Column and beam construction

Abstract

To provide a column-beam structure which is reduced in kinds of members to be used in the column-beam structure and can simplify a column-beam joined part.SOLUTION: A column-beam structure includes: a plurality of steel pipe columns arranged at intervals in a horizontal direction; a plurality of common units having a core material that is inserted into the steel pipe columns and into which the steel pipe columns are inserted, and a bracket material that extends in a horizontal direction from the core material, and connected to the steel pipe columns; and a beam body part whose one end is connected to the bracket material of the common units connected to one steel pipe column, and the other end is connected to the bracket material of the common unit connected to the other steel pipe column arranged adjacently to the one steel pipe column.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a beam-column structure. [Background technology]

[0002] Patent Document 1 describes a non-braced steel-framed building composed of square pipe columns and steel beams. The columns consist of a lower column and an upper column that are joined midway between floors. A connecting steel frame with an open cross-section is inserted into the lower column and extends downward from the main body of the square pipe upper column. The connecting steel frame of the upper column is embedded in the lower column and filled with grout, forming a rigid joint between the lower and upper columns. Beam end components are welded to at least two side surfaces of the lower end of the lower column. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-037775 Summary of the Invention [Problem to be solved by the invention]

[0004] In the past, unique materials were used for each part of the column-beam joints in the column-beam structure, which is the skeleton of a steel-framed building. This resulted in a large number of different types of materials, making management cumbersome. An object of the present disclosure is to reduce the number of types of components used in a column-beam structure and to simplify the column-beam joints. [Means for solving the problem]

[0005] The column-beam structure described in the first aspect is characterized in that it comprises a plurality of common units connected to the steel pipe columns, each having a plurality of steel pipe columns arranged at horizontal intervals, a core material that is inserted into the steel pipe columns or into which the steel pipe columns are inserted, and a bracket material that extends horizontally from the core material, and a beam main body portion having one end connected to the bracket material of the common unit connected to one of the steel pipe columns and the other end connected to the bracket material of the common unit connected to another steel pipe column arranged next to the one of the steel pipe columns.

[0006] According to the configuration of the first aspect, one end of the beam main body is connected to a bracket material of a common unit connected to one steel pipe pole, and the other end is connected to a bracket material of a common unit connected to another steel pipe pole arranged next to the one steel pipe pole. In other words, a plurality of common units are provided, and each common unit is connected to both one steel pipe pole and another steel pipe pole.

[0007] In this way, by using common units, the number of types of components used in the column-beam structure can be reduced and the column-beam joints can be simplified.

[0008] The column-beam structure described in the second aspect is characterized in that, in the column-beam structure described in the first aspect, the core material is a steel pipe material, and an adjustment plate is provided between the outer surface of the core material and the inner surface of the steel pipe column, or between the inner surface of the core material and the outer surface of the steel pipe column, to adjust the degree of contact between the core material and the steel pipe column.

[0009] According to the configuration of the second aspect, by using an adjustment plate to adjust the degree of contact between the core material and the steel pipe column, when a horizontal load acts on the steel pipe column or the common unit, the steel pipe column and the core material can be reliably brought into contact, and stress can be reliably transmitted between the steel pipe column and the common unit.

[0010] The column-beam structure described in the third aspect is characterized in that, in the column-beam structure described in the first or second aspect, it is provided with a penetrating member that penetrates horizontally through the steel pipe column and the core member.

