CN104674971A - Self-reset buckling-restrained brace of three-fold round steel tube - Google Patents
Self-reset buckling-restrained brace of three-fold round steel tube Download PDFInfo
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- CN104674971A CN104674971A CN201510067612.7A CN201510067612A CN104674971A CN 104674971 A CN104674971 A CN 104674971A CN 201510067612 A CN201510067612 A CN 201510067612A CN 104674971 A CN104674971 A CN 104674971A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 59
- 239000010959 steel Substances 0.000 title claims abstract description 59
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 18
- 238000009826 distribution Methods 0.000 claims description 15
- 241000446313 Lamella Species 0.000 claims description 6
- 238000011084 recovery Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 210000002435 tendon Anatomy 0.000 abstract description 4
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
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- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
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- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction 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
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000011814 protection agent Substances 0.000 description 1
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- 238000004904 shortening Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The invention discloses a self-reset buckling-restrained brace of a three-fold round steel tube. The self-reset buckling-restrained brace comprises a core tube, an inner sleeve, an outer sleeve, a first end plate, a second end plate, one or a plurality of prestressing tendons, a first cross gusset plate and a second cross gusset plate, wherein the core tube is used as an energy-consuming component, the inner sleeve and the outer sleeve are used as buckling-restrained components and are respectively arranged inside and outside the core tube so as to prevent the core tube from buckling, the first end plate and the second end plate are used as self-reset components and are used for tightly pressing on both ends of the core tube, the inner sleeve and the outer sleeve respectively, the one or plurality of prestressing tendons penetrate through the inner sleeve, the first end plate and the second end plate, and the first cross gusset plate and the second cross gusset plate are used as connecting components and respectively penetrate through the first end plate and the second end plate so as to be connected with the core tube and an external structure. When the self-reset buckling-restrained brace is pulled to extend or is pressed to retract, the one or plurality of prestressing tendons are in pulled extension states all the time, so that the elastic recovery performance is guaranteed, and an efficient self-reset effect is achieved.
Description
Technical field
The present invention relates to technical field of structural engineering, be specifically related to a kind of triple round steel pipe self reset curvature-prevention and support.
Background technology
Anti-buckling support is in recent years in the one building energy-dissipating and shock-absorbing new technology that China is used widely gradually, hot strength when but buckling strength is starkly lower than tension during traditional support pressurized, hysteretic loop is too small, is unfavorable for the collapse resistant capacity of building under earthquake.
Can restore funcitons structure be a kind of novel Aseismic Structure System, produce under the overall background of color-based image retrieval, Self-resetting structural system is can one in restore funcitons structural system, this structural system still can get back to initial position after earthquake, the permanent set of structure or component is very little, then ensure that structure is not collapsed in earthquake, and continue to use.
It is on the basis fully understanding Self-resetting structural system characteristic and anti-buckling support stress performance that self reset curvature-prevention supports, a kind of composite support grown up, take full advantage of steel anti-buckling after excellent tensile and compressive property and the good tension restorability of presstressed reinforcing steel.In earthquake, self reset curvature-prevention is supported for structure and provides lateral resisting and earthquake energy.After geological process, the tensile stress of presstressed reinforcing steel can allow support get back to initial position, the permanent set of support is dropped to minimum, then reduces the permanent set of structure.
At present, domestic Self-resetting supports the structural form that many employings apply unbonded prestressing tendon in reinforced concrete support.Such Self-resetting supports the large shortcoming of existence two: one is that weight is comparatively large, is unfavorable for installing, particularly uses limited in seismic hardening; Two is that Self-resetting function can only play when supporting tension and extending, then lost efficacy in short-term by compression in support, do not play the elastic recovery properties of presstressed reinforcing steel comprehensively and result in the asymmetric feature supporting tension and compression hysteresis, the stable performance also for supporting stress performance brings hidden danger.
Summary of the invention
In view of the foregoing defects the prior art has, the application in steel work and large span spatial structure is supported on for ease of Self-resetting, expand its scope of application, it is high and no matter support the steel pipe self reset curvature-prevention that tension and compression all can play Self-resetting function and support that the technical problem to be solved in the present invention is to provide a kind of whole employing steel manufacture with prestressing apparatus, constraint strength, and consider the advantage of the weak component of the strong and strong node of good, the anti-buckling ability of its Self-resetting performance.
