JPS5816416B2 - Reinforcement method for lightweight steel buildings and buildings thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for reinforcing lightweight steel buildings and the building.

Generally, light steel buildings such as prefabricated houses (hereinafter abbreviated as light steel buildings).

) uses lightweight steel frames for columns, beams, and beam connections to simplify the steel structure, so it cannot be said that they are strong against wind and earthquakes.

For this reason, this type of light iron building has conventionally been reinforced by intersecting steel bar places A between the spans, such as between the beams a and b, as shown in FIG.

In this case, in addition to reinforcing the building, in order to correct the distortion of the frame, place A will include steel bars 1 and 1, as shown in Figure 2.
A turnbuckle 3 is interposed between the turnbuckle 3 and the turnbuckle 3.
A configuration is generally used in which the place length can be changed to longer or shorter by rotating the .

By the way, in a reinforcement method using place A with this configuration, two places are usually installed intersecting each other between each span, so the turnbuckle rotation operation must be performed at least twice between each span. In addition to requiring an extremely large number of operations for the building as a whole, straightening the frame requires changing the length of the place between each span separately and independently. This work requires a high degree of experience and intuition, and is extremely complicated, time-consuming, and difficult work for unskilled workers.

Buildings built using reinforcement methods with such drawbacks have drawbacks such as a prolonged construction period and an accompanying increase in construction costs.

The present invention aims to provide a new and useful reinforcing method for light iron buildings that eliminates all of the above-mentioned shortcomings by using a place with a unique configuration different from the conventional place, and a building using the same. be.

Next, the reinforcement method of the present invention and the building thereof will be explained based on the drawings.

FIG. 3 shows a place used in the present invention, in which 11 indicates each side 11a of a quadrilateral.

11b, 11c, and 11d are pivotally connected to each other in a flexible manner, and a boss 12 is attached to the pivotally connected portion of the two opposing intersection points P and Q.
．． 13, and by screwing a threaded rod 15 with an operating part 14 into both bosses 12 and 13, and rotating the operating part 14, the distance between the two opposing intersection points P and Q can be changed to a longer or shorter length. Steel rods 16a, 16b, 16c, and 16d are pivotally mounted at appropriate positions on each side of the adjusting tool 11.

Mounting pieces 17a and 17d are attached to the tips of each steel rod 16a to 16d.
is fixed.

When the operating tool 14 of the adjusting tool 11 is rotated, arbitrary points X, Y, and Z on each side 11a to 11d draw a trajectory as shown in FIG.

That is, the center Y of the side 11a draws an arc-shaped locus E with the radius of % of the length of the side 11a, and the points X and Z near the ends have the length from these points to both ends of the side 11a as the major axis. , draw radial trajectories F and G with the short axis.

The center of each of these trajectories is equal to the center of the quadrilateral that constitutes the adjuster 11.

Since arbitrary points X, Y, and Z on each side draw such a trajectory, when the lengths of the steel rods 16a to 16d are made the same, the pivot points of each steel rod 16a to 16d to each side 11a to 11d are It is desirable to select landing positions at positions with equal trajectories.

In other words, each side 11a of each of the steel rods 16a to 16d
It is desirable that the pivot position to ~11d be symmetrical to the line connecting the two opposing intersections P, Q and R, S.

If each steel rod is kept in this positional relationship, each side 11a~
Of course, it may be placed in the center in the longitudinal direction on Ild or near the edge.

In addition, it is convenient to form pivot holes 18 at appropriate intervals on each side 112 to 11d, as shown in the illustrated example, so that the pivot positions of the steel rods 16a to 16d can be appropriately selected. It is.

Therefore, in the present invention, place B having this configuration is located between spans such as under the floor of the second floor as shown in FIG. b
Place plate d provided at connection point C with...
The steel rods 16a to 16d are tensioned by rotating the operating portion 14 of the jack-type adjuster 11.

In this case, when the operation part 14 is rotated, the ends of the steel rods 16a to 16d attached to each side of the adjuster 11 all draw the same circular or oval trajectory, and the place plate d... Since the distance from the other end attached to the steel rods 16a to 16d changes equally, each steel rod 16a to 16d is stretched uniformly between the spans.

