CN203383350U - Light buckling restrained brace - Google Patents
Light buckling restrained brace Download PDFInfo
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- CN203383350U CN203383350U CN201320419358.9U CN201320419358U CN203383350U CN 203383350 U CN203383350 U CN 203383350U CN 201320419358 U CN201320419358 U CN 201320419358U CN 203383350 U CN203383350 U CN 203383350U
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- China
- Prior art keywords
- light
- restrained brace
- buckling restrained
- central layer
- duty
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 61
- 239000010959 steel Substances 0.000 claims abstract description 61
- 241000446313 Lamella Species 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 239000003351 stiffener Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 239000011814 protection agent Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The utility model discloses a light buckling restrained brace. The light buckling restrained brace comprises a core plate serving as a stressed member and an outer sleeve which is nested outside the core plate and used for preventing the core plate from buckling, wherein end plates are arranged at two ends of the outer sleeve respectively; and two ends of the core plate penetrate through the end plates through a cross node plate to be connected with an external structure. The light buckling restrained brace has the benefits as follows: the whole light buckling restrained brace is made of steel, has the advantages of light weight and strong buckling resistant capacity, and can be applied to a steel structure and a large-span space structure.
Description
Technical field
The utility model relates to building engineering field, is specifically related to a kind of light-duty buckling restrained brace.
Background technology
Buckling restrained brace (being called again anti-buckling support) is a kind of antidetonation new technology of being used widely gradually in China in the last few years, due to this, all can surrender while being supported on tension and pressurized and flexing not, the shortcomings such as hot strength, hysteretic loop when while having overcome traditional support pressurized, buckling strength is starkly lower than tension is too small, can greatly improve the collapse resistant capacity of building under earthquake.At present, what domestic buckling restrained brace prevented that the structural form of central layer flexing from mainly adopting is the structural form of " steel sleeve adds filled with mortar ", i.e. " grouting-type ".This structural form constraint strength is high, but weight is larger, is unfavorable for installing, and particularly in steel work and large span spatial structure, uses limited.
The utility model content
In view of the foregoing defects the prior art has, application for ease of buckling restrained brace in steel work and large span spatial structure, enlarge its scope of application, problem to be solved in the utility model is that the light-duty buckling restrained brace that a kind of whole employing steel are manufactured, constraint strength is high is provided.
For addressing the above problem, the utility model provides a kind of light-duty buckling restrained brace, comprises as the central layer of stressed member and to be set in described central layer outer for preventing the outer sleeve of described central layer flexing; The two ends of described outer sleeve are respectively equipped with end plate; The two ends of described central layer are passed described end plate by cruciform gusset plate respectively and are connected with external structure.
As preferably, be respectively equipped with channel-section steel between the both sides that described central layer is relative and described outer sleeve, the notch of described channel-section steel is towards described outer sleeve.
As preferably, described light-duty buckling restrained brace also comprises a plurality of constraint steel plates spaced apart, described constraint steel plate be positioned at other both sides that described central layer is relative and respectively with described channel-section steel welding.
As preferably, be provided with a plurality of stiffening ribs in described channel-section steel.
As preferably, the middle part of described central layer and channel-section steel is provided with place's pad.
As preferably, between described central layer and channel-section steel, be provided with glide lamella.
Light-duty buckling restrained brace of the present utility model has following beneficial effect: all by steel, made, have lightweight, the advantage that anti-flexion capabilities is strong, and can be in being applied in steel work and large span spatial structure.
The accompanying drawing explanation
The structural representation of the light-duty buckling restrained brace that Fig. 1 is an embodiment of the present utility model.
The structural representation that Fig. 2 is the channel-section steel in Fig. 1.
The A-A that Fig. 3 is Fig. 1 to schematic diagram.
The B-B that Fig. 4 is Fig. 1 to schematic diagram.
The C-C that Fig. 5 is Fig. 1 to schematic diagram.
The D-D that Fig. 6 is Fig. 1 to schematic diagram.
Fig. 7 is that the light-duty buckling restrained brace shown in Fig. 1 is connected the structural representation of (bolt connection) with shaped steel.
Fig. 8 is that the light-duty buckling restrained brace shown in Fig. 1 is connected the structural representation of (bearing pin connection) with shaped steel.
Fig. 9 is that the light-duty buckling restrained brace shown in Fig. 1 is connected the structural representation of (flange connection) with shaped steel.
Figure 10 is that the light-duty buckling restrained brace shown in Fig. 1 is connected the structural representation of (being welded to connect) with shaped steel.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but not as to restriction of the present utility model.
