JP2002227423A - Building repairing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a building repairing method which allows mounting of a steel frame at an arbitrary location of a skeleton, in a narrow space in a building or the like, and facilitates accurate positioning of the steel frame. SOLUTION: According to the building repairing method for earthquake proofing, which is carried out by mounting the steel frame 1 at a predetermined location in the existing building, the steel frame 1 is moved to a location near the mounting site in the building by a carriage 2, and the steel frame is axially supported to the skeleton via joint plates 10, 13, and a pin 14, in a rotatable manner in the horizontal direction. Then, the steel frame 1 is supported by a vertical jack 15, and the carriage is removed, followed by rotating the steel frame about the pin in a skeleton direction by means of a horizontal jack 16, to thereby mount the steel frame on the mounting site.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a renovation method for an existing building, and more particularly to a method for renovating a building for mounting a large-sized heavy member such as a steel frame used at a seismic retrofitting work at a predetermined position on the building.

[0002]

2. Description of the Related Art In seismic retrofitting work, a part of a skeleton wall is removed to form an opening, and a steel frame is attached to the opening to mount the steel frame on an existing building. Often increase. Such a steel frame is usually attached using a lifting machine such as a crane. Cannot be attached. In a narrow space such as in an existing building, it is difficult to use a crane or the like in the first place. However, if a steel frame is attached from the outside of the building, such a problem does not occur.However, since there are many obstacles such as sashes and lattices on the outer surface of the building, In many cases, steel frame cannot be attached.

[0003] Conventionally, as shown in FIGS. 9 and 10, a carriage a transports from the entrance of the building to the vicinity of the mounting position in the building, and the carriage b uses a chain block b previously mounted on the ceiling in the building. Steel frame c mounted on
By lifting the frame, the frame is moved to the mounting position in the air and mounted.

[0004]

In the above-mentioned conventional example, it is necessary to apply a reaction force to the skeleton, so that it is impossible to cope with the position without a beam. In addition, since the chain block b is attached to the skeleton, the finishing material of the skeleton ceiling is damaged. Further, since the steel frame c is in a suspended state, it is difficult to position the steel frame c. In particular, when the gap between the opening and the steel frame is small or when the shape of the gap is complicated, it is difficult to fit the steel frame into the opening in the first place. Further, since the step of fitting the steel frame into the opening and the step of positioning the steel frame are performed by the same means and in the same process, the workability is poor. Note that as a reference,
No. 001-3571 is described. This relates to the method of damping wall construction in new construction work.In the steel frame construction stage, lift the damping wall with a crane, etc. and follow the mounting position of the steel column, and then attach one side of the damping wall to the steel column. Hinged,
When installing the outer wall version, open the damping wall so as not to hinder this work, and after completing the installation work on the outer wall version, close and position the damping wall, and then tighten the damping wall completely. Is carried out.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and enables a large-sized heavy member to be attached to an arbitrary position in a building without damaging a finishing material, and a gap between a frame attaching portion and a heavy member. It is an object of the present invention to provide a method of repairing a building in which installation of the member is easy even when the member is small, positioning can be performed accurately, and installation and positioning of the member are performed in different steps to improve workability. I do.

[0006]

As a first means, in a construction method in which a large-sized heavy member such as a steel frame is attached to a predetermined position of an existing building for repairing, the large-sized heavy member 1 is moved to a skeleton with a moving device. A first step of moving the large weight member to the skeleton so as to be rotatable in the horizontal direction, and a step of rotating the large weight member toward the skeleton about the pivot point 14. A third step of moving and mounting at the mounting position.

As second means, the first means is provided, and joint plates 10 and 13 are protruded from the front end in the moving direction of the large weight member and the skeleton, respectively.
By connecting these joint plates 10 and 13 rotatably via pins 14, the large weight member 1 is pivotally supported on the skeleton.

As a third means, there is provided the first or second means. After the completion of the second step, the large weight member 1 is supported by the vertical jack 15 to remove the moving device. After the large weight member is rotated by the horizontal jack 16 and the vertical, horizontal, and depth positions are adjusted between the vertical jack and the horizontal jack, the large weight member is assumed to be worn.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an example in which a building renovation method according to the present invention is applied to a seismic retrofitting work for improving earthquake resistance by attaching a steel frame will be described. Some buildings have been partially finished with a wall material that lacks earthquake resistance, such as glass, from the viewpoint of external appearance and lighting, etc.
In order to improve earthquake resistance, the wall material is removed and a steel frame for reinforcement is attached instead.

