JPH07150767A - Beam truss erecting method in building having overhead traveling crane - Google Patents

Abstract

PURPOSE:To shorten the construction period and reduce the cost in the beam truss erection of a building having an overhead traveling crane. CONSTITUTION:A traveling stage 6 serving as a steel frame erecting rack, a post-work scaffold after the steel frame erection, a protective rack allowing the vertical work, and a lifting facility foundation for the lower section work is temporarily installed on a crane girder 3 installed on precedingly erected pillar wall steel frames 1, 1' of a building having an overhead traveling crane. Various work such as the connection matching of beam trusses 7 in package erection or split erection is performed in sequence while the temporary traveling stage 6 is moved. The temporary facility is simplified, the vertical work can be performed, thus the construction period is sharply shortened, and the cost can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a beam truss in a building having an overhead traveling crane.

[0002]

2. Description of the Related Art The construction of a beam truss of a steel structure in a building having an overhead traveling crane, such as a turbine building in a power plant, has conventionally been carried out on a relatively small scale with respect to the columns and walls of the preceding construction. If the weight is easy or if it is possible to bring in a large lifting crane even if the scale is large, the lifting capacity of the crane can be increased depending on the erection for the entire span or the size. If there are circumstances that cannot be dealt with, it is common sense to rely on the split erection to temporarily receive at the temporary reception vent gantry.

Further, it is common sense to perform post-work such as ceiling finishing of the building after erection of beam trusses by constructing a total scaffold from the bottom or suspending scaffolds over the entire area.

[0004]

[Problems to be Solved by the Invention]
For safety reasons, simultaneous work directly below the beam truss during erection cannot be allowed in any of the vent installations. Therefore, there is a problem in that the production cycle is unavoidably reduced and the construction period cannot be extended. On the other hand, in post-processing such as finishing after that, it is inevitable that the scaffold from the bottom and the suspension scaffold are laid all over the area, and the cost of the temporary material is inevitable. Further, in the case of the former, there is an inconvenience that simultaneous work in the lower part is not allowed, and in the case of the latter, another means due to the occurrence of an unfinished portion for using a temporary material such as a chain of hanging materials. However, there is a problem that it is necessary to work in, and there is a problem that the construction period is prolonged and new temporary construction costs are inevitable.

The present invention has been made in view of the above-mentioned problems of the prior art. It is possible to work directly under the beam truss, even when the beam truss is being built, and to scaffold or suspend from the bottom. Providing a beam truss erection method in a building with an overhead traveling crane that can significantly reduce the scaffolding and perform post-work such as finishing after that, which can significantly shorten the construction period and cost. The purpose is to do.

[0006]

In order to achieve the above object, a beam truss erection method in a building having an overhead traveling crane according to the present invention is a pillar of a preceding erection in a building having an overhead traveling crane. The crane girder installed on the wall steel frame, steel frame erection platform, scaffolding for post-work after steel frame erection, protective pedestal that enables vertical work, traveling stage that serves as a lifting equipment base for substructure work, etc. Then, while temporarily moving the temporary traveling stage, the above-mentioned various operations such as the jointing of the beam trusses of the collective or divided construction are sequentially performed.

[0007]

[Operation] The traveling stage temporarily installed on the crane girder installed on the wall steel frame of the preceding erection is the movable steel framing gantry, the scaffolding for post-work after the steel erection, the protective gantry that enables up and down work, Since it will provide a lifting equipment base for substructure work, work directly under the beam truss being built is allowed, simultaneous vertical work is possible, and a simple scaffold is built on the stage. Therefore, post-work such as finishing after erection of beam truss can be performed without the need for scaffolding or suspension scaffolding from below. As a result, it is possible to significantly reduce the construction period and cost.