[0011] According to the third aspect, the penetrating member penetrates horizontally through the steel pipe column and the core member. This makes it possible to prevent the roof from lifting upward when a force that would lift the roof attached to the column-beam structure upward is applied, for example, due to the influence of strong winds. [Effects of the Invention]

[0012] According to the present disclosure, it is possible to reduce the number of types of components used in a column-beam structure and simplify the column-beam joints. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a perspective view showing an entire beam-column structure according to an embodiment of the present disclosure. FIG. [Figure 2] FIG. 1 is an exploded perspective view showing a main part of a beam-column structure according to an embodiment of the present disclosure. [Figure 3] FIG. 1 is a perspective view showing a main part of a beam-column structure according to an embodiment of the present disclosure. [Figure 4] 1A and 1B are perspective views showing a common unit used in a beam-column structure according to an embodiment of the present disclosure. [Figure 5] 1A and 1B are side views showing a common unit and a steel pipe column used in a beam-column structure according to an embodiment of the present disclosure. [Figure 6] 1 is a schematic diagram showing a column-beam joint when a horizontal load acts on a building using a column-beam structure according to an embodiment of the present disclosure. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0014] A beam-column structure according to an embodiment of the present disclosure will be described with reference to Figures 1 to 6. Note that arrow H shown in the figures indicates the vertical direction, i.e., the height direction, arrow W indicates the horizontal direction, i.e., the width direction, and arrow D indicates the horizontal direction, i.e., the depth direction. Note that arrows W and D are perpendicular to each other.

[0015] (Column beam structure 100) As shown in FIG. 1, the beam-column structure 100 includes a steel pipe column 10, a common unit 20, and a beam body 30.

[0016] [Beam body part 30] The beam main body 30 has an H-shaped cross section, and a plurality of beam main bodies 30 are provided as shown in Fig. 1. The beam main body 30 extends in the depth direction or the width direction. Furthermore, the beam main body 30 is arranged at intervals in the depth direction and the width direction.

[0017] [Steel pipe column 10] The steel pipe poles 10 have a rectangular cross section, and a plurality of them are provided as shown in Fig. 1. When viewed from above, the plurality of steel pipe poles 10 are arranged at positions where extension lines of the beam main body 30 intersect.

[0018] The multiple steel pipe columns 10 are attached to footings 102 that are provided side by side at intervals in the width and depth directions, respectively. Specifically, as shown in Figs. 2 and 3, multiple through holes 12a are formed in a base plate 12 provided at the lower end of the steel pipe column 10. Then, anchor bolts 104 that protrude upward from the footing 102 are passed through the through holes 12a, and nuts 106 are tightened onto the anchor bolts 104. In this way, the steel pipe column 10 is attached to the footing 102.

[0019] Furthermore, through holes 10a penetrating in the depth direction are formed in the upper part of the steel pipe column 10. Specifically, the through holes 10a are formed as a pair, and the pair of through holes 10a overlap when viewed from the depth direction.

[0020] [Common Unit 20] As shown in Fig. 1, a plurality of common units 20 are provided and connected to the upper part of the steel pipe column 10. The common units 20 are divided into a common unit 20a that is cross-shaped when viewed from above, a common unit 20b that is T-shaped when viewed from above, and a common unit 20c that is L-shaped when viewed from above. When there is no particular need to distinguish between the common units 20a, 20b, and 20c, they may be referred to as common units 20.

[0021] -Cross-shaped common unit 20a- As shown in Fig. 1, the common unit 20a is disposed between a pair of adjacent beam main body portions 30 when viewed from above. Specifically, the common unit 20a is disposed at a position facing the end faces of the beam main body portions 30 in four directions. As shown in Fig. 2, the common unit 20a includes a core material 22 and a bracket portion 23.

[0022] As shown in Fig. 2, the bracket portion 23 includes a bracket member 24a that extends in the depth direction and has an H-shaped cross section, and a bracket member 24b that extends in the width direction and has an H-shaped cross section. The bracket member 24b that extends in the width direction is divided in the center in the longitudinal direction. The divided bracket members 24b sandwich the bracket member 24a in the width direction. The divided bracket members 24b are each attached to the bracket member 24a by welding. When there is no need to distinguish between the bracket members 24a and 24b, they may be referred to as bracket members 24.

[0023] 2, the core material 22 is a steel pipe material that extends in the vertical direction (up and down direction). Furthermore, the cross section of the core material 22 is a rectangular tube shape. The upper end of the core material 22 is attached by welding to the portion where the bracket material 24a and the bracket material 24b intersect.

