WO2015140890A1 - 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
- WO2015140890A1 WO2015140890A1 PCT/JP2014/057080 JP2014057080W WO2015140890A1 WO 2015140890 A1 WO2015140890 A1 WO 2015140890A1 JP 2014057080 W JP2014057080 W JP 2014057080W WO 2015140890 A1 WO2015140890 A1 WO 2015140890A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base
- flange
- web
- anchor
- width direction
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 abstract description 24
- 239000010959 steel Substances 0.000 abstract description 24
- 239000004570 mortar (masonry) Substances 0.000 description 13
- 238000005452 bending Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 9
- 238000000926 separation method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000002184 metal Substances 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
- 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
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/24—Foundations constructed by making use of diving-bells
-
- 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
- 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
- E02D27/50—Anchored foundations
-
- 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
-
- 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
-
- 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
- E04B2001/2415—Brackets, gussets, joining plates
-
- 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
- E04B2001/2418—Details of bolting
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/22—Sockets or holders for poles or posts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
- F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
- F24S25/61—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing to the ground or to building structures
- F24S25/617—Elements driven into the ground, e.g. anchor-piles; Foundations for supporting elements; Connectors for connecting supporting structures to the ground or to flat horizontal surfaces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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.
- a support column is fixed to the upper side of a base plate, and the column member is formed into an H-shaped steel by integrally providing flanges on both sides in the width direction of the web.
- the base plate is only fastened to the upper plate on the web side of the flange and the side opposite to the web.
- the present invention can effectively exhibit the column base structure capable of effectively exhibiting the proof strength of the column base and reduce the wall thickness of the base member, and can effectively demonstrate the proof strength of the column base, and the wall thickness of the base body. It is an object to obtain a base member capable of reducing the size.
- 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, and a first anchor portion attached to the lower end side.
- the lower end side is locked to the concrete
- the first anchor member is fixed to the upper end side of the flange on the side opposite to the web of the flange
- the second anchor portion is attached to the lower end side of the concrete.
- a second anchor member fixed to the upper end side of the base member on the web side of the flange.
- the columnar structure of the second aspect of the present invention is the columnar structure of the first aspect of the present invention, wherein the base member is at the upper end side of at least one of the first anchor member and the second anchor member on the outer side in the width direction of the flange. Fixed to.
- the columnar structure according to the third aspect of the present invention is the columnar structure according to the first aspect or the second aspect of the present invention, wherein a recess is provided on the lower surface of the base member.
- the columnar structure according to a fourth aspect of the present invention is the columnar structure according to any one of the first to third aspects of the present invention, wherein the base member includes a base portion provided on each flange side and a pair of the bases And a lacking portion provided between the pair of base portions.
- a columnar structure according to a fifth aspect of the present invention is the columnar structure according to any one of the first to third aspects of the present invention, wherein the base member is provided on each flange side and a gap is provided therebetween. .
- a columnar structure according to a sixth aspect of the present invention is the columnar structure according to the fifth aspect of the present invention, comprising a protrusion provided on the base member and protruding toward the web side of the flange on the lower side of the web. Yes.
- a base member includes: a base body in which a pillar member integrally provided with flanges on both sides in the width direction of the web is coupled to the upper side; and the base body opposite to the web of the flange.
- a first anchor portion provided on the lower end side and fixed to the upper end side of the first anchor member, the lower end side of which is locked to the concrete, and the base body on the web side of the flange;
- a second fixing portion fixed to the upper end side of the second anchor member, the second anchor portion being attached to the lower end side and locking the lower end side to the concrete.
- the base member according to an eighth aspect of the present invention is the base member according to the seventh aspect of the present invention, wherein at least one of the first fixing portion and the second fixing portion is disposed outside the flange in the width direction.
- the base member according to the ninth aspect of the present invention is the base member according to the seventh aspect or the eighth aspect of the present invention, wherein a recess is provided on the lower surface of the base main body.
- the base member according to a tenth aspect of the present invention is the column structure according to any one of the seventh aspect to the ninth aspect of the present invention, wherein the base body includes a base portion provided on each flange side and a pair of the bases And a lacking portion provided between the pair of base portions.
- the base member according to an eleventh aspect of the present invention is the column structure according to any one of the seventh to ninth aspects of the present invention, wherein the base body is provided on each flange side, and a gap is provided therebetween. .
- a base member according to a twelfth aspect of the present invention is the base member according to the eleventh aspect of the present invention, comprising a protrusion provided on the base body and protruding toward the web side of the flange on the lower side of the web. Yes.
- 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.
- first anchor member and the second anchor member are attached to the lower ends of the first anchor member and the second anchor member, respectively, and the lower ends of the first anchor member and the second anchor member are locked to the concrete.
