CN105544740B - A kind of high temperature resistant sliding friction power consumption connection system - Google Patents

A kind of high temperature resistant sliding friction power consumption connection system Download PDF

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Publication number
CN105544740B
CN105544740B CN201610045294.9A CN201610045294A CN105544740B CN 105544740 B CN105544740 B CN 105544740B CN 201610045294 A CN201610045294 A CN 201610045294A CN 105544740 B CN105544740 B CN 105544740B
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CN
China
Prior art keywords
subplate
bending resistance
resistance key
belt
trough
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Expired - Fee Related
Application number
CN201610045294.9A
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Chinese (zh)
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CN105544740A (en
Inventor
周海涛
郝晓
张建波
林代友
李克
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Henan University of Urban Construction
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Henan University of Urban Construction
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Priority to CN201610045294.9A priority Critical patent/CN105544740B/en
Publication of CN105544740A publication Critical patent/CN105544740A/en
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Publication of CN105544740B publication Critical patent/CN105544740B/en
Expired - Fee Related legal-status Critical Current
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/58Connections for building structures in general of bar-shaped building elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403Connection details of the elongated load-supporting parts

Abstract

The present invention relates to a kind of high temperature resistant sliding friction power consumption connection system, beam body end is provided with elongated hole web, elongated hole is offered on elongated hole web, high-strength bolt is installed in elongated hole, elongated hole web is connected by high-strength bolt with bending resistance key subplate and trough of belt subplate, it is connected with bending resistance key subplate and trough of belt subplate with the side of column, high-strength nut is installed in the end of high-strength bolt, high-strength nut and with the high-strength bolt outer cover between bending resistance key subplate equipped with the longitudinal precompressed inner sleeve of high temperature, high temperature longitudinal direction precompressed inner sleeve outer sheath is equipped with horizontal fastening outer sleeve;It is mainly used in solving the problems, such as temperature effect too high between large-scale cleaner outer framework girder steel and steel column connection, special expanded configuration and slump structure by installing, it is ensured that the stability of high temperature action lower slider frictional connection precompression improve the security of structure.

