CN117966895B - Steel structure energy consumption node device with controllable damage and construction method - Google Patents
Steel structure energy consumption node device with controllable damage and construction method Download PDFInfo
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- CN117966895B CN117966895B CN202410370408.1A CN202410370408A CN117966895B CN 117966895 B CN117966895 B CN 117966895B CN 202410370408 A CN202410370408 A CN 202410370408A CN 117966895 B CN117966895 B CN 117966895B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 86
- 239000010959 steel Substances 0.000 title claims abstract description 86
- 238000005265 energy consumption Methods 0.000 title claims abstract description 78
- 238000010276 construction Methods 0.000 title abstract description 13
- 238000003466 welding Methods 0.000 claims description 22
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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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
The invention provides a steel structure energy consumption node device with controllable damage and a construction method, comprising a box column and I-beams symmetrically arranged on two sides of the box column through two groups of connecting components; the energy consumption assembly is connected to the connecting assembly penetrating through the box column and serves as an energy consumption unit between I-beams on two sides to form energy consumption nodes, space is fully utilized, the whole structure is prevented from being influenced, building mechanical data are clear and easy to calculate, energy consumption and force transmission are clear, the structure is more stable, and construction is more convenient.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a steel structure energy consumption node device with controllable damage and a construction method.
Background
Earthquake is a sudden natural disaster which is extremely strong in destructive power and is more dominant for people at present. In the world steel structure building range, even under the structural earthquake-resistant design of 'strong nodes and weak components', many steel structure nodes still cannot bear the action of advanced earthquakes to cause node damage and failure. The energy consuming effect of steel structure nodes has been a concern for extensive students. The energy consumption of the nodes is mainly improved through three technologies in the world at present, namely an enhanced node, a weakened node and a recoverable node.
The reinforced joint is mainly used for reinforcing beam column flanges or beam column web parts of the beam column joint core area part so as to improve the anti-seismic performance of the joint, and the technology increases the application of materials and improves the manufacturing cost of the steel structure; the weakening type node mainly weakens the flange, web plate and other parts of the outer side beam of the node in size so as to meet the anti-seismic design of the strong column and the weak beam, and the technology causes a certain instability problem of the steel structure and is not suitable for being applied to some important structures; the recoverable node is mainly divided into a self-resetting structure, a swinging structure, a component replaceable structure and an additional energy consumption device structure.
The replaceable structure of the components has better material utilization efficiency and assembly convenience, but because the replaceable structure is connected through the additional components, the occupied space is increased, the whole volume of the building is larger than that of the building formed by the original components, the whole building volume load is changed, calculation is not easy, and long-term monitoring and evaluation of reliability and durability are required.
In view of the above, the applicant has studied the prior art and has made the present application.
Disclosure of Invention
The invention provides a damage-controllable steel structure energy consumption node device and a construction method, and aims to improve at least one of the technical problems.
In order to solve the technical problems, the invention provides a steel structure energy consumption node device with controllable damage, which comprises a box column and I-beams symmetrically arranged on two sides of the box column through two groups of connecting components; the connecting assembly comprises two flange connecting plates and two welding steel plates, wherein the welding steel plates are arranged on the inner side wall of the box column in parallel with the flange of the I-beam in a welding way, the flange connecting plates penetrate through the inner side wall of the box column and are fixedly installed with the welding steel plates through bolts, and the flange connecting plates are positioned at the outer side part of the box column and fixedly installed with the flange of the I-beam through bolts; the energy consumption assembly comprises four connecting pieces and a rectangular frame formed by four connecting seats, one end of each two connecting pieces is connected to two sides of one connecting seat through bolts, the energy consumption assembly further comprises two energy consumption pieces, the energy consumption pieces are arranged on two sides of the rectangular frame in a cross mode, the end of each energy consumption piece is respectively installed on the rectangular frame through the bolt connection on the connecting seat at the diagonal of the rectangular frame, and the energy consumption assembly is respectively fixedly connected with two groups of connecting assemblies on two sides through the four connecting seats.
As a further optimization, the connecting assembly further comprises two web connecting plates and reinforcing steel plates, wherein the two web connecting plates penetrate through the inner side wall of the box column and are symmetrically arranged on two sides of a web of the i-beam through bolts, the reinforcing steel plates are arranged between the two web connecting plates through bolts, and the reinforcing steel plates are located inside the box column.
