JP6403025B1 - Steel column-beam joint structure and wooden structure - Google Patents

Abstract

An object of the present invention is to integrally join a cylindrical structural steel column and a main beam (structural beam) using a beam support provided with a support plate, which is excellent in earthquake resistance and durability, natural disaster and fire Provide wooden structures that are resistant to disasters. The present invention relates to a cylindrical structural steel column 12 erected on a column base 14 of a building foundation 13, a beam receiving member 30 fixed to a side portion of the structural steel column 12, A steel column and beam joint structure characterized by having a main beam 40 provided on a beam receiving metal 30 and the beam receiving metal 30 being integrally provided with a support plate 32 that supports an end of the main beam 40. It is. [Selection] Figure 2

Description

  The present invention relates to a steel column-beam joint structure and a wooden structure that are excellent in earthquake resistance and durability and are resistant to disasters such as fire.

  With the revision of the Building Standards Act of 2000, even if it is a wooden building, if it is a building that satisfies certain standards and performance, it is not subject to restrictions on height and scale, and construction of higher-rise wooden buildings Became possible. In response to the trend of increasing the height of wooden buildings, there is one that allows a three-story wooden house to be built even on a site with a narrow frontage.

  In a three-story wooden building, structural glulam is used for the pillars and beams, and beam receiving hardware is used as a structural structural joint for the joint between the structural pillars and beams. (See Patent Document 1).

Moreover, there is a structure in which a structural member having a large cross section is used for a building of a wooden building, the surface of the structural member is covered with a covering member, and the wooden building has a fireproof structure (see Patent Document 2).
(See Patent Document 2).

JP 2008-88744 A JP 2013-204261 A

  In the member joint structure of a wooden building described in Patent Document 1, in order to attach the beam receiver to the structural column, a large number of fastening bolts and nuts are required for each beam receiver. Moreover, some tightening bolts that attach beam supports to structural columns require both an inner nut and an outer nut, so the number of parts is very large and a large number of manual spaces are required to fix the beam supports. It takes a lot of labor and time and is troublesome.

  Moreover, in the fireproof structure of the wooden building of patent document 2, it arrange | positions so that a covering member may be covered along the side surface and lower surface of a structural beam material, and provision of fire resistance with respect to the structural member of a large cross section A simplified configuration is described. However, in the fireproof structure of a wooden building, only the configuration in which the decorative column is detachably fixed to the structural column is shown, the rigidity of the joint structure between the structural column and the structural beam material is increased, and the earthquake resistance, The necessary configuration for improving durability is not shown.

  The present invention has been made in consideration of the above-mentioned circumstances, and is integrally joined using a beam receiving fixture having a support plate at a joint portion between a cylindrical structural steel column and a main beam (structural beam). It is an object of the present invention to provide a steel column-beam joint structure and a wooden structure that are excellent in earthquake resistance and durability and are resistant to natural disasters and fires.

  Another object of the present invention is to use a wooden structure steel column and a beam receiving bracket provided with a support plate at the joint between a main beam (structural beam) and a high-rise building of three or more wooden floors, For example, the object is to provide a wooden building in which a five-story and six-story wooden building can be constructed.

In order to solve the above-described problems, the present invention provides a cylindrical structural steel column erected on a column base hardware of a reinforced concrete building foundation, and a beam fixed to a side portion of the structural steel column. A receiving member and a wooden structural beam main beam provided on the beam receiving member , the beam receiving member including a base plate fixed to a side surface of the structural steel column and an end of the main beam; The support plate that is received and supported and the guide plate that engages and guides the slit groove at the end of the main beam are integrally formed so as to be orthogonal to each other, and a guide pin is erected on the support plate. On the other hand, a plurality of through holes are formed in the guide plate, and pin holes are formed at positions corresponding to the through holes of the guide plate at the end of the main beam. Front guide hole It engages the guide pin is fit retaining, and a plurality of drift pin is inserted into the through hole of the guide plate from the pin hole, steel columns that retaining fit is by ramen beams characterized in that it consists of a beam Provides a joint structure.

Moreover, in order to solve the above-mentioned problems, the present invention installs column bases in at least four places of a reinforced concrete building foundation, and fixes the bases of cylindrical structural steel columns on the column bases. column base Besupakku placed on top of, said by from the building foundation anchor bolts and nuts which projects through said pedestal hardware and the column base Besupakku fixing the pedestal hardware and the pedestal Besupakku, the structural steel of Columns are erected on the building foundation, beam supports are fixed to the side portions of the floors of the structural steel columns, and wooden structural beams are mounted on the beam supports facing the structural steel columns . and laterally bridged by supporting the main beam, the beam receiving hardware is a base plate which is fixed to the side of the structural steel columns, and the support plate receiving and supporting an end portion of the main beam, the The guide plate that engages and guides the slit groove at the end of the in-beam is integrally configured so as to be orthogonal to each other, and a guide pin is erected on the support plate. A through hole is formed, and a pin hole is formed at each end of the main beam at a position corresponding to each through hole of the guide plate. The main beam has an engagement guide hole that is engaged with the guide pin. combined are fit retaining, and is inserted is fit retaining a plurality of drift pin from the pin hole in the through-hole of the guide plate, wherein the main beam, by the beam receiving device hardware is bonded to the structural steel columns, A wooden structure is provided in which a ramen beam is configured by being placed on a support frame of the beam receiving member.