Description

A kind of high temperature resistant sliding friction power consumption connection system
Technical field
The present invention relates to a kind of beam-to-column joint mode of long term high temperature operation steel construction, more particularly to a kind of high temperature resistant is slided Dynamic friction power consumption connection system.
Background technology
To eliminate the serious thing containing dust emission that thermal power plant, cement plant etc. are produced in process of production, usually using large-scale Cleaner.Cleaner is in enterprise's normal productive process, and all the time in running status, downtime is relatively fewer.Dedusting In operation, internal operating temperature maintains more than 200 degrees Celsius to device, and atmospheric environment is then exposed to outside cleaner, temperature Degree is with Four seasons change.Therefore, the temperature difference for the inner side and outer side of support cleaner periphery steel member is very big, and temperature deformation is asked Topic is more serious.
The connection of steel frame girder steel and pillar on the outside of typical cleaner, typically using solder design, to be rigidly connected. In hot operation state, the elongation and girder steel section diverse location of girder steel axial direction are uneven caused by thermograde to be become Shape, by the rigidly connected limitation between the steel column that is connected, therefore is generated on girder steel section in greatly uneven Stress.Although carrying out isothermal holding by coating rock wool on the outside of beam, to alleviate this problem, asked without fundamentally solution Topic.
Be slidably connected be engineering structure field release temperature stress compared with frequently with a kind of method, can release component completely Horizontal rigidity and bending rigidity.But for large-scale cleaner, it is also contemplated that whole framework is made in geological process and wind load Safety under, structure need girder steel possess certain rigidity carry out transmission of the horizontal loads effect between each steel column and point Match somebody with somebody, therefore the rigidity connected between Liang Yuzhu can not discharge completely.
And typical friction energy-dissipating damper, using high-strength bolt, precompression is applied between damper mainboard and subplate.Work as master When edge shear stresses between subplate reach maximum static friction force, Relative sliding occurs between major-minor plate, kinetic force of friction effect plays power consumption Effect.It has the disadvantage, under high temperature action, and heat expansion elongation occurs for high-strength bolt, and correspondingly precompression significantly reduces, or even disappears Lose, maximum static friction force also accordingly reduces or disappeared.Therefore general frictional connection is not suitable for the spy that cleaner is faced Different operating environment.
The content of the invention
It is an object of the invention to provide a kind of high temperature resistant sliding friction power consumption connection system.
The technical proposal of the invention is realized in this way:A kind of high temperature resistant sliding friction power consumption connection system, including column The beam body being connected with column, described beam body end is provided with elongated hole web, elongated hole web and offers elongated hole, in elongated hole High-strength bolt is inside installed, elongated hole web is connected by high-strength bolt with bending resistance key subplate and trough of belt subplate, band bending resistance key Subplate and trough of belt subplate are connected with the side of column, and high-strength nut, high-strength nut and band are provided with the end of high-strength bolt High-strength bolt outer cover between bending resistance key subplate is equipped with the longitudinal precompressed inner sleeve of high temperature, and high temperature longitudinal direction precompressed inner sleeve outer sheath is equipped with Horizontal fastening outer sleeve.
The longitudinal precompressed inner sleeve of described high temperature be using thermal coefficient of expansion be more than the aluminium or copper of steel into cylindrical empty Heart sleeve structure, described horizontal fastening outer sleeve is the cylinder type hollow that the oxygen-free copper for being less than steel using thermal coefficient of expansion is made Sleeve structure, the thickness of high temperature longitudinal direction precompressed inner sleeve is not less than the thickness of horizontal fastening outer sleeve.
Described elongated hole is at least one, is movably installed with bending resistance key in elongated hole, the side of bending resistance key with bending resistance key Subplate is connected to one structure, and another side-to-side anastomosis of bending resistance key is arranged on the bending resistance key mounting groove opened up on trough of belt subplate It is interior.
Described is mutually corresponding for installing high-strength bolt with being offered respectively on bending resistance key subplate and trough of belt subplate Band bending resistance key subplate bolt hole and trough of belt subplate bolt hole, band bending resistance key subplate bolt hole at least two, two band bending resistance keys Subplate bolt hole is symmetrically opened in the both sides of bending resistance key, trough of belt subplate bolt hole at least two, two trough of belt subplate bolts hole The symmetrical both sides for being opened in bending resistance key mounting groove.
Described two with the length between bending resistance key subplate bolt hole outer and two trough of belt subplate bolt hole outers it Between equal length, and length between two trough of belt subplate bolt hole outers is more than the flute length of bending resistance key mounting groove, bending resistance The flute length of key mounting groove is less than the flute length of elongated hole.
