CN108978866B - Beam-column connection node - Google Patents
Beam-column connection node Download PDFInfo
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- CN108978866B CN108978866B CN201810922344.6A CN201810922344A CN108978866B CN 108978866 B CN108978866 B CN 108978866B CN 201810922344 A CN201810922344 A CN 201810922344A CN 108978866 B CN108978866 B CN 108978866B
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- 238000005265 energy consumption Methods 0.000 claims abstract description 18
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 238000005452 bending Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000003313 weakening effect Effects 0.000 claims 3
- 238000010276 construction Methods 0.000 abstract description 14
- 238000009434 installation Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 15
- 239000010959 steel Substances 0.000 description 15
- 238000003466 welding Methods 0.000 description 10
- 238000010008 shearing Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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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
- E04H9/024—Structures with steel columns and beams
-
- 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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
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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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2418—Details of bolting
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention provides a beam column connecting node which comprises a first connecting plate, a second connecting plate, a pin shaft and at least two energy consumption members, wherein the first connecting plate is connected to the side face of a prefabricated column, the second connecting plate is connected to the end face of the prefabricated beam, the first connecting plate and the second connecting plate are connected through the pin shaft, the two sides of the first connecting plate are respectively provided with the energy consumption members, the two ends of the energy consumption members are respectively hinged with the prefabricated column and the prefabricated beam, the two ends of the energy consumption members are provided with the connecting columns, the prefabricated column and the prefabricated beam are respectively provided with the connecting seats, the connecting seats are provided with through holes penetrating the two ends of the connecting seats, the side wall of each connecting seat is provided with a connecting port, the connecting ports extend along the axial direction of each connecting seat and are communicated with the through holes, the connecting columns are inserted in the through holes, the connecting columns keep elasticity during an earthquake to reduce serious loss of the structure, the multistage fortification is realized, the connection is convenient, the quick and efficient installation on a construction site is convenient to maintain after the earthquake.
Description
Technical Field
The invention relates to the field of constructional engineering, in particular to a beam-column connecting node.
Background
With the entering of China into the key stage of economic structure transformation and upgrading, the development of assembly type buildings is determined as an important measure for advancing supply side structural innovation and novel urbanization development during the period of thirteen-five of China. The assembled steel structure building is used as a high-performance building structure with environmental protection and high material strength, is a building structure commonly adopted by high-rise buildings in developed countries in the world, and is a structural system which is most widely applied in assembled steel structure buildings. However, past jolts have shown that whether fabricated steel frame structures have sufficient bending resistance is critical to protecting the security of the lives and properties of the people. The manner in which the steel-frame columns are connected to the steel-frame beams is a key to determine whether the fabricated steel frame has bending resistance.
The connection manner of the steel-frame column and the steel-frame beam is divided into two kinds in terms of mechanical properties: fixedly connecting and hinging. In order to enable the fabricated steel frame structure to have bending resistance against earthquake action, the current fabricated steel frame structure adopts a connecting mode that steel frame columns are fixedly connected with steel frame beams. The connection scheme for realizing the fixation is of 3 types: welding, pure bolting and bolting. Welding means that the flange of the steel frame beam, the web plate and the flange of the steel frame column are welded into a whole by adopting an electric welding technology, so that the fixation is realized. Pure bolting refers to the use of a large number of bolts to join a steel-frame beam to a steel-frame column as a whole, thereby achieving a solid joint. The bolt welding connection refers to a technical scheme that the joint connection part of the steel frame beam and the steel frame column is welded, and the joint connection part is connected by bolts so as to realize the fixedly connection.
The technical means adopted by the fixedly-connecting scheme are slightly different, but all the technical means realize that the assembled steel frame has certain bending resistance. But the common defects are high requirements on processing and construction precision, complicated site construction procedures and high post-earthquake reinforcement cost. Such as: the welding technical scheme needs to carry out a large number of welding operations on site, so that the construction method is labor-consuming and time-consuming, has high construction requirements, is very easy to be the weakest part of the whole steel frame structure if the quality of the welding seam is low, and has the phenomenon of a large number of welding seam damages in the earthquake of the myth and the earthquake of the north-th; the pure bolt connection has extremely high requirements on the machining precision and the construction precision of the steel member, and the phenomenon that the bolt hole is misplaced and cannot be screwed on the construction site frequently occurs, so that workers enlarge the bolt hole on the construction site and forcibly screw the bolt, the construction process is increased, and the extremely large potential safety hazard is left.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the prefabricated component connecting node which is convenient to connect and has strong bending resistance.
