CN214784942U - Energy consumption device based on compressive yielding or buckling deformation control - Google Patents
Energy consumption device based on compressive yielding or buckling deformation control Download PDFInfo
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- CN214784942U CN214784942U CN202120551282.XU CN202120551282U CN214784942U CN 214784942 U CN214784942 U CN 214784942U CN 202120551282 U CN202120551282 U CN 202120551282U CN 214784942 U CN214784942 U CN 214784942U
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Abstract
The utility model relates to an energy consumption device based on control of buckling deformation or yielding under pressure belongs to the building engineering structure field of combatting earthquake. The energy dissipation device comprises a shell, a piston arranged in the shell, a push-pull rod connected to one side of the piston and extending out of the shell, a reset mechanism connected to the other side of the piston, and energy dissipation elements connected to two sides of the piston; the energy dissipation element is a thin steel sheet, the end part of the thin steel sheet at one side of the piston is abutted against the shell, and the end part of the thin steel sheet at the other side of the piston is abutted against an upper limiting baffle fixedly connected in the shell; during earthquake, the thin steel sheet can be pressed to yield or bend so as to reduce the earthquake action input to the wooden frame, and the reset mechanism can generate tensile force or pressure to reset the thin steel sheet. The energy dissipation device is installed at the included angle of the connecting joint of the beam column of the wooden frame, and achieves the purposes of dissipating energy and damping, reducing the displacement of the side and preventing large deformation and even collapse. Each part is replaceable, and the processing, construction, installation and the like are simple; the material source is wide, the cost is low, and the method is suitable for wide popularization.
Description
Technical Field
The utility model belongs to building engineering structure antidetonation field relates to an energy consumption device based on pressurized yield or bucking deformation control.
Background
China is one of the most serious countries suffering from earthquake disasters in the world, and the earthquake-resistant urban area has the other characteristics of more earthquake times and wide distribution range, namely that earthquake-prone areas are just rural areas and towns with laggard economic development, and the earthquake damage of the structures is obviously higher than that of cities due to weak house construction measures, poor earthquake resistance, lack of professional design, construction guidance and the like in the areas, so that houses in villages and towns in China become the weakest link in earthquake-proof and disaster-reduction career. In order to reduce the loss of the country and the society in the earthquake, the research on the energy dissipation and shock absorption technology of the houses in the villages and small towns is of great significance.
The wooden frame is formed by connecting the wooden ring beams and the wooden constructional columns in a certain mode, has the advantages of enhancing the structural integrity, improving the structural earthquake resistance and the like, and is widely applied to the existing village and town building structures, such as a raw soil structure, a wooden frame-filled wall and the like. Under the action of an earthquake, the timber frame can be used as a second defense line after the wall fails, the collapse resistance of the timber frame is of great importance, and the collapse resistance of the timber frame is usually determined by the strength of beam-column connection nodes of the timber frame, so that the beam-column connection nodes of the timber frame are the more critical parts of the whole structure. The traditional connection mode of the beam-column connection node of the wooden framework mainly comprises tenon connection and nail-removing connection, the connection strength is limited, and the joint is easy to loosen; secondly, the construction difficulty is high and depends on the construction experience of workers; moreover, most structures have irrecoverability and non-replaceability, and do not conform to the concept of the shock absorption structure with the function recoverable advocated at present.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an energy consumption device based on compressive yielding or buckling deformation control to solve the not enough of timber frame beam column connected node's traditional connected mode existence.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the energy consumption device based on the compression yield or buckling deformation control comprises a shell, a piston arranged in the shell, a push-pull rod connected to one side of the piston and extending out of the shell, a reset mechanism connected to the other side of the piston, and energy consumption elements connected to two sides of the piston; the energy dissipation element is a thin steel sheet, the end part of the thin steel sheet at one side of the piston is abutted against the shell, and the end part of the thin steel sheet at the other side of the piston is abutted against an upper limiting baffle fixedly welded in the shell; during earthquake, the thin steel sheet can be pressed to yield or bend so as to reduce the earthquake action input to the wooden frame, and the reset mechanism can generate tensile force or pressure to reset the thin steel sheet.
Further, the push-pull rod is welded to one side of the piston.
Furthermore, the thin steel plates on each side of the piston are symmetrically distributed relative to the push-pull rod.
