CN218911745U - Self-resetting node capable of being prefabricated and self-resetting column base structure - Google Patents
Self-resetting node capable of being prefabricated and self-resetting column base structure Download PDFInfo
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- CN218911745U CN218911745U CN202223229603.8U CN202223229603U CN218911745U CN 218911745 U CN218911745 U CN 218911745U CN 202223229603 U CN202223229603 U CN 202223229603U CN 218911745 U CN218911745 U CN 218911745U
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Abstract
The utility model discloses a prefabricated self-resetting node and a self-resetting column foot structure, which comprise a column mechanism and a concrete beam, wherein a plurality of box block assemblies are fixedly connected to the side surfaces of the column mechanism respectively; the bottom end of the upright post mechanism is fixedly connected with a supporting component. The utility model realizes that the device can be self-reset when the device is greatly deformed, and each part is prefabricated in a split mode, so that the on-site combined assembly can be realized, and the construction efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of civil engineering, in particular to a prefabricated self-resetting node and a self-resetting column foot structure.
Background
The conventional assembly type node realizes more convenient construction, but cannot realize self-resetting and further improves the space in terms of functions. Chinese patent discloses a prefabricated frame beam column assembly type node connecting device (bulletin number: CN 214833401U), which can solve the problem of collision between a longitudinal rib of a prefabricated beam and a longitudinal rib of a prefabricated column in the field hoisting process, but can not realize a self-resetting function when the device is greatly deformed. Meanwhile, chinese patent discloses a self-resetting square concrete filled steel tubular column foot joint (bulletin number: CN 112081305A) with a friction type anchoring device, wherein the anchoring device can realize friction anchoring, and the anchoring mode is consistent with the effect of a completely fixed anchoring mode in the designed side shifting range; when the lateral movement of the structure exceeds the design value, the anchoring device slides, the internal force of the prestressed tendon is kept to be a constant value, the problem that the bearing capacity is suddenly reduced after the prestressed tendon is suddenly broken or is yielded is avoided, and the ductility of the node is obviously improved. However, when the prestressing tendons are exposed outside, under the action of high-strength earthquake, prestressing is easy to break, so that personnel are injured, and meanwhile, the foundation part of the device needs to be poured with a square steel pipe column into a whole, so that the device is not easy to transport and does not meet the requirement of the assembly development at the present stage.
Disclosure of Invention
The utility model aims to provide a self-resetting node capable of being prefabricated and a self-resetting column base structure so as to solve the problems in the prior art.
In order to achieve the above object, the present utility model provides the following solutions:
the utility model provides a but prefabricated self-resetting node and self-resetting column foot structure, includes stand mechanism and concrete beam, stand mechanism side fixedly connected with a plurality of case piece sub-assemblies respectively, case piece sub-assembly one end spiro union has beam steel end, beam steel end with concrete beam one end fixed connection, concrete beam's the other end fixedly connected with beam steel tail end, beam steel tail end runs through there is no bonding prestressing tendons, no bonding prestressing tendons's one end pass through the ground tackle with beam steel tail end anchor, no bonding prestressing tendons's the other end runs through respectively the concrete beam, beam steel end and with case piece sub-assembly detachable connection; the bottom end of the upright post mechanism is fixedly connected with a supporting component.
Preferably, the upright post mechanism comprises an outer steel pipe and an inner steel pipe, wherein the inner wall of the outer steel pipe is fixedly connected with the outer side surface of the inner steel pipe through a plurality of inner reinforcing rib plates, the outer side surface of the outer steel pipe is fixedly connected with a plurality of outer reinforcing rib plates, and the outer reinforcing rib plates are fixedly connected with the box block assembly; and the top surface and the bottom surface of the outer steel pipe are fixedly connected with a column top sealing plate and a column bottom sealing plate respectively. And the bottom surface of the column bottom sealing plate is fixedly connected with the supporting component.
Preferably, the box block assembly comprises a box-shaped connecting block and a plurality of vertical connecting plates, one end of each vertical connecting plate is fixedly connected with one end face of each box-shaped connecting block, and the plurality of vertical connecting plates are arranged at equal intervals; NAO friction plates are fixedly connected between the adjacent vertical connecting plates; the other end of the vertical connecting plate is fixedly connected with the beam steel end head.
