CN219825683U

CN219825683U - Shock insulation layer limiter

Info

Publication number: CN219825683U
Application number: CN202222833121.7U
Authority: CN
Inventors: 张龙飞; 余文正; 兰香; 吴克川; 孙柏锋; 王博; 万云华; 陈丁刚
Original assignee: Kunming University
Current assignee: Kunming University
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-10-13
Anticipated expiration: 2032-10-26

Abstract

The shock insulation layer limiter comprises an upper sliding limit seat, a lower sliding limit seat and an energy dissipation core rod, wherein the energy dissipation core rod is arranged between the upper sliding limit seat and the lower sliding limit seat in a sliding manner, and the upper sliding limit seat and the lower sliding limit seat are in a space vertical state; the upper sliding limit seat and the lower sliding limit seat comprise sliding energy consumption tracks, end limit plates are fixed on two sides of the sliding energy consumption tracks, connecting plates are fixed on one sides of the end limit plates, bolt holes are formed in the connecting plates, inclined supporting plates are fixed on two sides of the end limit plates, the sliding energy consumption tracks are provided with sliding energy consumption seats, the sliding energy consumption seats can slide on the sliding energy consumption tracks, and energy consumption core rods are fixed on the sliding energy consumption seats. The limiter can consume energy in two directions in stages, and reduce the use of shock absorbing components; the limiter can slide and consume energy in small earthquake, can yield and consume energy in medium and large earthquake, realizes that maintenance is not needed in small earthquake, and can complete maintenance work after the assembly is replaced after the large earthquake.

Description

Shock insulation layer limiter

Technical Field

The utility model relates to the technical field of building seismic reduction and isolation, in particular to a seismic isolation layer limiter.

Background

A vibration isolation device (or system) is arranged between a building foundation and an upper structure to form a vibration isolation layer, a house structure is isolated from the foundation, and the vibration isolation device is used for isolating or dissipating the vibration energy so as to avoid or reduce the transmission of the vibration energy to the upper structure, so that the earthquake reaction of the building is reduced, and the building is prevented from being damaged or collapsing under the earthquake action.

At present, most of the vibration isolation technologies only use rubber vibration isolation supports for vibration isolation, and a small amount of vibration isolation buildings use viscous dampers or bending type mild steel dampers to consume seismic energy when using the rubber vibration isolation supports, so that the purpose of limiting the displacement of a vibration isolation layer is achieved. The vibration isolation of the rubber support or the vibration isolation mode of combining the vibration isolation support and the damper can only ensure that the displacement does not exceed the safety limit value under small, medium and large vibration, and the energy consumption components such as the viscous damper and the like can only consume energy unidirectionally, so that limit energy consumption cannot be carried out bidirectionally when facing complex earthquake, and the safety reserve is obviously insufficient especially when encountering ultra-strong earthquake or ultra-large earthquake. Because the bending type mild steel damper and the viscous damper cannot consume energy in stages, and the bending type mild steel damper yields under small shock, the bending type mild steel damper yielding after shock is replaced, so that the subsequent maintenance cost is increased; although the spherical hinge support can consume energy in two directions, the horizontal deformation of the spherical hinge support cannot adapt to the large deformation of the shock insulation layer, the spherical hinge support is high in manufacturing precision and manufacturing cost, meanwhile, the surface abrasion speed of the spherical body in work is high, and the later maintenance cost is high.

Disclosure of Invention

In order to solve the problems, the utility model designs the shock insulation layer limiter, and the limiter can be changed into a stage type, two-way energy consumption is realized, and the use of shock absorption components is reduced; the limiter can slide and consume energy in small earthquake, can yield and consume energy in medium and large earthquake, realizes that the small earthquake does not need maintenance, and can complete post-earthquake maintenance work by replacing components after the large earthquake.

In order to achieve the technical effects, the utility model is realized by the following technical scheme:

the shock insulation layer limiter comprises an upper sliding limiting seat, a lower sliding limiting seat and an energy dissipation core rod, wherein the energy dissipation core rod is arranged between the upper sliding limiting seat and the lower sliding limiting seat in a sliding manner, and the upper sliding limiting seat and the lower sliding limiting seat are in a space vertical state;

the upper sliding limit seat and the lower sliding limit seat comprise sliding energy consumption tracks, end limit plates are fixed on two sides of the sliding energy consumption tracks, connecting plates are fixed on one sides of the end limit plates, bolt holes are formed in the connecting plates, stiffening inclined supporting plates are fixed on two sides of the end limit plates, the sliding energy consumption tracks are provided with sliding energy consumption seats, the sliding energy consumption seats can slide on the sliding energy consumption tracks, and energy consumption core rods are fixed on the sliding energy consumption seats.

Furthermore, the sliding energy consumption track is an I-shaped steel plate, and the sliding energy consumption seat is included on the sliding energy consumption track.

Furthermore, the energy consumption core rod consists of variable cross section cylinders at two sides and a constant cross section cylinder at the center, and the diameter of the variable cross section cylinder is gradually reduced to be equal in diameter along the direction of the constant cross section cylinder.

Furthermore, the energy-dissipating core rod is made of Q225 steel.