- the base member is fixed to the upper end side of the first anchor member and the second anchor member on the side opposite to the web of the flange and the web side, respectively. For this reason, it is possible to efficiently exhibit the proof strength (proof strength against the bending moment) of the column base (which is a transmission portion of the bending moment from the column member to the concrete and includes the base member, the first anchor member, and the second anchor member). At the same time, the thickness of the base member can be reduced.
- the base member is fixed to the upper end side of at least one of the first anchor member and the second anchor member on the outer side in the width direction of the flange. For this reason, the proof stress of a column base can be exhibited more efficiently.
- a recess is provided on the lower surface of the base member. For this reason, the shift
- a base portion is provided on each flange side, and the connection portion connects the pair of base portions.
- the base member is provided on each flange side, and a gap is provided between the pair of base members. For this reason, each base member can be made small and the total weight of a pair of base members can be made small. And since a web is arrange
- the protrusion provided on the base member protrudes on the web side of the flange on the lower side of the web. For this reason, a web can be couple
- 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 first anchor member and the second anchor member are attached to the lower ends of the first anchor member and the second anchor member, respectively, and the lower ends of the first anchor member and the second anchor member are locked to the concrete.
- the base body is fixed to the upper ends of the first anchor member and the second anchor member at the first fixing portion on the opposite side of the flange web and the second fixing portion on the web side of the flange, respectively.
- the proof strength against the bending moment
- the column base which is a transmission portion of the bending moment from the column member to the concrete and includes the base member, the first anchor member, and the second anchor member.
- the thickness of the base body can be reduced.
- At least one of the first fixing portion and the second fixing portion is disposed outside the flange in the width direction. For this reason, the proof stress of a column base can be exhibited more efficiently.
- the lower surface of the base body is provided with a recess. For this reason, the shift
- a base portion is provided on each flange side, and the connection portion connects the pair of base portions.
- the base body is provided on each flange side, and a gap is provided between the pair of base bodies. For this reason, each base main body can be made small and the total weight of a pair of base main bodies can be made small. And since a web is arrange
- the protrusion provided on the base body protrudes toward the web side of the flange on the lower side of the web. For this reason, a web can be couple
- FIG. 1 shows a cross-sectional view of a pillar structure 10 according to the first embodiment of the present invention as viewed from the front
- FIG. 2 shows a pillar structure 10 in a plan view.
- the front side is indicated by an arrow FR
- the right side is indicated by an arrow RH
- the upper side is indicated by an arrow UP.
- the column structure 10 As shown in FIGS. 1 and 2, the column structure 10 according to the present embodiment is installed on a foundation concrete 12 as concrete, and the upper surface of the foundation concrete 12 is made flat and perpendicular to the vertical direction. Has been placed.
- the mortar 14 as a fixing means is fixed on the upper surface of the foundation concrete 12, and the mortar 14 is provided in a rectangular shape in plan view.
- a metal base plate 16 as a base member and a base body is fixed to the upper surface of the mortar 14, and the mortar 14 is disposed on the entire lower side of the base plate 16.
- the base plate 16 has a rectangular flat plate shape, and the base plate 16 has a longitudinal direction and a width direction arranged in parallel to the left-right direction and the front-rear direction, respectively, and the left-right dimension is larger than the front-rear dimension.
- a pair of circular first fixing holes 18 as first fixing portions are formed in the left and right side portions of the base plate 16 in the central portion in the front-rear direction, and the axial direction of the first fixing hole 18 is , Parallel to the vertical direction.
- the left-right position of the pair of left first fixing holes 18 (center axis) and the left-right position of the right pair of first fixing holes 18 (center axis) are respectively matched, and the pair of left first fixing holes
- the hole 18 (center axis) and the pair of first fixing holes 18 (center axis) on the right side are arranged symmetrically with respect to a vertical plane that passes through the center of the base plate 16 in the left-right direction and is perpendicular to the left-right direction.
- the front-rear direction position of the pair of front first fixing holes 18 (center axis) and the front-rear direction position of the pair of rear first fixing holes 18 (center axis line) are the same, and the pair of front first pairs
- the fixing hole 18 (center axis) and the pair of first fixing holes 18 (center axis) on the rear side are arranged symmetrically with respect to a vertical plane passing through the center of the base plate 16 in the front-rear direction and perpendicular to the front-rear direction. .
- a pair of circular second fixing holes 20 as second fixing portions are formed in the left and right side portions of the base plate 16 in the front-rear direction outer portion, respectively, and the axial direction of the second fixing holes 20 is Parallel to the vertical direction.
- the left-right position of the left pair of second fixing holes 20 (center axis) and the left-right position of the right pair of second fixing holes 20 (center axis) are respectively matched, and the left pair of second fixing holes 20
- the hole 20 (center axis) and the pair of second fixing holes 20 (center axis) on the right side are arranged symmetrically with respect to a vertical plane that passes through the center of the base plate 16 in the left-right direction and is perpendicular to the left-right direction.