Preferably, the support assembly comprises steel box concrete and a base, wherein the bottom surface of the steel box concrete is fixedly connected with the top surface of the base, two anti-slip cushion blocks are fixedly connected to two ends of the top surface of the steel box concrete respectively, and the side surfaces of the two anti-slip cushion blocks and the top surface of the steel box concrete are fixedly connected with the column bottom sealing plate respectively.
Preferably, the column top sealing plate is detachably connected with the steel box concrete through the anchor device and the unbonded prestressed tendons.
Preferably, the inner cavity of the inner steel pipe and the inner cavity of the outer steel pipe are filled with concrete.
Preferably, the base is of a steel box structure.
The utility model has the following technical effects:
according to the utility model, liang Zifu potential energy is provided by arranging the unbonded prestressed tendons on the beams of the prefabricated friction energy-dissipation concrete filled steel tube column-concrete beam self-resetting nodes, part of bending moment action can be born under the action of an earthquake, nondestructive recovery of beam column nodes can be realized under the action of a small earthquake, the beam column nodes are not damaged or slightly damaged under the action of a large earthquake, and the beam column nodes can be continuously put into use after the large earthquake; meanwhile, the self-resetting node is provided with the friction plate, the beam steel end head can generate a corner under the action of an earthquake, the contact surface part is separated from the box-type connecting block, the beam end head and the NAO friction plate generate relative displacement, and the energy consumption capacity of the node is realized by utilizing the contact surface friction between the NAO friction plate and the beam steel end head. The outer reinforcing rib plates are arranged on the outer steel pipes and the box-shaped connecting blocks of the steel pipe concrete column, so that the initial rigidity and strength of the beam column are improved, and certain energy consumption capacity is provided; the inner reinforcement rib plate is arranged between the outer steel tube and the inner steel tube of the steel tube concrete column, so that the force of the outer reinforcement rib plate can be better transferred to the steel tube concrete column, and the phenomenon that the outer steel tube is torn at the outer reinforcement rib plate due to overlarge stress is avoided. In addition, the top surfaces of the steel tube concrete column and the supporting component are tightly attached to each other, and the top cover plate on the bottom surface of the steel tube concrete column and the top surface of the supporting component are aligned with each other to stretch and draw the unbonded prestressed tendons, so that the column foot of the steel tube concrete column can rotate under the action of an earthquake, the earthquake energy can be dissipated, the steel tube concrete column is in an elastic state in the rotation process of the column foot, and plastic deformation and damage in the post-earthquake structure are avoided to the greatest extent. All the components can be manufactured in factories, assembled in sequence after being transported to the site, the installation steps are simple and clear, the requirements on constructors are not high, all the structural components can be quickly disassembled and reinstalled for repair after being damaged, and the development concept of repairable self-resetting structures can be practiced.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic side view of the present utility model;
FIG. 2 is a schematic diagram of a concrete beam and box connection block prior to assembly;
FIG. 3 is a schematic view of a concrete beam assembled with a box connection block;
FIG. 4 is a schematic view of the outer steel tube and the inner and outer reinforcement rib plate installation;
FIG. 5 is a schematic view of the installation of an inner steel pipe;
FIG. 6 is a schematic view of a concrete-filled steel tubular column;
FIG. 7 is a schematic side view of a support assembly;
wherein, 1, a box-shaped connecting block; 2. a vertical connecting plate; 3. beam steel end; 4. a concrete beam; 5. the tail end of the beam steel; 6. a high-strength bolt; 7. the binding-free prestressed tendons are not needed; 8. an anchor; 9. an outer steel pipe; 10. an outer reinforcing rib plate; 11. an inner reinforcing rib; 12. an inner steel pipe; 13. a column bottom sealing plate; 14. a column top sealing plate; 15. an anti-slip cushion block; 16. steel box concrete; 17. and (5) a base.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
The self-resetting joint and self-resetting column foot structure capable of being prefabricated and assembled is shown in figures 1-7, and comprises a column mechanism and a concrete beam 4, wherein a plurality of box block assemblies are fixedly connected to the side surfaces of the column mechanism respectively, one end of each box block assembly is in threaded connection with a beam steel end 3, the beam steel end 3 is fixedly connected with one end of the concrete beam 4, the other end of the concrete beam 4 is fixedly connected with a beam steel tail end 5, the beam steel tail end 5 is penetrated by a bonding-free prestressed rib 7, one end of the bonding-free prestressed rib 7 is anchored with the beam steel tail end 5 through an anchor device 8, and the other end of the bonding-free prestressed rib 7 is penetrated through the concrete beam 4 respectively, and the beam steel end 3 is detachably connected with the box block assemblies; the bottom end of the upright post mechanism is fixedly connected with a supporting component. The column top sealing plate 14 is detachably connected with the steel box concrete 16 through the anchor device 8 and the unbonded prestressed tendons 7. The inner cavity of the inner steel tube 12 and the inner cavity of the outer steel tube 9 are filled with concrete, so that a steel tube concrete column is formed, and the overall strength is improved.
