CN201358521Y - Restrained flexure prop with end part being provided with energy consumption lead box - Google Patents

Restrained flexure prop with end part being provided with energy consumption lead box Download PDF

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Publication number
CN201358521Y
CN201358521Y CNU2008201242563U CN200820124256U CN201358521Y CN 201358521 Y CN201358521 Y CN 201358521Y CN U2008201242563 U CNU2008201242563 U CN U2008201242563U CN 200820124256 U CN200820124256 U CN 200820124256U CN 201358521 Y CN201358521 Y CN 201358521Y
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China
Prior art keywords
steel plate
plate
steel
layer
mild steel
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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CNU2008201242563U
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Chinese (zh)
Inventor
曹万林
杨兴民
张建伟
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Beijing University of Technology
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Beijing University of Technology
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Priority to CNU2008201242563U priority Critical patent/CN201358521Y/en
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Publication of CN201358521Y publication Critical patent/CN201358521Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a restrained flexure prop with the end part being provided with an energy consumption lead box, which belongs to the field of an energy consumer of the building structure, and is characterized in that the center of the energy consumer is provided with a soft steel plate, wherein the soft steel plate is connected with a splicing plate through bolts, and the splicing plate is connected with a connection plate through bolts, and the soft steel plate is provided with an outer steel bushing, and both ends of the soft steel plate are provided with an inner layer flat steel bushing, and concrete is poured between the outer steel bushing and the soft steel plate and between the inner layer flat steel bushings and the soft steel plate. A thin lead layer is poured into a gap between the soft steel plate and the inner layer flat steel bushings so as to play the role of a separation film and to absorb the energy during the deforming process. The soft steel plate and the inner wall of the inner layer flat steel bushings are provided with a short male pin, and the height of the short male pin is identical to the size of the gap between the soft steel plate and the inner layer flat steel bushing so as to realize the effective restriction of the inner layer flat busing on the soft steel plate. Two energy consumption mechanisms of the cutting extrusion hysteresis deformation of lead and the restraining flexure of the soft steel plate are adequately utilized, so that the energy consumption capacity is good.

