JP7062357B2 - Building construction jigs and building construction methods - Google Patents

Description

The present invention relates to a building construction jig and a building construction method.

Conventionally, in the construction process when constructing a building equipped with steel-framed columns and beams, there is a process of installing beams between two vertically erected columns. In such a beam installation process, there is a case where the space between the two columns constituting the beam installation location is temporarily widened and the beam is arranged between them.

In particular, when a joint structure (face touch structure) in which the end faces of the beams are face-joined to the side surfaces of the columns is adopted, the beams having the same length as the distance between the two columns are used, as described above. It is necessary to work to widen the space between the pillars. Further, it is necessary to repeat the above work according to the number of beams constituting the building.

As a method of widening the space between columns, for example, between two columns, the beam is lifted to the installation location, and the beam is expanded by using an extrusion jack with a guide roller fixed to the upper part of the beam. Has been proposed (see Patent Document 1).

Japanese Unexamined Patent Publication No. 11-81684

However, in the case of the method described in Patent Document 1, since the extruded jack is directly fixed to the beam, in order to use the extruded jack for another beam, the extruded jack must be removed from the installed beam. Therefore, there is a problem that it takes time and effort to construct, and the beam must be lifted and the space between the columns must be expanded by the extrusion jack, and at the same time, the beam must be guided to an appropriate position, which makes the construction work complicated. There is a problem that it is difficult to ensure the safety of the. Further, there is also a problem that the structure is complicated, for example, it is necessary to provide a guide structure for sliding the guide roller on the support column side.

Further, as a simple method of widening the distance between the pillars, for example, there is a method of pulling at least one of the two pillars on which the beam is installed toward the outside by using a chain block or the like. However, in this case, since it is necessary to fix the chain block to the pillars located outside the two pillars that are the beam installation sections, there is no other pillar outside the two pillars that are the beam installation sections. In some cases, there is a problem that it cannot be constructed. In addition, since the force is manually applied using a chain block or the like, the force is small, and if the order in which the beams are installed is incorrect, there is a risk that the distance between the columns cannot be sufficiently widened.

The present invention has been made to solve the above problems, and an object of the present invention is to construct a building in which the construction work can be safely carried out with a simple configuration and the construction efficiency can be improved. It is to provide jigs and building construction methods.

The present invention has been made to solve the above problems, and the building construction jig of the present invention includes a long material and a long material.
A support portion that supports the long material and
It is characterized by including a force portion capable of pressing the long material in the axial direction.

In the building construction jig of the present invention, it is preferable that the support portion includes an off-axis regulating portion that regulates the movement of the long member in a direction other than the axial direction.

Further, in the building construction jig of the present invention, it is preferable that the support portion includes an axial regulation portion that regulates the axial movement of the long member within a predetermined range.

Further, in the jig for building construction of the present invention, it is preferable that the support portion is configured to be removable from the pillar of the building.

Further, in the building construction jig of the present invention, the applied portion is a separate body from the long material, and the axial force when the long material is pressed in the axial direction causes the pillar to be formed. It is preferably held between the long material and the material.

Further, in the building construction jig of the present invention, the support portion includes a first bracket that supports one end side of the long material and a second bracket that supports the other end side of the long material. Prepare,
It is preferable that the first bracket and the second bracket arranged so as to sandwich the pillar from both sides can be fixed by a common fastener.

Further, in the building construction jig of the present invention, when installing a beam between two columns in a building in which the beam is surface-joined to a column or a beam connecting portion provided on the column. It is preferably used to increase the distance between the two pillars.

Further, in the building construction jig of the present invention, the long member is composed of a plurality of members connected in the axial direction.
It is preferable that the axial length of at least one of the plurality of members is an integral multiple of the basic dimensions.

