JP5080343B2 - Beam adjusting jig and components used for the beam adjusting jig - Google Patents

Description

  The present invention relates to a beam adjusting jig used for horizontal position adjustment of a beam with respect to a column at a construction site of a building, and a structural member for a beam adjusting jig used therefor.

  In recent years, when building large buildings such as buildings, precast columns (hereinafter simply referred to as “columns”) and precast beams (hereinafter simply referred to as “columns”) manufactured in advance in the factory for shortening the construction period. "Beam") is brought to the construction site and assembled.

  The column X and the beam Y are block members made of concrete as shown in FIG. 1, and level adjustment bolts B are respectively screwed at the upper four corners of the column X. Therefore, in a state where the beam Y is bridged between the columns X, the beam Y is supported by the level adjustment bolt B of the column X, and the head of the level adjustment bolt B is between the column X and the beam Y. The gap S is formed by that amount.

  By the way, the work of bridging the beam Y between the columns X is performed by lifting the beam Y with a heavy machine such as a crane (not shown), and the horizontal position adjustment of the beam Y with respect to the column X is accurately performed with the heavy machine. Even if you are a skilled worker, it is not easy.

  Therefore, a beam adjusting jig (beam positioning device) has been conventionally used as a tool for adjusting the horizontal position of the beam Y with respect to the column X (see, for example, Patent Document 1).

  This conventional beam adjusting jig is generally composed of a jack and a support that supports the jack, and the overall length of the beam adjusting jig can be adjusted by the operating force of the jack.

  When adjusting the horizontal position of the beam Y with respect to the column X using the conventional beam adjusting jig, the entire length of the beam adjusting jig is reduced and placed under the beam Y. Operate the jack to extend the full length of the beam adjustment jig. Then, the end of the beam Y is slightly lifted, and the frictional resistance with the column X is reduced, so that the horizontal position adjustment of the beam Y with respect to the column X can be performed manually. When the position adjustment is completed, the beam adjustment jig is contracted and removed.

  The horizontal level adjustment of the beam Y may be performed by inserting a tool into the gap S between the column X and the beam Y and rotating the level adjustment bolt B to adjust the height of the level adjustment bolt B.

When the horizontal position adjustment of the beam Y with respect to the column X and the horizontal level adjustment of the beam Y are thus completed, the gap S is filled with mortar.
JP 2001-248308 A

  With conventional beam adjustment jigs, it was necessary to manually adjust the position of the beam in the horizontal direction, but adjusting the position of a very heavy member such as a beam manually requires a lot of labor. Also, it is not easy to adjust the horizontal position of the beam above the line of sight, and it is very difficult to adjust the position accurately.

  Therefore, an object of the present invention is to provide a beam adjusting jig capable of easily and accurately adjusting a horizontal position of a heavy beam located higher than the line of sight, and a beam adjusting jig used therefor. It is to provide a component.

  The invention described in claim 1 is “a member 10 for a beam adjusting jig used together with a jack 40 and used for adjusting the position of a beam Y provided on a column X in a horizontal direction with respect to the column X. (A) The beam-side fixing member 12 fixed to the beam Y, (b) The beam-side fixing member 12 is disposed between the beam-side fixing member 12 and the column X, and the distance d between the beam-side fixing member 12 and the column X is adjusted. And a jack support member 14 having a locking piece portion 34c inserted into a gap S formed between the column X and the beam Y. This is a jig component 10.

  In this invention, when the jack 40 is operated, the beam-side fixing member 12 receives the extension pressing force from the jack 40 and moves horizontally in a direction away from the column X. Since the beam-side fixing member 12 is fixed to the beam Y, the beam-side fixing member 12 is fixed when the beam-side fixing member 12 receives the extension pressing force from the jack 40 and moves horizontally in the direction away from the column X. The beam Y is also moved horizontally together with the beam-side fixing member 12, whereby the horizontal position of the beam Y with respect to the column X can be adjusted.

  When the horizontal position of the beam Y is adjusted, the beam side fixing member 12 constituting the beam adjusting jig component 10 is fixed to the beam Y, and the jack support member 14 is a locking piece. The portion 34 c is locked by being inserted into the gap S between the column X and the beam Y, and the jack 40 is supported on the jack support member 14. Therefore, at the time of the horizontal position adjustment operation of the beam Y, the beam adjustment jig component 10 and the jack 40 are not dropped even if the hand is released from the beam adjustment jig component 10, and the beam Y is horizontally aligned. The workability of the position adjustment work in the direction is greatly improved.

