A modular rubber seismic isolation bearing for container buildings

Abstract

This invention provides a modular container building rubber seismic isolation bearing, belonging to the field of building seismic isolation technology. The invention includes a rubber bearing assembly, an adapter module and an adjustable limiting device, container column corner fittings, a foundation, an upper connecting plate and a lower connecting plate of the rubber bearing assembly, and an adjustable limiting device. It improves energy dissipation efficiency through the composite of high-damping rubber and a cross-shaped lead core; the adapter module matches the container corner fittings for rapid installation; and the limiting device controls the horizontal displacement threshold. This invention solves the problems of poor adaptability and complex construction of traditional bearings, significantly improving the seismic safety and economy of modular buildings.

Description

Technical Field

[0001] This utility model relates to the field of building seismic isolation technology, and in particular to a rubber seismic isolation bearing for container modular buildings, which is suitable for improving the seismic performance of lightweight modular structures. Background Technology

[0002] With the rapid adoption of modular container buildings in fields such as data centers, their weak seismic performance has become increasingly prominent. Traditional rubber seismic isolation bearings, due to their large size and poor adaptability, are difficult to match the lightweight structure and industrialized construction requirements of containers. Furthermore, rigid connections between modules can easily lead to concentrated energy transmission during earthquakes, threatening building safety. To address this, this invention, targeting the characteristics of modular container systems, integrates high-damping rubber composite materials with modular design. By optimizing the bearing structure to match container corner fittings and integrating cross-shaped lead-core energy-dissipating elements to improve horizontal deformation capacity (≥250%), it achieves "plug-and-play" installation and efficient energy dissipation. This solves the core pain points of traditional technologies, such as complex construction and low seismic efficiency, thereby promoting the safe application of modular container buildings in high-intensity earthquake zones. Summary of the Invention

[0003] To address the above technical problems, this utility model provides a modular rubber seismic isolation bearing for container buildings.

[0004] The technical solution of this utility model is: A rubber seismic isolation bearing for a modular container building includes: Container column corner fittings (10); Basic (9); Rubber bearing assembly: It is made of alternating layers of high-damping rubber body (1) and fiber-reinforced layer (2), with lead core (3) running through it. Upper connecting plate (4): fixed to the top of the rubber support assembly, and equipped with a single-sided cone (6) and connecting plate screw (8) that match the container column corner piece (10). Lower connecting plate (5): fixed to the bottom of the rubber bearing assembly and connected to the foundation (9) by pre-embedded anchor bolts (9a); Adjustable limiting device (7): symmetrically distributed around the rubber support assembly, including limiting screw (7a), limiting baffle (7b), fixing plate (7c) and locking nut (7d), used to control the horizontal displacement threshold.

[0005] Furthermore, The single-sided cone (6) is an elliptical cone with dimensions matching the bottom opening of the container column corner fitting (10). A connecting plate screw (8) is also provided on the single-sided cone (6) and connected to its bottom. The connecting plate screw (8) is equipped with a washer (8a) and a nut (8b) to fix the container column corner fitting (10).

[0006] Furthermore, The lead core (3) has a cross-shaped cross section with a horizontal and vertical dimension of 50mm×50mm, and is welded and fixed to the upper connecting plate (4) and the lower connecting plate (5).

[0007] Furthermore, The end of the limiting screw (7a) of the adjustable limiting device (7) passes through the fixing plate (7c) and is fitted with a circular steel plate to ensure that the limiting screw (7a) can rotate freely. The limiting screw (7a) and the fixing plate (7c) are threadedly connected.

[0008] An opening is provided on the limiting baffle (7b), and the end of the opening is enlarged to match the circular steel plate at the end of the limiting screw (7a). The position of the limiting baffle (7b) can be controlled by adjusting the rotating limiting screw (7a) and the locking nut (7d), and the adjustment range is 50-150mm.

[0009] Furthermore, Four adjustable limiting devices (7) are provided and are respectively set on the four sides of the upper surface of the lower connecting plate (5); the lower part of the fixed plate (7c) is fixedly connected to the lower connecting plate (5) to control the movement of the limiting baffle (7b) relative to the fixed plate (7c) on the upper surface of the lower connecting plate (5).

[0010] The beneficial effects of this utility model are: Highly adaptable: The single-sided cone fits seamlessly with container corner fittings, reducing installation time by 60% compared to traditional supports; High-efficiency energy dissipation: The synergistic effect of the cross-shaped lead core and layered rubber increases the seismic energy dissipation rate by 30%-40%; Displacement is controllable: The limit device can be adjusted on-site to adapt to different fortification intensity requirements (e.g., 80mm limit in 7-degree zone, 100mm limit in 8-degree zone). Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall external structure of this utility model; Figure 2 This is an exploded view of this utility model; Figure 3 This is a schematic diagram of the adjustable limiting device of this utility model. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0013] This utility model discloses a rubber seismic isolation bearing for a modular container building, comprising a rubber bearing assembly, an upper connecting plate (4), a lower connecting plate (5), and an adjustable limiting device (7), specifically including: Rubber bearing assembly: high-damping rubber body (1) and nylon fiber layer (2) are alternately vulcanized (single layer rubber thickness 12mm, fiber layer thickness 2mm), with a cross-shaped lead core (3) embedded inside. The lead core is welded to the upper and lower connecting plates. The vertical bearing capacity is ≥800kN and the equivalent damping ratio is ≥18%. Upper connecting plate (4): A single-sided cone (6) and a Φ30mm connecting plate screw (8) are set on the surface of the steel plate (thickness 30mm) to match the bottom opening of the container column corner piece (10) and are locked by a gasket (8a) and a nut (8b); Lower connecting plate (5): The steel plate (thickness 30mm) is provided with 4 sets of Φ30mm bolt holes, which are connected to the pre-embedded anchor bolts (9a) of the foundation (9); Adjustable limiting device (7): Four sets are symmetrically arranged. The limiting screw (7a) is rotated by the fixed plate (7c) to drive the limiting baffle (7b) to move closer to or away from the rubber support in sync. After the position is determined, it is fixed by the locking nut (7d). The fixed plate (7c) is welded to the lower connecting plate (5) at the factory.

[0014] Component prefabrication: The rubber bearing assembly is vulcanized and molded, and the lead core (3) is welded to the upper and lower connecting plates; On-site construction: Connect the lower connecting plate (5) to the pre-embedded anchor bolt (9a) of the foundation (9); When hoisting the container, insert the single-sided cone (6) of the upper connecting plate (4) and the connecting plate screw (8) into the bottom hole of the column corner piece (10) and quickly lock it in place with the gasket (8a) and nut (8b); The limiting screw (7a) and locking nut (7d) of the rotating limiting device (7) are used to adjust the distance between the baffle (7b) and the rubber support to the design threshold.

[0015] The above description is merely a preferred embodiment of this utility model and is only used to illustrate the technical solution of this utility model. It is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A modular container building rubber seismic isolation bearing, characterized in that, include: Container column corner fittings (10); Basic (9); Rubber bearing assembly: It is made of alternating layers of high-damping rubber body (1) and fiber reinforcement layer (2), with lead core (3) running through it. Upper connecting plate (4): fixed to the top of the rubber support assembly, and equipped with a single-sided cone (6) and connecting plate screw (8) that match the container column corner piece (10). Lower connecting plate (5): fixed to the bottom of the rubber bearing assembly and connected to the foundation (9) by pre-embedded anchor bolts (9a); Adjustable limiting device (7): symmetrically distributed around the rubber support assembly, including limiting screw (7a), limiting baffle (7b), fixing plate (7c) and locking nut (7d), used to control the horizontal displacement threshold.

2. The rubber seismic isolation bearing according to claim 1, characterized in that, The single-sided cone (6) is an elliptical cone with dimensions matching the bottom opening of the container column corner fitting (10). A connecting plate screw (8) is also provided on the single-sided cone (6) and connected to its bottom. The connecting plate screw (8) is equipped with a washer (8a) and a nut (8b) to fix the container column corner fitting (10).

3. The rubber seismic isolation bearing according to claim 1, characterized in that, The lead core (3) has a cross-shaped cross section, and its upper and lower ends are welded and fixed to the upper connecting plate (4) and the lower connecting plate (5) respectively.

4. The rubber seismic isolation bearing according to claim 1, characterized in that, The adjustable limiting device (7) has a limiting screw (7a) with a circular steel plate after the end passes through the fixed plate (7c) to ensure that the limiting screw (7a) can rotate freely. The limiting screw (7a) and the fixed plate (7c) are threadedly connected. An opening is provided on the limiting baffle (7b), and the end of the opening is enlarged to match the circular steel plate at the end of the limiting screw (7a). The position of the limiting baffle (7b) is controlled by adjusting the rotating limiting screw (7a) and the locking nut (7d).

5. The rubber seismic isolation bearing according to claim 4, characterized in that, Four adjustable limiting devices (7) are provided and are respectively set on the four sides of the upper surface of the lower connecting plate (5); the lower part of the fixed plate (7c) is fixedly connected to the lower connecting plate (5) to control the movement of the limiting baffle (7b) relative to the fixed plate (7c) on the upper surface of the lower connecting plate (5).

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