CN115559417B - A graded energy dissipation assembled beam hinge node - Google Patents
A graded energy dissipation assembled beam hinge node Download PDFInfo
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- CN115559417B CN115559417B CN202211148624.9A CN202211148624A CN115559417B CN 115559417 B CN115559417 B CN 115559417B CN 202211148624 A CN202211148624 A CN 202211148624A CN 115559417 B CN115559417 B CN 115559417B
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- 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
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- 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
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- 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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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- 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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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- 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
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- 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
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- 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
- E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems
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- 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
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- 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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B2001/4192—Connecting devices specially adapted for embedding in concrete or masonry attached to concrete reinforcing elements, e.g. rods or wires
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- 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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B2001/5875—Connections for building structures in general of bar-shaped building elements using exterior clamping plates or shells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
本发明公开了一种分级耗能装配式梁铰节点，包括至少一对第一预埋件和至少一对第二预埋件，且分别沿两个预制梁连接方向分布；每对第一预埋件与每对第二预埋件间隔布置，且两侧端部分别用于连接预制梁；同侧相邻的第一预埋件与第二预埋件之间通过耗能件相连接，第二预埋件设置有限位孔和绞线预留孔，每对第二预埋件之间通过穿入限位孔内的限位销栓及穿入绞线预留孔内的预应力绞线相连接；上述分级耗能结构组合后，相互配合，在正常使用状态下，预应力绞线承担主要受力作用；在遭遇例如地震等偶然荷载或外部荷载增大时，第二预埋件将会与预制梁之间产生相对转角，从而带动耗能件运动，此时，耗能件产生剪切变形耗散地震能量。
The present invention discloses a graded energy-absorbing assembled beam hinge node, comprising at least one pair of first embedded parts and at least one pair of second embedded parts, which are respectively distributed along the connection direction of two prefabricated beams; each pair of first embedded parts is arranged at intervals from each pair of second embedded parts, and the ends on both sides are respectively used to connect the prefabricated beams; the first embedded parts and the second embedded parts adjacent to each other on the same side are connected through energy-absorbing parts, and the second embedded parts are provided with limiting holes and stranded wire reserved holes, and each pair of second embedded parts are connected through limiting pins inserted into the limiting holes and prestressed stranded wires inserted into the stranded wire reserved holes; after the graded energy-absorbing structures are combined, they cooperate with each other, and under normal use, the prestressed stranded wire bears the main force effect; when encountering accidental loads such as earthquakes or increased external loads, the second embedded parts will generate a relative rotation angle with the prefabricated beams, thereby driving the energy-absorbing parts to move, and at this time, the energy-absorbing parts generate shear deformation to dissipate seismic energy.
Description
Technical Field
The invention relates to the technical field of connection of assembled building structures, in particular to a hierarchical energy-consumption assembled beam hinge joint.
Background
At present, the connection mode of the assembled concrete beam node is divided into wet connection and dry connection. The wet connection is to connect all the components into a whole by means of post-pouring concrete, while the dry connection is to connect the prefabricated components into a whole by means of embedded parts, prestress, bolts or welding. No matter which connection mode is adopted, the splicing positions of the beams are all designed to be just connected, and external load acts on the beams by the components, so that the hierarchical energy consumption is not facilitated.
The Chinese patent document with the bulletin number of CN216616218U discloses an open-close type anti-seismic energy-consumption type assembled beam column node which mainly comprises a precast beam column, a beam column node connecting component and a precast beam, and has the defects that steel plates are arranged on four sides of a spliced part of the precast beam, and the hinge mechanism is difficult to realize and cannot be restored after rotation due to the high rigidity of the node.
The Chinese patent document with publication number CN113047429A discloses a rotary friction energy consumption type self-resetting assembled beam column node, which mainly comprises prefabricated columns, unbonded prestressed tendons, prefabricated column sleeve plates and prefabricated Liang Taoban, and has the defects that the prefabricated beam columns are connected by adopting a similar tongue-and-groove structure, and the external sleeve plates bear larger shearing force during normal use, so that a rotary friction mechanism is difficult to realize.
In a word, because the prefabricated component is adopted to splice the prefabricated component in the prior art to form the assembled structure, the overall stability of the cast-in-situ component is difficult to achieve, and in order to solve the problems, the rigidity of the node is generally enhanced in various ways, so that severe damage is not caused under the action of an earthquake. The one-sided enhanced node stiffness not only subjects the area to greater seismic energy, but also increases construction costs to a great extent.