Further, the building construction method of the present invention is a building construction method using the building construction jig described in any of the above.
A support part installation process in which the support part is installed on two adjacent pillars, respectively.
A long material arranging step of arranging the long material and the force portion so that the long material is supported by the pair of the support portions, and a step of arranging the long material.
It is characterized by including a beam installation step of pressing the long member in the axial direction by the force portion and installing a beam between the two pillars while expanding the distance between the two pillars. And.

Further, in the building construction method of the present invention, the distance between the centers of the two pillars is preferably an integral multiple of the basic dimensions.

Further, the building construction method of the present invention may include a step of installing a beam in one beam installation section and then installing the next beam in another beam installation section adjacent in the axial direction of the beam. preferable.

Further, in the building construction method of the present invention, after installing a beam in one beam installation section, the next beam is installed in another beam installation section adjacent in a direction orthogonal to the axial direction of the beam. It is preferable to include.

According to the present invention, it is possible to provide a building construction jig and a building construction method capable of safely carrying out a construction work with a simple configuration and improving construction efficiency.

It is a side view which shows the state which installed the jig for building construction which concerns on one Embodiment of this invention between pillars. FIG. 1A shows a plan view, FIG. 1B is a side view, and FIG. 1C is a front view showing a first bracket in the building construction jig of FIG. 1. FIG. 1A is a plan view and FIG. 1B is a side view showing a second bracket and a hydraulic jack in the building construction jig of FIG. 1. It is a side view which shows the state which provided the 1st bracket and the 2nd bracket on both sides of a pillar. (A) and (b) are diagrams for explaining the beam installation procedure, respectively. (A) shows another example of the long material, and (b) is a view of the joint plate portion of the long material of FIG. 6 (a) as viewed from the axial direction of the long material. ..

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The same reference numerals are given to the common configurations in each figure.

FIG. 1 shows a state in which a building construction jig 1 according to an embodiment of the present invention is arranged between two pillars 2 erected in advance. The building is, for example, an industrialized house having a steel frame, and has a reinforced concrete foundation fixed to the ground and a frame composed of structural members such as columns 2 and beams 3 as the foundation. It is composed of a fixed steel-framed superstructure. The structural members such as columns 2 and beams 3 that make up the frame of the superstructure are standardized in advance, and are manufactured at the factory and assembled at the construction site.

In FIG. 1, the lower beam 3 already installed between the two columns 2 is shown by a solid line, and the upper beam 3 to be installed is shown by a two-dot chain line. The building construction jig 1 of the present embodiment is, for example, a jig for expanding the distance between the two pillars 2 in order to smoothly arrange the beam 3 between the two pillars 2. The building construction jig 1 is basically installed below the beam 3 to be installed, but is not limited to this, and may be arranged above the beam 3 to be installed. ..

In this embodiment, the distance between the centers of the two pillars 2 is set to an integral multiple of the module. The module means a basic dimension that is a design standard in architecture, and a building is configured so that the plane dimension such as the distance between the centers of adjacent columns 2 is an integral multiple of the module. That is, the columns 2 of the superstructure are arranged so that the center positions of the columns 2 coincide with the intersections on the virtual reference lines arranged in a grid pattern at the same pitch as this module in a plan view.

The column 2 is composed of, for example, a seamless (seamless) square steel pipe in a horizontal cross section. A beam joint 2a to which the beam 3 is joined is formed at a predetermined position on the side surface of the column 2, and a bolt hole is formed in the beam joint 2a. The bolt holes of the beam joining portion 2a are formed on the side surfaces of the column 2 which is a square steel pipe in four directions, and the beam 3 can be joined in any of the four directions. The beam 3 connecting the two adjacent columns 2 is composed of, for example, an H-shaped steel 3a and a joining plate 3b made of steel plates welded to both ends of the H-shaped steel 3a. Bolt holes are formed in the joint plate 3b at positions corresponding to the bolt holes formed in the beam joint portion 2a of the column 2. Then, the beam joint portion 2a and the joint plate 3b are rigidly joined by high-strength bolts, so that the column 2 and the beam 3 are surface-joined.

