CN217128591U - Disc spring three-dimensional damping and energy dissipation upper node for assembled steel structure external wall panel - Google Patents
Disc spring three-dimensional damping and energy dissipation upper node for assembled steel structure external wall panel Download PDFInfo
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- CN217128591U CN217128591U CN202122510805.9U CN202122510805U CN217128591U CN 217128591 U CN217128591 U CN 217128591U CN 202122510805 U CN202122510805 U CN 202122510805U CN 217128591 U CN217128591 U CN 217128591U
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Abstract
The utility model discloses a disc spring three-dimensional damping and energy-consuming upper node for an assembled steel structure external wallboard, which comprises an external wallboard and an I-shaped steel beam, wherein the external wallboard is connected with the I-shaped steel beam through the node; the node comprises a ribbed angle steel, one limb of the ribbed angle steel is connected with the steel I-beam, the other limb of the ribbed angle steel is connected with the external wall panel through a fastener, and a disc spring group is arranged on the fastener; and an L-shaped cover plate is arranged on one limb of the ribbed angle steel, which is in contact with the I-shaped steel beam. The utility model provides an energy consumption node adopts bolted connection and welded mode, has avoided the grout for the construction progress has practiced thrift the human cost. The utility model provides an energy consumption node, each connecting piece of use all can be dismantled and recycle, has practiced thrift the cost.
Description
Technical Field
The utility model relates to a connection of external wallboard belongs to assembly type building technical field, concretely relates to be used for assembled steel construction external wallboard belleville spring three-dimensional shock attenuation power consumption to go up node.
Background
With the promotion of building industrialization, assembly type buildings are greatly popularized, wherein the assembly type steel structure buildings are more and more widely applied to engineering due to the advantages of light weight, high strength, good earthquake resistance, high construction speed, flexible building space arrangement and the like.
The prefabricated steel structure building outer enclosure wall body is required to be a prefabricated wall plate according to the requirements of the prefabricated building evaluation standard GB/T51129-2017. The connecting node between the prefabricated wall panel and the steel structure main body is the key point and the difficulty of the technical research of the assembled steel structure outer wall. The traditional connection mode often needs wet operation, more field welding or excessively complicated connecting piece installation, and is not favorable for realizing on-site quick assembly.
At present, nodes which are applied more in the market have three categories, namely rigid connection nodes, flexible connection nodes and semi-rigid connection nodes.
The rigid connection node is characterized in that the external wall panel and the main structure are connected into a whole, the external wall panel and the main structure deform under stress together, and the rigid connection node is widely applied in actual engineering to form a set of complete specifications; the integrity is good; concrete is not needed to be cast in situ, construction is fast, and the construction period is shortened. The rigid node has the obvious defects that the connection operation is complicated, and the wallboard and the node form integral common stress, and can generate larger internal force under the action of rare earthquakes to cause cracks and even damage and fall off, so that the flexible node with serious earthquake damage is set into an oblong hole by using the limiting hole, and a bolt can move in the elongated hole, namely the external wallboard and a main structure can have relative displacement (Wangwei, when old, Chenyi, Houyi and Tao. the layered assembly supporting steel frame full-scale vibrating table test research of the external PC composite wallboard [ J ]. architectural structure study, 2019,40(02):92-101.), can not generate larger internal force to damage under the action of rare earthquakes, but the strength and the rigidity of the external wallboard are not fully utilized. The installation difficulty of the long round hole and the plate structure is reduced, and the installation is convenient. The flexible connection has the defects that the strength and the rigidity of the external wall board do not play a role in resisting earthquake, and the material performance is not fully utilized.
The semi-rigid node has the characteristics of good rigidity and ductility and certain shock resistance, and can go through four stages, namely an elastic stage, a cracking stage, a yielding stage and a failure stage in experimental loading. The Qian steel judges whether the classification standard of the semi-rigidity of the node is met or not by observing 3 stages of obvious elasticity, yield and damage of a bending moment-corner skeleton curve of the node, but does not see a real quantitative standard (Cao Yonghong, Qian gang, Li Guo Rong, Cao Hui. research on relation between bending moment and corner of a node of a steel bolt connection assembly type semi-rigid beam column [ J ] construction technology, 2020,49(05): 17-22.). When the external load is smaller than the sliding force of the friction connecting piece, the connecting piece and the wall board can be regarded as rigid connection, and the rigidity of the external wall board can be fully utilized; when the external load is larger than the sliding force of the friction connecting piece, relative sliding occurs between the connecting piece and the wall board, so that the further increase of the load transmitted to the wall board can be limited, and the damage of the wall board is avoided, and at the moment, the flexible connection 'Yangyun, stone fierce' and the design research of the external wall board energy consumption node [ J ]. low-temperature building technology, 2013(03):73-75 ].
