CN112814190A - Bending energy-consuming type cable system support - Google Patents

Bending energy-consuming type cable system support Download PDF

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Publication number
CN112814190A
CN112814190A CN202110134278.8A CN202110134278A CN112814190A CN 112814190 A CN112814190 A CN 112814190A CN 202110134278 A CN202110134278 A CN 202110134278A CN 112814190 A CN112814190 A CN 112814190A
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CN
China
Prior art keywords
steel
cable
steel cable
steel plate
cables
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110134278.8A
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Chinese (zh)
Inventor
暴伟
梁展华
周向前
刘乾
林文哲
鲁建森
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Guangzhou University
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Guangzhou University
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Publication date
Application filed by Guangzhou University filed Critical Guangzhou University
Priority to CN202110134278.8A priority Critical patent/CN112814190A/en
Publication of CN112814190A publication Critical patent/CN112814190A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/98Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate
    • E04H9/02Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate withstanding earthquake or sinking of ground
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings

Abstract

A bending energy-consumption type cable system support comprises a steel cable closed ring and 4 steel cables, wherein the steel cable closed ring is a rectangular steel cable ring, the 4 steel cables are located on the same plane, one end of each steel cable is fixedly connected with the steel cable closed ring, the 4 steel cables are respectively connected to 4 corners of the steel cable closed ring, and the other end of each steel cable is connected to a building frame structure. Under the action of left and right lateral forces, the 4 steel cables are all in a pulled state, have better anti-seismic performance and belong to the field of building structure support.