As further optimization, the upper end and the lower end of the reinforced steel plate are respectively tightly propped against the welded steel plates at the upper side and the lower side.
As a further optimization, the reinforced steel plate is a low yield point steel plate with a yield point less than or equal to Q100.
As a further optimization, the energy consumption piece is a low yield point steel plate with a yield point less than or equal to Q100.
As a further optimization, the connecting piece is a high yield point steel plate with a yield point of Q355 or more.
As a further refinement, the cross section of the connecting piece is at least twice and at most three times the cross section of the energy consumer.
As further optimization, the energy consumption components are respectively welded and arranged on the upper side and the lower side of the connecting components through four connecting seats so as to be connected and fixed.
As further optimization, the energy consumption components are provided with two groups and are symmetrically arranged on two sides of the web axis of the I-beam.
The application also provides a construction method of the damage-controllable steel structure energy consumption node device, which comprises the following steps:
Step 1: respectively inserting a flange connecting plate and a web connecting plate into the box column with the pre-opening holes from two sides;
step 2: the I-beam is connected with the flange connecting plate through bolts, a welding steel plate is welded into the box column in a corner removing mode, and the flange connecting plate is connected with the welding steel plate through bolts;
step 3: the inner side and the outer side of the web plate connecting plate are respectively connected with the reinforced steel plate and the I-beam web plate through bolts, so that the side ends of the reinforced steel plate are propped against the inner side wall of the box column, and the upper side and the lower side are propped against the welded steel plate;
Step 4; and (3) assembling the energy consumption assembly, and respectively welding four connecting seats of the energy consumption assembly on welding steel plates of the connecting assemblies at two sides to form energy consumption nodes.
By adopting the technical scheme, the invention can obtain the following technical effects:
The application provides a damage-controllable steel structure energy consumption node device and a construction method, comprising a box column and I-beams symmetrically arranged on two sides of the box column through two groups of connecting components; the energy consumption assembly is connected to the connecting assembly penetrating through the box column and used as an energy consumption unit between the I-beams at two sides to form energy consumption nodes, so that when the energy consumption nodes are acted by moment and force transmitted by an earthquake, the energy consumption assembly is in a hinged mode and is deformed from an original rectangle to a parallelogram, the lengths of the four edge steel plates are unchanged and are not unstable, and the middle low yield point steel plate is deformed and consumes energy to form an energy consumption mode of 'pressing and pulling at the same time'; and the energy consumption assembly is arranged in the box column, the space advantage in the box column is utilized, the space application of the device is reduced, the stress condition of the components is improved, the stress of the whole building structure is clear and definite, in addition, the construction efficiency is improved by means of separate assembly during construction, the construction is simple and convenient, and the device can be quickly replaced after being damaged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a damage-controllable steel structure energy-consuming node device according to the present invention;
FIG. 2 is a schematic diagram of the energy consuming assembly of the present invention;
FIG. 3 is a schematic diagram of a construction method sequence of a damage-controllable energy-consuming node of a steel structure.
The marks in the figure: 1. a box column; 2. an I-beam; 3. a connection assembly; 4. a flange connecting plate; 5. welding a steel plate; 6. a web connection plate; 7. reinforcing the steel plate; 8. an energy consumption assembly; 9. a connecting piece; 10. a connecting seat; 11. and (5) energy consumption pieces.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, of the embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
As shown in fig. 1 to 2, the embodiment of the application provides a damage-controllable steel structure energy consumption node device, which comprises a box column 1 and i-beams 2 symmetrically arranged at two sides of the box column 1 through two groups of connecting components 3; the connecting assembly 3 comprises two flange connecting plates 4 and two welding steel plates 5, wherein the flange of the welding steel plates 5 parallel to the I-beam 2 is welded on the inner side wall of the box column 1, the flange connecting plates 4 penetrate through the inner side wall of the box column 1 and are fixedly installed with the welding steel plates 5 through bolts, and the flange connecting plates 4 are positioned at the outer side part of the box column 1 and fixedly installed with the flange of the I-beam 2 through bolts; further, the connecting assembly 3 further comprises two web connecting plates 6 and a reinforcing steel plate 7, the two web connecting plates 6 penetrate through the inner side wall of the box column 1 and are symmetrically arranged on two sides of the web of the I-beam 2 through bolts, the reinforcing steel plate 7 is arranged between the two web connecting plates 6 through bolts, and the reinforcing steel plate 7 is located inside the box column 1. Wherein, it is known that each component in the application is of a steel structure. The box column 1 is provided with openings at the locations where the i-beams 2 are connected, which are adapted to be penetrated by the flange connection plates 4 and the web connection plates 6.
