CN109057026B - Assembly type node based on austenite SMA-steel plate group and martensite SMA rod - Google Patents
Assembly type node based on austenite SMA-steel plate group and martensite SMA rod Download PDFInfo
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- CN109057026B CN109057026B CN201811106125.7A CN201811106125A CN109057026B CN 109057026 B CN109057026 B CN 109057026B CN 201811106125 A CN201811106125 A CN 201811106125A CN 109057026 B CN109057026 B CN 109057026B
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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
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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
- E04B2001/2406—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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- 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
- E04B2001/2448—Connections between open section profiles
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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
- E04B2001/2457—Beam to beam connections
Abstract
The invention discloses an assembled node based on an austenite SMA-steel plate group and a martensite SMA rod. The node comprises an I-shaped steel beam, a friction type high-strength bolt, a high-strength steel rectangular end plate, a dog-bone type connecting steel plate, an austenite SMA dog-bone type connecting plate, an austenite SMA disc spring, a martensite SMA rod and an anchoring block. The upper flange and the lower flange of the steel beam are connected through the steel-SMA dog-bone connecting plate group through friction type high-strength bolts, and the web plate of the steel beam is connected through a martensite SMA rod and a high-strength rectangular end plate. Furthermore, one end of the martensite SMA rod is fixed on an anchoring block on a steel beam web plate through threads, and the other end of the martensite SMA rod is fixed through a high-strength bolt and a high-strength nut and applies pre-tightening force to the martensite SMA rod. The restorability of the node is enhanced by the SMA-steel plate group, the energy consumption capability of the node is enhanced by the martensite SMA rod, the deformation recovery after earthquake can be realized by simple heating, and the node applied to steel frame earthquake resistance can obviously improve the earthquake resistance of the structure, reduce the restoration difficulty and save the restoration cost.
Description
The technical field is as follows:
the invention belongs to the field of structural engineering, and particularly relates to an assembled node based on an austenite SMA-steel plate group and a martensite SMA rod.
Background art:
in an earthquake-resistant structure, a reliable mechanism and stable energy dissipation capability are pursued in order to ensure the survival of the structure under the earthquake by the traditional design concept of a steel frame. Therefore, in order to take advantage of the ductility of steel frames, beam ends, column feet and connecting joints in the structure are typically allowed to simultaneously inelastically deform to balance the energy input of strong earthquakes. While this may achieve the goal of life safety, most components of a structure designed following this concept are subject to inelastic deformation and non-restorable in earthquakes, so the structure has potential overall economic losses.
In order to reduce the residual deformation of the component under the action of an earthquake and solve the problems of high restoration cost and high restoration difficulty after the earthquake, people put forward a good system which not only needs to meet the design requirements of strength, rigidity, ductility and energy consumption of the structure, but also needs to ensure certain self-resetting capability, so that the requirement that the structure has smaller or even no residual deformation under the action of the earthquake can be met. The node is used as an important component in the structure, the performance of the whole structure under the action of external load is directly influenced by the quality of the design of the node, so that the self-resetting capability of a system is realized by ensuring the self-resetting characteristic of the node, and the method for realizing the self-resetting characteristic comprises two methods of applying prestress and using an intelligent material with the self-resetting performance.
The intelligent material with self-resetting performance comprises a Shape Memory Alloy (SMA) material, and has excellent shape memory effect and super-elasticity performance, wherein the former means that the material can recover the original shape by heating the material after being deformed under the action of load when the load is unloaded, and the latter means that the material can automatically recover the original shape after being deformed under the action of load when the load is unloaded, and the two characteristics respectively correspond to two phases of the shape memory alloy: the low-temperature martensite phase and the high-temperature austenite phase, namely the low-temperature martensite SMA, have full hysteresis curves and good energy consumption characteristics, and need to be restored to the original shapes through simple heating treatment after deformation; the high-temperature phase austenite SMA has good superelasticity, can automatically recover the original shape after being deformed and unloaded, but has weak energy consumption capability.
In the existing node design, in order to realize the restorable characteristic of the structure, most of the nodes are made of austenite SMA materials, although the self-restoration can be well realized, due to the super-elastic characteristic, the rigidity of the nodes is reduced, and the energy consumption capability of the nodes is weakened, so that the whole structure can be greatly deformed under the cyclic action of an earthquake, other components except the nodes are greatly deformed and can not be restored, and therefore, the node not only has unsafe feeling, but also causes certain loss.