- the front-rear direction position of the pair of front second fixing holes 20 (center axis) and the front-rear direction position of the pair of rear second fixing holes 20 (center axis line) are respectively matched, and the pair of second second holes on the front side.
- the fixing hole 20 (center axis) and the pair of second fixing holes 20 (center axis) on the rear side are arranged symmetrically with respect to a vertical plane passing through the center of the base plate 16 in the front-rear direction and perpendicular to the front-rear direction. .
- the pair of left second fixing holes 20 (center axis) is arranged on the right side (the center in the left-right direction of the base plate 16) with respect to the pair of left first fixing holes 18 (center axis).
- the second fixing hole 20 (center axis) is disposed on the left side (the center side in the left-right direction of the base plate 16) with respect to the pair of right first fixing holes 18 (center axis).
- a recess 22 is formed on the lower surface of the base plate 16 around each of the first fixing holes 18 and the second fixing holes 20.
- the upper surface (bottom surface) of the recess 22 is flat and extends vertically. It is arranged vertically.
- the concave portion 22 has a substantially triangular shape in plan view, and the width dimension is gradually increased toward the outer peripheral side of the base plate 16.
- the concave portion 22 is opened to the outer peripheral side of the base plate 16.
- the peripheral surface of the concave portion 22 is disposed vertically in the horizontal direction, and the peripheral surface of the central end portion of the base plate 16 of the concave portion 22 is flush with the peripheral surface of the first fixing hole 18 or the second fixing hole 20. ing.
- the entire recess 22 is filled with mortar 14, and the base plate 16 is locked to the mortar 14 in the horizontal direction by the peripheral surface of the recess 22.
- first anchor bolt 24 as a first anchor member and a second anchor bolt 26 as a second anchor member are fixed to the foundation concrete 12.
- the first anchor bolt 24, the second anchor bolt 26, are configured identically.
- the first anchor bolt 24 and the second anchor bolt 26 are provided with a columnar anchor main body 28.
- the anchor main body 28 has an axial direction arranged parallel to the vertical direction, and a portion other than the upper end portion is a foundation. While being embedded in the concrete 12, the upper end portion is penetrated by the mortar 14.
- a locking nut 30 having an outer shape of a cylindrical shape constituting the first anchor portion or the second anchor portion is screwed coaxially with the lower end portion of the anchor main body 28, and the lower end portion of the anchor main body 28 is Immediately above the locking nut 30, it is coaxially penetrated by the annular flat plate-shaped fixing plate 32 constituting the first anchor portion or the second anchor portion. 30 and a fixing plate 32 are attached.
- the locking nut 30 and the fixing plate 32 protrude outward in the radial direction of the anchor main body 28 and are embedded in the foundation concrete 12, and the first anchor bolt 24 and the second anchor bolt 26 include the locking nut 30 and The fixing plate 32 locks the foundation concrete 12 in the vertical direction.
- the upper end portion of the anchor main body 28 in the first anchor bolt 24 is coaxially penetrated through the first fixing hole 18 of the base plate 16, and the upper end portion of the anchor main body 28 in the second anchor bolt 26 is the second end of the base plate 16.
- the fixing hole 20 is coaxially penetrated.
- An outer shape polygonal cylindrical fixing nut 34 is coaxially screwed to the upper end portion of the anchor main body 28, and the upper end portion of the anchor main body 28 is directly below the fixing nut 34 and has an annular flat plate washer 36.
- the fixing nut 34 and the washer 36 are attached to the outer periphery of the upper end portion of the anchor main body 28.
- a washer 36 and a base plate 16 are sandwiched between the fixing nut 34 and the mortar 14, and the base plate 16 is fixed to the first anchor bolt 24 in the first fixing hole 18 and in the second fixing hole 20. It is fixed to the second anchor bolt 26.
- the lower end of a steel column 38 as a column member is welded (coupled) to the upper surface of the base plate 16 at the center portion, and the longitudinal direction of the steel column 38 is arranged parallel to the vertical direction.
- the steel column 38 is provided with a long rectangular flat plate-shaped web 38 ⁇ / b> A.
- the web 38 ⁇ / b> A is disposed in the width direction parallel to the left-right direction at the center in the front-rear direction of the base plate 16, and the center in the width direction is the base plate 16. Is aligned with the center of the horizontal direction.
- a long rectangular flat plate-like flange 38B is integrally provided at both ends of the web 38A in the width direction, and the flange 38B is arranged in the left and right sides of the base plate 16 so that the width direction is parallel to the front-rear direction. Yes.