For solving the problems of the technologies described above, the invention provides a kind of triple round steel pipe self reset curvature-prevention to support, be related specifically to the triple round steel pipe self reset curvature-prevention of a kind of perforate/grooved with prestressing apparatus to support, comprise the core core pipe as energy-consuming parts, two as anti-buckling parts are located in core core pipe respectively, outer for preventing inner sleeve and the outer tube of core core pipe flexing, two as Self-resetting parts hold out against core core pipe respectively, first end plate at inner sleeve and outer tube two ends and the second end plate and through inner sleeve, one or more presstressed reinforcing steel of the first end plate and the second end plate, the the first crisscross joint plate and the second crisscross joint plate that described first end plate is connected with the second end plate and with core core pipe and external structure is each passed through as link, first end plate and the second end plate are not all fixed to core core pipe, the two ends of inner sleeve and outer tube, the two ends being in one or more presstressed reinforcing steel of Tensile long status are fixed to the outside of the first end plate and the second end plate respectively by ground tackle, the two ends of core core pipe all offer cross bath and are connected to the first crisscross joint plate and the second crisscross joint plate respectively by cross bath, first crisscross joint plate and the second crisscross joint plate are connected to inner sleeve and outer tube one end respect to one another respectively.
In the embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, inner sleeve and outer tube isometric, the length of core core pipe equals or is shorter than the length of inner sleeve and outer tube.
In the embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, in the middle part of the first end plate and the second end plate, all offer cross bath.
In the embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, the first crisscross joint plate and the second crisscross joint plate are respectively movably through the cross bath in the middle part of the first end plate and the second end plate.
In the embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, inner sleeve two ends all offer cross bath, first crisscross joint plate is connected to the cross bath of inner sleeve wherein one end, and the second crisscross joint plate is freely movably through the cross bath of the other one end of inner sleeve.
In the embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, in the middle part of core core tube wall, offer multiple holes of circle distribution along core core pipe and axial distribution.
In the embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, in the middle part of core core tube wall, offer the multiple short groove of circle distribution along core core pipe and axial distribution.
In the embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, in the middle part of core core tube wall, offer the multiple elongated slot of circle distribution along core core pipe.
In the embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, inner sleeve, leave hole between outer tube and core core pipe or be provided with glide lamella.
In the embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, glide lamella is vulcanie.
Beneficial effect
The triple round steel pipe self reset curvature-prevention of one disclosed by the invention supports, primarily of three round steel pipes, one group of presstressed reinforcing steel and ground tackle, two end plates and two crisscross joint plate compositions.In three steel pipes, wherein one is core core pipe, two is sleeve pipe, sleeve pipe is inner, outside at core core pipe respectively, be respectively inner sleeve and outer tube, when core core pipe is stressed, presstressed reinforcing steel extends and ensures elastic restoring force and self-resetting capability under sleeve pipe and end plate mating reaction, and inside and outside sleeve pipe then prevents core core pipe compressive buckling; Be with cross slotted eye in the middle part of two end plates, and be not connected with core core pipe, sleeve pipe and crisscross joint plate, but hold out against with inside and outside sleeve pipe under without external force state and live presstressed reinforcing steel from outer side anchor; Two crisscross joint plates are connected with core core pipe two ends respectively, and different one end of inside and outside sleeve pipe are connected with two crisscross joint plates more respectively; Inside and outside sleeve pipe is isometric, core core pipe and inside and outside sleeve pipe isometric or be shorter than inside and outside sleeve pipe; One end that inner sleeve is not connected to cruciform gusset plate at end certain limit internal recessing so that corresponding cruciform gusset plate can move freely; Reserve a fixed gap respectively between inside and outside sleeve pipe and core core pipe, can vulcanie be filled; Self reset curvature-prevention is propped up support integral and is connected with external structure by crisscross joint plate; Fluting or perforate in the middle part of core core pipe, make yield failure preferentially occur in middle part, realize the weak component of strong node, be specifically divided into perforate, open short groove, cutting elongated groove three types.
