CN102493570A - Multi-stage series anti-buckling support and manufacturing method - Google Patents
Multi-stage series anti-buckling support and manufacturing method Download PDFInfo
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- CN102493570A CN102493570A CN2011104267342A CN201110426734A CN102493570A CN 102493570 A CN102493570 A CN 102493570A CN 2011104267342 A CN2011104267342 A CN 2011104267342A CN 201110426734 A CN201110426734 A CN 201110426734A CN 102493570 A CN102493570 A CN 102493570A
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- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 79
- 229910000831 Steel Inorganic materials 0.000 claims description 73
- 239000010959 steel Substances 0.000 claims description 73
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract 5
- 230000000903 blocking effect Effects 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 230000002968 anti-fracture Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The invention relates to a multi-stage series anti-buckling support and a manufacturing method; the multi-stage series anti-buckling support is a slender rod piece formed by an axial force rod and a constraint object wrapping the periphery of the axial force rod, wherein a gap A is remained between the axial force rod and the constraint object; the slender rod piece comprises a left end force transmitting unit I, a right end force transmitting unit M, a middle force transmitting unit K and at least two energy consumption units, wherein the two energy consumption units are connected in series, and the two energy consumption units have different yield strengths; at least one of the left end force transmitting unit I, the right end force transmitting unit M and the middle force transmitting unit K is matched with a lug through a blocking groove to form a movable force transmitting and distributing mechanism; and a gap B is remained between the blocking groove and the lug. The multi-stage series anti-buckling support can realize the grading operation of the energy consumption units, meets the requirements for low yield and large deformation, and can be widely applied to energy consumption and shock absorption of buildings.
Description
Technical field
The present invention relates to a kind of antidetonation supporting member and preparation method thereof, the power consumption that particularly a kind of energy dissipation capacity is adjustable is supported and preparation method thereof.
Background technology
It is through the next catabiotic member of the axial push-pull of steel that anti-flexing supports; It supports inner core by anti-flexing and constraint component constitutes; Acting as of constraint component prevents that inner core from the multistage flexing taking place when pressurized, make inner core under pulling force and pressure effect, can both reach all fully surrender.Can better consume the seismic energy of input structure, thereby play the energy dissipation effect.
Desirable anti-flexing supports and requires its performance to be: low surrender, guarantee under little shake, just can consume energy; Energy dissipation capacity is big, guarantees under big shake, also can reach the effect of damping power consumption; Deflection is big, adapts with the stratified deformation of building under the geological process.Yet in reality was implemented, above-mentioned technical requirements can not realize in a continuous supporting rod.In order to optimize anti-flexing support performance, the scientific research personnel from two desirable anti-flexings of aspect whereabouts support near, one is through changing the material of power consumption core space, one is to change the form of structure that power consumption is supported.Through changing the method for power consumption core space material; Receive the restriction of material subject achievement in research; The data that can retrieve at present is plumbous situation about being used with steel, and this kind situation is that the power consumption section of power consumption core space is that frictional force through lead consumes energy with lead, and plumbous frictional force is difficult to control; Major influence factors has, contact area, normal pressure and plumbous friction factor.Therefore, improving power consumption supports the form of structure that convenient mode more supports from power consumption and starts with.Existing form of structure has single-stage, plural serial stage and plural parallel stage, and wherein, the low yield behavior of single-stage is poor; Deformability is general, and the plural parallel stage energy dissipation capacity is unstable, and deflection is general; Each power consumption core is worked simultaneously, and it is simple butt joint to be supported in two power consumptions form that the anti-flexing of the plural serial stage that can retrieve at present supports, if two power consumption unit yield forces are identical; Then initial deformation is big; Can't satisfy the requirement of low surrender, if yield force is different, unstability can take place in the power consumption unit that energy dissipation capacity is little.And the said structure form is clear and definite power transmission mechanism is set, and can't accurately control each power consumption section and get into the moment of work, and can be easy to occur supporting the situation of catastrophic failure because can't accurately control displacement.
