CN207905124U - A kind of energy dissipating-frame support structure - Google Patents

Abstract

The utility model provides an energy-dissipating-frame support structure, which includes a lead viscoelastic damper, a support rod, a plurality of frame beams and a plurality of frame columns, each of the frame beams and each of the frame columns forms a structure with multiple A rectangular frame with two nodes, the support rod is detachably connected to the inner wall of the frame beam, and the lead viscoelastic damper is detachably connected to the support rod. The energy-dissipating-frame support structure of the utility model is mainly a rectangular frame composed of frame beams and frame columns. The rectangular frame has strong plastic deformation capacity; and support rods are installed inside the rectangular frame to enhance the structural bearing capacity. and lateral stiffness. Finally, using the lead viscoelastic damper’s lead core shear and extrusion deformation energy consumption and viscoelastic material’s shear hysteretic deformation energy consumption, it can dissipate seismic energy in a large earthquake and protect the main body. The safety of the structure can also provide sufficient lateral stiffness for the structure under the action of small earthquakes and wind loads.

Description

An energy dissipation-frame support structure

technical field

The utility model relates to an energy-dissipating component of a building structure, in particular to an energy-dissipating-frame support structure.

Background technique

The pure frame is also called the flexural frame, and its advantages lie in the flexible layout of the column network, good ductility, and strong plastic deformation ability. However, the pure frame is a single lateral force-resisting system with limited lateral stiffness. Under horizontal earthquakes, large lateral deformations are likely to occur, resulting in serious damage to non-structural components and even the overall collapse of the structure. A large number of reinforced concrete frame structures collapsed in the Wenchuan earthquake. It warns us that we must pay attention to the research on the anti-collapse performance of frame structures. However, the experience of some reinforced concrete frame structures with inter-column braces successfully resisting super-large earthquakes in the Wenchuan earthquake tells us that setting vertical braces between some frame columns to form a number of inter-column braced frames can improve the collapse resistance of the frame structure. Therefore, the research and application of frame-support structure is of great significance to improve the seismic capacity of multi-story buildings.

Frame-support structure is a very common structural form in multi-high-rise steel structure buildings. The so-called frame-support structure is based on the frame structure by arranging supports between some frame columns to improve the structural bearing capacity and lateral stiffness. . The supporting system and the frame system work together to form a double lateral force resistant structure system, which not only provides a certain degree of rigidity for the structure under normal force conditions, but also provides two forces for the structure under the action of horizontal earthquakes and large wind loads. The line of defense has formed an ideal destruction mechanism.

However, the two stress defense lines constructed by the frame-support structure resist external loads from the perspective of "resistance", and the support members are prone to out-of-plane instability and damage under the action of reciprocating horizontal external forces, which is not conducive to the energy dissipation of the structure. shock.

Contents of the invention

In order to solve the above technical problems, the purpose of this utility model is to provide an energy dissipation-frame support structure, which can effectively dissipate the seismic energy input into the structure in a large earthquake and protect the safety of the main structure , and can provide sufficient lateral stiffness for the structure under the action of small earthquakes and wind loads.

Based on this, the utility model proposes an energy dissipation-frame support structure, which includes a lead viscoelastic damper, a support rod, a plurality of frame beams and a plurality of frame columns, each of the frame beams and each of the frame columns is composed of A rectangular frame with multiple nodes, the support rod is detachably connected to the inner wall of the frame beam, and the lead viscoelastic damper is detachably connected to the support rod.

Optionally, the support rod is a single-bracing support rod, the two ends of the support rod are respectively detachably connected to the two diagonal nodes on the rectangular frame, and an opening is provided on the support rod A type installation part, the lead viscoelastic damper is detachably connected to the installation part.

Optionally, the support rod is a gable support rod, the two ends of the support rod are respectively detachably connected to two adjacent nodes on the rectangular frame, and the raised part of the support rod is fixedly installed There are connecting rods, the lead viscoelastic dampers are connected to both ends of the connecting rods, and one end of each lead viscoelastic damper is detachably connected to the other two adjacent nodes on the rectangular frame .

Optionally, the support rod is a wall pier type support rod, and the two ends of the support rod are respectively detachably connected to the frame beams, and the support rod is provided with an open mounting part, so The lead viscoelastic damper is detachably connected to the installation part.

Optionally, the lead viscoelastic damper includes a connecting rod and several sets of damping components, both ends of the damping component are rotatably connected to the connecting rod.