In order to solve the technical problems, the beam column connecting node comprises a first connecting plate, a second connecting plate, a pin shaft and at least two energy consumption pieces, wherein the first connecting plate is connected to the side face of a prefabricated column, the second connecting plate is connected to the end face of the prefabricated beam, the first connecting plate and the second connecting plate are connected through the pin shaft, the two sides of the first connecting plate are respectively provided with the energy consumption pieces, the two ends of the energy consumption pieces are respectively hinged with the prefabricated column and the prefabricated beam, the two ends of the energy consumption pieces are provided with connecting columns, the prefabricated column and the prefabricated beam are respectively provided with connecting seats, through holes penetrating through the two ends of the connecting seats are formed in the connecting seats, connecting ports are formed in the side walls of the connecting seats, extend along the axial direction of the connecting seats and are communicated with the through holes, and the connecting columns are spliced in the through holes.
Further, a first connecting hole is formed in the first connecting plate, a second connecting hole is formed in the second connecting plate, and the shape and the size of the first connecting hole are the same as those of the second connecting hole.
Further, the pin shaft comprises a central body and a clamping body, the central body is provided with a groove matched with the clamping body, the height of the clamping body is larger than the depth of the groove, the pin shaft penetrates through the first connecting hole and the second connecting hole, and the clamping body is tangent to the inner wall of the first connecting hole and the inner wall of the second connecting hole.
Optionally, the center of the connecting port is located on the axis of the through hole, the center angle of the connecting port is 5-170 degrees, and the connecting port is located in the middle of the through hole.
Further, the energy dissipation member comprises a core plate, a first outer sleeve, a second outer sleeve and an unbonded material layer, the connecting columns are arranged at two ends of the core plate, the first outer sleeve and the second outer sleeve are connected through bolts to form a hollow sleeve, the first outer sleeve and the second outer sleeve are sleeved at the middle part of the core plate, and the unbonded material layer is arranged between the core plate and the first outer sleeve and between the core plate and the second outer sleeve.
Optionally, the core plate is provided with a reinforcing rib.
Further, the cross-sectional area of the middle portion of the core plate is smaller than the cross-sectional area of both sides of the core plate.
Optionally, both sides of the middle portion of the core plate are concave.
Further, the length of the inner recess of the core plate is smaller than the lengths of the first outer sleeve and the second outer sleeve.
Optionally, the first overcoat with the second overcoat is L template, first overcoat include first riser and with first diaphragm that first riser is connected perpendicularly, the second overcoat include the second riser and with the second diaphragm that the second riser is connected perpendicularly, first riser with the second diaphragm passes through bolted connection, the second riser with first diaphragm passes through bolted connection.
The beneficial effects of the invention are as follows:
1. the full-hinged connection scheme of the invention is not only greatly convenient for on-site construction operation, does not need to use bolts or welding, but also realizes the bending resistance effect similar to that of fixed connection, the prefabricated column and the prefabricated beam are connected through the pin shafts, shearing force can be transmitted, the energy dissipation piece is arranged to bear bending moment, the full-hinged connection scheme has good energy dissipation capability, elasticity can be kept during an earthquake so as to reduce the probability of serious loss of the structure, the energy dissipation piece is hinged with the prefabricated beam and the prefabricated column, a certain rotation angle is provided, the capability of bearing shearing force of a node is further improved, multi-stage fortification is realized, the elasticity of the beam column is kept under the earthquake effect, meanwhile, the energy dissipation piece is spliced with the connecting seat through the connecting column, when each prefabricated member is assembled, the prefabricated member can be assembled only by inserting the pin shafts into the first connecting plate and the second connecting plate and splicing the two ends of the energy dissipation piece into the connecting seat, the hidden danger caused by bolt hole processing error is not required to be installed, the connection is convenient, the full-hinged connection can be installed quickly and efficiently on the construction site, and maintenance is convenient after the earthquake.
2. The pin shaft is formed by placing the clamping body in the groove of the central body, so that the installation is convenient, and the clamping body can be tangent with the inner wall of the connecting hole, so that the stable connection is ensured. The opening angle of the connecting port is 5-90 degrees, so that the energy consumption piece can rotate at a certain angle, but the rotation angle is not large, and the connection stability is ensured. The non-binding material is arranged in the energy dissipation piece, so that tangential constraint of the outer sleeve on the core plate can be greatly reduced, the core plate is ensured to have a stable working state, and the energy dissipation capacity of the energy dissipation piece is further improved.