[0024] Furthermore, when viewed from above, the length by which bracket material 24a protrudes from the core material 22 to one side in the depth direction is the same as the length by which bracket material 24a protrudes from the core material 22 to the other side in the depth direction. When viewed from above, the length by which bracket material 24b protrudes from the core material 22 to one side in the width direction is the same as the length by which bracket material 24b protrudes from the core material 22 to the other side in the width direction. When viewed from above, the length by which bracket material 24a protrudes from the core material 22 is the same as the length by which bracket material 24b protrudes from the core material 22.

[0025] Furthermore, through holes 22a penetrating in the depth direction are formed in the core material 22. Specifically, a pair of through holes 22a are formed, and the pair of through holes 22a overlap when viewed in the depth direction.

[0026] In this configuration, the core material 22 of the common unit 20 is inserted into the upper part of the steel pipe pole 10, as shown in Fig. 2 and Fig. 3. Then, the bracket material 24 comes into contact with the end face of the steel pipe pole 10, thereby limiting the insertion amount of the core material 22. In this state, the through hole 22a formed in the core material 22 and the through hole 10a formed in the steel pipe pole 10 overlap when viewed from the depth direction.

[0027] Furthermore, when the core material 22 is inserted into the upper part of the steel pipe column 10, a gap is created between the outer peripheral surface of the core material 22 and the inner peripheral surface of the steel pipe column 10, as shown in Figures 5(A) and (B). Furthermore, the bracket members 24a, 24b and the end portions of the beam main body portion 30 are connected using splice plates and bolts and nuts (reference numerals omitted) (see the partially enlarged view of FIG. 3).

[0028] -T-shaped common unit 20b- The common unit 20b will be described below, focusing on the differences from the common unit 20a. As shown in Fig. 1, the common unit 20b is disposed between a pair of adjacent beam main body portions 30 when viewed from above. Specifically, the common unit 20b is disposed at a position facing the end faces of the beam main body portions 30 in three directions. The common unit 20b includes a core material 22 and a bracket portion 25, as shown in Fig. 4(A).

[0029] As shown in Fig. 4(A), the bracket portion 25 includes a bracket member 26a that extends in the depth direction and has an H-shaped cross section, and a bracket member 26b that extends in the width direction and has an H-shaped cross section. The bracket member 26b that extends in the width direction is disposed on one side of the bracket member 26a. The bracket member 26b is attached to the longitudinal center portion of the bracket member 26a by welding. When there is no need to distinguish between the bracket members 26a and 26b, they may be referred to as bracket members 26.

[0030] The upper end of the core member 22 is attached by welding to the portion where the bracket member 26b is attached to the bracket member 26a.

[0031] Furthermore, when viewed from above, the length by which bracket material 26a protrudes from core material 22 to one side in the depth direction is the same as the length by which bracket material 26a protrudes from core material 22 to the other side in the depth direction. Furthermore, when viewed from above, the length by which bracket material 26b protrudes from core material 22 in the width direction is the same as the length by which bracket material 26a protrudes from core material 22 in the depth direction. Furthermore, when viewed from above, the length by which bracket materials 26a, 26b protrude from core material 22 is the same as the length by which bracket materials 24a, 24b protrude from core material 22.

[0032] In this configuration, the bracket members 26a, 26b and the ends of the beam main body 30 are connected using splice plates and bolts and nuts (see FIG. 1).

[0033] -L-shaped common unit 20c- The common unit 20c will be described below, focusing on the differences from the common unit 20a. As shown in Fig. 1, the common unit 20c is arranged at a corner of the beam-column structure 100. Specifically, the common unit 20c is arranged at a position opposite to the end face of the beam main body portion 30 in two directions. The common unit 20c includes a core material 22 and a bracket portion 27, as shown in Fig. 4(B).

