CN113737978A - Support type damping connecting device and pin frame of frame middle part node - Google Patents
Support type damping connecting device and pin frame of frame middle part node Download PDFInfo
- Publication number
- CN113737978A CN113737978A CN202111107344.9A CN202111107344A CN113737978A CN 113737978 A CN113737978 A CN 113737978A CN 202111107344 A CN202111107344 A CN 202111107344A CN 113737978 A CN113737978 A CN 113737978A
- Authority
- CN
- China
- Prior art keywords
- frame
- node
- damping
- steel
- supporting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000013016 damping Methods 0.000 title claims abstract description 60
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 71
- 239000010959 steel Substances 0.000 claims abstract description 71
- 229920003023 plastic Polymers 0.000 claims description 18
- 239000002131 composite material Substances 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 14
- 239000004568 cement Substances 0.000 claims description 13
- 230000002787 reinforcement Effects 0.000 claims description 13
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 12
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 12
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 10
- 239000004567 concrete Substances 0.000 claims description 9
- 239000011150 reinforced concrete Substances 0.000 claims description 6
- 230000003466 anti-cipated effect Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000005304 joining Methods 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 20
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000006870 function Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
- E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/22—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material with parts being prestressed
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0237—Structural braces with damping devices
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/025—Structures with concrete columns
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model provides a support type damping connecting device of frame middle part node, relates to building frame node technical field, including the node body, the node body is equipped with node steel skeleton, pre-buried steel sheet, prestressing steel bar, damping node board, support type attenuator. A pin frame is characterized in that supporting type damping connecting devices are respectively arranged at nodes of the pin frame, and damping node plates of 2 supporting type damping connecting devices opposite to each other at opposite diagonal positions are connected through supporting type dampers. The invention is suitable for node connection when the support type damper is arranged in the middle of a newly-built RC frame, and enhances the node bearing capacity and the self-recovery capacity after the earthquake in two aspects of improving the opening and closing effect to ensure the efficient utilization of the damper and arranging a novel node structure.
Description
Technical Field
The invention relates to the technical field of building frame nodes, in particular to a supporting type damping connecting device for a middle node of a frame and a pin frame.
Background
The earthquake action is mainly considered in the design of a building structure, and the energy dissipation and shock absorption technology can be applied to buildings except that the self structure resists the horizontal force of the earthquake. With the improvement of the economic development level of China, the earthquake-resistant requirements of a plurality of cities are changed in an improved manner, the earthquake-resistant requirements mean that the earthquake action is more emphasized in the design of a building structure, and the earthquake-resistant requirements play a positive promoting role in the development of energy dissipation and shock absorption technologies.
The energy dissipation and shock absorption technology is mainly characterized in that a damper with a specific structure is arranged, and energy can be dissipated through the change of displacement or speed of the damper under the action of an earthquake, so that the purpose of protecting a main body structure is achieved. The dampers are typically connected to the frame nodes or columns by support rods and node plates to work in conjunction with the frame structure. At the frame beam column and the node connected with the damper, the opening and closing effect can be generated due to the axial force action of the supporting damper on the frame system. The open-close effect is generated according to the following principle:
taking the earthquake action from left to right as an example, the frame beam is subjected to vertical downward shearing force, so that the frame beam generates upward micro deformation in a plane; the frame column is subjected to horizontal leftward shearing force, so that the frame column generates rightward slight deformation in a plane. The deformation of the frame beam column causes the gusset to form a closure effect, producing an additional internal force, see fig. 2 (a). When the earthquake acts from right to left, the node plates form an opening effect, and additional internal force is generated. Under the action of horizontal earthquake, the support nodes are opened and closed due to the lateral displacement of the frame beams and columns, and the opening and closing effect is called by the effect of generating additional internal force.
The effect of opening and shutting can make the node produce great effort under the effect of small deformation, produces deformation, causes adverse effect to the stability of node atress and gusset plate.
In order to solve the technical problem, the prior documents disclose some technical solutions, but the technical solutions all emphasize improvement of a certain function on one side, do not integrate and consider the connection of the damper and the reinforced concrete frame node, and do not design the support type damping connection node in a targeted manner.