Summary of the invention
The purpose of this invention is to provide the anti-flexing of a kind of plural serial stage and support and preparation method, solve the anti-flexing of existing plural serial stage and support the requirement that to satisfy low surrender and lack effective anti-fracture protection mechanism and cause consuming energy and support the technical problem of catastrophic failure.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
The anti-flexing of a kind of plural serial stage supports; Be axle power bar and the slender type rod member that is wrapped in power bar obligatory point formation on every side; Be reserved with gap A between said axle power bar and the obligatory point; Said slender type rod member comprises power transmission unit, left part I, power transmission unit, right part M, middle power transmission unit K and at least two power consumption unit sections; Be series relationship between the said power consumption unit; Wherein, each power consumption unit section has different yield forces, has one among said left part power transmission unit I, power transmission unit, right part M, the middle power transmission unit K at least through groove and the movable power transmission distribution mechanism of projection cooperation formation; Be reserved with gap B between said groove and the projection, said axle power bar is all little than the cross section in power transmission unit, left part I, power transmission unit, right part M, middle power transmission unit K section in the cross section of all power consumption unit sections.
Said groove is opened on axle power bar, the obligatory point or open simultaneously above-mentioned on both, and said projection and obligatory point or an axle power bar are fixed as one, or independent, and groove and projection correspondence one by one.
Said axle power bar is steel plate, i iron, cross-shaped steel or steel plate and shaped steel combination.
Said obligatory point is square steel, concrete filled steel tube, square steel pipe concrete or concrete-filled rectangular steel tube.
The concrete inwall of said concrete filled steel tube or square steel pipe is provided with baffle plate.
All be filled with paraffin goods or polytetrafluoroethylene (PTFE) in said gap A and the gap B.
The width of said gap B is 0~200mm.
The preparation method that the anti-flexing of described plural serial stage supports comprises the steps:
Compared with prior art the present invention has following characteristics and beneficial effect:
The present invention realizes the purpose of classification displacement control through a plurality of power consumptions unit that projection and groove and parallel connection are set; Classification work through each power consumption unit; Improved the deformability that anti-flexing supports; Simultaneously, because projection improves the globality of whole curvature-prevention support component realizing can participating in power transmission when displacement distributes.
Controllable deforming amount of the present invention depends on the summation of all power consumption element deformation amounts, and the member of can realizing consuming energy is initial to be surrendered low and needs that bulk deformation is big.
In addition, the member that the present invention adopted is steel with the power consumption material, and the material source scope is wide, and cost is low, and long service life simultaneously, owing to enlarged the controllable deforming amount, has enlarged the scope of application that power consumption is supported then.
Secondly, through adopting the power transmission mechanism of definite steel of yield point and concavo-convex cooperation, realize that distortion is controlled fully.
Also have; Be set to the form of groove and projection cooperation through transmission mechanism; Improve the shear resistance at transmission position, prevented the unexpected fracture of support under the violent earthquake effect, prolonged the application life of supporting; Help realizing the target of setting up defences of " no collapsing with strong earthquake ", can farthest protect lives and properties.
Moreover power consumption according to the invention is supported and can be carried out segmentation production according to actual, and assembling flexibly according to actual needs then can realize that intensification produces, and reduces production costs the expanding application scope.
The present invention can be widely used in the energy-dissipating and shock-absorbing of building.
Description of drawings
Below in conjunction with accompanying drawing the present invention is done further detailed explanation.
Fig. 1 is the embodiment of the invention one a structure side diagrammatic sketch.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Fig. 4 is the C-C sectional view of Fig. 1.
Fig. 5 is the D-D sectional view of Fig. 1.
Fig. 6 is the E-E sectional view of Fig. 3.
Fig. 7 is the embodiment of the invention two structure side diagrammatic sketch.
