JPH06173459A - Beam member mounting method - Google Patents

Abstract

PURPOSE:To install a beam member without causing obstruction for vehicles in traffic under the same. CONSTITUTION:Bridge piers 31 are installed in a position confronting the site where a planned building is to be constructed, and an assembly yard is installed on the side opposite the planned place for one of the piers 31, and a support gate 42 fixed with a ground anchor 43 is installed on the oversurface of the assembly yard. Through this support gate 42, a girder 11 is moved toward the mating pier 31 from upon the assembly yard, and the foremost extremity of another girder 11 to be moved next is coupled with the tail of the girder 11 using a coupling tool. The girder 11 is set on the piers 31 on both sides, and the coupling tool is removed, and the set girder is moved along the piers 31.

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 member of a construction constructed above a track, a road or the like.

[0002]

2. Description of the Related Art Conventionally, when constructing a construction on a transportation facility such as a track or a road, a large crane or the like is placed near the planned construction position to transfer the construction material. , Was building a construction.

[0003]

In the conventional construction method described above, the planned construction site is located above a transportation system such as a track or a road, and the area around the planned construction site is a building or the like. When surrounded by, it is difficult to secure a place to place a large crane. In such a situation, transportation must be closed for a certain period to construct the building.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a method of constructing a beam member that can be carried out without obstructing a transportation system passing below. To do.

[0005]

According to the present invention, bridge piers are installed at positions facing each other across a planned construction site of a building, and an assembly yard is installed on the opposite side of the planned construction site of one of the piers. A support gate fixed by a ground anchor is installed on the upper surface of the assembly yard, and the girder is moved from above the assembly yard through the support gate toward the opposite pier, and then connected to the rear end of the girder by a connecting tool. This is a method of constructing a beam member, in which the ends of the moving girders are connected to each other, the girders are installed on the bridge piers on both sides, the connecting tool is removed, and the installed girders are moved along the bridge piers. Further, the present invention is characterized in that an assembly yard is installed outside each pier, the girder is moved from each assembly yard toward the opposite pier, and each girder is connected approximately at the center of each pier. It is the method of constructing the beam member described.

[0006]

[Embodiment 1] A method of constructing a girder in a building will be described below with reference to the drawings. <A> Construction of bridge pier and work platform (FIGS. 1 and 2) Pier 31 and 32 are constructed along the track 22 on both sides of the track 22 surrounded by the building 51. This pier 31 and 32
Is formed of, for example, reinforced concrete. The height of the bridge piers 31 and 32 is set to be higher than the height of the overhead line of the train 21 which is coming and going. The support wheels 32 are installed on the upper surface of the pier 31 at extended positions of a workbench 41 described later. A work table 41 is constructed adjacent to the pier 31 using a narrow space between the buildings 51.
The workbench 41 is a place for assembling or sending out the girder 11 which is a foundation member of the building, and is constructed at the same height as the upper surface of the pier 31. A support gate 42 is provided on the upper surface of the workbench 41.
Set up. The support gate 42, as shown in FIG.
This is a part that supports the rear of the girder 11 sent out from No. 1 so as not to float. The support gate 42 has a gate shape, and is installed in a direction of opening toward the pier 32.
The ground anchor 43 is driven from the upper end surface of the support gate 42 toward the ground below to fix the support gate 42. With this ground anchor 43, it is possible to sufficiently secure the supporting strength against the floating of the girder 11. Support wheels 45 are installed on the inner surface of the support gate 42. In addition, support wheels 44 are installed on the upper surface of the workbench 41.