Drawings
Fig. 1 is an exploded view of a beam-column connection node of an embodiment.
Fig. 2 is a schematic connection diagram of a pin according to an embodiment.
Fig. 3 is an exploded view of the pin of the embodiment.
Fig. 4 is a schematic diagram of the energy consuming part connection.
Fig. 5 is a schematic diagram of an energy dissipation device according to an embodiment.
Fig. 6 is an exploded view of the energy consuming member.
1, prefabricating a column; 2. prefabricating a beam; 3. a pin shaft; 301. a central body; 3011. a second groove; 302. a clamping body; 4. an energy consumption piece; 401. a connecting column; 402. a core plate; 403. a first jacket; 404. a second jacket; 405. a layer of non-binding material; 406. reinforcing ribs; 407. a third groove; 5. a first connection plate; 501. a first connection hole; 502. a first groove; 6. a second connecting plate; 601. a second connection hole; 7. a connecting seat; 701. a through hole; 702. a connection port; 8. a bolt; 9. reinforcing plate.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
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.
Referring to fig. 1 to 6, the beam column connection node of the present embodiment includes a first connection plate 5, a second connection plate 6, a pin shaft 3 and at least two energy dissipation members 4, the first connection plate 5 is connected to a side surface of the precast column 1, the second connection plate 6 is connected to an end surface of the precast beam 2, and reinforcing plates 9 are provided on the precast column 1 and the precast beam 2 of the present embodiment in the vicinity of the node connection to increase the strength of the node connection. The prefabricated column 1 is provided with a first connecting plate 5 on the side face, the prefabricated beam 2 is provided with a second connecting plate 6 on the end face, the first connecting plate 5 and the second connecting plate 6 are connected through a pin shaft 3, the first connecting plate 5 is respectively provided with energy dissipation pieces 4, it should be noted that the energy dissipation pieces 4 on two sides can be arranged in a plurality, the quantity of the two sides is not necessarily equal, two ends of the energy dissipation pieces 4 are respectively hinged with the prefabricated column 1 and the prefabricated beam 2, two ends of the energy dissipation pieces 4 are provided with connecting columns 401, the prefabricated column 1 and the prefabricated beam 2 are respectively provided with connecting seats 7, the connecting seats 7 are provided with through holes 701 penetrating through the two ends of the connecting seats 7, connecting ports 702 are arranged on the side walls of the connecting seats 7, the connecting ports 702 extend along the axial direction of the connecting seats 7 and are communicated with the through holes 701, the connecting columns 401 are spliced in the through holes 701, and the connecting columns 401 can be tube bodies. In this embodiment, the energy dissipation element 4 is vertically connected with the precast column 1 and the precast beam 2, the first connecting plate 5 is vertically connected with the precast column 1, the second connecting plate 6 is vertically connected with the precast beam 2, and the energy dissipation element 4, the first connecting plate 5 and the second connecting plate 6 are all parallel to the horizontal plane. The beam column connecting node of the embodiment adopts a full-hinged connection scheme, so that the on-site construction operation is greatly facilitated, bolts or welding is not needed, the same bending resistance effect as that of fixedly connected connection is realized, the precast column 1 and the precast beam 2 are connected through the pin shaft 3, shearing force can be transmitted, the energy dissipation piece 4 is arranged, the bending moment can be born, the energy dissipation piece 4 has good energy dissipation capability, elasticity can be kept during an earthquake, the probability of serious structural loss is further reduced, the energy dissipation piece 4 is hinged with the precast column 1 and the precast beam 2, a certain rotation angle is realized, the capability of bearing the shearing force of the node is further improved, the multi-stage fortification is realized, the elasticity of the beam column is kept under the earthquake effect, meanwhile, the energy dissipation piece 4 is spliced with the connecting seat 7 through the connecting column 401, when each precast piece is assembled, only the pin shaft 3 is required to be inserted into the first connecting plate 5 and the second connecting plate 6, and two ends of the energy dissipation piece 4 are not required to be spliced into the connecting seat 7, the connecting column 401 of the energy dissipation piece 4 is laterally inserted into the through holes 701 of the connecting seat 7, the assembling bolt hole is completed, the hidden danger caused by machining error can be reduced, the on-site construction can be efficiently installed, and the on-site vibration is convenient.