The described outside with bending resistance key subplate bolt hole and trough of belt subplate bolt hole and described high-strength nut and institute Spacer for bolt is provided between the horizontal fastening outer sleeve stated.
The present invention has following good effect:The present invention is simple and reasonable, is mainly used in solving large-scale cleaner Too high temperature effect problem, special expanded configuration and slump structure by installing, are protected between outer framework girder steel and steel column connection The stability of high temperature action lower slider frictional connection precompression has been demonstrate,proved, the security of structure is improved.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is A-A sectional views in Fig. 1 of the present invention.
Fig. 3 is B-B sectional views in Fig. 1 of the present invention.
Fig. 4 is C-C sectional views in Fig. 1 of the present invention.
Fig. 5 is D-D sectional views in Fig. 1 of the present invention.
Fig. 6 is E-E sectional views in Fig. 1 of the present invention.
Fig. 7 is elongated hole web structure schematic diagram of the present invention.
Fig. 8 is present invention band bending resistance key subplate front view.
Fig. 9 is present invention band bending resistance key subplate side view.
Figure 10 is trough of belt subplate structural representation of the present invention.
Embodiment
As shown in Fig. 1,2,3,4,5,6,7,8,9,10, a kind of high temperature resistant sliding friction power consumption connection system, including column 1 The beam body 2 being connected with column 1, the described end of beam body 2 is provided with elongated hole web 5, elongated hole web 5 and offers elongated hole 12, high-strength bolt 8 is movably installed with elongated hole 12, elongated hole web 5 is by high-strength bolt 8 and with bending resistance key subplate 3 and trough of belt Subplate 4 is connected, and is connected with bending resistance key subplate 3 and trough of belt subplate 4 with the side of column 1, in the end activity of high-strength bolt 8 High-strength nut 9 is installed, high-strength nut 9 and with the outer cover of high-strength bolt 8 between bending resistance key subplate 3 equipped with the longitudinal precompressed of high temperature Inner sleeve 7, the outer sheath of high temperature longitudinal direction precompressed inner sleeve 7 is equipped with horizontal fastening outer sleeve 6.The cross-sectional area of high temperature longitudinal direction precompressed inner sleeve is remote More than shank of bolt cross-sectional area.
The longitudinal precompressed inner sleeve 7 of described high temperature be using thermal coefficient of expansion be more than the aluminium or copper of steel into cylindrical empty Heart sleeve structure, described horizontal fastening outer sleeve 6 is the cylindrical empty that the oxygen-free copper for being less than steel using thermal coefficient of expansion is made Heart sleeve structure, the thickness of high temperature longitudinal direction precompressed inner sleeve 7 is not less than the thickness of horizontal fastening outer sleeve 6.Described elongated hole 12 is at least For one, bending resistance key 11 is movably installed with elongated hole 12, the side of bending resistance key 11 with bending resistance key subplate 3 with being fixedly connected as one Body structure, another side-to-side anastomosis of bending resistance key 11 is arranged in the bending resistance key mounting groove 14 opened up on trough of belt subplate 4.
Offered respectively on described band bending resistance key subplate 3 and trough of belt subplate 4 mutually corresponding for installing high-strength bolt 8 Band bending resistance key subplate bolt hole 13 and trough of belt subplate bolt hole 15, band bending resistance key subplate bolt hole 13 at least two, two The both sides of bending resistance key 11, trough of belt subplate bolt hole 15 at least two, two are symmetrically opened in bending resistance key subplate bolt hole 13 Trough of belt subplate bolt hole 15 is symmetrically opened in the both sides of bending resistance key mounting groove 14.Two described band bending resistance key subplate bolts hole 13 The equal length between length and two outers of trough of belt subplate bolt hole 15 between outer, and two trough of belt subplate bolts hole Length between 15 outers is more than the flute length of bending resistance key mounting groove 14, and the flute length of bending resistance key mounting groove 14 is less than the groove of elongated hole 12 It is long.The described outside with bending resistance key subplate bolt hole 13 and trough of belt subplate bolt hole 15 and described high-strength nut 9 and institute Spacer for bolt 10 is provided between the horizontal fastening outer sleeve 6 stated.
Concrete operations of the present invention are as follows:Two pieces of bending resistance keys of band on elongated hole 12, band bending resistance key subplate 3 are opened up on elongated hole web 5 11, and band bending resistance key subplate bolt hole 13 is opened on band bending resistance key subplate 3, the position phase of correspondence bending resistance key 11 on trough of belt subplate 4 Should make can be on ribbon supply bending resistance key subplate 3 the bending resistance key mounting groove 14 that inserts of bending resistance key 11, the both sides of bending resistance key mounting groove 14 correspondence Also same size trough of belt subplate bolt hole 15 is opened in the position of band bending resistance key subplate bolt hole 13.Elongated hole 12 is than the He of band bending resistance key subplate 3 Spacing is big between bolts at two ends outer edge in trough of belt subplate 4, for sliding.
The left end cross cross wires of elongated hole 12 is alignd with the left side cross cross wires of bending resistance key subplate bolt hole 13, and is adjacent to, now Bending resistance key 11 inserts elongated hole 12, then the left side cross cross wires alignment band bending resistance key subplate bolt hole 13 of trough of belt subplate bolt hole 15 Left side cross cross wires, the opposite side of elongated hole web 5 is attached to by trough of belt subplate 4, then the insertion bending resistance key of bending resistance key 11 mounting groove 14.Three pieces The face of amplexiforming between plate can make polishing in advance.
