Ceiling Seismic Buffer Assembly for Vibration-Isolated Panels
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Solution Overview
Problem
Ceiling panels in buildings are prone to damage and structural separation during earthquakes and typhoons due to direct transmission of vibrations and impacts, leading to safety hazards.
Innovation Solution
A ceiling type seismic impact buffer unit is designed with an upper connection rod coupled to an anchor bolt and a lower connection rod connected to a ceiling panel, featuring a housing main body with coupling bolts and a restoring spring, allowing the lower connection rod to absorb and reduce vibrations and impacts through a sliding contactor mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the ceiling panel is vertically fixed to the ceiling slab using a connection rod and anchor bolt, then the ceiling panel is firmly supported, but vibration and impact from earthquakes or typhoons are directly transmitted to the ceiling panel, causing structural separation or damage
Solution Approach 1:
A buffer unit is introduced as an intermediary component between the upper connection rod (fixed to ceiling slab) and the lower connection rod (fixed to ceiling panel). This buffer unit absorbs and attenuates vibration and impact forces before they reach the ceiling panel, while still maintaining the firm support function. The buffer unit acts as a mediator that decouples the direct force transmission path.
Solution Approach 2:
The buffer unit is pre-installed in the connection assembly between the ceiling slab and ceiling panel to provide beforehand cushioning against upcoming vibration and impact loads from earthquakes or typhoons. This prior cushioning preparation allows the system to withstand external forces without direct damage to the ceiling panel.
2Strength
If the ceiling panel is rigidly connected to the ceiling slab, then structural stability is maintained, but during seismic events the rigid connection transmits strong impacts causing ceiling structures to separate or damage
Solution Approach 1:
The connection system is transformed from a static rigid connection to a dynamic semi-rigid connection incorporating the buffer unit. The buffer unit allows controlled movement and deformation under seismic loads, absorbing energy through elastic deformation while maintaining connection integrity. This dynamic characteristic enables the system to adapt to varying seismic forces.
Solution Approach 2:
The mechanical properties of the connection system are changed by introducing the buffer unit, which modifies the stiffness and damping parameters of the overall assembly. The buffer unit provides non-linear force-displacement characteristics, allowing the connection to remain rigid under normal conditions but become more compliant under extreme seismic loads, thereby improving reliability.
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 buffer unit effectively minimizes the transmission of vibrations and impacts to the ceiling panel, preventing structural separation and damage, thus maintaining the stability and safety of the ceiling structure.
Implementation Method 1
a restoring spring which is elastically supported and has upper and lower ends coupled to first and second fixing washers of the first and second coupling bolts
Data Source
AI summary
Disclosed is a ceiling type seismic impact buffer unit which may perform a buffering action of reducing vibration or the impact applied thereto attributable to earthquakes, typhoons, etc. without direct transmission of the vibration or the impact to a ceiling panel installed on a ceiling. The ceiling type seismic impact buffer unit includes a housing main body, a first coupling bolt, which is fixed into a coupling hole formed in the center of the upper surface of the housing main body and has a front end connected to an upper connection rod, a second coupling bolt, which is fixed to a sliding contactor through a sliding guide hole formed in the center of the lower surface of the housing main body and has a front end connected to a lower connection rod, and a restoring spring, which has upper and lower ends coupled to first and second fixing washers.