Internal Damping Means for Structural Energy Dissipation
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Solution Overview
Problem
Existing structural damping systems face challenges such as space allocation limitations, premature stress and strain, inability to inspect or replace components, and inadequate quality assurance, which restrict architectural flexibility and effectiveness in energy dissipation.
Innovation Solution
The implementation of resisting elements with a damping means within structural elements, allowing for controlled engagement and disengagement of damping functions, enabling installation, removal, and inspection, and ensuring energy dissipation through a damped constrained length portion connected via a damping means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If an energy dissipating means comprises an element that requires a space allocation beyond the extent of the structural elements, then the energy dissipation capacity is improved, but the architectural layout and function are limited and valuable architecture is sacrificed
Solution Approach 1:
The energy dissipating apparatus is nested within the structural element itself. The damping means is positioned inside a cavity formed within the structural element, allowing the energy dissipation function to be integrated into the existing structural volume without requiring additional external space. This resolves the contradiction by providing energy dissipation capacity while preserving architectural layout and function.
Solution Approach 2:
The invention transitions from external energy dissipation devices to internal integration by creating a cavity within the structural element. This dimensional reorganization allows the damping means to occupy space that would otherwise be unused or non-structural, thereby improving energy dissipation without encroaching on functional architectural space.
2Loss of energy
If an energy dissipating means comprises an apparatus that is constructed within a structural element in such a way that the energy dissipating means is immediately engaged in its force-transmitting and energy dissipating function with the completed structural element, then the energy dissipation is activated, but premature, unexpected or undesirable stress and strain occur in the energy dissipating means
Solution Approach 1:
The system transitions from a static, immediately engaged state to a dynamic, controllable engagement state. The detachable connection means allows the energy dissipating means to be installed within the structural element but remains disengaged until needed. This dynamic capability enables activation only when required, preventing premature stress and strain while maintaining reliability.
Solution Approach 2:
The energy dissipating means is pre-installed within the structural element during construction, but the force-transmitting engagement is delayed until a predetermined condition occurs. This preliminary positioning without immediate engagement allows the system to be ready for rapid activation while avoiding unwanted stress and strain during the construction and initial service periods.
3Stability of the object's composition
If an energy dissipating means comprises an apparatus that is constructed within a structural element in such a way that does not permit its removal and replacement at any time, then the structural integrity is maintained, but there is no way to modify or inspect the energy dissipating means after its installation
Solution Approach 1:
The energy dissipating means is divided into separable components: the damping means and the connection means. The detachable connection means allows the damping means to be removed and replaced independently from the structural element, enabling inspection and maintenance while preserving the overall structural integrity through proper reconnection procedures.
Solution Approach 2:
The connection between the energy dissipating means and the structural element transitions from permanent to temporary and reversible. The detachable connection means enables dynamic reconfiguration, allowing the damping means to be installed, inspected, replaced, or removed as needed, while maintaining structural integrity during both engaged and disengaged states.
4Ease of manufacture
If an energy dissipating means comprises an apparatus with an energy dissipation material means that is installed in-situ at a construction site, then the installation is completed, but adequate quality assurance measures may not be possible
Solution Approach 1:
The damping means is manufactured and prepared outside the structural element at a controlled facility where quality assurance can be properly implemented. The pre-fabricated damping means is then installed into the structural element at the construction site through the detachable connection means, combining the benefits of controlled manufacturing with flexible installation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances energy dissipation capacity while maintaining architectural flexibility, allowing for controlled and effective energy dissipation without encroaching on structural space, and enabling inspection and replacement of damping components as needed.
Implementation Method 1
The damping means is provided with means to both facilitate relative movement between the resisting element and the structural element and to dissipate the energy causing such movement
Data Source
AI summary
According to one embodiment, the energy dissipation of a structural element is increased by inserting one or more resisting elements into the structural element at any time during or after construction of the structural element. The continuous resisting elements are rigidly attached to the structural at one end and connected to the structural element by and through a damping material over at least a portion of its length. When a dynamic force is applied to the structural elements, such as may result from wind or earthquakes, there will be a strain in the structure, in a direction parallel with the longitudinal direction of the resisting elements. In this way, the forces and deformations within the structure will result in a relative motion between the structural element and resisting element, a substantial portion of which is ultimately transmitted by and through the damping material layer. In transmitting such a force and movement through the damping material layer, a portion of the energy associated with such force and movement is dissipated.