Preferably, the box column structure further comprises a plurality of groups of energy consumption components 8 arranged in the box column 1, each energy consumption component 8 comprises a rectangular frame formed by four connecting pieces 9 and four connecting seats 10, one end part of each two connecting pieces 9 is connected to two sides of one connecting seat 10 through bolts, two energy consumption pieces 11 are transversely and vertically arranged on two sides of the connecting seat 10 respectively, the energy consumption pieces 11 are arranged on two sides of the rectangular frame in a cross mode, the end parts of the energy consumption pieces 11 are respectively connected to the rectangular frame through bolts on the connecting seats 10 at opposite angles of the rectangular frame, and the energy consumption components 8 are respectively fixedly connected with two groups of connecting components 3 on two sides through the four connecting seats 10. Specifically, the energy consumption components 8 are welded and arranged on the upper and lower welded steel plates 5 of the two-side connecting components 3 through four connecting seats 10 respectively so as to be connected and fixed. Further, in the embodiment of the application, the reinforced steel plate 7 is a low-yield-point steel plate with a yield point less than or equal to Q100, the energy dissipation member 11 is a low-yield-point steel plate with a yield point less than or equal to Q100, the connecting member 9 is a high-yield-point steel plate with a yield point greater than or equal to Q355, and the cross section of the connecting member 9 is at least 2-3 times that of the energy dissipation member 11, so that the steel plate has sufficient rigidity and does not generate instability. Therefore, when the moment caused by earthquake works is received, the energy consumption assembly 8 adopts a bolt hinged mode, the deformation capacity is excellent, the steel plate strength and the cross section area of the connecting piece 9 serving as a rectangular frame of the energy consumption assembly 8 are far higher than those of the steel plate of the middle cross energy consumption piece 11, the original positive rectangle is deformed into a parallelogram based on the two-point condition energy consumption assembly 8, the steel plate of the four-side connecting piece 9 only rotates in parallel, the steel plate of the middle energy consumption piece 11 performs tension and compression deformation, the energy consumption capacity of the steel plate with the low yield point is fully exerted, the energy consumption mode of 'tension while compression' is formed, and the stress of the steel structure among building nodes is consumed to avoid damage. In addition, as the energy consumption assembly 8 between the box column 1 and the I-beam 2 serving as the energy consumption unit is arranged inside the box column 1, the end part of the I-beam 2 is tightly connected to the outer side wall of the box column 1, the original size of the building frame formed by combining the I-beam 2 and the box column 1 is not changed, load indexes of the I-beam 2 and the box column 1 when leaving the factory are not separated, the volume of the whole building is determined, the force transmission is clear, the load indexes are clear and more stable.
The bolts on the flange connecting plate 4 and the web connecting plate 6 are spaced from the side wall of the box column 1, so that the transmission of force is prevented from being influenced.
Preferably, the upper and lower ends of the reinforced steel plate 7 are respectively tightly abutted against the welded steel plates 5 on the upper and lower sides, so that when the reinforced steel plate 7 is subjected to earthquake action, the reinforced steel plate 7 can further generate yield energy consumption action, and the whole node forms a double energy consumption mode.
In one embodiment, the i-beam 2 and the box column 1 can be further slightly welded to ensure the normal shock absorption stability, and the yield consumption of the moment to the node energy consumption assembly 8 during an earthquake is not affected.
As a preferred embodiment, the energy dissipation assemblies 8 are provided with two groups and symmetrically arranged at two sides of the web axis of the i-beam 2, so that each component in the whole node presents a symmetrical stable state as a whole, and the structure of the building is more stable.
