CN211817104U - Controllable-performance corrugated type replaceable energy dissipation device - Google Patents
Controllable-performance corrugated type replaceable energy dissipation device Download PDFInfo
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- CN211817104U CN211817104U CN202020054572.9U CN202020054572U CN211817104U CN 211817104 U CN211817104 U CN 211817104U CN 202020054572 U CN202020054572 U CN 202020054572U CN 211817104 U CN211817104 U CN 211817104U
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Abstract
The invention belongs to the technical field of energy dissipation and shock absorption of constructional engineering, and provides a corrugated type replaceable energy dissipation device with controllable performance, which mainly comprises a corrugated steel plate and two connecting plates; the corrugated steel plate is of an integral structure, and two ends of the corrugated steel plate are respectively welded with the connecting plate to form an I-shaped structure. The corrugation of the corrugated steel plate can effectively avoid out-of-plane buckling, improve out-of-plane rigidity, further remarkably reduce in-plane bearing capacity and rigidity degradation, and has a full hysteresis curve and improved energy consumption capability; through changing the included angle of corrugated line direction and connecting plate, can adjust the bearing capacity and the rigidity of corrugated steel board, realize the reinforcing or weakening to flat steel board, and then can accurately match the actual demand of different projects to the attenuator. Compared with the prior art, the steel plate has the advantages of simple manufacturing process, stable performance of the steel plate, convenience in installation, high energy consumption capability, controllable bearing capacity and rigidity, capability of being replaced after an earthquake so as to quickly recover the use function of the structure and the like, and can be used for improving the function recoverability of the structure after the earthquake.
Description
Technical Field
The invention belongs to the technical field of energy dissipation and shock absorption of constructional engineering, and particularly relates to a corrugated type replaceable energy dissipation device with controllable performance.
Background
The traditional anti-seismic design concept takes life protection as a primary target, and brittle failure and even collapse of the structure under the action of an earthquake are avoided through ductile design, so that casualties are reduced. In order to achieve the anti-seismic aim, the design specification allows the main anti-lateral force component of the structure to generate plastic deformation so as to dissipate the input energy of the earthquake, so that the structural component generates damage and residual deformation, and the structure is difficult to repair after the earthquake and then loses the use function. The recent occurrence of several earthquakes shows that the life safety is far from enough as the earthquake-proof design target, and the functional recoverability of the structure after earthquake is equally important. In order to achieve rapid restoration of post-earthquake functions of an engineering structure, there are various implementation methods, for example, energy dissipaters are introduced into the structure to dissipate earthquake energy, so as to reduce damage to main structural members; the function of the structure is rapidly recovered after the replaceable component shakes.
As one of energy dissipaters, a metal type energy dissipater dissipates energy by plastic deformation of a steel plate, and is widely used due to its advantages of simple structure, stable hysteretic performance, good economical efficiency, and the like. Once the steel plate is locally bent, the hysteresis curve of the steel plate under the action of reciprocating load can generate an obvious pinching effect, which is not beneficial to dissipating earthquake energy, in order to prevent the steel plate from being bent outside the surface in a working state, the conventional method is to weld stiffening ribs on the steel plate or arrange a constraint plate on the outer side of the steel plate, but the welding action can influence the stability of the performance of the steel plate and the low-cycle fatigue resistance of the steel plate, and the constraint plate arranged on the outer side of the steel plate increases the manufacturing difficulty on the one hand, and increases the weight of the energy dissipater on the other hand, which is not beneficial to quick repair and replacement after earthquake.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a replaceable energy dissipater with controllable performance in a corrugated type, wherein the energy dissipater changes the geometric section of a steel plate from a rectangular shape to a corrugated type, provides out-of-plane constraint for the steel plate, can obviously improve the out-of-plane rigidity and the buckling strength of the steel plate, and simultaneously fully utilizes the plastic deformation of steel to improve the seismic energy dissipation capability of the steel plate.
The technical scheme of the invention is as follows:
a performance-controllable corrugated type replaceable energy dissipation device mainly comprises a corrugated steel plate 1 and two connecting plates 2; the corrugated steel plate 1 is of an integral structure, and two ends of the corrugated steel plate are respectively welded with the connecting plate 2 to form an I-shaped structure; corrugated steel plate 1 is connected with surrounding structural members through connecting plate 2, makes things convenient for quick restoration and the change after the shake.