Description

The buckling-restrained support of end band energy dissipation lead box
Technical field
The utility model is the buckling-restrained support of a kind of end band energy dissipation lead box, belongs to the energy consumer field of building structure.
Background technology
Tradition supports has the history in more than 30 year nearly as energy-consumption shock-absorption device, because its easy construction, cost economy is calculated simply, is extensively adopted by engineering circle.But tradition is supported on distinct issues are arranged in the antidetonation, be exactly it when big shake pressurized flexing unstability very easily, the inefficacy and the destruction of causing support itself and connected mode.In addition, the tension and compression hysteresis loop that tradition supports is asymmetric, and energy dissipation capacity is poor in big earthquake centre.The problem that how to strengthen tradition support anti-seismic performance has become Chinese scholars and engineering circle problem demanding prompt solution.
The Japan scholar has proposed not have the buckling-restrained support of bonding on the basis that tradition supports, this supports by mild steel steel plate 1, hard diaphragm material, outsourcing side's (circle) steel sleeve 5 and fill concrete 7 forms its organigram such as Fig. 1.Mild steel steel plate 1 is born axial load as the mild steel steel core, and outer tube provides cross binding by fill concrete 7, suppresses mild steel steel core pressurized flexing unstability.Contact surface along mild steel steel core and concrete seven scribbles the very thin hard diaphragm material of one deck, the shear strain that produces when being used for eliminating elongation of mild steel steel core and contraction, lateral expansion when regulating pressurized simultaneously, therefore the mild steel steel core can freely shorten in the aggregate of concrete seven and outer steel sleeve pipe 1 and extend, and surrenders power consumption repeatedly in big earthquake centre.
The anti seismic efficiency that does not have the buckling-restrained support of bonding is better than tradition to be supported, but its associated disadvantages is also arranged: this support is main to rely on the mild steel steel core in supporting to surrender the opposing geological process repeatedly, and the seismic energy of consumption is limited; The yield point of mild steel steel core is very low, and irrecoverable distortion takes place after surrender, easily causes the structure permanent deformation excessive in big earthquake centre; Simultaneously, this support is prone to deformity out of plane, and the lateral force that causes very easily makes the concrete slab edge damage under the early stage effect of earthquake.
The utility model content
The purpose of this utility model has been to overcome the above-mentioned defective of existing support, has proposed the buckling-restrained support of a kind of end band energy dissipation lead box, and this method can significantly improve the shock resistance of braced structures.
To achieve these goals, the utility model has been taked following technical scheme.The utility model comprises mild steel steel plate, scab and junction plate; The two ends of mild steel steel plate are connected by scab and junction plate, and junction plate links to each other with external structure.The cross section at the two ends of described mild steel steel plate is become greatly then again by diminishing greatly gradually gradually by little, portion of external in the two end section gradual changes of mild steel steel plate is provided with inner layer sleeve, arranged outside at inner layer sleeve has outer layer sleeve, between mild steel steel plate and inner layer sleeve, be perfused with lead layer, between outer layer sleeve and inner sleeve, be perfused with concrete.
On the surface of mild steel steel plate and the inwall interlaced arrangement of inner layer sleeve peg is arranged, the height of peg equates with gap between mild steel steel plate and the inner layer sleeve.
The preparation method of the buckling-restrained support of end band energy dissipation lead box, this method comprises the steps:
1) cross section that mild steel steel plate two ends are set is become greatly then again by diminishing greatly gradually gradually by little, on the surface of mild steel steel plate two end section gradual changes part peg is set;
2) on the inwall of inner layer sleeve peg is set, the peg on peg on the inner layer sleeve inwall and the mild steel steel plate is wanted interlaced arrangement, inner layer sleeve is configured in outside the mild steel steel plate then; Gap size between mild steel steel plate and the inner layer sleeve equates with the peg height;
3) between mild steel steel plate and inner layer sleeve, pour into lead layer;
4) outer layer sleeve is set outside inner layer sleeve;
5) concreting between inner layer sleeve and outer layer sleeve forms the buckling-restrained support of end band energy dissipation lead box;
6) two ends with the mild steel steel plate are connected with scab;
7) scab is connected with junction plate.
This support has the characteristic of dual power consumption.This energy dissipating is supported in the structural dynamic reaction has stronger damping energy dissipation ability.The utility model has utilized two kinds of energy consume mechanisms of plumbous shear extrusion hysteresis distortion and mild steel steel plate constraint surrender fully, energy dissipation capacity is good, the cross section is become greatly then again by diminishing greatly gradually gradually by little, guarantee that surrender at mild steel steel plate two ends under geological process, make simultaneously the easier lead layer the inside of thrusting of steel plate when the changing of the relative positions, the shock resistance that can significantly improve braced structures is supported in this energy dissipating.Damper belongs to bolt disassembly type damper, is convenient to change after destroying under the violent earthquake effect.
Description of drawings
Fig. 1 is the internal construction schematic diagram that does not have the buckling-restrained support of bonding;
Fig. 2 is the schematic diagram of the buckling-restrained support of the utility model end band energy dissipation lead box;
Fig. 3 is the internal construction schematic diagram of the buckling-restrained support of the utility model end band energy dissipation lead box;
Fig. 4 is an A-A generalized section among Fig. 2;
Fig. 5 is the C-C generalized section of Fig. 2;
Fig. 6 is a D-D generalized section among Fig. 2;
Among the figure: 1, mild steel steel plate, 2, bolt, 3, scab, 4, junction plate, 5, outer steel sleeve, 6, internal layer band steel sleeve pipe, 7, concrete, 8, lead layer, 9, peg.
The specific embodiment
6 couples of the utility model embodiment are described in further detail below in conjunction with accompanying drawing 2~accompanying drawing:
Present embodiment comprises mild steel steel plate 1, scab 3 and junction plate 4.The two ends of mild steel steel plate are connected by scab 3 and junction plate 4, and junction plate 4 links to each other with the node of external structure.The two ends of mild steel steel plate 1 are provided with active section, the cross section of active section is become greatly then again by diminishing greatly gradually gradually by little, outer setting at mild steel steel plate active section has internal layer band steel sleeve pipe 6, arranged outside at internal layer band steel sleeve pipe 6 has outer steel sleeve 5, between mild steel steel plate and internal layer band steel sleeve pipe 6, be perfused with lead layer 8, between outer steel sleeve 5 and internal layer band steel sleeve pipe 6, be perfused with concrete seven.The two ends of mild steel steel plate 1 are connected with scab 3 by bolt 2, and scab 3 is connected with junction plate 4 by bolt 2.Because lead has low yield strength, high flexibility and high ductibility, can play the barrier film effect between mild steel steel plate 1 and the flat sleeve pipe 6 of internal layer, in deformation process, can absorb lot of energy simultaneously.
The cross section of the active section that is provided with at mild steel steel plate 1 two ends as shown in Figure 3, the cross section is become greatly then again by diminishing greatly gradually gradually by little, guarantees that surrender at mild steel steel plate 1 two ends under geological process, the while makes steel plate 1 easier lead layer 8 the insides of thrusting when the changing of the relative positions.
The external surface of the active section of mild steel steel plate 1 is provided with peg 2.With flat sleeve pipe 6 separated into two parts of internal layer, first is by a long limit and two U-shapeds that minor face is formed, and second portion is the long limit of second, and peg 9 is set on the inwall on two long limits, then two parts is configured in the mild steel steel plate 1 outer flat sleeve pipe 6 of internal layer that forms.Peg 9 on flat sleeve pipe 6 inwalls of internal layer is crisscross arranged with the peg 9 on the mild steel steel plate 1, the height of peg 9 equates with mild steel steel plate 1 and flat sleeve pipe 6 gap sizes of internal layer, realizing the operative constraint of 6 pairs of mild steel steel plates 1 of the flat sleeve pipe of internal layer, the power consumption effect of performance mild steel steel plate 1 constraint surrender and approach power consumption effect in the lead layer 8 extrusion shearing processes.The collocation method of mild steel steel plate 1, scab 3 and junction plate 4 as shown in Figure 3, Figure 4.Mild steel steel plate 1 is connected by scab 3 with junction plate 4, and energy consumer is connected by junction plate 4 with the node of structure.
The preparation method of the buckling-restrained support of end band energy dissipation lead box is as follows:
1) cross section at machined mild steel steel plate 1 two ends is become greatly then again by diminishing greatly gradually gradually by little, and peg 9 is set on the surface of 1 liang of end section gradual change of mild steel steel plate;
2) the flat sleeve pipe 6 of internal layer comprises two parts, first is by a long limit and two U-shapeds that minor face is formed, and second portion is the long limit of second, on the inwall on two long limits peg is set, then two parts are configured in the outside of 1 liang of end section gradual change part of mild steel steel plate, form the flat sleeve pipe 6 of internal layer.Peg on flat sleeve pipe 6 inwalls of internal layer and the peg on the mild steel steel plate are crisscross arranged, and the gap size between the flat sleeve pipe 6 of mild steel steel plate 1 and internal layer highly equates with peg 9, to realize the operative constraint of 6 pairs of mild steel steel plates 1 of the flat sleeve pipe of internal layer;
3) the thin lead layer of perfusion between mild steel steel plate 1 and the flat sleeve pipe 6 of internal layer;
4) outside the flat sleeve pipe 6 of internal layer, outer steel pipe 5 is set;
5) concreting between flat sleeve pipe 6 of internal layer and outer steel pipe 5;
6) mild steel steel plate 1 is connected by bolt 2 with scab 3;
7) scab 3 is connected by bolt 2 with junction plate 4.