Fig. 8 is the F-F sectional view of Fig. 6.
Fig. 9 is the G-G sectional view of Fig. 6.
Figure 10 is the H-H sectional view of Fig. 6.
Figure 11 is the embodiment one that the power transmission allocation units partly cooperate through independent projection and groove C.
Figure 12 is the embodiment two that passes through independent projection and groove C cooperation of power transmission allocation units.
Figure 13 is the hysteresis loop that common anti-flexing supports.
Figure 14 is the hysteresis loop that structural test of the present invention obtains.
Reference numeral: 1-cross steel plate axle power bar, 1.1-projection A, 2-concrete filled steel tube obligatory point, 2.1-groove A, 3-assembling bolt, the oval keyhole of 4-, 5-circle keyhole, 6-gap A, 7-gap B, 8-clearance C, 9-H shaped steel axle power bar, 9.1-groove B, 10-square steel obligatory point, 10.1-projection B, the additional steel plate of 11-, 12-baffle plate, 13-independence projection, 14-groove C.
The specific embodiment
Embodiment one is extremely shown in Figure 6 referring to Fig. 1; The anti-flexing of a kind of plural serial stage supports, and comprises spool a power bar and an obligatory point, is reserved with gap A6 between the two; Said obligatory point is a concrete filled steel tube obligatory point 2; Be wrapped in a power bar periphery, said axle power bar is a cross steel plate axle power bar 1, and only be kept perfectly in two ends and middle part cross section and obligatory point form the power transmission unit together; The cross steel plate axle power bar 1 of remainder is removed wing plate and is only kept web and form power consumption unit J and power consumption unit L together with obligatory point, between power consumption unit J and the power consumption unit L through middle power transmission unit K formation series relationship.Wherein, The consume energy surrender ability at L place, unit of the surrender ability of axle power bar at power consumption J place, unit is low; Be to realize above-mentioned purpose, the power consumption core is only served as with the web of cross steel plate axle power bar 1 by J place, unit in power consumption, and the two blocks of additional steel plates 11 sentencing that web with cross steel plate axle power bar 1 laterally arranges at power consumption unit L and the web of cross steel plate axle power bar 1 serve as the power consumption core jointly; Wherein, be reserved with clearance C 8 between additional steel plate 11 and the web.Power transmission unit I, right part power transmission unit M and K place, middle power transmission unit in the left part; Have outstanding projection A1.1 on the web of cross steel plate axle power bar 1; Concrete filled steel tube obligatory point 2 caves in and forms groove A2.1, and groove A2.1 and projection A1.1 are complementary and are reserved with gap B7 between the two.All can fill the material that increases sliding capability or material in above-mentioned gap A6, gap B7 and the clearance C 8 such as paraffin goods or polytetrafluoroethylene (PTFE).Said axle power bar is all little than the cross section in power transmission unit, left part I, power transmission unit, right part M, middle power transmission unit K section in the cross section of all power consumption unit sections.During work; The cross steel plate axle power bar 1 unit J elder generation participation work of consuming energy under external force, after the edge comprehensive engagement of the edge of the projection 1.1 on the cross steel plate axle power bar 1 and the groove A2.1 on the concrete filled steel tube obligatory point 2, this power consumption unit J generation " short circuit "; Deactivate; The external force that exceeds all conducts to next power consumption unit L through projection A1.1, if having a plurality of power consumptions unit can and the like, until total cross-section participation work.This duty shows the working in reciprocating mode in the tension and compression process.