As described above, since it is difficult to use a crane in an existing building, in the present invention, the steel frame 1 is moved to the vicinity of the mounting position of the frame by the following method. First, as shown in FIGS. 1 to 4, a truck 2 for moving a steel frame is carried in near the entrance of a building. The carriage 2 includes a pair of frames 3 arranged in parallel with each other at a predetermined interval, and a plurality of remote control types attached to the lower ends of these frames and rotatable in the left and right directions with respect to the traveling direction. It comprises an electric roller 4, a horizontal member 5 for supporting the steel frame 1 connecting the pair of frames 3 at both front and rear ends, and support legs 6 for supporting the front and rear ends of the pair of frames from left and right.

In order to mount the steel frame 1 suspended by the crane 7 on the carriage 2, the cross member 5 is removed from the frame 3,
After inserting the steel frame between the two frames, the temporary fixing member 8 is inserted into the opening of the steel frame, and both ends thereof are fixed to the front and rear ends of the frame 3, and the frame is temporarily fixed with these temporary fixing members. After being fixed, the horizontal member 5 is inserted into the opening of the steel frame 1 and both ends thereof are fixed to the front and rear ends of the frame 3 so that the steel frame is supported by the horizontal member 5, and then the temporary fixing member 8 is fixed to the frame. Body 3
Then, the wire rope of the crane 7 is removed from the steel frame 1.

As described above, the steel frame 1 is
Then, the electric roller 4 is driven to drive the carriage 2 from the entrance into the building. The steel frame 1 has a large number of stud bolts 9 for transmitting shearing force projecting from both front and rear side surfaces and upper and lower side surfaces, and a joint plate 10 having a through hole protruding from the front side surface as shown in FIG. Usually, a plurality of joint plates are provided at the top and bottom.

The cart 2 carried into the building is further moved to a predetermined mounting position shown in FIG. The mounting position is the opening 12 where the wall material such as glass is removed from the concrete wall 11 on the skeleton side as described above, and one side of this opening is transparent through an anchor as shown in FIG. A pair of joint plates 13 with holes are vertically projected.

In order to attach the steel frame 1 to the opening 12, as shown in FIG. 6, the steel frame is inclined with respect to the opening surface of the opening 12 so as to approach the opening, and the joint plate 10 on the steel frame side is provided. Is vertically overlapped with the joint plate 13 on the opening 12 side, and the stud bolts 14 with heads are inserted into the through holes of both joint plates.

After the steel frame is pivotally supported on the skeleton side in this way, vertical jacks 15 are arranged on the lower surfaces of the front and rear ends of the steel frame 1 as shown in FIG. 7, and the steel frame is rotated by these jacks. After being freely supported, the carriage 2 is moved rearward and removed from the steel frame. Next, a horizontal jack 16 is arranged on the floor surface, and this is brought into contact with a vertical jack 15 located at the rear end of the steel frame 1.
The vertical jack 15 is extended by extending the horizontal jack.
After the steel frame is rotated in the direction of the opening through the opening to attach the steel frame to the opening 12, the vertical jack 15 and the horizontal jack 16 further adjust the position of the steel frame in the vertical, horizontal, and depth directions. Assumed to wear. FIG. 8 shows this state.

Since the vertical jack 15 slides along a fixed turning trajectory due to the extension of the horizontal jack 16, a slide plate (not shown) is attached to the vertical jack and the floor along the turning trajectory from the viewpoint of reducing frictional resistance. It is preferable to interpose between the surface and the surface.

[0017]

According to the first to third aspects of the present invention, a large-sized heavy member is carried into the vicinity of the mounting position by a moving device without using a crane or the like, so that it can be mounted in a small place such as in a building. be able to. In addition, after the large weight member is once pivoted to the skeleton, it is attached by rotating about the pivot point, so that the movement of the large weight member is restricted to a certain range, in other words, a certain rotation locus. Therefore, positioning can be performed easily and accurately, and the construction period can be shortened.