The building construction jig 1 of the present embodiment has a bundle material 10 as a long material, a first bracket 20 and a second bracket 30 as support portions for instructing the long material to be movable in the axial direction, and a length. It is provided with a small hydraulic jack 40 as a force portion that can be pressed in the axial direction while the scale member is supported by the support portion.

The bundle member 10 is composed of, for example, a shaft portion 11 made of a square steel pipe having a size of 100 mm × 100 mm and a plate portion 12 made of a flat steel plate having a thickness of 9 mm welded to both end faces of the shaft portion 11. The length of the bundle member 10 is set shorter than that of the beam 3 by at least the length of the hydraulic jack 40. Further, it is preferable to prepare a plurality of types of the length of the bundle member 10 corresponding to the length of the module of the building and use a length suitable for the distance between the pillars 2.

In FIGS. 2A to 2C, the first bracket 20 is shown by a solid line, and the pillar 2, the bundle member 10, and the like are shown by a two-dot chain line. The first bracket 20 of the present embodiment has a top plate portion 21, a side plate portion 22, a back plate portion 23, and a regulation plate portion 24. In a state where the first bracket 20 is attached to the pillar 2, the top plate portion 21 extends in the horizontal direction, and the upper surface thereof serves as a support surface to support the bundle member 10 from below. The side plate portion 22 extends from both edges of the top plate portion 21 in a direction orthogonal to the top plate portion 21. The back plate portion 23 extends between the pair of side plate portions 22 in a direction orthogonal to the top plate portion 21 and the side plate portions 22. The back plate portion 23 is provided with a through hole 23a.

The first bracket 20 is detachably attached to the pillar 2 by the fastener 25. The fastener 25 is configured to have a bolt that penetrates the through hole 23a of the first bracket 20 and the through hole provided in the pillar 2 together, and a nut that is screwed into the bolt. In this way, when the first bracket 20 is bolted to the pillar 2, the attachment / detachment work is easy, and since it can be firmly fixed to the pillar 2, misalignment and dropping can be prevented. , Has the advantage of improving safety. The method of fixing the first bracket 20 to the pillar 2 is not limited to bolt joining, and for example, a band-shaped member wound around the pillar 2 may be used, or a clamp that sandwiches and holds the pillar 2. Etc. may be used. In this case, the first bracket 20 can be attached to the pillar 2 even if the pillar 2 does not have a through hole.

The pair of restricting plate portions 24 constitute an off-axis regulating portion that regulates the movement of the bundle member 10 in a direction other than the axial direction. Specifically, the restricting plate portion 24 is arranged so as to sandwich the side surface of the bundle member 10 from both sides, and restricts the movement of the bundle member 10 in a horizontal direction other than the axial direction. This makes it possible to prevent the bundle member 10 from falling off to the side. Further, the elongated hole 24a is formed in the regulating plate portion 24, and the longitudinal direction of the elongated hole 24a is configured to be parallel to the axial direction of the bundle member 10.

An insertion member 26 including bolts and nuts can be attached so as to pass through the through hole provided in the bundle member 10 and the elongated hole 24a. As a result, the insertion member 26 can be moved in the longitudinal direction of the elongated hole 24a, so that the bundle member 10 can be moved within a predetermined range in the axial direction with respect to the first bracket 20. In other words, the axial movement of the bundle member 10 with respect to the first bracket 20 is restricted within a predetermined range. That is, the insertion member 26 attached to the elongated hole 24a of the pair of restricting plate portions 24 constitutes an axial restricting portion that restricts the axial movement of the long member within a predetermined range. As a result, it is possible to prevent the bundle member 10 from falling off from the first bracket 20 due to the movement of the bundle member 10 in the axial direction, and to further enhance safety. Further, in the state where the insertion member 26 is attached, the upward movement of the bundle member 10 is restricted, so that the effect of preventing the bundle member 10 from falling off can be further enhanced. The same effect can be obtained even if the bundle member 10 is provided with an elongated hole through which the bolt of the insertion member 26 is passed and the restricting plate portion 24 is provided with a circular through hole.

