Which IS Code specifies snow loads?
- AIS 875 Part II
- BIS 875 Part IVCorrect
- CIS 875 Part III
- DIS 875 Part V
Solution
Concept
IS code specification for structural snow loads
Formula
IS 875 (Part 4) - Snow Loads
Step-by-step solution
1. IS 875 is the Indian Standard code of practice for design loads for buildings. 2. Part 1 covers Dead Loads (unit weights). 3. Part 2 covers Imposed (Live) Loads, while Part 3 covers Wind Loads. 4. Part 4 covers Snow Loads, and Part 5 covers Special Loads and Load Combinations. 5. Therefore, snow loads are specified in IS 875 Part IV. Answer: B
Explanation
The Indian Standard IS 875 is divided into five parts for structural design loads. Part IV explicitly details the calculation procedures, ground snow loads, and roof slope reduction factors for snow loading.
Why the other options are wrong
A) IS 875 Part II specifies Imposed (Live) Loads. C) IS 875 Part III specifies Wind Loads. D) IS 875 Part V specifies Special Loads and Load Combinations.
Shortcut
IS 875 Parts: 1 Dead, 2 Live, 3 Wind, 4 Snow, 5 Special.
Common mistake
Confusing Part IV (Snow loads) with Part III (Wind loads).
Correct answer: B) IS 875 Part IV