JPS6062365A - Building method of suspension scaffold and hanger used therein - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to construction methods and methods for suspending scaffolding that can be used both as a scaffold for boiler construction and as a scaffold for inspecting boiler structures, etc.: Ill! Regarding "Juru Hanging L".

For example, a temporary scaffolding is required for a commercial boiler. The wall pipe 1' Once the prescribed work such as welding the furnace walls has been completed, it is necessary to remove the C field, cut the pieces with gas for structural inspection, remove the metal, and build a new scaffold for structural inspection. be.

Therefore, it takes a lot of time and effort to construct and remove the temporary scaffolding, which causes a prolonged period of ■II and an increase in M3m::IsuI-up.

The present invention is designed to be able to serve as both a scaffold for boiler construction and a scaffold for inspecting the boiler structure, in view of the above-mentioned fish watching.
The construction period, zero reduction, and scaffolding at high places were designed to reduce work and dangerous work, and to reduce construction costs.

According to the present invention, a rhinoceros enclosure mounting part is hung from a hanging fitting that is attached to a member to be lifted, and a scaffold is attached to the scaffold mounting member via a scaffold support beam. Scaffold taker 1
The lower scaffold mounting member is suspended from the scaffold mounting member after the members are inflated to a predetermined level, and the lower scaffold is attached to the lower scaffold via the scaffold support beam. Since there is no need to erect a suspended scaffold 1A and separate scaffolding for C1 welding and inspection, the construction period is shortened, dangerous work is reduced by rehanging the scaffolding, construction costs are reduced, etc. It can be obtained by trying.

Embodiments of the present invention will be described below with reference to the drawings.

First, the suspension tool A for the furnace side wall used in the hanging scaffold construction/J method of the present invention will be explained with reference to FIGS. 1 and 2.

The bracket 2 is integrally fixed to one end of the vertical guide member 1, and the bracket 2 is fixed to one end of the vertical guide member 1.・It'll l'' A is pivoted through the pin 3 whose axis extends in the horizontal direction, and the pin 3 is attached to another racket 1 to 5 fixed to the lower end of the bracket 1-2. The bottle holes 6 are parallel to each other and placed near the connecting part of the racket 2 and the guard part 4AI.

Downward l\direction (not it! i diagonal t!
- 7 are fixed in the shape of a square, and C tension (49 is pivotally connected to the guide member 1 through a pin 8 arranged parallel to the bottle 3 marked 6rr) is applied to the 1 rack l. !When the II material 10 is put together, the sliding material 10 is applied with force, and the ID member 1 is
Attach a stopper 4G to the guide part 4A1 so that it does not fall off, and attach it to the ribs 10 and 1 in a flat manner! n-Cn-C A bracket 1-11 protruding in the same direction as the wall 1 is fixed, and a flat (j-shaped pin 1) is attached to the bracket 1-11 with the pin 8.
A compression material 13 is pivotally connected through a pin 12, and the tip of the compression material 13 and the tip of the tension material 9 are connected to a pin 1 parallel to the pins 8 and 12.
A pin 16, which faces in a direction intersecting with the pin 14, is attached to the bracket +-1S, which is pivoted to J and is fixed to the joint between the tension member 9 and the compression member 13. An arm 17 whose length f direction is parallel to the pin 14 and is rotatable in a vertical plane is pivotally mounted, and a head parallel to the pin 14 ('J pin shape) is attached to both ends of the arm 11. Retaining member 18
1, the scaffolding attachment member 19 can be suspended from the engagement member 18.

A hanging tool holder 22 is mounted on the beam 21 welded to the ceiling panel 20. A pin 24 for fixing the wire lobe 23 is provided on the hanging tool holder 22, and the A pulley 26 parallel to the pulley 4 is pivotally mounted, and a hole is provided in the lower part of the hanging tool holder 22 in parallel with the pin 25. When hoisting a scaffold, the bracket 5 of the lifting tool Δ is attached via the pin 27. Insert pin 2 into the hole in the hanging tool holder 22.
When the scaffolding is removed, a wire 6-123 with one end tied to a winch drum or the like is wound around the pulleys 2G and 4 (the other end can be connected to the pin 2+1 with a wire 6-123). do.

