JPH0229134B2 - JOGEKAIKENCHIKUYUNITSUTONOSETSUGOHOHO - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel method for joining upper and lower floor building units.

A similar upper floor building unit is installed and joined on top of the open-top lower floor building unit (U-shaped rigid-frame unit), which has steel pillars erected at each of the four corners of the floor, to construct a building with two or more floors. In this case, as shown in Japanese Unexamined Patent Publication No. 55-30085, anchors are installed at the upper end of the steel column of the lower floor building unit, while anchors are installed at the bottom four corners of the upper floor building unit. An insertion hole is provided and a pliable curing agent filling bag is provided in the four corners of the bottom portion to communicate with the anchor insertion hole, and when joining the upper and lower floor building units,
There is a method of inserting the anchor into the anchor insertion hole, filling the curing agent filling bag with a curing agent, and curing it to join. However, in such a method, the anchor insertion hole opens downward. Because of this, the hardening agent easily leaks, and as mentioned above, since the flexible hardening agent filling bag is inflated and filled with hardening agent, the amount of hardening agent filled cannot be determined, and if the amount filled is small, This causes poor bonding, and on the other hand, if the amount of hardening agent filled increases, there are problems such as the hardening agent being wasted. In addition, in the above conventional method, if the anchor insertion hole is made to have approximately the same diameter as the anchor diameter in order to prevent curing agent leakage, even under normal circumstances, the joining work must be performed by the worker in an upward position to determine the joining position. However, there is a problem that makes this joining work increasingly difficult.

The present invention provides a new and progressive method for joining upper and lower floor building units, which utilizes a joining method by hardening agent filling and eliminates the above-mentioned drawbacks of this joining method.

That is, the method of joining upper and lower story building units of the present invention involves erecting steel columns having guide pins on their upper end faces at each of the four corners of the floor, and connecting the upper ends of at least two adjacent steel columns. An upper floor building unit having guide pin guide holes at the four corners of the bottom of the floor is placed on the above-mentioned steel columns of the lower floor building unit formed by joining steel beams between the sections. This is a method of installation and joining by inserting a guide pin, in which an opening is provided in the upper end surface of each of the steel columns of the lower floor building unit, and the sheath pipe with an open upper part faces the opening. A grout injection hole is fitted into the upper end of each of the steel columns, and a grouting agent injection hole communicating with the sheath pipe is provided on the side of each of the steel columns, and the sheath pipe is fitted on the upper end surface of each of the steel columns. Grout overflow grooves communicating with the upper floor building unit are provided respectively, and anchors are provided at the four bottom corners of the floor of the upper floor building unit, respectively, and the anchors are inserted into the sheath pipes of the upper floor building unit. After installing the grout at a predetermined position on the lower floor building unit, the grout is filled into the sheath pipe through the grout injection hole until it overflows from the grout overflow groove, and the grout is hardened and then The present invention is characterized in that the anchor is fixed within the sheath tube.

Hereinafter, one embodiment of the method for joining upper and lower floor building units of the present invention will be described with reference to the drawings.

In carrying out the method of the present invention, first, a lower floor building unit 1 and an upper floor building unit 2 as shown in FIG. 1 are formed in a conventional factory.

As shown in FIGS. 1 to 3, the lower floor building unit 1 has steel columns 1 at each of the four corners of the floor 11.
The structure is mainly composed of a rigid frame unit with a U-shaped appearance formed by standing upright, and a concrete load-bearing wall 13 is fixed to the side that will be the outer wall position, and the side that will become an opening on the entire surface by installing sashes etc. By connecting steel beam members 14 between the upper ends of the steel columns 12 located on both sides, the shape shown in the figure is maintained firmly. In order to carry out the method of the present invention, the lower floor building unit 1 is
On the upper end surface 12' of each of the above-mentioned steel columns 12,
An opening 15 is provided at the center thereof, and an upwardly directed guide pin 16 is provided at the periphery thereof, and within the upper end of each of the steel columns 12,
A cylindrical sheath tube 17 with an open top is fitted and fixed so as to face the opening 15, and the sheath tube 1 is fitted onto the side of the upper end of each of the steel columns 12.
A grout injection hole 19 communicating with the sheath pipe 17 is provided on the lower side of the steel column 12, and a grout overflow groove 20 communicating with the sheath pipe 17 is provided on the upper end surface 12' of each of the steel columns 12. be. Further, 21 is a partition steel plate that is fixed in the hollow portion of the steel column 12 and supports the sheath pipe 17 from below.

Incidentally, the locations and number of fixing points of the load-bearing wall 13 and the steel beam material 14 to the side portion of the rigid frame unit can be appropriately selected depending on the purpose. or,
The sheath tube 17 is not limited to a cylindrical shape as shown in the illustrated example, and may be, for example, one whose circumferential side portion is bent in a wave shape, or whose circumferential side portion is widened. However, using either of the latter two can further improve the fixation of the anchor described later with the grouting agent. Further, it is preferable that the grout injection hole 19 communicates with the sheath pipe 17 in the direction of the inner surface of the lower floor building unit 1 and at the side or bottom of the sheath pipe 17.

The upper floor building unit 2 also has guide pin guide holes (not shown) provided in the four corners of the bottom of the floor 22 corresponding to the guide pins 16 and the sheath pipes 17 of the lower floor building unit 1, respectively. ) and a downward anchor 24 are provided.

