WO2009150728A1 - 構造部材用のフランジ継手 - Google Patents
構造部材用のフランジ継手 Download PDFInfo
- Publication number
- WO2009150728A1 WO2009150728A1 PCT/JP2008/060715 JP2008060715W WO2009150728A1 WO 2009150728 A1 WO2009150728 A1 WO 2009150728A1 JP 2008060715 W JP2008060715 W JP 2008060715W WO 2009150728 A1 WO2009150728 A1 WO 2009150728A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- structural member
- plate
- flange joint
- structural
- joint
- Prior art date
Links
- 238000003466 welding Methods 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 abstract description 28
- 239000010959 steel Substances 0.000 abstract description 28
- 239000000463 material Substances 0.000 abstract description 20
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
-
- 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
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/28—Beams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
-
- 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
- E04B2001/2442—Connections with built-in weakness points
-
- 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
- E04B2001/2448—Connections between open section profiles
-
- 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
- E04B2001/2457—Beam to beam connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2230/00—Manufacture
- F05B2230/30—Manufacture with deposition of material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/10—Stators
- F05B2240/14—Casings, housings, nacelles, gondels or the like, protecting or supporting assemblies there within
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
Definitions
- the present invention relates to a flange joint for a structural member that connects (couples) structural members such as H-shaped steel and square steel pipe that constitute a nacelle of a wind power generator, for example.
- a nacelle of the wind turbine generator for example, heavy components such as a drive train and a control panel equipped with a speed increaser and a generator are installed.
- a nacelle has a cantilever structure in which structural members such as H-shaped steel are flange-coupled.
- structural members such as H-shaped steels are flanged together, as shown in FIGS. 5 and 6, for example, a flange joint 10 in which a plate-like member (end plate) serving as a flange is attached to the end of the structural member by welding. Is used.
- the plate-like member 12 that is attached and welded to the end portion of the H-shaped steel (structural member) 11 is used as a flange, and the bolts 14 are passed through the plurality of bolt holes 13 provided in each plate-like member 12, and then the nut is attached. Tightened and joined.
- symbol W in a figure is a welding part.
- the welded portion W of the plate-like member 12 attached to the end surface of the structural member such as the H-shaped steel 11 is a portion where the shape of the member cross section changes. Such a change in the cross-sectional shape causes stress concentration in the weld W.
- the cross-sectional size of the structural member is determined by the cross-sectional shape of the welded portion W when considering the fatigue strength of the member.
- the cross-sectional size cannot be determined for the structural member strength (base material strength) of the H-shaped steel 11 or the like, and a structure larger than the cross-sectional size selected from the base material strength is required.
- base material strength base material strength
- the present invention has been made in view of the above circumstances, and the object of the present invention is to make it possible to determine the cross-sectional size based on the base material strength by avoiding stress concentration in the welded portion, and An object of the present invention is to provide a flange joint for a structural member that can be reduced in weight and size.
- the present invention employs the following means in order to solve the above problems.
- the end surfaces of the structural members are welded and joined to one surface side of the plate-shaped members, and the structural members are joined together with the other surfaces of the plate-shaped members aligned.
- the groove portion is provided along the welded portion shape of the end face on one surface side of the plate-like member to which the end face of the structural member is joined, the shape of the cross section of the member The position where the change occurs and the position of the weld are shifted by the depth of the groove, and the fatigue strength at the position where the shape of the member cross-section changes can be evaluated by the strength of the base material.
- the groove portion can be processed relatively easily, it is desirable to have a substantially U-shaped cross-sectional shape.
- the end surfaces of the structural members are welded and joined to one surface side of the plate-shaped members, and the structural members are joined together with the other surfaces of the plate-shaped members aligned.
- a flange joint for a structural member to be provided wherein a concave groove portion is provided on a structural member joint surface of the plate-like member, and a position of a welded portion is separated from a T-shaped base portion formed by the plate-like member and the structural member It is characterized by having made it.