Claims (2)

1, the buckling-restrained support of end band energy dissipation lead box comprises mild steel steel plate, scab and junction plate; The two ends of mild steel steel plate link to each other with junction plate by scab, junction plate links to each other with external structure, it is characterized in that: the cross section at the two ends of described mild steel steel plate is become greatly then again by diminishing greatly gradually gradually by little, portion of external in the two end section gradual changes of mild steel steel plate is provided with inner layer sleeve, arranged outside at inner layer sleeve has outer layer sleeve, between mild steel steel plate and inner layer sleeve, be perfused with lead layer, between outer layer sleeve and inner sleeve, be perfused with concrete.
2, the buckling-restrained support of end according to claim 1 band energy dissipation lead box, it is characterized in that: at the staggered peg that is furnished with on the side of mild steel steel plate and on the inwall of inner layer sleeve, the height of peg equates with gap between mild steel steel plate and the inner layer sleeve.
CNU2008201242563U 2008-12-05 2008-12-05 Restrained flexure prop with end part being provided with energy consumption lead box Expired - Lifetime CN201358521Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201242563U CN201358521Y (en) 2008-12-05 2008-12-05 Restrained flexure prop with end part being provided with energy consumption lead box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201242563U CN201358521Y (en) 2008-12-05 2008-12-05 Restrained flexure prop with end part being provided with energy consumption lead box

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CN201358521Y true CN201358521Y (en) 2009-12-09

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101463634B (en) * 2008-12-05 2011-07-27 北京工业大学 Buckling-restrained brace with end having energy dissipation lead box and method for producing the same
CN102587533A (en) * 2012-03-22 2012-07-18 北京工业大学 Buckling restrained brace with parallel mild steel plate energy dissipation devices at two ends and method for manufacturing buckling restrained brace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101463634B (en) * 2008-12-05 2011-07-27 北京工业大学 Buckling-restrained brace with end having energy dissipation lead box and method for producing the same
CN102587533A (en) * 2012-03-22 2012-07-18 北京工业大学 Buckling restrained brace with parallel mild steel plate energy dissipation devices at two ends and method for manufacturing buckling restrained brace

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AV01 Patent right actively abandoned

Granted publication date: 20091209

Effective date of abandoning: 20081205