JPS63241238A - Pillar/beam connection structure - 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] [Technical field 1 The present invention relates to a column-beam joint structure.

[Background Art] Figures 11 and 12 show a conventional column-beam joint structure, in which a horizontal steel 7-2 is protruded on the outer surface of a column 1 made of steel with a mouth-shaped cross section. The beams are welded together, and then the inter-beam fixing metal i4:3 made of H-type steel is fixed to this horizontal stiffener 2 by butt welding, and the beam 5 made of H-shaped steel is joined to this beam-to-beam fixing plate 3 via the connecting plate 4. It is something to do.

However, in this conventional structure, it is necessary to weld the horizontal stiffener 2 to the column 1 and the welding between the beams 3 to the horizontal stiffener 2, which increases the cost.Moreover, the load is carried only by the side wall of the column 1. There is a problem in that the burden on the column 1 is large. Furthermore, when transporting the column 1 to the construction site, the beam fixing fittings 3 are fixed in advance, which poses a problem in that the space occupied during transport is large and the transport efficiency is poor.

[Objective of the Invention] The present invention has been made in view of the above-mentioned problems, and its objectives are to simplify processing, reduce the number of man-hours required, enable rigid connection of beams, and further improve the structure of columns. An object of the present invention is to provide a column-beam joint sliding structure that can be easily and efficiently transported.

[Disclosure of the Invention 1 The present invention provides a back plate that is disposed inside the column so as to face the inner surface of the hollow column, and a screw hole for screwing the beam fixing bracket mounting bolt corresponding to the insertion hole drilled in the column is provided as described above. The feature is that a bolt for attaching the beam-to-beam fixing plate formed on the back plate and inserted through the beam-to-beam fixing plate can be screwed into the above-mentioned screw hole through the insertion hole in the column. It can be fixed, and the column can be reinforced with a backing plate for rigid connection.

Hereinafter, the present invention will be explained with reference to examples. Figures 1 to 5 show this example, and as shown in the first leap, there is a hollow column 1 made of cross-sectional mouth-shaped steel material with four sides. A back plate 6 made of an iron plate is disposed to correspond to the side wall of each. As shown in FIG. 2, each back plate 6 has a nut 8 fixed to the back surface of the back plate 6 by groove welding, and the screw hole of the nut 8 forms a screw hole 7 for a beam fixing metal fitting bolt. One set consists of four nuts that are installed vertically and horizontally, and one back plate 6 is provided with eight groups of two nuts (upper and lower), corresponding to the screw entrances of the screw holes 7 of each nut 8. The back plate 6 itself is brought into contact with the inner wall surface of the lamp post body 1 so that the opening of the hole in the back plate 6, which is a perforated hole, is opposed to the insertion hole 9 formed in the side wall of the column body 1.

A set of four back plates 6 are arranged on the column 1 at predetermined intervals as shown in FIG. In this case, the back plate 6 is temporarily fixed by threading a temporary fixing bolt from outside the column 1 into the inter-beam fixing bolt attachment screw hole 7 of each back plate 6.

Next, when fixing the beams 5 at the construction site, remove the above-mentioned temporary fixing bolts and install a beam-to-beam fixture made of T-shaped steel with a horizontal piece 10b protruding laterally from the center of the vertical piece 10a as shown in FIG. The tool 10 is fixed with a fixing bolt 11.

Here, the beam fixing member 10 has holes 12 for inserting bolts on the top, bottom, left and right sides of the vertical piece 10a, and the horizontal piece 10b has holes 12 for inserting fixing bolts for connecting to the beam 5 made of H-type steel. A hole 13 is drilled, and first a hole 4 is drilled in the vertical piece 8a.
The above-mentioned fixing bolt 11 is inserted into each hole 12, and further screwed into the screw hole 7 of the nut 8 of the back plate 6 inside the column 1 through the insertion hole 9 of the column 1, and tightened. In this way, two upper and lower beam fixing metal fittings 10 are fixed to one back plate 6.

Next, insert the end of the beam 5 between the horizontal pieces 10b of the upper and lower inter-beam footings, fi, 10, and connect the upper and lower horizontal pieces 5a, 5b.
is brought into contact with the horizontal piece 10[), and the holes 13 of the horizontal piece 101] are made to correspond to the fixing bolt insertion holes (not shown) drilled in the horizontal piece 5at5bl:, and the fixing bolts 14 are inserted into these holes 13 and 1 fixing bolts. The beam 5 is fixed by inserting it into the insertion hole and tightening the nut 15.