For example, in some patent documents, the slip joint connection only considers that the joint plate and the frame beam column are separated by using a flexible material to achieve the purpose of reducing the opening and closing effect, but does not consider the influence of the structural design on the stress state of the frame joint, and the force transmission mechanism is not clear. For another example, in the unconstrained node connection method proposed by Berman, the node plate is only connected with the frame beam and is not connected with the frame column any more, so that the damping support shaft force is borne by the beam completely, the shear yield deformation of the beam end is easily caused, the effect of weakening the bearing capacity of the frame node is caused, and the self earthquake resistance of the building is not favorably exerted.
In addition, each type of node design rarely has a self-repairing function, and most of the materials used by the nodes are commonly used steel materials and concrete materials. The reinforced concrete material has the defect of poor plasticity, so that great difficulty is brought to the repair work of the node after the earthquake.
Disclosure of Invention
The invention provides a supporting type damping connecting device for a middle node of a frame and a pin frame, which are suitable for node connection and pin frame construction when a supporting type damper is arranged in the middle of a newly-built RC frame, and can enhance the node bearing capacity and the self-recovery capacity after an earthquake from two aspects of improving the opening and closing effect to ensure the efficient utilization of the damper and arranging a novel node structure.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a support type damping connecting device of frame middle part node, includes the node body that constitutes by frame post and frame roof beam are crossing, this internal cross node steel skeleton that is equipped with of node, 4 free ends of node steel skeleton extend into about corresponding frame post and the frame roof beam respectively in to move outside the anticipated plasticity hinge area of node body to the place region of free end outside frame post and frame roof beam, the medial extremity in anticipated plasticity hinge area be equipped with pre-buried steel sheet, be connected with the prestressing steel bar that has self-resuming ability between adjacent pre-buried steel sheet between frame post and frame roof beam, node steel skeleton still be connected with the damping gusset plate, the damping gusset plate be connected with support type attenuator.
Preferably, the frame column and the frame beam are both of reinforced concrete structures, and the free end of the joint steel skeleton extends into the reinforcement cages of the frame column and the frame beam and is welded with the reinforcement cages.
Preferably, the joint steel skeleton is composed of I-shaped steel, the joint steel skeleton is perpendicular to each other, the end faces of the adjacent I-shaped steel wing plates form a joint plate connecting area, and the end part of the damping joint plate is welded with the joint plate connecting area.
Preferably, the polyvinyl alcohol fiber reinforced cement-based composite is filled in the node body inside the 4 intended plastic hinge regions and including within the intended plastic hinge regions themselves.
Preferably, the polyvinyl alcohol fiber reinforced cement-based composite material is also embedded with a shape memory alloy.
Preferably, the inner side end of the embedded steel plate is fixedly connected with an embedded part, the embedded part is embedded in the concrete at the corresponding position, the end part of the prestressed steel bar is integrally formed with a connecting plate, and the connecting plate is welded with the outer surface of the embedded steel plate.
Preferably, the ends of the damping gusset plate penetrate through the reinforcement cages of the frame beams and the frame columns at corresponding positions, are welded with the gusset plate connecting area, and form a whole with the gusset body through pouring concrete.
Preferably, the damping gusset plate has 2 link ends, and 2 link ends pass through the steel reinforcement cage of the frame roof beam and the frame post of corresponding position respectively to with gusset plate joining region be close to the one side welding of node steel skeleton free end.
A pin frame is characterized in that supporting type damping connecting devices are respectively arranged at nodes of the pin frame, and damping node plates of 2 supporting type damping connecting devices opposite to each other at opposite diagonal positions are connected through supporting type dampers.
The support type damping connecting device for the middle node of the frame and the pin frame have the advantages that:
(1) a node steel framework made of I-shaped steel is placed at the node of the frame beam column, so that the bearing capacity of the node is improved, the plastic hinge deviates from the central area of the node body, and the safety of the node is guaranteed.
(2) According to the invention, the prestressed steel bar with the self-resetting function can relieve the influence of the opening and closing effect on the stress of the node body, and has the self-repairing function after an earthquake.
(3) The damping joint plate is rigidly connected with the joint steel framework, the bearing capacity of the damping joint plate and the stability of the joint body are improved by utilizing the stability of the joint steel framework, and the bearing capacity of the joint is improved by improving the stress condition of the joint.
(4) The polyvinyl alcohol fiber reinforced cement-based composite material and the shape memory alloy are used in the node body, so that the self-repairing and self-healing function of the cracks at the nodes is guaranteed.