- a concave groove is provided on the structural member joint surface of the plate-shaped member, and the position of the welded portion is separated from the T-shaped base portion formed by the plate-shaped member and the structural member. Therefore, the fatigue strength of the T-shaped root portion can be evaluated by the strength of the base material.
- the groove portion can be processed relatively easily, it is desirable to have a substantially U-shaped cross-sectional shape.
- a wind turbine generator according to the present invention includes the joint structure for a structural member according to claim 1 or 2. According to such a wind turbine generator, since the joint structure that can evaluate the fatigue strength at the position where the shape of the member cross-section changes with the strength of the base material is provided, the structure body such as the nacelle base plate is downsized. And lighter weight.
- the flange joint for a structural member according to the present invention and the wind turbine for wind power generation having the flange joint are arranged in a case where the fatigue strength of the member is taken into account by shifting the position where the stress concentration occurs from the welding position.
- the cross-sectional size can be determined based on the strength of the base material. That is, the structure employing the flange joint of the present invention can determine the cross-sectional size using the strength of the base material of the structural member using H-shaped steel or the like, so it is compared with the conventional structure calculated from the strength of the welded portion. Thus, a structural member having a small cross-sectional size can be employed.
- the flange joint of the present invention makes it possible to determine the cross-sectional size based on the strength of the base material by avoiding stress concentration in the welded portion, thereby realizing a reduction in weight and size of the structure. be able to.
- the weight of the structure and the space occupied by the structure member can be reduced as compared with the conventional case, so that the structure (for example, the nacelle base plate of the wind power generator) can be reduced in weight and size.
- propagation of weld distortion to the fastening surface can be avoided, so that there is a great effect in improving the reliability of the product (for example, a wind power generator).
- FIG. 1 It is a disassembled perspective view which shows the state before welding about the flange joint of the structural member which concerns on one Embodiment of this invention. It is a longitudinal cross-sectional view of the principal part which shows the state after welding about the flange joint of the structural member shown in FIG. It is a side view which shows the wind power generator provided with the flange joint which concerns on one Embodiment of this invention. It is a figure which shows the structural example inside a nacelle about the wind power generator shown in FIG. It is a figure which shows the prior art example regarding the flange joint of a structural member. It is a longitudinal cross-sectional view which shows the principal part of a welding part about the prior art example of FIG.
- FIG. 3 is a side view showing a wind turbine generator having a flange joint according to the present embodiment.
- the wind turbine generator 1 shown in FIG. 3 rotates around a substantially horizontal axis of rotation, a column (also referred to as a “tower”) 2 standing on the foundation B, a nacelle 3 installed at the upper end of the column 2. And a rotor head 4 that is supported by the nacelle 3.
- a plurality of (for example, three) wind turbine rotor blades 5 are attached to the rotor head 4 in a radial pattern around the rotation axis. As a result, the force of the wind striking the wind turbine rotor blade 5 from the direction of the rotation axis of the rotor head 4 is converted into power for rotating the rotor head 4 around the rotation axis.
- the nacelle 3 includes a nacelle base plate 30 attached to the upper end of the column 2 and a cover (not shown) that covers the nacelle base plate 30 from above.
- heavy parts devices such as a speed increaser 31, a generator 32, and a control plate 33 are mounted on the nacelle base plate 30. The rotation of the rotor head 4 is accelerated through the speed increaser 31 and then drives the generator 32 to generate power.
- the nacelle base plate 30 is rotatably supported on the upper end portion of the support column 2, and the direction can be changed according to the wind direction.
- the nacelle base plate 30 includes a structural member 35 such as H-shaped steel extending from the nacelle base plate main body 34 rotating on the support column 2 to the opposite side of the rotor head 4.
- the structural member 35 has a cantilever structure coupled to the nacelle base plate body 34 via the flange joint 20.
- the illustrated flange joint 20 is a case where an H-shaped steel 21 is adopted as the structural member 35.
