JPS62253876A - Method for arranging pillar - 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 [Industrial Applications] The present invention relates to a method for installing columns in which columns supporting the main columns of a building frame are installed at predetermined intervals between the main columns.

[Problem that the invention seeks to solve]

When constructing a column placed between a beam and a foundation beam, the column base is usually attached to the foundation beam using a base plate and anchor bolts, but this conventional construction method has the following problems in terms of workability.

In other words, it is difficult to erect columns after the beams are erected, precision is required for positioning them, and it is not possible to arrange reinforcement at the column base before erecting the columns, making it difficult to construct them efficiently. difficult to do.

This invention was made for the purpose of solving the problems associated with the conventional pillar construction method and streamlining the construction.
This is an attempt to solve this problem by constructing the pillars suspended from beams, etc.

[Means for solving problems]

In the present invention, the lower end of a vertically suspended column is located in the foundation beam, and the column is installed by burying it in the foundation beam, thereby simplifying and increasing the efficiency of construction.

Columns are supports that support the main pillars of a building frame, and are installed at predetermined intervals between the main pillars.

The columns are suspended from beams, foundations, or cranes, and are maintained in that state until concrete is poured into the foundation beams. The pillars are installed suspended from the beams installed between the main pillars, and the lower ends of the pillar bases are simply buried in concrete and fixed, so the lower ends of the pillars are not necessarily the same as the main pillars. Therefore, there is no need to embed the support deeply into the foundation beam, so an embedded member to be buried into the foundation beam is vertically attached to the lower end of the support.

After placing this embedded member in a predetermined position on the foundation,
Concrete is poured into the foundation beams on the foundation, and the embedded members are buried in the foundation beams to install the columns.

〔Example〕

The present invention will be explained below based on the drawings showing one embodiment.

As shown in FIG. 1, this invention is a method in which a support column 1 is placed between a beam 2 and a foundation beam 3, and is placed between main columns A and A constituting the main frame of a building.

The pillar 1 is mainly made of a steel frame or precast concrete, and an embedded member 4 is vertically attached to the lower end thereof. Then, as shown in FIGS. 1-r and 1-n, the embedded member 4 of the support column is positioned on the foundation 5 and placed in a predetermined position. The foundation 5 is a footing of the foundation beam 3 or a foundation slab.

The embedded member 4 is positioned by having its side surface engaged with a positioning member 6 fixed to the foundation 5, as shown in FIGS. 2 and 3.

An angle piece or the like as shown in the figure is used as the positioning member 6, and is fixed to the foundation 5 with an anchor bolt 7.

Figure 2 shows the case where the support column 1 is connected to the foundation beam 3 by a bottle. In this case, the column base transmits 2 axial forces and 2 shear forces to the foundation beam 3, but even if there is a slight clearance between the bottom end of the column 1 and the top of the foundation beam 3, the cross section is large enough to transmit the above forces. Embedded member 4 is provided.

FIG. 3 shows the case where the support column 1 is fixed to the foundation beam 3. In this case, connect the base plate to the lower end of the column 1, attach the threaded embedded member 4 to it, position it with the nut on the bottom of the base plate, and tighten the nut on the top of the foundation beam 3 after concrete is poured. Post 1 is fixed.

FIG. 4 shows another embodiment in which the support column 1 is semi-fixed, and FIG. 5 shows another embodiment in which it is fixed.

In the embodiment shown in FIG. 4, a plurality of embedded members 4 are attached to the lower end of the column 1, and in the embodiment shown in FIG. 5, the lower end of the column 1 is embedded together with the embedded members 4 in the foundation beam 3. Of these, holes for reinforcing are provided in the side surface of the column 1 in case (2), and embedded members 4 are welded directly to the side surface of column 1 in case (2).

FIG. 6 shows a method for suspending the support column 1.

■ is the case where the upper end of the column l is fixed to the beam 2 and suspended, and ■ is the case where the column 1 is temporarily fixed to the base on the beam on the upper floor or the foundation beam 3.

(2) is a case where the support column 1 is suspended and supported by a crane or the like.

Finally, the construction procedure will be briefly explained.

First, the pillar 1 is suspended in a predetermined position, erected on the foundation 5, and positioned using the positioning member 6.

Next, the reinforcement for the foundation beam 3 is arranged, concrete is poured, and the installation work for the pillar 1 is completed.

This reinforcing work can also be carried out before the pillar 1 is erected since the embedded member 4 does not particularly interfere.

Although the above embodiment shows the case where the embedded member 4 is attached under the support column 1, it is of course possible to lengthen the entire support column 1 without looking into the embedded member 4 and perform direct positioning using this. .

〔Effect of the invention〕

The present invention is as described above, and since the pillar is installed at the lower end of the beam before concrete is poured into the foundation beam, the following effects are brought about.

Easier to erect pillars, especially by moving laterally,
Furthermore, the lower end can be positioned accurately.

Reinforcement for foundation beams and column bases does not matter before or after the columns are erected.

Since the column can be expected to receive tensile force due to suspension from the beam, the column base may have a small cross section like an embedded member, and the embedded member does not need to have high rigidity to stand on its own. As a result of the reduced cross-section of the lower end of the column, reinforcing work for the foundation beam becomes easier.

Since the column base does not necessarily require base plates, anchor bolts, etc., it is possible to form a column base that does not protrude from the top of the foundation beam, and the structure of the column base is greatly simplified. This makes it possible to streamline construction.

[Brief explanation of drawings]

FIG. 1 - ■ is a front view showing the outline of the present invention, ■ is an enlarged view thereof, and ■ is a side view thereof. FIGS. 2 to 5 are front views showing an embodiment of the column base, and FIG. 6 is a front view showing how the column is hung. A... Main pillar, 1... Pillar, 2...
... Beam, 3 ... Foundation beam, 4 ... Embedded member, 5 ... Foundation, 6 ... Positioning member, 7 ... Anchor bolt.

Claims (1)

[Claims] (1) Suspend the pillars that support the main pillars that make up the building frame into predetermined positions, position the lower ends of the pillars on the foundation beams while hanging vertically, and then pour concrete into the foundation beams. , A column installation method in which the bottom end of the column is buried in the foundation beam.