Note that the nut 8 may be removed by covering the nut 8 with a metal cap 16 as shown in FIGS. .

Further, a bolt insertion hole 17 is drilled in the column 1, and a screw hole communicating with the chain hole is bored in the center of the back plate 6 so that the back plate 6 can be fixed to the column 1 with a fixing bolt inserted from outside the column 1. You can also do it.

11'' In the above-mentioned Example 1, the screw hole 7 for screwing the beam fixing bracket mounting bolt was formed using 1+. The back plate 6 of this embodiment is shown, and FIG. 8 shows the back plate 6 disposed inside the column 1. As shown in FIG.

Installation 1 In the above-mentioned Embodiment 2, the screw hole 7 is drilled in the back plate 6 in advance and it is attached to the column 1, but in this embodiment, the configuration shown in FIG.
) (b) i:' = A back plate 6 consisting of a flat plate or an L-shaped bent plate is disposed inside the column 1 as shown in FIG.
After fixing, screw holes 7 are bored in the back plate 6 along with the column 1 from outside the column 1, and -C is fixed.

Incidentally, in each of the above embodiments, the columnar body 1 is of a cross-sectional type, but it is also possible to form the columnar body 1 of a cross-sectional type by combining steel materials with a cross-sectional type on which the back plate 6 has been arranged in advance. good.

[Effect of the Invention 1] The present invention provides a backing plate that is disposed inside the column so as to face the inner surface of the hollow column, and a screw hole for screwing the inter-beam foot fitting mounting bolt corresponding to the insertion hole drilled in the column. The bolt for mounting the beam fixing bracket formed on the I & plate and inserted into the inter-beam footing can be screwed into the screw hole through the insertion hole of the column.
When transporting the column, the back plate can be temporarily fixed with bolts from outside the column, so the back plate can be transported with the brackets removed, so the only thing that protrudes from the column during transportation is the temporary fixing bolt. It takes up less space, which improves transportation efficiency and reduces transportation costs.Furthermore, since the liangma ashikinai can be fixed to the column with bolts, there is no need for conventional welding, which makes processing easier. This has the effect of reducing man-hours and construction costs, and furthermore, the back plate strengthens the column and allows for a rigid connection.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a main part of Embodiment 1 of the present invention with some parts omitted, FIG. 2 is a perspective view of the back plate of the above, FIG. 3 is a reduced perspective view of the entire pillar body of the above, and FIG. is a perspective view of the Hasama Ashikinhei above,
Figure 5 is a partially omitted side view showing the same eastward position as above;
6(a) and 6(b) are sectional views of essential parts of another example of the same back plate as above, and an enlarged perspective view with some parts omitted; FIG. 7 is a second embodiment of the present invention.
FIG. 8 is a perspective view of the same essential parts partially omitted; FIGS. 9(a) and 9(b) are perspective views of the back plate of Example 3 of the present invention, and FIG. 10 is a perspective view of the back plate of Embodiment 3 of the present invention. 11 is a reduced perspective view of a conventional pillar body, and FIG. 12 is a perspective view of the same as above with some of the main parts omitted. DESCRIPTION OF SYMBOLS 1... Column body, 6... Back plate, 7... Screw hole for threading the beam fixing fitting mounting bolt, 9... Insertion hole. Agent Patent Attorney Stone 1) Chief 7th 6H (0) (b) Figure 7 8v! 4

Claims (3)

[Claims] (1) A back plate is disposed inside the column so as to face the inner surface of the hollow column, and screw holes for screwing beam fixing bracket mounting bolts corresponding to the insertion holes drilled in the column are formed in the back plate. A beam-column joint structure characterized in that a bolt for attaching a beam-fixing bracket inserted through the beam-fixing bracket can be screwed into the screw hole through the insertion hole of the column body. (2) A patent claim characterized in that the screw hole for screwing the beam fixing metal fitting bolt of the back plate is formed by a screw hole of a nut fixed to the back surface of the back plate with the screw entrance facing the hole drilled in the back plate. Column-beam joint structure according to item 1. (3) The beam-to-column joint structure according to claim 1, wherein the screw holes for screwing together the beam fixing metal fitting bolts in the back plate are screw holes drilled directly in the back plate.