Beveled Sidewalk Tile with Pickup Points
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Solution Overview
Problem
Traditional sidewalk tiles are prone to cracking and displacement due to tree roots, leading to costly repairs and hazards for pedestrians, as they are not easily removable or replaceable without damaging the surrounding concrete.
Innovation Solution
A beveled sidewalk tile construction kit featuring a unitary frame with reinforcement and pickup points allows for the easy removal and replacement of tiles, preventing damage to adjacent tiles and reducing repair costs by enabling the tiles to be lifted without cracking, using a frame that acts as a mold for concrete and provides additional support after curing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional sidewalk tiles with vertical sides are used, then the sidewalk provides structural stability, but the tiles are prone to cracking and displacement when tree roots grow underneath
Solution Approach 1:
The sidewalk is divided into individual removable tiles rather than a continuous slab. Each tile is a separate unit that can be independently removed and replaced, allowing damage from tree roots to be contained to individual tiles rather than causing widespread cracking throughout the entire sidewalk structure.
Solution Approach 2:
The sidewalk tiles transition from a fixed permanent structure to a dynamic removable structure. The tiles can be easily lifted and relocated using pickup points, allowing the sidewalk to adapt to changing conditions such as tree root growth without requiring complete demolition and reconstruction.
2Area of stationary object
If traditional concrete sidewalk with vertical sides is used, then the sidewalk provides continuous coverage, but repair requires demolition and lengthy curing time
Solution Approach 1:
The sidewalk is segmented into individual tiles that can be removed and replaced independently. This allows repair work to be performed on single tiles rather than requiring demolition of large sections of continuous concrete, significantly reducing repair time and allowing rapid replacement without waiting for curing.
Solution Approach 2:
Replacement tiles can be prepared in advance off-site while the damaged tile is being removed. The pre-cured replacement tile is ready for immediate installation, eliminating the need to wait for curing time during the repair process and minimizing disruption to pedestrians.
3Strength
If traditional sidewalk tiles are damaged, then repair is necessary, but the high friction coefficient of concrete resists sliding and makes tile movement difficult
Solution Approach 1:
Pickup points are introduced as intermediary elements that provide a mechanical advantage for lifting tiles. These pickup points allow workers to easily lift and move heavy concrete tiles despite the high friction between tile surfaces, making tile replacement a simple operation that does not require excessive force or specialized equipment.
4Shape
If traditionally formed sidewalk tiles are used, then the sidewalk provides aesthetic appearance, but displaced tiles create hazards for pedestrians
Solution Approach 1:
The sidewalk system transitions from a fixed structure to a dynamically adjustable one where tiles can be easily relocated. When displacement occurs, tiles can be quickly repositioned or replaced to eliminate tripping hazards, maintaining pedestrian safety while preserving the aesthetic appearance of the sidewalk through proper tile alignment and spacing.
Data Source
AI summary
A system and method for forming concrete tiles for use in concrete walkways and concrete patios and courtyards. The system includes a unitary frame with two or more slanted sidewalls with a plurality of pickup points placed within an interior opening of the unitary frame. Concrete poured into the interior opening of the frame forms a beveled or slanted concrete sidewalk tile. The pickup points are buried in the beveled concrete sidewalk tiles. When an opening in the pickup points is uncovered, a means to pick and place the beveled concrete sidewalk tiles is provided. Slanted or beveled sidewalls prevent binding to or interference with adjacent slanted or beveled sidewalk tiles to facilitate lifting.