As shown in FIGS. 3A and 3B, the second bracket 30 has a top plate portion 31, a side plate portion 32, a back plate portion 33, and a regulation plate portion 34, similarly to the first bracket 20. In the second bracket 30, the lengths of the top plate portion 31 and the side plate portion 32 orthogonal to the back plate portion 33 are longer than those of the first bracket 20 in order to arrange the hydraulic jack 40. The back plate portion 33 is provided with a through hole 33a, and the regulation plate portion 34 is provided with an elongated hole 34a. The second bracket 30 can be detachably attached to the pillar 2 by a fastener 25 including a bolt penetrating the through hole 33a. Further, the second bracket 30 supports the bundle member 10 on the upper surface of the top plate portion 31. The second bracket 30 can restrict the axial movement of the bundle member 10 within a predetermined range by the insertion member 26 including the through hole provided in the bundle member 10 and the bolt penetrating the elongated hole 34a. That is, the insertion member 26 attached to the elongated hole 34a of the pair of restricting plate portions 34 constitutes an axial restricting portion that restricts the axial movement of the long member within a predetermined range.

The shapes of the first bracket 20 and the second bracket 30 are not particularly limited as long as they can support the bundle member 10. In the present embodiment, the first bracket 20 and the second bracket 30 are made of a steel plate having a thickness of 2 mm to 3 mm. The first bracket 20 and the second bracket 30 preferably weigh 5 kg or less, more preferably 2 kg or less, and can be easily lifted with one hand, so that it is easier and safer. Construction work can be done. It is preferable that the bundle member 10 has a weight that can be easily lifted by two or one person. Specifically, the weight is preferably 40 kg or less, and more preferably 30 kg or less.

The installation height of the bundle member 10 is preferably 1500 mm to 2000 mm from the upper surface of the already installed beam 3, and according to this, the hand can directly stand at the height of the already installed beam 3. Since it is easy to reach, the installation work can be easily performed.

The hydraulic jack 40 is arranged in a region sandwiched between the pillar 2 and the bundle member 10 above the top plate portion 31 of the second bracket 30, and the central axis of the hydraulic jack 40 and the central axis of the bundle member 10 coincide with each other. Is held like. In the illustrated example, the end surface 42 (tip surface of the piston) on one side of the hydraulic jack 40 is arranged to face the end surface (outer surface of the plate portion 12) of the bundle member 10, and the end surface 43 on the other side faces the side surface of the pillar 2. Will be done. The hydraulic jack 40 may be arranged in the opposite direction. The hydraulic jack 40 is a separate body from the bundle member 10, and is held between the pillar 2 and the bundle member 10 by an axial force when the bundle member 10 is pressed in the axial direction.

The hydraulic jack 40 is a length-changing member whose length in the axial direction can be varied. The hydraulic jack 40 has, for example, an axial length of 150 mm to 200 mm and a pressing force (pushing pressure) of 100 kN, but is not limited thereto. The hydraulic jack 40 is preferably as light as possible, for example, preferably having a weight of 5 kg or less, more preferably 2 kg or less. As the hydraulic jack 40, for example, one that is configured to be able to expand and contract in the axial direction by moving the piston and the piston rod in the axial direction in a cylindrical cylinder can be used.

The hydraulic jack 40 is provided with a hydraulic hose connection portion 41, and supplies hydraulic pressure by connecting a hydraulic hose connected to a hydraulic pressure supply device (not shown) to the connection portion 41. As the hydraulic pressure supply device, for example, a mechanical manual pump, a foot pump, an electric pump, or the like can be used, but the specific configuration is not particularly limited.