Furthermore, one end of the thin steel sheet is clamped by a mounting seat, and the mounting seat is fixed on the piston.
Further, the upper limit baffle is welded in the shell.
Furthermore, the reset mechanism comprises a reset spring, one end of the reset spring is connected to a spring connecting piece fixedly connected to the piston, and the other end of the reset spring is connected to a spring connecting piece fixedly connected to the inner side of the shell; the spring connecting pieces at the two ends of the reset spring are respectively fixed on the piston and the shell through screws.
Further, the shell, the piston, the push-pull rod and the reset mechanism are arranged coaxially.
Further, the shell is made of steel and comprises a cylindrical shell and end covers which are detachably connected to two ends of the shell respectively; the two ends of the shell are provided with external threads, and the end covers are correspondingly provided with matched internal threads to be connected with the shell.
Furthermore, one end of the push-pull rod extending out of the shell is provided with a hinge so as to be hinged with a wood constructional column of the wood frame; the shell body at the end opposite to the push-pull rod is provided with a hinge to be hinged with a wooden ring beam of the wooden frame, so that the wooden frame energy consumption node is formed. The beneficial effects of the utility model reside in that:
1. the utility model discloses an energy consumption device installs in timber frame beam column connected node contained angle department, and wooden collar tie beam, wooden constructional column adopt steel splint to carry out fastening connection through fastening bolt, prevent that node atress and deformation in-process from taking place relative slip. The wooden ring beam clamping plates and the wooden constructional column clamping plates are connected at the corners through hinges, and the rotation capacity of the wooden constructional beam column connecting nodes can be guaranteed. Timber frame beam column connected node is the comparatively key part of whole structure, and timber frame's collapse resistance often depends on timber frame beam column connected node's power, sets up power consumption device to important and weak link department beam column connected node of timber frame, compares in traditional joggle, takes off nail connected node, can strengthen the intensity of node, has reduced the destroyed risk of node, has solved the problem that timber frame beam column connected node received the earthquake damage. Meanwhile, the traditional wood frame beam column joint connection mode is high in construction difficulty and relatively depends on construction experience of workers, the energy consumption device can be assembled, and is relatively simple in processing, construction, installation and the like, and is particularly suitable for remote village and town areas with low manual quality and shortage of technical strength.
2. The utility model discloses an energy consumption device relies on the steel sheet yield strength as energy consumption component to realize to this stage of tensile strength. Under the action of small earthquake, the energy dissipation device and the wooden framework form a frame structure with larger lateral rigidity resistance, the structure resists earthquake by self, the thin steel sheet does not yield, and the whole body is in an elastic state; under the action of a medium shock, the push-pull rod acts on the piston under an external force, and the piston moves to instantaneously drive the thin steel sheet to act on the upper limiting baffle plate to be pressed and begin to yield or buckle; under the action of a large earthquake, the thin steel sheet does not enter a plasticity stage, so that the energy consumption device can play an energy consumption role under the action of the whole earthquake, and the wood frame is prevented from being deformed greatly and even collapsing. Meanwhile, the lateral bearing capacity of the wooden frame can be improved, the lateral displacement of the wooden frame is effectively reduced, the natural vibration period of the wooden frame is prolonged, and the purposes of energy dissipation, shock absorption and structural seismic performance improvement are achieved.
3. The utility model discloses an energy consumption device has the convertibility, after energy consumption component sheet steel loses the power consumption ability, can change new energy consumption component, can prevent coming of next proruption earthquake, and from selecting materials aspect, this energy consumption device comprises common steel, bolt, and the material source is extensive, and low in cost is more applicable to the comparatively villages and small towns area that economic ratio is laggard.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic structural view of the energy dissipation device of the present invention;
FIG. 2 is a view I-I of FIG. 1;
fig. 3 is an installation schematic diagram of the energy consumption device of the present invention.
Reference numerals: wooden constructional column 1, wooden constructional column splint 2, ring beam 3, ring beam splint 4, hinge 5, hinge 6, bolt 7, energy consumption device 8, hinge 801, push-pull rod 802, lower end cover 803, mounting seat 804, thin steel sheet 805, shell 806, piston 807, screw 808, upper limit baffle 809, spring connector 810, return spring 811, upper end cover 812, hinge 813.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1-2, an energy dissipation device 8 based on compressive yielding or buckling deformation control is disclosed, wherein the energy dissipation device 8 includes a housing made of steel and composed of a cylindrical outer shell 806, an upper end cap 812 and a lower end cap 803; the upper end and the lower end of the housing 806 are respectively provided with external threads, and the upper end cover 812 and the lower end cover 803 are correspondingly provided with matched internal threads for connecting the upper end and the lower end of the housing 806. The axis position outside the upper end cover 812 is provided with a hinge 813 for hinging with the wooden ring beam 3 of the wooden frame.