In the case of scaffold lifting +v1 or removal I1.7 l1iJ, the lifting tool A is used to lower the sliding material 10 down to the lower end of the guide member 1, as shown in Fig.'1. -Tsuba 4G
Once in contact with +A 9 °? When listening to the shape, the compressed material 13 protrudes in the horizontal direction. Compression + AI3 is in an inverted V-shaped state where the bottle 12 side is lower than the pin 14 side, so the sliding gap 10 A force is applied in the opposite direction, so that the compressive material 13 and the tensile material 9 are folded during use. 2.1: The q rib 10 is moved to the guide part (41) by 18 to the L limit, and the tension member 9
and le cotton 4A13 is the umbrella J, folded into the sea urchin, arm 1
7 has been rotated and is located in the lj ii'j state.

Next, the hanging fixture A' for the rear wall of the furnace used for the erection of the hanging scaffold of the present invention, lJ FM, LL-, will be explained with reference to Fig. 3.The basic structure is the same for the hanging L1△. - Yes, the orientation of the tension member 9, compression member 13, arm 17, and each bin that pivotally connects them is shifted by 90 degrees from that shown in FIG.

Furthermore, when explaining the suspension tool A" used for the nose part (slanted part) used in the present invention with reference to FIGS. 4 and 5, the structure is exactly the same as the suspension tool Δ' shown in FIG. 1. However, the hanging tool holder 22 is attached to the beam 2 installed at the nose 28, not the beam installed at the person 11 panel.
9, the brackets 1 and 2 of the hanging tool A II interfere with the nose 28, and therefore the bracket 5 cannot be directly hung on the hanging tool holder 22. Therefore, wooden hanging tool A
In the case of JL, a rod 30 is suspended from the hanging tool holder 22 via a bottle 27, and a bracket 5 is suspended from the lower end of the rod 30 via a bottle 31.

In addition, the same reference numerals are given to the same parts in FIGS. 1 to 5.

Next, details of the scaffold attachment member 19 and the scaffold suspended from the above-mentioned hanging tools Δ, ΔJ, and A/l will be explained with reference to FIG. 6 and FIG. 7 -b.

Installing scaffolding? i111J 19, for example, adds flat steel I L
It is manufactured by U and has mounting holes 33 at appropriate intervals in the vertical direction. The lower side of the hole 33 has a guard C from the diameter of these heads so that the head of the engagement part 15 of the scaffolding support beam 34 can be inserted, and the L side has a hole 33 that allows the head of the engagement part 15 of the scaffolding support beam 34 to enter. In order to prevent the heads of the retaining parts and the connecting bins 35 from becoming loose, the connecting parts of the scaffold support beams 34 and the connecting bins 35 are made with a diameter 1' smaller than the diameter of these heads.
It costs 1 yen a little more than the engaging part. Further, a plurality of hooks 3G are provided on the scaffold 37, and the hooks 3G engage with the scaffold support beams 34. ”: The sea urchin is turning. Furthermore, the handrail pipe 38 is attached to the scaffolding member 4 member 19 via the clamp 39 in the same way as the scaffold support beam 34.

Next, the method for constructing a suspended scaffold will be explained with reference to Figures 8 (a), (b), and (c).

Hanging besa ceiling panel 20 II! 11 placed in a predetermined position and connected to the ceiling panel 20 with the 81' Take it to the beam 21 (=l Gb, hanging pulley 711J Tsuk 4
0J: Raise the ceiling panel 20 from the ground to a predetermined height, open the hanging tools A and A', and drill the pin holes of the brackets 5 of the hanging tools A and A' into the hanging tool holder 22. Insert the bottle 27 into the drilled hole and the bottle hole 6 according to the hole and hang it RA, A.
' is hung on the hanging tool holder 22, and the mounting holes 33 at the uppermost end of the scaffolding attachment member 19 are fitted into the retaining members 18 on both sides of the arms 17 of the hanging tools A and A'. The scaffold attachment member 1 is suspended from the arms 11 of the hanging tools A and A'.
Fit the scaffold support beam 34 into the required position of the hole 33 of 9, engage the hook 36 of the scaffold 37 to the scaffold support beam 34, and attach the scaffold 37 to the scaffold support beam 34. Part 1
90 Scaffolding 37 attachment position 4: Fit the clamp 39 into the hole 33 above b, and attach the f sliding pipe 38 to the clamp 39 (see Figs. 6, 7, and 8 (a)).

The scaffold 37 and the handle 38 are installed not only directly below the hanging tools A and A' but also between the hanging tools Δ and Δ, between A' and A', and between A and A'. and f1 38 are arranged in an endless manner.

Scaffolding 37 and handrail pipe 3 are attached to the topmost scaffolding 4 member 19.
8 installed [notara, H'l middle block for lifting] [1 piece 40 allows ceiling panel 20, hanging tools A, A',! Lift the upper scaffolding attachment member Δ19, the scaffolding 37, and the handrail pipe 38 to a predetermined height. (=Hang the J member 19, and in the same way as above, attach the second stage scaffolding attachment part vU19 to the scaffold support beam 34, foot J411: S7,
Ding IB! Installing the Hyno 38 etc. (see Figure 8 <a>)!
s,>.

