WO2015140891A1 - 柱構造及びベース部材 - Google Patents
柱構造及びベース部材 Download PDFInfo
- Publication number
- WO2015140891A1 WO2015140891A1 PCT/JP2014/057081 JP2014057081W WO2015140891A1 WO 2015140891 A1 WO2015140891 A1 WO 2015140891A1 JP 2014057081 W JP2014057081 W JP 2014057081W WO 2015140891 A1 WO2015140891 A1 WO 2015140891A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- anchor
- anchor bolt
- base
- web
- base member
- Prior art date
Links
- 239000000463 material Substances 0.000 claims description 16
- 230000004323 axial length Effects 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 abstract description 25
- 239000010959 steel Substances 0.000 abstract description 25
- 238000005452 bending Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 13
- 239000004570 mortar (masonry) Substances 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 5
- 229910000975 Carbon steel Inorganic materials 0.000 description 3
- 239000010962 carbon steel Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4157—Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2463—Connections to foundations
Definitions
- the present invention relates to a column structure in which a column member is coupled to the upper side of the base member, and a base member in which the column member is coupled to the upper side.
- Japanese Patent No. 2655774 discloses a column base structure.
- a base plate is fastened to an anchor bolt fixed to a foundation, and a column made of H-shaped steel is attached to the upper surface of the base plate via an inverted T-shaped split tee.
- the vertical piece of the split tee is fastened to the column by high strength bolts and nuts, and the bottom piece of the split tee is similarly fastened to the base plate by high strength bolts and nuts.
- the yield bending strength of the column base structure is determined by the outermost anchor bolt regardless of the yield deformation of the inner anchor bolt, so there is room for improvement in improving the yield bending strength of the column base structure. It was.
- the present invention is intended to obtain a column structure and a base member that can improve the yield bending yield strength in consideration of the above facts.
- the column structure according to the first aspect of the present invention includes a column member in which flanges are integrally provided on both sides in the width direction of the web, a base member to which the column member is coupled to the upper side, a lower end side fixed to the foundation, and a base In the member, a first anchor member whose upper end side is fixed to the opposite side of the web side of the flange and a lower end side are fixed to the foundation, and an upper end side is fixed to the base member on the inner side in the width direction of the web than the first anchor member. And a second anchor member having a yield deformation smaller than that of the first anchor member.
- the first anchor member is formed of a material having higher strength than the second anchor member.
- the first anchor member is formed longer in the axial direction than the second anchor member.
- the second anchor member is closer to the flange side than the first anchor member.
- a recess is provided on the lower side of the base member.
- the base member according to the sixth aspect of the present invention is provided on the opposite side of the base body from the web side of the flange, and the base body in which the pillar members integrally provided with the flanges on both sides in the width direction of the web are coupled to the upper side.
- a first fixing part fixed to the upper end side of the first anchor member, the lower end side of which is fixed to the foundation, and the base body is provided on the inner side in the width direction of the web than the first fixing part, and the lower end side is fixed to the foundation.
- fixed part fixed to the upper end side of the 2nd anchor member whose yield deformation is smaller than a 1st anchor member is provided.
- the second fixing portion is closer to the flange than the first fixing portion.
- a recess is provided on the lower side of the base body.
- a column member in which flanges are integrally provided on both sides in the width direction of the web is coupled to the upper side of the base member.
- the lower ends of the first anchor member and the second anchor member are fixed to the foundation, and the base member is fixed to the upper ends of the first anchor member and the second anchor member.
- the upper end side of the first anchor member is fixed to the opposite side of the base member from the web side of the flange.
- the upper end side of the second anchor member is fixed to the inner side in the web width direction than the first anchor member in the base member, and the yield deformation of the second anchor member is made smaller than the yield deformation of the first anchor member.
- the yield deformation of the second anchor member is greater than the yield deformation of the first anchor member. Get smaller.
- the yield deformation of the second anchor member is greater than the yield deformation of the first anchor member. Becomes smaller.
- the yield deformation of the second anchor member is smaller than the yield deformation of the first anchor member.
- the second anchor member is closer to the flange than the first anchor member, the distance between the column member and the second anchor member is reduced.
- the thickness of the base member is determined by the tensile strength of the second anchor member and the distance between the second anchor member and the column member. For this reason, since the distance of a 2nd anchor member and a column member becomes small, the thickness of a base member can be made thin.
- the base member is prevented from shifting in the horizontal direction.
- the pillar member integrally provided with the flanges on both sides in the width direction of the web is coupled to the upper side of the base body.
- the lower ends of the first anchor member and the second anchor member are fixed to the foundation, the first fixing portion of the base body is fixed to the upper end side of the first anchor member, and the second fixing portion of the base body is the second fixing portion. 2 It is fixed to the upper end side of the anchor member.
- the first fixing portion is fixed to the upper end side of the first anchor member on the side opposite to the web side of the flange of the base body.
- the second fixing portion is fixed to the upper end side of the second anchor member on the inner side in the web width direction than the first anchor member of the base main body, and the yield deformation of the second anchor member is less than the yield deformation of the first anchor member. Is also made smaller.
- the yield deformation of both the first anchor member and the second anchor member can be changed and the yield deformation can be caused in both, the bending stress is effectively absorbed. Therefore, the yield strength of the column structure can be improved by the base member.
- the second fixing portion is closer to the flange than the first fixing portion, the distance between the column member and the second fixing portion is reduced.
- the thickness of the base body is determined by the tensile strength of the second anchor member and the distance between the second fixing portion and the column member. For this reason, since the distance of a 2nd fixing
- the recess is provided on the lower side of the base body, and the recess is locked to the foundation, so that the horizontal displacement of the base body is suppressed.