The building construction method using the building construction jig 1 will be described below. First, in the support portion installation process, the first bracket 20 is attached to one of the two adjacent pillars 2 which are vertically erected in advance, and the second bracket 30 is attached to the other pillar 2. Install. The first bracket 20 and the second bracket 30 are installed so as to face each other as shown in FIG. Further, the upper surface of the top plate portion 21 of the first bracket 20 and the upper surface of the top plate portion 31 of the second bracket 30 are arranged at the same height.

Next, the bundle member 10 is placed over the first bracket 20 and the second bracket 30, and hydraulic pressure is applied between the end surface (outer surface of the plate portion 12) of the bundle member 10 on the second bracket 30 side and the pillar 2. An arrangement step of arranging the jack 40 is performed. Specifically, one end of the bundle 10 is supported by the first bracket 20 from below, and the other end is supported by the second bracket 30 from below. Then, the insertion member 26 is attached to the elongated hole 24a of the first bracket 20 and the elongated hole 34a of the second bracket 30 so as to penetrate the bundle member 10, respectively. The arrangement of the hydraulic jack 40 is maintained, for example, in a state where the hydraulic jack 40 gripped by hand is held at a predetermined position (forced portion arrangement area). When the applying portion such as the hydraulic jack 40 is joined to the long member such as the bundle member 10 and integrated, the applying portion and the elongated member can be arranged together on the support portion. ..

In the beam installation process, the hydraulic jack 40 is extended and released after the compressive force is applied to the bundle member 10 and the hydraulic jack 40 between the columns 2, so that the hydraulic jack 40 is sandwiched between the bundle member 10 and the column 2. It is held by the axial force in the state. In the force-bearing part arranging process, instead of holding the hydraulic jack 40 by hand, the second bracket 30 is provided with a force-bearing part support structure for supporting the hydraulic jack 40, and the hydraulic jack 40 is supported by the support part. You may.

In the beam installation process, the hydraulic jack 40 is extended and the pillar 2 is expanded so that the distance between the two pillars 2 is larger than the length of the beam 3. In this state, the beam 3 suspended by a crane or the like is arranged so as to be inserted between the beam joints 2a of the two columns 2. Since the distance between the two columns 2 is larger than the length of the beam 3, the beam 3 can be easily arranged between the columns 2.

After that, when the hydraulic jack 40 is reduced, the distance between the two pillars 2 is reduced and the original state is restored, and the beam 3 is sandwiched between the two pillars 2 without a gap. The beam 3 arranged between the two columns 2 is bolted to each column 2.

After shrinking the hydraulic jack 40 in the axial direction, the hydraulic jack 40 is removed. Further, the insertion member 26 is removed, the bundle member 10 is removed from the first bracket 20 and the second bracket 30, and then the fastener 25 is removed to remove the first bracket 20 and the second bracket 30 from the pillar 2. In this way, the building construction jig 1 can be removed.

If there is a next beam installation section where the beam 3 is to be installed, the removed building construction jig 1 is installed on the two pillars 2 constituting the beam installation section. In this way, the building construction jig 1 of the present embodiment can be used repeatedly.

In the support portion installation process, as shown in FIG. 4, the first bracket 20 and the second bracket 30 may be attached (co-sewn) to both sides of one pillar 2 by using a common fastener 25. It is possible. As a result, the first bracket 20 and the second bracket 30 used in the beam installation section adjacent to the beam 3 in the axial direction can be attached and detached at the same time, so that the work efficiency can be improved. Depending on the situation, both of the support portions installed on both sides of the one pillar 2 may be the first bracket 20, or both may be the second bracket 30.

In this embodiment, since the displacement of the bundle member 10 is regulated within a predetermined range by the regulating plate portions 24, 34 and the insertion member 26, for example, buckling occurs due to the compressive force applied to the bundle member 10. Even in such a case, it is possible to surely prevent the bundle member 10 from falling off.