Disclosure of Invention
The invention aims to provide a hierarchical energy consumption assembled beam hinge joint, which solves at least one technical problem in the prior art, optimizes an energy consumption mechanism and increases structural damping through a scheme with hierarchical energy consumption and damping effects, thereby obtaining better application benefits.
The invention provides a hierarchical energy-consumption assembled beam hinge joint which comprises at least one pair of first embedded parts and at least one pair of second embedded parts. Each pair of first embedded parts are distributed along the connecting direction of the two precast beams, and the end parts of the two sides are respectively used for connecting the two precast beams. Each pair of second embedded parts are distributed along the connecting direction of the two precast beams, and the end parts of the two sides are respectively used for connecting the two precast beams.
Each pair of first embedded parts and each pair of second embedded parts are distributed at intervals, and the first embedded parts and the second embedded parts which are adjacent to each other on the same side are connected through energy dissipation parts.
The second embedded parts are provided with limiting holes and stranded wire preformed holes, and each pair of second embedded parts are connected through limiting pins penetrating into the limiting holes and prestressed stranded wires penetrating into the stranded wire preformed holes.
The two side ends of each pair of embedded parts are respectively used for connecting two precast beams, and the two precast beams are generally identical in structure. The tie connection structure of the prestress wire is connected between each pair of second embedded parts to form a primary energy dissipation structure, and the energy dissipation parts are connected between the first embedded parts and the second embedded parts to form the primary energy dissipation structure. The hierarchical energy dissipation structures are combined and matched with each other, the prestress stranded wires bear main stress in a normal use state, when accidental loads such as earthquakes or external loads are increased, relative rotation angles are generated between each pair of second embedded parts by taking the limiting pins as shafts, and relative rotation angles are generated between the second embedded parts and the precast beams, so that the energy dissipation parts are driven to move, at the moment, the energy dissipation parts generate shear deformation to dissipate seismic energy, and the node has reasonable and concise structure, good overall balance stability and low cost. The energy dissipation structure formed by the prestress stranded wires connected between the two second embedded parts can ensure that the two second embedded parts are respectively and firmly connected with the precast beam, ensure the energy dissipation mechanism effect of the node and improve the earthquake-resistant effect.
In order to facilitate the rotation between each pair of second embedded parts, the energy consumption parts are driven to move more smoothly, the earthquake energy is dissipated more effectively, and the shock insulation pads can be arranged on the precast beams.
In order to optimize the balance of the node combination energy consumption structure, the damping effect of the grading energy consumption structure is better, the node strength and reliability are improved, the number of the second embedded parts can be one pair more than that of the first embedded parts, so that one pair of the second embedded parts are distributed on two sides of each pair of the first embedded parts, or the number of the first embedded parts can be one pair more than that of the second embedded parts, and a pair of the first embedded parts are distributed on two sides of each pair of the second embedded parts. That is, the structure that the two sides of the hierarchical energy consumption assembled beam hinge joint are a pair of first embedded parts or the two sides of the hierarchical energy consumption assembled beam hinge joint are a pair of second embedded parts is formed, and the firm stability of the joint connection precast beam is optimized.
Compared with the prior art, the invention has at least the following beneficial effects:
The hierarchical energy-consumption assembled beam hinge joint adopts the dry connection method of the prefabricated beam matched with the prestress stranded wires and the embedded parts in the construction mode, is suitable for the hinge connection of the assembled beam joint, has a plurality of structural members and parts which can be prefabricated in advance, has reasonable integral structure, is convenient for site construction and installation, and can realize the hierarchical energy consumption effect of prestress energy consumption and deformation energy consumption of the energy-consumption parts.
The hierarchical energy consumption assembly type beam hinge joint can optimize an energy consumption mechanism and increase structural damping, avoid the damage of a structure when encountering conditions such as an earthquake, improve the damping effect, reduce the cost and obtain better application benefits.