The scaffold support beam 34 is attached to the second stage scaffold attachment part 4419.

When the scaffolding 37 and the handrail pie 138 are lifted, hoist them up m
Kl car bar ``J Tsuk 40'', further hoist 11Δ, A' to a predetermined height, and as above (, Scaffold mounting member 19, scaffold support beam 34, scaffold 371 1; 11 perve 38 Attach p and p. Then, attach the scaffolding attachment part '4A19, the foot jjA support beam 34, and the scaffolding 3 to the lower part of the hanging tools A and A'.
7, 1"! / Hanging 1 from F1 (J
Connect the hanging rod 42, and then hang it to the hanging rod 42 of the C1 mangetsu bunru 20 and the hanging scaffolding T, and attach the topmost foot holder F.
=J member 19, scaffold support beam 34, scaffold 37, handrail by 13
8 installation is completed, and the hanging scaffold x 1 is completed (8th
(See figure (c)).

Once the hanging scaffold x 1 is completed by hanging the ceiling panel 20, each pipe wall 43, 44, 45 is hung as shown in Fig. 6 using Namegawa blocks for hanging, and the worker stands on the scaffold 31. Riding on it and doing welding work etc.

Next, the tmh method of the suspended scaffolding at the nose 28 part will be explained with reference to FIG. 9. Attach the required number of hanging tool holders 22 to the installed beam 29 (ql, J). ,] suspend the shell Δ'' from the hanging tool holder 22 via the rod 30, hang the scaffolding attachment members 19 from the engaging members 18 on both sides of the arm 17 of the hanging tool Δ'', and attach the scaffolding (=1 member). Take the scaffolding support beam 34 to 19] [Purudo and the scaffolding support!
Attach the scaffold 31 to the 234 via the hook 36, and attach the handrail pipe 38 above the lifting position of the scaffold 31 via the clamp 39. J, Re-nose 28 part, hanging tool A'', top tier scaffold mounting part 19, scaffold 37, etc., are lowered to the specified height, and then the second tier scaffold 31 is removed + A19, scaffold 37,
Take the handrail vibrator 38 etc. (jl IJ, nose 28 again
1, exit A LL, etc., and remove the scaffolding member 19, scaffolding 37, handrail pipe 138, etc. in sequence according to the procedure described above.Then, the nose 28 part is suspended to a predetermined height. Scaffolding installation part + A19, scaffolding 31
, remove the handrail bar 38, etc. (=t f), then suspend the scaffolding X.

Construction has been completed, and work L1 can be performed such as welding the pipes that will be installed below the nose 28 on the suspended scaffold x2.

In addition, since there is a staircase between the suspended scaffold X+, Xl's 1"υ scaffold and the upper scaffold at the part U<i" in the diagram, the welding part! There are 4 branches FO in the field +a.

Has the prescribed work such as welding work been completed? Also in the case of L'U witness inspection 9j, the suspended scaffolding X1. Perform a visual inspection of the welded parts of the 8 pipes using X and ·.

When dismantling a suspended structure, follow the steps below. That is, in the case of hanging tools A and A', first let out from the unwidth lζW A? - rope 23 to pulley 26
, 4, fix the end to the pin 24, pull out the pin 27, attach it to the placket 1 of tools A and A', remove 5 from the hanging tool boulder 22, and let out wire A7-rope 23. . Therefore, the hanging tools A and Δ' are lowered, and the entire suspended scaffolding X1 is lowered, and the lowest scaffolding 37 approaches the ground. Therefore, a worker removed and removed the lowest handrail pipe 38, scaffold 37, scaffold support beam 34, and scaffold attachment member 19, and
- Let out the rope 23 to further lower the suspended scaffolding
, remove and remove the scaffolding attachment member 19, and then remove it again.
Let out the rope 23 to lower the suspended scaffold x 1, and then follow the same procedure as above to attach the handrail pipe 38, scaffold 37, and scaffold support beam 3.
4. Remove the scaffold mounting part 19. Then, when the suspended scaffold x 1 descends to the lowest position, remove the bottle 24 and attach the wire rope 2.
3 from the pulley 4, fold up the hanging tools A and A', and transport the lower man ball etc. to the outside.