[0008]

EXAMPLES Examples will be described with reference to the drawings.
1 to 18, the column wall steel frames 1 and 1'are erected in advance using crawler cranes 2 and 2'and the crane girders 3 are installed. The crane girder 3 has a temporary traveling stage 6 having traveling carriages 4, ...
Is erected. This temporary stage 6 is, for example, a main girder 17
Is connected to the stage frame 18, and the entire surface of the scaffold 5 is laid on the upper surface. Incidentally, the main girder 17 may be replaced by a traveling crane which is permanently installed to effectively utilize the crane.
The rail that must be secured on the crane garter 3 for traveling the stage 6 may be a temporary rail or may be a rail provided for a main traveling crane.

The traveling stage 6 temporarily installed on the crane girder 3 has a steel frame erection structure for the beam truss 7 of the trailing construction, a scaffolding for post-working after the steel framing, and further vertical work. It can be used as a protective gantry that can be used as a base and as a lifting equipment base for substructure work. The beam truss 7 may be a collective erection or a divided erection.
, The crawler crane 8 or 9 is divided into three truss members 7a and 7a.
Suspending b and 7c.

While the beam truss 7 is being erected on the stage 6 while the steel frame is being erected, the joints, etc. are being provided, the area directly below the stage 6 is protected, so that an operation floor is provided as shown in FIGS. ~ The construction of the 3rd floor steel frame 10 can also be done simultaneously. 9 to 17 show this process in detail. That is, the truss beam set 7 ′ brought onto the stage 6 is received on the jack, and the main fastening is performed. 1 in the figure
Reference numeral 1 is a fall-prevention installation jig for the set 7 '(FIG. 9).

Jack down for adjusting the truss beam set 7'is performed (FIG. 10). After connecting the connecting portion 12 to the beam truss 7 of the preceding erection, the assembling of the beam truss 7 of the preceding erection is completed (FIG. 11). For the beam truss 7 which has completed the finishing, a simple scaffold (not shown) is assembled on the stage 6 to perform painting and other finishing work, and under the stage 6, the second to third floor steel frames 10 are erected ( (Fig. 12).

[0012] The stage 6 is traveled to protect the steel frame 10 constructed as described above, and the installation adjustment is performed (Fig. 13). The steps shown in FIG. 9 are performed on the stage 6 and the steel frame 10 is finally tightened (see FIG. 1).
4). The above-described process of FIG. 10 is performed on the stage 6 (FIG. 15).

The above-described process of FIG. 11 is performed on the stage 6 (FIG. 16). After repeating the above procedure, the concrete placing 13 of the stable frame is sequentially performed (Fig. 17). The lower part of the work is easier to carry out due to the accompanying lifting equipment.
The following shows an example of using the above as a lifting equipment base. That is, the rail 14 is laid on the stage 6 and the small crane 15 is run. Alternatively, the ceiling hoist crane 16 that is movable in the X and Y directions is attached to the lower surface of the stage 6.

The stage 6 may be run from one end to the other end of the building, or two stages may be run in opposite directions from the center, depending on the circumstances of the building.
Also, of course, it is disassembled and collected at the end. In the case of constructing the beam truss 7 of FIGS. 9 to 11 described above, the present invention in the case of using the overhead traveling crane having the traveling stage as the main installation has the following detailed advantages.

That is, as shown in FIGS. 19 to 28, in the beam truss division erection, the jack 19 for receiving the truss members is arranged on the temporary stage 6 (FIG. 19) to divide the truss members 7a. , 7c, 7b are brought in and joined under a predetermined degree of muffle (FIGS. 20, 21, and 2).
2). After that, the supporting force by the jack 19 is released (FIG. 23), and it is confirmed whether the truss beam set 7'has a predetermined degree of makuri.