  The present invention improves the joint strength between a steel column and a beam by using a beam support provided with a support frame at the joint between a cylindrical structural steel column and a main beam (structural beam), and is earthquake resistant. In addition, it is possible to provide a steel column-beam joint structure and a wooden structure that are excellent in durability and resistant to disasters such as fire.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a wooden three-story building according to a first embodiment of a steel column and beam joint structure and a wooden building according to the present invention. The figure which abbreviate | omits and shows the joining structure of the steel column and beam used for the 3-story building of FIG. FIG. 3 is a plan sectional view taken along line III-III in FIG. 2. The perspective view which shows a pedestal stigma hardware. The perspective view which shows a beam receiving metal object. (A) is a fragmentary sectional view which shows the joining structure of a structural steel column and a beam, (B) is a side view which follows the VI-VI line of FIG. 6 (A). The assembly procedure for attaching the beam support and the main beam to the structural steel column is shown. (A) is a perspective view just before mounting the beam support to the structural steel column, and (B) is the structural steel column. The perspective view just before the attachment which attaches a main beam to a beam receiver, (C) is a perspective view which shows the joining structure of the steel column and beam which attached the main beam to the structural steel column via the beam receiver. It explains the pulling function of the guide pin that draws and joins the main beam to the structural steel column using the beam receiver. (A) is the main beam attached to the beam receiver fixed to the structural steel column. The perspective view just before attachment, (B) is explanatory drawing explaining the main beam drawing function of a guide pin. The perspective view which shows the floor panel installed in a wooden building. The perspective view which shows a beam panel. The perspective view which shows a roof panel. (A), (B), and (C) show the modification of 1st Embodiment which concerns on this invention, and are perspective views corresponding to (A), (B), and (C) of FIG. 7, respectively. FIG. 5 is a diagram showing a wooden four-story building, which is a second embodiment of a steel column-beam joint structure and a wooden building according to the present invention. The longitudinal cross-sectional view of the center part of the wooden building which abbreviate | omits and shows the inside of the building of a middle floor from a wooden building. FIG. 14 is a plan sectional view taken along line XV-XV in FIG. 13. FIG. 15 is a plan sectional view taken along line XVI-XVI in FIG. 14. The table | surface which shows the fireproof specification example of a wooden building. A table showing the burnout of columns and beams in wooden and semi-refractory buildings. The longitudinal cross-sectional view inside the building which shows the modification of 2nd Embodiment of a wooden building.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[First Embodiment]
FIG. 1 is a front view showing a wooden three-story building according to the first embodiment of the present invention.

  A wooden three-story building can be used to build a three-story wooden building 10 by effectively utilizing the site, regardless of the size of the site, even in a narrow site. The three-story wooden building 10 can make the first floor part of the built-in garage 11 that was difficult in a wooden house built in a narrow area, and the first floor part can also be used as a store space that is fully open.

  The wooden building 10 is a building of a conventional shaft assembly method showing an example in which the first floor portion is a built-in garage 11. In the wooden building 10, as an example, square steel structural steel columns 12 are erected at at least four corners of a building site. The steel column 12 is configured as a structural through column (main column), and a rectangular plate-shaped column base 14 is installed on a building base 13 in the site.

The building base 13, as shown in FIGS. 2 and 3, the building foundation is constructed with reinforced concrete that pedestal main reinforcement 15 and deformed bars are Haisuji, a plurality of anchor bolts 16 are embedded in the building base 13 For example, it protrudes by four. The anchor bolt 16 protrudes from the column base hardware 14 through the column base pack 17 and is fastened by a fastening nut 18. The fastening nut 18 is constituted by, for example, a double nut for preventing the locking.

  The column base pack 17 is integrally fixed to the base (bottom) of the structural steel column 12, and the steel column 12 is placed on the column base metal 14 of the building base 13 by erecting the structural steel column 12. It is tightened firmly. The structural steel column 12 is firmly fastened by a plurality of (four) anchor bolts 16 and fastening nuts 18 via a column base metal 14 and a column base pack 17 and is erected.

  The structural steel column 12 is composed of square columnar steel column elements 12a, 12b, and 12c that form blocks for each floor of the building. Each of the steel column elements 12a, 12b, and 12c are sequentially stacked in an upright state to be integrated, and a through column is erected. The steel column elements 12a, 12b, and 12c are seamless, commercially available prismatic steel columns. The column sizes of the steel column elements 12a, 12b, and 12c are 120 mm square to 300 mm square × 3000 mm, and a wall thickness of 6 mm to 16 mm. As an example, a structural steel column having a 200 mm square × 3000 mm and a thickness of several mm (for example, 9 mm) is used.

  The structural steel column 12 includes a steel column element 12a corresponding to the first floor of the building and a steel column element 12b on the second floor of the building, and a steel column element 12b on the second floor of the building and a steel column element 12c on the third floor of the building. Between them, rectangular steel expansion preventing plates 20a and 20b (plate thicknesses of 10 mm to 20 mm) are interposed, fixed by fastening means such as welding, and integrated. The expansion preventing plates 20a and 20b are provided with a node portion for each floor of the rectangular tubular structural steel column 12, thereby further improving the rigidity and strength of the rectangular cylindrical steel column 12. The spread prevention plates 20a and 20b are the bottom of the steel column element 12b on the second floor of the building (or the top of the steel column element 12a on the first floor of the building) and the bottom of the steel column element 12c on the third floor of the building (or the steel frame of the second floor of the building). The top of the column element 12b) is processed with high accuracy in a quality-controlled factory, and is integrally attached in advance. An expansion preventing plate 20c (see FIG. 6A) is provided in the middle of each steel column element 12a, 12b, 12c, and the intermediate expansion preventing plate 20c provides rigidity in the middle of the structural steel column 12. The strength may be further improved.

  Further, as shown in FIG. 2, the structural steel column 12 constitutes a through column, and a steel top plate 21 that also serves to prevent expansion is integrally fixed to the top of the steel column element 12c on the third floor of the building. Is done. On the top plate 21, the base plate 23 of the column base metal fitting 22 shown in FIG. The column base 22 is fixed to the top plate 21 by welding or the like, and a small column or bundle 25 is fixed to the standing guide plate 24 with a drift pin or the like. In addition, after the structural steel pillar 12 is erected on the building site, the concave portion of the building base 13 is backfilled, and the building site is leveled with the ground.

