Technical Floor Column Anchor for Seismic Stability and Noise Isolation
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Solution Overview
Problem
Existing anti-seismic solutions for technical floors either compromise noise reduction or obstruct the interspace between the walking surface and the slab, failing to effectively counteract seismic phenomena while maintaining the integrity of the technical floor's design.
Innovation Solution
An anti-seismic safety device comprising a bridge-shaped band and a semi-column with a circular section, fixed to the slab via end zones, allowing the bearing columns to move horizontally and vertically, thus providing stability without obstructing the interspace and preserving noise reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base of the bearing columns is fixed to the slab by screws or glue to counteract vertical accelerations, then the seismic stability is improved, but the noise reduction function of the plastic anti-noise PADs is eliminated
Solution Approach 1:
The safety device is divided into two functional segments: a fixation band that anchors to the slab for seismic stability, and a semi-columnar body that provides a bearing surface for the bearing column base. This segmentation allows the fixation function to be separated from the noise reduction function, enabling both objectives to be achieved simultaneously.
Solution Approach 2:
The safety device acts as an intermediary element between the slab and the bearing column base. Instead of directly fixing the bearing column to the slab (which would eliminate noise reduction), the safety device mediates this connection, providing both anchorage and a bearing surface while allowing anti-noise PADs to remain functional.
2Reliability
If tie-rods/bracings are used to lock the upper part of the bearing columns to counteract horizontal accelerations, then the seismic stability is improved, but the interspace between the walking surface and the slab is partially obstructed
Solution Approach 1:
The invention transitions from horizontal bracing (tie-rods/bracings in the interspace) to vertical anchoring (band fixed to the slab below). By changing the dimension of the stabilization mechanism from horizontal to vertical, the interspace remains unobstructed while seismic stability is maintained through the anchored safety device.
3Reliability
If the dimensions of the bearing columns are increased to increase thickness and supporting surface, then the seismic resistance is improved, but the device complexity and material usage increase
Solution Approach 1:
The seismic resistance function is extracted from the bearing column itself and transferred to a separate safety device. Instead of modifying the bearing column dimensions, the column remains simple while the attached safety device provides the seismic resistance through its anchored configuration, reducing overall system complexity.
Data Source
AI summary
A safety device for supporting bearing columns of a technical floor. The device is configured to be fixed to a slab and comprises a band of a certain length and width comprising a raised central zone, at least two end zones, positioned on a lower level than the raised central zone. The device also comprises a semi-column, fixed to the central zone so as to remain raised as to the end zones. The semi-column comprises an internal diameter greater than the external diameter of each bearing column to which the device is applied. A technical floor comprising bearing columns with the device applied is also disclosed.