Accompanying drawing explanation
Fig. 1 is the surface structure schematic diagram that a kind of triple round steel pipe self reset curvature-prevention supports;
Fig. 2 is the sectional drawing that a kind of triple round steel pipe self reset curvature-prevention supports;
Fig. 3 is the A-A generalized section in Fig. 2;
Fig. 4 is the B-B generalized section in Fig. 2;
Fig. 5 is the C-C generalized section in Fig. 2;
Fig. 6 is the D-D generalized section in Fig. 2;
Fig. 7 is the E-E generalized section in Fig. 2;
Fig. 8 is the F-F generalized section in Fig. 2;
Fig. 9 is inner sleeve generalized section;
Figure 10 is outer tube generalized section;
Figure 11 is perforate core core pipe generalized section;
Figure 12 is out short trough core core pipe generalized section;
Figure 13 is cutting elongated groove core core pipe generalized section;
Figure 14 is the G-G generalized section in Figure 11;
Figure 15 is the H-H generalized section in Figure 12;
Figure 16 is the I-I generalized section in Figure 13.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but not as a limitation of the invention.
Fig. 1 is the surface structure schematic diagram that a kind of triple round steel pipe self reset curvature-prevention supports, Fig. 2 is the sectional drawing that a kind of triple round steel pipe self reset curvature-prevention supports, as depicted in figs. 1 and 2, the invention provides a kind of triple round steel pipe self reset curvature-prevention to support, comprise the core core pipe (01) as energy-consuming parts, two as anti-buckling parts are located in core core pipe (01) respectively, outer for preventing inner sleeve (02) and the outer tube (03) of core core pipe (01) flexing, two as Self-resetting parts hold out against core core pipe (01) respectively, first end plate (04) at inner sleeve (02) and outer tube (03) two ends and the second end plate (05) and through inner sleeve (02), one or more presstressed reinforcing steel (06) of the first end plate (04) and the second end plate (05), the the first crisscross joint plate (07) and the second crisscross joint plate (08) that the first end plate (04) is connected with the second end plate (05) and with core core pipe (01) and external structure is each passed through as link, first end plate (04) and the second end plate (05) are not all fixed to core core pipe (01), the two ends of inner sleeve (02) and outer tube (03), the two ends being in one or more presstressed reinforcing steel (06) of Tensile long status are fixed to the outside of the first end plate (04) and the second end plate (05) respectively by ground tackle (09), as figs 11-13, the two ends of core core pipe (01) all offer cross bath (15) and are connected to the first crisscross joint plate (07) and the second crisscross joint plate (08) respectively by cross bath (15), first crisscross joint plate (07) and the second crisscross joint plate (08) are connected to inner sleeve (02) and outer tube (03) one end respect to one another respectively.
Wherein, when the two ends of one or more presstressed reinforcing steel (06) are fixed to the outside of the first end plate (04) and the second end plate (05) respectively by ground tackle (09), it has been in Tensile long status, that is no matter the triple round steel pipe self reset curvature-prevention of one disclosed by the invention supports tension is extended or pressurized shortening, one or more presstressed reinforcing steel (06) is in further Tensile long status all the time, then guarantees elastic recovery properties and realizes efficient Self-resetting effect.
As shown in Figure 2, in the embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, inner sleeve (02) and outer tube (03) isometric, the length of core core pipe (01) equals the length of inner sleeve (02) and outer tube (03), in addition, in other embodiments that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, the length of core core pipe (01) also can be shorter than the length of inner sleeve (02) and outer tube (03), not shown.
Fig. 3,5-7 are respectively A-A, C-C, D-D and E-E generalized section in Fig. 2, as as shown in Fig. 3,5-7, in order to energy during earthquake can be consumed, in the embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, inner sleeve (02), between outer tube (03) and core core pipe (01), leave hole.In the other embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, inner sleeve (02), between outer tube (03) and core core pipe (01), be provided with glide lamella, glide lamella is preferably vulcanie, ensure that core core pipe (01) can free sliding deformation consumed energy, there is stronger energy dissipation capacity.
Fig. 4 and Fig. 8 is respectively B-B and the F-F generalized section in Fig. 2, as shown in figs. 4 and 8, in the embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, first end plate (04) and the second end plate (05) middle part all offer cross bath (10 and 13), first crisscross joint plate (07) and the second crisscross joint plate (08) are respectively movably through the cross bath (10 and 13) in the middle part of the first end plate (04) and the second end plate (05), that is the first end plate (04) is not fixed to the first crisscross joint plate (07), second end plate (05) is not fixed to the second crisscross joint plate (08) yet.
