JPS6041189B2 - Pillar construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a foundation metal fitting extending in the direction of the foundation at the lower end of the column, and also adjusts the height of the column and the foundation metal fitting using a liner, thereby allowing the column to stand accurately. This article relates to a pillar erection method that makes it possible to install columns.

Conventionally, steel columns have either been erected independently on the foundation as a so-called independent column with a base plate attached to the bottom end of the column, or as a continuous column with the bottom end connected by a connecting beam. In order to erect the columns vertically, it is necessary to accurately finish the perpendicularity between the columns and the base plate and the levelness of the top surface of the cloth foundation. In addition, when the lower ends of columns are connected by connecting beams, the columns can be installed vertically by accurately forming the length of the connecting beams and the perpendicularity of both ends, but columns with this type of structure are difficult to install. There are problems such as the difficulty and the amount of material required increases during the process. The present invention allows the pillar to be vertically and firmly erected on the cloth foundation by extending the base metal fittings to the side at the lower end of the column and making it possible to adjust the height of the raised part on the cloth foundation using a liner. The purpose of this invention is to provide a method for constructing pillars that can be used for construction, and one embodiment of the method will be described below based on the drawings.
The pillar erecting method of the present invention is to erect a pillar 4 at the corner part 3 of the foundations 2, 2, and the pillar 4 is formed using, for example, a square steel pipe, and the pillar 4 is formed at the base of the foundation 2, 2. The base metal fittings 5, 5 extending in the direction are protruded to the side. The base metal fittings 5, 5 are
A base plate 6 and a middle plate 7 provided vertically at the lower end of the column 4
The upper flange 9 and the lower flange 1 are made of H-shaped steel that can be aligned with the upper flange 9 and the lower flange 1.
0 and the web 11 are the base plate 6 and the middle plate 7.
and welded to the web plate 12, respectively.

A cover plate 13 is attached between the base plate 6 and the middle plate 7, and end fittings 14 having an L-shaped cross section are welded to each tip of the base metal fitting 5 with the lower plate 16 thereof protruding outward. The end fitting 14 is reinforced by a gusset plate 17, and a through hole 20 into which an anchor bolt 19 is inserted is provided in the lower slope 16 and the base plate 6. At the corner portions 3 of the foundations 2, 2, a fan-flat raised portion 21 on which the base plate 6 can be placed and whose upper surface is a substantially horizontal flat surface is formed using mortar or the like, while each end of the base metal fittings 5 is Flat raised parts 22, 22 having a smaller height than the flat raised part 21 are similarly formed at the mounting position of the lower plate 16, and a live plate is formed between the lower plate 16 and the flat raised part 22. 8 and 8 are interposed. The liner 8 is a relatively thin flat plate made of steel and has notched grooves 24, 24 on one end edge that separate the mounting pitch of the anchor bolts 19. Various thicknesses are prepared taking into account the overhang error. Note that the liner 8 can be formed into a thin body instead of a single plate, and can be formed into a thin body that can form a liner of a predetermined thickness by overlapping them. The pillar erection construction method of the present invention is such that when the base plate 6 is placed on the flat raised part 21 and the pillar 4 is vertically erected, the flat raised parts 21, 22 and the base metal fittings 5, 5 are formed,
By inserting the liner 8, which has a thickness equal to the gap between the lower plate 16 and the raised part 22 due to manufacturing errors, into the notched groove 24 while inserting the anchor bolt 19, the raised part 21, The height error of the column 22 can be corrected together with the manufacturing error of the base metal fitting 5, and therefore the column 4 can be easily fixed vertically.

Note that a nut (not shown) is screwed onto the anchor bolt 19. However, in the construction method of the present invention, by making corrections using the liner 8, the columns 4 can be easily and vertically erected, and since the columns 4 have foundation metal fittings that extend toward the foundation, the columns 4 are extremely stable. Moreover, it can be firmly installed at the corner part 3 of the foundations 2, 2.

In addition, since the flat raised part 22 is formed lower than the flat raised part 21, the pillar 4 can be formed at the correct height with the flat raised part 21 as a reference, but the base metal fitting 5 may be lowered, for example, below the treetop due to manufacturing errors. Even when the column is tilted, errors can be absorbed by using a thin liner 8, etc., making it easy to install the column. As mentioned above, the construction method of the present invention is a pillar erection construction method in which a pillar is erected at the corner part of the foundation, and the foundation metal fittings extending toward the foundation are exposed at the lower end of the pillar and are mounted on the flat part provided at the corner part. In comparison, the raised portion at the end of the base metal fitting is formed low, and the difference in height is corrected using a liner, so the pillar can be made strong, easy, and accurate.

The construction method of the present invention can also be used in corner areas where the foundations intersect in a T-shape, and the foundation metal fittings can be selected appropriately depending on the number of intersecting foundations, such as not only in two directions but also in three directions and even four directions. sell.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view illustrating a column obtained by the method of the present invention. 2...Foundation, 3...Corner section, 4...
...Column, 5...Foundation metal fittings, 21, 22...
... flat portion. Figure 2 Figure 1

Claims (1)

[Claims] 1. A column erection method in which columns are erected at the corners of the foundation, in which foundation metal fittings extending in the direction of each foundation are placed at the bottom end of the column, and the pillars are installed at the corners of the foundation. A column erection method characterized by forming small flat raised portions on the foundation at each end position of a base metal fitting, and correcting the height error of each flat raised portion using a liner.