The invention content is as follows:
in order to solve the technical problems, the invention provides an assembled node based on an austenite SMA-steel plate group and a martensite SMA rod. The node is located far from the beam-column node 1/3 beam-length, which reduces the bending moment applied to the beam-column node connection and concentrates the plastic deformation in the steel frame on this node of the structure. The node is formed by components such as a disc spring, a bar, a dog-bone connecting plate and the like which are made of martensite and austenite SMA, and is matched with the use of the dog-bone connecting steel plate to realize the balance of self-resetting and energy consumption characteristics. The node ensures that other parts are in an elastic state in the deformation process through the composite energy consumption of the dog-bone type connecting steel plate and the martensite SMA rod, the restorability of the node is realized through the restorable characteristics of the martensite SMA and the austenite SMA, the plastic deformation of the structure is concentrated at the austenite SMA dog-bone type connecting plate, the martensite SMA rod and the austenite SMA disc spring of the node, and the deformed martensite SMA rod can be automatically restored through heating the restorable and austenite SMA dog-bone type connecting plate, so that the restorable characteristics of the node are realized, the energy consumption capability of the node is ensured, the possibility of damage is reduced, and the residual deformation and loss after an earthquake are reduced.
Compared with the traditional structure, the structure has the following innovation points: (1) the use of the martensite SMA and the austenite SMA can realize self-resetting and simultaneously enable the node to have better energy consumption characteristics. The martensite SMA bar has better energy consumption characteristics, can recover deformation by heating after deformation, the austenite SMA dog-bone type connecting plate has super-elasticity performance, and can automatically recover deformation by unloading after deformation (2) the combination of the austenite SMA dog-bone type connecting plate and the dog-bone type connecting steel plate, thereby not only ensuring the energy consumption performance and the recoverability of the node, but also effectively preventing the local buckling caused by the shortage of the SMA material due to super-elasticity. (3) The combined use of steel-SMA and plate group-rod can make the deformation under the load mainly concentrate on the component made of SMA, and other components are basically in the elastic stage, thus reducing the possibility of damage. (4) The utilization of the rectangular end plate made of the high-strength steel in the beam-beam splicing node can effectively reduce the thickness of the end plate, enhance the integrity of the beam and reduce the weight of the node. Meanwhile, an austenite SMA disc spring is added between the nut of the high-strength bolt and the high-strength rectangular end plate, so that the axial deformation along the beam direction can be absorbed, and the tension of the high-strength bolt under the shearing action is minimized. And the super elasticity of the austenite SMA disc spring can provide energy consumption and contraction capacity when being stressed, thereby improving the connection cycle performance.
In order to achieve the purpose, the invention provides the following technical scheme:
an assembled node based on an austenite SMA-steel plate group and a martensite SMA rod comprises two I-shaped steel beams which are mutually butted; one surfaces of the upper and lower surfaces of the flanges of the two I-shaped steel beams are connected through an austenite SMA dog-bone type connecting plate, and the other surfaces of the flanges of the two I-shaped steel beams are connected through a dog-bone type connecting plate; the web plates of the two I-shaped steel beams are welded with anchoring blocks; two ends of the martensite SMA rod are respectively fixed with the two anchoring blocks; the two I-shaped steel beams are welded on webs at the adjacent ends, and the cross sections of the two end plates are connected through high-strength bolts provided with austenite SMA disc springs.
In a further refinement, the anchor blocks include a threaded anchor block and a non-threaded anchor block; one web plate of the two I-shaped steel beams is welded with an anchoring block with threads, and the other web plate is welded with an anchoring block without threads; threads are carved at two ends of the martensite SMA rod, one end of the martensite SMA rod is in threaded connection with the threaded anchoring block, and the other end of the martensite SMA rod penetrates through the unthreaded anchoring block to be in threaded connection with a high-strength bolt and nut for anchoring the martensite SMA rod.
The further improvement is that when the martensite SMA rod is fixed by the high-strength bolt and the high-strength nut, pretightening force is applied to the martensite SMA rod, so that the I-shaped steel beam and the anchoring block are in a compressed state.
Further improvement, all open corresponding circular bolt hole on the edge of a wing of girder steel, dog bone formula connecting plate and austenite SMA dog bone formula connecting plate to through the high-strength bolted connection of friction type, austenite SMA dog bone formula connecting plate is located the upside on girder steel top flange and the downside on bottom flange, and dog bone formula connecting plate is located the downside on girder steel top flange and the upside on bottom flange.