(5) The invention can obviously enhance the structural strength and stability of the truss frame by arranging the supporting type damping connecting device at the node of the truss frame and connecting the damping node plates at the opposite corners through the supporting type dampers.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic block diagram of the present invention in comparison with the prior art (a is the prior art, b is the present invention);
FIG. 3 is a partial structural view of a pre-buried steel plate according to the present invention;
FIG. 4 is a schematic view of the distribution of the plastic hinge area and gusset connection area contemplated by the present invention;
FIG. 5 is a schematic view of a region filled with a polyvinyl alcohol fiber reinforced cement-based composite material according to the present invention;
FIG. 6 is a schematic structural diagram of a truss frame of the present invention;
FIG. 7 is a schematic view of an embodiment of the present invention provided with a shape memory alloy;
1-frame columns; 2-a frame beam; 3-node steel skeleton; 4-damping gusset plate; 5-prestressed steel bars; 6-a reinforcement cage; 7-embedding a steel plate; 8-gusset plate welding part; 9-embedded parts; 10-connecting plate welding position; 11-prospective plastic hinge region; 12-gusset connection region; 13-polyvinyl alcohol fiber reinforced cement-based composite material; 14-a support-type damper; 15-shape memory alloy.
Detailed Description
In the following, embodiments of the present invention are described in detail in a stepwise manner, which is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only used for describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, the present invention is not to be construed as being limited thereto.
In the initial embodiment, a supporting type damping connection device of a middle node of a frame, as shown in figures 1, 3 and 4, comprises a node body formed by intersecting a frame column 1 and a frame beam 2, a cross-shaped joint steel skeleton 3 is arranged in the joint body, 4 free ends of the joint steel skeleton 3 respectively extend into the frame column 1 and the frame beam 2 which are corresponding up, down, left and right, and an expected plastic hinge area 11 of the node body is moved outwards to the area where the frame column 1 and the frame beam 2 are located outside the free end, an embedded steel plate 7 is arranged at the inner side end of the expected plastic hinge area 11, prestressed steel bars 5 with self-recovery capability are connected between the adjacent embedded steel plates 7 between the frame columns 1 and the frame beams 2, the joint steel framework 3 is further connected with a damping joint plate 4, and the damping joint plate 4 is connected with the support type damper 14.
In this embodiment, as shown in fig. 4, the expected plastic hinge region 11 of the node body is moved from the central region of the node to the regions where the frame column 1 and the frame beam 2 are located outside the free end through the node steel frame 3, so as to effectively improve the stress condition of the node and enhance the bearing capacity of the node. Compared with reinforced concrete materials, the joint steel skeleton has higher strength and rigidity, so that the bearing capacity of the joint is improved.
On this basis, the damping gusset 4 is connected to the gusset steel framework 3, so that the fixing position of the damping gusset (i.e., the gusset connection region 12) is separated from the desired plastic hinge region 11. In the traditional node design, the plastic hinge area and the node plate connecting area are located in the same section, so that the area has double functions and is not beneficial to the safety of the node. The invention separates the expected plastic hinge area 11 from the joint plate connecting area 12, realizes the function area decentralization, is beneficial to improving the stress condition of the joint and ensures the safety of the joint.
As shown in fig. 2, the damping support node mentioned in the background art has an opening and closing effect, which may cause the stress condition of the node to be complex and is not favorable for the exertion of the bearing capacity of the frame system. According to the invention, four prestressed steel bars 5 are respectively arranged around the connection of the frame beam column, as shown in fig. 2(b), the prestressed steel bars 5 improve the opening and closing effect by limiting the deformation of the frame beam column, the development range of the opening and closing effect is deviated from the center of the node to the connection position of the steel bars and the frame beam column, and the adverse effects of the opening and closing effect on the node and the supporting damping node plate are greatly limited. When the earthquake comes, the prestressed steel bar 5 is firstly under the action of the tension and compression axial force, so that the steel bar is axially deformed, the node is protected, and the damping is supported. After the earthquake, the prestressed steel bar 5 has a self-recovery function, so that the prestressed steel bar is recovered to a pre-earthquake state, and the frame structure is recovered.
In a further embodiment, as shown in fig. 1, the frame column 1 and the frame beam 2 are both reinforced concrete structures, and the free end of the joint steel skeleton 3 extends into the reinforcement cage of the frame column 1 and the frame beam 2 and is welded with the reinforcement cage.