Optionally, the damping assembly includes a viscoelastic layer, a shearing steel plate, a constrained steel plate and a pin, the viscoelastic layer is vulcanized into one with the shearing steel plate and the constrained steel plate respectively, and the viscoelastic layer , the shear steel plate and the restraint steel plate are connected together through the pin shaft.

Optionally, the viscoelastic layer includes a plurality of viscoelastic rubber layers and a plurality of thin steel plates, and the plurality of viscoelastic rubber layers and the plurality of thin steel plates are alternately stacked and fixedly connected.

Optionally, the lead viscoelastic damper is a lead viscoelastic damper or a common viscoelastic damper.

Optionally, the lead viscoelastic damper also includes a lead core and a lead core cover, the lead core is inserted through a reserved hole in the viscoelastic layer, and the lead core cover and the restraining steel plate pass through Bolted.

Implementation of the utility model embodiment has the following beneficial effects:

The energy dissipation-frame support structure of the utility model is mainly a rectangular frame composed of frame beams and frame columns. The rectangular frame has strong plastic deformation capacity. At the same time, support rods are installed inside the rectangular frame to strengthen and improve the structure. Bearing capacity and lateral stiffness. Finally, the lead viscoelastic damper is connected to the support rod, and the energy consumption of lead core shearing and extrusion deformation of the lead viscoelastic damper and the shear hysteretic deformation energy consumption of the viscoelastic material are used. The energy-dissipating-frame support structure can maintain the rigidity of the main structure through the rectangular frame and support rods in a large earthquake, and effectively use the deformation of the lead viscoelastic damper to dissipate the seismic energy input into the structure to protect the safety of the main structure. Under the action of small earthquakes and wind loads, the rectangular frame and support rods can be used as the main structure to increase its lateral stiffness. It has good fatigue resistance under load and good energy consumption effect, which can well protect the safety of the main structure; because the matching installation between the support rod and the lead viscoelastic damper is a detachable connection, therefore, the utility model The energy dissipation-frame support structure is easy to install in actual engineering, does not affect the building function, and is easy to repair and replace after the earthquake, and is suitable for the field of frame building structure shock absorption and earthquake-resistant structural engineering.

Description of drawings

Fig. 1 is a structural schematic diagram of the energy dissipation-frame support structure of the preferred embodiment 1 of the present invention;

Fig. 2 is a structural schematic diagram of the energy dissipation-frame support structure of the second preferred embodiment of the utility model;

Fig. 3 is a structural schematic diagram of the energy dissipation-frame support structure of the third preferred embodiment of the utility model;

Fig. 4 is the structural representation of the lead viscoelastic damper of the energy dissipation-frame support structure of the preferred embodiment of the present invention;

Fig. 5 is the A-A schematic diagram of the lead viscoelastic damper of the energy dissipation-frame support structure of the preferred embodiment of the present invention;

Fig. 6 is a structural schematic diagram of the first type of composite lead viscoelastic damper of the energy dissipation-frame support structure of the preferred embodiment of the present invention;

Fig. 7 is a structural schematic diagram of the second type composite lead viscoelastic damper of the energy dissipation-frame support structure of the preferred embodiment of the present invention.

Explanation of reference signs:

1. Lead viscoelastic damper; 11. Connecting rod; 12. Damping component; 121. Viscoelastic layer; 122. Shear steel plate; 123. Constraining steel plate; 124. Pin shaft; 2. Support rod; 3. Frame beam; 4. Frame column; 5. Rectangular frame; 6. Connecting rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figures 1 to 4, a preferred energy dissipation-frame support structure of the present invention includes a lead viscoelastic damper 1, a support rod 2, a plurality of frame beams 3 and a plurality of frame columns 4, each described The frame beam 3 and each of the frame columns 4 form a rectangular frame 5 with multiple nodes, the support rod 2 is detachably connected to the inner wall of the frame beam 3, the lead viscoelastic damper 1 and the The support rod 2 is detachably connected.