In the jack 19, the truss beam set 7 ′ whose level has been lowered to lower the level by releasing the supporting force is newly supported again (FIG. 24), and under this state, the above-mentioned FIG. The connecting portion 12 shown in Fig. 25 is connected, and the series of steps are as shown in Figs. 25 to 27. Since there is a level difference with the truss beam set 7'which has a high degree of makuri in consideration of the descent amount after connecting the connecting part from the tip level, the brace 20 of the connecting part 12 , 20 'have different lengths and short dimensions (FIGS. 25 (a) and 25 (b)). At this level, when the connecting portion 12 of the support is connected and the supporting force is released, the tip is slightly lowered due to the load due to the connecting portion 12 connection (FIG. 26).

Further, a new load due to the connection made earlier leads to the down, and the concrete pouring 13 shown in FIG. 17 also lowers the level (FIG. 27). The mukuri is calculated and determined by calculating these gradual level-downs. However, the fastening point error absorbing ability imposed on the braces 20 and 20 'which must be settled down with the same size finally becomes loose when the joining is performed with the level difference as described above. Although it can be dealt with only by absorption in the hall, this requires re-fastening each time, which has the disadvantage of increasing the number of processes.

However, it is possible to eliminate the above disadvantages by utilizing the fact that the main girder 17 of the present invention located directly below the truss beam set 7'to be brought in or the heavy weight of the traveling crane of the present invention is used. That is, as shown in FIG. 28, when connecting the truss beam set 7 ′ to the connecting portion 12, the fastening material is taken out from the main girder 17 or the traveling crane which can be a fastening material mounting base such as the wire 21 or the jack 22 due to its large weight. Then, it is forcibly bent to match the tip level of the beam truss 7 already built, and the joint portion 12 is connected under such a state. In this case, the braces 20 and 20 'are fastened with the same size because of the same level, and refastening is not necessary, which is preferable in terms of process and quality.

[0019]

Since the present invention is constructed as described above, it has the following effects. In the prior art in which a scaffolding to be launched from the ground or a vent installation is indispensable, it is absolutely impossible to work up and down at the same time. Is remarkable.

Further, compared with the temporary receiving vent construction method having a temporary material which is cumbersome to assemble and remove, the scaffold for starting up from the ground, and the suspension scaffold construction method, (1) it is necessary to make the vent or scaffold installation place flat. However, if there are obstacles, etc., it will take complicated work because of the complicated member structure. (2) Venting or scaffolding assembly dismantling work is a work at a high place and is highly dangerous, resulting in a decrease in workability and an increase in processes. (3) When dismantling the vent, there is already an overlying structure, so it is extremely dangerous work. (4) Since the structure makes it easy to fall against horizontal forces such as wind and earthquakes, it is necessary to take measures to prevent falls with wire rope. (5) When constructing a steel frame, the scaffolding equipment cannot be completely implemented, and unstable work increases. Especially when the secondary member is installed between the vents, the workability is poor and the safety is considerably reduced. It is advantageous because there are no difficulties such as.

[Brief description of drawings]

FIG. 1 is a front view of a building manufactured by the method of the present invention.

FIG. 2 is a side view of a building according to the method of the present invention.

FIG. 3 is a plan view of a building according to the method of the present invention.

FIG. 4 is a plan view of a traveling stage in the method of the present invention.

5 is a view on arrow AA in FIG. 4. FIG.

6 is a view taken along the line BB in FIG.

FIG. 7 is a view on arrow CC in FIG.

FIG. 8 is a view taken in the direction of arrows D-D in FIG. 4.

FIG. 9 is a process drawing of the method of the present invention.

FIG. 10 is a process drawing of the method of the present invention.

FIG. 11 is a process drawing of the method of the present invention.

FIG. 12 is a process drawing of the method of the present invention.

FIG. 13 is a process drawing of the method of the present invention.

FIG. 14 is a process drawing of the method of the present invention.

FIG. 15 is a process drawing of the method of the present invention.

FIG. 16 is a process drawing of the method of the present invention.

FIG. 17 is a process drawing of the method of the present invention.

FIG. 18 is an explanatory diagram in which the traveling stage is based on a lifting equipment.

FIG. 19 is a process drawing of the truss beam set installation process of the present invention.