- the flange joint 20 welds and joins the end surface 21a of the H-shaped steel (structural member) 21 to the structural member joining surface (one surface side) 22a side of the end plate (plate-like member) 22, and the non-joining surface (
- the structural members are joined to each other by a plurality of bolts (not shown) through which the bolt holes 25 pass with the other side 22b aligned with the other non-joint surface.
- bonded together it is not limited to the same kind like the H-shaped steel 21, for example.
- the structural member joint surface 22a of the end plate 22 to which the end surface 21a of the H-shaped steel 21 is joined is provided with a groove 23 along the shape of the welded portion of the end surface 21a. Since the concave groove portion 23 can be processed relatively easily, it is desirable to have a substantially U-shaped cross-sectional shape. In the illustrated configuration example in which the H-shaped steel 21 is employed as the structural member, the recessed groove portions 23 provided on both sides of the flange portion 21b are essential. However, on both sides of the web portion 21c, the required strength is small when compared with the flange portion 21b described above, and therefore the formation of the concave groove portion 23 is arbitrary.
- a welding surface Wf having substantially the same shape (rectangle) as the cross-sectional shape of the flange portion 21b is formed, and only the depth of the groove portion 23 is formed.
- the welding surface Wf at a high position from the T-shaped base portion 24 and the tip end portion 21a of the flange portion 21b are butt welded.
- the web portion 21c is butt welded to the welding surface Wf ′ of the structural member joint surface 22a indicated by a broken line in the drawing, but is the same as the flange portion 21b.
- the welding surface Wf may be formed and butt-welded.
- the end surface 21a of the H-shaped steel 21 is welded and joined to the structural member joint surface 22a side of the end plate 22, and the non-joint surface 22b side of the end plate 22 is matched.
- the structural members are connected to each other, and by providing the concave groove portion 23 on the structural member joining surface 22a of the end plate 22, the position of the welded portion W is a T-shaped base portion formed by the end plate 22 and the H-shaped steel 21. 24 is spaced apart by an amount corresponding to the depth of the substantially concave groove 23.
- the position at which the cross-sectional shape of the H-shaped steel 21 changes and the position of the welded portion W are shifted by the depth of the concave groove 23, and the cross-sectional shape of the H-shaped steel 21 is
- the fatigue strength at the changing position can be evaluated by the base material strength of the end plate 22.
- the flange joint 20 described above is provided with the concave groove portion 23 on the structural member joint surface 22a of the end plate 22 and the position of the welded portion W is separated from the T-shaped root portion 24, the cross-sectional shape of the H-shaped steel 21 is
- the fatigue strength of the T-shaped root portion 24 at the changing position can be evaluated by the base material strength of the end plate 22 on which the T-shaped root portion 24 is formed.
- the flange joint 20 described above takes fatigue strength into consideration for the structural member 35 such as the H-shaped steel 21 and the end plate 22 by shifting the position where the stress concentration occurs (T-shaped base portion 24) from the position of the welded portion W.
- the cross-sectional size of the structural member 35 can be determined based on the strength of the base material. That is, the cross-sectional size of the structure body such as the nacelle base plate 30 employing the flange joint 20 of the present invention can be determined by using the strength of the base material of the structural member 35 composed of the H-shaped steel 21 and the end plate 22. Therefore, it is possible to employ the structural member 35 having a small cross-sectional size as compared with the conventional structure calculated from the strength of the welded portion W.
- the root portion 24 can be evaluated for fatigue by the strength of the base material of the end plate 22, and the welded portion W can be evaluated as a welded structure in which a flat plate and a flat plate are butt welded.
- the flange joint 20 of the present invention makes it possible to determine the cross-sectional size based on the strength of the base material by avoiding stress concentration in the welded portion W, so that the structure including the flange joint 20 can be reduced in weight. And can be miniaturized. As a result, since the weight of the structure and the space occupied by the structure member can be reduced, for example, a structure such as the nacelle base plate 30 of the wind power generator 1 can be reduced in weight and size.