In a further embodiment, as shown in fig. 1 and 4, the joint steel skeleton 3 is made of i-steel, the end faces of the wing plates of the i-steel perpendicular to and adjacent to each other of the joint steel skeleton 3 form a joint plate connecting area 12, and the end of the damping joint plate 4 is welded to the joint plate connecting area 12.
In a further embodiment, as shown in figures 1, 4, 5, the polyvinyl alcohol fibre reinforced cement based composite material 13 is filled in the node body inside the 4 intended plastic hinge zones 11 and including within the intended plastic hinge zones 11 themselves.
In this embodiment, when cracks are generated in the nodes, due to the bridging effect provided by the fibers of the polyvinyl alcohol fiber reinforced cement-based composite material 13, the opening of each crack is effectively controlled and suppressed, and the randomly distributed fibers can reduce the width of the crack in the concrete, thereby providing sufficient support for the self-healing process of the cement-based material. The novel composite material placing area needs to contain the position where the node is likely to generate plastic deformation and crack, namely, the novel composite material placing area comprises an expected plastic hinge area 11, so that the plastic hinge area and other areas which are easy to crack after earthquake can have self-repairing capacity, and great convenience is brought to the repairing work of the buildings after earthquake.
In a further embodiment, as shown in fig. 1, 4 and 5, the polyvinyl alcohol fiber reinforced cement-based composite material 13 is embedded with a shape memory alloy 15.
In this embodiment, the self-repairing ability of the concrete in the region where cracks are likely to occur is further improved by combining the polyvinyl alcohol fiber reinforced cement-based composite material 13 with the shape memory alloy 15. The shape memory alloy subjected to pre-stretching treatment is pre-embedded into a matrix of the polyvinyl alcohol fiber reinforced cement-based composite material 13, when cracks appear on nodes or the width of the cracks reaches a critical point and cannot be completely repaired through the self-repairing capability of the matrix, the shape memory alloy near the cracks can be subjected to heating treatment, so that the shrinkage deformation of the shape memory alloy can achieve the purpose of closing the cracks or limiting the width of the cracks.
In a further embodiment, as shown in fig. 1 and 3, an embedded part 9 is further fixedly connected to an inner side end of the embedded steel plate 7, the embedded part 9 is embedded in concrete at a corresponding position, a connecting plate is integrally formed at an end of the prestressed steel bar 5, and the connecting plate is welded to an outer surface of the embedded steel plate 7.
In a further embodiment, as shown in fig. 1, the ends of the damping gusset 4 pass through the reinforcement cages of the corresponding frame beams and frame columns, are welded to the gusset connection areas, and are integrated with the gusset body by casting concrete. Compared with the connection mode mentioned in the background technology part, the damping gusset plate 4 can be connected with the gusset body into a whole, so that the structural strength of the gusset body is ensured while the full damping and energy consumption functions are achieved.
In a further embodiment, as shown in fig. 1 and 6, the damping gusset plate 4 has 2 connecting ends, the 2 connecting ends respectively penetrate through the steel reinforcement cages of the frame beam and the frame column at corresponding positions and are welded with one side of the gusset plate connecting area close to the free end of the gusset steel frame 3, the connecting position can disperse the acting force on the central point of the gusset body while improving the stability of the supporting damper 14, and the stability of the gusset body is improved.
In a further embodiment, as shown in fig. 6, a truss frame is provided with support type damping connection devices at the nodes thereof, and damping node plates of 2 diagonally opposite support type damping connection devices are connected by support type dampers 14.
In this embodiment, the structural strength and stability of the truss frame can be significantly enhanced by providing the supporting type damping connection device at the node of the truss frame and connecting the damping node plates at the opposite corners through the supporting type dampers 14.
Claims (9)
1. A support-type damping connecting device for a middle joint of a frame, characterized in that: including crossing the node body that constitutes by frame post and frame roof beam, this internal cross node steel skeleton that is equipped with of node, 4 free ends of node steel skeleton extend into about from top to bottom respectively in frame post and the frame roof beam that corresponds to move outside the anticipated plasticity hinge district of node body to the region of place of free end outside frame post and frame roof beam, the medial extremity in anticipated plasticity hinge district be equipped with pre-buried steel sheet, be connected with the prestressing steel bar that has self-resuming ability between adjacent pre-buried steel sheet between frame post and frame roof beam, node steel skeleton still be connected with the damping gusset plate, the damping gusset plate be connected with support type attenuator.
