CN210105031U - Replaceable shear wall foot support based on shape memory alloy - Google Patents
Replaceable shear wall foot support based on shape memory alloy Download PDFInfo
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- CN210105031U CN210105031U CN201920729839.7U CN201920729839U CN210105031U CN 210105031 U CN210105031 U CN 210105031U CN 201920729839 U CN201920729839 U CN 201920729839U CN 210105031 U CN210105031 U CN 210105031U
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Abstract
The application belongs to the field of recoverable functional structure systems, and relates to a replaceable shear wall foot support based on shape memory alloy. The shape memory alloy wire is fixed on an upper connecting steel plate and a lower connecting steel plate of the tension-compression combined shock absorption and isolation component in a spiral shape through a positioning block, the upper connecting steel plate is connected with the shear wall through a bolt, and the lower connecting steel plate is connected with a lower floor component through a bolt to form a novel replaceable shear wall foot support. The shear wall is simple in construction, the superelasticity and deformation restorability of the shape memory alloy material are fully utilized to be applied to the shear wall foot part with the restorable function, and the shear wall has multiple advantages of achieving dissipation of seismic energy and automatic recovery after earthquake, prolonging service life and the like.
Description
Technical Field
The utility model belongs to recoverable functional structure system field, concretely relates to removable shear force wall foot support based on shape memory alloy.
Background
The engineering structure can lead to the continuous aggravation of damaged degree because of the continuous accumulation of residual deformation under the strong shock effect, finally probably produces the whole collapse. Therefore, the rapid and effective recovery of the residual deformation is one of the effective ways to improve the seismic performance of the engineering structure. Based on the demand and consideration for rapidly recovering the structural function of the shear wall after the earthquake, the novel shear wall with the replaceable foot component is produced.
Chinese patent CN 101775854 a discloses a novel shear wall of removable foot component, and this application is installed shock attenuation shock insulation part in the headspace of shear wall foot, can conveniently change foot component after the shear wall foot is impaired, resumes shear wall's structural function rapidly, has significantly reduced more traditional shear wall and has shaken reinforced (rfd) work load and the degree of difficulty after, but structure power consumption ability and part life remain to be promoted.
The seismic structural system utilizing the recoverable function of the shape memory alloy is currently in the conversion stage from the recoverable performance of the shape memory alloy material and the component to the performance research of the structural system.
Disclosure of Invention
The purpose of the application is to overcome the defects in the prior art, provide a replaceable shear wall foot support based on shape memory alloy, adopt shape memory alloy materials with super-elasticity performance to replace the traditional steel sheet and rubber combined support to be applied to a shear wall foot, fully utilize the energy consumption and deformation restorability characteristics of the super-elasticity shape memory alloy, simultaneously achieve the dissipation of seismic energy and automatic recovery after the earthquake, and prolong the service life.
The problems to be solved by the application are realized by the following technical scheme:
a replaceable shear wall foot support based on shape memory alloy comprises a tension-compression combined shock absorption and isolation component, shape memory alloy wires, an upper connecting steel plate and a lower connecting steel plate;
the tension-compression combined shock absorption and isolation component is positioned between the upper connecting steel plate and the lower connecting steel plate and comprises a low-yield-strength steel plate, laminated rubber and a lead core; a circular preformed hole is formed in the middle of the laminated rubber for filling a lead core, and the low-yield-strength steel plates are bonded to the left side and the right side of the laminated rubber; the outer side of the low-yield-strength steel plate is provided with a shape memory alloy wire; the shape memory alloy wire is spiral, and the upper end and the lower end of the shape memory alloy wire are respectively connected with the upper connecting steel plate and the lower connecting steel plate.
Furthermore, the upper connecting steel plate and the lower connecting steel plate are respectively provided with a threaded hole which is matched with the thread of the shape memory alloy wire; the two ends of the shape memory alloy wire are straight, the straight part of the shape memory alloy wire is threaded, and the shape memory alloy wire is respectively screwed with the upper connecting steel plate and the lower connecting steel plate at the threaded part and is fixed by bolts.