- the above-described flange joint 20 can avoid stress concentration on the welded portion W, and welding distortion may propagate to the structural member joint surface 22a and the non-joint surface 22b of the end plate 22 serving as a fastening surface. Since this can be avoided, for example, the product reliability of the wind turbine generator 1 and the like can be improved.
- the structural member 35 to be welded to the end plate 22 is not limited to the H-shaped steel 21 described above, and it goes without saying that it can be applied to other structural members such as a channel material and an angle material.
- this invention is not limited to embodiment mentioned above, In the range which does not deviate from the summary, it can change suitably.
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- Materials Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
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- Wind Motors (AREA)
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
Description
H型鋼のような構造部材どうしをフランジ結合する場合、たとえば図5及び図6に示すように、構造部材の端部にフランジとなる板状部材(エンドプレート)が溶接により取り付けられたフランジ継手10が用いられている。この場合、H型鋼(構造部材)11の端部に付け合わせ溶接した板状部材12がフランジとされ、互いの板状部材12に設けた複数のボルト穴13にボルト14を通した後、ナットを締め込んで接合される。なお、図中の符号Wが溶接部である。
しかしながら、H型鋼11等の構造部材端面に取り付けられる板状部材12の溶接部Wは、部材断面の形状が変化する部分である。このような断面形状の変化は、溶接部Wに応力集中が発生する原因となる。
本発明に係る構造部材用のフランジ継手は、板状部材の一面側に構造部材の端面を溶接して接合し、前記板状部材の他面側を合わせた状態にして前記構造部材どうしを結合する構造部材用のフランジ継手であって、前記構造部材の端面が接合される前記板状部材の一面側に、前記端面の溶接部形状に沿って凹溝部が設けられていることを特徴とするものである。
このような風力発電装置によれば、部材断面の形状が変化する位置の疲労強度を母材の強度で評価することができる継手構造を備えているので、ナセル台板等の構造体について小型化や軽量化が可能となる。
この結果、従来と比較して構造体の重量や構造部材占有スペースを低減できるので、構造体(たとえば風力発電装置のナセル台板等)の軽量化や小型化が可能となる。さらに、溶接部に対する応力集中の回避に加えて、締結面への溶接歪み伝播も回避できるようになるので、製品(たとえば風力発電装置等)の信頼性向上に大きな効果を奏する。
3 ナセル
20 フランジ継手
21 H型鋼(構造部材)
22 エンドプレート(板状部材)
23 凹溝部
24 T字根元部
30 ナセル台板
34 ナセル台板本体
35 構造部材
W 溶接部
図3は、本実施形態に係るフランジ継手を具備した風力発電装置を示す側面図である。
ローターヘッド4には、その回転軸線周りに放射状にして複数枚(たとえば3枚)の風車回転翼5が取り付けられている。これにより、ローターヘッド4の回転軸線方向から風車回転翼5に当たった風の力が、ローターヘッド4を回転軸線周りに回転させる動力に変換されるようになっている。
ローターヘッド4の回転は、増速機31を介して増速された後、発電機32を駆動して発電する。
この構造部材35は、ナセル台板本体34とフランジ継手20を介して結合された片持ち梁構造となる。
フランジ継手20は、エンドプレート(板状部材)22の構造部材接合面(一面側)22a側にH型鋼(構造部材)21の端面21aを溶接して接合し、エンドプレート22の非接合面(他面側)22bを相手方の非接合面と合わせた状態にして、ボルト穴25を通す複数本のボルト(不図示)により構造部材どうしを結合するものである。なお、互いに結合する構造部材35については、たとえばH型鋼21どうしのように、同種のものに限定されることはない。
構造部材としてH型鋼21を採用した図示の構成例において、フランジ部21bの両側に設ける凹溝部23は必須である。しかし、ウェブ部21cの両側については、上述したフランジ部21bと比較した場合、要求される強度が小さいため凹溝部23の形成は任意である。
通常、一般圧延鋼の溶接部Wの溶け込み量が同程度である場合、材料が同じであっても、溶接部構造がT字かフラットな突き合わせのパターン(溶接脚長も含む)によってそれぞれが有する疲労強度は異なり、T字よりフラットな突き合わせ構造の方が疲労強度は高い。