As described above, in the building construction jig 1 of the present embodiment, the construction work is complicated due to the simple configuration including the bundle member 10, the first bracket 20, the second bracket 30, and the hydraulic jack 40. Therefore, it is possible to safely and efficiently expand the distance between the two pillars 2 to install the beam 3.

Further, in the building construction jig 1 of the present embodiment, the first bracket 20 and the second bracket 30 can be easily attached to and detached from the pillar 2 by using the fastener 25, so that the construction work can be performed. More efficient. Further, by reducing the weight of the first bracket 20 and the second bracket 30 to 5 kg or less, it is possible to easily grip the first bracket 20 and the second bracket 30 with one hand, which makes the work easier and further enhances the safety and construction efficiency. From the same viewpoint, the first bracket 20 and the second bracket 30 are more preferably 2 kg or less.

Further, in the building construction jig 1 of the present embodiment, since the hydraulic jack 40 is used, the force-applying capacity is higher than that in the case of manually increasing the distance between the pillars 2 using a chain block or the like. Moreover, it is highly safe and easy to work with. Therefore, safety and construction efficiency can be further improved. Further, even if there is no other pillar 2 on the outside of the two pillars 2 on which the beam 3 is installed, the construction can be performed without any problem. Further, since the hydraulic jack 40 has a high loading capacity, the order of installing the beams 3 in which beam installation section is not restricted, and the beams 3 are installed in the beam installation section in an appropriate order according to the situation of the building. can do. In this way, the degree of freedom in the installation procedure of the beam 3 is increased, so that the work can be performed in a more efficient procedure. For example, as shown in FIG. 5A, after the beam 3 shown by the solid line is first installed, the next beam 3 is installed in the beam installation section adjacent to the beam 3 in the axial direction as shown by the arrow. It shows the construction method. That is, in the case of FIG. 5A, the beam 3 can be installed for each center as shown in each street. When the beam 3 is installed for each center as described above, it is preferable to install the first bracket 20 and the second bracket 30 with a common fastener 25 as shown in FIG. According to this, it is possible to improve the efficiency of installation and removal of the first bracket 20 and the second bracket 30 which are the support portions. Further, after the beam 3 is installed in one beam installation section, each member including the hydraulic jack 40 may be moved to the adjacent beam installation section, so that the movement work of each member becomes easy and efficient. In addition, since the moving distance of the construction worker is shortened, the work efficiency can be improved. Further, when the two second brackets 30 are installed on both sides of the pillar 2 with common fasteners 25, the hydraulic jack 40 used on the second bracket 30 on one side of the pillar 2 is used on the opposite side of the pillar 2. Since it is only necessary to move the hydraulic jack 40 onto the second bracket 30 (on the other side), the moving distance of the hydraulic jack 40 becomes shorter. Further, when the intervals between the columns 2 in the adjacent beam installation sections are the same, the common bundle member 10 can be moved by a short distance and used repeatedly, so that the work efficiency is further improved.

In FIG. 5B, after the beam 3 shown by the solid line is first installed, as shown by the arrow, the next beam is installed in the beam installation section adjacent to (opposite position) in the direction orthogonal to the axial direction of the beam 3. The construction method of installing the beam 3 is shown. Even in such an installation procedure of the beam 3, the common bundle member 10 can be repeatedly moved and used at a short distance, so that the work efficiency is improved.

Further, when the center spacing of the two columns 2 is an integral multiple of the module, each member can be standardized (standardized), and a plurality of beams having the same spacing between the two columns 2 can be standardized. Since the bundle material 10 common to the installation section can be used repeatedly, the number of bundle materials 10 used can be reduced and the construction efficiency can be improved. Further, by standardizing each member in this way, it is possible to use a member common to other buildings similarly standardized, so that the cost can be reduced.