In a further improvement, the austenite SMA dog-bone connecting plate and the dog-bone connecting steel plate are assembled right above and right below the martensite SMA rod, the shape of the martensite SMA rod and the shape of the austenite SMA dog-bone connecting plate can be reset, and energy consumption is carried out by combining the dog-bone connecting steel plate.
In a further improvement, the end plate is a high-strength steel rectangular end plate; and a high-strength steel rectangular end plate is welded on the double-sided corner on the cross section of the web plate of the steel beam, a circular bolt hole is formed in the high-strength steel rectangular end plate, a high-strength bolt penetrates through the circular bolt hole, and an austenite SMA disc spring is arranged between the high-strength bolt and the high-strength rectangular end plate.
In a further improvement, the austenite SMA dog-bone connecting plate and the dog-bone connecting steel plate are connected, and the anchoring block, the martensite SMA rod and the end plate are symmetrically arranged along the joint of the two I-shaped steel beams.
In a further refinement, the fabricated node is located at a beam length that is distant from the beam-column node 1/3.
The invention has the following beneficial effects:
1. the invention uses the shape memory alloy, not only improves the brittle failure problem of the node under the action of earthquake, but also improves the self-resetting capability of the structure under the action of earthquake, and improves the problem of larger residual deformation.
2. The invention uses the combination of the shape memory alloy and the steel, the bar and the plate group, ensures the composite energy consumption performance of the structure, optimizes the stress characteristic of the node, and organically matches the self-resetting characteristic of the SMA material and the energy consumption characteristic of the steel.
3. The invention uses the combination of martensite SMA and austenite SMA, fully utilizes the energy consumption characteristic of the martensite SMA and the self-resetting characteristic of the austenite SMA, and organically balances the energy consumption characteristic and the self-resetting characteristic of the node.
4. The invention is convenient for assembly construction, accelerates the progress of the project, is convenient for replacement after the node is damaged, thereby being capable of being continuously and normally used and reducing the repair difficulty and cost after the earthquake.
5. The node provided by the invention is completely symmetrical about a neutral axis, so that the performance of the node under the action of positive and negative bending moments is consistent, taking the action of bearing the positive bending moment as an example, under the action of the positive bending moment, the dog-bone connecting steel plate on the upper side of the lower flange of the connecting beam, the austenite SMA dog-bone connecting plate on the lower side of the lower flange of the connecting beam and the martensite SMA rod on the lower side of the web plate bear the action of tension, the tension on the end plate is born by the bolt, but in order to reduce the tension born by the bolt, the austenite SMA disk spring is added, so that the axial force is transferred to the austenite SMA spring and the martensite SMA rod, and meanwhile, the shearing force born by the friction. The dog-bone connecting steel plate not only plays an energy consumption role together with the SMA member, but also prevents the martensite SMA bar and the austenite SMA dog-bone connecting plate from local buckling. The shearing force of the joint is mainly born by the friction type high-strength bolt, and a small part of shearing force is born by the friction force between the end plate surface and the surface. Therefore, the deformation of the node is mainly concentrated on the martensite SMA rod, the austenite SMA spring and the austenite SMA dog-bone connecting plate, so that the node member can be self-restored or restored by simple heating after the load is relieved.
Description of the drawings:
FIG. 1 is a schematic diagram of the location of the present invention in the architecture
FIG. 2 is a detailed view of the present invention
FIG. 3 is a front view of the present invention
FIG. 4 is a side view of the present invention
FIG. 5 is a top view of the present invention
FIG. 6 is a schematic view of an SMA steel bar and an anchoring block
FIG. 7 is a schematic view of a dog bone type connecting plate
FIG. 8 is a schematic view of a steel beam, anchor block and end plate
FIG. 9 is a schematic view of an SMA disc spring
Wherein, the numbering of each part is as follows: 1. the steel beam anchor block comprises an anchor block 2 with threads, a steel beam upper flange 3 close to one side of a column, an austenite SMA dog-bone connecting plate 4, a dog-bone connecting steel plate 5, a friction type high-strength bolt 6, a non-threaded anchor block 7, a high-strength bolt nut 8 for anchoring a martensite SMA rod, a steel beam upper flange 9 far away from one side of the column, a martensite SMA rod B side threaded area 10, a martensite SMA rod 11, an end plate 12 close to one side of the column, an austenite SMA disc spring 13, an end plate 14 far away from one side of the column, a high-strength bolt 15, a steel beam lower flange 16 near one side of the column, a steel beam lower flange 17 far away from one side of the column, a martensite SMA rod A side threaded area 18, internal threads 19 of the anchor block close to one side of the column, and holes of the anchor block far away from one.