As shown in Fig. 1-Fig. 6, the light-duty buckling restrained brace 100 of the present embodiment, comprise as the central layer 2 of stressed member and be set in the central layer outside for preventing the outer sleeve 1 of central layer 2 flexings; The two ends of outer sleeve 1 are respectively equipped with end plate 7; The two ends of central layer 2 are connected with external structure through end plate 7 by cruciform gusset plate 6 respectively.Wherein, by central layer 2, bear extraneous pulling force and pressure, outer sleeve 1 in the ordinary course of things, does not stress or stressed very little, when central layer 2 is under pressure and while surrendering, by outer sleeve 1 protection central layer 2, flexing does not occur.Owing to all adopting steel to make in the present embodiment, with " grouting-type " structure that prior art adopts, compare, have advantages of that overall weight is light.
In order to strengthen anti-flexion capabilities, as shown in Figure 3, at central layer 2, between relative both sides and overcoat, be respectively equipped with channel-section steel 3, the notch of channel-section steel 3 is sleeve 1 outward.Channel-section steel 3 plays the effect of filler, the flexing of auxiliary outer sleeve 1 constraint central layer 2.When earthquake, extraneous active force is passed to central layer 2 by cruciform gusset plate 6, bear the reciprocal alternate load of tension and compression by central layer 2, outer sleeve 1 and channel-section steel 3 are common in order to retrain the pressurized flexing of central layer 2, channel-section steel 3 major constraints criplings wherein, outer sleeve 1 is used for retraining central layer complete buckling, make like this central layer 2 at pressurized and left behind all can enter surrender, thereby its Hysteresis Behavior is good.
In order further to increase whole anti-flexion capabilities, as shown in figs. 1 and 3, the light-duty buckling restrained brace 100 of the present embodiment also comprises a plurality of constraint steel plates 4, and constraint steel plate 4 is positioned at the other both sides that central layer 2 is relative and welds with channel-section steel 3 respectively.As shown in Figure 1, a plurality of constraint steel plates 4 are spaced apart, at interval of certain distance, a constraint steel plate 4 are set.Constraint steel plate 4 plays the effect of constraint central layer 2 from another angle.
In order to improve the intensity of channel-section steel 3, as shown in Figure 2, also be provided with a plurality of stiffening ribs 31 in the channel-section steel 3 of the light-duty buckling restrained brace 100 of the present embodiment.Stiffening rib 31 welds with channel-section steel 3, can improve the intensity of channel-section steel 3, improves the ability of its constraint central layer 2.
As shown in Figure 1, central layer 2 is provided with place's pad with the middle part of channel-section steel 3, i.e. B-B line place in Fig. 1, and the thick line with black in figure is expressed weld seam.
As shown in Figure 3, be provided with the glide lamella 5 formed by polytetrafluoroethylene (PTFE) and rubber between central layer 2 and channel-section steel 3.Simultaneously, as shown in Figure 5 and Figure 6, at cruciform gusset plate 6 and the contacted part of end plate 7, also be provided with the glide lamella 5 formed by polytetrafluoroethylene (PTFE) and rubber.Glide lamella 5 guarantees that central layers can free sliding deformation, with earthquake energy, and the protection agent structure.
Under wind load and frequently occurred earthquake effect, light-duty buckling restrained brace 100, in elastic stage, be take and provided rigidity as main for agent structure, is equivalent to conventional steel brace; When suffering rarely occurred earthquake, light-duty buckling restrained brace 100 enters plastic period, utilizes its surrender but inductile characteristic, relies on the high yield force of steel and larger plastic strain to come, to Structural Energy Dissipation, to provide equivalent damping.Under macroseism, the rigidity that light-duty buckling restrained brace 100 provides to structure reduces, and is conducive to make the predominant period of the natural vibration period of original structure away from place, and both frequencies are staggered simultaneously.
The light-duty buckling restrained brace 100 of the present embodiment has larger energy dissipation capacity, and in macroseism, energy rate is introduced into the power consumption state, the earthquake response of earthquake energy and attenuating structure, and protection agent structure member exempts from damage, thereby guarantees the safety of structure.In general, structure is higher, gentleer, span is larger, and the energy-dissipating and shock-absorbing effect is just more remarkable, and therefore, the light-duty buckling restrained brace 100 of the present embodiment has very advanced technological rationality, can comply with the developing direction of modern building fabric.
