the bracket frame 20, and the joint 22a between the diagonal member 22 and the projecting beam 21 is also hinge-coupled to connect the lower ends 22b of the two diagonal members 22. An engaging metal fitting 26 is provided on the beam member 22d so as to engage with the lower chord cross member 11. Since the bracket frame 20 is thus foldable, there is an advantage that the crossing scaffold 1 can be carried in a compact form when it is carried and can be put together with each member of the frame scaffold 2. is there.

FIGS. 6 and 7 show another embodiment in which a balcony frame is connected to the above-mentioned crossing scaffold 1 and the direction of the hoistway frame is changed. The balcony frame 40 shown in the figure includes an extendable pedestal portion 41, a balcony floor 42 integrally connected to the pedestal portion 41, and a diagonal member 43 supporting the balcony floor 42. There is. Of these, the pedestal portion 41 is made of a steel pipe column having a double-tube structure, and
The height of the balcony floor 42 can be adjusted by expanding and contracting 4, and the height is made to match the overhanging floor 25 of the crossing scaffold 1. It should be noted that the jack base 45 is shown in the same drawing for adjusting the unsteadiness of the slab.
5 may be used if necessary. The height of the inner cylindrical column 44 is adjusted by tightening the fixing bolt B.

As an application example of this balcony frame 40,
As shown in FIG. 7, a balcony portion of an apartment house in which a stair frame or the like cannot be extended from the crossing scaffold 1 to the skeleton 51 is exemplified. Such a body balcony 51
In B, the hoistway frame cannot be provided in a straight line from the crossing scaffold 1. Therefore, if the balcony frame 40 is installed so as to have a height substantially equal to that of the overhanging floor 25, the staircase frame 30 and the slope frame 36 can be attached with the elevating path bent from the balcony frame 40 at a right angle.

FIG. 8 is an embodiment showing an example in which the crossover scaffold 1 is applied as a boarding / alighting scaffold of an elevator for long span construction. The long-span construction elevator E has been used for construction work of high-rise buildings because it can load and transport long materials, but the long-span construction elevator E is used as part of the frame scaffolding 2. When incorporated, it is necessary to enable the elevator boarding / alighting from the frame scaffold 2 and the skeleton 51 on a predetermined floor. Therefore, in this elevator boarding / alighting platform, the crossing scaffolding 1 is attached to the frame scaffolding 2 assembled on the side of the elevator, and the elevator boarding / alighting platform 45 is further connected to the crossing scaffolding 1. As shown in FIG. 8, the elevator boarding / alighting platform 45 has a structure in which the balcony frame 40 has a multi-span structure, and this span is set according to the carrier length of the long-span construction elevator E being used. And scaffolding 1
A boarding / alighting floor 49 continuous with the overhanging floor 25 is constructed. In addition, in order to prevent the balcony frame 40 from falling toward the opening side where the elevator moves up and down, it is preferable that a retractable support member (not shown) exerts a reaction force on the lower surface of the upper balcony.

An opening / closing gate 46 is provided on the opening / closing side of the elevator boarding / alighting floor 49 where the long-span construction elevator E moves up and down. The opening / closing gate 46 is provided to prevent the elevator E from falling from the opening when the elevator E is not stopped. Therefore, the elevator E is opened only when it is stopped at the elevator boarding / alighting platform 45. At this time, in order to connect the elevator boarding / alighting platform 45 and the skeleton 51 to each other, the above-mentioned balcony frame 40 is provided at one end of the crossing scaffold 1 as shown in FIG. 9, and the stair frame 30 and the like are installed from the balcony frame 40. May be. By providing the crossover scaffolding 1 on both sides of the elevator boarding / alighting platform 45 as shown in the figure, the elevator boarding / alighting floor 49 to the frame scaffolding 2, the skeleton 5 as shown by the dashed arrow lines in FIG.
It is possible to secure a passage to the 1st side.