- FIG. 3 is a cross-sectional view of the pillar structure and the base member according to the first embodiment of the present invention as viewed from the width direction of the flange (taken along the line AA shown in FIG. 2). It is a top view of the pillar structure and base member concerning a 1st embodiment. It is sectional drawing corresponding to FIG. 1 of the pillar structure and base member which concern on 2nd Embodiment of this invention. It is sectional drawing corresponding to FIG. 1 of the pillar structure and base member which concern on 3rd Embodiment of this invention. It is a top view corresponding to Drawing 2 of a pillar structure and a base member concerning a 4th embodiment of the present invention.
- FIGS. 1 and 2 A column structure and a base member according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2.
- an H-shaped steel column (H-shaped steel column) is used as the column member, and the arrow WH direction appropriately shown in the drawing indicates the width direction of the web of the column member, and the arrow FH direction is the column.
- the width direction of the flange of a member is shown.
- the arrow UP direction indicates the upward direction.
- the column structure 10 As shown in FIGS. 1 and 2, the column structure 10 according to this embodiment is installed on a foundation 12.
- the foundation 12 is, for example, concrete, and the upper surface of the foundation 12 is horizontal and flat. Although illustration is omitted, the inside of the foundation 12 is arranged and the strength of the foundation 12 is improved.
- a mortar 14 as a fixing means is provided on the upper surface of the foundation 12.
- the mortar 14 is, for example, rectangular in plan view.
- a base member 16 is fixed to the upper surface of the mortar 14.
- the base member 16 includes a base plate 16A as a base body.
- the mortar 14 is provided on the entire lower side of the base plate 16A.
- the base plate 16A is formed in a rectangular flat plate shape having the arrow WH direction as a long direction and the arrow FH direction as a short direction. More specifically, the base plate 16A is formed of a metal material such as rolled steel SN490B for building structure, cast steel, etc. defined by, for example, Japanese Industrial Standard (JIS standard) G3136.
- one end portion in the longitudinal direction of the base plate 16A shown on the left side is provided with two first fixing holes 18A and a first fixing hole 18B as first fixing portions at an intermediate portion in the short direction. Yes.
- first fixing holes 18C and first fixing holes 18D are provided at the other end portion in the longitudinal direction of the base plate 16A shown on the right side in the drawing.
- the first fixing holes 18A to 18D are formed by circular through holes having the same diameter in plan view.
- the position of the central axis of the first fixing hole 18A and the position of the central axis of the first fixing hole 18B are coincident in the arrow FH direction.
- the position of the central axis of the first fixing hole 18C and the position of the central axis of the first fixing hole 18D are the same in the arrow FH direction. Further, the position of the central axis of the first fixing hole 18A and the position of the central axis of the first fixing hole 18C coincide with each other in the arrow WH direction. The position of the central axis of the first fixing hole 18B and the position of the central axis of the first fixing hole 18D are the same in the arrow WH direction.
- one end portion in the longitudinal direction of the base plate 16A shown on the left side is provided with two second fixing holes 20A and second fixing holes 20B as second fixing portions at both ends in the short direction. It has been.
- two second fixing holes 20C and second fixing holes 20D as second fixing portions are provided at both ends in the lateral direction. Is provided.
- the second fixing holes 20A to 20D are formed by circular through holes having the same diameter as the first fixing holes 18A to 18D.
- the position of the central axis of the second fixed hole 20A and the position of the central axis of the second fixed hole 20B are aligned with the arrow FH direction.
- the positions of the central axes of the second fixing hole 20A and the second fixing hole 20B are set inward in the arrow WH direction from the positions of the central axes of the first fixing hole 18A and the first fixing hole 18B, and the base plate 16A. Near the center in the longitudinal direction. That is, the positions of the central axes of the second fixing hole 20A and the second fixing hole 20B are closer to the flange 30B of the steel column 30 described later than the positions of the central axes of the first fixing hole 18A and the first fixing hole 18B. Yes.
- the position of the central axis of the second fixing hole 20A is set to the outer side in the arrow FH direction than the position of the central axis of the first fixing hole 18A.
- the position of the central axis of the second fixing hole 20B is outside the direction of the arrow FH with respect to the position of the central axis of the first fixing hole 18B.
- the position of the central axis of the second fixing hole 20C and the position of the central axis of the second fixing hole 20D coincide with each other in the direction of the arrow FH.
- the positions of the central axes of the second fixing hole 20C and the second fixing hole 20D are set inward in the arrow WH direction from the positions of the central axes of the first fixing hole 18C and the first fixing hole 18D, and the base plate 16A. Near the center in the longitudinal direction.
- the positions of the central axes of the second fixing hole 20C and the second fixing hole 20D are closer to the flange 30B than the positions of the central axes of the first fixing hole 18C and the first fixing hole 18D.
- the position of the center axis of the second fixing hole 20C is set to the outer side in the arrow FH direction than the position of the center axis of the first fixing hole 18C.
- the position of the central axis of the second fixing hole 20D is outside the direction of the arrow FH with respect to the position of the central axis of the first fixing hole 18D.
- the base plate 16A is arranged at the other end portion with four first fixing holes 18A, first fixing holes 18B, second fixing holes 20A and second fixing holes 20B arranged at one end portion in the longitudinal direction.
- Four first fixing holes 18C, a first fixing hole 18D, a second fixing hole 20C, and a second fixing hole 20D are provided. That is, in the present embodiment, a total of eight first fixing portions and second fixing portions are provided on the base plate 16A.
- a recess 22 is formed on the lower surface of the base plate 16A around each of the first fixing holes 18A to 18D and the second fixing holes 20A to 20D.