Fig. 9 is inner sleeve generalized section, as shown in Figure 9, in the embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, inner sleeve (02) two ends all offer cross bath (11 and 12), composition graphs 6, shown in Fig. 7 and Fig. 2, first crisscross joint plate (07) is connected to the cross bath (11) of inner sleeve (02) wherein one end, second crisscross joint plate (08) is freely movably through the cross bath (12) of the other one end of inner sleeve (02), that is inner sleeve (02) two ends only have wherein one end and crisscross joint plate to be connected and fixed by cross bath (11), one end is not connected and fixed with crisscross joint plate in addition, crisscross joint plate is just through its cross bath (12), and the length of cross bath (12) is limited to ensure in loading process of the present invention that second crisscross joint plate (08) can move freely.
Figure 10 is outer tube generalized section, as shown in Figure 10, in the embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, outer tube (03) tube wall only has one end to offer cross bath (14) to connect crisscross joint plate, known shown in composition graphs 1-9, outer tube (03) all only has the cross bath of one end to be connected with crisscross joint plate with inner sleeve (02), and its link is relative, namely the first crisscross joint plate (07) is connected to the cross bath (11) of inner sleeve (02) wherein one end, and the second crisscross joint plate (08) is connected to the cross bath (14) of outer tube (03) wherein one end.
Therefore, in the embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, all Self-resetting function can be played in short-term when tension is extended and by compression, for example, as shown in Figure 2, if, external structure supports a pressure by the first crisscross joint plate (07) to the triple round steel pipe self reset curvature-prevention of one disclosed by the invention, because the first crisscross joint plate (07) is connected with core core pipe (01) and inner sleeve (02) with cross bath (11) respectively by cross bath (15), and the first crisscross joint plate (07) is movably through the cross bath (10) at the first end plate (04) middle part, therefore the first crisscross joint plate (07) can be with kinetonucleus core pipe (01) and inner sleeve (02) to move to the second end plate (05) direction, because core core pipe (01) is flexible pipe, inner sleeve (02) is rigid pipe, therefore, first crisscross joint plate (07) only can drive inner sleeve (02) to move to the second end plate (05) direction, because the second end plate (05) holds out against the other end of inner sleeve (02), so inner sleeve (02) moves to the second end plate (05) direction can make the second end plate (05) outwards movement, if the now outside mobile 10cm of the second end plate, the position of the first end plate (04) is by constant simultaneously, now one or more presstressed reinforcing steel (06) will extend 10cm, now one or more presstressed reinforcing steel (06) realizes Self-resetting because having elastic recovery properties.
In like manner, when external structure supports a pulling force by the first crisscross joint plate (07) to the triple round steel pipe self reset curvature-prevention of one disclosed by the invention, or when external structure supports a pressure or pulling force by the second crisscross joint plate (08) to the triple round steel pipe self reset curvature-prevention of one disclosed by the invention, or when external structure supports two pressure or pulling force to the triple round steel pipe self reset curvature-prevention of one disclosed by the invention by the first crisscross joint plate (07) and the second crisscross joint plate (08) simultaneously, one or more presstressed reinforcing steel (06) all can extend.
Figure 11 is perforate core core pipe generalized section, Figure 14 is the G-G generalized section in Figure 11, as Figure 11 and Figure 14, in the embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, cross bath (15) is opened to connect the first crisscross joint plate (07) and the second crisscross joint plate (08) in core core pipe (01) tube wall both ends, offers multiple holes (16) of circle distribution along core core pipe (01) and axial distribution in the middle part of core core pipe (01) tube wall.
Figure 12 is out short trough core core pipe generalized section, Figure 15 is the H-H generalized section in Figure 12, as as shown in Figure 12 and 15, in another embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, cross bath (15) is opened to connect the first crisscross joint plate (07) and the second crisscross joint plate (08) in core core pipe (01) tube wall both ends, offers the multiple short groove (17) of circle distribution along core core pipe (01) and axial distribution in the middle part of core core pipe (01) tube wall.
Figure 13 is cutting elongated groove core core pipe generalized section, Figure 16 is the I-I generalized section in Figure 13, as as shown in Figure 13 and Figure 16, in another embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, cross bath (15) is opened to connect the first crisscross joint plate (07) and the second crisscross joint plate (08) in core core pipe (01) tube wall both ends, offers the multiple elongated slot of circle distribution (18) along core core pipe (01) in the middle part of core core pipe (01) tube wall.
The embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports all is made up of steel, have lightweight, Self-resetting is effective, the advantage that anti-flexion capabilities is strong, under geological process, external structure makes core core pipe (01) bear the reciprocal alternate load of tension and compression by the first crisscross joint plate (07) and the second crisscross joint plate (08), in the first end plate (04), second end plate (05), under the compound action of inner sleeve (02) and outer tube (03), one or more presstressed reinforcing steel (06) is in Tensile long status all the time and guarantees efficient elastic recovery properties and produce very strong self-resetting capability, inner sleeve (02) and outer tube (03) are simultaneously in order to prevent the compressive buckling of core core pipe (01), particularly in the middle part of core core pipe (01) tube wall preferred aperture (16), open in the embodiment of short groove (17) and cutting elongated groove (18), make core core pipe (01) at pressurized like this and left behind and all first can enter flexing further, thus its Hysteresis Behavior is more excellent, can produce the very little and two flag-shaped hysteretic loops that energy dissipation capacity is very strong of permanent set under the superposition of Self-resetting effect.While a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports and has metal damper energy dissipation capacity; possesses efficient self-resetting capability; both can serve as " fuse " in the structure to do in order to protect agent structure; the permanent set of structure or component can be reduced again, improve the collapse resistant capacity of structure further.
The embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports has stronger energy dissipation capacity, in macroseism, energy rate is introduced into power consumption state, the earthquake response of earthquake energy and attenuating structure, protection agent structure component exempts from damage, thus guarantees the safety of structure; There is again very strong self-resetting capability simultaneously, reduce the permanent set of structure or component, improve the collapse resistant capacity of structure further.In general, structure is higher, more soft, span is larger, consume damping effect more remarkable, on the other hand, structure is higher, more soft, span is larger, and the impact that permanent set is brought is more responsive, therefore, one disclosed by the invention triple round steel pipe self reset curvature-prevention support technology is advanced, can comply with the developing direction of modern building fabric.
The embodiment that a kind of triple round steel pipe self reset curvature-prevention disclosed by the invention supports, possesses all advantages of the anti-buckling support of common metal class, as reduced structural seismic response by " flexible energy ", to reduce the quantity of lateral resistant member in structure, reduce component section, save construction costs, and alleviate traditional anti-seismic structure system and meet that the structure that shockproof requirements causes is stronger, rigidity is larger, the problem that geological process is also larger by strengthening structure lateral rigidity; The simultaneously performance of self-resetting capability, reduces the permanent set of structure or component after earthquake, while improving structure collapse resistant capacity further, also reduces the scale that demolishing buildings is rebuild, raise the efficiency and reduce economic loss for post earthquake recovery reconstruction.Meanwhile, just support itself, Self-resetting performance can make it shake the excessive permanent set of rear unlikely generation, and then reduces the turnover rate of support, can reduce economic loss further.
Last it is noted that obviously, above-described embodiment is only for example of the present invention is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among protection scope of the present invention.
Claims (10)
1. a triple round steel pipe self reset curvature-prevention supports, comprise the core core pipe as energy-consuming parts, two as anti-buckling parts are located in described core core pipe respectively, outer for preventing inner sleeve and the outer tube of described core core pipe flexing, two as Self-resetting parts hold out against described core core pipe respectively, first end plate at described inner sleeve and described outer tube two ends and the second end plate and through described inner sleeve, one or more presstressed reinforcing steel of described first end plate and described second end plate, the the first crisscross joint plate and the second crisscross joint plate that described first end plate is connected with the second end plate and with described core core pipe and external structure is each passed through as link, described first end plate and described second end plate are not all fixed to described core core pipe, the two ends of described inner sleeve and described outer tube, the two ends being in described one or more presstressed reinforcing steel of Tensile long status are fixed to the outside of described first end plate and described second end plate respectively by ground tackle, the two ends of described core core pipe all offer cross bath and are connected to described first crisscross joint plate and described second crisscross joint plate respectively by described cross bath, described first crisscross joint plate and described second crisscross joint plate are connected to described inner sleeve and described outer tube one end respect to one another respectively.