この結果、構造体の重量や構造部材占有スペースを低減できるので、たとえば風力発電装置1のナセル台板30等のような構造体について、軽量化や小型化が可能となる。
なお、本発明は上述した実施形態に限定されることはなく、その要旨を逸脱しない範囲内において適宜変更することができる。
Claims (3)
- 板状部材の一面側に構造部材の端面を溶接して接合し、前記板状部材の他面側を合わせた状態にして前記構造部材どうしを結合する構造部材用のフランジ継手であって、
前記構造部材の端面が接合される前記板状部材の一面側に、前記端面の溶接部形状に沿って凹溝部が設けられていることを特徴とする構造部材用のフランジ継手。 - 板状部材の一面側に構造部材の端面を溶接して接合し、前記板状部材の他面側を合わせた状態にして前記構造部材どうしを結合する構造部材用のフランジ継手であって、
前記板状部材の構造部材接合面に凹溝部を設け、溶接部の位置を前記板状部材と前記構造部材とにより形成されるT字根元部から離間させたことを特徴とする構造部材用のフランジ継手。 - 請求項1または2に記載の構造部材用の継手構造を備えていることを特徴とする風力発電装置。
Priority Applications (9)
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PCT/JP2008/060715 WO2009150728A1 (ja) | 2008-06-11 | 2008-06-11 | 構造部材用のフランジ継手 |
JP2009522260A JP5204107B2 (ja) | 2008-06-11 | 2008-06-11 | 構造部材用のフランジ継手 |
AU2008331344A AU2008331344B2 (en) | 2008-06-11 | 2008-06-11 | Flange joint for structural member |
KR1020127007449A KR20120043134A (ko) | 2008-06-11 | 2008-06-11 | 구조 부재용의 플랜지 이음매 |
CN200880001414A CN101687266A (zh) | 2008-06-11 | 2008-06-11 | 用于结构构件的法兰接头 |
EP08765486A EP2319648A1 (en) | 2008-06-11 | 2008-06-11 | Flange joint for structural member |
CA2674905A CA2674905C (en) | 2008-06-11 | 2008-06-11 | Flange joint for structural member |
KR1020097012475A KR101234380B1 (ko) | 2008-06-11 | 2008-06-11 | 구조 부재용의 플랜지 이음매 |
US12/312,753 US20110047899A1 (en) | 2008-06-11 | 2008-06-11 | Flange joint for structural member |
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PCT/JP2008/060715 WO2009150728A1 (ja) | 2008-06-11 | 2008-06-11 | 構造部材用のフランジ継手 |
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US (1) | US20110047899A1 (ja) |
EP (1) | EP2319648A1 (ja) |
JP (1) | JP5204107B2 (ja) |
KR (2) | KR20120043134A (ja) |
CN (1) | CN101687266A (ja) |
AU (1) | AU2008331344B2 (ja) |
CA (1) | CA2674905C (ja) |
WO (1) | WO2009150728A1 (ja) |
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CN112282051A (zh) * | 2020-10-24 | 2021-01-29 | 江苏南通三建集团股份有限公司 | 一种快速安装的钢柱安装结构及其工艺 |
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Also Published As
Publication number | Publication date |
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KR101234380B1 (ko) | 2013-02-18 |
KR20100029065A (ko) | 2010-03-15 |
CA2674905A1 (en) | 2009-12-11 |
CA2674905C (en) | 2012-11-13 |
CN101687266A (zh) | 2010-03-31 |
JPWO2009150728A1 (ja) | 2011-11-04 |
AU2008331344A1 (en) | 2010-01-07 |
AU2008331344B2 (en) | 2011-09-08 |
EP2319648A1 (en) | 2011-05-11 |
US20110047899A1 (en) | 2011-03-03 |
JP5204107B2 (ja) | 2013-06-05 |
KR20120043134A (ko) | 2012-05-03 |
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