Subsequent interior and exterior work will be carried out as usual to construct the light steel building.

The place B can be provided not only between the spans under the second floor shown in FIG. 5 but also between the spans inside the partition wall.

In that case, the attachment pieces 172 to 17d may be attached to a connection point such as a connection between a support and a beam or a connection between a support and a beam.

As described above, the light iron building reinforcement method and the building according to the present invention can be summarized as follows: each side of the quadrilateral 11a, 11b,
Steel rods 16a are installed at appropriate positions on each side of the jack-type adjuster 11, which pivotally connects the llc and lid in a flexible manner, and the distance between the two opposing intersection points P and Q can be changed in length or shortened by operation.
16b.

16c and 16d are pivotally mounted, and a mounting piece 17a is attached to the tip of each steel rod.
, 17b, 17c, and 17d.
is located between the spans, and each of the mounting pieces 17a, 17b
, 17c, 17d as pillar and beam a or beam a and beam connection b
etc., and operate the adjusting tool 11 to connect each steel rod 16a, 16b.

15c and 16d, the following advantages are obtained.

■ Place place B between the spans and attach each mounting piece 17a~
By attaching the rods 17d to predetermined connection points C..., it is possible to tension the steel rods 16a to 16d all at once by simply operating the adjusting tool.

In other words, in the past, when installing places between spans, it was necessary to perform the operation twice for each span, but according to the present invention, it is only necessary to perform the operation once. By halving the number of times, significant time savings can be achieved.

■ Place B is pivoted to each side 11a to 11d of the adjuster 11 so that each side 11a to 11d has the same length, each steel rod 16a to 16d has the same length, and each steel rod 16a to 16d has the same length to each side 11a to 11d. If used under the condition that the positions are line-symmetrical as described above, each mounting piece 172 to 17 will always move from the center of the quadrilateral that constitutes the adjuster 11 even if the adjuster 11 is operated.
The distance to d is kept equal and varies.

Therefore, even if the operator does not have advanced experience or intuition, he can reliably correct the distortion of the frame simply by operating the adjustment tool 11.

■ The reduction in the number of operations described in (2) and the advantages described in (2) combine to shorten the construction period and, accordingly, make it possible to significantly reduce construction costs.

[Brief explanation of the drawings] Figure 1 is a schematic diagram for explaining the conventional reinforcement method;
The figure is a perspective view of a conventionally used place, Figure 3 is an overall detailed view of the place used in the present invention, Figure 4 is a diagram showing the trajectory drawn by each side of the place in Figure 3, and Figure 5 is It is a schematic diagram for explaining the reinforcement method of the present invention. 11...Adjusters, 11a, 11b, 11c. 11d...side, 16a, 16b, 16c
, 16d.・・・・・・Steel rod, 17a, 17b, 17c
, 17d-=...Mounting piece, B...Place,
a... Beam, b... Beam connection, P, Q.
...Two opposing points of intersection, C...Connection point.

Claims (1)

[Scope of Claims] 1. A steel rod is pivoted at an appropriate position on each side of a jack-type adjuster in which each side of a quadrilateral is pivotably connected in a bendable manner, and the distance between two opposing intersection points can be changed in length or shortened by operation. A place consisting of a mounting piece provided at the tip of each steel bar is located between the spans, and each of the mounting pieces is attached to a connection point such as a column and a beam or a beam joint, and the adjustment tool is operated. A method for reinforcing lightweight steel buildings, characterized by the use of tensioned steel bars. 2. A steel rod is pivoted at the appropriate position on each side of a jack-type adjuster in which each quadrilateral piece is pivotally connected in a bendable manner, and the distance between two opposing intersection points can be lengthened or shortened by operation. A place consisting of a mounting piece provided at the tip is located between the spans, the mounting piece is attached to a connection point such as a column and a beam or a beam joint, and each steel bar is tensioned by operating the adjustment tool. A lightweight steel building.