The upper floor building unit 2 is not limited in any way except that it is provided with the guide pin guide hole and the anchor 24 as described above, and may be formed in the same manner as the lower floor building unit 1, or may be formed using the steel beam material 14. It is also possible to eliminate the need for . However, if the building to be constructed is a two-story building, a roof section (not shown) is usually provided.

When installing and joining the upper floor building unit 2 to the lower floor building unit 1 formed as described above, first, a crane or the like is used to move the upper floor building unit 2 above the lower floor building unit 1 that has been installed and fixed in a predetermined position. After lifting the floor building unit 2 and gradually lowering the upper floor building unit 2, guiding the anchor 24 to the sheath pipe 17, inserting the guide pin 16 into the corresponding guide pin guide hole, and lowering the upper floor building unit 2. It is installed at a predetermined position on the floor building unit 1. At this time, the anchor 24 is inserted into a predetermined position within the sheath tube 17 as shown in FIG. 4 by the guiding action of the guide pin 16 and the guide pin guide hole.

Next, after finely adjusting the installation of the upper floor building unit 2 with respect to the lower floor building unit 1 in the left-right, front-back, and up-down directions, the grout 3 (hardening agent, preferably a quick-drying one) is poured into the grout overflow groove 20. The grout is filled into the sheath pipe 17 through the grout injection hole 19 until it slightly overflows. In this case, the grouting agent 3 can be filled by using a filling gun 4 or the like, for example.

If left as it is, the grout 3 will harden within the sheath tube 17, so the anchor 24 inserted into the sheath tube 17 can be fixed to the sheath tube 17 via the grout 3. As shown in FIG. 4, the upper floor building unit 2 can be joined to the lower floor building unit 1 at a predetermined position.

The drawings show an example in which the upper and lower floor building units are both one unit and have an outer wall (load-bearing wall), but when constructing a house, multiple building units may be placed side by side regardless of whether they are on the upper or lower floors. It goes without saying that there are also architectural units that do not have an outer wall.

Since the method of joining upper and lower floor units of the present invention is constructed as described above, it has various effects as described below, and is of high industrial value.

Since the anchor is installed in the upper floor building unit and the sheath pipe is installed in the lower floor building unit, the worker can insert the anchor into the sheath pipe in a downward position. Installation work of building units can be performed easily and safely.

Further, since the grouting agent is filled after the upper floor building unit is positioned to the lower floor building unit, it is possible to ensure that the anchor is fastened with the grouting agent.

Furthermore, the grouting agent is filled into the sheath pipe through the grouting agent injection hole, and this filling is carried out until the grouting agent slightly overflows from the grouting agent overflow groove at the top of the sheath pipe, so it is difficult to complete the filling of the grouting agent. It can be easily confirmed, and the amount of grouting agent filled can be made uniform in any steel column and any lower floor building unit, and the grouting agent can be tightly filled in the sheath pipe.

Furthermore, because the grout is not filled in the entire upper end of the steel column of the lower floor building unit, and the grout is filled in the sheath pipe that occupies a part of this upper end, the amount of grout filled is small. Therefore, it is not only economical, but also makes it possible to shorten the filling time of the grouting agent, facilitate the pumping of the grouting agent from below, and improve the workability of filling the grouting agent. By shortening the hardening time of the grout at the bottom, the upper floor building unit can be stably joined to the lower floor building unit.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an upper and lower floor building unit used in one embodiment of the present invention before joining, and FIG.
FIG. 3 is an enlarged perspective view of the upper part of the column of the lower floor building unit, and FIG. 4 is a vertical sectional view of the joint of the upper and lower floor building units joined according to an embodiment of the present invention. It is. DESCRIPTION OF SYMBOLS 1... Lower floor building unit, 2... Upper floor building unit, 3... Grouting agent, 11... Floor of lower floor building unit, 12... Steel column body, 12'... Steel column body Upper end surface, 14... Steel beam material, 15... Opening, 16... Guide pin, 17... Sheath pipe, 1
9... Grout injection hole, 20... Grout overflow groove, 22... Floor of upper floor building unit, 24...
…anchor.

Claims (1)

[Claims] 1. A bottom made by erecting steel columns having guide pins on their upper end surfaces at each of the four corners of the floor, and joining steel beams between the upper ends of at least two adjacent steel columns. A method of installing and joining an upper floor building unit having guide pin guide holes at four corners of the bottom of the floor part on the steel column of the floor building unit by inserting the guide pins into the guide pin guide holes. , an opening is provided in the upper end surface of each of the steel columns of the lower floor building unit, and a sheath pipe with an open upper part is fitted into the upper end of each of the steel columns so as to face the opening; Further, a grout injection hole communicating with the sheath pipe is provided on the side of each of the steel columns, and a grout overflow groove communicating with the sheath pipe is provided on the upper end surface of each of the steel columns. Anchors were provided at each of the four bottom corners of the floor of the upper floor building unit, and the upper floor building unit was installed at a predetermined position on the lower floor building unit by inserting the anchors into the sheath pipes. After that, the grout is filled into the sheath pipe through the grout injection hole until it overflows from the grout overflow groove, and the grout is hardened to fix the anchor in the sheath pipe. How to connect upper and lower floor building units.