- the top surface of the recess 22 in the horizontal direction (the bottom surface of the recess 22) is planar.
- the concave portion 22 gradually expands toward the outer peripheral side of the base plate 16A and is open to the outer peripheral side of the base plate 16A, and is formed in a substantially triangular shape in plan view.
- On the peripheral surface in the vertical direction of the recess 22, a part of the center side of the base plate 16 A is configured to be flush with the inner surfaces of the first fixing holes 18 A to 18 D and the second fixing holes 20 A to 20 D.
- the entire recess 22 is filled with mortar 14, and the base plate 16 ⁇ / b> A is fixed to the foundation 12 with the mortar 14 interposed therebetween.
- the base 12 is fixed with a first anchor bolt (anchor lock) 24 as a first anchor member and a second anchor bolt (anchor lock) 26 as a second anchor member.
- the first anchor bolt 24 includes a columnar anchor body 24A, and the axial direction of the anchor body 24A is the vertical direction.
- Most of the anchor main body 24A including the lower end 24B other than the upper end 24C penetrates the mortar 14 and is embedded in the foundation 12.
- the second anchor bolt 26 includes a columnar anchor body 26A, and the axial direction of the anchor body 26A is the vertical direction.
- Most of the anchor body 26 ⁇ / b> A including the lower end portion 26 ⁇ / b> B other than the upper end portion 26 ⁇ / b> C penetrates the mortar 14 and is embedded in the foundation 12.
- a male screw is provided at the lower end 24B of the anchor main body 24A, and two nuts 24D and nuts 24E provided in the vertical direction are engaged with the male screw.
- an anchor portion is formed, and an annular flat fixing plate 24F protruding outside the shaft diameter of the anchor main body 24A is interposed.
- the fixing plate 24F is fastened and fixed by a nut 24D and a nut 24E.
- the nut 24D, the nut 24E, and the fixing plate 24F are embedded in the foundation 12 to prevent the first anchor bolt 24 from coming off.
- the upper end 24C of the anchor main body 24A is configured to protrude through the first fixing holes 18A to 18D of the base plate 16A.
- the upper end portion 24C is provided with a male screw, and a nut 24G for fixing the base plate 16A to the male screw is hinged.
- An annular flat washer 24H is interposed between the base plate 16A and the nut 24G.
- two nuts 26D and 26E are hinged to a male screw provided at the lower end portion 26B of the anchor main body 26A.
- An annular flat plate-shaped fixing plate 26F is interposed between the nut 26D and the nut 26E.
- the fixing plate 26F is fastened and fixed by a nut 26D and a nut 26E.
- the nut 26D, the nut 26E, and the fixing plate 26F are embedded in the foundation 12 to prevent the second anchor bolt 26 from coming off.
- the upper end portion 26C of the anchor body 26A is configured to protrude through the second fixing holes 20A to 20D of the base plate 16A.
- the upper end portion 26C is provided with a male screw, and a nut 26G for fixing the base plate 16A is hinged to the male screw.
- An annular flat washer 26H is interposed between the base plate 16A and the nut 26G.
- the first anchor bolt 24 and the second anchor bolt 26 have the same diameter and the same axial length, but the first anchor bolt 24 is formed of a material having higher strength than the second anchor bolt 26.
- the first anchor bolt 24 has, for example, a carbon steel material having a tensile strength defined by JIS standard G3138 of 490 N / mm 2 and a tensile strength defined by JIS standard G4321 having 520 N / mm 2 .
- Anchor bolts made of stainless steel or the like are used.
- the second anchor bolt 26 for example, an anchor bolt formed of a carbon steel material having a tensile strength of 400 N / mm 2 defined in JIS standard G3138 is used.
- the second anchor bolt 26 may be formed of a carbon steel material having the tensile strength of 490 N / mm 2 . That is, in this embodiment, the yield deformation of the second anchor bolt 26 is set small, and the yield deformation of the first anchor bolt 24 is set large.
- a steel column 30 as a column member extending in the vertical direction as a longitudinal direction is provided at the center portion of the upper surface of the base plate 16A.
- the lower end of the steel column 30 is coupled to the upper surface of the base plate 16A by, for example, arc welding.
- the steel column 30 is formed of an H-shaped steel material having a web 30A and a pair of flanges 30B provided integrally at both ends in the width direction of the web 30A.
- the web 30A of the steel column 30 is formed in a long rectangular flat plate shape in which the arrow WH direction is the width direction and the arrow UP direction is the longitudinal direction.
- Each of the pair of flanges 30 ⁇ / b> B is formed in a long rectangular flat plate shape having the arrow FH direction as the width direction and the arrow UP direction as the longitudinal direction. Both ends of the web 30A are integrally joined at the center portion in the width direction of the flange 30B.
- the steel column 30 is formed of, for example, a rolled steel material for building structure defined in JIS standard G3136, a rolled steel material for welded structure defined in JIS standard G3106, a rolled steel material for general structure defined in JIS standard G3101, or the like. Yes.
- a plurality of column structures 10 are provided in a building.
- a base beam is stretched between the lower ends of the steel columns 30 of the column structure 10 provided adjacently, and the base beam main bars are arranged.
- the steel column 30 in which the flange 30B is integrally provided on both sides in the width direction of the web 30A is coupled to the upper side of the base plate 16A. Is done.
- the lower end 24B of the first anchor bolt 24 and the lower end 26B of the second anchor bolt 26 are fixed to the foundation 12, and the base plate 16A is the upper end 24C of the first anchor bolt 24 and the upper end of the second anchor bolt 26. It is fixed to 26C.