  An upper frame and a head joint (not shown) are laid horizontally on a small pillar or bundle 25 of the wooden building 10, and a roof panel 26 is laid on a known climbing beam (not shown) to constitute a roof 27. In this wooden building 10, an attic room 28 is formed under the roof panel 26. Since there is no need to provide pillars or bundles in the attic room 28, a large storage space can be secured.

As shown in FIGS. 1 and 2, the structural steel column 12 is formed by welding or bolting the beam receiving hardware 30 on two or three orthogonal side surfaces on the upper side of each steel column element 12a, 12b, 12c on each floor of the building. It is fixed and assembled in the factory in advance by fastening means such as. The beam receiver 30 is configured as shown in FIG. 5, and includes a base plate 31 fixed to the upper side of each floor of the building of the structural steel pillar 12 by welding, bolting, or the like, and a horizontal direction from the lower or bottom of the base plate 31. The extended support plate 32 and the guide plate 33 that rises from the support plate 32 and extends along the base plate 31 intersect with each other in an orthogonal direction to form a cast product.

  A guide pin 34 as a rocket pin rising from the front side of the center portion of the support plate 32 is fixed along the both side surfaces of the guide plate 33. A plurality of through holes 36 through which drift pins 35 (described later) are inserted are formed in the guide plate 33 of the beam receiver 30, and a plurality of through holes openings 37 are also formed in the base plate 31. The beam receiving metal 30 is exemplified by an example of being fixed to the side surface of each floor of the building of the structural steel column 12 by welding. However, the beam receiving metal 30 is structured with a bolt or the like using the opening 37 of the base plate 31. You may fix to 12 side surfaces.

  Furthermore, in the wooden building 10, as shown in FIG. 1, a main beam 40, which is a wooden structural beam, is horizontally mounted between the structural steel columns 12 and 12 facing each other. The main beam 40 is composed of a firewood material, a structural laminated material of wood having a large cross section, or a composite material of non-combustible material and wood. For structural laminated timber, dry wood (natural wood) such as firewood, cedar, rice pine, karamatsu, etc., and dry it to a moisture content of 15% or less. It is the one that is overlapped and bonded using an adhesive. For the main beam 40, a structural laminated material having a beam width (W) × beam height (H) having a large cross section, for example, is used. The structural laminated material has a width dimension (W) × height dimension (H) of 105 mm (˜240 mm) × 240 mm (˜600 mm), and is manufactured while maintaining a dimensional relationship of W <H. For example, a main beam 40 having a large cross section with a beam width (W) × beam height (H) of 120 mm × 300 mm, 120 mm × 380 mm, 120 mm × 450 mm (or 105 mm × 300 mm, 105 mm × 380 mm, 105 mm × 450 mm) is used. It is done. A fireproof covering material (not shown) made of a laminated material having a plate thickness of 45 mm or a solid material having a plate thickness of 60 mm is provided on both sides of the main beam 40 for fireproofing for 1 hour.

  The main beam 40 is a ramen beam as a structural beam. If the main beam 40 is made of structural laminated material or composite material having a large cross section, the surface of the laminated material or composite material will be burnt in the event of a fire. A carbonized layer is formed, and this carbonized layer serves to cut off the supply of oxygen and stop further combustion. Since the surface of the main beam 40 is only burned, the strength as a structural material can be maintained, and the collapse of the building can be delayed and prevented.

  In the wooden three-story building shown in FIG. 1, for example, the main beam 40 on the first floor of the building uses a 120 mm × 450 mm cross-section structural laminate, and the second and third floors of the building are 120 mm × 390 mm, 120 mm × A structural laminate with a 300 mm cross section is used. The three-story building is configured such that the beam height (H) of the main beam 40 gradually decreases from the main beam 40 on the first floor of the building toward the upper floor. For the main beam 40 on each floor of the building, for example, a structural laminated material having a large cross section is used as a ramen beam.

  The wooden structural laminated material used for the main beam 40 has higher rigidity and strength than natural mukwood, and the interior is always kept dry, so it is less susceptible to moisture and humidity, and warps and distortions. Stable quality structural beams with little cracking are retained for a long time.

  As shown in FIGS. 1, 2, and 6 to 8, the main beam 40 made of structural lumber made of natural wood constitutes a structural beam of a ramen beam. As the structural beam of the main beam 40, a rigid beam having a beam length of 3600 mm or 5400 mm is used as a standard material.

The joint structure of the main beam 40 and the structural steel column 12 (12a, 12b, 12c) is assembled as shown in FIGS. 7 (A), (B) and (C).

  First, as shown in FIG. 7 (A), the beam support 30 is fixed to the upper side of each floor of the building of the structural steel column 12 (12a, 12b, 12c) by fastening means such as welding. Actually, the steel column elements 12a, 12b, and 12c to which the beam receiver 30 is fixed are manufactured in advance at a factory with high accuracy. As shown in FIG. 7B, the main beam 40, which is a structural ramen beam, is pressed against the beam support 30 fixed to the structural steel column 12 (12a, 12b, 12c) and dropped. Are joined.

  When the end portion of the main beam 40 is joined to the beam receiver 30, as shown in FIGS. 8A and 8B, a slit groove 43 formed in advance by a pre-cut machine in a factory is formed above the guide plate 33. The engagement guide hole 44 of the main beam 40 is engaged with the distal end side of the guide pin (rocket pin) 34 of the beam receiver 30 and is maintained in this engagement state. As the main beam 40 is guided and dropped by the guide pin 34, the end of the main beam 40 is slid onto the support plate 32 while being pulled toward and pressed against the base plate 31 side of the beam receiver 30. And is held stably.