The corrugated steel plate 1 is welded in the middle of the two connecting plates 2, and the corrugations of the corrugated steel plate 1 are distributed in an anti-symmetric manner about the center line of the connecting plates 2.
The corrugated shape of the corrugated steel plate 1 is any shape such as trapezoid, triangle, trigonometric function curve, semicircle and the like, and the included angle between the corrugated line direction and the connecting plate is any angle. The included angle between the corrugated line direction of the corrugated steel plate and the connecting plate 2 can be any angle such as 0 degree, 45 degrees, 90 degrees and the like. The bearing capacity and the rigidity of the corrugated steel plate can be adjusted by changing the included angle between the corrugated line direction and the connecting plate, and the actual requirements of different projects on the damper can be accurately matched.
The connecting plate 2 has a geometric dimension corresponding to that of the corrugated steel plate 1, and the connecting plate 2 is provided with bolt holes and is matched with corresponding bolt and nut assemblies.
The performance-controllable corrugated type replaceable energy dissipation device is fixed between the structural columns 3 of two structural beams 4 through high-strength bolts, or fixed between the structural columns 3 of one structural beam 4, or fixed on the structural beam 4.
The corrugated replaceable energy dissipater with controllable performance is convenient and quick to manufacture, is welded into a whole and then is connected with surrounding components through the connecting plate 2 by bolts, is convenient to install on site, and can achieve the purpose of quick repair and replacement by screwing and disassembling the bolts after an earthquake.
The invention has the beneficial effects that:
(1) the corrugated replaceable energy dissipater has a simple structure, is convenient to manufacture, can be prefabricated in a factory, and is beneficial to realizing the assembly construction of the structure and transporting the structure to a site for assembly. And the energy dissipation device is connected with the structural member through the bolt, so that the energy dissipation device is convenient to replace after the earthquake, the cost and time for repairing after the earthquake are effectively reduced, and the capability of quickly recovering the functions of the building structure after the earthquake is improved.
(2) The corrugations of the corrugated replaceable energy dissipation device can provide out-of-plane restraint for a steel plate, out-of-plane buckling is effectively avoided, out-of-plane rigidity is improved, in-plane bearing capacity and rigidity degradation are further remarkably reduced, a hysteresis curve is full, and energy consumption capacity is improved. In addition, the corrugated replaceable energy dissipater is manufactured in a rolling mode, and adverse effects on the performance of the steel plate caused by the welding heat effect when the steel plate is welded on the outer side are avoided.
(3) Compared with the flat steel plate with the same size, the corrugated replaceable energy dissipater can adjust the bearing capacity and rigidity of the energy dissipater by changing the included angle between the corrugated line direction and the connecting plate, realize the reinforcement or weakening of the flat steel plate, and accurately match the actual requirements of different projects on the damper.
(4) On the premise of the same bearing capacity, the energy dissipaters with different rigidity can be obtained by adjusting the size of the corrugated type replaceable energy dissipater, the included angle between the corrugated line direction and the connecting plate, so that the mutual independence of the bearing capacity and the rigidity can be realized, and the actual requirements of different projects on the damper can be further accurately matched.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention, wherein (a) is an eccentric support system, (b) is a steel support frame system, and (c) is a column-connected steel frame system.
Figure 2 is a schematic connection diagram of a controllable-performance corrugated replaceable energy dissipater of the present invention.
Figure 3 is a schematic diagram of corrugations of a controllable-performance corrugated-type replaceable energy dissipater of the present invention, (a) trapezoidal corrugations, (b) triangular corrugations, and (c) semicircular corrugations.
Fig. 4 is a schematic structural diagram of a controllable-performance corrugated replaceable energy dissipater of the present invention, where (a) an included angle between a corrugated direction and a connecting plate is 0 degree, (b) an included angle between the corrugated direction and the connecting plate is 45 degrees, and (c) an included angle between the corrugated direction and the connecting plate is 90 degrees.
In the figure: 1, corrugated steel plates; 2, connecting a plate; 3 structural columns; 4, a structural beam; 5 high-strength bolt.
Detailed Description
The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.