As shown in fig. 3 (in order from left to right and from top to bottom), the application further provides a construction method of the damage-controllable steel structure energy consumption node device, which comprises the following steps:
step 1: respectively inserting two groups of flange connecting plates 4 and two groups of web connecting plates 6 into the box column 1 with the pre-opening holes from two sides;
Step 2: the I-beam 2 is connected with the flange connecting plate 4 through bolts, a welding steel plate 5 is welded into the box column 1 in a corner removing mode, and then the flange connecting plate 4 is connected with the welding steel plate 5 through bolts;
step 3: the inner side and the outer side of the web connecting plate 6 are respectively connected with the reinforced steel plate 7 and the web of the I-beam 2 through bolts, so that the side end of the reinforced steel plate 7 is propped against the inner side wall of the box column 1, and the upper side and the lower side are propped against the welded steel plate 5;
Step 4; and the energy consumption assembly 8 is assembled and then used as an energy consumption unit of the node, and four connecting seats 10 of the energy consumption assembly 8 are respectively welded on the welded steel plates 5 of the connecting assemblies 3 at the two sides to form a complete energy consumption node.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The steel structure energy consumption node device with controllable damage is characterized by comprising a box column and I-beams symmetrically arranged on two sides of the box column through two groups of connecting components; the connecting assembly comprises two flange connecting plates and two welding steel plates, wherein the welding steel plates are arranged on the inner side wall of the box column in parallel with the flange of the I-beam in a welding way, the flange connecting plates penetrate through the inner side wall of the box column and are fixedly installed with the welding steel plates through bolts, and the flange connecting plates are positioned at the outer side part of the box column and fixedly installed with the flange of the I-beam through bolts;
The energy consumption assembly comprises a rectangular frame formed by four connecting pieces and four connecting seats, one end part of each two connecting pieces is connected to two sides of one connecting seat through bolts, the energy consumption assembly further comprises two energy consumption pieces, the energy consumption pieces are arranged on two sides of the rectangular frame in a cross mode, the end parts of the energy consumption pieces are respectively installed on the rectangular frame through the bolt connection on the connecting seats at opposite angles of the rectangular frame, and the energy consumption assembly is respectively fixedly connected with the two groups of connecting assemblies on two sides through the four connecting seats; the energy consumption piece is a low-yield-point steel plate with the yield point smaller than or equal to Q100; the connecting piece is a high-yield-point steel plate with the yield point being more than or equal to Q355.
2. The steel structure energy consumption node device with controllable damage according to claim 1, wherein the connecting assembly further comprises two web connecting plates and a reinforcing steel plate, the two web connecting plates penetrate through the inner side wall of the box column and are symmetrically arranged on two sides of a web of the I-beam through bolts, the reinforcing steel plate is arranged between the two web connecting plates through bolts, and the reinforcing steel plate is located inside the box column.
3. The damage-controllable steel structure energy consumption node device according to claim 2, wherein the upper and lower ends of the reinforced steel plate are respectively tightly abutted against the welded steel plates at the upper and lower sides.
4. The damage-controllable steel structure energy consumption node device according to claim 2, wherein the reinforced steel plate is a low yield point steel plate with a yield point of Q100 or less.
5. A damage-controllable steel structure energy consuming node device according to claim 1, wherein the cross section of the connecting member is at least twice and at most three times the cross section of the energy consuming member.
6. The steel structure energy consumption node device with controllable damage according to claim 1, wherein the energy consumption components are welded on the upper and lower welded steel plates of the two connecting components through four connecting seats respectively for connection and fixation.
7. The damage-controllable steel structure energy consumption node device according to claim 1, wherein two groups of energy consumption components are symmetrically arranged on two sides of the web axis of the i-beam.
8. A method of constructing a damage-controllable steel structure energy consuming node apparatus according to any one of claims 1 to 7, comprising the steps of:
Step 1: respectively inserting a flange connecting plate and a web connecting plate into the box column with the pre-opening holes from two sides;
step 2: the I-beam is connected with the flange connecting plate through bolts, a welding steel plate is welded into the box column in a corner removing mode, and the flange connecting plate is connected with the welding steel plate through bolts;
step 3: the inner side and the outer side of the web plate connecting plate are respectively connected with the reinforced steel plate and the I-beam web plate through bolts, so that the side ends of the reinforced steel plate are propped against the inner side wall of the box column, and the upper side and the lower side are propped against the welded steel plate;
Step 4; and (3) assembling the energy consumption assembly, and respectively welding four connecting seats of the energy consumption assembly on welding steel plates of the connecting assemblies at two sides to form energy consumption nodes.
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CN103993670A (en) * | 2014-05-21 | 2014-08-20 | 山东科技大学 | Rectangular concrete-filled steel tubular column-steel beam plug board anchoring type node construction method |
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CN117052007A (en) * | 2023-09-12 | 2023-11-14 | 北京交通大学 | Linear damper and rectangular damper with same |
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