Here, FIG. 6A shows a bundle 50 as another example of the long material. The bundle member 50 is composed of a first member 51 connected in the axial direction by bolt joining and a second member 52. In this way, by forming the bundle member 50 with a plurality of members connected in the axial direction, the length of each member (first member 51 and second member 52) becomes shorter than the entire bundle member 50. Therefore, by transporting and storing in a disassembled state, transportation and storage become easy.

Each of the first member 51 and the second member 52 includes a shaft portion 11 similar to the above-mentioned bundle member 10, and a plate portion 12 welded to one end of the shaft portion 11. Further, a joint plate portion 13 having a through hole 13a for inserting a bolt is welded to the other end portion of the shaft portion 11. Note that FIG. 6B shows a view of the joint plate portion 13 as viewed from the axial direction of the bundle member 50, and the joint plate portion 13 of this example has a through hole 13a on the outside of the shaft portion 11. Are arranged in 8 places. The position and number of the through holes 13a are not limited to this.

As shown in FIG. 6A, the outer surface of the joint plate portion 13 of the first member 51 (the end surface of the first member 51) and the outer surface of the joint plate portion 13 of the second member 52 (the end surface of the second member 52). The bundle member 50 can be formed by surface-contacting with and joining with a fastener 14 such as a bolt and a nut through which the through hole 13a of the joining plate portion 13 is inserted. In the case of such a bolt joint, the work of connecting and disconnecting the first member 51 and the second member 52 becomes easy. The method of connecting the first member 51 and the second member 52 is not limited to bolt joining.

In FIG. 6A, the line C indicated by the alternate long and short dash line is the center line of the pillar 2 serving as the beam installation section, and the distance S between the center lines C of the two pillars 2 is the module as described above. Can be an integral multiple of. L1 is the axial length of the first member 51, and L2 is the axial length of the second member 52. L3 is the distance from one end surface of the bundle member 50 (the outer surface of the plate portion 12 of the second member 52) to the center line C of the pillar 2, and L4 is the other end surface of the bundle member 50 (first member 51). It is a distance from the outer surface of the plate portion 12) to the center line C of the pillar 2.

Here, the length L2 of the second member 52 constituting the bundle member 50 may be a predetermined length (standard length) set in advance, and the length L1 of the first member 51 may be an integral multiple of the module. preferable. In this case, by preparing a plurality of first members 51 having different lengths L1, the first member 51 having an appropriate length L1 according to the interval S of the center lines C of the pillars 2 is selected and used. can do. Further, in this case, the common second member 52 can be repeatedly used regardless of the distance S between the center lines C of the pillar 2. By standardizing the members, it is possible to use members such as the first member 51 and the second member 52 that are common to other buildings similarly standardized, so that the cost can be reduced.

Further, when selecting the first member 51 having an appropriate length according to the distance S between the center lines C of the two pillars 2, the length L2 of the second member 52 and the above-mentioned distance L3 and distance L4 are used. If the sum is an easy-to-calculate integer, the calculation becomes easy. For example, when the sum of the length L2, the distance L3, and the distance L4 is 3000 mm, the length L1 of the first member 51 is represented by "L1 = S-3000". The length L1 of one member 51 can be determined.

The building construction jig and the building construction method according to the present invention are not limited to the configurations of the above-described embodiments, and are realized by various configurations within the scope of the claims. It is possible. For example, in the above embodiment, the case where the beam 3 is directly joined to the side surface (beam joint portion 2a) of the column 2 has been described, but the present invention is not limited to this, and for example, the beam provided on the column is provided. It is also applicable when the beam is surface-joined to the connecting portion. Specifically, the beam connecting portion provided on the column can be a hardware member (bracket) for connecting the beams, which is provided in advance on the side surface of the column by welding, bolt joining, or the like. The beam connecting portion projects horizontally from the side surface of the column, and the beam can be face-joined by bringing the end face of the beam into surface contact with the end face and joining by bolt joining or the like.