Example 1: as shown in fig. 1, the invention relates to a corrugated replaceable energy dissipater with controllable performance, which mainly comprises a corrugated steel plate 1 and a connecting plate 2, and the energy dissipater can be placed at different positions of different structural systems, such as energy dissipation beam sections of an eccentric support system, energy dissipation supports of a steel support frame system, steel columns and steel columns of a column-connected steel frame system, and the like. The corrugated steel plate 1 is formed by rolling in a factory, the corrugated steel plate 1 is connected with the two connecting plates 2 in a welding mode, the corrugated steel plate 1 keeps elasticity under the action of frequent earthquakes, and the corrugated steel plate can be bent to consume energy under the action of a defense earthquake and a rare earthquake.
Further, as shown in fig. 2, after the corrugated steel plate 1 and the connecting plate 2 are welded into a whole, the corrugated steel plate is connected with surrounding structural members through high-strength bolts 5, so that the repair and replacement after the earthquake are facilitated.
Further, as shown in fig. 3, the cross section of the corrugated steel plate 1 is in the form of trapezoidal corrugation, triangular corrugation, semicircular corrugation, and the like, and the starting point of the corrugation of the corrugated steel plate 1 is the center of the hypotenuse.
Further, as shown in fig. 4, the included angle between the corrugation direction of the corrugated steel plate 1 and the connecting plate 2 may be any angle such as 0 degree, 45 degrees, 90 degrees, and the like.
The corrugated type replaceable energy dissipater with controllable performance can realize factory prefabrication and field assembly.
The invention dissipates the earthquake energy through the corrugated steel plate which is integrally formed, improves the out-of-plane rigidity, avoids out-of-plane buckling, reduces the in-plane rigidity and the degradation degree of the bearing capacity, and leads the in-plane force-displacement hysteresis curve to be full. Meanwhile, the aim of quickly repairing after the earthquake is fulfilled through bolt connection. The invention has clear concept, convenient construction and reasonable cost, and can be widely applied to important building structures in high-intensity earthquake areas.
What has been described above is only a preferred embodiment of the present invention, and what is shown in the drawings is only one embodiment of the present invention, and the actual form of the damper is not limited thereto. It is noted that modifications and variations to these embodiments will be readily apparent to those skilled in the art. Therefore, the present invention is not limited to the embodiments herein, and those skilled in the art should understand that, according to the disclosure of the present invention, improvements and modifications can be made without departing from the scope of the present invention, and without inventive design of the damper form and embodiments similar to the technical solution, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (3)
1. A performance-controllable corrugated type replaceable energy dissipater is characterized by mainly comprising a corrugated steel plate (1) and two connecting plates (2); the corrugated steel plate (1) is of an integral structure, and two ends of the corrugated steel plate are respectively welded with the connecting plate (2) to form an I-shaped structure; the corrugated steel plate (1) is connected with surrounding structural members through the connecting plate (2), so that the rapid repair and replacement after the earthquake are facilitated;
the corrugated steel plate (1) is welded in the middle of the two connecting plates (2), and the corrugations of the corrugated steel plate (1) are distributed in an anti-symmetric mode about the center line of the connecting plates (2).
2. The replaceable energy dissipater of controllable corrugated type according to claim 1, wherein the corrugated shape of the corrugated steel plate (1) is trapezoidal, triangular, trigonometric or semicircular, and the included angle between the corrugated line direction and the corrugated steel plate (1) is any angle.
3. A performance controlled replaceable energy dissipater of the corrugated type according to claim 1 or 2, wherein the connecting plates (2) have a geometry corresponding to that of the corrugated steel plates (1), and the connecting plates (2) are provided with bolt holes and are fitted with corresponding bolt and nut assemblies.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020054572.9U CN211817104U (en) | 2020-01-12 | 2020-01-12 | Controllable-performance corrugated type replaceable energy dissipation device |
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| CN202020054572.9U CN211817104U (en) | 2020-01-12 | 2020-01-12 | Controllable-performance corrugated type replaceable energy dissipation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119364A (en) * | 2020-01-12 | 2020-05-08 | 大连理工大学 | Controllable-performance corrugated type replaceable energy dissipation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119364A (en) * | 2020-01-12 | 2020-05-08 | 大连理工大学 | Controllable-performance corrugated type replaceable energy dissipation device |
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