Further, since there is no need to apply a reaction force to the skeleton at the time of mounting, it is possible to cope with a position without a beam,
It does not damage the finishing material of the skeleton ceiling. Further, since it is not necessary to change the chain block as in the conventional example, it is possible to prevent the occurrence of injuries caused by the work.

According to the second aspect of the present invention, since it is possible to use only the joint plate and the pin without using a chain block or the like as in the conventional example, the cost can be reduced. According to the third aspect of the invention, the mounting and positioning of the large weight member are performed by different means and in different steps, so that the workability is improved.

[Brief description of the drawings]

FIG. 1 is a view showing a construction method according to the present invention, and is an explanatory view of a step of transferring a large weight member from a crane to a bogie.

FIG. 2 is a front view of a cart on which a large weight member is placed, as viewed from the front.

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a plan view of FIG. 2;

FIG. 5 is a perspective view of a joint plate and a headed stud bolt protruding from each of the large weight member and the skeleton.

FIG. 6 is a schematic explanatory view showing a state in which one end of a large weight member is pivotally supported to a mounting position of a building.

FIG. 7 is a schematic explanatory view of FIG. 6 viewed from above.

FIG. 8 is a schematic explanatory view showing a state in which a large weight member is attached to an attachment position.

FIG. 9 is an explanatory view showing a state in which a large-sized heavy member is carried in a conventional example.

FIG. 10 is an explanatory view showing a state in which the large weight member is moved in the air.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Large weight member 2 Moving equipment (trolley) 10, 13 Joint plate 11 Body 15 Vertical jack 16 Horizontal jack

Continued on the front page (72) Inventor Keiki Kamoto 8-21-1, Ginza, Chuo-ku, Tokyo Inside Takenaka Corporation Tokyo Main Store (72) Inventor Takeshi Okuda 8-2-1, Ginza, Chuo-ku, Tokyo Inside Takenaka Corporation Tokyo Main Store (72) Inventor Hideyuki Suzuki 8-21-1, Ginza, Chuo-ku, Tokyo Inside Tokyo Main Branch Takenaka Corporation (72) Inventor Norio Kosaka 8-chome Ginza, Chuo-ku, Tokyo 21-1, Takenaka Corporation Tokyo Main Store (72) Inventor Takuya Nishimura 8-21-1, Ginza, Chuo-ku, Tokyo Inside, Tokyo Takenaka Corporation Tokyo Main Store (72) Inventor Yuji Katsuta Tokyo Central 8-21-1, Ginza-ku, Tokyo Inside Takenaka Corporation Tokyo Main Store (72) Inventor Minoru Kikuta 8-2-1-1, Ginza, Chuo-ku, Tokyo Inside Takenaka Corporation Tokyo Main Store (72) Inventor Iwata Masayuki 8-21-1, Ginza, Chuo-ku, Tokyo Inside the Takenaka Corporation Tokyo head office F-term (reference) 2E174 AA01 B A05 CA03 CA23 DA01 DA14 2E176 AA01 AA07 BB29

Claims (3)

[Claims] 1. A method of repairing by attaching a large-sized heavy member such as a steel frame to a predetermined position of an existing building, wherein the large-sized heavy member 1 is moved to a position near an attachment position to a skeleton 11 by a moving device. A second step of pivotally supporting the large weight member to the frame so as to be rotatable in the horizontal direction, and a third step of rotating the large weight member toward the frame around the pivot point 14 and attaching the large weight member to the mounting position. A building renovation method characterized by steps. 2. Joint plates 10 and 13 are protruded from the front end of the large weight member in the moving direction and the frame, respectively.
2. The method for renovating a building according to claim 1, wherein the large weight member 1 is pivotally connected to the skeleton by being rotatably connected to the building. 3. After the completion of the second step, the large weight member 1
Is supported by the vertical jack 15 and the moving equipment is removed. Then, in the third step, the large weight member is rotated by the horizontal jack 16, and the vertical jack and the horizontal jack are used to adjust the position in the vertical, horizontal and depth directions. The method according to claim 1 or 2, wherein a large weight member is tentatively worn after performing.