Description

Bending energy-consuming type cable system support
Technical Field
The invention relates to the field of building structure supports, in particular to a bending energy-consuming type cable system support.
Background
The lateral rigidity and the shock resistance of the frame structure can be effectively improved through the support. The ordinary support is easy to generate buckling damage under the action of an earthquake, the difficulty of repair and reinforcement engineering after the damage is high, and the problem of support buckling is solved due to the appearance of the cable system support, but in the traditional cable system support, as shown in fig. 1-2, under a large vibration amplitude, only one steel cable provides lateral stiffness in a tensioned state, the other steel cable in a relaxed state does not contribute to the lateral force resistance of the structure, the steel cable is subjected to brittle failure under the lateral force due to the low ductility of the tensioned steel cable, the risk of structural collapse is increased, and the steel cable with low ductility contributes little or hardly contributes to the energy consumption capability of the lifting structure. Therefore, if the deformation tendencies of the two steel cables can be utilized simultaneously and the energy consumption measures are combined to consume energy, the support and the frame structure can be further prevented from being damaged.
The existing energy consumption measures are mainly characterized in that the energy consumption capacity of the structure is enhanced through metal or different types of dampers, the energy consumption measures can be mainly divided into axial yielding energy consumption, shearing yielding energy consumption and bending yielding energy consumption according to different energy consumption mechanisms, the existing energy consumption measures for bending yielding are mainly applied to the field of dampers, the research on the synergistic energy consumption of the dampers and supports is still lacked at present, and the excellent visual damage characteristic after yielding has great potential in the aspect of reinforcing and repairing the building structure.
The traditional cable system support is also provided with a hollow steel cylinder in the center, so that the steel cable can penetrate through the hollow steel cylinder at a larger gradient, and the steel cable at two sides can keep tension under the action of lateral force through the rotation limitation of the hollow steel cylinder. Tests show that the cable system support with the central steel cylinder can greatly reduce the increase of column pressure caused by the action of common support, and limit the interlayer displacement within a certain range, but the added hollow steel cylinder does not bring enough energy consumption capability to the structure, and cannot dissipate seismic energy under the action of earthquake.
In 2018, Babak proposes that a steel plate is additionally arranged at the support center of a cable system, and a steel cable is always in a tension state through the rotation of a middle steel plate under the action of lateral force, so that the lateral rigidity of the structure is improved.
In 2019, M.H.Mehrabi proposes that steel cables are connected together at intersection points by a pre-pressing spring in a traditional cable system supporting center, under the action of the pre-pressing spring force, when each steel cable is in a tension state, and a frame structure generates lateral displacement, the pre-pressing spring extends to delay the action of the steel cable, when the frame returns to the original position, the spring is compressed again, the system has stronger self-recovery capability through the spring, but the spring does not allow the shaping deformation, and the energy consumption capability under the elastic deformation is limited. After a single lateral force action, the self-recovery property of the spring still drives the structure to oscillate for a small period, and the oscillation is unfavorable for preventing resonance; under the action of strong earthquake, only one spring is utilized to prevent the system from responding more, the energy consumption capability is limited, if the spring enters a plastic deformation state, the difference between the system and the traditional cable system support is the same, and the performance of the system is directly determined by the performance of the spring. Additionally, bracing of the rigging with a center pre-stressed spring requires the spring to be completely horizontal, otherwise the stress of only one side of the spring is amplified and the overall balance is disturbed. And the steel cable has certain deflection angle requirement through the spring, which undoubtedly brings great difficulty to construction and needs high technical level installation. In addition, the degree of preload of the spring is difficult to grasp during construction.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention aims to: provides a bending energy-consuming type cable system support with better shock resistance.
A bending energy-consumption type cable system support comprises a steel cable closed ring and 4 steel cables, wherein the steel cable closed ring is a rectangular steel cable ring, the 4 steel cables are located on the same plane, one end of each steel cable is fixedly connected with the steel cable closed ring, the 4 steel cables are respectively connected to 4 corners of the steel cable closed ring, and the other end of each steel cable is connected to a building frame structure. After the structure is adopted, the steel cables are in a straightening state, when the building frame structure is subjected to left and right lateral forces, the 4 steel cables are in a pulled state only by the coordination of the steel cable closed rings and the steel cables, and the characteristic of the flexible tension member of the steel cables is greatly exerted.
Each steel cable is connected with an energy dissipation element, each energy dissipation element comprises an energy dissipation steel plate, each steel cable penetrates through the energy dissipation steel plate and is fixedly connected with the energy dissipation steel plate, and two ends of each energy dissipation steel plate are connected with stabilizing steel plates; along the peripheral direction of the steel cable closed ring, the stabilizing steel plates are positioned between the steel cables, and the stabilizing steel plates between every two adjacent 2 steel cables are fixedly connected, so that the energy dissipation elements on the 4 steel cables are connected to form a closed steel plate loop. After the structure is adopted, when the structure is subjected to left and right lateral forces, the steel cable is only drawn, the tension of the steel cable is transferred to the bending of the steel plate by the energy-consuming steel plate on the premise that the steel cable is only drawn, large damping is generated by bending the steel plate, a large amount of seismic energy is absorbed, and the steel cable is prevented from being loosened under the large lateral forces.
Preferably, the stabilizing steel plates between every two adjacent 2 steel cables are fixedly connected by the rib plates along the peripheral direction of the steel cable closed ring.