Drawings
FIG. 1 is a front view of a hierarchical energy consuming fabricated beam hinge according to one embodiment of the present invention;
FIG. 2 is a top view of a hierarchical energy consuming fabricated beam hinge according to one embodiment of the present invention;
FIG. 3 is a left side view of a hierarchical energy consuming fabricated beam hinge according to one embodiment of the present invention;
FIG. 4 is a front view of a second embedment in accordance with an embodiment of the invention;
FIG. 5 is a top view of a second embedment in accordance with an embodiment of the invention;
FIG. 6 is a left side view of a second embedment in accordance with an embodiment of the invention;
FIG. 7 is a front view of a first embedment in accordance with an embodiment of the invention;
FIG. 8 is a top view of a first embedment in accordance with an embodiment of the invention;
FIG. 9 is a left side view of a first embedment in accordance with an embodiment of the invention;
FIG. 10 is a front view of a hierarchical energy consuming fabricated beam hinge according to another embodiment of the present invention;
FIG. 11 is a top view of a hierarchical energy consuming fabricated beam hinge according to another embodiment of the present invention;
FIG. 12 is a left side view of a hierarchical energy consuming fabricated beam hinge according to another embodiment of the present invention;
FIG. 13 is a front view of an energy dissipation device according to an embodiment of the present invention;
FIG. 14 is a top view of an energy dissipation device according to an embodiment of the present invention;
FIG. 15 is a left side view of an energy consuming device according to an embodiment of the present invention;
In the figure, 1 is a precast beam, 2 is a first embedded part, 4 is a T-shaped plate, 401 is a web plate, 402 is a wing plate, 5 is a notch plate, 6 is an arc plate, 7 is an energy consumption part, 701 is a hole, 8 is a limiting hole, 9 is a limiting pin, 10 is a stiffening rib, 11 is a stranded wire reserved hole, 12 is a prestress stranded wire, 13 is an anchor, 14 is an elastic gasket, 15 is a shock insulation pad, and 16 is an anchor.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
Referring to fig. 1 to 3, a hierarchical energy consumption assembled beam hinge joint comprises at least one pair of first embedded parts 2 and at least one pair of second embedded parts, wherein each pair of first embedded parts 2 is distributed along the connecting direction of two precast beams 1, two side end parts are respectively used for connecting the two precast beams 1, each pair of second embedded parts are distributed along the connecting direction of the two precast beams 1, two side end parts are respectively used for connecting the two precast beams 1, each pair of first embedded parts 2 and each pair of second embedded parts are distributed at intervals, the first embedded parts 2 and the second embedded parts adjacent to the same side are connected through energy consumption parts 7, the second embedded parts are provided with limiting holes 8 and stranded wire preformed holes 11, and each pair of second embedded parts are connected through limiting pin bolts 9 penetrating into the limiting holes 8 and prestressed stranded wires 12 penetrating into the stranded wire preformed holes 11.
When two precast beams 1 are connected through the hierarchical energy consumption assembly type beam hinge joint, two precast beams 1 are respectively connected with two side ends of each pair of first embedded parts 2 and each pair of second embedded parts. The pulling connection structure of the prestress wire 12 forms a primary energy dissipation structure, and the energy dissipation piece 7 connected between the first embedded piece 2 and the second embedded piece forms a primary energy dissipation structure. The hierarchical energy consumption assembled beam hinge joint is matched with each other through the hierarchical energy consumption combined structure, the prestress stranded wire 12 is tensioned in the stranded wire reserved hole 11 to exert prestress in a normal use state, the prestress stranded wire 12 bears main stress, when accidental loads such as an earthquake or external loads are increased, the second embedded part and the precast beam 1 generate relative rotation angles, so that the energy consumption part 7 is driven to move, and at the moment, the energy consumption part 7 generates shear deformation to dissipate earthquake energy, and the energy consumption and shock absorption effects are realized.
Referring to fig. 1, the precast beam 1 may be provided with a shock insulation pad 15, so as to facilitate rotation between each pair of second embedded parts, and more smoothly drive the energy dissipation parts 7 to move, and more effectively dissipate seismic energy. The shock insulation pad 15 may be a rubber shock insulation pad, which may be attached to the precast beam 1 by gluing.
Referring to fig. 4 to 6, the second embedment may be a sleeve, and in particular may be a steel sleeve.
In order to form a sleeve structure, the second embedded part can comprise a T-shaped plate 4, a notch plate 5 and an arc plate 6, wherein the T-shaped plate 4 comprises a transverse web 401 and a vertical wing plate 402, a wire reserved hole 11 is formed in the wing plate 402, the notch plate 5 is connected with the wing plate 402, the first embedded part 2 is connected with the notch plate 5 through an energy dissipation part 7, the arc plate 6 is at least connected with one of the wing plate 402 and the notch plate 5, and a limiting hole 8 is formed in the arc plate 6.