- the upper end 24C of the first anchor bolt 24 is fixed to the opposite side of the flange 30B from the web 30A side in the base plate 16A. Further, the upper end portion 26C of the second anchor bolt 26 is fixed to the base plate 16A on the inner side in the width direction of the web 30A than the first anchor bolt 24, and the yield deformation of the second anchor bolt 26 is the yield deformation of the first anchor bolt 24. Is made smaller. That is, the yield deformation of the first anchor bolt 24 and the yield deformation of the second anchor bolt 26 are changed in the width direction of the web 30 ⁇ / b> A that coincides with the strong axis direction of the steel column 30. In other words, the yield displacement of the first anchor bolt 24 is made larger than the yield displacement of the second anchor bolt 26.
- the width (column column) W of the steel column 30 shown in FIG. 2 is set to 600 mm
- the first anchor bolt 24 interval P1 is set to 800 mm
- the second anchor bolt 26 interval P2 is set to about 600 mm.
- the first anchor bolt 24 is set to have a strength 1.2 to 1.5 times that of the second anchor bolt 26.
- This force F acts as a center of rotation around the center of the base plate 16A, and is a bending stress transmitted from the steel column 30 to the foundation 12 via the base plate 16A, the first anchor bolt 24 and the second anchor bolt 26.
- This bending stress greatly deforms the first anchor bolt 24 arranged outside the second anchor bolt 26 arranged inside the base plate 16A.
- the yield displacement of the first anchor bolt 24 is larger than the yield displacement of the second anchor bolt 26. For this reason, yield deformation occurs in both the first anchor bolt 24 and the second anchor bolt 26 with respect to the bending stress.
- the strength ratio between the first anchor bolt 24 and the second anchor bolt 26 is set to the above value, the yield deformation of the first anchor bolt 24 and the second anchor bolt 26 occurs almost simultaneously. Accordingly, by causing yield deformation in both the first anchor bolt 24 and the second anchor bolt 26, the bending stress is effectively absorbed, so that the yield bending proof stress of the column structure 10 can be improved.
- the first anchor bolt 24 is formed of a material having a higher strength than the second anchor bolt 26, so that the yield deformation of the second anchor bolt 26 is the first. It becomes smaller than the yield deformation of one anchor bolt 24.
- the second fixing holes 20A to 20D or the second anchor bolts 26 are connected to the first fixing holes 18A to 18D or The first anchor bolt 24 is closer to the flange 30B than the first anchor bolt 24. Therefore, the distance L between the flange 30B of the steel column 30 and the second fixing holes 20A to 20D or the second anchor bolts 26 is reduced.
- the base plate It is necessary to increase the thickness 16A (the thickness dimension in the vertical direction) t.
- the total number of the first anchor bolts 24 and the second anchor bolts 26 provided around the pair of one flange 30B in the base plate 16A is n.
- n is “4” in the present embodiment.
- the yield tensile strength in the axial direction of the i-th first anchor bolt 24 or the second anchor bolt 26 in the direction of arrow FH is Ti.
- the distance between the central axis of the i-th first anchor bolt 24 or the second anchor bolt 26 and the flange 30B in the arrow WH direction is Li.
- the dimension (width dimension) in the arrow FH direction of the base plate 16A is B
- the thickness of the base plate 16A is t
- the yield point of the material of the base plate 16A is ⁇ .
- the relational expression expressed by the following formula 1 is established.
- the thickness of the base plate 16A can be reduced by positively reducing the separation distance Li. Therefore, since the material cost of the base plate 16A is reduced, the material cost of the pillar structure 10 and further the manufacturing cost can be reduced.
- a recess 22 is provided on the lower side of the base plate 16A.
- the mortar 14 is embedded in the recess 22, and the base plate 16 ⁇ / b> A is locked to the foundation 12 through the mortar 14.
- difference of the base member 16 with respect to the foundation 12 is suppressed. Therefore, in the column structure 10 and the base member 16, the shear stress transmitted from the steel column 30 to the foundation 12 through the base plate 16A, the first anchor bolt 24, and the second anchor bolt 26 is effectively suppressed. Yield can be improved.
- the configuration of the first anchor bolt 42 as the first anchor member is the configuration of the first anchor bolt 24 in the first embodiment. It is different. In the configuration other than this, the configuration of the column structure 40 and the base member 16 according to the present embodiment is the same as the configuration of the column structure 10 and the base member 16 according to the first embodiment.
- first anchor bolt 42 two nuts 42D and 42E are hinged to a male screw provided at a lower end portion 42B of the anchor main body 42A.
- An annular flat plate-shaped fixing plate 42F is interposed between the nut 42D and the nut 42E.
- the fixing plate 42F is fastened and fixed by a nut 42D and a nut 42E.
- the nut 42D, the nut 42E, and the fixing plate 42F are embedded in the foundation 12 to prevent the first anchor bolt 42 from coming off.
- the upper end portion 42C of the anchor main body 42A is configured to protrude through the first fixing holes 18A to 18D of the base plate 16A.
- the upper end portion 42C is provided with a male screw, and a nut 42G for fixing the base plate 16A to the male screw is hinged.
- An annular flat washer 42H is interposed between the base plate 16A and the nut 42G.
- the axial length of the anchor main body 42A of the first anchor bolt 42 is formed longer than the axial length of the anchor main body 26A of the second anchor bolt 26.
- the shaft diameter of the anchor main body 42A is the same as the shaft diameter of the anchor main body 26A.
- the anchor main body 42A is set to a length of 1.2 times or more and 1.5 times or less of the anchor main body 26A.