  According to the second aspect of the present invention, “the beam side fixing member 12 is fixed to the beam Y, and protrudes laterally from the fixing portion 16, and receives the extension pressing force by the jack 40. And a shaft 28 that moves horizontally together with the beam Y, and the shaft 28 is attached to the fixing portion 16 so as to be able to approach and separate from each other ”.

  When the beam-side fixing member 12 of the beam adjusting jig component 10 is fixed to the beam Y, the existing anchor nut Ya provided on the beam Y is used. The position of the existing anchor nut Ya is used. In some cases, the distance d between the beam side fixing member 12 and the column X is too wide, and the amount of horizontal movement of the beam Y required to position the beam Y at the target position is the extension pressing force of the jack 40. (Of course, in this case, the beam Y cannot be positioned at a target position).

  In this regard, according to the present invention, by adjusting the protruding length of the shaft 28 with respect to the fixed portion 16, the necessary movement amount of the beam Y can be kept within the range covered by the extension pressing force of the jack 40. Thus, the beam Y can be reliably positioned at the target position.

  The invention described in claim 3 is as follows: “The jack support member 14 includes a locking piece portion 34c inserted into a gap S formed between the column X and the beam Y, a horizontal support portion 34a for supporting the jack 40, And the vertical support portion 34b for connecting the locking piece portion 34c and the horizontal support portion 34a. The jack 40 and the shaft 28 are placed on the horizontal support portion 34a, and the jack 40 is extended and pushed. A guide portion 36 having a substantially V-shaped cross section for guiding the shaft 28 that horizontally moves with the beam Y in a direction away from the column X under pressure is provided.

  According to the present invention, since the guide portion 36 can guide the shaft 28 that horizontally moves together with the beam Y in a direction away from the column X in response to the extension pressing force of the jack 40, the extension pressing force of the jack 40 is reliably applied to the shaft 28. Can be transmitted.

  In addition, since the guide part 36 has a substantially V-shaped cross-sectional shape, the jack core 40 and the shaft core M1 of the jack 28 and the shaft core M1 of the shaft 28 simply by placing the jack 40 and the shaft 28 on the guide part 36. And the folding line 36a of the guide part 36 are arranged on the same plane. If the outer diameter of the shaft 28 is formed to be approximately equal to the outer diameter of the jack 40, the shaft core M2 of the jack 40 and the shaft core M1 of the shaft 28 are completely matched, and the extension pressing force of the jack 40 is applied to the shaft. 28 can be reliably transmitted.

  The invention described in claim 4 is “a beam adjusting jig 60 used for horizontal position adjustment of the beam Y provided on the column X with respect to the column X, and (a) fixed to the beam Y. A beam-side fixing member 12; and (b) disposed between the beam-side fixing member 12 and the column X, one end of which is in contact with the column X, and the other end is in contact with the beam-side fixing member 12. A jack 40 that horizontally moves the beam-side fixing member 12 together with the beam Y in a direction away from the column X by the extension pressing force, and (c) supports the jack 40 and is formed between the column X and the beam Y. And a jack support member 14 having a locking piece portion 34c inserted into the formed gap S ".

  In this invention, when the jack 40 is operated, the beam-side fixing member 12 receives the extension pressing force from the jack 40 and moves horizontally in a direction away from the column X. Since the beam side fixing member 12 is fixed to the beam Y, when the beam side fixing member 12 moves horizontally, the beam Y to which the beam side fixing member 12 is attached also moves horizontally together with the beam side fixing member 12. Thus, the horizontal position of the beam Y with respect to the column X can be adjusted.

  In addition, as an aspect which makes the end of the jack 40 contact | abut to the pillar X, the case where it abuts on the pillar X via the jack support member 14 and the case where it abuts on the pillar X directly can be considered.

  ADVANTAGE OF THE INVENTION According to this invention, the beam adjusting jig which can adjust the position of the horizontal direction of the beam higher than a line of sight easily and reliably, and the structural member for beam adjusting jigs used for this can be provided.

  The present invention will be described below with reference to the drawings. FIG. 1 is a view showing a usage state of a structural member 10 for a beam adjusting jig according to the present invention, and FIG. 2 is a partial detailed view of FIG. FIG. 3 is a perspective view showing the beam adjusting jig constituent member 10 according to the present invention.

