Plate-integrated vibration dampers for reinforced concrete components
By integrating absorber bodies with profiled surfaces and channels in reinforced concrete slabs, the system addresses inefficiencies of existing damping systems, achieving reduced mass and enhanced vibration damping with adaptable counter-vibrations for extended structural durability.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-04-02
AI Technical Summary
Existing vibration damping systems for reinforced concrete structures are bulky and complex, requiring external additions or replacements, which are inefficient and space-consuming.
Incorporating absorber bodies with profiled surfaces and backflow properties into reinforced concrete slabs, interconnected via channels, filled with a medium that generates counter-vibrations to dampen external vibrations, allowing for adjustable fill levels and integration with existing hollow bodies.
Reduces structural mass, provides effective vibration damping, and extends the service life of structures by mitigating the effects of vibrations, while enabling material savings and adaptability over time.
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Abstract
Description
Technical field
[0001] The invention primarily relates to structures with reinforced concrete slab elements, such as high-rise buildings or bridges. In particular, it relates to structures subject to high vibrations of any kind. Current state of the art
[0002] Currently, vibration damping systems are predominantly used in construction. These are either added externally (for example, mass absorbers) or replace other components (such as rubber mounts). These are often very space-consuming and complex to design. Description of the invention
[0003] The invention aims to reduce vibrations in structural components, thereby making them more stable against impacts such as earthquakes. To achieve this, absorber bodies are first filled to a certain level with a medium exhibiting backflow properties. The bodies have a profiled surface for optimized flow. These are then distributed across the surface of the slab element and encased in concrete. Furthermore, the bodies are interconnected via channels, allowing for subsequent adjustments to the fill level. Suitable examples include commercially available displacement bodies for reinforced concrete slabs.
[0004] This reduces the mass of the plate, and the medium creates a counter-vibration in the event of an external vibration, which dampens it. These counter-vibrations can also be regulated over the building's lifetime, depending on the measured natural frequencies.
[0005] Furthermore, it is possible, if necessary, to adapt existing hollow bodies in solid components to this system.
[0006] Precise data, such as the shape / size of the body, internal design for flow optimization and specific medium, will be determined in further research. Objective of the invention
[0007] The invention reduces the effects on the load-bearing structure of buildings or structures that are subject to vibrations caused by internal or external influences. This results in potential material savings and an extended service life of the structure during fatigue processes. Legend for the concept drawing: 1 Reinforcement 2 absorber bodies 3 Airspace 4 Medium 5 Structure for flow optimization 6 connection channel 7 Vibration forces 8 Counter-vibration forces
Claims
[1] To implement a vibration damper in buildings by means of hollow bodies embedded in concrete characterized by that the hollow bodies are partially filled with a viscous medium. [2] Vibration damper according to claim 1 characterized by that the mode of action can be varied by the filling medium and the filling height, as well as the number and distribution of the hollow bodies in the structure. [3] Vibration damper according to claim 1 characterized by that the hollow bodies have the shape of commercially available displacement bodies. [4] Vibration damper according to claim 1 characterized by that the hollow bodies are smooth on their inside, or are provided with flow-optimizing internal components / structures. [5] Vibration damper according to claim 1 characterized by that the hollow bodies are connected to each other in such a way that the fill level can be adjusted even when installed. [6] Vibration damper according to claim 1 characterized by, that existing components with similarly shaped displacement bodies can be retrofitted into vibration dampers by filling them with a medium.