[0024]

As is apparent from the above description, according to the first aspect of the present invention, the crossover scaffolding for going back and forth from the temporary scaffolding can be integrally configured, which is inexpensive and easy to assemble. In addition, since the hoistway can be easily re-arranged, the effect on the skeleton work can be minimized.

According to the second aspect of the present invention, it is possible to install the hoistway in a predetermined direction, and it is possible to obtain a wide application site for the crossover scaffold.

According to the third aspect of the present invention, there is an effect that an elevator boarding / alighting platform can be easily constructed, and an application range of the crossing platform can be widened.

According to the invention of claim 4 or claim 5, the hoistway that goes back and forth between the elevator boarding / alighting scaffolding and the skeleton slab can be constructed detachably with respect to the scaffolding, and the influence of the skeleton part on construction and the like can be minimized. There is an effect that can be.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a crossing scaffold structure according to the present invention.

FIG. 2 is a front view showing an example of an installation mode of the crossing scaffold structure shown in FIG.

FIG. 3 is a perspective view showing a slope frame as an example of a hoistway frame.

FIG. 4 is a partially enlarged view showing an example of a metal fitting for a hoistway frame.

FIG. 5 is a perspective view showing a modified example of the crossing scaffold structure.

FIG. 6 is a perspective view showing a scaffolding structure in which balcony frames are connected as another embodiment of the crossing scaffolding structure.

7 is a front view showing an example of an installation mode of the crossing scaffold structure shown in FIG.

FIG. 8 is a perspective view showing a scaffolding structure in which elevator boarding / alighting scaffolds are connected as another example of the crossing scaffolding structure.

9 is a plan view showing an example of an installation mode of the crossing scaffold structure shown in FIG. 8. FIG.

FIG. 10 is a front view showing an example of a conventional crossing scaffold structure.

[Explanation of symbols]

 1 Crossing scaffolding structure 3 Beam receiving bracket 10 Beam frame 14 Handrail unit 20 Bracket frame 21 Overhanging beam 22 Slanting material 23 Floor material 25 Overhanging floor 30 Stair frame 31 Locking metal fitting 36 Slope frame 40 Balcony frame 45 Elevating platform

Claims (5)

[Claims] 1. A temporary scaffold mounted along a side of the building so that the height of a passage in the temporary scaffold constructed at a predetermined distance along the building frame and the height of the upper chord cross member position are substantially the same. Beam frame, a root portion fixedly supported by an upper chord cross member of the beam frame, extending toward the building frame and supported by diagonal members, and laid so as to be surrounded by the projecting beam portion. And a bracket frame in which an overhanging floor is formed by the above-mentioned floor material, and a hoistway frame with the building frame is detachably connected to one end of the overhanging floor. 2. A projecting beam which is supported by an extensible pedestal standing upright on the slab surface of the building frame, a root portion of which is fixedly supported by the pedestal, and which is extended to face the bracket frame. A balcony frame having a balcony floor formed by a floor material laid so as to be surrounded by a portion is connected to an end of the overhanging floor, and a hoistway frame with the building frame is detachably connected to one end of the balcony frame. The crossover scaffold structure according to claim 1, wherein the crossover scaffold structure is formed. 3. A projecting beam which is supported by an extendable pedestal standing upright on a slab surface of the building frame, a root of which is fixedly supported by the pedestal, and which is extended to face an elevator boarding / alighting gate. 3. An elevator boarding / alighting scaffolding frame in which an elevator boarding / alighting floor is formed by a floor material laid so as to be surrounded by parts is connected to an end of the overhanging floor.
The described scaffolding structure. 4. The crossing scaffold structure according to claim 3, wherein a hoistway frame with the building frame is detachably connected to one end of an overhanging floor to which the elevator boarding / alighting platform is connected. 5. The hoistway frame with the building frame is detachably connected to one end of an overhanging floor to which the elevator boarding / alighting platform is connected, via the balcony frame. Migratory scaffolding structure.