The structural representation be connected with shaped steel below in conjunction with the light-duty buckling restrained brace 100 of Fig. 7-Figure 10 manual the present embodiment.The two ends of light-duty buckling restrained brace 100 are connected with the shaped steel arranged on the part of building or building structure respectively.
Common connected mode has four kinds, is respectively: bolt connects, bearing pin connects, flange connects and is welded to connect.
Fig. 7 shows the structure that light-duty buckling restrained brace 100 and shaped steel 500 are bolted.As shown in Figure 7, shaped steel 500 is provided with junction plate 20, and light-duty buckling restrained brace 100 is connected with junction plate 20 by high-strength bolt 102, in order to improve bonding strength, is respectively equipped with stiffener 21 in the both sides of junction plate 20 and is connected with shaped steel 500.
Fig. 8 shows the structure that light-duty buckling restrained brace 100 is connected by bearing pin with shaped steel 500.As shown in Figure 8, the end of light-duty buckling restrained brace 100 is connected with upper ear plate 103, and shaped steel 500 is provided with lower ear plate 104, between upper ear plate 103 and lower ear plate 104, is provided with bearing pin 105.Similarly, the both sides of lower ear plate 104 also are respectively equipped with for strengthening the stiffener 21 of the bonding strength between itself and shaped steel 500.
Fig. 9 shows the structure that light-duty buckling restrained brace 100 is connected by flange with shaped steel 500.As shown in Figure 9, shaped steel 500 is provided with junction plate 20, and the end of light-duty buckling restrained brace 100 and junction plate 20 are provided with corresponding flange 108, by the connection between flange 108, realizes being connected between light-duty buckling restrained brace 100 and shaped steel 500.Similarly, the side of junction plate 20 also is provided with stiffener 21.
Figure 10 show light-duty buckling restrained brace 100 with shaped steel 500 by the structure be welded to connect.The structure of Figure 10 and Fig. 9 is similar, and difference is that replaced flange 108, weld with welding in Figure 10 is weld seam 109 in Figure 10.
Certainly; the above is preferred embodiment of the present utility model, for those skilled in the art, and under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection domain of the present utility model.
Claims (6)
1. light-duty buckling restrained brace, is characterized in that, comprises as the central layer of stressed member and to be set in described central layer outer for preventing the outer sleeve of described central layer flexing;
The two ends of described outer sleeve are respectively equipped with end plate;
The two ends of described central layer are passed described end plate by cruciform gusset plate respectively and are connected with external structure.
2. light-duty buckling restrained brace as claimed in claim 1, is characterized in that,
Be respectively equipped with channel-section steel between the both sides that described central layer is relative and described outer sleeve, the notch of described channel-section steel is towards described outer sleeve.
3. light-duty buckling restrained brace as claimed in claim 2, is characterized in that, also comprises a plurality of constraint steel plates spaced apart, and described constraint steel plate is positioned at the other both sides that described central layer is relative and welds with described channel-section steel respectively.
4. light-duty buckling restrained brace as claimed in claim 3, is characterized in that, is provided with a plurality of stiffening ribs in described channel-section steel.
5. light-duty buckling restrained brace as described as any one in claim 2-4, is characterized in that, the middle part of described central layer and channel-section steel is provided with place's pad.
6. light-duty buckling restrained brace as described as any one in claim 2-4, is characterized in that, between described central layer and channel-section steel, is provided with glide lamella.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320419358.9U CN203383350U (en) | 2013-07-15 | 2013-07-15 | Light buckling restrained brace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320419358.9U CN203383350U (en) | 2013-07-15 | 2013-07-15 | Light buckling restrained brace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203383350U true CN203383350U (en) | 2014-01-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320419358.9U Expired - Fee Related CN203383350U (en) | 2013-07-15 | 2013-07-15 | Light buckling restrained brace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203383350U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986628A (en) * | 2015-02-11 | 2016-10-05 | 清华大学 | Buckling prevention supporting boom truss |
| CN109853741A (en) * | 2019-03-29 | 2019-06-07 | 同济大学建筑设计研究院(集团)有限公司 | A kind of core wall structure system with conversion layer |
-
2013
- 2013-07-15 CN CN201320419358.9U patent/CN203383350U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986628A (en) * | 2015-02-11 | 2016-10-05 | 清华大学 | Buckling prevention supporting boom truss |
| CN109853741A (en) * | 2019-03-29 | 2019-06-07 | 同济大学建筑设计研究院(集团)有限公司 | A kind of core wall structure system with conversion layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20200715 |