- the configuration of the first anchor bolt 52 as the first anchor member is the configuration of the first anchor bolt 24 in the first embodiment. It is different. In other configurations, the configurations of the column structure 50 and the base member 16 according to the present embodiment are the same as the configurations of the column structure 10 and the base member 16 according to the first embodiment.
- first anchor bolt 52 two nuts 52D and 52E are hinged to a male screw provided at the lower end 52B of the anchor main body 52A.
- An annular flat plate-shaped fixing plate 52F is interposed between the nut 52D and the nut 52E.
- the fixing plate 52F is fastened and fixed by a nut 52D and a nut 52E.
- the nut 52D, the nut 52E, and the fixing plate 52F are embedded in the foundation 12, and are configured to prevent the first anchor bolt 52 from coming off.
- the upper end 52C of the anchor main body 52A is configured to protrude through the first fixing holes 18A to 18D of the base plate 16A.
- the upper end 52C is provided with a male screw, and a nut 52G for fixing the base plate 16A is hinged to the male screw.
- An annular flat washer 52H is interposed between the base plate 16A and the nut 52G.
- the anchor main body 52A of the first anchor bolt 52 has an axial diameter larger than that of the anchor main body 26A of the second anchor bolt 26, and the axial length of the anchor main body 52A is the anchor main body of the second anchor bolt 26. It is formed longer than the axial length of 26A.
- the first anchor bolt 52 is formed to have a larger axial diameter and a longer axial length than the second anchor bolt 26.
- the yield deformation of the first anchor bolt 52 is smaller than the yield deformation. Therefore, the yield bending strength of the column structure 50 and the base member 16 can be improved.
- the same operational effects as the operational effects obtained by the column structure 10 and the base member 16 according to the first embodiment can be obtained in addition to the above-described operational effects.
- the arrangement positions of the second fixing holes 20E to 20H as the second fixing portions on the base plate 16A are the second positions in the second embodiment. It is different from the arrangement position of the second fixing holes 20A to 20D as the fixing portion.
- the configurations of the column structure 60 and the base member 16 according to the present embodiment are the same as the configurations of the column structure 40 and the base member 16 according to the second embodiment.
- the second fixing hole 20E in the present embodiment corresponding to the second fixing hole 20A in the second embodiment is provided on the inner side in the width direction (arrow WH direction) of the web 30A than the flange 30B.
- the arrangement position of the second fixing hole 20E coincides with the arrangement position of the first fixing hole 18A.
- a first anchor bolt 42 having a long axial length is inserted into the first fixing hole 18A, and an upper end portion 42C of the first anchor bolt 42 is fixed to the base plate 16A (see FIG. 3).
- a second anchor bolt 26 having a short axial length is inserted into the second fixing hole 20E, and an upper end portion 26C of the second anchor bolt 26 is fixed to the base plate 16A.
- the second fixing hole 20F corresponding to the second fixing hole 20B is provided on the inner side in the width direction of the web 30A than the flange 30B, and the arrangement position of the second fixing hole 20F in the width direction of the web 30A is the first position. It is in agreement with the arrangement position of 1 fixed hole 18B.
- the second fixing hole 20G corresponding to the second fixing hole 20C is provided on the inner side in the width direction of the web 30A than the flange 30B, and the arrangement position of the second fixing hole 20G in the width direction of the web 30A is the first. This is consistent with the arrangement position of the fixing hole 18C.
- the second fixing hole 20H corresponding to the second fixing hole 20D is provided on the inner side in the width direction of the web 30A than the flange 30B, and the arrangement position of the second fixing hole 20H in the width direction of the web 30A is the first fixing hole. It matches the arrangement position of 18D.
- a first anchor bolt 42 is inserted into the first fixing holes 18B to 18D, and an upper end portion 42C of the first anchor bolt 42 is fixed to the base plate 16A.
- a second anchor bolt 26 is inserted into the second fixing holes 20F to 20H, and an upper end portion 26C of the second anchor bolt 26 is fixed to the base plate 16A.
- the base member 16 is fixed to the upper end portion 26C of the second anchor bolt 26 on the inner side in the width direction of the web 30A than the flange 30B. Since the two first anchor bolts 42 and the two second anchor bolts 26 are provided on both sides of the flange 30B as a center, the layout of the first anchor bolts 42 and the second anchor bolts 26 is relaxed. Therefore, the first anchor bolt 42 and the second anchor bolt 26 are avoided, and the reinforcement is easily formed on the foundation 12.
- the same operational effects as the operational effects obtained by the column structure 40 and the base member 16 according to the second embodiment can be obtained in addition to the above-described operational effects.
- this embodiment is applicable to the column structure 10 and the base member 16 according to the first embodiment, or the column structure 50 and the base member 16 according to the third embodiment. That is, the first anchor bolt 42 in the present embodiment is the first anchor bolt 24 in the first embodiment, and is the first anchor bolt 52 in the third embodiment.
- the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.
- four anchor members (fixed portions) are provided along the width direction of the flange at both ends of the base member in the width direction of the web.
- one first anchor member is provided at the center portion in the width direction of the flange
- one second anchor member is provided at each end portion in the width direction of the flange.
- the 1st anchor member and the 2nd anchor member are provided in the width direction of the web, you may provide a 3rd anchor member in the width direction inner side of the 2nd anchor member further.