  As can be seen from FIGS. 1 to 3, the beam adjusting jig component 10 is used together with the jack 40 to adjust the horizontal position of the beam Y with respect to the column X, and is fixed on the beam side. The member 12 and the jack support member 14 are roughly configured.

  The beam side fixing member 12 is comprised by the fixing | fixed part 16 and the action part 18, as shown in FIGS. 4 is a front view of the beam-side fixing member 12, FIG. 5 is a plan view of the beam-side fixing member 12, and FIG. 6 is a right side view of the beam-side fixing member 12.

  The fixed portion 16 includes a top plate 20, side plates 22, reinforcing ribs 24, and a female screw member 26.

  The top plate 20 is a horizontally long rectangular plate made of a rigid material such as metal, and round holes 20a for inserting bolts are respectively formed at both left and right ends thereof.

  The side plate 22 is a horizontally long rectangular plate material made of a rigid material such as metal, like the top plate 20, and the side plate 22 has one end edge in the short direction (upper end edge in FIG. 4) as the top plate 20. Are fixedly welded to the bottom front end portion (the left side end portion of the lower surface in FIG. 4). In this embodiment, the top plate 20 and the side plate 22 are configured as separate members, and are combined and fixed to each other so as to have a substantially inverted L-shaped cross section. 22 may be formed by bending a metal plate.

  The reinforcing ribs 24 are substantially triangular plate members made of a rigid material such as metal, and the two reinforcing ribs 24 are welded and fixed to the corners of the integrated body of the top plate 20 and the side plate 22 at a predetermined interval. ing.

  The female screw member 26 is a cylindrical member made of a rigid material such as metal, and one end portion in the axial direction (right end portion in FIG. 4) is the front surface of the side plate 22 (the reinforcing rib 24 is attached). It is the surface on the opposite side and is welded to the left surface in FIG. At the center of the female screw member 26, a female screw 26a to which a male screw 30a of a male screw member 30 described later is screwed is provided.

  The action portion 18 includes a shaft 28, a male screw member 30, and a nut 32.

  The shaft 28 is a columnar member made of a rigid material such as metal, and the outer diameter thereof is set to be approximately equal to the outer diameter of the jack body 42 of the jack 40 described later. A male screw member 30 that is screwed into the female screw 26a of the female screw member 26 projects from one axial end portion (right end portion in FIG. 4) of the shaft 28. A nut 32 is screwed on the male screw member 30.

  As shown in FIGS. 7 to 9, the jack support member 14 includes a jack support portion 34 and a guide portion 36. 7 is a front view of the jack support member 14, FIG. 8 is a plan view of the jack support member 14, and FIG. 9 is a right side view of the jack support member 14.

  The jack support portion 34 supports a jack 40 described later, and includes a horizontal support portion 34a, a vertical support portion 34b, and a locking piece portion 34c.

  The horizontal support portion 34a is an elongated rectangular plate made of a rigid material such as metal, and a guide portion 36 described later is welded and fixed to the upper surface thereof.

  The vertical support portion 34b is an elongated rectangular plate made of a rigid material such as metal, like the horizontal support portion, and its longitudinal length (the vertical length in FIG. 7) is jacked to the guide portion 36. These members are appropriately set so that these members do not come into contact with the beam Y when the shaft 40 and the shaft 28 are placed. The vertical support portion 34b may be provided with a fitting hole 56 (see FIG. 9) into which the piston rod 44 of the jack 40 is fitted when the jack 40 is placed on the guide portion 36.

  The locking piece 34c is a plate-like member that is formed by tapering off both corners of the tip, and the jack support member is inserted by inserting the tip into the gap S between the column X and the beam Y. 14 (more specifically, the thickness and length are appropriately set so that the jack support member 14 on which the jack 40 is placed) can be locked.

  In this embodiment, the horizontal support portion 34a, the vertical support portion 34b, and the locking piece portion 34c are configured as separate members, which are combined so as to have a substantially Z-shaped cross section and are fixed to each other by welding. However, these may be formed by bending a metal plate.

  A guide portion 36 is fixed to the horizontal support portion 34a of the jack support portion 34 by welding. The guide portion 36 is a member formed into a substantially V-shaped cross section by bending a rectangular plate made of a rigid material such as metal at the center thereof (of course, two channels cut to a predetermined length are connected to each other) May be combined and welded together in a substantially V-shaped cross section). A fold line 36a is formed at the center of the bottom surface of the guide portion 36 from one end to the other end.