Based on the above technical solution, an energy dissipation-frame support structure in a preferred embodiment of the present invention is mainly composed of a rectangular frame 5 composed of frame beams 3 and frame columns 4, the rectangular frame 5 has a strong plastic deformation capacity, and at the same time , and then a support rod 2 is installed inside the rectangular frame 5 to increase the structural bearing capacity and lateral stiffness. Finally, the lead viscoelastic damper 1 is connected to the support rod 2, and the lead viscoelastic damper 1 is used to shear the lead core. The shear and extrusion deformation energy consumption and the shear hysteretic deformation energy consumption of the viscoelastic material enable the energy dissipation-frame support structure to maintain the rigidity of the main structure through the rectangular frame 5 and the support rod 2 in a large earthquake, and the effective The deformation of the lead viscoelastic damper 1 is used to dissipate the seismic energy input into the structure to protect the safety of the main structure, and the rectangular frame 5 and the support rod 2 can be used as the main structure to increase its lateral stiffness under the action of small earthquakes and wind loads. At the same time, the lead viscoelastic damper 1 can produce shear deformation energy consumption under a small displacement, and has good fatigue resistance under long-term wind load, and has a good energy consumption effect, which can well protect the safety of the main structure; Since the matching installation between the support rod 2 and the lead viscoelastic damper 1 is a detachable connection, the energy dissipation-frame support structure of the present utility model is easy to install in actual engineering, does not affect the building function, and is shock-resistant. Afterwards, it is easy to repair and replace, and is suitable for the field of frame building structure shock absorption and earthquake-resistant structural engineering.

In this embodiment, specifically, as shown in FIG. 1 , the rectangular frame 5 often transmits force to the frame columns 4 and frame beams 3 through its joints when it is stressed, which also makes its joints vulnerable to damage, so , the support rod 2 is designed as a single diagonal support rod, the two ends of the support rod 2 are detachably connected to the two diagonal nodes on the rectangular frame 5, and the support rod 2 is provided with There is an open-type installation part, and the lead viscoelastic damper 1 is detachably connected to the installation part, so that the safety of the main structure can be ensured under the action of external forces (such as earthquakes, wind loads, etc.), It is also possible to effectively utilize the deformation of the lead viscoelastic damper 1 to dissipate the seismic energy input into the structure.

In this embodiment, specifically, as shown in FIG. 2 , the support rod 2 is a herringbone support rod, and the two ends of the support rod 2 are detachable from two adjacent nodes on the rectangular frame 5 respectively. connected, the protruding part of the support rod 2 is fixedly equipped with a connecting rod 6, the two ends of the connecting rod 6 are connected with the lead viscoelastic damper 1, and each of the lead viscoelastic damper 1 One end is detachably connected to the other two adjacent nodes on the rectangular frame 5, and the two nodes are fixed by the support rod 2 to ensure the rigidity of the rectangular frame 5, and one end of each lead viscoelastic damper 1 is respectively It is connected with the other two adjacent nodes on the rectangular frame 5, so that it can ensure the safety of the main structure under the action of external force (such as: earthquake, wind load, etc.), and the lead viscoelastic damper can also be effectively used The deformation of 1 dissipates the seismic energy input into the structure.

In this embodiment, specifically, as shown in FIG. 3 , the support rod 2 is a wall pier type support rod, and the two ends of the support rod 2 are detachably connected to each of the frame beams 3, and the An open mounting portion is provided on the support rod 2, and the lead viscoelastic damper 1 is detachably connected to the mounting portion.

In this embodiment, specifically, as shown in Figures 4 and 5, the lead viscoelastic damper 1 includes a connecting rod 11 and several groups of damping assemblies 12, and the two ends of the damping assemblies 12 are rotatably connected. The above connecting rod 11 enables the lead viscoelastic damper 1 to dissipate energy through the rotation between the connecting rod 11 and the damping assembly 12 when subjected to an external force; the damping assembly 12 includes a viscoelastic layer 121, a shear steel plate 122 , the constraining steel plate 123 and the pin shaft 124, the viscoelastic layer 121 is vulcanized into one with the shearing steel plate 122 and the constraining steel plate 123 respectively, and the viscoelastic layer 121, the shearing steel plate 122 and the constraining steel plate 123 pass through The pin shafts 124 are connected together. The viscoelastic layer 121 includes a plurality of viscoelastic rubber layers and a plurality of thin steel plates, and the plurality of viscoelastic rubber layers and the plurality of thin steel plates are alternately stacked and fixedly connected; mainly so that the lead viscoelastic damper 1 has The performance of lead core shearing, extrusion deformation energy dissipation and shear hysteretic deformation energy dissipation of viscoelastic materials. The lead viscoelastic damper 1 is preferably a lead viscoelastic damper or a common viscoelastic damper; the lead viscoelastic damper also includes a lead core and a lead core cover, and the lead core is formed from the viscoelastic layer. A hole is reserved for inserting, and the lead core cover is connected with the restraining steel plate 123 by bolts, which ensures the shearing and extrusion deformation energy consumption of the lead core of the lead viscoelastic damper 1 and the shearing of the viscoelastic material. Hysteretic deformation energy consumption; as shown in Figures 6 and 7, multiple damping components 12 can also be designed as composite lead viscoelastic dampers, for example: multiple damping components form a quadrilateral through connecting rods. Viscoelastic dampers, or multiple quadrilateral dampers, lead viscoelastic dampers of the second type, etc.