Preferably, the energy dissipation element further comprises a high-strength steel pipe, the high-strength steel pipe penetrates through the energy dissipation steel plate and is fixedly connected with the energy dissipation steel plate, and the high-strength steel pipe is sleeved on the steel cable.
Preferably, the steel cord is adhered to the high-strength steel pipe by epoxy resin, and the epoxy resin is filled in the high-strength steel pipe.
Preferably, the closed loop of steel cord is of square configuration.
Preferably, the energy dissipating steel plate is perpendicular to the steel cord passing through the energy dissipating steel plate.
Preferably, the stabilizing steel plates at both ends of the energy dissipating steel plate are parallel to the steel cable passing through the energy dissipating steel plate.
Preferably, the two ends of the energy consumption steel plate are welded with the stabilizing steel plate or connected through bolts.
Preferably, the stabilizing steel plate is welded or bolted to the rib plate.
When the bending energy-consuming type cable system support is used, the bending energy-consuming type cable system support is used on a rectangular building frame structure, a steel cable closed ring is located in the center of the building frame structure, the other ends of 4 steel cables are connected with 4 corner joints on the building frame structure, and the 4 steel cables are all in a straightening state.
The invention has the following advantages:
(1) the energy consumption capability is strong. The prior common cable system support has only one steel cable in a tension state under large lateral force and provides lateral rigidity, the other steel cable in a relaxation state does not contribute to the lateral force resistance of the structure, and the risk of structural collapse caused by the fracture of the tension steel cable under the lateral force is increased due to the low ductility of the steel cable. In the project, 4 steel ropes are kept in a pulled state under left and right lateral forces by utilizing the coordination action of the closed rings of the central ropes and the central steel ropes, the energy consumption steel plates and the steel ropes are utilized to generate large damping by bending the steel plates to dissipate the energy of earthquake, and the steel plate loop formed by the four energy consumption steel plates in the structure greatly improves the energy consumption capability of the building structure.
(2) The applicability is strong. The steel cable is used as a flexible element only subjected to pulling force, the problem of buckling of the support is perfectly solved, meanwhile, heavy equipment is not needed for installation and reinforcement of the pre-tension steel cable, influence and noise on the environment are minimal, certain construction convenience is provided, meanwhile, a steel plate loop formed by the energy-consuming steel plate provides visual damage degree for the building structure, the steel plate loop part can be directly replaced after damage, the steel plate loop part is economical and efficient, sufficient reinforcement and repair functions are provided for the building structure, and the applicability is high.
Generally speaking, when a building structure is subjected to sudden disaster loads such as earthquake, explosion, typhoon and the like, the bending energy-consuming type cable system support can play a better adjusting role, provides great convenience for repairing or reinforcing after disaster, and greatly reduces the risk of structure collapse.
Drawings
Fig. 1 is a conventional rigging support.
Fig. 2 is a deformation diagram of a conventional lashing support under a lateral force.
FIG. 3 is a schematic view showing the connection of the wire closing ring and the wire according to the first embodiment.
FIG. 4 is a deformation diagram of the wire rope closure ring in the first embodiment under a lateral force.
Fig. 5 is a schematic structural diagram of a bending energy-consuming type rigging support according to an embodiment.
Fig. 6 is a schematic connection diagram of the steel cable, the high-strength steel pipe and the energy-consuming steel plate in the first embodiment.
Fig. 7 is a deformation diagram of a bending energy dissipating tether support under lateral force according to one embodiment.
Fig. 8 is a schematic view of the connection between a bending energy-consuming rigging support and a building frame structure according to the first embodiment.
Wherein, 1 is the cable wire, 2 is cable wire closed loop, 3 is stable steel sheet, 4 is power consumption steel sheet, 5 is the floor, 6 is the high strength steel pipe, 7 is epoxy, 8 is building frame construction, and F is the yawing force.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
Example one
As shown in fig. 3-8, a bending energy-consuming type cable system support comprises a cable closed loop and 4 cables, wherein the cable closed loop is a rectangular cable loop, the 4 cables are located on the same plane, one end of each cable is fixedly connected with the cable closed loop, the 4 cables are respectively connected to 4 corners of the cable closed loop, and the other end of each cable is connected to a building frame structure.
Each steel cable is connected with an energy dissipation element, each energy dissipation element comprises an energy dissipation steel plate, each steel cable penetrates through the energy dissipation steel plate and is fixedly connected with the energy dissipation steel plate, and two ends of each energy dissipation steel plate are connected with stabilizing steel plates;
along the peripheral direction of the steel cable closed ring, the stabilizing steel plates are positioned between the steel cables, and the stabilizing steel plates between every two adjacent 2 steel cables are fixedly connected, so that the energy dissipation elements on the 4 steel cables are connected to form a closed steel plate loop.
Along the peripheral direction of the steel cable closed ring, the stabilizing steel plates between every two adjacent 2 steel cables are fixedly connected through ribbed plates.
The energy dissipation element also comprises a high-strength steel pipe, the high-strength steel pipe penetrates through the energy dissipation steel plate and is fixedly connected with the energy dissipation steel plate, and the high-strength steel pipe is sleeved on the steel cable.
The steel cable is adhered to the high-strength steel pipe through epoxy resin, and the epoxy resin is filled in the high-strength steel pipe.
The closed ring of the steel cable is of a square structure.
The energy consumption steel plate is perpendicular to the steel cable penetrating through the energy consumption steel plate.
The stabilizing steel plates at the two ends of the energy consumption steel plate are parallel to the steel cable penetrating through the energy consumption steel plate.
And two ends of the energy-consuming steel plate are welded with the stabilizing steel plate.
The stabilizing steel plate is welded with the rib plate.
TaAnd TbAll are the pulling forces to which the steel cables are subjected.
Example two
In this embodiment, the power consumption steel sheet passes through bolted connection with the steel sheet of stabilizing, and steel sheet of stabilizing passes through bolted connection with the floor.
The embodiment does not mention the same parts as the first embodiment.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims (9)