Embodiment two is extremely shown in Figure 10 referring to Fig. 7; The anti-flexing of a kind of plural serial stage supports; Be axle power bar and the slender type rod member that is wrapped in power bar obligatory point formation on every side; Be reserved with gap A between said axle power bar and the obligatory point, said slender type rod member comprises two left parts power transmission unit I, right part power transmission unit M and middle power transmission unit K and at least two power consumption unit, and said obligatory point is a square steel obligatory point 10; Said axle power bar is a H shaped steel axle power bar 9; Said square steel obligatory point 10 is attached to H shaped steel axle power bar 9 both sides, and be kept perfectly in two ends and middle part cross section and obligatory point of 9 on said H shaped steel axle power bar forms the power transmission unit together, and remainder is removed the edge of a wing and only kept web and forms power consumption unit J together and the unit L that consumes energy with square steel obligatory point 10; Form series relationship through middle power transmission unit K between power consumption unit J and the power consumption unit L; Said left part power transmission unit I and power transmission unit, right part M are movable, form groove B9.1 through contracting in the web with H shaped steel axle power bar 9, and square steel obligatory point 10 evaginations form projection B10.1; Groove B9.1 and projection B10.1 are complementary and are reserved with gap B7 between the two and guarantee that projection B10.1 can be free to slide in groove B9.1; And correspondence has oval keyhole 4 on square steel obligatory point in this section 10 and the H shaped steel axle power bar 9, and oval keyhole 4 is passed in assembling bolt 3, and H shaped steel axle power bar 9 is fixing with square steel obligatory point 10; Power transmission unit K fixes in the middle of said, through correspondence on H shaped steel axle power bar in this section 9 and the square steel obligatory point 10 is opened round keyhole 5, round keyhole 5 fixed connections is passed in assembling bolt 3 realize.Wherein, the power consumption core is only served as with the web of H shaped steel axle power bar 9 by J place, unit in power consumption, and the two blocks of additional steel plates 11 sentencing that web with H shaped steel axle power bar 9 laterally arranges at power consumption unit L and the web of H shaped steel axle power bar 9 serve as the power consumption core jointly.During work; H shaped steel axle power bar 9 is under external force in the participation work of power consumption unit J elder generation; When H shaped steel axle power bar 9 cards withstood on the edge of the projection B10.1 on the obligatory point, power consumption unit L deactivated, and the external force that exceeds all conducts to next power consumption unit L through projection B10.1; If have a plurality of power consumptions unit can and the like, until total cross-section participation work.This duty shows the working in reciprocating mode in the tension and compression process.
In the foregoing description, said axle power bar also can be steel plate, i iron, cross-shaped steel or steel plate and shaped steel combination.Said obligatory point also can be square steel, concrete filled steel tube, square steel pipe concrete or concrete-filled rectangular steel tube.The inwall of said concrete filled steel tube, square steel pipe concrete or concrete-filled rectangular steel tube also can be provided with baffle plate 12.The width of said gap B is 0~200mm.
In addition; Can place independent projection 13 in the groove C14 through on axle power bar and obligatory point, all having equal and opposite in direction groove C14 one to one in the movable power transmission unit, realize the transmission of displacement control and axle power through the slip of independent projection 13 in groove C14; Referring to Figure 11 and 12; Wherein among Figure 11, the groove C14 and the independent projection 13 of a pair of concavo-convex cooperation is set on each power transmission unit, two power transmission parts on an axis up and down; Among Figure 12, two power transmission parts also can be not on an axis up and down.In addition, groove is that the dovetail groove effect is better, and at this moment, the shape and the groove shapes of slide block are complementary.In addition, power consumption unit L can be merely a block plate, and thickness is different with the J place, unit of consuming energy can be realized that yield force is different and get final product.The power consumption cell mesh all can as long as can in this section, realize the long-pending any way that significantly reduces of partial cross section except that mode described in the foregoing description.
The preparation method that the anti-flexing of described plural serial stage supports comprises the steps:
Figure 14 is that embodiment one said member carries out load test; The hysteresis loop that obtains, Figure 13 are the hysteresis loops that common anti-flexing supports, and can find out from the hysteresis loop contrast; The present invention can realize first section low surrender and surrender step by step; And support with respect to existing power consumption, its hysteresis loop is fuller, can satisfy the needs that low surrender large deformation is supported in power consumption.