[0034] As shown in Fig. 4(B), the bracket portion 27 includes a bracket member 28a that extends in the depth direction and has an H-shaped cross section, and a bracket member 28b that extends in the width direction and has an H-shaped cross section. The bracket member 28b that extends in the width direction is disposed on one side of the bracket member 28a. The bracket member 28b is attached to the longitudinal end of the bracket member 28a by welding. When there is no need to distinguish between the bracket members 28a and 28b, they may be referred to as bracket members 28.

[0035] The upper end of the core member 22 is attached by welding to the portion where the bracket member 26b is attached to the bracket member 26a.

[0036] Furthermore, when viewed from above, the length by which bracket material 28a protrudes from core material 22 in the depth direction is the same as the length by which bracket material 26b protrudes from core material 22 in the width direction. Furthermore, when viewed from above, the length by which bracket materials 28a, 28b protrude from core material 22 is the same as the length by which bracket materials 24a, 24b protrude from core material 22.

[0037] In this configuration, the bracket members 28a, 28b and the end of the beam main body 30 are connected using splice plates and bolts and nuts (see FIG. 1).

[0038] 〔others〕 As shown in Figures 5(A) and (B), the beam-column structure 100 includes an adjusting plate 40 that is arranged between the outer peripheral surface of the core material 22 and the inner peripheral surface of the steel pipe column 10. By arranging this adjusting plate 40 at an arbitrary position, the degree of contact between the outer peripheral surface of the core material 22 and the inner peripheral surface of the steel pipe column 10 can be adjusted. Note that this adjusting plate 40 is attached to the outer peripheral surface of the core material 22 by, for example, welding.

[0039] 2 and 3, the column-beam structure 100 is provided with bolts 46 that penetrate horizontally through the steel pipe column 10 and the core material 22. Specifically, the bolts 46 are inserted into a pair of through holes 10a formed in the steel pipe column 10 and a pair of through holes 22a formed in the core material 22. In this way, the bolts 46 penetrate horizontally through the steel pipe column 10 and the core material 22. The bolts 46 are an example of a penetrating member.

[0040] A nut (not shown) is provided on the opposite side of the steel pipe pole 10 from the head of the bolt 46. The bolt 46 is attached to the steel pipe pole 10 by tightening this nut to the tip portion of the bolt 46.

[0041] (action) When an external load is applied to a steel pipe column 10 provided in a beam-column structure 100, first, the tip portion of the steel pipe column 10 and the tip portion of the core material 22 come into contact with each other (region A in the figure), as shown in Fig. 6. Then, stress generated in the tip portion of the steel pipe column 10 and the tip portion of the core material 22 is transmitted as bending of the column head of the steel pipe column 10 and flows to the column base of the steel pipe column 10. Here, the degree of fixation of the column head of the steel pipe column 10 at this time becomes smaller than that of a conventional beam-column joint due to the occurrence of bulging and loosening in the steel pipe column 10.

[0042] (summary) As explained above, in the beam-column structure 100, one end of the beam main body 30 is connected to the bracket materials 24, 26, 28 of the common unit 20 connected to one steel pipe column 10, and the other end is connected to the bracket materials 24, 26, 28 of the common unit 20 connected to another steel pipe column 10 arranged next to the one steel pipe column 10. In other words, a plurality of common units 20 are provided, and each is connected to one steel pipe column 10 and each of the other steel pipe columns 10. In this way, by using the common units 20, it is possible to reduce the number of types of members used in the beam-column structure 100 and to simplify the beam-column joint.

[0043] Furthermore, in the case of the beam-column structure 100, when the beam-column structure 100 is dismantled, the common unit 20 can be used for another beam-column structure 100 to be manufactured in the future.

[0044] In the beam-column structure 100, the core member 22 is inserted into the upper portion of the steel pipe column 10 on-site. Furthermore, the beam main body 30 is attached to the bracket members 24, 26, 28 provided on the common unit 20 on-site using splice plates and bolts and nuts. This eliminates the need for on-site welding.