In this embodiment, a first connecting hole 501 is formed in the first connecting plate 5, a second connecting hole 601 is formed in the second connecting plate 6, the shape and the size of the first connecting hole 501 and the second connecting hole 601 are the same, a first groove 502 is formed in one end, connected with the second connecting plate 6, of the first connecting plate 5, the first groove 502 is used for inserting the second connecting plate 6, first connecting holes 501 are formed in two side walls of the first groove 502, a pin shaft 3 penetrates through the first connecting hole 501, the second connecting hole 601 and the second first connecting hole 501 in sequence to hinge the first connecting plate 5 and the second connecting plate 6, and the first connecting hole 501 and the second connecting hole 601 are round holes with the same diameter.
The pin shaft 3 of this embodiment includes a central body 301 and a clamping body 302, the central body 301 is provided with a second groove 3011 matched with the clamping body 302, the height of the clamping body 302 is greater than the depth of the second groove 3011, the pin shaft 3 passes through the first connecting hole 501 and the second connecting hole 601, and the clamping body 302 is tangent to the inner walls of the first connecting hole 501 and the second connecting hole 601. The central body 301 of the present embodiment is a cylinder, and it should be noted that the central body 301 is not limited to a cylinder with a circular cross section, the clamping body 302 is a block body composed of a cuboid and a semi-cylinder, and the cross section of the clamping body 302 is a graph composed of three straight line segments and one arc line segment. The pin shaft 3 of this embodiment is easy to install, the central body 301 is firstly placed in the connecting hole, then the clamping bodies 302 are sequentially inserted, if the clamping bodies 302 cannot be inserted, the rotatable central body 301 can be inserted at an angle or the clamping bodies 302 can be replaced, so that the installation discomfort caused by the processing and construction errors of the pin shaft 3 is avoided, the quick and efficient on-site installation is ensured, the clamping bodies 302 are tangent to the inner wall of the connecting hole, the gap between the pin shaft 3 and the inner wall of the connecting hole is reduced, and the stable connection is ensured.
In addition, the center of the connecting port 702 on the connecting seat 7 of the embodiment is located on the axis of the through hole 701, the central angle of the connecting port 702 is preferably 5 ° to 170 °, the connecting port 702 is located in the middle of the through hole 701, the central angle is expanded by using the vertical line of the prefabricated column 1 passing through the axis of the through hole 701 as the symmetrical axial direction, so that the connection and a certain rotation angle of the beam column can be ensured, if the opening angle is too small, the hinge can be changed into the fixed connection, the working state of the energy dissipation part 4 is affected, if the opening angle is too large, otherwise, the internal force transmission is too concentrated, the connection is broken, and the energy dissipation part 4 is invalid. The cross section of the through hole 701 in this embodiment is circular, the opening side wall of the connection port 702 is a cylindrical side wall, and the connection port 702 is located on a circle concentric with the through hole 701.
In this embodiment, the energy dissipation member 4 includes a core plate 402, a first outer sleeve 403, a second outer sleeve 404, and an unbonded material layer 405, the connecting columns 401 are disposed at two ends of the core plate 402, the first outer sleeve 403 and the second outer sleeve 404 are connected by bolts 8 to form a hollow sleeve, and the first outer sleeve 403 and the second outer sleeve 404 are sleeved in the middle part of the core plate 402, and the cross-sectional area of the middle part of the core plate 402 is smaller than the cross-sectional areas of two sides of the core plate 402. In this embodiment, the two sides of the middle part of the core plate 402 are concave to form the weakened section of the core plate 402, and the two sides of the core plate 402, which are not concave, are non-weakened sections, and in this embodiment, the length of the weakened section of the core plate 402 is smaller than that of the first outer sleeve 403 and the second outer sleeve 404, so that the whole weakened section is located in the sleeve formed by the first outer