1. The utility model provides a crooked power consumption type cable system support which characterized in that: the building frame structure comprises a steel cable closed ring and 4 steel cables, wherein the steel cable closed ring is a rectangular steel cable ring, the 4 steel cables are positioned on the same plane, one end of each steel cable is fixedly connected with the steel cable closed ring, the 4 steel cables are respectively connected to 4 corners of the steel cable closed ring, and the other end of each steel cable is connected to the building frame structure;
each steel cable is connected with an energy dissipation element, each energy dissipation element comprises an energy dissipation steel plate, each steel cable penetrates through the energy dissipation steel plate and is fixedly connected with the energy dissipation steel plate, and two ends of each energy dissipation steel plate are connected with stabilizing steel plates;
along the peripheral direction of the steel cable closed ring, the stabilizing steel plates are positioned between the steel cables, and the stabilizing steel plates between every two adjacent 2 steel cables are fixedly connected, so that the energy dissipation elements on the 4 steel cables are connected to form a closed steel plate loop.
2. A bend dissipating rigging support according to claim 1, wherein: along the peripheral direction of the steel cable closed ring, the stabilizing steel plates between every two adjacent 2 steel cables are fixedly connected through ribbed plates.
3. A bend dissipating rigging support according to claim 1, wherein: the energy dissipation element also comprises a high-strength steel pipe, the high-strength steel pipe penetrates through the energy dissipation steel plate and is fixedly connected with the energy dissipation steel plate, and the high-strength steel pipe is sleeved on the steel cable.
4. A bend dissipating rigging support according to claim 3, wherein: the steel cable is adhered to the high-strength steel pipe through epoxy resin, and the epoxy resin is filled in the high-strength steel pipe.
5. A bend dissipating rigging support according to claim 1, wherein: the closed ring of the steel cable is of a square structure.
6. A bend dissipating rigging support according to claim 1, wherein: the energy consumption steel plate is perpendicular to the steel cable penetrating through the energy consumption steel plate.
7. A bend dissipating rigging support according to claim 1, wherein: the stabilizing steel plates at the two ends of the energy consumption steel plate are parallel to the steel cable penetrating through the energy consumption steel plate.
8. A bend dissipating rigging support according to claim 1, wherein: the two ends of the energy consumption steel plate are welded with the stabilizing steel plate or connected through bolts.
9. A bend dissipating rigging support according to claim 2, wherein: the stabilizing steel plate is welded with the rib plate or connected with the rib plate through a bolt.
CN202110134278.8A 2021-01-29 2021-01-29 Bending energy-consuming type cable system support Pending CN112814190A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110134278.8A CN112814190A (en) 2021-01-29 2021-01-29 Bending energy-consuming type cable system support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110134278.8A CN112814190A (en) 2021-01-29 2021-01-29 Bending energy-consuming type cable system support

Publications (1)

Publication Number Publication Date
CN112814190A true CN112814190A (en) 2021-05-18

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Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11326364B2 (en) * 2018-04-28 2022-05-10 Zhengzhou University Function-recovering energy-dissipating reinforced concrete shear wall and construction method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11326364B2 (en) * 2018-04-28 2022-05-10 Zhengzhou University Function-recovering energy-dissipating reinforced concrete shear wall and construction method thereof

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