2. A supporting-type damping connecting device for a middle node of a frame as claimed in claim 1, wherein: the frame column and the frame beam are both of reinforced concrete structures, and the free end of the joint steel skeleton extends into the reinforcement cages of the frame column and the frame beam and is welded with the reinforcement cages.
3. A supporting-type damping connecting device for a middle node of a frame as claimed in claim 2, wherein: the joint steel skeleton is composed of I-shaped steel, the joint steel skeleton is perpendicular to each other, the end faces of the adjacent I-shaped steel wing plates form a joint plate connecting area, and the end portion of the damping joint plate is welded with the joint plate connecting area.
4. A supporting-type damping connecting device for a middle node of a frame as claimed in claim 3, wherein: the joint body inside the 4 intended plastic hinge regions and including the intended plastic hinge regions themselves are filled with polyvinyl alcohol fiber reinforced cement based composite material.
5. A supporting-type damping connecting device for a middle node of a frame as claimed in claim 4, wherein: the polyvinyl alcohol fiber reinforced cement-based composite material is also embedded with shape memory alloy.
6. A supporting-type damping connecting device for a middle node of a frame as claimed in claim 5, wherein: the inner side end of the embedded steel plate is fixedly connected with an embedded part, the embedded part is embedded in concrete at a corresponding position, a connecting plate is integrally formed at the end part of the prestressed steel bar, and the connecting plate is welded with the outer surface of the embedded steel plate.
7. A supporting-type damping connecting device for a middle node of a frame as claimed in claim 6, wherein: the ends of the damping gusset plates penetrate through the frame beams and the reinforcement cages of the frame columns at corresponding positions, are welded with the gusset plate connecting areas, and form a whole with the gusset body through pouring concrete.
8. A supporting-type damping connecting device for a middle node of a frame as claimed in claim 7, wherein: the damping gusset plate has 2 links, 2 links pass the steel reinforcement cage of the frame roof beam and the frame post of corresponding position respectively to with gusset plate joining region be close to the one side welding of node steel skeleton free end.
9. A pin frame characterized by: the supporting type damping connecting devices as claimed in claim 8 are respectively arranged at the nodes of the truss frames, and the damping node plates of the 2 diagonally opposite supporting type damping connecting devices are connected through supporting type dampers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111107344.9A CN113737978B (en) | 2021-09-22 | 2021-09-22 | Support type damping connecting device and pin frame of frame middle part node |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111107344.9A CN113737978B (en) | 2021-09-22 | 2021-09-22 | Support type damping connecting device and pin frame of frame middle part node |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113737978A true CN113737978A (en) | 2021-12-03 |
CN113737978B CN113737978B (en) | 2022-10-18 |
Family
ID=78740230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202111107344.9A Active CN113737978B (en) | 2021-09-22 | 2021-09-22 | Support type damping connecting device and pin frame of frame middle part node |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113737978B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115076288A (en) * | 2022-06-15 | 2022-09-20 | 国机集团科学技术研究院有限公司 | Cradle type damping-adjustable tower secondary radar system operation vibration control technology |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105064502A (en) * | 2015-08-10 | 2015-11-18 | 河海大学 | Recycled concrete beam-column joint for welding flange stiffening reinforcements by using cross-shaped steel plate and construction method |
CN205776864U (en) * | 2016-07-13 | 2016-12-07 | 大连理工大学 | Precast construction node energy-dissipating and shock-absorbing arc antivibrator |
CN106894667A (en) * | 2017-04-20 | 2017-06-27 | 合肥建工集团有限公司 | Energy-dissipation shock-absorbing damp component and its construction method |
CN207484676U (en) * | 2017-11-16 | 2018-06-12 | 四川华泰众城工程设计有限公司 | A kind of buckling restrained brace reinforced concrete frame dry type flexible beam-column connection |
CN108385835A (en) * | 2018-03-14 | 2018-08-10 | 青岛理工大学 | Novel beam column connecting structure of cast-in-place concrete frame is run through to shaped steel |
CN208685815U (en) * | 2018-05-14 | 2019-04-02 | 南京东鼎建筑科技有限公司 | A kind of support prestressing force connecting node of concrete support frame structure |