sleeve 403 and the second outer sleeve 404, when an earthquake occurs, the damage of the energy dissipation member 4 is concentrated in the weakened section, the weakened section enters a plastic state, the non-weakened section maintains an elastic state, and the non-weakened section maintains stability. In addition, the core plate 402 is provided with a reinforcing rib 406, the side surfaces of the core plate 402, which are close to the first outer sleeve 403 and the second outer sleeve 404, are respectively provided with the reinforcing rib 406, and the first outer sleeve 403 and the second outer sleeve 404 are provided with a third groove 407 matched with the reinforcing rib 406, so that the reinforcing rib 406 can extend towards the middle and protrude out of the first outer sleeve 403 and the second outer sleeve 404, the length direction of the reinforcing rib 406 in the embodiment is consistent with the length direction of the core plate 402, the length of the reinforcing rib 406 is not more than half of the length of a non-weakened section of the core plate 402, the reinforcing rib 406 is vertically connected with the core plate 402, and one side, which is close to the connecting column 401, of the reinforcing rib 406 in the embodiment is a wedge-shaped inclined surface, so that the reinforcing rib 406 collides with the connecting seat 7 when the energy dissipation piece 4 rotates with the connecting seat 7. The stiffening ribs 406 may increase the strength of the non-weakened sections of the core 402, inhibit out-of-plane bending and instability of the non-weakened sections of the core 402, and ensure normal in-plane deformation of the energy consuming members 4. In addition, there is a non-adhesive material layer 405 between the core plate 402 and the first outer sleeve 403 and between the core plate 402 and the second outer sleeve 404, so that there is no gap between the core plate 402 and the first outer sleeve 403 and between the core plate and the second outer sleeve 404, the non-adhesive material layer 405 in this embodiment is made of a material with a low friction coefficient, such as butyl rubber, and the non-adhesive material layer 405 can eliminate the internal force transmission between the outer sleeve and the core plate 402, so that the core plate 402 does not have the phenomenon of out-of-plane instability, thereby ensuring the stable working state of the energy dissipation member 4 and further improving the energy dissipation capability of the energy dissipation member 4. If the non-adhesive material layer 405 is not provided, a larger internal force transmission exists between the first outer sleeve 403, the second outer sleeve 404 and the weakened section of the core plate 402, when the structure bears the earthquake action to enable the energy dissipation member 4 to be pressed and deformed, although the weakened section of the core plate 402 cannot generate the out-of-plane instability phenomenon, due to the force transmission between the first outer sleeve 403, the second outer sleeve 404 and the weakened section of the core plate 402, the rigidity of the weakened section of the core plate 402 is larger than that of the non-weakened section, the out-of-plane instability phenomenon can be generated in the non-weakened section, the non-weakened section is extremely easy to generate the pressed and unstable once being pressed and the energy dissipation member 4 cannot exert the energy dissipation protection function, and further the whole structure loses the bending resistance, so that the non-adhesive material layer 405 is added between the first outer sleeve 403, the second outer sleeve 404 and the core plate 402, the stable energy dissipation working state of the energy dissipation member 4 can be ensured when the whole structure is pressed, and the stable bending resistance is ensured.
The first outer sleeve 403 of this embodiment includes a first riser and a first transverse plate vertically connected to the first riser, the second outer sleeve 404 includes a second riser and a second transverse plate vertically connected to the second riser, the first riser and the second transverse plate are connected by bolts 8, the second riser and the first transverse plate are connected by bolts to form a flat hollow square tube, and the lengths of the first transverse plate and the second transverse plate are greater than the length of the weakened section of the core plate 402 and less than the length of the core plate 402. In addition, the weakened section of the central portion of the core 402 may be provided with weakened holes or the like.