The beneficial effects of the utility model are as follows: the limiter can consume energy in two directions in stages, and reduce the use of shock absorbing components; the limiter can slide to consume energy in two directions during small, medium and large shocks, so that the small, medium and large shocks are not required to be maintained, the energy-consuming core rod is yielding and consumes energy and simultaneously limits the horizontal displacement of the shock insulation layer during the super large shocks, the structure is prevented from overturning caused by overlarge deformation of the shock insulation layer, the components are replaced after the super large shocks, and the post-shock maintenance work can be completed, so that the replacement is simple and the maintenance cost is low.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other 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 an assembled structure of a shock insulation layer limiter;

FIG. 2 is a schematic diagram of the composition of the shock insulation layer limiter;

FIG. 3 is a schematic structural view of the dissipative core rod.

In the drawings, the list of components represented by the various numbers is as follows:

1-an upper sliding limit seat, 2-a lower sliding limit seat, 3-an energy consumption core rod, 21-a sliding energy consumption track and 22-a sliding energy consumption seat, 23-end limiting plates, 24-connecting plates, 25-stiffening inclined supporting plates, 31-variable cross section cylinders and 32-constant cross section cylinders.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, the shock insulation layer limiter comprises an upper sliding limit seat 1, a lower sliding limit seat 2 and an energy dissipation core rod 3, wherein the energy dissipation core rod 3 is slidably arranged between the upper sliding limit seat 1 and the lower sliding limit seat 2, and the upper sliding limit seat 1 and the lower sliding limit seat 2 are in a space vertical state;

as shown in fig. 2, the upper sliding limit seat 1 and the lower sliding limit seat 2 comprise a sliding energy consumption rail 21, two sides of the sliding energy consumption rail 21 are welded with end limit plates 23, one side of each end limit plate 23 is welded with a connecting plate, a connecting plate 24 is provided with a bolt hole, two sides of each end limit plate 23 are welded with stiffening inclined support plates 25, the sliding energy consumption rail 21 is provided with a sliding energy consumption seat 22, the sliding energy consumption seat 22 can slide on the sliding energy consumption rail 21, and the energy consumption core rods 3 are welded on the sliding energy consumption seat 22.

In this embodiment, the sliding energy consumption rail 21 is an i-shaped steel plate, and the sliding energy consumption seat 22 is included on the sliding energy consumption rail 21.

As shown in fig. 3, the energy dissipation mandrel 3 is composed of a variable cross-section cylinder 31 and a central constant cross-section cylinder 32, the diameter of the variable cross-section cylinder 31 gradually decreases toward the constant cross-section cylinder 32 until the diameters are equal, and the structure that the two ends taper toward the center is convenient for the constant cross-section cylinder 32 of the central section to enter the yielding energy dissipation state more easily.

In this embodiment, the energy-dissipating mandrel is Q225 steel.

The working principle of the device is as follows: the connecting plates 24 of the upper sliding limiting seat 1 and the lower sliding limiting seat 2 are respectively connected with the upper part and the buttresses of the building components through foundation bolts penetrating through the bolt holes, when small shock occurs, the sliding energy consumption seats 22 welded at the two ends of the energy consumption core rod 3 can respectively consume energy in a sliding manner on the sliding energy consumption rails 21 of the upper sliding limiting seat 1 and the lower sliding limiting seat 2, the limiter enters a first energy consumption stage, the sliding manner can allow the building components to horizontally and longitudinally displace by a small margin, horizontal shearing damage of the building components is prevented, and meanwhile, the whole structure of the limiter is still intact. When the intensity of the earthquake becomes large, the limiter enters a second energy dissipation stage, the second energy dissipation stage mainly takes the yield energy dissipation of the energy dissipation core rod 3 as a main part, the energy dissipation is carried out through the yield damage of the energy dissipation core rod 3 in the stage, after the intensity of the earthquake becomes large, the horizontal transverse or longitudinal displacement of the sliding energy dissipation seats 22 at the two ends of the energy dissipation core rod 3 becomes large, the displacement is enough to enable the sliding energy dissipation seats 22 to slide to the end limiting plates 23, the sliding energy dissipation seats 22 at the upper end or the lower end of the energy dissipation core rod 3 are abutted against the end limiting plates 23, at the moment, the sliding energy dissipation seats 22 cannot slide, the constant-section cylinder 32 at the center of the energy dissipation core rod 3 is subjected to yield under the action of the shearing force of earthquake waves, at the moment, the earthquake energy is further consumed through the yield of the energy dissipation core rod 3, and the aim of staged and bidirectional energy dissipation is achieved. After the vibration, the maintenance of the limiter can be completed by replacing the energy consumption core rod, and the maintenance cost is lower.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. The shock insulation layer limiter is characterized by comprising an upper sliding limiting seat, a lower sliding limiting seat and an energy dissipation core rod, wherein the energy dissipation core rod is arranged between the upper sliding limiting seat and the lower sliding limiting seat in a sliding manner, and the upper sliding limiting seat and the lower sliding limiting seat are in a space vertical state;

2. The shock insulation layer limiter of claim 1, wherein the sliding energy consumption rail is an i-shaped steel plate, and the sliding energy consumption seat is included on the sliding energy consumption rail.

3. The shock insulation layer limiter according to claim 1, wherein the energy dissipation core rod is composed of variable cross section cylinders on two sides and a constant cross section cylinder in the center, and the straight radial constant cross section cylinder direction of the variable cross section cylinder is gradually reduced until the diameters are equal.

4. A shock insulation layer limiter according to claim 1 or claim 3 wherein the dissipative core rod is of Q225 steel.