Referring to fig. 1, the end of the web 401 of the t-shaped panel 4 may be connected to the precast beam 1 by an anchor 16.
Referring to fig. 4, the arc plate 6 is connected with at least one of the wing plate 402 and the notch plate 5, and the limiting hole 8 is formed in the arc plate 6, and the arc plate 6 may be a vertical steel plate. For example, the upper side of the arc plate 6 may be connected to the upper notch plate 5, one side adjacent to the precast beam 1 may be connected to the wing plate 402, and the other side may be a convex arc side. The limiting aperture 8 may be curved in an arc to match the arc deformation range of the articulation joint. The arc-shaped curved limit hole 8 may be provided at the arc-shaped side edge of the arc-shaped plate 6. All the connecting parts can be welded. The arc-shaped curved shape of the limiting hole 8 can be parallel to the arc-shaped side edge of the arc-shaped plate.
The web 401 may be parallel to the notch plate 5, both may be perpendicular to the wing plate 402, the arcuate plate 6, and the wing plate 402 may be perpendicular to the arcuate plate 6.
Referring to fig. 1 and 4, the pocket plate 5 may be provided with a recessed pocket in which the end of the energy consuming part 7 is inserted and coupled.
Referring to fig. 7 to 9, the first embedment 2 may be an embedment plate, which may be an embedment steel plate, such as a transverse rectangular steel plate. The end of the pre-buried plate can be pre-buried connected to the precast beam 1 by an anchor 16. The embedded plate can be provided with a groove, the depth direction of the groove is consistent with the thickness direction of the embedded plate, and the end part of the energy dissipation part 7 is inserted and connected in the groove.
The number of the first embedded parts 2 can be one pair more than that of the second embedded parts, and a pair of first embedded parts 2 are distributed on two sides of each pair of second embedded parts;
Or referring to fig. 10 to 12, the number of the second embedded parts can be one pair more than that of the first embedded parts 2, and a pair of second embedded parts are distributed on two sides of each pair of first embedded parts 2, so that the balance of the node combination energy consumption structure is optimized, the damping effect of the grading energy consumption structure is better, the node strength and reliability are improved, and the damping effect is further ensured.
Referring to fig. 10, each pair of first embedments 2 and each pair of second embedments may be uniformly spaced apart. The whole structure of the connecting node between the two precast beams 1 is more symmetrical and balanced, and the firmness and the stability are improved.
The shock insulation pads 15 may be disposed on both sides of the web 401, respectively, i.e., the two sides of the web 401 may be provided with the shock insulation pads 15, respectively, and the shock insulation pads 15 on the two sides may be symmetrical with the web 401. The side of the seismic isolation pad 15 may contact the side of the web 401. One end face of the side face of the shock insulation cushion 15 is connected with the precast beam 1, and the other end face can contact with the end face of the notch plate 5.
The number of the notch plates 5 is equal to that of the corresponding notches and grooves on the first embedded part 2, and the notch plates can be respectively multiple and uniformly distributed. The number of the energy dissipation members 7 connected between the notch plate 5 and the notch and the groove on the corresponding first embedded member 2 is also a plurality of, and the plurality of energy dissipation members 7 are also uniformly distributed.
Referring to fig. 13 to 15, the energy dissipation element 7 may be provided with one or more holes 701, which facilitate the deformation during the displacement, so as to better dissipate the seismic energy. The holes 701 may be regular, such as circular, or irregular, and preferably have curved sides.
The energy consuming members 7 may be energy consuming plates, for example energy consuming steel plates, which may be vertical rectangular steel plates or plates. The notch may be a rectangular recess. The energy dissipation plate may be perpendicular to the pre-buried plate, notch plate 5, and may be parallel to the wing plate 402.
Referring to fig. 10, the prestressed strands 12 may be fixed to the wing plate 402 by connecting the anchors 13, and an elastic washer 14 may be disposed between the anchors 13 and the wing plate 402.
For example, the end of the prestressed strand 12 passes through the strand reserved hole 11 and then is connected with the anchor 13, so as to fix the wing plate 402. The anchor 13 is located at the side of the wing plate 402 adjacent to the precast beam 1. An elastic washer 14 is provided between the anchor 13 and the wing plate 402 to avoid local damage. The elastic washer 14 may be an annular rubber washer that is sleeved outside the prestressed strand 12.