A circular piston 807 is arranged in the outer shell 806, which is coaxial with the piston, the lower side of the piston 807 is vertically welded with one end of a push-pull rod 802, which is coaxial with the piston, the other end of the push-pull rod 802 extends out of the shell through a preformed hole arranged on the axis of the lower end cover 803, and the end is also provided with a hinge 801 to be hinged with the wood constructional column 1 of the wood frame.
The upper side of piston 807 sets up the canceling release mechanical system rather than the coaxial line, and canceling release mechanical system includes reset spring 811, and the both ends of reset spring 811 link to each other with spring connector 810 respectively, and two spring connector 810 are fixed at piston 807 upside and inside upper end cap 812 through four equipartition screws 808 respectively.
Two axisymmetrically distributed dissipative elements, in this embodiment, thin steel plates 805 are connected to the upper and lower sides of the piston 807, respectively. One end of the thin steel plate 805 is clamped by a mounting seat 804, the mounting seat 804 is composed of two angle irons arranged back to back, one end of the thin steel plate 805 is inserted between the two angle irons and fastened through a bolt vertically penetrating through the angle irons and the thin steel plate 805, and the two angle irons are fixed on the piston 807 through the bolt. The other end of the thin steel plate 805 on the lower side of the piston 807 abuts against the lower end cover 803, the other end of the thin steel plate 805 on the upper side of the piston 807 abuts against an upper limit baffle 809 welded in the housing 806, and the lower end cover 803 also functions as the upper limit baffle 809. The axis of the upper limit baffle 809 is provided with a through hole for the return spring 811 to pass through, so as to avoid interference. The lower end cap 803 is equivalent to a lower limit baffle, and can limit the thin steel sheet 805 to generate tensile yield deformation of the round steel bar 805 like the upper limit baffle 809.
As shown in fig. 3, a working method of an energy consuming device based on the compressive yielding or buckling deformation control adopts the energy consuming device 8 provided in this embodiment. The wooden ring beam 3 and the wooden constructional column 1 are respectively fastened and connected through bolts 7 by adopting the wooden ring beam clamping plates 4 and the wooden constructional column clamping plates 2, so that the wooden frame beam column connection node is prevented from relative sliding in the stress and deformation processes. The wooden ring beam clamp plate 4 and the wooden constructional column clamp plate 2 at the beam-column connection node of the wooden frame are connected by the hinge 5 and the hinge 6 respectively, so that the rotation capacity of the beam-column connection node of the wooden frame is ensured.
The working method comprises the following steps:
s1, a push-pull rod 802 of an energy consumption device 8 is hinged with a wood structure column 1 of a wood frame, an upper end cover 812 is hinged with a wood ring beam 3 of the wood frame, and therefore the energy consumption device 8 is installed at an included angle of a beam-column connecting node of the wood frame;
s2, according to a design target, when the energy consumption device 8 is in a small earthquake, namely the interlayer displacement angle is 1/350, the thin steel sheet 805 in the energy consumption device 8 is not deformed, and the energy consumption device 8 does not consume energy;
when the earthquake occurs, namely the interlayer displacement angle is 1/150, the included angle of the beam-column connection node of the wood frame is increased or decreased under the action of the earthquake, so that the push-pull rod 802 moves to drive the piston 807, the thin steel sheet 805 starts to be pressed, buckled or buckled, the plastic stage is started, and the energy consumption device 8 starts to consume energy;
when the earthquake occurs, namely the interlayer displacement angle is 1/50, the thin steel sheet 805 is subjected to compression yielding or buckling but does not reach the tensile strength of steel, so that the timber frame is prevented from collapsing in the whole earthquake action, and the timber frame is also ensured to have the vertical supporting function in the earthquake;
and S3, after the earthquake is ended, the piston 807 moves under the action of elastic force provided by the return spring 811, and the moving direction of the piston is opposite to that of the piston under the action of the earthquake, so that the thin steel sheet 805 is quickly reset.
In order to realize the energy consumption of the thin steel sheet 805 under the compressive yielding, according to the euler critical stress formula, the internal force of the energy consumption device 8 under the large shock is still smaller than the euler critical stress which enables the thin steel sheet 805 to generate out-of-plane deformation, so that the thin steel sheet 805 is ensured not to generate out-of-plane deformation, and the energy consumption of the compressive yielding is realized.
If the thin steel sheet 805 needs to be subjected to compression buckling energy consumption, the cross section size and the slenderness ratio of the thin steel sheet 805 are controlled, so that the internal force of the energy consumption device 8 under a middle earthquake is larger than or equal to the Euler critical stress, the thin steel sheet 805 is subjected to out-of-plane deformation under the middle earthquake and a large earthquake, and the compression buckling energy consumption is realized.
Each part of the energy consumption device 8 is replaceable, and the processing, construction, installation and the like are simple; the material source is wide, the manufacturing cost is low, and the method is relatively suitable for rural areas with laggard economy.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (8)
1. Energy consumption device based on under-pressure yield or buckling deformation control, its characterized in that: the energy-consuming device comprises a shell, a piston arranged in the shell, a push-pull rod connected to one side of the piston and extending out of the shell, a reset mechanism connected to the other side of the piston, and energy-consuming elements connected to two sides of the piston; the energy dissipation element is a thin steel sheet, the end part of the thin steel sheet at one side of the piston is abutted against the shell, and the end part of the thin steel sheet at the other side of the piston is abutted against an upper limiting baffle fixedly connected in the shell; during earthquake, the thin steel sheet can be pressed to yield or bend so as to reduce the earthquake action input to the wooden frame, and the reset mechanism can generate tensile force or pressure to reset the thin steel sheet.
2. The energy consumption device based on the compressive yielding or buckling deformation control as claimed in claim 1, wherein: the thin steel sheets on each side of the piston are symmetrically distributed relative to the push-pull rod.
3. The energy consumption device based on the compressive yielding or buckling deformation control as claimed in claim 1, wherein: one end of the thin steel sheet is clamped by a mounting seat, and the mounting seat is fixed on the piston.
4. The energy consumption device based on the compressive yielding or buckling deformation control as claimed in claim 1, wherein: the upper limiting baffle is welded in the shell.
5. The energy consumption device based on the compressive yielding or buckling deformation control as claimed in claim 1, wherein: the reset mechanism comprises a reset spring, one end of the reset spring is connected to a spring connecting piece fixedly connected to the piston, and the other end of the reset spring is connected to a spring connecting piece fixedly connected to the inner side of the shell; the spring connecting pieces at the two ends of the reset spring are respectively fixed on the piston and the shell through screws.
6. The energy consumption device based on the compressive yielding or buckling deformation control as claimed in claim 1, wherein: the shell, the piston, the push-pull rod and the reset mechanism are arranged coaxially.
7. The energy consumption device based on the compressive yielding or buckling deformation control as claimed in claim 1, wherein: the shell is made of steel and comprises a cylindrical shell and end covers which are detachably connected to two ends of the shell respectively; the two ends of the shell are provided with external threads, and the end covers are correspondingly provided with matched internal threads to be connected with the shell.
8. The energy consumption device based on the compressive yielding or buckling deformation control as claimed in claim 1, wherein: one end of the push-pull rod, which extends out of the shell, is provided with a hinge so as to be hinged with a wood structure column of the wood frame; the shell body at the end opposite to the push-pull rod is provided with a hinge to be hinged with a wooden ring beam of the wooden frame, so that the wooden frame energy consumption node is formed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120551282.XU CN214784942U (en) | 2021-03-17 | 2021-03-17 | Energy consumption device based on compressive yielding or buckling deformation control |
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| CN202120551282.XU CN214784942U (en) | 2021-03-17 | 2021-03-17 | Energy consumption device based on compressive yielding or buckling deformation control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027211A (en) * | 2021-03-17 | 2021-06-25 | 重庆科技学院 | Energy consumption device based on compressive yielding or buckling deformation control and working method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027211A (en) * | 2021-03-17 | 2021-06-25 | 重庆科技学院 | Energy consumption device based on compressive yielding or buckling deformation control and working method |
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