- the flange 38B is connected to the web 38A at the center in the width direction, and the flange 38B extends forward and backward with respect to the web 38A. For this reason, the steel column 38 has an H-shaped cross section as viewed from the vertical direction.
- the central axes of the first fixing holes 18 and the first anchor bolts 24 are disposed on the opposite side of the web 38A of the flange 38B and on the inner side in the width direction of the flange 38B.
- the central axes of the hole 20 and the second anchor bolt 26 are disposed on the web 38A side of the flange 38B and on the outer side in the width direction of the flange 38B.
- a plurality of column structures 10 are provided in the building, and a foundation beam (not shown) is spanned between the lower ends of the steel columns 38 in the adjacent column structure 10 so that the foundation beam main reinforcement is Arranged.
- the steel column 38 is welded to the upper surface of the base plate 16, and the steel column 38 is integrally provided with flanges 38B at both ends in the width direction (left-right direction) of the web 38A.
- the base plate 16 is fixed to the first anchor bolt 24 in the first fixing hole 18 and is fixed to the second anchor bolt 26 in the second fixing hole 20.
- the total number of the first anchor bolts 24 and the second anchor bolts 26 (the first fixing holes 18 and the first fixing holes 18 and the second anchor bolts 26) whose center axis is disposed on the opposite side of the flange 38B from the web 38A. 2 (equal to the total number of the fixing holes 20) is n (2 in this embodiment), and the yield tensile strength in the axial direction of the i-th first anchor bolt 24 or the second anchor bolt 26 (i-th anchor body 28).
- the center axis of the i-th first anchor bolt 24 or the second anchor bolt 26 (i-th anchor body 28) (equal to the center axis of the i-th first fixing hole 18 or the second fixing hole 20).
- the distance away from the flange 38B in the width direction outward of the web 38A is Li.
- the longitudinal dimension (width dimension) of the base plate 16 is B
- the thickness dimension of the base plate 16 is t
- the yield point of the base plate 16 material is ⁇ .
- the base plate 16 needs to satisfy the following formula 1.
- first anchor bolt 24 and the second anchor bolt 26 are locked to the foundation concrete 12 in the vertical direction by the locking nut 30 and the fixing plate 32. Further, on the left side and the right side of the base plate 16, the first anchor bolt 24 (first fixing hole 18) is disposed on the opposite side of the flange 38B from the web 38A, and the second anchor bolt 26 (second fixing hole). 20) is arranged on the web 38A side of the flange 38B.
- the first anchor causes bending deformation on the outer side in the width direction of the web 38A. It can be suppressed by the bolt 24 and the second anchor bolt 26, and is a column base (a transmitting portion of the bending moment from the steel column 38 to the foundation concrete 12, and the base plate 16, the mortar 14, the first anchor bolt 24 and the second anchor bolt 26 are ) (Including the bending moment) can be efficiently exhibited.
- first fixing hole 18 only the center axis of the first anchor bolt 24 (first fixing hole 18) is arranged on the opposite side of the flange 38B from the web 38A, and the center axis of the second anchor bolt 26 (second fixing hole 20) is By not being arranged, the left side of Equation 1 can be reduced, and the right side of Equation 1 can be reduced. Thereby, the thickness dimension t of the base plate 16 can be made small.
- first anchor bolt 24 (first fixing hole 18) is disposed inside the flange 38B in the width direction
- second anchor bolt 26 (second fixing hole 20) is disposed outside the flange 38B in the width direction. Yes. Therefore, even when a rotational moment in the width direction (front-rear direction) of the flange 38B centering on the lower end is applied to the steel column 38 during an earthquake or the like, the bending deformation of the base plate 16 on the outer side in the width direction of the flange 38B is prevented. It can suppress by the volt
- the base plate 16 is locked to the mortar 14 in the horizontal direction by the peripheral surface of the recess 22. For this reason, even when a load in the horizontal direction is applied to the base plate 16 during an earthquake or the like, the shift of the base plate 16 in the horizontal direction can be suppressed. Thereby, the shear strength of the steel column 38, the 1st anchor bolt 24, and the 2nd anchor bolt 26 can be improved.
- the separation distance in the front-rear direction and the left-right direction between the first anchor bolt 24 and the second anchor bolt 26 that are provided next to each other can be increased.
- a base beam main reinforcement can be easily arranged between the lower end parts of the steel column 38 in the column structure 10 provided adjacently in a building, and workability can be improved.
- FIG. 3 is a plan view showing a column structure 50 according to the second embodiment of the present invention.
- the column structure 50 according to the present embodiment has substantially the same configuration as that of the first embodiment, but differs in the following points.
- the central axes of the first fixing hole 18 and the first anchor bolt 24 are arranged on the outer side in the width direction of the flange 38B on the left side and the right side of the base plate 16.