  A recess 36 b is formed at the upper edge of the guide portion 36. The corner of the recess 36 b is rounded so that the arm 46 can be easily guided into the recess 36 b when the jack 40 is placed on the guide portion 36.

  Next, the usage method of the structural member 10 for beam adjusting jigs is demonstrated according to FIG. 1 and FIG. In order to adjust the position of the beam Y in the horizontal direction with respect to the column X using the beam adjusting jig constituent member 10, first, the jack 40 must be prepared.

  Here, the configuration of the jack 40 (here, a hydraulic jack) will be briefly described. The hydraulic jack 40 has a cylindrical jack main body 42 and a jack main body 42 as shown in FIG. The piston rod 44 accommodated and an arm 46 projecting laterally from the jack main body 42 are generally configured. A rotary handle 46a is attached to the arm 46, and when the rotary handle 46a is rotated, the pressure oil stored therein is pushed out (or sucked), and the piston rod 44 is moved against the jack body 42. It is configured to protrude and immerse in the vertical direction on the order of μm (and the extension pressing force of the hydraulic jack 40 is transmitted to the shaft 28 as will be described later).

  The jack 40 configured as described above is placed on the guide portion 36 of the jack support member 14. When the jack 40 is placed on the guide portion 36, the arm 46 is placed so as to protrude from the recess 36 b of the guide portion 36. The beam adjusting jig 60 is a combination of the beam adjusting jig constituent member 10 (the beam-side fixing member 12 and the jack support member 14) and the jack 40.

  Next, the jack support member 14 on which the jack 40 is placed is lifted by hand, and the tip of the locking piece 34 c of the jack support member 14 is inserted into the gap S between the column X and the beam Y. Then, since the jack support member 14 is locked in the gap S between the column X and the beam Y, the jack support member 14 and the jack 40 do not fall to the ground even if the hands are released.

  When attaching the beam-side fixing member 12 to the beam Y, first, the male screw member 30 attached to the shaft 28 is screwed into the female screw member 26 of the fixing portion 16 and the shaft 28 with respect to the fixing portion 16 is inserted. The projecting length of the nut is adjusted to be minimum (at this time, the nut 32 is moved to the shaft 28 side in advance).

  Next, the tip of the shaft 28 of the beam side fixing member 12 is placed on the guide portion 36 and the fixing portion 16 is directed to the bottom surface of the beam Y, and is formed on the round hole 20a of the top plate 20 and the bottom surface of the beam Y. The position of the beam-side fixing member 12 is adjusted so that it matches the existing anchor nut Ya, and is bolted using a bolt 48 separately prepared. Thereby, fixation to the beam Y of the beam side fixing member 12 is completed. Since the protruding length of the shaft 28 is the smallest, there is a gap between the shaft 28 and the jack 40 when the beam side fixing member 12 is fixed to the beam Y.

  When the fixation of the beam side fixing member 12 to the beam Y is completed, the shaft 28 is screwed out and the tip thereof is brought into contact with the jack 40. As a result, the jack 40 has one end (tip of the piston rod 44) in contact with the vertical support portion 34b and the other end (bottom surface of the jack body 42) in contact with the shaft 28.

  Here, since the cross-sectional shape of the guide portion 36 is substantially V-shaped, if the jack 40 and the shaft 28 are placed on the guide portion 36, the axis M2 of the jack 40 and the axis of the shaft 28 will be described. The core M1 and the folding line 36a of the guide portion 36 are disposed on the same plane.

  Moreover, the outer diameter of the shaft 28 is set to be approximately equal to the outer diameter of the jack body 42 as described above. Therefore, the shaft core M1 of the shaft 28 and the shaft core M2 of the jack 40 are completely aligned only by placing the shaft 28 and the jack body 42 having substantially the same outer diameter on the guide portion 36 having a substantially V-shaped cross section. The extension pressing force of the jack 40 can be effectively transmitted to the shaft 28. Depending on the height of the beam Y from the column X (that is, the protruding amount of the level adjusting bolt B), the shaft 28 may not be placed on the guide portion 36 and may float in the air from the guide portion 36. There is also. In such a case, the position of the shaft 28 is lowered by lowering the protruding amount of the level adjusting bolt B, or by engaging a spacer between the fixed portion 16 and the beam Y, so that the guide portion 36 It may be adjusted so that it is placed on the.

