dissipator
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Solution Overview
Problem
Current seismic dissipators for structures like shelving units are inadequate in energy dissipation and movement control, especially during major seismic events, leading to potential collapse and economic unviability, and lack a locking mechanism for static conditions, compromising safety and operational modes.
Innovation Solution
A dissipator with a rod-like dissipation body and a fuse-equipped device that allows controlled movement and energy dissipation, featuring a tipping prevention mechanism, enabling effective seismic resistance and stability under both seismic and static conditions, while maintaining low production costs and simplicity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the device allows greater movements during major seismic events, then the energy dissipation capacity increases, but the encumbrances increase and economic viability decreases
Solution Approach 1:
The dissipator is divided into distinct functional segments: a supporting base fixed to ground, a contact base associated with the supporting structure, and interface means connecting them. This segmentation allows each component to be optimized independently for its specific function while maintaining overall system efficiency.
Solution Approach 2:
The interface means provide dynamic movement control, allowing the contact base to move relative to the supporting base in controlled directions parallel to the ground. This dynamic capability enables the device to adapt to varying seismic intensities without requiring excessive structural encumbrance.
2Loss of energy
If the device allows greater movements during major seismic events, then the energy dissipation capacity increases, but the production cost increases
Solution Approach 1:
Different portions of the dissipator have specialized properties tailored to their functions: the supporting base provides stable ground anchoring, the contact base interfaces with the supporting structure, and the interface means provide controlled movement. This local specialization allows cost-effective manufacturing by optimizing each component for its specific role.
Solution Approach 2:
The interface means serve multiple functions simultaneously: they allow controlled movement in directions parallel to the ground for energy dissipation, provides locking under static conditions, and prevent tipping. This multi-functionality reduces the need for separate components, lowering production costs.
3Reliability
If the device provides locking under static conditions, then safety conditions improve, but the device complexity increases
Solution Approach 1:
The dissipator exhibits dynamic behavior that adapts to loading conditions: under static conditions, the interface means provide locking to ensure safety, while under seismic conditions, they allow controlled movement for energy dissipation. This dynamic adaptability achieves multiple safety functions without proportionally increasing device complexity.
4Stability of the object's composition
If the device prevents tipping during seismic events, then structural integrity improves, but the movement control complexity increases
Solution Approach 1:
The dissipator geometry and interface means are designed to counteract tipping forces during seismic events. The supporting base and contact base arrangement creates a stable configuration that resists rotational movement while maintaining the ability to dissipate energy through controlled translation.
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
The dissipator significantly enhances energy dissipation capacity and provides stable locking under static conditions, preventing structure collapse and tipping, ensuring safety and operational integrity during seismic events while maintaining economic viability.
Implementation Method 1
at least one rod-like dissipation body (20) that acts between the ground (100) and the supporting structure (2), with at least partially a behavior of the dissipative type
Implementation Method 2
the dissipator (1) comprises at least one rod-like dissipation body (20) that acts between the ground (100) and the supporting structure (2), with at least partially a behavior of the dissipative type
Implementation Method 3
a device of the fuse-equipped type (30) connecting the ground (100) and the supporting structure (2), wherein the device of the fuse-equipped type (30) is adapted to prevent the relative movements between the contact base (4) and the supporting base (3) below a preset stress threshold value
Implementation Method 4
interface means (10) are provided, which are adapted to allow the movement of the contact base (4) with respect to the supporting base (3) at least along two directions that are parallel to the ground (100)
Implementation Method 5
Another object of the present invention is to prevent the tipping of the structures, so as to prevent the stored goods from being thrown and, at the same time, to prevent the collapse of supporting structures, and in particular of industrial shelving, as a result of static and seismic actions
Data Source
AI summary
A dissipator for interfacing between the ground and supporting structures, which comprises a supporting base that can be fixed to the ground and supports a contact base that can be associated, by way of kinematic connection elements, with a supporting structure, interface elements being provided between the contact base and the supporting base and being adapted to allow the movement of the contact base with respect to the supporting base at least along two directions that are parallel to the ground, control elements being further provided which act between the supporting base and the contact base and are adapted to control the relative movement between the supporting base and the contact base; the dissipator comprises at least one rod-like dissipation body that acts between the ground and the supporting structure, the rod-like dissipation body having at least partially a behavior of the dissipative type.