The main beam 40 is pulled and dropped toward the structural steel column 12 (base plate 31) side while the engagement guide hole 44 is engaged and guided by the guide pin 34 of the beam receiving member 30 , thereby the beam. The support 30 is in contact with and supported on the support plate 32 of the receiving piece 30. At that time, a plate receiving groove 45 is formed at the bottom of the end portion of the main beam 40, and when the main beam 40 is supported on and supported on the beam receiving metal 30, the bottom surface of the main beam 40 is the surface of the beam receiving metal 30. The support plate 32 is configured to be flush with the bottom surface of the support plate 32, and the aesthetic feeling of the joint structure between the beam receiving metal 30 and the main beam 40 is maintained.

  The end of the main beam 40 is placed on the structural steel column 12 on the support plate 32 of the beam support 30 and is secured by the guide pins 34, as shown in FIG. The drift pin 35 is struck and joined together, and the main beam 40 is firmly and stably joined to the rectangular tubular structural steel column 12 to form a rigid beam constituting the structural beam.

  At the end of the main beam 40, pin holes 46 are formed at positions corresponding to the through holes 36 of the guide plate 33 (of the beam receiver 30). In a state where the main beam 40 is supported by the beam receiver 30 of the structural steel column 12, a plurality of drift pins 35 (see FIG. 8) are hit from one side of each pin hole 46 to prevent the main beam 40 from being removed. In practice, the main beam 40 is firmly coupled to the rectangular steel structural steel column 12 (12a, 12b, 12c).

  Further, the main beam 40 on each floor of the building and the upper surface of the floor beam are joined to each other so that the floor beam (not shown) is joined via a beam receiving bracket (not shown) so as to be orthogonal to the main beam 40. A structural floor panel 48 shown in FIG. 9 is laid on the floor beam. By laying the structural floor panel 48, the wooden building 10 has a floor surface of the second floor or more of the building.

  In this way, as shown in FIG. 1, the main beam 40 on each floor of the building uses the beam receiving hardware 30 on the rectangular tubular structural steel column 12 (12a, 12b, 12c) whose both ends are opposed to each other. Are combined together to form a rigid joint structure, which constitutes a structural beam. The main beam 40 is made of a structural laminate of natural wood having a large cross section, and the main beam 40 is fixed to the structural steel column 12 by using the beam receiving metal 30 on the structural steel column 12 to form a portal ramen structure. By setting it as the wooden building 10, joint strength can be improved and an earthquake resistance and durability can be improved.

Furthermore, the wooden structure 10 of Jikukumi structure used in the first embodiment, the column base hardware 14 was fabricated by casting the material of the spherical graphite cast iron (ductile) or the like column base stigma hardware 22 and the beam receiving hardware 30 castings Products and steel products are used.

  Further, the wooden building 10 shown in FIG. 1 has a shaft structure in which a main beam 40 of a large-sized wooden structural beam is integrally joined to a beam receiving fixture 30 fixed to a square steel tubular structural column 12. It is a building composed of a panel assembly structure supported by the panel 48, the wall panel 49 and the roof panel 26. In particular, a floor panel (48) is constructed in such a manner that a main beam 40 having a large cross section is integrally joined to a beam receiving bracket 30 fixed to a structural steel column 12 firmly erected on a column base metal 14 of a building base 13. ) And a box assembly structure supported by the wall panel (49) is constructed in the building.

  As the floor panel 48, as shown in FIG. 9, a structural floor panel having a thickness of about 10 mm (for example, 28 mm) having a strength about 10 times that of the conventional shaft assembling method is adopted. It is installed on a beam (not shown). The panel dimensions of the floor panel 48 are, for example, a thickness of several tens (28) mm and length and width of 3000 (3600, 2720, 2000, 1820) mm × 1220 (1000, 910) mm. The floor panel 48 is a structural floor panel having strength to withstand heavy objects such as a piano.

  Further, the wall panel 49 and the roof panel 26 are heat insulating panels in which a heat insulating material 50 such as hard urethane or polystyrene foam is integrated and covered with a wooden board 52. Reference numeral 53 denotes a timber or a pipe column. The wall panel 49 is pre-cut according to the opening of a window or the like, and the floor panel 48 according to the column position.

  Further, the roof panel 26 is obtained by sandwiching a heat insulating material 50 between two structural plywoods 54 and 54. The roof panel 26 is precut according to the engagement of the roof 27. In particular, a precut machine (not shown) for the roof panel 26 can cut a three-dimensional shape and can cope with a complicated roof shape. Reference numeral 55 denotes a crosspiece.

  Thus, the floor panel 48, the wall panel 49, and the roof panel 26 are precut in advance into a complicated shape by the precut machine.

  Then, the wooden three-story wooden building 10 shown in FIG. 1 is attached to the rectangular tubular structural steel column 12 firmly standing on the column base 14 of the building base 13 as described above. A receiving bracket 30 is fixed in advance, and a shaft assembly in which a main beam 40 having a large cross section, which is a structural beam (ramen beam), is integrally joined to the beam receiving bracket 30 is used as a floor panel 48 and a wall panel 49 or a roof panel 26. The box structure is supported by To date, in many destructive tests and public large earthquake resistance tests at the National Research Institute for Earth Science and Disaster Prevention, there were more than twice as many earthquakes (1600 gal) as the Great Hanshin-Awaji Earthquake and storms in the Isewan typhoon class (60 m / sec) Is known to withstand For example, a structural panel 51 having a thickness of 9 mm and a heat insulating material 50 made of hard urethane having a thickness of 50 mm are used as the wall panel 49 and have a wall magnification of 2.9 times.