[0045] Moreover, in the beam-column structure 100, an adjustment plate 40 is arranged between the outer peripheral surface of the core material 22 and the inner peripheral surface of the steel pipe column 10. By arranging this adjustment plate 40 at any position, the degree of contact between the outer peripheral surface of the core material 22 and the inner peripheral surface of the steel pipe column 10 is adjusted. As a result, when a horizontal load acts on the steel pipe column 10 or the common unit 20, the steel pipe column 10 and the core material 22 can be reliably brought into contact with each other, and stress can be reliably transmitted between the steel pipe column 10 and the common unit 20.

[0046] Furthermore, in the column-beam structure 100, bolts 46 are provided that penetrate horizontally through the steel pipe columns 10 and the core material 22. The amount of upward movement of the common unit 20 relative to the steel pipe columns 10 is restricted by the bolts 46. This makes it possible to prevent the roof attached to the column-beam structure 100 from lifting upward, for example, when an upward lifting force acts on the roof due to the influence of strong winds or the like.

[0047] Although the present disclosure has been described in detail with respect to specific embodiments, it will be apparent to those skilled in the art that the present disclosure is not limited to such embodiments and that various other embodiments are possible within the scope of the present disclosure. For example, in the above embodiment, the bolt 46 horizontally penetrates the steel pipe column 10 and the core member 22, but the bolt is not limited to a bolt and may be any elongated member. For example, a shaft or the like may be used.

[0048] Furthermore, in the above embodiment, the column-beam structure 100 for the first floor portion has been described, but the column-beam structure 100 of the present disclosure may also be used for column-beam structures for floors other than the first floor. In this case, for example, the core material 22 of the common unit 20 is also provided on the opposite side of the bracket materials 24, 26, 28. The core material provided on the opposite side may then be inserted into the lower part of the steel pipe column of the upper floor.

[0049] Although not specifically described in the above embodiment, a plurality of adjustment plates 40 of different thicknesses may be provided, thereby making it possible to easily adjust the horizontality of the bracket members 24, 26, 28.

[0050] Furthermore, in the above embodiment, the core material 22 is inserted into the inside of the steel pipe pole 10, but by enlarging the cross section of the core material 22, the upper part of the steel pipe pole may be inserted into the inside of the core material. [Explanation of symbols]

[0051] 10 Steel pipe column 20 Common Units 20a Common Unit 20b Common Unit 20c Common Unit 22 Core material 24 Bracket material 24a bracket material 24b bracket material 26 Bracket material 26a Bracket material 26b Bracket material 28 Bracket material 28a bracket material 28b Bracket material 30 Beam body 40 Adjustment Plate 46 Bolt (an example of a penetrating material) 100 Column beam structure

Claims

1. a plurality of horizontally spaced steel pipe columns; A core material that is inserted into the steel pipe column or into which the steel pipe column is inserted, and a bracket material that extends horizontally from the core material when viewed in the vertical direction, and a plurality of common units that are connected to the steel pipe column; a beam main body portion having one end connected to the bracket material of the common unit connected to one of the steel pipe columns and the other end connected to the bracket material of the common unit connected to another steel pipe column arranged next to the one of the steel pipe columns; The bracket material is divided into one bracket material having an H-shaped cross section extending in the depth direction and another bracket material having an H-shaped cross section extending in the width direction, The other bracket material is attached to the one bracket material by welding without using another member, an upper end of the core material is welded to a lower surface of a lower flange of the first bracket material, and the core material protrudes downward from the lower surface; When the core material is inserted into the steel pipe column, the lower surface of the lower flange of the one bracket material comes into contact with the end surface of the steel pipe column, thereby limiting the insertion amount of the core material into the steel pipe column. Column beam structure.

2. The core material is a steel pipe material, An adjustment plate is provided between the outer peripheral surface of the core material and the inner peripheral surface of the steel pipe column, or between the inner peripheral surface of the core material and the outer peripheral surface of the steel pipe column, to adjust the degree of contact between the core material and the steel pipe column. The beam-column structure according to claim 1 .

3. A penetrating member is provided which penetrates the steel pipe column and the core material horizontally. The beam-column structure according to claim 1 or 2.

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