In summary, the energy dissipation-frame support structure of the present utility model mainly consists of a rectangular frame 5 composed of frame beams 3 and frame columns 4. A support rod 2 is installed inside to enhance the structural bearing capacity and lateral rigidity. Finally, the lead viscoelastic damper 1 is connected to the support rod 2, and the shearing and extrusion deformation loss of the lead core of the lead viscoelastic damper 1 is utilized energy and the shear hysteretic deformation energy dissipation of viscoelastic materials, so that the energy dissipation-frame support structure can maintain the rigidity of the main structure through the rectangular frame 5 and the support rod 2 in a large earthquake, and effectively use the lead viscoelastic damper The deformation of 1 dissipates the seismic energy input into the structure to protect the safety of the main structure, and under the action of small earthquakes and wind loads, the rectangular frame 5 and the support rod 2 can be used as the main structure to increase its lateral stiffness. At the same time, the lead viscoelastic damping The device 1 can produce shear deformation energy consumption under a small displacement, and has good fatigue resistance under long-term wind loads, and has a good energy consumption effect, which can well protect the safety of the main structure; because the support rod 2 and the lead The coordinated installation between the viscoelastic dampers 1 is detachable connection, therefore, the energy dissipation-frame support structure of the present utility model is easy to install in actual engineering, does not affect the building function, and is easy to repair and replace after the earthquake. It is suitable for the fields of shock absorption of frame building structures and anti-seismic structural engineering.

The above is a preferred embodiment of the present utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, some improvements and deformations can also be made, these improvements and deformations It is also regarded as the protection scope of the present utility model.

Claims (8)

1. an energy dissipation-frame support structure, is characterized in that, comprises lead viscoelastic damper, support bar, a plurality of frame beams and a plurality of frame columns, each described frame beam and each described frame column form a structure with multiple a rectangular frame with two nodes, the support rod is detachably connected to the inner wall of the frame beam, and the lead viscoelastic damper is detachably connected to the support rod; the lead viscoelastic damper includes a connecting rod and several connecting rods A set of damping components, the connecting rods are rotatably connected to both ends of the damping components. 2. The energy dissipation-frame support structure as claimed in claim 1, wherein the support rod is a single-bracing type support rod, and the two ends of the support rod are respectively connected to the two opposite ends of the rectangular frame. The corner joints are detachably connected, and an open mounting part is provided on the support rod, and the lead viscoelastic damper is detachably connected to the mounting part. 3. The energy dissipation-frame support structure according to claim 1, wherein the support rod is a herringbone support rod, and the two ends of the support rod are respectively adjacent to two adjacent ones on the rectangular frame. The nodes are detachably connected, and a connecting rod is fixedly installed on the raised part of the support rod, and the two ends of the connecting rod are connected with the lead viscoelastic damper, and one end of each lead viscoelastic damper is respectively It is detachably connected with the other two adjacent nodes on the rectangular frame. 4. The energy dissipation-frame support structure according to claim 1, wherein the support rod is a wall pier type support rod, and the two ends of the support rod are respectively detachably connected to each of the frame beams, In addition, an opening-shaped installation part is provided on the support rod, and the lead viscoelastic damper is detachably connected to the installation part. 5. The energy dissipation-frame support structure as claimed in claim 1, wherein the damping assembly comprises a viscoelastic layer, a shear steel plate, a restraint steel plate and a pin shaft, and the viscoelastic layer is respectively connected to the shear The steel plate and the constraining steel plate are vulcanized into one, and the viscoelastic layer, the shearing steel plate and the constraining steel plate are connected together through the pin. 6. The energy dissipation-frame support structure as claimed in claim 5, wherein the viscoelastic layer comprises a plurality of viscoelastic rubber layers and a plurality of thin steel plates, and a plurality of viscoelastic rubber layers and a plurality of the viscoelastic rubber layers The thin steel plates are alternately stacked and fixedly connected. 7. The energy dissipation-frame support structure according to any one of claims 1 to 6, wherein the lead viscoelastic damper is a lead viscoelastic damper or a common viscoelastic damper. 8. The energy dissipation-frame support structure according to claim 7, wherein the lead viscoelastic damper further comprises a lead core and a lead core cover, and the lead core is removed from the reserved portion of the viscoelastic layer. The hole is inserted into the hole, and the lead core cover is connected with the constraint steel plate through bolts.