  Further, the main beam 40 is integrally joined to the structural steel column 12 by the beam receiver 30. The support plate 32 integrated with the beam receiving member 30 ensures the positioning of the lower end portion of the main beam 40 and stably holds the main beam 40, so that the joint between the structural steel column 12 and the main beam 40 is provided. The shearing force is increased, the main beam 40 around the beam receiver 30 is prevented from cracking, and the initial rigidity of the shaft assembly and the restoring force after the earthquake are increased.

  Furthermore, since the support plate 32 of the beam receiver 30 can close the lower portion of the slit groove 43 of the main beam 40 and take a fire-stop measure, it can prevent the spread of flames in the event of a fire, and the fire-stop effect makes the wooden structure It has been confirmed that the building 10 can be prevented from collapsing. The wooden building 10 in which the structural steel column 12 and the main beam 40 of the structural beam are integrally joined using the beam receiving metal 30 is excellent in earthquake resistance and durability, and becomes a building resistant to fire and earthquake disasters. .

[Modification of First Embodiment]
In the wooden building 10 according to the first embodiment, the beam receiver 30 is fixed to the side surface of the rectangular steel structural column 12 by welding or the like, and the main beam 40 of the structural beam is integrally attached to the beam receiver 30. Although the example of the joined building was shown, the beam receiving recess 58 is formed on the side of the rectangular tubular structural steel column 12 that is firmly erected on the column base 14 of the building base 13 of the wooden building 10. The base plate 31 of the beam receiving hardware 30 may be fitted into the beam receiving recess 58 and bolted, or the periphery of the plate may be fixed integrally by welding or the like. (FIG. 12B).

  As shown in FIG. 12B, the end of the main beam 40, which is a structural beam, is brought close to the beam support 30 fixed to the structural steel column 12 having a rectangular tube shape, and dropped downward, so that the main beam 40 Is guided by the guide pin 34 and is lowered and supported on the support plate 32, and is joined as shown in FIG. Thereafter, by driving a plurality of drift pins 35 from the pin holes 46, the main beam 40 is integrally coupled to the beam receiver 30 and is firmly joined to the structural steel column 12.

  Since the other structure of the wooden building 10 is not different from that shown in FIG. 1 to FIG.

[Second Embodiment]
Next, a second embodiment of a steel column-beam joint structure and a wooden building applied to a high-rise building will be described with reference to the accompanying drawings.

  FIG. 13 shows an example in which the second embodiment of the wooden building according to the present invention is applied to a four-story wooden building, and FIG. 14 shows the building on the middle floor from the wooden building shown in FIG. It is a longitudinal cross-sectional view of the center part of the wooden building which abbreviate | omits the inside and is shown.

  In the wooden building 60 shown in FIGS. 13 and 14, for example, a prismatic structural steel column 61 is erected as a structural column. The structural steel column 61 is configured as a through column of a main column, and a rectangular plate-shaped column base 64 is installed on a building base 63 in the site. As shown in FIGS. 15 and 16, the building base 63 is made of reinforced concrete with deformed reinforcing bars and column base reinforcing bars 65, and there are a plurality of anchor bolts 66 embedded in each building base 63, for example, four. It protrudes one by one. The anchor bolt 66 protrudes through the column base metal 64 and the column base pack 67 at the base of the structural steel column 61, and is fastened by a fastening nut 68. The fastening nut 68 is formed of a double nut to prevent loosening.

  The structural steel column 61 is constructed integrally by sequentially stacking steel column elements 61a, 61b, 61c, 61d in a block shape for each floor of the building, and a through column is erected. The columnar dimensions of the steel column elements 61a to 61d are rectangular cylindrical steel column elements having a rectangular cross section of 120 mm square to 300 mm square and a length of about 3000 mm and a wall thickness of several mm to 10 several mm. As an example, the steel column elements 61a to 61d are composed of seamless square cylindrical steel columns having a 250 mm square, a thickness of 9 mm, and a length of 3000 mm.

  The structural steel column 61 includes a steel column element 61a corresponding to the first floor of the building and a steel column element 61b on the second floor of the building, and a steel column element 61b on the second floor of the building and a steel column element 61c on the third floor of the building. Between the steel column element 61c on the 3rd floor of the building and the steel column element 61d on the 4th floor of the building, rectangular steel spread prevention plates 70a, 70b, 70c (thickness 10 mm to 20 mm) are interposed. And integrated and fixed by fastening means such as welding. The expansion preventing plates 70a, 70b, and 70c form a node portion for each floor of the square cylindrical structural steel column 61 to improve the rigidity and strength of the rectangular cylindrical structural steel column 61.

  The expansion prevention plates 70a, 70b, 70c are quality controlled factories on the bottom of the steel column elements 61b, 61c, 61d on the second, third and fourth floors of the building or on the top of the first, second and third floors of the building. Are processed with high accuracy by welding or the like, and fixed in advance.

  Further, as shown in FIG. 3, the structural steel column 61 is integrally fixed with a steel top plate 71 that also serves to prevent the spread at the top of the steel column element 61d on the fourth floor of the building. On this top plate 71, the base plate of the column base metal fitting 72 is installed. The column base 72 is fixed to the top plate 71 by welding or the like. Similar to the column base 22 shown in FIG. 2, the small column or bundle 74 is drift pin on the guide plate on which the column base 72 is erected. Etc., and fixed upright.

  An upper frame and a head joint (not shown) are laid on the small pillars or bundles 74 of the wooden building 60, and the roof panel 26 (FIG. 11) is laid on a known climbing beam (not shown) to constitute a roof 75. Is done.

  As shown in FIGS. 13 and 14, a base 76 is laid on the building base 63. The foundation 76 is fastened by anchor bolts 77 and nuts onto a building base 63 made of reinforced concrete, and is fixed integrally by bolting. The foundation 76 is provided with floor beams and trunk differences (not shown), and the floor panel 48 shown in FIG. 9 is installed on the floor beams and trunk gaps.