  Finally, when the nut 32 is tightened so as to abut against the female screw member 26, the preparation for adjusting the position of the beam Y in the horizontal direction is completed. The nut 32 is tightened so as to contact the female screw member 26 because the effect of the double nut can be expected. That is, when the shaft 28 and the fixing portion 16 are integrated by the effect of the double nut by the nut 32 and the extension pressing force of the jack 40 is transmitted to the fixing portion 16 via the action portion 18, the action portion 18 is configured. In order to prevent an excessive force from being applied between the male screw 30a of the male screw member 30 and the female screw 26a of the female screw member 26 constituting the fixing portion 16 to damage both screw threads. is there.

  When the installation of the beam adjusting jig 60 (the beam adjusting jig constituent member 10 and the jack 40) is completed as described above, the jack 40 is operated to adjust the position of the beam Y in the horizontal direction.

  That is, when the piston rod 44 protrudes by rotating the rotary handle 46a, the extension pressing force is transmitted from the shaft 28 of the action portion 18 to the beam Y via the fixed portion 16, and the beam Y is separated from the column X. Move horizontally (right side in FIG. 2). Since the horizontal position adjustment of the beam Y with respect to the column X is performed by the extension pressing force of the jack 40, it is possible to adjust in the μm order, and an accurate position adjustment can be performed.

  As described above, if the beam Y is moved by a predetermined distance, the horizontal position adjustment of the beam Y with respect to the column X is completed. When the position adjustment work is completed, the rotary handle 46a is rotated in the reverse direction to immerse the piston rod 44, and the beam adjustment jig 60 (the beam adjustment jig component 10 and the jack 40) is moved from the column X or beam Y. Remove.

  In the above-described embodiment, the position adjustment of the beam Y with respect to the column X has been described as an example. However, for example, it can be applied to a wooden column or beam.

It is a figure which shows a use condition. FIG. 3 is a partial detail view in FIG. 2. It is a perspective view which shows the structural member for beam adjustment jigs. It is a front view which shows a beam side fixing member. It is a top view which shows a beam side fixing member. It is a right view which shows a beam side fixing member. It is a front view which shows a jack support member. It is a top view which shows a jack support member. It is a right view which shows a jack support member. It is a figure which shows a jack.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Beam adjusting jig structural member 12 ... Beam side fixing member 14 ... Jack support member 16 ... Fixing part 18 ... Action part 28 ... Shaft 34 ... Jack support part 34a ... Horizontal support part 34c ... Locking piece part 36 ... Guide Part 40 ... Jack 60 ... Beam adjustment jig X ... Column Y ... Beam

Claims (4)

A beam adjusting jig constituent member used together with a jack and used for horizontal position adjustment of a beam provided on a column with respect to the column,
(a) a beam side fixing member fixed to the beam;
(b) It is disposed between the beam-side fixing member and the column, supports a jack that adjusts the distance between the beam-side fixing member and the column, and is inserted into a gap formed between the column and the beam. A beam adjusting jig constituent member, comprising: a jack supporting member having a locking piece portion to be mounted. The beam-side fixing member includes a fixing portion fixed to the beam, and a shaft that protrudes laterally from the fixing portion and that horizontally moves with the beam under an extension pressing force by a jack,
The structural member for a beam adjusting jig according to claim 1, wherein the shaft is attached to the fixed portion so as to be able to approach and separate.   The jack support member connects the locking piece portion inserted into a gap formed between a column and a beam, a horizontal support portion that supports a jack, and the locking piece portion and the horizontal support portion. A jack and the shaft are placed on the horizontal support portion, and the shaft that moves horizontally with the beam in a direction away from the column in response to the extension pressing force of the jack is mounted on the horizontal support portion. The structural member for a beam adjusting jig according to claim 1, wherein a guide portion having a substantially V-shaped cross section for guiding is provided. A beam adjustment jig used for horizontal position adjustment of a beam provided on a column with respect to the column,
(a) a beam-side fixing member fixed to the beam;
(b) The beam-side fixing member is disposed between the beam-side fixing member and the column, one end of which is in contact with the column, and the other end is in contact with the beam-side fixing member. A jack that moves horizontally with the beam in a direction away from the column,
(c) A beam adjusting jig comprising a jack supporting member that supports a jack and has a locking piece portion inserted into a gap formed between the column and the beam.

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