- the central axes of the second fixing hole 20 and the second anchor bolt 26 are arranged on the inner side in the width direction of the flange 38B.
- the recess 22 is not formed on the lower surface of the base plate 16 around each second fixing hole 20.
- first anchor bolt 24 (first fixing hole 18) is disposed on the outer side in the width direction of the flange 38B
- second anchor bolt 26 is disposed on the inner side in the width direction of the flange 38B.
- FIG. 4 shows a plan view of a column structure 60 according to a third embodiment of the present invention.
- the column structure 60 according to the present embodiment has substantially the same configuration as that of the first embodiment, but differs in the following points.
- the center axis of the second fixing hole 20 and the second anchor bolt 26 is arranged on the inner side in the width direction of the flange 38B on the left side and the right side of the base plate 16.
- the center axis of the first fixing hole 18 and the first anchor bolt 24 and the center axis of the second fixing hole 20 and the second anchor bolt 26 coincide with each other in the front-rear direction on the front side portion and the rear side portion of the base plate 16.
- the recess 22 is not formed on the lower surface of the base plate 16 around each second fixing hole 20.
- first anchor bolt 24 and the second anchor that are provided adjacent to the operation and effect of the second anchor bolt 26 being arranged on the outer side in the width direction of the flange 38B. Except for the action and effect obtained by increasing the distance between the bolt 26 in the front-rear direction and the left-right direction, the same action and effect as in the first embodiment can be achieved.
- the center axis of the first fixing hole 18 and the first anchor bolt 24 and the center axis of the second fixing hole 20 and the second anchor bolt 26 are arranged on the inner side in the width direction of the flange 38B.
- the center axis of the first fixing hole 18 and the first anchor bolt 24 and the center axis of the second fixing hole 20 and the second anchor bolt 26 may be arranged on the outer side in the width direction of the flange 38B.
- the recess 22 may be formed on the lower surface of the base plate 16 around the second fixing hole 20.
- the front and rear sides of the base plate 16 are front and rear with respect to the center axis of the first fixing hole 18 and the first anchor bolt 24 and the center axis of the second fixing hole 20 and the second anchor bolt 26.
- the direction position was matched.
- the position in the front-rear direction between the central axis of the first fixing hole 18 and the first anchor bolt 24 and the central axis of the second fixing hole 20 and the second anchor bolt 26. May be different.
- a pair of the first fixing hole 18 and the first anchor bolt 24 are provided on the right side and the left side of the base plate 16, respectively.
- three or more first fixing holes 18 and three or more first anchor bolts 24 may be provided in at least one of the right side portion and the left side portion of the base plate 16.
- FIG. 5 shows a plan view of a column structure 70 according to a fourth embodiment of the present invention.
- the pillar structure 70 according to the present embodiment has substantially the same configuration as that of the first embodiment, but differs in the following points.
- one first fixing hole 18 and one first anchor bolt 24 are provided on the left side and the right side of the base plate 16, respectively. 18 and the center axis of the first anchor bolt 24 and the center of the web 38A in the thickness direction (front-rear direction) are aligned in the front-rear direction. Further, the central axes of the second fixing hole 20 and the second anchor bolt 26 are disposed on the inner side in the width direction of the flange 38B.
- the recess 22 is not formed on the lower surface of the base plate 16 around each second fixing hole 20.
- the central axes of the second fixing hole 20 and the second anchor bolt 26 are arranged on the inner side in the width direction of the flange 38B.
- the central axes of the second fixing hole 20 and the second anchor bolt 26 may be disposed on the outer side in the width direction of the flange 38B.
- the recess 22 may be formed on the lower surface of the base plate 16 around the second fixing hole 20.
- the front-rear direction positions of the center axis of the first fixing hole 18 and the first anchor bolt 24 and the center of the web 38A in the thickness direction are matched.
- the longitudinal positions of the central axis of the first fixing hole 18 and the first anchor bolt 24 and the center in the thickness direction of the web 38A may be different.
- FIG. 6 is a plan view showing a column structure 100 according to a fifth embodiment of the present invention.
- the column structure 100 according to the present embodiment has substantially the same configuration as that of the third embodiment, but differs in the following points.
- a rectangular flat plate-like base portion 16A is provided on the left and right sides of the base plate 16, and a rectangular flat plate-like shape is provided between the pair of base portions 16A.
- a connecting portion 16D is provided, and the mortar 14 is disposed on the entire lower side of the pair of base portions 16A and the connecting portion 16D.
- the connecting portion 16D has a longitudinal direction arranged in parallel to the left-right direction, and connects the pair of base portions 16A. Between the pair of base portions 16A, the width direction (front-rear direction) of the connecting portion 16D is on both outer sides.
- a missing portion 16E having a rectangular shape in plan view is formed.