  The structural steel column 61 shown in FIGS. 13 and 14 has a beam receiving fixture 80 fixed to each upper side surface of each steel column element 61a, 61b, 61c, 61d on each floor of the building by fastening means such as welding or bolts. The When the structural steel column 61 is located at the corner of the wooden building 60, the beam receiver 80 is formed on two orthogonal side surfaces on the upper side of each of the steel column elements 61a, 61b, 61c, 61d on each floor of the building. When located in the middle of the building of the wooden building 60, it is located on the three upper side surfaces of the steel column elements 61a, 61b, 61c, 61d excluding the outer side, and inside the building of the wooden building 60. In this case, the steel column elements 61a, 61b, 61c, 61d are respectively fixed to the upper side 4 side surfaces. The beam receiver 80 has the same shape and structure as the beam receiver 30 shown in FIG. 5, and is fixed to the upper side surface of each floor of the building of the structural steel column 61 by welding or the like. Similar to the beam receiver 30 shown in FIG. 5, the beam receiver 80 is a cast product or steel product in which a base plate, a support plate, and a guide plate intersect with each other in an orthogonal direction.

  Similar to the beam receiving member 30 shown in FIG. 5, the beam receiving member 80 fixed to the structural steel column 61 in FIG. 13 is provided with a through hole and an opening through which guide pins and drift pins are passed.

  Moreover, in the wooden building 60, as shown in FIG. 13 and FIG. 14, the main beam 81 which is a wooden structural beam is horizontally mounted between the structural steel pillars 61 and 61 which oppose. The main beam 81 is composed of a natural laminated structural material of natural wood having a large cross section or a composite material of non-combustible material and wood, like the main beam 40 shown in the first embodiment. The structural laminated lumber is dried to a natural wood board and a moisture content of 15% or less, and several to ten or more boards, for example, ten boards, are laminated, and an adhesive such as an epoxy resin is used. It is glued. The structural laminated material may be obtained by bundling a large number of prismatic rods and bonding them in a prismatic shape with an adhesive.

  The main beam 81 is made of, for example, a structural laminated material having a large cross section of beam width (W) × beam height (H). Beam width (W) x beam height (H) of the structural laminated material is a structural beam having a beam dimension (W x H) of 105 mm (-180 mm) x 300 mm (-600 mm) while maintaining a dimensional relationship of W <H. Are selectively used.

  In the four-story wooden building 60 shown in FIG. 13, for example, the main beam 81 on the first floor of the building uses a 120 mm × 600 mm large cross-section structural laminated timber, and the second floor, the third floor, and the fourth floor of the building. Are used for structural laminates with large cross-sections of 120 mm × 450 mm, 120 mm × 380 mm and 120 mm × 300 mm, respectively. The four-story wooden building 60 is configured such that the beam height (H) of the main beam 81 gradually decreases from the main beam 81, which is a structural beam on the first floor of the building, toward the upper floor. For the main beam 81 on each floor of the building, a structural glulam with a large cross section is used as a structural beam (ramen beam).

  Further, as shown in FIG. 14, a floor beam 82 is joined to the main beam 81 on each floor of the building so as to be orthogonal to each other through a beam receiver (not shown), and the upper surfaces of the main beam 81 and the floor beam 82 are flush with each other. (Planar). A structural floor panel 48 shown in FIG. 9 is laid on the main beam 81 and the floor beam 82 of each floor of the building. On the main beam 81 and the floor beam 82 on the fourth floor (top floor) of the building, a floor panel 83 that is thinner than the structural floor panel 48 and has a thickness of, for example, about 20 mm is laid to form a ceiling back room 84. The

  A wooden building 60 shown in FIG. 13 and FIG. 14 has a frame structure in which a main beam 81 of a large-sized wooden structural beam is integrally joined to a beam receiving fixture 80 fixed to a rectangular steel structural steel column 61. It is a building. A wooden building 60 of a four-story building has a panel assembly structure supported by the structural floor panel 48 and floor panel 83 shown in FIG. 9, the wall panel 49 shown in FIG. 10, the roof panel 26 shown in FIG. The building. In particular, a shaft in which a main beam 81 having a large cross section is integrally joined to a beam support 80 fixed to a structural steel column 61 firmly fixed to a column base metal 64 of a building base 63 by a rigid beam constituting the structural beam. A box assembly structure supported by a structural floor panel (48) and a wall panel 49 is constructed in the building.

  The structural floor panel 48, the attic floor panel 83, the wall panel 49, and the roof panel 26 are pre-cut into a three-dimensional shape by a three-dimensional pre-cut machine (not shown). The structural floor panel 48 is pre-cut at each column position of the structural steel column 61, and the wall panel 49 is pre-cut according to an opening such as a window. In this way, the structural floor panel 48, the floor panel 83, the wall panel 49, the roof panel 26, and the like are pre-cut into a complicated shape by a pre-cut machine with high accuracy in a quality-controlled factory.

  Further, in the four-story building of the wooden building 60, the square cylindrical structural steel column 61 standing around the outer wall of the building has at least a fireproof covering material 85 or a decorative board made of acrylic resin or the like on the building interior side. Glued with an adhesive and coated. Furthermore, the structural steel column 61 erected inside the four-story building is covered with a fire-proof covering material 85 or a decorative board with an adhesive from the outside over the entire peripheral surface. The fireproof covering material 85 also serves as a decorative board.