CN112096115A (en) * | 2020-10-10 | 2020-12-18 | 福州大学 | Reinforcing structure for improving earthquake-proof performance of earthquake-damaged RC frame structure and construction method |
CN112196098A (en) * | 2020-10-22 | 2021-01-08 | 南京林业大学 | Dry-type connection assembly type reinforced concrete frame structure with BRB obliquely and X-shaped arrangement |
-
2021
- 2021-09-22 CN CN202111107344.9A patent/CN113737978B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105064502A (en) * | 2015-08-10 | 2015-11-18 | 河海大学 | Recycled concrete beam-column joint for welding flange stiffening reinforcements by using cross-shaped steel plate and construction method |
CN205776864U (en) * | 2016-07-13 | 2016-12-07 | 大连理工大学 | Precast construction node energy-dissipating and shock-absorbing arc antivibrator |
CN106894667A (en) * | 2017-04-20 | 2017-06-27 | 合肥建工集团有限公司 | Energy-dissipation shock-absorbing damp component and its construction method |
CN207484676U (en) * | 2017-11-16 | 2018-06-12 | 四川华泰众城工程设计有限公司 | A kind of buckling restrained brace reinforced concrete frame dry type flexible beam-column connection |
CN108385835A (en) * | 2018-03-14 | 2018-08-10 | 青岛理工大学 | Novel beam column connecting structure of cast-in-place concrete frame is run through to shaped steel |
CN208685815U (en) * | 2018-05-14 | 2019-04-02 | 南京东鼎建筑科技有限公司 | A kind of support prestressing force connecting node of concrete support frame structure |
CN112096115A (en) * | 2020-10-10 | 2020-12-18 | 福州大学 | Reinforcing structure for improving earthquake-proof performance of earthquake-damaged RC frame structure and construction method |
CN112196098A (en) * | 2020-10-22 | 2021-01-08 | 南京林业大学 | Dry-type connection assembly type reinforced concrete frame structure with BRB obliquely and X-shaped arrangement |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115076288A (en) * | 2022-06-15 | 2022-09-20 | 国机集团科学技术研究院有限公司 | Cradle type damping-adjustable tower secondary radar system operation vibration control technology |
Also Published As
Publication number | Publication date |
---|---|
CN113737978B (en) | 2022-10-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Nie et al. | Technological development and engineering applications of novel steel-concrete composite structures | |
CN103255841B (en) | A kind of assembly concrete post-girder steel overhanging end template nodal connection device | |
CN108755951B (en) | Energy dissipation and shock absorption beam column joint of precast prestressed concrete frame | |
CN112538898A (en) | Self-resetting shearing-constraint buckling damage controllable assembly type beam-column joint | |
CN108729343B (en) | Post-earthquake recoverable assembled energy-consuming column pier structure | |
CN102704595A (en) | Shear wall with 'profile steel column-steel beam-steel support' embedded between steel tube concrete columns and manufacturing method | |
CN1995571A (en) | Built-in steel truss concrete combined huge size beam column frame and its manufacture method | |
CN104674649A (en) | Novel earthquake damage control system for thin-wall hollow pier | |
CN113737978B (en) | Support type damping connecting device and pin frame of frame middle part node | |
CN115653085A (en) | Detachable assembly type concrete frame structure system | |
CN106245820A (en) | It is a kind of that segmentation prestressing force Self-resetting damage concentration is prefabricated waves shear wall | |
CN101424105B (en) | Oblique steel support concrete shear wall composite coupling beams and production method thereof | |
JP3608136B2 (en) | Damping structure of buildings | |
CN102587576B (en) | Combined precast column with nodes | |
CN201411797Y (en) | Miniature energy-dissipation filling device for multi-ribbed composite wall body | |
CN109577492A (en) | A kind of steel sections package concrete column and reinforced beam node connecting structure | |
CN211548196U (en) | Steel plate concrete shear wall with strong edge member | |
CN206053037U (en) | Prestressing force Self-resetting damage concentration is prefabricated waves shear wall for a kind of segmentation | |
CN107476438B (en) | Repairable super high-rise structure and construction method | |
CN216474462U (en) | Swing-self-reset double-layer double-column pier bridge bent frame structure with three energy consumption measures | |
JP2002004463A (en) | Aseismatic frame structure and its designing method | |
CN212716016U (en) | Novel shock attenuation add layer structure | |
CN103790230A (en) | Novel post-earthquake self-reset concrete framework structural system | |
CN114108809A (en) | Prefabricated reinforced concrete column-steel beam cast steel node | |
CN201343782Y (en) | Combined coupling beam for inclined steel bracing strut concrete shear wall |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |