IS 875 Codes focusing on Dead Loads and Live Loads,

 Here's a clear and concise explanation of IS 875 Codes focusing on Dead Loads and Live Loads,

 

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🎯 IS 875: Code for Loads on Structures – Dead & Live Loads Explained

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📘 What is IS 875?

IS 875 is the Indian Standard code that provides guidelines on the various loads to be considered in the design of buildings and structures.

🔹 It ensures safety, stability, and durability by specifying how different types of loads act on structures.
🔹 It’s divided into 5 parts, each focusing on different types of loads.

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📦 PART 1: DEAD LOADS (IS 875 Part 1)

🧱 What Are Dead Loads?

Dead loads are permanent static forces that remain constant over time.

🏗️ Includes:

• Self-weight of structural components (beams, slabs, columns, etc.)

• Fixed architectural features (floor finishes, walls, ceilings)

• Services like plumbing pipes, electrical conduits (if permanently attached)

📐 Key Point:
Dead loads are calculated based on material unit weights (given in IS 875 Part 1).

🔢 Example:

• RCC = 25 kN/m³

• Brick masonry = 18.8 kN/m³

• Steel = 78.5 kN/m³

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🚶 PART 2: LIVE LOADS (IS 875 Part 2)

🚻 What Are Live Loads?

Live loads (also called imposed loads) are transient or moving loads that can vary in magnitude and location.

🔄 Includes:

• Occupants (people)

• Furniture

• Moveable equipment

• Loads during construction and maintenance

📌 Key Considerations:

• Depends on building use (residential, office, warehouse, etc.)

• Given in kN/m² for floors and kN/m for beams

🔢 Examples from IS 875 Part 2:

• Residential rooms = 2.0 kN/m²

• Office floors = 2.5–3.0 kN/m²

• Staircases = 3.0 kN/m²

• Assembly halls = 5.0 kN/m²

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📊 Dead vs Live Load: Quick Comparison

Feature	Dead Load	Live Load
Nature	Permanent	Temporary/Variable
Examples	Wall, Slab, Beam	People, Furniture
Variation	Constant	Changes with usage
Code Reference	IS 875 Part 1	IS 875 Part 2

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🏁 Conclusion

✔ IS 875 ensures that all loads—whether fixed or temporary—are accounted for in structural design.
✔ Part 1 helps calculate self-weight accurately, and Part 2 ensures we design for real-world usage scenarios.

🧠 Always refer to IS 875 when designing safe and compliant structures!