Furthermore, the unbonded prestressed tendons 7 can be buried in advance in a factory without on-site threading, so that a large amount of perforating and threading time is saved. Meanwhile, the column top sealing plate 14 is detachably connected with the prestressed tendon holes formed in the top surface of the steel box concrete 16 through the anchor device 8 and the unbonded prestressed tendons 7, so that the column mechanism and the supporting component form a self-reset steel tube concrete column together, the unbonded prestressed tendons 7 are buried in advance in a factory, on-site penetrating is not needed, and a large amount of perforating and threading time is saved.
Further, the beam steel end 3 is a connecting piece formed by welding a plurality of steel plates and i-plates, which is in the prior art and will not be described herein.
The utility model can provide a self-resetting node of the column mechanism and the concrete beam 4 for prefabrication and assembly of friction energy consumption steel tube coagulation, and solves the problem that the beam generates larger residual deformation under the action of earthquake so as to cause the structural damage; the problems of high field construction difficulty, large workload and low node installation efficiency of the column mechanism and the concrete beam 4 of the steel tube coagulation are solved. The self-resetting steel tube concrete column foot structure capable of being prefabricated is provided, so that obvious plastic deformation of a steel tube concrete column mechanism is avoided when the earthquake action is large; the phenomenon that concrete is crushed and peeled off and the integrity of the structure is damaged, which are possibly generated by overlarge relative rotation at the contact surface between the upright post mechanism and the contact surface between the concrete foundation and the tensioning and anchoring end of the prestressed tendon, is solved.
In a further optimization scheme, the upright post mechanism comprises an outer steel pipe 9 and an inner steel pipe 12, wherein the inner wall of the outer steel pipe 9 is fixedly connected with the outer side surface of the inner steel pipe 12 through a plurality of inner reinforcing rib plates 11, a plurality of outer reinforcing rib plates 10 are fixedly connected with the outer side surface of the outer steel pipe 9, and the outer reinforcing rib plates 10 are fixedly connected with the box block assembly; the top surface and the bottom surface of the outer steel pipe 9 are respectively fixedly connected with a column top sealing plate 14 and a column bottom sealing plate 13. The bottom surface of the column bottom sealing plate 13 is fixedly connected with the supporting component. The box block assembly comprises a box type connecting block 1 and a plurality of vertical connecting plates 2, one ends of the vertical connecting plates 2 are fixedly connected with one end face of the box type connecting block 1, and the vertical connecting plates 2 are arranged at equal intervals; NAO friction plates are fixedly connected between the adjacent vertical connecting plates 2; the other end of the vertical connecting plate 2 is fixedly connected with a beam steel end head 3. The joint energy consumption capability is realized by the friction of the contact surface between the NAO friction plate (asbestos-free organic friction plate) and the beam steel end head 3.
Further, the beam steel end 3 is fixedly connected with the vertical connecting plate 2 through a plurality of high-strength bolts 6, so that the tensile strength of each connecting piece is improved.