2. a kind of triple round steel pipe self reset curvature-prevention as claimed in claim 1 supports, and it is characterized in that: described inner sleeve and described outer tube isometric, the length of described core core pipe equals or is shorter than the length of described inner sleeve and described outer tube.
3. a kind of triple round steel pipe self reset curvature-prevention as claimed in claim 1 supports, and it is characterized in that: all offer cross bath in the middle part of described first end plate and described second end plate.
4. a kind of triple round steel pipe self reset curvature-prevention as claimed in claim 1 supports, and it is characterized in that: described first crisscross joint plate and described second crisscross joint plate are respectively movably through the cross bath in the middle part of the first end plate and the second end plate.
5. a kind of triple round steel pipe self reset curvature-prevention as claimed in claim 1 supports, it is characterized in that: described inner sleeve two ends all offer cross bath, described first crisscross joint plate is connected to the cross bath of described inner sleeve wherein one end, and described second crisscross joint plate is freely movably through the cross bath of the other one end of described inner sleeve.
6. a kind of triple round steel pipe self reset curvature-prevention as claimed in claim 1 supports, and it is characterized in that: offer along the described circle distribution of core core pipe and multiple holes of axial distribution in the middle part of described core core tube wall.
7. a kind of triple round steel pipe self reset curvature-prevention as claimed in claim 1 supports, and it is characterized in that: offer along the described circle distribution of core core pipe and the multiple short groove of axial distribution in the middle part of described core core tube wall.
8. a kind of triple round steel pipe self reset curvature-prevention as claimed in claim 1 supports, and it is characterized in that: offer the multiple elongated slot of circle distribution along described core core pipe in the middle part of described core core tube wall.
9. a kind of triple round steel pipe self reset curvature-prevention as claimed in claim 1 supports, and it is characterized in that: described inner sleeve, leave hole or be provided with glide lamella between described outer tube and described core core pipe.
10. a kind of triple round steel pipe self reset curvature-prevention as claimed in claim 9 supports, and it is characterized in that: described glide lamella is vulcanie.
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| CN107893563A (en) * | 2017-11-16 | 2018-04-10 | 山东大学 | Assembled Self-resetting energy dissipation brace device |
| CN108222625A (en) * | 2018-02-05 | 2018-06-29 | 沈阳建筑大学 | A kind of angular plate inner core assembled buckling restrained brace of four aluminium alloys |
| CN108755953A (en) * | 2018-05-23 | 2018-11-06 | 北京交通大学 | Self-resetting semi-girder truss based on viscoplasticity energy consumption |
| CN113775070A (en) * | 2021-08-26 | 2021-12-10 | 河北建筑工程学院 | Novel self-resetting buckling restrained brace |
| CN114960949A (en) * | 2022-06-29 | 2022-08-30 | 西安建筑科技大学 | End rigidity lifting steel bar constraint circular steel tube component |
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| CN107083812B (en) * | 2017-06-01 | 2019-02-05 | 西北工业大学 | A kind of anti-buckling support based on Yoshimura pattern folding line tubular type core material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107338870A (en) * | 2017-08-28 | 2017-11-10 | 北京堡瑞思减震科技有限公司 | A kind of function with the support of Self-resetting armpit can recover steel-frame structure |
| CN107338870B (en) * | 2017-08-28 | 2023-08-04 | 北京堡瑞思减震科技有限公司 | Function restorable steel frame structure with self-resetting armpit support |
| CN107893563A (en) * | 2017-11-16 | 2018-04-10 | 山东大学 | Assembled Self-resetting energy dissipation brace device |
| CN108222625A (en) * | 2018-02-05 | 2018-06-29 | 沈阳建筑大学 | A kind of angular plate inner core assembled buckling restrained brace of four aluminium alloys |
| CN108755953A (en) * | 2018-05-23 | 2018-11-06 | 北京交通大学 | Self-resetting semi-girder truss based on viscoplasticity energy consumption |
| CN113775070A (en) * | 2021-08-26 | 2021-12-10 | 河北建筑工程学院 | Novel self-resetting buckling restrained brace |
| CN114960949A (en) * | 2022-06-29 | 2022-08-30 | 西安建筑科技大学 | End rigidity lifting steel bar constraint circular steel tube component |
| CN114960949B (en) * | 2022-06-29 | 2024-04-09 | 西安建筑科技大学 | End rigidity lifting steel bar constraint round steel pipe member |
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