<B> Assembly and delivery of girder (FIG. 2) The girder 11a is assembled on the work table 41. Digit 11a
Is a steel frame member that is configured as a basis of a building to be constructed. While assembling, insert the tip of the girder 11a into the support gate 42, and move it further onto the support wheels 32 to gradually move the girder 1a.
1a is sent toward the pier 32. When the girder 11a is sent out more than half and the center of gravity of the girder 11a exceeds the bearing wheels 32,
The tip of the girder 11a faces downward. At this time, since the rear end of the girder 11a is supported from above by the support wheels 43 in the support gate 42, the girder 11a can be continuously fed horizontally. Further, since the support gate 42 is fixed by the ground anchor 43, the support gate 42 does not pull out. The girder 11b is sent out to some extent, and the girder 11b to be sent out next is assembled on the vacant work table 41. Then, the tip of the girder 11b is connected to the rear end of the girder 11a by the connecting tool 12. In this state, the girder 11a is fed until it reaches the pier 32. At this time, the rear end of the girder 11a passes through the support gate 42, but due to the weight of the connected girder 11b and the support of the girder 11b by the support gate 42, the girder 11a can be kept horizontal and continuously sent out. . The supply of the girder 11 is performed by driving the support wheels 43 or the support wheels 32 by a drive source such as a motor and applying a rotational force to the support wheels 43 or the support wheels 32. As for the feeding method, other known methods such as pushing out from behind the girder 11 with a jack may be used.

<C> Separation and movement of girder (Fig. 3) When the tip of the sent girder 11a reaches the pier 32,
The connecting tool 12 is removed to separate the girder 11a and the girder 11b. The girder 11a is moved to a predetermined position along the longitudinal direction of the piers 31 and 32. As a moving method, for example, the girder 11a can be placed on a bogie or a sliding plate installed on the upper surface of the bridge piers 31 and 32, and the girder 11a can be moved by using a hydraulic jack or winch as a drive source. If such a moving method is adopted, the sliding resistance of the girder 11a can be reduced and the girder 11a can be efficiently moved.

<D> Sending out the last girder Sequentially sending out the girders 11, connecting them, and moving them on the piers 31 and 32. When the final girder 11 is sent out, a temporary girder member having a certain weight is connected to the rear end of the final girder 11 and sent out. After sending out, the final digit 11
And disconnect the temporary girder member. As described above, after the work of constructing all the girders 11 is completed, a beam member or the like is arranged between the girders 11 to construct a building according to the purpose of use. Although the present embodiment is a method of constructing a beam member of a construction to be constructed above a railroad track of a train, when the building is not limited to a transportation line such as a railroad track or a road below the construction, And so on.

[0010]

[Embodiment 2] As shown in FIG. 4, this embodiment is a method used when the distance between the pier 31 and the pier 32 is long. A work platform 41a is installed outside the pier 31 and the outside of the pier 32 is installed. The workbench 41b is installed in the building to construct a building.
The method of erection of girders is from girders 31 and 32 to girder 11 respectively.
Girder 11a at the center of pier 31 and pier 32
And girder 11a are connected to each other, and girder 1 connected to the rear end of girder 11a
1b is separated, and the connected girder 11a is connected to the piers 31 and 32.
Move to a predetermined position along. Then, after all the girders 11 have been installed, a beam member or the like is arranged between the girders 11 to construct a building. When the distance between the pier 31 and the pier 32 is long as in the present embodiment, the girder 1 is inserted from both sides of the piers 31 and 32.
When 1 is sent out, the work of installing the girder 11 can be safely performed.

[0011]

Since the present invention is as described above, the following effects can be obtained. <A> It is possible to construct a structure above a transportation system such as a railroad or a road surrounded by buildings without hindering traffic.

<B> A beam member serving as a base member of a construction,
For example, since the girder is sent out from the assembly yard and is erected, a large space is not required for the erection work of the girder.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a construction process of a building.

FIG. 2 is an explanatory view of a step of sending out a girder.

FIG. 3 is a plan view of the step of moving the girder.

FIG. 4 is an explanatory diagram of the second embodiment.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Masayuki Okouchi 1-25-1 Nishishinjuku, Shinjuku-ku, Tokyo Taisei Corporation

Claims (2)

[Claims] 1. A bridge pier is installed at a position facing each other across a planned construction site of a building, an assembly yard is installed on the opposite side of the planned construction site of one of the piers, and a ground anchor is provided on the upper surface of the assembly yard. A support gate fixed with is installed, and a girder is sent from above the assembly yard through the support gate toward the opposing pier, and the rear end of the girder is connected by a connecting tool to the tip of the girder to be sent next. The method of erection of beam members, in which the girders are erected on the piers on both sides, the connecting tool is removed, and the erected girders are moved along the piers. 2. An assembling yard is installed outside each pier, a girder is moved from each assembling yard toward an opposing pier, and each girder is connected at substantially the center of each pier, The method for constructing a beam member according to claim 1.