- the yield deformation is sequentially set to be small from the first anchor member to the third anchor member.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
図1及び図2を用いて、本発明の第1実施形態に係る柱構造及びベース部材を説明する。なお、本実施形態では柱部材にH形鉄骨柱(H形鋼柱)が使用されており、図中に適宜示される矢印WH方向は柱部材のウェブの幅方向を示し、矢印FH方向は柱部材のフランジの幅方向を示している。また、矢印UP方向は上方向を示している。
図1及び図2に示されるように、本実施形態に係る柱構造10は基礎12に設置されている。基礎12は例えばコンクリートであり、基礎12の上面は水平かつ平面状とされている。図示を省略したが、基礎12の内部は配筋されており、基礎12の強度が向上されている。
本実施形態に係る柱構造10及びベース部材16では、図1及び図2に示されるように、ウェブ30Aの幅方向両側にフランジ30Bが一体に設けられた鉄骨柱30がベースプレート16Aの上側に結合される。また、第1アンカーボルト24の下端部24B及び第2アンカーボルト26の下端部26Bが基礎12に固定され、かつベースプレート16Aが第1アンカーボルト24の上端部24C及び第2アンカーボルト26の上端部26Cに固定される。
図3を用いて、本発明の第2実施形態に係る柱構造及びベース部材を説明する。なお、本実施形態並びに後述する他の実施形態において、第1実施形態に係る柱構造10及びベース部材16の構成と同一の構成には同一符号を付し、この構成の説明は重複するので省略する。
図3に示されるように、本実施形態に係る柱構造40及びベース部材16では、第1アンカー部材としての第1アンカーボルト42の構成が、第1実施形態における第1アンカーボルト24の構成に対して異なる。これ以外の構成において、本実施形態に係る柱構造40及びベース部材16の構成は、第1実施形態に係る柱構造10及びベース部材16の構成と同一である。
本実施形態に係る柱構造40及びベース部材16では、第1アンカーボルト42が第2アンカーボルト26よりも軸方向長さが長く形成されているので、第2アンカーボルト26の降伏変形が第1アンカーボルト42の降伏変形よりも小さくなる。従って、柱構造40及びベース部材16の降伏曲げ耐力を向上させることができる。
図4を用いて、本発明の第3実施形態に係る柱構造及びベース部材を説明する。
図4に示されるように、本実施形態に係る柱構造50及びベース部材16では、第1アンカー部材としての第1アンカーボルト52の構成が、第1実施形態における第1アンカーボルト24の構成に対して異なる。これ以外の構成において、本実施形態に係る柱構造50及びベース部材16の構成は、第1実施形態に係る柱構造10及びベース部材16の構成と同一である。
本実施形態に係る柱構造50及びベース部材16では、第1アンカーボルト52が第2アンカーボルト26よりも軸径が大きく、かつ軸方向長さが長く形成されているので、第2アンカーボルト26の降伏変形が第1アンカーボルト52の降伏変形よりも小さくなる。従って、柱構造50及びベース部材16の降伏曲げ耐力を向上させることができる。
図5を用いて、本発明の第4実施形態に係る柱構造及びベース部材を説明する。本実施形態は、第2実施形態に係る柱構造40及びベース部材16の変形例である。
図5に示されるように、本実施形態に係る柱構造60及びベース部材16では、第2固定部としての第2固定孔20E~20Hのベースプレート16Aにおける配置位置が、第2実施形態における第2固定部としての第2固定孔20A~20Dの配置位置と異なる。これ以外の構成において、本実施形態に係る柱構造60及びベース部材16の構成は、第2実施形態に係る柱構造40及びベース部材16の構成と同一である。
本実施形態に係る柱構造60及びベース部材16では、ベース部材16がフランジ30Bよりもウェブ30Aの幅方向内側において第2アンカーボルト26の上端部26Cに固定される。フランジ30Bを中心としてその両側に2個の第1アンカーボルト42及び2個の第2アンカーボルト26が設けられるので、第1アンカーボルト42及び第2アンカーボルト26の配置レイアウトが緩和される。このため、第1アンカーボルト42及び第2アンカーボルト26を避けて、基礎12に配筋が形成し易くなる。
本発明は、上記実施形態に限定されるものではなく、要旨を逸脱しない範囲において、種々変更可能である。例えば、上記実施形態では、ベース部材においてウェブの幅方向の両端部に、フランジの幅方向に沿ってそれぞれ4つのアンカー部材(固定部)が設けられている。本発明では、ベース部材の長手方向の一端部、他端部にそれぞれ3つ以上のアンカー部材が設けられていればよい。最小の3つのアンカー部材の場合、フランジの幅方向の中央部に1つの第1アンカー部材が設けられると共に、フランジの幅方向の両端部に各々1つの第2アンカー部材が設けられる。
12 基礎
16 ベース部材
16A ベースプレート(ベース本体)
18A~18D 第1固定孔(第1固定部)
20A~20H 第2固定孔(第2固定部)
22 凹部
24、42、52 第1アンカーボルト(第1アンカー部材)
26 第2アンカーボルト(第2アンカー部材)
30 鉄骨柱(柱部材)
30A ウェブ
30B フランジ
Claims (8)
- ウェブの幅方向両側にフランジが一体に設けられた柱部材と、
前記柱部材が上側に結合されるベース部材と、
基礎に下端側が固定されると共に、前記ベース部材において前記フランジの前記ウェブ側とは反対側に上端側が固定される第1アンカー部材と、
前記基礎に下端側が固定されると共に、前記ベース部材において前記第1アンカー部材よりも前記ウェブの幅方向内側に上端側が固定され、かつ前記第1アンカー部材よりも降伏変形が小さい第2アンカー部材と、
を備えた柱構造。 - 前記第1アンカー部材は、前記第2アンカー部材よりも強度が高い材料により形成されている請求項1に記載の柱構造。
- 前記第1アンカー部材は、前記第2アンカー部材よりも軸方向長さが長く形成されている請求項1又は請求項2に記載の柱構造。
- 前記第2アンカー部材は、前記第1アンカー部材よりも前記フランジに近接されている請求項1~請求項3のいずれか1項に記載の柱構造。
- 前記ベース部材の下側に凹部が設けられている請求項1~請求項4のいずれか1項に記載の柱構造。
- ウェブの幅方向両側にフランジが一体に設けられた柱部材が上側に結合されるベース本体と、
前記ベース本体において前記フランジの前記ウェブ側とは反対側に設けられ、基礎に下端側が固定される第1アンカー部材の上端側に固定される第1固定部と、
前記ベース本体において前記第1固定部よりも前記ウェブの幅方向内側に設けられ、前記基礎に下端側が固定され、かつ前記第1アンカー部材よりも降伏変形が小さい第2アンカー部材の上端側に固定される第2固定部と、
を備えたベース部材。 - 前記第2固定部は、前記第1固定部よりも前記フランジに近接されている請求項6に記載のベース部材。
- 前記ベース本体の下側に凹部が設けられている請求項6又請求項7に記載のベース部材。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/345,948 US9212486B2 (en) | 2014-03-17 | 2014-03-17 | Column structure and base member |