Furthermore, a foot reserved space of the shear wall of the structural foundation is reserved, and the replaceable shear wall foot support based on the shape memory alloy is arranged in the foot reserved space of the shear wall and is connected with the shear wall and the lower floor component through an upper connecting steel plate and a lower connecting steel plate respectively by bolts.
In this application, when dynamic load effect, when drawing and pressing combination shock attenuation part power consumption shock attenuation, shape memory alloy silk is in the super elastic deformation of austenite state atress production, dissipates seismic energy constantly in the vibration process, can effectively improve the shock attenuation shock insulation ability of whole component.
Compared with the prior art, the beneficial effects of this application are:
(1) the elastic shape memory alloy material is adopted to replace the traditional steel sheet and rubber combined support to be applied to the shear wall footing, the energy consumption and deformation restorability characteristics of the elastic shape memory alloy material are fully utilized, the seismic energy can be dissipated, the elastic shape memory alloy material can be automatically restored after the seismic, and the elastic shape memory alloy material has a longer service life.
(2) The shape memory alloy material is high in manufacturing cost and limited by the current production specification, spiral threads are selected in the shape, the material consumption is reduced, and the production is convenient.
(3) The spiral alloy wire is simple in integral structure and convenient to construct, straight threads are formed at two ends of the spiral alloy wire, and the spiral alloy wire is respectively screwed with the drill threads of the upper and lower connecting steel plates and is connected by a bolt fixing method. The material is convenient to obtain, the manufacturing cost is considered, and the popularization and the application are convenient.
Description of the drawings:
FIG. 1 illustrates a cross-sectional view of a shape memory alloy based replaceable shear wall foot mount provided by an embodiment of the present application;
FIG. 2 illustrates a top view of a shape memory alloy based replaceable shear wall foot mount provided by an embodiment of the present application;
FIG. 3 is a schematic view showing the connection between the shape memory alloy wire and the upper and lower connecting steel plates according to the embodiment of the present application;
FIG. 4 illustrates a schematic view of the installation of a replaceable shear wall foot support based on shape memory alloy according to an embodiment of the present application.
Description of the reference numerals
The composite floor comprises a tension-compression combined shock absorption and isolation component 1, a low-yield-strength steel plate 11, laminated rubber 12, shape memory alloy wires 2, bolts 3, upper connecting steel plates 4, lower connecting steel plates 5, shear walls 6 and lower floor components 7.
Detailed Description
The present application will now be described in detail with reference to the drawings and specific examples.
As shown in fig. 1 to 4, the replaceable shear wall foot support based on the shape memory alloy comprises a tension-compression combined shock absorption and isolation component 1, a shape memory alloy wire 2, an upper connecting steel plate 4, a lower connecting steel plate 5 and a positioning block 8.
The tension-compression combined shock absorption and isolation component 1 is positioned between an upper connecting steel plate 4 and a lower connecting steel plate 5, and the tension-compression combined shock absorption and isolation component 1 comprises a low-yield-strength steel plate 11, laminated rubber 12 and a lead core; a round preformed hole is formed in the middle of the laminated rubber 12 and used for pouring lead cores, and the low-yield-strength steel plates 11 are bonded to the left side and the right side of the laminated rubber 12; the outer side of the low-yield-strength steel plate 11 is provided with a shape memory alloy wire 2; the shape memory alloy wire 2 is spiral, and the upper end and the lower end of the shape memory alloy wire are respectively connected with an upper connecting steel plate 4 and a lower connecting steel plate 5.