- the pair of base portions 16A, the connecting portion 16D, and the pair of missing portions 16E are arranged symmetrically with respect to a vertical plane perpendicular to the left-right direction passing through the center of the base plate 16 in the left-right direction and pass through the center of the base plate 16 in the front-rear direction.
- the base plate 16 in the left-right direction center side portion of the base portion 16A is a protruding portion 16C having a rectangular shape in plan view.
- Concave portions 22 are also formed on the lower surface of the base plate 16 around the second fixing holes 20, and the concave portions 22 are gradually increased in width dimension toward the outer peripheral side of the base portion 16A.
- the part 16A is open to the outside of the outer periphery.
- the base portion 16A of the base plate 16 is disposed below each flange 38B, and the lower end of the flange 38B is welded to the upper surface of the base portion 16A.
- the web 38A side of the flange 38B in the base portion 16A is a projecting portion 16C, and the projecting portion 16C is disposed below the end portion in the width direction of the web 38A, and the lower end of the end portion in the width direction of the web 38A.
- connection portion 16D of the base plate 16 is disposed below the center portion in the width direction of the web 38A, and the lower end of the center portion in the width direction of the web 38A is welded to the upper surface of the connection portion 16D.
- the front-rear direction position at the center in the width direction of the connection portion 16D is coincident with the front-rear direction position at the center in the thickness direction of the web 38A.
- the dimension in the width direction of the connection portion 16D is the thickness direction (front-rear direction) of the web 38A. ) 3 times or more and 5 times or less of the dimension.
- a base portion 16A is provided on the left side portion and the right side portion, and a lack portion 16E is provided between the pair of base portions 16A.
- the weight of the base plate 16 can be reduced, and the use efficiency (yield) of the material of the base plate 16 can be improved.
- the decrease in yield strength in the lower part of the column base web 38A is suppressed by the web 38A.
- the portion between the pair of base portions 16A of the base plate 16 is a portion that has little influence on the strength of the column base, and even if the missing portion 16E is provided between the pair of base portions 16A, the strength of the column base is still efficient. Can be demonstrated.
- the protruding portion 16C of the base portion 16A protrudes from the flange 38B to the web 38A side below the web 38A, and the lower end of the end portion in the width direction of the web 38A is welded to the protruding portion 16C.
- the connecting portion 16D connects the pair of base portions 16A on the lower side of the web 38A, and the lower end of the central portion in the width direction of the web 38A is welded to the connecting portion 16D. For this reason, the steel column 38 can be firmly welded to the base plate 16.
- the lacking portion 16E has a rectangular shape in plan view.
- the lacking portion 16E may have a triangular shape in plan view or a trapezoidal shape in plan view.
- the dimension in the width direction of the web 38A may be increased as the missing portion 16E moves outward in the width direction of the flange 38B.
- the missing portion 16E may be provided only on the web 38A side of the flange 38B, or the missing portion 16E may be provided up to the opposite side of the flange 38B from the web 38A.
- the base plate 16 is provided with the base portion 16A, the connection portion 16D, and the lacking portion 16E.
- the base plate 16 may be provided with the base portion 16A, the connection portion 16D, and the lacking portion 16E.
- FIG. 7 shows a cross-sectional view of a pillar structure 80 according to a sixth embodiment of the present invention as seen from the front
- FIG. 8 shows a pillar structure 80 in a plan view.
- the column structure 80 according to the present embodiment has substantially the same configuration as that of the third embodiment, but differs in the following points.
- the mortar 14 is provided on the left side and the right side, and the pair of mortars 14 is provided in a rectangular shape in plan view.
- the base plate 16 is provided as a rectangular flat plate on the left side and the right side, and a rectangular gap 16B is formed between the pair of base plates 16 in a plan view. It is arranged on the entire lower side of the right base plate 16.
- the pair of base plates 16 and the gap 16B are arranged symmetrically with respect to a vertical plane perpendicular to the left-right direction passing through the center in the left-right direction of the pair of base plates 16 and in the front-rear direction passing through the center in the front-rear direction of the pair of base plates 16. They are arranged symmetrically with respect to a vertical vertical plane.
- the gap 16B side portion of the base plate 16 is a protruding portion 16C having a rectangular shape in plan view.
- the shape and size of the pair of base plates 16 and the gap 16B in plan view are the same as the shape and size of the base plate 16 of the third embodiment in plan view.
- Concave portions 22 are also formed on the lower surface of the base plate 16 around the second fixing holes 20, and the concave portions 22 are gradually increased in width dimension toward the outer peripheral side of the base portion 16A. It is open to the outer periphery of 16A.
- the base plate 16 is disposed below each flange 38B, and the lower end of the flange 38B is welded to the upper surface of the base plate 16.