The semi-rigid node can exert the rigidity of the material, and can consume earthquake energy by utilizing the energy consumption effect of the node, because the semi-rigid node is still in a research stage at present, the production and the use of components are not popularized, the corresponding quantification limit is lacked, the concept cannot be unified, and a plurality of researchers also propose different rigid nodes in the direction, such as a friction energy consumption connection node, a displacement energy consumption connection node (Wangzhino. shock resistance research of a PC coupled shear wall structure containing the shock absorption external wall panel [ D ]. Combined fertilizer industry university, 2018.), a plate-plate friction energy consumption connection node (Bruno Dal Lango, Fabio Biondini, Giando Toniolo. Friction-based distributed energy consumption for precast concrete columns [ J ]. Engineering Structures,2017,147 ].
The semi-rigid connection node has the advantages of rigid connection and flexible connection, has application value, but can be used in an actual earthquake state with limited reference design, the seismic wave source direction is unknown, the stress direction of the external wall panel system is unknown, and at present, the energy consumption nodes in the existing implementation scheme, most of the novel nodes adopt one-way energy consumption, and the few nodes consider two-way or even three-way energy consumption.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a purpose is to overcome the above-mentioned deficiency of the prior art, provide the belleville spring three-dimensional damping and energy dissipation upper node used for the external wallboard of assembled steel structure; the energy-consuming upper node can achieve the purpose of energy consumption and shock absorption in three directions through the disc spring, the long round hole and the friction cover plate, so that the overall anti-seismic performance of the building is improved, and damage caused by earthquakes are reduced.
The utility model discloses at least, one of following technical scheme realizes.
The disc spring three-dimensional damping and energy dissipation upper node for the assembled steel structure external wall panel comprises an external wall panel and an I-shaped steel beam, wherein the external wall panel is connected with the I-shaped steel beam through the node; the node comprises a ribbed angle steel, one limb of the ribbed angle steel is connected with the I-shaped steel beam, the other limb of the ribbed angle steel is connected with the external wall panel through a fastener, and a belleville spring group is arranged on the fastener; and an L-shaped cover plate is arranged on one limb of the ribbed angle steel, which is in contact with the I-shaped steel beam.
Preferably, the fastener is a bolt; the cover plate, the I-shaped steel beam and the ribbed angle steel are fixed through bolts.
Preferably, a first vertical long circular adjusting and mounting hole is formed in one limb of the ribbed angle steel connected with the external wall panel.
Preferably, the disc spring group corresponds to the first vertical long circular adjusting mounting hole and is arranged facing the ribbed angle steel.
Preferably, the other limb of the ribbed angle steel is connected with an inner wire sleeve 11 in the external wall panel through a bolt.
Preferably, two right circular holes are formed in the middle of the L-shaped cover plate.
Preferably, the short limb of the L-shaped cover plate is in contact with and welded with the I-shaped steel beam, and the long limb is in friction contact with the ribbed angle steel.
Preferably, a first horizontal long circular adjusting mounting hole and a second horizontal long circular adjusting mounting hole are formed in one limb of the ribbed angle steel connected with the I-shaped steel beam.
Preferably, the cover plate, the I-shaped steel beam and the ribbed angle steel are fixed through two bolts, and the two bolts are respectively located on flanges on two sides of a lower flange of the I-shaped steel beam.
Preferably, the L-shaped cover plate is a metal friction plate.
The utility model discloses the purpose provides an assembled outer wall system, including the wallboard structure with as above belleville spring three-dimensional shock attenuation friction power consumption upper node, the inside pre-buried sleeve of externally-hung wallboard, the sleeve level transversely sets up, and passes through bolted connection with ribbed angle steel and belleville spring group.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses an energy consumption node, at the effective shock attenuation power consumption of three direction:
two long circular adjusting mounting holes are formed in the horizontal plane, when an earthquake occurs, the upper node can provide certain displacement buffering, the long limb is in frictional contact with the node by using the L-shaped cover plate, the short limb is welded on the I-shaped steel beam, when the stress is small, the node is represented as a rigid node due to the pretightening force of the bolt and the fixed connection between the cover plate and the I-shaped steel beam, and when the stress is continuously increased to reach a design limit value, the node drives the wall to slide relative to the cover plate and the steel beam, so that the sliding friction of two-side contact is generated;
in the horizontal direction, a disc spring group is added to the joint and the wall plate, and the disc spring has a good energy consumption buffering function;
a vertical long circular adjusting mounting hole is formed in the vertical direction, and vertical displacement buffering can be provided.
The utility model provides an energy consumption node adopts bolted connection and welded mode, has avoided the grout for the construction progress has practiced thrift the human cost.