Further, in the above embodiment, two types of the first bracket 20 and the second bracket 30 are used as the support portion, but one type of common bracket may be used, for example, the second bracket 30 may be installed on the beam. It may be used for two pillars 2 as a section. Further, the force portion is not limited to the hydraulic jack 40 which is a liquid actuated type, and a mechanical screw jack, a rack drive jack, a pneumatic air jack, or the like may be used. Further, the jig for building construction according to the present invention can be used for widening the distance between two members in various fields.

1 Jig for building construction 2 Pillar 2a Beam joint 3 Beam 3a H-shaped steel 3b Joint plate 10 Bundle material (long material)
11 Shaft (square steel pipe)
12 Plate (steel plate)
13 Joint plate part 13a Through hole 14 Fastener 20 First bracket (support part)
21 Top plate part 22 Side plate part 23 Back plate part 23a Through hole 24 Restriction plate part (off-axis regulation part)
24a Long hole 25 Fastener 26 Insertion member (axial regulation part)
30 Second bracket (support part)
31 Top plate part 32 Side plate part 33 Back plate part 33a Through hole 34 Restriction plate part (off-axis regulation part)
34a Long hole 40 Hydraulic jack (forced part)
41 Connection part 50 Bundle material 51 First member 52 Second member

Claims (12)

A building construction jig used to increase the distance between two pillars when installing a beam between the two pillars.
With long materials
A force unit that can press the long material in the axial direction, and
A jig for building construction , comprising a pair of support portions having a top plate portion that is installed on two adjacent pillars and supports the long lumber and the force portion from below . The building construction jig according to claim 1, wherein each of the pair of support portions includes an off-axis regulating portion that regulates the movement of the long material in a direction other than the axial direction. The building construction jig according to claim 1 or 2, wherein each of the pair of support portions includes an axially restricting portion that regulates the axial movement of the long member within a predetermined range. The building construction jig according to any one of claims 1 to 3, wherein each of the pair of support portions is detachably configured with respect to a pillar of the building. The force portion is a separate body from the long member, and is held between the pillar and the long member by the axial force when the long member is pressed in the axial direction, according to claims 1 to 1. The building construction jig according to any one of 4. A building construction jig used to increase the distance between two pillars when installing a beam between the two pillars.
With long materials
A force unit that can press the long material in the axial direction, and
It is provided with a pair of support portions having a top plate portion that is installed on two adjacent pillars and supports the long member and the force portion from below .
One of the pair of support portions is provided with a first bracket that supports one end side of the long member, and the other of the pair of support portions is provided with a second bracket that supports the other end side of the long member. Prepare,
A building construction jig configured so that the first bracket and the second bracket arranged so as to sandwich the pillar from both sides can be fixed with a common fastener. Used to increase the distance between the two columns when installing the beam between the two columns in a building where the beams are surface-joined to the column or the beam connecting portion provided on the column. The building construction jig according to any one of claims 1 to 6. The long member is composed of a plurality of members connected in the axial direction.
The building construction product according to any one of claims 1 to 7, wherein the axial length of at least one of the plurality of members is an integral multiple of the module which is the basic dimension in the design of the building. jig. A building construction method using the building construction jig according to any one of claims 1 to 7.
A support part installation process in which each of the pair of support parts is installed on two adjacent pillars,
An arrangement step of arranging the long material and the force portion so that the long material is supported by the pair of support portions , and
Building construction including a beam installation step of installing a beam between the two pillars while pressing the long material in the axial direction by the force portion and expanding the distance between the two pillars. Method. The building construction method according to claim 9, wherein the distance between the centers of the two pillars is an integral multiple of the module which is the basic dimension in the design of the building. The building construction method according to claim 9 or 10, further comprising a step of installing a beam in one beam installation section and then installing the next beam in another beam installation section adjacent in the axial direction of the installed beam. The building according to claim 9 or 10, further comprising a step of installing a beam in one beam installation section and then installing the next beam in another beam installation section adjacent in a direction orthogonal to the axial direction of the installed beam. Construction method.

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