Further optimizing scheme, supporting component includes steel tank concrete 16 and base 17, and steel tank concrete 16 bottom surface and base 17 top surface fixed connection, steel tank concrete 16 top surface both ends rigid coupling have anti-skidding cushion 15 respectively, and two anti-skidding cushion 15 side, steel tank concrete 16 top surface are with post bottom seal 13 fixed connection respectively. The base 17 is of a steel box type structure. The steel box concrete 16 can prevent the phenomenon that the concrete is crushed and peeled off and the integrity of the structure is damaged, which are possibly generated by overlarge relative rotation at the contact surface of the tension anchoring end of the unbonded prestressed tendons 7, and simultaneously plays a role in connecting with the upper structure. The concrete foundation can be directly manufactured in a prefabrication factory, the concrete foundation is prevented from being cast in situ, and the construction efficiency is improved. The anti-slip cushion block 15 avoids the phenomenon that the steel tube concrete column is stressed excessively under the action of earthquake and is displaced excessively. The unbonded tendons 7 provide self-resetting capability and can bear part of the bending moment under the action of earthquake.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (7)
1. The utility model provides a but self-resetting node and self-resetting column foot structure of prefabricated assembly, its characterized in that includes stand mechanism and concrete beam (4), stand mechanism side respectively rigid coupling has a plurality of case piece sub-assemblies, case piece sub-assembly one end spiro union has beam steel end (3), beam steel end (3) with concrete beam (4) one end fixed connection, concrete beam (4) other end rigid coupling has beam steel tail end (5), beam steel tail end (5) run through there is no bonding prestressing tendons (7), the one end of no bonding prestressing tendons (7) pass through ground tackle (8) with beam steel tail end (5) anchor, the other end of no bonding prestressing tendons (7) run through respectively concrete beam (4) beam steel end (3) and with case piece sub-assembly detachable connection; the bottom end of the upright post mechanism is fixedly connected with a supporting component.
2. The prefabricated self-resetting node and self-resetting column base structure as defined in claim 1, wherein: the upright post mechanism comprises an outer steel pipe (9) and an inner steel pipe (12), wherein the inner wall of the outer steel pipe (9) is fixedly connected with the outer side surface of the inner steel pipe (12) through a plurality of inner reinforcing rib plates (11), a plurality of outer reinforcing rib plates (10) are fixedly connected with the outer side surface of the outer steel pipe (9), and the outer reinforcing rib plates (10) are fixedly connected with the box block assembly; the top surface and the bottom surface of the outer steel pipe (9) are fixedly connected with a column top sealing plate (14) and a column bottom sealing plate (13) respectively, and the bottom surface of the column bottom sealing plate (13) is fixedly connected with the supporting component.
3. The self-righting node and self-righting toe structure of claim 2, wherein: the box block assembly comprises a box-shaped connecting block (1) and a plurality of vertical connecting plates (2), one ends of the vertical connecting plates (2) are fixedly connected with one end face of the box-shaped connecting block (1), and the vertical connecting plates (2) are arranged at equal intervals; NAO friction plates are fixedly connected between the adjacent vertical connecting plates (2); the other end of the vertical connecting plate (2) is fixedly connected with the beam steel end head (3).
4. The self-righting node and self-righting toe structure of claim 2, wherein: the support assembly comprises steel box concrete (16) and a base (17), wherein the bottom surface of the steel box concrete (16) is fixedly connected with the top surface of the base (17), anti-slip cushion blocks (15) are fixedly connected to two ends of the top surface of the steel box concrete (16) respectively, and the side surfaces of the two anti-slip cushion blocks (15) and the top surface of the steel box concrete (16) are fixedly connected with the column bottom sealing plates (13) respectively.
5. The prefabricated self-resetting node and self-resetting column base structure as defined in claim 4, wherein: and the column top sealing plate (14) is detachably connected with the steel box concrete (16) through the anchorage device (8) and the unbonded prestressed tendons (7).
6. The self-righting node and self-righting toe structure of claim 2, wherein: the inner cavity of the inner steel tube (12) and the inner cavity of the outer steel tube (9) are filled with concrete.
7. The prefabricated self-resetting node and self-resetting column base structure as defined in claim 4, wherein: the base (17) is of a steel box-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223229603.8U CN218911745U (en) | 2022-12-02 | 2022-12-02 | Self-resetting node capable of being prefabricated and self-resetting column base structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223229603.8U CN218911745U (en) | 2022-12-02 | 2022-12-02 | Self-resetting node capable of being prefabricated and self-resetting column base structure |
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| Publication Number | Publication Date |
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| CN218911745U true CN218911745U (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223229603.8U Active CN218911745U (en) | 2022-12-02 | 2022-12-02 | Self-resetting node capable of being prefabricated and self-resetting column base structure |
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| CN (1) | CN218911745U (en) |
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- 2022-12-02 CN CN202223229603.8U patent/CN218911745U/en active Active
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