JP2014513828A JP5906557B2 (ja) | 2014-03-17 | 2014-03-17 | 柱構造及びベース部材 |
PCT/JP2014/057081 WO2015140891A1 (ja) | 2014-03-17 | 2014-03-17 | 柱構造及びベース部材 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2014/057081 WO2015140891A1 (ja) | 2014-03-17 | 2014-03-17 | 柱構造及びベース部材 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015140891A1 true WO2015140891A1 (ja) | 2015-09-24 |
Family
ID=54068339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/057081 WO2015140891A1 (ja) | 2014-03-17 | 2014-03-17 | 柱構造及びベース部材 |
Country Status (3)
Country | Link |
---|---|
US (1) | US9212486B2 (ja) |
JP (1) | JP5906557B2 (ja) |
WO (1) | WO2015140891A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2394000B1 (en) * | 2009-02-04 | 2020-07-22 | Thomas M. Espinosa | Concrete anchor |
DE102015004828A1 (de) * | 2015-04-14 | 2016-10-20 | Liebherr-Werk Biberach Gmbh | Fundamentverankerung für Arbeitsmaschine |
CN108360550B (zh) * | 2018-02-28 | 2019-12-03 | 五冶集团上海有限公司 | 一种钢结构直埋地脚螺栓施工方法 |
CA180058S (en) * | 2018-03-02 | 2019-03-01 | John Rene Spronken | Crane base fastener |
CN108532625A (zh) * | 2018-04-27 | 2018-09-14 | 湘电风能有限公司 | 一种风力发电机组基础 |
CN110144927B (zh) * | 2019-06-20 | 2023-12-22 | 中国五冶集团有限公司 | 一种预埋地脚螺栓群的装置 |
CA3159340A1 (en) * | 2019-10-31 | 2021-05-06 | Gtk Gewindetechnik Kleymann Gmbh & Co. Kg | Anchoring device, anchorage comprising an anchoring device, and method for producing the anchorage |
CN110847502B (zh) * | 2019-12-20 | 2024-04-05 | 中建一局集团建设发展有限公司 | 一种基础底板钢柱安装支撑构造及施工方法 |
CN115324122B (zh) * | 2022-08-30 | 2023-09-29 | 海通建设集团有限公司 | 一种机械扩径型抗浮锚杆 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003232078A (ja) * | 2001-12-06 | 2003-08-19 | Hitachi Metals Techno Ltd | 柱脚金物 |
JP2006125157A (ja) * | 2004-11-01 | 2006-05-18 | Okabe Co Ltd | 柱脚構造 |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1530951A (en) * | 1924-08-26 | 1925-03-24 | Earl W Krauss | Trolley and telegraph pole |
US3918229A (en) * | 1974-05-28 | 1975-11-11 | Manfred P Schweinberger | Column base assembly |
US5054251A (en) * | 1986-07-24 | 1991-10-08 | Kemeny Zoltan A | Structural shock isolation system |
US5063719A (en) * | 1988-09-07 | 1991-11-12 | Hitachi Metals, Ltd. | Column base structure |
JPH0452320A (ja) * | 1990-06-20 | 1992-02-20 | Hitachi Metals Ltd | 柱脚 |
JPH05214731A (ja) * | 1991-12-10 | 1993-08-24 | Sumitomo Ringyo Kk | 柱脚固定装置 |
JP2655774B2 (ja) | 1991-12-28 | 1997-09-24 | 大和ハウス工業株式会社 | 柱脚構造 |
JPH07103608B2 (ja) * | 1992-06-24 | 1995-11-08 | 大和ハウス工業株式会社 | 柱脚構造 |
JP3084654B2 (ja) * | 1996-03-29 | 2000-09-04 | サンベース株式会社 | 構築用基礎及びこれを用いた基礎構造並びにこれらの施工方法 |
JPH108555A (ja) * | 1996-06-19 | 1998-01-13 | Hitachi Metals Ltd | 鉄骨柱脚 |
US8397454B2 (en) * | 1997-11-21 | 2013-03-19 | Simpson Strong-Tie Company, Inc. | Building wall for resisting lateral forces |
JPH11286945A (ja) | 1998-04-02 | 1999-10-19 | Hitachi Metals Ltd | 柱脚構造 |
US20020056250A1 (en) * | 2000-04-24 | 2002-05-16 | Cash David W. | Method and apparatus for increasing the capacity and stability of a single-pole tower |
JP2002146923A (ja) | 2000-11-15 | 2002-05-22 | Kawasaki Steel Corp | 露出柱脚の定着構造 |
US6453634B1 (en) * | 2000-12-01 | 2002-09-24 | Simpson Strong-Tie Company, Inc. | Moment-resisting strap connection |
JP2002339455A (ja) * | 2001-05-11 | 2002-11-27 | Takenaka Komuten Co Ltd | 露出型固定柱脚の評価方法および評価装置 |