The specific implementation mode is as follows:
in order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides an assembled node based on an austenite SMA-steel plate group and a martensite SMA rod, as shown in figure 2, the assembled node comprises 4I-shaped steel beams, 4 dog-bone connecting steel plates, 4 austenite SMA dog-bone connecting plates, 4 martensite SMA rods, an austenite SMA disc spring, 4 threaded anchoring blocks, 4 unthreaded anchoring blocks and 4 high-strength steel rectangular end plates, wherein:
1. after the components are produced and processed in a factory in a standardized manner, pre-positioning is carried out on a factory assembly line, holes are formed in the connecting positions of high-strength bolts on a steel beam, a dog-bone connecting plate and a high-strength steel rectangular end plate, threads matched with the martensite SMA rods are engraved in 4 anchoring blocks on a steel beam web plate close to one side of the column, and holes matched with the martensite SMA rods are formed in 4 anchoring blocks on a steel beam web plate far away from one side of the column.
2. Welding the high-strength steel rectangular end plate and the anchoring block at the web plate of the steel beam by positioning double-sided corners, placing the martensite SMA bar in the corresponding anchoring block on the web plate of the steel beam, wherein one end (A end) is screwed with the anchoring block with the thread through the thread, and the other end (B end) directly extends out of the anchoring block without the thread, is fixed by a high-strength bolt and a nut, and applies pretightening force to the anchoring block.
3. And the high-strength steel rectangular end plates on the beam web plates are connected by high-strength bolts provided with austenite SMA disc springs, and the austenite SMA disc springs are positioned between nuts of the high-strength bolts and the high-strength steel rectangular end plates.
4. At the edge of a wing department of roof beam, the circular bolt hole that the friction type high strength bolt passed the upside dog bone formula connecting plate on the top flange in proper order, the girder steel top flange, the downside dog bone formula connecting plate on the top flange connects the top flange of roof beam, the friction type high strength bolt passes the upside dog bone formula connecting plate on the bottom flange in proper order, the girder steel bottom flange, the circular bolt hole of the downside dog bone formula connecting plate on the bottom flange connects the bottom flange of roof beam, austenite SMA dog bone formula connecting plate is located the upside on the roof beam top flange and the downside on the bottom flange, dog bone formula connecting plate is located the downside on the roof beam top flange and the upside on the bottom flange.
The node of the invention uses the combination of shape memory alloy and steel, the combination of plate group and bar and the combination of austenite SMA and martensite SMA, has good energy consumption capability and self-resetting capability, and the energy consumption capability and the self-resetting capability are adjustable, the post-earthquake repair workload is low, and the comprehensive economic benefit is high.
Claims (8)
1. An assembled node based on an austenite SMA-steel plate group and a martensite SMA rod is characterized in that: comprises two I-shaped steel beams which are mutually butted; one surfaces of the upper and lower surfaces of the flanges of the two I-shaped steel beams are connected through an austenite SMA dog-bone type connecting plate, and the other surfaces of the flanges of the two I-shaped steel beams are connected through a dog-bone type connecting plate; the web plates of the two I-shaped steel beams are welded with anchoring blocks; two ends of the martensite SMA rod are respectively fixed with the two anchoring blocks; the two I-shaped steel beams are welded on webs at the adjacent ends, and the cross sections of the two end plates are connected through high-strength bolts provided with austenite SMA disc springs.
2. The fabricated node based on an austenitic SMA-steel plate pack and a martensitic SMA rod according to claim 1, wherein the anchor blocks comprise a threaded anchor block and a non-threaded anchor block; one web plate of the two I-shaped steel beams is welded with an anchoring block with threads, and the other web plate is welded with an anchoring block without threads; threads are carved at two ends of the martensite SMA rod, one end of the martensite SMA rod is in threaded connection with the threaded anchoring block, and the other end of the martensite SMA rod penetrates through the unthreaded anchoring block to be in threaded connection with a high-strength bolt and nut for anchoring the martensite SMA rod.
3. The fabricated node based on the austenitic SMA-steel plate group and the martensitic SMA rod according to claim 2, wherein when the martensitic SMA rod is fixed by a high-strength bolt and a nut, a pre-tightening force is applied to the martensitic SMA rod, so that the I-shaped steel beam and the anchoring block are in a compressed state.