Spacer for bolt 10 is sticked in foregoing bolt hole both sides, all high-strength spiral shells of insertion on the inside of lateral high-temperature operation outside low temperature Bolt 8.The shank of bolt elongation end on the inside of high-temperature operation, be inserted in thermal coefficient of expansion be significantly greater than steel aluminum or high temperature made of copper indulge In the horizontal fastening outer sleeve 6 that the oxygen-free copper for being significantly less than steel to precompressed inner sleeve 7 and thermal coefficient of expansion makes, high temperature longitudinal direction precompressed The thickness of set 7 is not less than the thickness of horizontal fastening outer sleeve 6.It is horizontal that the cross-sectional area of high temperature longitudinal direction precompressed inner sleeve is significantly larger than shank of bolt Section.Finally screw in high-strength nut 9 to tighten, pretension effect is produced in shank of bolt, while inner sleeve is by a certain degree of precompressed Effect, the precompression is delivered on band bending resistance key subplate 3, trough of belt subplate 4 and elongated hole web 5 so that elongated hole web 5 and with bending resistance Predetermined precompression is reached between key subplate 3 and trough of belt subplate 4 on contact surface.
Operation mechanism of the present invention is as follows:In cleaner period out of service, due to the prestretching effect using high-strength bolt, So that elongated hole web 5 and with there is certain precompression on the contact surface between bending resistance key subplate 3 and trough of belt subplate 4, so that There is certain stiction limit value in contact surface.When the horizontal loads such as earthquake load or wind load are in cleaner steel framework When on frame, active force is connected on from a lateral column to beam by this and transmitted.When this active force causes beam to move right, positioned at elongated hole Horizontal axle power in active force can be directly delivered to the web mutually leaned on therewith up by the bolt of 12 leftmost sides.When this effect When power causes beam to left movement, if the horizontal axle power in this active force is less than maximum static friction force limit value, this connection does not occur Change in displacement, horizontal axle power is delivered to web up by the frictional effects between each plate;If this horizontal axle power reaches most During big stiction limit value, band bending resistance key subplate 3 and trough of belt subplate 4 slide relative to elongated hole web 5, and occur friction consumption Can, the frictional force obtained on web is equal to maximum static friction force.And moment of flexure, though then in active force axle power direction, It is to be transmitted as usual between beam column by the shear key of strip all the time, is not influenceed by previous constructions.
During cleaner hot operation, each component is by the high temperature action of different amplitudes, effect of expanding with heat and contract with cold. Wherein high-strength bolt tightening latch extends, and is particularly at the elongation at the thickness of elongated hole web 5, can greatly reduce precompression.But Due to being mounted with horizontal fastening outer sleeve 6 and the longitudinal precompressed inner sleeve 7 of high temperature, the former is under same high temperature action, because of the coefficient of expansion It is smaller, therefore transversely deforming is minimum caused by temperature, and the longitudinal precompressed inner sleeve 7 of high temperature is larger because of thermal coefficient of expansion, therefore its is swollen Bulging deformation elongation is by significantly more than the expansion elongation of correspondence section Steel Bolt bar, and due to high-strength nut 9 and with bending resistance key The constraint of subplate 3 and horizontal fastening outer sleeve 6 respectively on longitudinally and radially to its thermal expansion deformation so that its linear deformation is obtained Hard constraints, so that great internal pressure stress is produced along shank of bolt direction in the longitudinal precompressed inner sleeve 7 of high temperature, so as to produce greatly Pressure effect.This pressure is passed on bending resistance key subplate 3, elongated hole web 5 and trough of belt subplate 4 by spacer for bolt 10, so as to mend Repay due to the precompression that tightening latch extends and have lost on the contact surface, it is ensured that stability of the precompression under high temperature action.
Now, beam is by high temperature action, the same elongation strain effect for occurring fingerpost direction, wherein being risen by bulk temperature Caused axial even elongation strain is constrained by frictional connection, certain internal stress is produced inside beam, in component ends Certain axle power is produced, and is not limited then by the non-homogeneous strain caused by thermograde on the wing plate of web both sides System, does not produce internal stress.When axle power is less than maximum static friction force caused by the foregoing rising by bulk temperature, connection does not become Change, when the axle power reaches maximum static friction force, elongated hole web 5 is slided relative to band bending resistance key subplate 3 and trough of belt subplate 4 Move, axle power no longer increases, internal stress keeps constant controllable.
During this period, cleaner steel frame is as met with seismic loading or wind action, the operation machine of this connection System is just like period out of service, and moment of flexure obtains totally tansitive all the time, and axle power is made a concerted effort with the axle power of temperature effect generation, if reached To maximum static friction force, then occurs friction energy-dissipating.