When dismantling 2 suspended scaffolds, connect the wire rope 23 to the pulleys 26 and 4, hang the pins 31 once, and then attach the brackets 1 to 5J: Hollow out and use the foot J''AX+. In the same manner as in the case (1) When performing periodic inspections (hoi'1'2), bring the hanging tools A, A', and A'' into the man-ball J and reboiler, and place them in the designated positions on the Otsuki panel 20 and nose 28. Drill a hole in advance and attach the pulley 26 and 4 to the C hanging tool holder 22.
111・GJ for Rono 23, hang the hanging tools A, A', A'', and the hanging tools A, A'.

While hoisting the suspended scaffolds 11゛1 to A'' in the same way as above,
Build a specified scaffold, fix it to the hanging tool holder 22 by inserting the bottle 27 into the bottle hole 6 of the bracket 5 of hanging tools A and A', dry 1n of hanging scaffolding C, and remove the scaffold of the hanging scaffold. Riding on the train, he performed various works 5'' (one thing or two).

It should be noted that the present invention is not limited to the embodiments described above, and that various changes may be made without departing from the gist of the present invention.

According to the hanging scaffold construction method of the present invention and the hanging tool that uses both the hanging method, various excellent effects such as fertilization can be achieved.

(D) Since the scaffolding is attached to a hanging tool, welding work on the furnace wall can be carried out on the same suspended scaffolding as well as inspections attended by government offices, and it is necessary to replace the scaffolding used for welding work once assembled with the scaffolding used for inspection. There is no.

Therefore, dangerous recombination depth at high places is eliminated, construction period is shortened,
It is possible to reduce construction costs.

<ff) Since the hanging tool is foldable, it can be easily carried into and out of the boiler, improving work efficiency. In addition, transportability, handling and transportation efficiency are improved, and transportation costs can be reduced.

′

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the hanging tool used in the method of the present invention, Fig. 2 is an explanatory diagram showing the hanging tool in Fig. 1 in a folded state, and Fig. 3 is an explanatory diagram of the hanging tool used in the method of the present invention. Explanatory diagram of the hanging tool used on a surface that is 90 degrees different from the surface on which the hanging tool is used, Part 4
The figure is an explanatory diagram of the hanging tool used for the nose part in the method of the present invention, Figure 5 is a view taken along the v-v direction of Figure 4, and Figure 6 is an overall perspective view of the hanging scaffold used in the method of the present invention. 7 is an enlarged perspective view of the scaffold attachment member of the suspended scaffold shown in FIG. 6, and FIG.
Figures (A), (B), and (C) are detailed explanatory diagrams of the present invention when constructing a suspended scaffold shown in Figure 6, and Figure 9 is a detailed explanatory diagram of the present invention when constructing a suspended scaffold for the nose section. It is an explanatory diagram. In the figure, 1 is a guide member, 4 is a pulley, 9 is a tension member, 10 is a sliding member, 13 is a compression member, 17 is an arm, 18 is an engaging portion,
19 is a scaffold mounting member, 20I is a ceiling panel, 21 is a beam, 22 is a hanging tool holder, 26 is a pulley, 28 is a nose,
30 is a rod, 34 is a scaffold support beam, 36 is a hook, 31 is a scaffold, 38 is a handrail pipe, A, A'. ALL indicates a hanging tool, and X+ and X2 indicate a hanging scaffolding device. 3rd m 22 8th (a) (b) J / 37 37 Figure (c) /

Claims (1)

[Scope of Claims] 1) Part to be hung) After attaching the scaffold via the scaffold support beam to the vertically extending scaffold attachment member suspended from 4 via the necessary hanging tools, the hanging area is attached. Avoid raising the scaffold attachment member and the scaffold by a predetermined amount by raising the member to be lifted by a predetermined amount,
A method for constructing a suspended scaffold, characterized in that a scaffold mounting member of the F stage is suspended from the °F part of the scaffold mounting member, and at the same time, a lower stage scaffold is attached to the lower stage scaffolding member via a scaffold support beam. . 2) A pair of first members that can swing up and down are pivotally mounted above a vertical member that can be suspended from the member to be hung, so that they form a substantially rectangular shape when asked. At the same time, there is a metal fitting fitted to the front vertical part so that it can slide up and down.
The second member is pivotally mounted so as to be able to swing up and down so that it takes on a substantially U-shape when opened, and the tip of the second member is connected to the tip of the first part H by 4.41 squares or , of the first member and the second member (in the vicinity of the zero part. In plan view, the first part (4 and the second member i-")
It is characterized by the fact that the arms extending in the intersecting directions are pivotally attached to the top and that engaging parts are installed at both ends of the arms so that the shrine can be hung. Hanging used for construction of suspended scaffolding [!,.