- the web 38A side of the flange 38B in the base plate 16 is formed as a projecting portion 16C, and the projecting portion 16C is disposed below the end portion in the width direction of the web 38A.
- the lower end of the end portion in the width direction of the web 38A is , And welded to the upper surface of the protruding portion 16C.
- a gap 16B between the pair of base plates 16 is disposed below the center portion in the width direction of the web 38A, and the lower end of the center portion in the width direction of the web 38A is not welded to the base plate 16.
- a base plate 16 is provided below each flange 38B, and a gap 16B is provided between the pair of base plates 16.
- each base plate 16 in plan view can be reduced, the total weight of the pair of base plates 16 can be reduced, and the use efficiency (yield) of the material of the pair of base plates 16 can be improved.
- the web 38A is arranged between the pair of base plates 16, even if one base plate 16 exists on the entire lower side of the steel column 38, the strength of the column base on the lower side of the web 38A is reduced. It is suppressed by the web 38A. As a result, the portion between the pair of base plates 16 has a small influence on the column base yield strength. Even if the gap 16 ⁇ / b> B is provided between the pair of base plates 16, the strength of the column base can still be exhibited efficiently.
- the protruding portion 16C of the base plate 16 protrudes from the flange 38B to the web 38A side below the web 38A, and the lower end of the end portion in the width direction of the web 38A is welded to the protruding portion 16C. For this reason, the steel column 38 can be firmly welded to the base plate 16.
- a distance in the web 38A width direction from the flange 38B at the outer end in the width direction of the web 38A of the base plate 16 is P
- a distance in the width direction of the web 38A from the flange 38B at the inner end in the width direction of the web 38A in the base plate 16 is Q.
- the distance in the width direction of the web 38A from the flange 38B of the center axis of the second anchor bolt 26 (second fixing hole 20) is the web 38A to the flange 38B of the center axis of the first anchor bolt 24 (first fixing hole 18). It is made equal or small with respect to the separation distance in the width direction. For this reason, the separation distance in the width direction of the web 38A with respect to the flange 38B of the center axis of the second anchor bolt 26 (second fixing hole 20) is the web with respect to the flange 38B of the center axis of the first anchor bolt 24 (first fixing hole 18). Unlike the case where it is larger than the separation distance in the 38A width direction, the proof strength of the column base can be efficiently exhibited.
- FIG. 9 is a plan view showing a column structure 90 according to a seventh embodiment of the present invention.
- the pillar structure 90 according to the present embodiment has substantially the same configuration as that of the sixth embodiment, but differs in the following points.
- the web 38 ⁇ / b> A width direction (left-right direction) inner portion of the protruding portion 16 ⁇ / b> C has an isosceles triangle shape in plan view.
- the inner end of the base plate 16 in the width direction of the web 38A (the protruding tip of the protruding portion 16C) is disposed below the web 38A.
- the web 38A width direction inner part of the protrusion 16C is gradually reduced in the flange 38B width direction (front-rear direction) as it goes inward in the web 38A width direction, and the gap 16B becomes smaller toward the flange 38B width direction outer side.
- the 38A width direction dimension is gradually increased.
- the central axis of the second fixing hole 20 and the second anchor bolt 26 is disposed on the inner side in the flange 38B width direction with respect to the central axis of the first fixing hole 18 and the first anchor bolt 24.
- the web 38A width direction inner side portion of the protrusion 16C is formed in an isosceles triangle shape in plan view, so that the protrusion 16C is reduced and the gap 16B is increased.
- the size of each base plate 16 in plan view can be further reduced, the total weight of the pair of base plates 16 can be further reduced, and the use efficiency (yield) of the material of the pair of base plates 16 can be further improved.
- the center axis of the second fixing hole 20 and the second anchor bolt 26 is arranged on the inner side in the flange 38B width direction with respect to the center axis of the first fixing hole 18 and the first anchor bolt 24, so The separation distance between the first anchor bolt 24 and the second anchor bolt 26 in the front-rear direction and the left-right direction can be increased. Thereby, a base beam main reinforcement can be easily arranged between the lower end parts of the steel column 38 in the column structure 90 provided adjacently in a building, and workability can be improved.
- the gap 16B is provided only on the web 38A side of the flange 38B.
- the gap 16B may be provided up to the opposite side of the flange 38B from the web 38A.
- the center axes of the second fixing hole 20 and the second anchor bolt 26 are arranged on the inner side in the flange 38B width direction with respect to the center axes of the first fixing hole 18 and the first anchor bolt 24.
- the center axis of the second fixing hole 20 and the second anchor bolt 26 may be disposed on the inner side in the flange 38B width direction with respect to the center axis of the first fixing hole 18 and the first anchor bolt 24.
- the center axis of the second fixing hole 20 and the second anchor bolt 26 is outside the flange 38B in the width direction with respect to the center axis of the first fixing hole 18 and the first anchor bolt 24. You may arrange in.