Claims (5)

  1. The connection system 1. a kind of high temperature resistant sliding friction is consumed energy, including column(1)With with column(1)The beam body being connected(2), its It is characterised by:Described beam body(2)End is provided with elongated hole web(5), elongated hole web(5)On offer elongated hole(12), in length Hole(12)High-strength bolt is inside installed(8), elongated hole web(5)Pass through high-strength bolt(8)With band bending resistance key subplate(3)With trough of belt pair Plate(4)It is connected, band bending resistance key subplate(3)With trough of belt subplate(4)With column(1)Side be connected, in high-strength bolt(8)'s End is provided with high-strength nut(9), high-strength nut(9)With band bending resistance key subplate(3)Between high-strength bolt(8)Outer cover is equipped with High temperature longitudinal direction precompressed inner sleeve(7), high temperature longitudinal direction precompressed inner sleeve(7)Outer sheath is equipped with horizontal fastening outer sleeve(6);Described high temperature is indulged To precompressed inner sleeve(7)Be using thermal coefficient of expansion be more than steel aluminium or copper into cylinder type hollow sleeve structure, it is described Horizontal fastening outer sleeve(6)It is the cylinder type hollow sleeve structure that the oxygen-free copper for being less than steel using thermal coefficient of expansion is made, high temperature Longitudinal precompressed inner sleeve(7)Thickness be not less than horizontal fastening outer sleeve(6)Thickness.
  2. The connection system 2. high temperature resistant sliding friction according to claim 1 is consumed energy, it is characterised in that:Described elongated hole(12) At least one, in elongated hole(12)Inside it is movably installed with bending resistance key(11), bending resistance key(11)Side with bending resistance key subplate(3) Be connected to one structure, bending resistance key(11)Another side-to-side anastomosis be arranged on trough of belt subplate(4)On the bending resistance key that opens up install Groove(14)It is interior.
  3. The connection system 3. high temperature resistant sliding friction according to claim 2 is consumed energy, it is characterised in that:Described band bending resistance key Subplate(3)With trough of belt subplate(4)It is upper offer respectively mutually it is corresponding be used for high-strength bolt is installed(8)Band bending resistance key subplate spiral shell Keyhole(13)With trough of belt subplate bolt hole(15), band bending resistance key subplate bolt hole(13)At least two, two band bending resistance key pairs Crab bolt hole(13)Symmetrically it is opened in bending resistance key(11)Both sides, trough of belt subplate bolt hole(15)At least two, two troughs of belt Subplate bolt hole(15)Symmetrically it is opened in bending resistance key mounting groove(14)Both sides.
  4. The connection system 4. high temperature resistant sliding friction according to claim 3 is consumed energy, it is characterised in that:Two described bands are anti- Curved key subplate bolt hole(13)Length and two trough of belt subplate bolts hole between outer(15)Equal length between outer, and And two trough of belt subplate bolts hole(15)Length between outer is more than bending resistance key mounting groove(14)Flute length, bending resistance key mounting groove (14)Flute length be less than elongated hole(12)Flute length.
  5. The connection system 5. high temperature resistant sliding friction according to claim 4 is consumed energy, it is characterised in that:Described band bending resistance key Subplate bolt hole(13)With trough of belt subplate bolt hole(15)Outside and described high-strength nut(9)Fastened with described transverse direction Overcoat(6)Between be provided with spacer for bolt(10).
CN201610045294.9A 2016-01-25 2016-01-25 A kind of high temperature resistant sliding friction power consumption connection system Expired - Fee Related CN105544740B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101372843A (en) * 2008-10-23 2009-02-25 同济大学 Friction type finite sway shock absorber strut
CN202347664U (en) * 2011-11-15 2012-07-25 福州大学 High-ductility steel structure beam column node connected through angle iron
CN103243819A (en) * 2013-05-27 2013-08-14 江苏科技大学 Fabricated concrete column-steel beam energy dissipation type panel point connecting device
CN105155685A (en) * 2015-08-19 2015-12-16 山东建筑大学 Assembly type beam column joint and construction method thereof
CN105239674A (en) * 2015-06-30 2016-01-13 同济大学 Self-resetting steel structure beam-column aseismatic joint based on shape memory alloy ring spring set
CN105256897A (en) * 2015-09-08 2016-01-20 同济大学 High energy dissipation self-resetting beam-column joint and methods based on shape memory alloy screws

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4019511B2 (en) * 1998-05-13 2007-12-12 株式会社大林組 Building vibration control structure
JP4678037B2 (en) * 2008-04-22 2011-04-27 株式会社大林組 Damping structure for bolted joints

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101372843A (en) * 2008-10-23 2009-02-25 同济大学 Friction type finite sway shock absorber strut
CN202347664U (en) * 2011-11-15 2012-07-25 福州大学 High-ductility steel structure beam column node connected through angle iron
CN103243819A (en) * 2013-05-27 2013-08-14 江苏科技大学 Fabricated concrete column-steel beam energy dissipation type panel point connecting device
CN105239674A (en) * 2015-06-30 2016-01-13 同济大学 Self-resetting steel structure beam-column aseismatic joint based on shape memory alloy ring spring set
CN105155685A (en) * 2015-08-19 2015-12-16 山东建筑大学 Assembly type beam column joint and construction method thereof
CN105256897A (en) * 2015-09-08 2016-01-20 同济大学 High energy dissipation self-resetting beam-column joint and methods based on shape memory alloy screws

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