  Moreover, the fireproof covering material 85 is comprised by a commercial item, and is adhere | attached with the adhesive agent on the structural steel pillar 61, a wooden main beam, etc., and is used in a covering state. As a commercially available one hour fireproof covering material, structural steel column 61 includes, for example, CLION ACE BOARD (FD060CN-9405) manufactured by Clion Co., Ltd., Heberlite (FP060CN-945) manufactured by Asahi Kasei Construction Materials Co., Ltd., Sumitomo There is a fire-proof coating material 85 such as Siborex (FP060CN-9405) manufactured by Metal Mining Cibolex.

  Furthermore, there is a fireproof and fireproof covering material as a fireproof 1 hour covering material for wooden pillars, beams, floors and walls of the wooden building 60. The fireproof covering material is composed of two or more reinforced gypsum boards and a thickness of 42 mm or more stacked on both sides.

  By the way, according to the Building Standard Law, timber approved for “1 hour fire resistance” can be used for buildings up to 4 stories, and “2 hour fire resistance” can be used for buildings up to 14 stories. The fireproof specifications in the building standard law for general wooden buildings (of high-rise buildings) are used according to the floor of application of the building, and a suitable fireproof time is defined as shown in FIG.

  Further, the burn-in depth of pillars and beams of semi-refractory buildings and general wooden buildings is defined as shown in FIG. 18 (S62 Building No. 1902, Revision H16 National Notification No. 333).

  When laminated or laminated materials are used, the column and beam burnout of the semi-refractory building is 45 mm for 1 hour fire resistance and 35 mm for 45 minutes fire resistance. The pillars and beams of ordinary wooden buildings have a fire resistance of 30 minutes and 25 mm.

  By the way, in the four-story wooden building 60 shown in the second embodiment, each structural steel column 61 erected on the building base 63 is connected to the column base hardware 64 and the column base pack 67 and a plurality ( The four bolts are fastened using the anchor bolts 66 and the fastening nuts 68, and are erected. In the standing structural steel column 61, the main beam 81 of the structural beam is joined to and integrated with the fixed beam receiving member 80 in the same manner as the wooden building 10 shown in the first embodiment.

  Each structural steel column 61 is a base portion of the building base 63, and even if it receives a pulling force due to a natural disaster such as an earthquake or a typhoon, the building base 63 has a column base 64, a column base pack 67, and a plurality (four). The bolts are tightened with an anchor bolt 66 or the like, and firmly fixed.

  The main beam 81 having a large cross section, which is a structural beam, is firmly joined to the structural steel column 61 using a fixed beam receiving member 80 and integrated. Moreover, the beam receiver 80 supports the end of the main beam 81, which is a structural beam, by placing it on the support plate. The support plate of the beam receiver 80 closes the lower part of the slit groove of the main beam 81 guided by the guide plate of the beam receiver 80. Therefore, in the unlikely event of a fire, the support plate of the beam receiver 80 blocks the slit groove of the main beam 81, and the fire stop effect acts, so that the main beam 81 can be prevented from falling and the building can be prevented from collapsing. can do. Furthermore, since the steel column elements 61a to 61d adjacent to each other on each floor of the building are fixed integrally with the spread prevention plate, the structural steel column 61 has a node portion on each floor of the building. Since it is prevented from opening, rigidity and strength can be improved.

  Further, the structural steel column 61 in the form of a square tube and the main beam 81 of the structural beam are firmly joined via a beam receiving fixture 80, and the beam receiving fixture 80 is connected to the structural steel column 61 and the main beam 81. The shearing force of the joint portion can be increased. The beam receiver 80 can prevent the main beam 81 from cracking, and can increase the initial rigidity of the frame structure and the restoring force after the earthquake.

  In addition, the four-story wooden building 60 shown in FIG. 13 and FIG. 14 is a rectangular tubular structural steel column fastened with anchor bolts 66 and fastening nuts 68 on the column base metal 64 of the building base 63. 61 is erected, and a main beam 81 having a large cross section is joined to a beam receiver 80 fixed to the structural steel column 61. Therefore, the structural steel column 61 fastened on the column base metal 64 of the building base 63 and the wooden building 60 including the main beam 81 joined to the structural steel column 61 by the beam receiving member 80 are subjected to a strong earthquake. It is possible to provide a wooden building with anti-vibration resistance and durability.

  Therefore, even if the four-story building is used as the wooden building 60, a building having durability and earthquake resistance can be provided in the same manner as the three-story wooden building 10 shown in the first embodiment. In addition, as the Public Building Timber Utilization Promotion Law came into effect in 2010, the number of wooden public facilities has increased, and not only three-story buildings in wooden buildings 60 but also 4 The number of floor buildings is increasing.

[Modification of Second Embodiment]
In the wooden building 60 shown in the second embodiment, a rectangular tubular structural steel column 61 standing inside a building is a main beam of structural beams on both sides of the steel column 61 as shown in FIG. Although an example of a building in which 81 is integrally joined via a beam receiver 80 is shown, the wooden building 60A may be configured as shown in FIG. 19 depending on the form of the building.

  In a wooden building 60A shown in the modification of the second embodiment, a rectangular tubular structural steel column 61 standing inside a building receives a structural beam main beam 81 on one side of the steel column 61. A small beam 86 that is not a structural beam is joined to the other side of the steel column 61 by a beam receiving hardware 87 that does not include a support plate. The beam height of the small beam 86 is lower than the beam height of the main beam 81 which is a structural beam, for example, 240 mm. The small beam 86 forms a floor beam or the like. The small beam 86 is supported by a pipe column or small column 88 standing on the base 76.

  Since the other structure of the wooden building 60A shown in FIG. 19 is not different from that shown in the second embodiment, the description thereof is omitted.