- the center axis of the first fixing hole 18 and the first anchor bolt 24 and the center axis of the second fixing hole 20 and the second anchor bolt 26 are connected in the width direction of the flange 38B. Arranged inside. However, at least one of the center axis of the first fixing hole 18 and the first anchor bolt 24 and the center axis of the second fixing hole 20 and the second anchor bolt 26 may be disposed outside the flange 38B in the width direction.
- a pair of the first fixing hole 18 and the first anchor bolt 24 are provided in the pair of base plates 16.
- one or three or more first fixing holes 18 and first anchor bolts 24 may be provided in at least one of the pair of base plates 16.
- a pair of the second fixing holes 20 and the second anchor bolts 26 are provided in the right and left portions of the base plate 16 or the pair of base plates 16.
- one or three or more second fixing holes 20 and two or more second anchor bolts 26 may be provided in at least one of the right and left sides of the base plate 16 or at least one of the pair of base plates 16.
- first anchor bolt 24 and the second anchor bolt 26 are locked to the same foundation concrete 12.
- first anchor bolt 24 and the second anchor bolt 26 may be locked to different foundation concrete 12.
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Abstract
Description
12 基礎コンクリート(コンクリート)
16 ベースプレート(ベース部材、ベース本体)
16A ベース部
16B 隙間
16C 突出部
16D 接続部
16E 欠如部
18 第1固定孔(第1固定部)
20 第2固定孔(第2固定部)
22 凹部
24 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 係止ナット(第1アンカー部、第2アンカー部)
32 定着板(第1アンカー部、第2アンカー部)
38 鉄骨柱(柱部材)
38A ウェブ
38B フランジ
50 柱構造
60 柱構造
70 柱構造
80 柱構造
90 柱構造
100 柱構造
Claims (12)
- 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、
下端側に第1アンカー部が取り付けられてコンクリートに下端側が係止されると共に、上端側に前記ベース部材が前記フランジの前記ウェブとは反対側において固定される第1アンカー部材と、
下端側に第2アンカー部が取り付けられてコンクリートに下端側が係止されると共に、上端側に前記ベース部材が前記フランジの前記ウェブ側において固定される第2アンカー部材と、
を備えた柱構造。 - 前記ベース部材が前記フランジの幅方向外側において前記第1アンカー部材及び前記第2アンカー部材の少なくとも一方の上端側に固定される請求項1記載の柱構造。
- 前記ベース部材の下側面に凹部を設けた請求項1又は請求項2記載の柱構造。
- 前記ベース部材は、各前記フランジ側に設けられるベース部と、一対の前記ベース部を接続する接続部と、一対の前記ベース部間に設けられる欠如部と、を有する請求項1~請求項3の何れか1項記載の柱構造。
- 前記ベース部材は、各前記フランジ側に設けられると共に、間に隙間が設けられる請求項1~請求項3の何れか1項記載の柱構造。
- 前記ベース部材に設けられ、前記ウェブの下側において前記フランジの前記ウェブ側に突出される突出部を備えた請求項5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、
前記ベース本体に前記フランジの前記ウェブとは反対側において設けられ、下端側に第1アンカー部が取り付けられてコンクリートに下端側が係止される第1アンカー部材の上端側に固定される第1固定部と、
前記ベース本体に前記フランジの前記ウェブ側において設けられ、下端側に第2アンカー部が取り付けられてコンクリートに下端側が係止される第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1固定部及び前記第2固定部の少なくとも一方が前記フランジの幅方向外側に配置される請求項7記載のベース部材。
- 前記ベース本体の下側面に凹部を設けた請求項7又は請求項8記載のベース部材。
- 前記ベース本体は、各前記フランジ側に設けられるベース部と、一対の前記ベース部を接続する接続部と、一対の前記ベース部間に設けられる欠如部と、を有する請求項7~請求項9の何れか1項記載のベース部材。
- 前記ベース本体は、各前記フランジ側に設けられると共に、間に隙間が設けられる請求項7~請求項9の何れか1項記載のベース部材。
- 前記ベース本体に設けられ、前記ウェブの下側において前記フランジの前記ウェブ側に突出される突出部を備えた請求項11記載のベース部材。
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PCT/JP2014/057080 WO2015140890A1 (ja) | 2014-03-17 | 2014-03-17 | 柱構造及びベース部材 |
US14/345,947 US9399868B2 (en) | 2014-03-17 | 2014-03-17 | Column structure and base member |
JP2014513827A JPWO2015140890A1 (ja) | 2014-03-17 | 2014-03-17 | 柱構造及びベース部材 |
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US9399868B2 (en) | 2016-07-26 |
US20150259914A1 (en) | 2015-09-17 |
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