FIG. 20 is a process drawing of the truss beam set installation process of the present invention.

FIG. 21 is a process drawing of the truss beam set installation process of the present invention.

FIG. 22 is a process diagram for installing the truss beam set of the present invention.

FIG. 23 is a process diagram for installing the truss beam set of the present invention.

FIG. 24 is a process diagram for installing the truss beam set of the present invention.

FIG. 25 (a) is an explanatory view of a conventional truss beam set, and FIG. 25 (b) is an explanatory view of a brace size of a connecting portion.

FIG. 26 is an explanatory view of a conventional truss beam set.

FIG. 27 is an explanatory diagram of a conventional truss beam set.

FIG. 28 is an explanatory view of a joint connection specification of the present invention.

[Explanation of symbols]

 1,1 'Column wall steel 2,2' Crawler crane 3 Crane girder 4 Traveling trolley 5 Full scaffolding plate 6 Traveling stage 7 Beam truss 7a, 7b, 7c Truss member 8,9 Crawler crane 10 Steel frame 11 Fall prevention construction Tool 12 Connecting part 13 Concrete pouring 14 Rail 15 Small crane 16 Ceiling hoist crane 17 Main girder 18 Stage frame 19 Jack 20, 20 'Brace 21 Wire 22 Jack

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Kunihiko Horie 8-21-1, Ginza Ginza, Chuo-ku, Tokyo Stock company Takenaka Corporation Tokyo Main Store (72) Inventor Hitoshi Minagawa 8-21 Ginza, Chuo-ku, Tokyo No. 1 Takenaka Corporation Tokyo Main Store (72) Inventor Naoki Shimizu 8-21-1, Ginza, Chuo-ku, Tokyo Shareholder Takenaka Corporation Tokyo Main Store (72) Inventor Daisuke Fukamachi Ginza, Chuo-ku, Tokyo 8-21-1-1 Takenaka Corporation Tokyo Main Store (72) Inventor Seiyo Matsuba 8-21-1 Ginza, Chuo-ku, Tokyo Takenaka Corporation Tokyo Head Office (72) Inventor Norio Hasegawa Kanagawa 11-11 Daikokucho, Tsurumi-ku, Yokohama-shi, Tochi Electric Power Co., Inc. Yokohama Thermal Power Plant (72) Inventor Han Akira 1-3-1, Uchisaiwaicho, Chiyoda-ku, Tokyo Tokyo Electric Power Co., Inc. Inside the company (72) Inventor Kazuhide Yamauchi 2-4 Uchisaiwaicho, Chiyoda-ku, Tokyo Toden Design Co., Ltd. (72) Inventor Fumihiro Ishikawa 2-4-4 Uchisaiwaicho, Chiyoda-ku, Tokyo Todendesign Co., Ltd. (72) Inventor Noboru Nishigaki 1-13-15 Kitaotsuka, Toshima-ku, Tokyo Miyaji Construction Industry Co., Ltd.

Claims (3)

[Claims] 1. A crane girder installed on a pillar wall steel frame of a preceding building in a building having an overhead traveling crane,
A steel frame erection gantry, post-scaffolding for post-steel erection, a protection gantry that enables vertical work, a traveling stage that serves as a lifting equipment base for lower construction, etc. are temporarily installed. A method for constructing a beam truss in a building having an overhead traveling crane, characterized in that the above-mentioned various operations such as jointing a beam truss for collective or divided construction are sequentially performed while moving a traveling stage. 2. The traveling stage is constructed so as to be connected to the overhead traveling crane which is permanently installed.
Beam truss erection method in a building having the above described overhead traveling crane. 3. The truss beam set is forced to bend to the tip level of the pre-installed beam truss with the fastening material hung on the main frame or overhead traveling crane, and the joint connection is made under such a condition. The method for constructing a beam truss in a building having an overhead traveling crane according to claim 2, wherein the braces have the same dimensions.