At least four stranded wire reserved holes 11 uniformly distributed along the same circumference are formed in each wing plate 402, and the circumference takes the center of the wing plate 402 as the center of a circle. The prestressed strands 12 may be steel strands.
Referring to fig. 10, a stiffener 10 may be attached to the wing 402. The stiffening ribs 10 may be attached to the adjacent sides of the two wings 402 of each pair of second embedments. The stiffener 10 may be an angle stiffener. The number of stiffeners 10 may be at least two and evenly distributed welded to the sides of the wing plate 402.
In order to enhance the connection structure of the stiffener 10, the stiffener 10 may be connected to the adjacent arc plate 6 or notch plate 5 at the same time. For example, stiffening ribs 10 are connected between the middle of the wing plate 402 and the middle of the arcuate plate 6. Stiffening ribs 10 are connected between the sides of the wing plate 402 and the sides of the notch plate 5.
The working principle of the hierarchical energy-consumption assembled beam hinge joint is that the hierarchical energy-consumption assembled beam hinge joint is mainly stressed by a prestress wire 12 in a normal use state, the prestress wire 12 can be a steel wire, when accidental load or external load is increased, the prestress wire 12 generates prestress damage and deforms at a connecting splicing position of two precast beams 1, at the moment, the external deformation causes downward displacement of a steel sleeve of a second embedded part, the displacement is performed along the direction of a limiting hole 8, the limiting pin 9 plays a limiting role, so that the hinged connection of the precast beams 1 is realized, a rubber shock insulation pad is arranged between the steel sleeve and the precast beams 1, the relative rotation angle between the steel sleeve and the precast beams 1 is ensured, meanwhile, the local damage of the steel sleeve to concrete generated at the connecting end of the precast beams 1 is avoided, the embedded steel plate of a first embedded part 2 and the precast beams 1 are kept relatively static, the steel sleeve of the second embedded part and the precast beams 1 generate relative rotation angle, and accordingly the energy-consumption steel plate of the second embedded part 7 is driven to perform shearing movement, and the energy-consumption steel plate of the energy-consumption part is dissipated, and the energy-consumption steel plate is more beneficial to the side edge energy dissipation of the arc-shaped hole.
The energy dissipation effect of the hierarchical energy consumption assembled beam hinge point of the embodiment is mainly divided into two stages:
In the first stage, in a normal use state, external force is balanced by the prestress wire 12;
In the second stage, as the external load increases, shearing deformation is generated by the energy-dissipating steel sheet of the energy-dissipating member 7, so that metal energy dissipation is realized, and meanwhile, the prestress stranded wire 12 bears a part of load.
The rubber shock insulation pad can play a role in isolating horizontal earthquake, and an effective corner is generated between the steel sleeve and the precast beam 1, so that the earthquake energy is converted into the shear deformation of the energy-consumption steel plate.
By the analysis of stress angles, the hierarchical energy consumption assembled beam hinge joint of the embodiment is used as a hinge joint for assembling the end of the precast beam 1, so that the calculated bending moment under the same load working condition can be greatly reduced, the damage of the connecting and splicing positions of the precast beam 1 is avoided, the force transmission mechanism is optimized, and the capacity of the part which cannot be dissipated is in turn balanced in a hierarchical manner by the prestress stranded wires 12 and the energy consumption piece 7.
The cooperation of spacing cotter 9 and spacing hole 8 is used for the deformation of precast beam 1 concatenation department is in the preset position, has realized that external input energy changes metal deformation energy, has guaranteed that the pre-buried steel sheet of second built-in fitting steel sleeve and first built-in fitting 2 is not damaged.
After the deformation is finished, engineering personnel can replace the energy-consumption steel sheet of the energy-consumption piece 7 and re-stretch the prestressed stranded wire 12, so that the hierarchical energy-consumption assembled beam hinge joint is recovered to be used as the hierarchical energy-consumption performance of the assembled beam hinge joint.