US6931804B2 (en) * | 2001-06-21 | 2005-08-23 | Shear Force Wall Systems Inc. | Prefabricated shearwall having improved structural characteristics |
JP2003239381A (ja) * | 2002-02-14 | 2003-08-27 | Artes:Kk | 基礎コンクリートと鉄骨柱脚との接合装置 |
TW541388B (en) | 2002-09-16 | 2003-07-11 | Shang-Ling Jiang | A building foundation construction method |
JP4284056B2 (ja) * | 2002-11-28 | 2009-06-24 | 岡部株式会社 | 非埋込み型柱脚の施工方法及びその非埋込み型柱脚構造 |
JP4041433B2 (ja) | 2003-06-27 | 2008-01-30 | 岡部株式会社 | 露出型鉄骨柱脚 |
JP2008144425A (ja) * | 2006-12-07 | 2008-06-26 | Daiwa House Ind Co Ltd | 位置決め治具 |
JP4975543B2 (ja) * | 2007-07-18 | 2012-07-11 | 新日本製鐵株式会社 | 鉄骨柱の柱脚固定構造 |
JP2009062717A (ja) * | 2007-09-06 | 2009-03-26 | Union Kenzai Builder:Kk | 柱脚部の固定構造、鋼管柱材、該鋼管柱材を備えたパネル体 |
ES2293860B1 (es) * | 2007-10-01 | 2009-02-01 | Hierros Y Aplanaciones, S.A. (Hiasa) | Sistema de anclaje fusible directo para poste de soporte de una barrera de seguridad o pretil en un terreno rigido. |
JP5135034B2 (ja) * | 2008-04-11 | 2013-01-30 | 岡部株式会社 | 露出型柱脚構造 |
JP5279115B2 (ja) * | 2008-05-14 | 2013-09-04 | 岡部株式会社 | 柱脚用ベースプレート及びこれを用いた柱脚構造 |
US20120186168A1 (en) * | 2008-08-09 | 2012-07-26 | Elite Construction | Perforating gun loading and storage facility |
JP2011012402A (ja) * | 2009-06-30 | 2011-01-20 | Nippon Chuzo Kk | 鉄骨柱脚部の固定構造 |
JP5727162B2 (ja) * | 2010-06-24 | 2015-06-03 | 岡部株式会社 | 露出型柱脚用ベースプレート |
JP5620165B2 (ja) | 2010-06-24 | 2014-11-05 | 岡部株式会社 | 露出型柱脚部接合構造 |
-
2014
- 2014-03-17 US US14/345,948 patent/US9212486B2/en active Active
- 2014-03-17 JP JP2014513828A patent/JP5906557B2/ja active Active
- 2014-03-17 WO PCT/JP2014/057081 patent/WO2015140891A1/ja active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003232078A (ja) * | 2001-12-06 | 2003-08-19 | Hitachi Metals Techno Ltd | 柱脚金物 |
JP2006125157A (ja) * | 2004-11-01 | 2006-05-18 | Okabe Co Ltd | 柱脚構造 |
Also Published As
Publication number | Publication date |
---|---|
US9212486B2 (en) | 2015-12-15 |
JP5906557B2 (ja) | 2016-04-20 |
JPWO2015140891A1 (ja) | 2017-04-06 |
US20150259915A1 (en) | 2015-09-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5906557B2 (ja) | 柱構造及びベース部材 | |
WO2015140890A1 (ja) | 柱構造及びベース部材 | |
US9758963B2 (en) | Bearing wall and wall surface member for bearing wall | |
WO2015140889A1 (ja) | 柱構造及びベース部材 | |
JP6394239B2 (ja) | 連結柱 | |
KR20140122460A (ko) | 고강도 중공 콘크리트 말뚝의 연결구조 및 연결시공방법 | |
JP5956894B2 (ja) | 柱脚金物及びそれを用いた柱脚構造 | |
JP5510597B1 (ja) | 円形環補強梁部材 | |
JP6536323B2 (ja) | 鋼矢板の縦継構造及び鋼矢板壁 | |
JP5021246B2 (ja) | 座屈補剛ブレース | |
JP2017214717A (ja) | 柱梁接合部と梁との連結構造 | |
JP5931185B2 (ja) | 柱構造及びベース部材 | |
JP2007113302A (ja) | 合成梁構造 | |
KR101198116B1 (ko) | 교량용 강재 거더 | |
JP5492163B2 (ja) | 鉄筋コンクリート造壁柱 | |
TWI575136B (zh) | 柱構造及底構件 | |
WO2015140894A1 (ja) | 柱構造及びベース部材 | |
JP2019157598A (ja) | 鋼板耐震壁及びそれを備えた鋼板耐震壁構造 | |
JP6302177B2 (ja) | 座屈拘束ブレース、柱梁接続部の補強構造及び建物 | |
TWI583851B (zh) | 柱構造及底構件 | |
JP5110482B1 (ja) | 複層円形金属平板の円形環枠組構造 | |
TWI539061B (zh) | 柱構造及底構件 | |
JP2015161124A (ja) | 鉄骨梁の補剛構造 | |
JP2015094184A (ja) | 耐震改修工法 | |
JP2020139270A (ja) | 耐力壁及び壁面材 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2014513828 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14345948 Country of ref document: US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14886566 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 14886566 Country of ref document: EP Kind code of ref document: A1 |