In architecture, a pole light foundation refers to the structural base designed to support a light pole, typically used for outdoor lighting in areas such as streets, parking lots, parks, and pathways. This foundation ensures the stability and durability of the pole, especially under varying weather conditions and wind loads.
It is usually made of reinforced concrete and is designed according to the height of the pole, weight of the fixture, soil conditions, and environmental factors.
The foundation may include anchor bolts or templates for mounting the pole securely. Proper design and installation of the pole light foundation are crucial to ensure safety, longevity, and optimal performance of the lighting system.
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Pole light foundation detail drawing – 1
A pole light foundation detail drawing in construction is a technical illustration that shows the precise design, dimensions, and components of the foundation required to securely install a light pole. This drawing is essential for contractors and engineers to ensure structural integrity and compliance with codes.
Here’s what such a drawing typically includes:
Foundation Type & Shape
- Most common is a cylindrical or square concrete footing, often labeled as a pier or pedestal.
- Depth and diameter are specified based on soil conditions, frost line, and pole height.
Dimensions
Clear measurements such as:
- Depth of foundation (e.g., 4′-0″ to 8′-0″)
- Diameter or width of the base (e.g., 18″ to 30″)
- Top of footing elevation relative to grade
Reinforcement Details
- Number, size, and spacing of reinforcing bars (rebar) shown in plan and section.
- Use of stirrups or ties for structural strength.
- Reinforcement cage often labeled with bar schedule.
Anchor Bolt Layout
- Anchor bolts embedded into concrete for pole mounting.
- Bolt size, projection above the foundation, threading details, and bolt circle diameter.
- Template or plate for bolt positioning may be shown.
Conduit Placement
- PVC or metal conduits for electrical wiring leading from underground power to the pole.
- Entry and exit points are marked clearly.
Grounding Details
- Ground rod location and connection to the pole or anchor bolts for electrical safety.
Elevation & Section Views
- Side section view showing foundation in soil with all embedded parts.
- Plan view from the top showing bolt layout and conduit.
Notes & Specifications
- Concrete strength (e.g., 3000 psi)
- Backfill requirements
- Minimum cure time before pole erection
This detail drawing ensures that everyone involved in construction—from excavators to electricians—has a clear understanding of how the foundation should be built for stability, safety, and performance.
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