The prestress is applied to the wing plate 402 of the T-shaped plate 4, and as an anchoring end, prestress loss generated by local damage of concrete in the tensioning process can be well avoided, and the prestress application mode is superior to that of the traditional pretensioning method and post-tensioning method. The prestressed strands 12 can effectively resist the action of horizontal lateral force, so that the hierarchical energy-consumption assembled beam hinge joint has self-resetting capability.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A hierarchical energy consuming fabricated beam hinge joint, comprising:
At least one pair of first embedded parts, wherein each pair of first embedded parts are distributed along the connecting direction of two precast beams, and the end parts of the two sides are respectively used for connecting the two precast beams;
at least one pair of second embedded parts, wherein each pair of second embedded parts are distributed along the connecting direction of two precast beams, and the end parts of the two sides are respectively used for connecting the two precast beams;
each pair of first embedded parts and each pair of second embedded parts are distributed at intervals, and the first embedded parts and the second embedded parts which are adjacent to each other on the same side are connected through energy dissipation parts;
The second embedded parts are provided with limiting holes and stranded wire reserved holes, and each pair of second embedded parts are connected through limiting pin bolts penetrating into the limiting holes and prestress stranded wires penetrating into the stranded wire reserved holes.
2. The hierarchical energy consuming fabricated beam hinge according to claim 1, wherein shock insulation pads are provided on the precast beams.
3. The hierarchical energy-consuming fabricated beam-hinge joint according to claim 1 or 2, wherein the number of second embedded parts is one pair more than the number of first embedded parts, and a pair of second embedded parts are distributed on both sides of each pair of first embedded parts.
4. The hierarchical energy-consuming fabricated beam-hinge joint according to claim 1 or 2, wherein the number of first embedded parts is one pair more than the number of second embedded parts, and a pair of first embedded parts is distributed on both sides of each pair of second embedded parts.
5. The hierarchical energy consumption assembled beam hinge joint according to claim 1 or 2, wherein the second embedded part comprises a T-shaped plate, a notch plate and an arc-shaped plate, the T-shaped plate comprises a transverse web plate and a vertical wing plate, the reserved twisted wire holes are formed in the wing plate, the notch plate is connected with the wing plate, the first embedded part is connected with the notch plate through the energy consumption part, the arc-shaped plate is at least connected with one of the wing plate and the notch plate, and the limit Kong Kaishe is arranged on the arc-shaped plate.
6. The hierarchical energy consuming fabricated beam hinge according to claim 5, wherein the slotted plate is provided with a recessed slot into which the energy consuming member end is inserted and connected.
7. The hierarchical energy consuming fabricated beam-hinge joint of claim 5, wherein the pre-stressed strand is secured to the wing plate by a connecting anchor, and wherein an elastic gasket is disposed between the anchor and the wing plate.
8. The hierarchical energy-consuming fabricated beam-hinge joint according to claim 5, wherein each wing plate is provided with at least four reserved holes of stranded wires uniformly distributed along the same circumference, and the circumference takes the center of the wing plate as the center of a circle.
9. The hierarchical energy consuming fabricated beam hinge joint of claim 5, wherein the wing panels are connected with stiffening ribs.
10. The hierarchical energy consuming fabricated beam hinge according to claim 5, wherein the limiting aperture is curved.
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| CN202211148624.9A CN115559417B (en) | 2022-09-21 | 2022-09-21 | A graded energy dissipation assembled beam hinge node |
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| CN202211148624.9A CN115559417B (en) | 2022-09-21 | 2022-09-21 | A graded energy dissipation assembled beam hinge node |
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| CN115559417B true CN115559417B (en) | 2025-05-06 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554337A (en) * | 2020-12-19 | 2021-03-26 | 兰州理工大学 | Self-reset type rigidity self-adaptive control assembly type beam-column node |
| CN114482272A (en) * | 2021-12-20 | 2022-05-13 | 青岛腾远设计事务所有限公司 | Energy-consuming and shock-absorbing assembly type beam column node |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101858493B1 (en) * | 2016-09-02 | 2018-05-16 | 박상태 | Hinge Junction Coupling Beam Type Steel Finger Damper |
| CN206888245U (en) * | 2017-05-10 | 2018-01-16 | 长安大学 | A kind of Self-resetting bean column node added with mild steel damper |
| CN112196122B (en) * | 2020-09-27 | 2021-09-07 | 青岛理工大学 | Bamboo type energy-consuming concrete-filled steel tubular joint and installation method |
| CN216948755U (en) * | 2021-12-13 | 2022-07-12 | 上海市建筑科学研究院有限公司 | Self-resetting connecting device for engineering bamboo beam column |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554337A (en) * | 2020-12-19 | 2021-03-26 | 兰州理工大学 | Self-reset type rigidity self-adaptive control assembly type beam-column node |
| CN114482272A (en) * | 2021-12-20 | 2022-05-13 | 青岛腾远设计事务所有限公司 | Energy-consuming and shock-absorbing assembly type beam column node |
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