The utility model provides an energy consumption node, each connecting piece of use all can be dismantled and recycle, has practiced thrift the cost.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a side view of the node according to the present embodiment;
FIG. 2 is a front view of the node according to the present embodiment;
FIG. 3 is a left side view of the ribbed steel angle of the present embodiment;
FIG. 4 is a top view of the node of the present embodiment;
wherein, 1-external wall panel; 2-a steel i-beam; 3-ribbed angle steel; 4-L-shaped friction cover plates; 5-disc spring group; 6-a first horizontal oblong adjustment mounting hole; 7-a second horizontal oblong adjustment mounting hole; 8-a first right circular hole; 9-a second right circular hole; 10-a first vertical oblong adjusting mounting hole; 11-an internal thread sleeve; 111-a first bolt; 112-a second bolt; 113-third bolt.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
For convenience of description, the words "up", "down", "left" and "right" in this disclosure, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate description of the disclosure and simplify description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the disclosure.
As shown in fig. 1, the embodiment is used for an assembled steel structure external wallboard belleville spring three-way damping energy dissipation upper node and an external wall system, and mainly comprises an external wallboard 1, an i-shaped steel beam 2, ribbed angle steel 3, an L-shaped friction cover plate 4 and a belleville spring group 5.
One limb of the ribbed angle steel 3 is arranged between the L-shaped friction cover plate 4 and the I-shaped steel beam 2, and the other limb of the ribbed angle steel 3 is connected with the internal thread sleeve 11 in the external wall board 1 through a third bolt 113. And a disc spring group 5 is arranged on the third bolt 113.
The L-shaped friction cover plate 4, the I-shaped steel beam 2 and the ribbed angle steel 3 are fixed through a first bolt 111 and a second bolt 112.
The first bolt 111 and the second bolt 112 are respectively located on flanges on two sides of a lower flange of the i-steel beam 2.
The L-shaped friction cover plate 4 is welded on the lower flange of the I-shaped steel beam at one end contacted with the I-shaped steel beam 2, and when the wallboard system is stressed to displace, the L-shaped friction cover plate 4 and the I-shaped steel beam 2 are always fixed without dislocation.
As a preferred embodiment, the L-shaped friction cover plate 4 can adopt an L-shaped metal friction sheet.
As a preferred embodiment, one of the two limbs of the ribbed steel angle 3 connected with the i-shaped steel beam 2 is provided with a first horizontal long circular adjusting mounting hole 6 and a second horizontal long circular adjusting mounting hole 7, the L-shaped friction cover plate 4 is provided with a first front circular hole 8 and a second front circular hole 9, the first horizontal long circular adjusting mounting hole 6, the first front circular hole 8 and the front circular hole on the i-shaped steel beam are connected together by a first bolt 111 and fixed by a nut, and the second horizontal long circular adjusting mounting hole 7, the second front circular hole 9 and the front circular hole on the i-shaped steel beam are connected together by a second bolt 112 and fixed by a nut.
As a preferred embodiment, a first vertical long circular adjusting and mounting hole 10 is formed in one limb of the ribbed angle steel 3 connected with the external wall panel 1, and a third bolt 113 penetrates through the first vertical long circular adjusting and mounting hole 10 and the disc spring group 5 to be connected with an internal thread sleeve 11 which is connected with and embedded in the wall panel. The internal thread sleeve 11 is matched with the third bolt 113, the internal thread sleeve 11 is embedded inside the lower layer outer wall-hung plate 1, the internal thread sleeve 11 is transversely arranged, and the center of the internal thread sleeve 11 and the center of the disc spring group 5 are on the same horizontal line.
The connection process of this embodiment is:
when the steel beam is installed, firstly, the L-shaped friction cover plate 4 is added at the lower flange position of the I-shaped steel beam 2, the first horizontal long circular adjusting installation hole 6 and the second horizontal long circular adjusting installation hole 7 on the ribbed angle steel 3 are aligned with the first front round hole 8 on the cover plate, the second front round hole 9 is aligned with the lower flange hole of the I-shaped steel beam 2, and the first bolt 111 and the second bolt 112 are installed and tightened.
And a third bolt 113 penetrates through the first vertical long circular adjusting installation hole 10, then the disc spring group 5 penetrates through the bolt from the other side, and then the bolt 113 is installed on an inner wire sleeve 11 pre-embedded on the outer wall hanging plate.
