Modular Graded Damper for Wind and Multi-Level Earthquake Dissipation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dampers for high-rise buildings struggle with unclear yielding points, inability to dissipate energy under wind vibration, and complex structures, limiting their effectiveness in resisting wind-induced vibrations and various seismic events.
Innovation Solution
A modular graded energy-dissipation damper with distinct energy dissipation components for wind vibration, frequent, moderate, and mega earthquakes, featuring interchangeable and adjustable modules for tailored seismic and wind resistance, including X-shaped and triangular plates with viscoelastic layers and shear key slots for phased energy dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multi-level graded yielding dampers are applied to achieve phased yielding under different seismic levels, then energy dissipation capability under earthquakes is improved, but the structure becomes complex and the yielding point becomes unclear
Solution Approach 1:
The damper is divided into multiple independent energy dissipation components (first, second, third, and fourth components) that can function separately. Each component corresponds to a specific seismic level and yields independently, providing clear yielding points while maintaining modular simplicity in the overall structure.
2Reliability
If traditional dampers are designed for seismic resistance, then earthquake energy dissipation is improved, but the ability to dissipate energy under wind vibration is lost
Solution Approach 1:
The damper design integrates multiple energy dissipation components that can function under different loading conditions. The first energy dissipation component handles wind vibrations through elastic deformation, while the second, third, and fourth components engage during seismic events, allowing a single device to serve both wind and earthquake protection functions.
3Reliability
If the structure is made more complex to achieve clear yielding points and multi-level energy dissipation, then energy dissipation effectiveness is improved, but manufacturing and maintenance difficulty increases
Solution Approach 1:
The damper consists of four distinct energy dissipation components that can be manufactured independently using standard fabrication processes. Each component is a separate structural element with defined yielding characteristics, allowing for simplified manufacturing, assembly, and potential replacement of individual components without affecting the entire system.
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 damper provides clear yielding points for different seismic levels, integrates wind resistance with seismic mitigation, and allows for modular replacement and adjustment of components for improved economic efficiency and adaptability.
Implementation Method 1
a viscoelastic layer connected between the corresponding overlapping surfaces of the outer plate and the inner plate
Data Source
AI summary
A modular graded energy-dissipation damper for resisting wind vibration and frequent, moderate, rare, and mega earthquakes includes an upper baseplate and a lower baseplate, where frequent earthquake energy dissipation components, moderate earthquake energy dissipation components, rare earthquake energy dissipation components and mega earthquake energy dissipation components are sequentially provided between the upper baseplate and the lower baseplate from the two ends to the middle; and further including wind vibration energy dissipation components provided between the upper baseplate and the lower baseplate and located at the two sides of the energy dissipation components, where the wind vibration energy dissipation component include an outer plate and an inner plate arranged at an interval and connected with the upper baseplate and the lower baseplate respectively, and a viscoelastic layer connected between the corresponding overlapping surfaces of the outer plate and the inner plate.