Further, the upper end and the lower end of the shape memory alloy wire 2 are straight, and a thread is arranged on the straight part; meanwhile, the upper connecting steel plate 4 and the lower connecting steel plate 5 are respectively provided with a threaded hole which is matched with the thread of the shape memory alloy wire 2; the upper end and the lower end of the shape memory alloy wire 2 respectively penetrate through the threaded holes of the upper connecting steel plate 4 and the lower connecting steel plate 5 by a small amount and are screwed at the corresponding threaded holes through respective threads; further, the screw holes of the upper and lower connecting steel plates 4 and 5 are fixed by bolts, respectively, as shown in fig. 3.
Further, a foot reserved space of the shear wall 6 of the structural foundation is reserved, the replaceable shear wall foot support based on the shape memory alloy is arranged in the foot reserved space of the shear wall 6 and is connected with the shear wall 6 and the lower floor component 7 through the upper connecting steel plate 4 and the lower connecting steel plate 5 respectively by bolts.
In the application, when dynamic load acts, the shape memory alloy wire 2 in the austenite state at normal temperature is stressed to generate superelasticity deformation when the combined shock absorption and isolation component 1 is pulled and pressed to dissipate energy and shock, seismic energy is continuously dissipated in the vibration process, and the shock absorption and isolation capability of the whole component can be effectively improved.
This application is described in terms of particular embodiments, but those skilled in the art can readily adapt and adapt for such applications and to apply the general principles described herein to other embodiments. Therefore, the present application is not limited to the embodiments described herein, and modifications made by those skilled in the art based on the disclosure of the present application without departing from the scope of the present application should be considered as within the scope of the claims.
Claims (3)
1. The utility model provides a removable shear wall foot support based on shape memory alloy which characterized in that: comprises a tension-compression combined shock absorption and isolation component (1), a shape memory alloy wire (2), an upper connecting steel plate (4) and a lower connecting steel plate (5);
the tension-compression combined shock absorption and isolation component (1) is positioned between the upper connecting steel plate (4) and the lower connecting steel plate (5), and the tension-compression combined shock absorption and isolation component (1) comprises a low-yield-strength steel plate (11), laminated rubber (12) and a lead core; a round preformed hole is formed in the middle of the laminated rubber (12) for filling a lead core, and the low-yield-strength steel plates (11) are bonded to the left side and the right side of the laminated rubber (12); the outer side of the low-yield-strength steel plate (11) is provided with a shape memory alloy wire (2); the shape memory alloy wire (2) is spiral, and the upper end and the lower end of the shape memory alloy wire are respectively connected with the upper connecting steel plate (4) and the lower connecting steel plate (5).
2. The shape memory alloy-based replaceable shear wall foot mount of claim 1, wherein: two ends of the shape memory alloy wire (2) are straight, and the straight parts are respectively provided with threads;
the upper connecting steel plate (4) and the lower connecting steel plate (5) are respectively provided with a threaded hole which is matched with the thread of the shape memory alloy wire (2);
the shape memory alloy wire (2) is respectively screwed with the upper connecting steel plate (4) and the lower connecting steel plate (5) at the threaded hole through threads at the upper end and the lower end of the shape memory alloy wire, and is fixed by a bolt.
3. A shape memory alloy based replaceable shear wall foot mount according to claim 1 or 2, wherein: the replaceable shear wall foot support based on the shape memory alloy is arranged in the foot reserved space of the shear wall (6) and is connected with the shear wall (6) and a lower floor component (7) through an upper connecting steel plate (4) and a lower connecting steel plate (5) respectively by bolts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920729839.7U CN210105031U (en) | 2019-05-21 | 2019-05-21 | Replaceable shear wall foot support based on shape memory alloy |
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| CN201920729839.7U CN210105031U (en) | 2019-05-21 | 2019-05-21 | Replaceable shear wall foot support based on shape memory alloy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258844A (en) * | 2019-05-21 | 2019-09-20 | 同济大学 | Replaceable shear wall foot support based on marmem |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258844A (en) * | 2019-05-21 | 2019-09-20 | 同济大学 | Replaceable shear wall foot support based on marmem |
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