4. The assembled node based on the austenite SMA-steel plate group and the martensite SMA rod according to claim 1, wherein the flanges of the steel beam, the dog-bone connecting steel plate and the austenite SMA dog-bone connecting plate are respectively provided with corresponding circular bolt holes and connected through friction type high-strength bolts, the austenite SMA dog-bone connecting plate is positioned on the upper side of the upper flange of the steel beam and the lower side of the lower flange of the steel beam, and the dog-bone connecting steel plate is positioned on the lower side of the upper flange of the steel beam and the upper side of the lower flange of the steel beam.
5. The assembled node based on the austenite SMA-steel plate group and the martensite SMA rod according to claim 4, wherein the austenite SMA dog-bone connecting plate and the dog-bone connecting steel plate are assembled right above and right below the martensite SMA rod, and the martensite SMA rod and the austenite SMA dog-bone connecting plate exert shape restorable characteristics and simultaneously consume energy by combining the dog-bone connecting steel plate.
6. The fabricated node based on an austenitic SMA-steel plate group and a martensitic SMA rod according to claim 1, wherein the end plates are high-strength steel rectangular end plates; and a high-strength steel rectangular end plate is welded on the double-sided corner on the cross section of the web plate of the steel beam, a circular bolt hole is formed in the high-strength steel rectangular end plate, a high-strength bolt penetrates through the circular bolt hole, and an austenite SMA disc spring is arranged between the high-strength bolt and the high-strength rectangular end plate.
7. The fabricated node based on the austenite SMA-steel plate group and the martensite SMA rod of claim 1, wherein the austenite SMA dog-bone connecting plate, the dog-bone connecting steel plate, the anchoring block, the martensite SMA rod and the end plate are symmetrically arranged along the joint of the two I-shaped steel beams.
8. The austenitic SMA-steel plate pack and martensitic SMA rod-based fabricated node of claim 1, wherein the fabricated node is located 1/3 beam lengths away from a beam-column node.
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| CN201811106125.7A CN109057026B (en) | 2018-09-21 | 2018-09-21 | Assembly type node based on austenite SMA-steel plate group and martensite SMA rod |
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| CN201811106125.7A CN109057026B (en) | 2018-09-21 | 2018-09-21 | Assembly type node based on austenite SMA-steel plate group and martensite SMA rod |
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| CN109680819B (en) * | 2019-02-19 | 2020-11-10 | 湖南大学 | Self-reset node suitable for modular building |
| CN110219369A (en) * | 2019-07-10 | 2019-09-10 | 重庆大学 | Buckling-restrained beam column Self-resetting node and assemble method based on steel-SMA board group element |
| CN110439112A (en) * | 2019-08-20 | 2019-11-12 | 华南理工大学 | It is a kind of to exempt from prestressing force toughness steel construction by what hinge column was combined with elastic reset beam |
| CN111779189A (en) * | 2020-08-17 | 2020-10-16 | 汤仁超 | Assembled steel construction crossbeam structure |
| CN113982113B (en) * | 2021-12-03 | 2023-08-11 | 上海泰大建筑科技有限公司 | Three-section beam and column structure and combined frame type structure thereof |
| CN114687461B (en) * | 2022-04-25 | 2023-09-29 | 新疆鑫宝隆建设工程有限责任公司 | Disc type building steel girder installation structure and construction method thereof |
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| JPH0718758A (en) * | 1992-05-01 | 1995-01-20 | Nkk Corp | Structure for absorbing thermal deformation of building |
| JPH07127141A (en) * | 1993-10-29 | 1995-05-16 | Sumitomo Metal Ind Ltd | Method of jointing steel pipe |
| CN201972261U (en) * | 2010-12-10 | 2011-09-14 | 陈云 | Energy-consuming hinge |
| CN103243819B (en) * | 2013-05-27 | 2015-07-29 | 江苏科技大学 | Assembly concrete post-girder steel energy-dissipating type nodal connection device |
| CN204691297U (en) * | 2015-05-18 | 2015-10-07 | 西安建筑科技大学 | The Tenon node of the large timber frame of ancient building that a kind of marmem is reinforced |
| CN105155685B (en) * | 2015-08-19 | 2017-03-15 | 山东建筑大学 | A kind of assembled beam-column node and its construction method |
| CN105672476B (en) * | 2016-03-10 | 2017-10-24 | 苏州科技学院 | A kind of marmem is combined the beam column of steel structure splicing node of edge of a wing friction |
| CN106638961A (en) * | 2017-01-10 | 2017-05-10 | 北京交通大学 | Assembly type steel frame connection node with post-seismic recoverable function |
| CN108277890A (en) * | 2018-04-18 | 2018-07-13 | 山东大学 | Self-resetting bean column node and steel building based on SMA bars |
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