In actual engineering, produce and accelerating construction progress in order to intensify, can power transmission unit and power consumption unit sectional making be assembled according to actual requirement of engineering flexibly.
Claims (8)
1. the anti-flexing of plural serial stage supports; Be axle power bar and the slender type rod member that is wrapped in power bar obligatory point formation on every side; Be reserved with gap A (6) between said axle power bar and the obligatory point; It is characterized in that: said slender type rod member is divided into power transmission unit, left part I, power transmission unit, right part M, middle power transmission unit K and at least two power consumption unit; Be series relationship between the said power consumption unit; Wherein, each power consumption unit has different yield forces, has one among said left part power transmission unit I, power transmission unit, right part M, the middle power transmission unit K at least through groove and the movable power transmission distribution mechanism of projection cooperation formation; Be reserved with gap B (7) between said groove and the projection, the cross section of said axle power bar in all power consumption unit sections is all little than the cross section in power transmission unit, left part I, power transmission unit, right part M, middle power transmission unit K section.
2. the anti-flexing of plural serial stage according to claim 1 supports; It is characterized in that: said groove is opened on axle power bar, the obligatory point or open above-mentioned on both simultaneously; Said projection and obligatory point or an axle power bar are fixed as one, or independent, and groove and projection correspondence one by one.
3. the anti-flexing of plural serial stage according to claim 1 supports, and it is characterized in that: said axle power bar is steel plate, i iron, cross-shaped steel or steel plate and shaped steel combination.
4. the anti-flexing of plural serial stage according to claim 1 supports, and it is characterized in that: said obligatory point is square steel, concrete filled steel tube, square steel pipe concrete or concrete-filled rectangular steel tube.
5. the anti-flexing of plural serial stage according to claim 1 supports, and it is characterized in that: the concrete inwall of said concrete filled steel tube or square steel pipe is provided with baffle plate (12).
6. the anti-flexing of plural serial stage according to claim 1 supports, and it is characterized in that: all be filled with paraffin goods or polytetrafluoroethylene (PTFE) in said gap A (6) and the gap B (7).
7. the anti-flexing of plural serial stage according to claim 1 supports, and it is characterized in that: the width of said gap B (7) is 0~200mm.
8. the assembly method that supports according to the anti-flexing of any described plural serial stage of claim 1 to 7 is characterized in that: comprise the steps:
Step 1; According to predetermined left part power transmission unit I, right part power transmission unit M and middle power transmission unit K section length and each power consumption unit section length axle power bar is processed into the little rod member in cross section in power transmission unit, section ratio left part I, right part power transmission unit M and the middle power transmission unit K section of power consumption unit section, and makes the energy dissipation capacity of each power consumption unit core space different;
Step 2 is provided with groove and projection at least one, the power transmission unit of formation activity in power transmission unit, left part I, right part power transmission unit M and middle power transmission unit K;
Step 3, with obligatory point be arranged on a power bar outside, preset clearance A between the two, and make a power bar become as a whole with obligatory point.
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CN110952798A (en) * | 2019-12-17 | 2020-04-03 | 北京工业大学 | Multidimensional energy-consuming and shock-absorbing type cold-bending thin-walled steel structure residential system |
CN110952798B (en) * | 2019-12-17 | 2021-05-25 | 北京工业大学 | Multidimensional energy-consuming and shock-absorbing type cold-bending thin-walled steel structure residential system |
CN112404816A (en) * | 2020-11-10 | 2021-02-26 | 中国核动力研究设计院 | Cross-shaped workpiece assembling and welding device |
CN112404816B (en) * | 2020-11-10 | 2022-06-17 | 中国核动力研究设计院 | Cross-shaped workpiece assembling and welding device |
CN113958000A (en) * | 2021-12-22 | 2022-01-21 | 北京市建筑设计研究院有限公司 | Series sleeve type double-yield-point buckling restrained brace |
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