In summary, the precast column 1 and the precast beam 2 of this embodiment are connected through the round pin axle 3, can transmit the shearing force, and be equipped with the power consumption piece 4 and can bear the moment of flexure, have good power consumption ability, can keep elasticity and then reduce the serious probability of losing of structure when the earthquake, and power consumption piece 4 is articulated with precast column 1, precast beam 2, have certain rotation angle, further improved the ability that the node bears the shearing force, realized multistage fortification, under the effect of earthquake keeps the elasticity of beam column, simultaneously, power consumption piece 4 is pegged graft through spliced pole 401 and connecting seat 7, when each prefab is assembled, only need to insert first connecting plate 5 and second connecting plate 6 with the power consumption piece 4 both ends peg graft in connecting seat 7, can assemble the completion, need not the mounting bolt, reduce the hidden danger that the bolt hole machining error arouses, can install fast high-efficient in the job site, and be convenient for after the shake maintenance.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (8)
1. The beam column connecting node is characterized by comprising a first connecting plate, a second connecting plate, a pin shaft and at least two energy consumption pieces, wherein the first connecting plate is connected to the side face of a prefabricated column, the second connecting plate is connected to the end face of the prefabricated beam, the first connecting plate and the second connecting plate are connected through the pin shaft, the two sides of the first connecting plate are respectively provided with the energy consumption pieces, the two ends of the energy consumption pieces are respectively hinged with the prefabricated column and the prefabricated beam, the two ends of the energy consumption pieces are provided with connecting columns, the prefabricated column and the prefabricated beam are respectively provided with connecting seats, through holes penetrating through the two ends of the connecting seats are formed in the connecting seats, connecting ports are formed in the side walls of the connecting seats, extend along the axial direction of the connecting seats and are communicated with the through holes, and the connecting columns are spliced in the through holes. The two energy consumption pieces are vertically connected with the prefabricated column and the two energy consumption pieces are vertically connected with the prefabricated beam, and the two energy consumption pieces, the first connecting plate and the second connecting plate are parallel to a horizontal plane; the two energy dissipation elements are used for bearing bending moment; the energy consumption piece comprises a core plate, a first outer sleeve, a second outer sleeve and an unbonded material layer, the connecting columns are arranged at two ends of the core plate, the first outer sleeve and the second outer sleeve are connected through bolts to form a hollow sleeve, the first outer sleeve and the second outer sleeve are sleeved in the middle of the core plate, and the unbonded material layer is arranged between the core plate and the first outer sleeve and between the core plate and the second outer sleeve; the cross-sectional area of the middle part of the core plate is smaller than that of the two sides of the core plate so as to form a weakening section in the middle part of the core plate, and the unbonded material layer is used for eliminating internal force transmission between the first outer sleeve and the second outer sleeve and the weakening section of the core plate so as to prevent the non-weakening section of the core plate from being unstable out of plane when the energy dissipation piece is subjected to earthquake action.
2. The beam-column connection node according to claim 1, wherein the first connection plate is provided with a first connection hole, the second connection plate is provided with a second connection hole, and the first connection hole and the second connection hole are identical in shape and size.
3. The beam column connecting node according to claim 2, wherein the pin shaft comprises a central body and a clamping body, the central body is provided with a groove matched with the clamping body, the height of the clamping body is larger than the depth of the groove, the pin shaft penetrates through the first connecting hole and the second connecting hole, and the clamping body is tangent to the inner walls of the first connecting hole and the second connecting hole.
4. The beam column connection node according to claim 1, wherein the center of the connection port is located on the axis of the through hole, the center angle of the connection port is 5 ° to 170 °, and the connection port is located in the middle of the through hole.
5. The beam-column connection node of claim 1, wherein the core plate is provided with reinforcing ribs.
6. The beam-column connection node of claim 1, wherein both sides of the central portion of the core plate are concave.
7. The beam-column connection node of claim 6, wherein the length of the inner recess of the core plate is less than the length of the first and second jackets.
8. The beam-column connection node of claim 1, wherein the first jacket and the second jacket are L-shaped plates, the first jacket comprises a first riser and a first cross plate vertically connected to the first riser, the second jacket comprises a second riser and a second cross plate vertically connected to the second riser, the first riser is connected to the second cross plate by a bolt, and the second riser is connected to the first cross plate by a bolt.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109779019B (en) * | 2019-02-01 | 2020-07-24 | 江苏华木空间结构有限公司 | Steel structure framework convenient to connect |
| CN110318568B (en) * | 2019-05-21 | 2021-04-06 | 宁波工程学院 | Self-resetting assembly type truss structure |
| CN110318464A (en) * | 2019-05-21 | 2019-10-11 | 宁波工程学院 | A kind of Self-resetting frame structure |
| CN110318478A (en) * | 2019-05-21 | 2019-10-11 | 宁波工程学院 | A kind of Self-resetting assembly concrete girder construction |
| CN113322773B (en) * | 2021-06-04 | 2022-08-05 | 南充职业技术学院 | Steel structure beam for municipal road and bridge building construction and construction method thereof |
| CN113914464B (en) * | 2021-10-22 | 2022-09-27 | 福建诚达钢构有限公司 | Reinforced assembled steel structure connecting structure |
| CN115787835A (en) * | 2022-11-29 | 2023-03-14 | 中国十九冶集团有限公司 | Self-resetting layered assembly type steel frame beam-column joint structure |
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