When an earthquake occurs, the upper node of the utility model can provide certain displacement buffering, the L-shaped friction cover plate 4 is utilized, the long limb is in friction contact with the ribbed angle steel 3, the short limb is welded on the I-shaped steel beam 2, when the stress is small, the rigid node is represented due to the bolt pretightening force and the fixed connection between the L-shaped friction cover plate 4 and the I-shaped steel, when the stress is continuously increased to reach the design limit value, the node drives the wall body to slide relative to the cover plate and the steel beam, and the sliding friction of two-side contact occurs; in the horizontal direction, a disc spring group is added to the joint and the wall plate, and the disc spring has a good energy consumption buffering function; a vertical long circular adjusting mounting hole is formed in the vertical direction, and vertical displacement buffering can be provided.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure. The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A node on being used for assembled steel construction externally-hung wallboard belleville spring three-dimensional shock attenuation power consumption, its characterized in that includes: the wall-mounted wallboard comprises a wall-mounted wallboard (1) and an I-shaped steel beam (2), wherein the wall-mounted wallboard (1) is connected with the I-shaped steel beam (2) through a node; the node comprises ribbed angle steel (3), one limb of the ribbed angle steel (3) is connected with the I-shaped steel beam (2), the other limb of the ribbed angle steel (3) is connected with the external wall panel (1) through a fastener, and a disc spring group (5) is arranged on the fastener; and an L-shaped cover plate (4) is arranged on one limb of the ribbed angle steel (3) which is in contact with the I-shaped steel beam (2).
2. The belleville spring three-way shock-absorbing and energy-dissipating upper node for the assembled steel structure externally-hung wallboard according to claim 1, wherein the fastener is a bolt; the cover plate (4), the I-shaped steel beam (2) and the ribbed angle steel (3) are fixed through bolts.
3. The belleville spring three-way shock-absorbing and energy-dissipating upper node for the assembled steel structure external wall panel according to claim 2, wherein a limb of the ribbed angle steel (3) connected with the external wall panel (1) is provided with a first vertical oblong adjusting and mounting hole (10).
4. The disc spring three-way shock-absorbing and energy-dissipating upper node for the assembled steel structure external wallboard according to claim 3, wherein the disc spring group is arranged facing the ribbed angle steel (3) corresponding to the first vertical long circular adjusting and mounting hole (10).
5. The belleville spring three-way shock-absorbing and energy-dissipating upper node for the assembled steel structure external wall panel according to claim 4, wherein the other limb of the ribbed angle steel (3) is connected with an inner wire sleeve (11) in the external wall panel (1) through a third bolt (113).
6. The disc spring three-way shock-absorbing and energy-dissipating upper node for the assembled steel structure external wall hanging panel according to claim 5, wherein two right circular holes are formed in the middle of the L-shaped cover plate.
7. The belleville spring three-way shock-absorbing and energy-dissipating upper node for the assembled steel structure external wall-hanging panel according to claim 6, wherein the short limb of the L-shaped cover plate is in contact with and welded to the I-shaped steel beam (2), and the long limb is in frictional contact with the ribbed angle steel (3).
8. The belleville spring three-way shock-absorbing and energy-dissipating upper node for the assembled steel structure externally-hung wall plate according to claim 7, wherein one limb of the ribbed steel angle (3) connected with the i-shaped steel beam (2) is provided with a first horizontal oblong adjusting and mounting hole (6) and a second horizontal oblong adjusting and mounting hole (7).
9. The disc spring three-way damping and energy dissipating upper node for the assembled steel structure external wall hanging panel according to claim 8, wherein the cover plate (4), the I-shaped steel beam (2) and the ribbed angle steel (3) are fixed by two bolts, and the two bolts are respectively positioned on flanges at two sides of a lower flange of the I-shaped steel beam (2).
10. The belleville spring three-way damping and energy dissipating upper node for the assembled steel structure external wall panel according to any one of claims 1 to 9, wherein the L-shaped cover plate is a metal friction plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122510805.9U CN217128591U (en) | 2021-10-18 | 2021-10-18 | Disc spring three-dimensional damping and energy dissipation upper node for assembled steel structure external wall panel |
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| CN202122510805.9U CN217128591U (en) | 2021-10-18 | 2021-10-18 | Disc spring three-dimensional damping and energy dissipation upper node for assembled steel structure external wall panel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142597A (en) * | 2022-08-02 | 2022-10-04 | 哈尔滨工业大学 | Integrated cold-bending forming type novel self-adaptive external wallboard energy dissipation connecting node |
| CN115653634A (en) * | 2022-12-05 | 2023-01-31 | 中国矿业大学(北京) | Semi-rigid connecting device for assembled cladding panel |
-
2021
- 2021-10-18 CN CN202122510805.9U patent/CN217128591U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142597A (en) * | 2022-08-02 | 2022-10-04 | 哈尔滨工业大学 | Integrated cold-bending forming type novel self-adaptive external wallboard energy dissipation connecting node |
| CN115142597B (en) * | 2022-08-02 | 2023-04-14 | 哈尔滨工业大学 | Integrated cold-bending forming type novel self-adaptive externally-hung wallboard energy dissipation connecting node |
| CN115653634A (en) * | 2022-12-05 | 2023-01-31 | 中国矿业大学(北京) | Semi-rigid connecting device for assembled cladding panel |
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