[Other Embodiments]
In each embodiment of the wooden building according to the present invention, the wooden building of the three-story building and the four-story building has been described. However, the present invention is applied to a wooden building of a five-story or six-story high-rise building. May be.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 10 ... Wooden building, 11 ... Built-in garage (store space), 12 ... Structural steel column, 12a, 12b, 12c ... Steel column element, 13 ... Building base, 14 ... Column base metal, 16 ... Anchor bolt, 17 ... Column base pack, 18 ... Fastening nut, 20a, 20b ... Expansion prevention plate, 21 ... Top plate, 22 ... Column base metal fitting, 23 ... Base plate, 24 ... Guide plate, 25 ... Small column (bundle), 26 ... Roof Panel, 27 ... Roof, 28 ... Attic, 30 ... Beam bracket, 31 ... Base plate, 32 ... Support plate, 33 ... Guide plate, 34 ... Guide pin (rocket pin), 35 ... Drift pin, 36 ... Through hole, 37 ... Opening, 40 ... Main beam (structural beam, frame beam), 43 ... Slit groove, 44 ... Engagement guide hole, 45 ... Plate receiving groove, 46 Pin hole, 48 ... floor panel, 49 ... wall panel, 50 ... heat insulating material, 51, 54 ... structural plywood, 53 ... lumber (tube pillar), 58 ... beam receiving recess, 60, 60A ... wooden building, 61 ... Structural steel columns, 61a, 61b, 61c, 61d ... steel column elements, 63 ... building base, 64 ... column base hardware, 65 ... column base reinforcement, 66 ... anchor bolt, 67 ... column base pack, 68 ... fastening nut, 70a, 70b, 70c, 70d ... Expansion prevention plate, 71 ... Top plate, 74 ... Small pillar, bundle, 75 ... Roof, 76 ... Base, 77 ... Anchor bolt, 80 ... Beam receiving fixture, 81 ... Main beam, 82 ... floor beam, 83 ... floor panel, 84 ... ceiling back room, 86 ... small beam (floor beam), 87 ... beam support, 88 ... pipe column, small column.

Claims (11)

A tubular structural steel column erected on the column base metal of a reinforced concrete building foundation;
A beam support fixed to a side of the structural steel column;
A main beam of a wooden structure beam provided in the beam receiver,
The beam receiver is a base plate fixed to a side surface of the structural steel column;
A support plate for receiving and supporting the end of the main beam;
The guide plate that engages and guides the slit groove at the end of the main beam is integrally configured to be orthogonal to each other,
While a guide pin is erected on the support plate, a plurality of through holes are formed in the guide plate,
A pin hole is formed at an end of the main beam at a position corresponding to each through hole of the guide plate,
The main beam has its engagement guide hole engaged with the guide pin and is prevented from being removed, and a plurality of drift pins are inserted from the pin holes into the through holes of the guide plate and are prevented from being removed. junction structure of steel columns and beams, characterized in that it is configured. The structural steel column has a fixed column base base pack stacked on the column base hardware at its base,
The column base hardware and the column base pack are fixed by anchor bolts and nuts protruding through the column base hardware and the column base base pack from the building foundation,
The steel column and beam joint structure according to claim 1, wherein the structural steel column is tightened and erected on the building foundation. 3. The structural steel column according to claim 1, wherein the structural steel column is configured by stacking and integrally connecting rectangular tube-shaped steel column elements on a rectangular tube-shaped steel column element via a steel expansion prevention plate. Of steel column and beam. The steel pillar-to-beam joint structure according to claim 1 , wherein the guide pin is erected on a support plate of the beam receiver and extends along one side or both sides of the beam receiver. 2. The steel column / beam connection structure according to claim 1 , wherein the base plate is fixed to a side surface of the structural steel column directly or in a side recess of the structural steel column. A column base is provided on a fixed top plate for preventing opening at the top of the structural steel column,
The joint structure of a steel column and a beam according to claim 1, wherein a small column or a bundle is erected on the column base. The beam receiving hardware, the column base hardware and the pedestal stigma hardware, the bonding structure of the steel column and the beam according to claim 6, wherein the cast article is cast in spheroidal graphite cast iron. Column base hardware is installed in at least four locations of the reinforced concrete building foundation,
On the pedestal hardware, it placed to overlap the fixed column base Besupakku the base of the tubular structural steel columns,
The column base metal and the column base pack are fixed by anchor bolts and nuts protruding from the building foundation through the column base metal and the column base base pack, and the structural steel columns are respectively erected on the building foundation. ,
Fixing the beam support to the side of each floor part of the structural steel column building,
Supporting the main beam of the wooden structural beam on the beam bracket facing between the structural steel columns,
The beam support is a base plate fixed to a side portion of the structural steel column;
A support plate for receiving and supporting the end of the main beam;
The guide plate that engages and guides the slit groove at the end of the main beam is integrally configured to be orthogonal to each other,
While a guide pin is erected on the support plate, a plurality of through holes are formed in the guide plate,
At each end of the main beam, pin holes are formed at positions corresponding to the through holes of the guide plate,
The main beam has its engagement guide hole engaged with the guide pin and is prevented from being removed, and a plurality of drift pins are inserted from the pin hole into the through hole of the guide plate and are retained.
The main beam, the beam receiving device is bonded to the structural steel columns by hardware, and wooden buildings which the beam receiving device placed on it noodles beam support frame hardware is characterized in that constructed. The structural steel columns are stacked steel columns elements of the rectangular tube-shaped through steel expansion preventing plate square tubular steel column on elements, wooden according to configured claim 8 integrally bonded Building. The main beam is composed of a structural laminated material having a large cross section selected from a beam width (W) of 105 mm to 240 mm and a beam height (H) of 240 mm to 600 mm or a composite material of non-combustible material and wood. The wooden building according to claim 8 , which is a structural beam. The main beam has the largest beam height (H) of the main beam laid between structural steel columns on the first floor of the building, and the beam height (H) of the main beam becomes smaller toward the upper floor. The wooden building of Claim 8 or 10 comprised by these.

Images