Load Combinations for Structural Design
1. Limit State of Collapse
|
Load Combination |
Factor |
|
Dead Load (DL) +
Live Load (LL) |
1.5 |
|
Dead Load (DL) +
Wind Load (WL) / Earthquake Load (EL) |
1.5 |
|
Dead Load (DL)
(for stress reversal cases) |
0.9 |
|
Dead Load (DL) +
Live Load (LL) + Wind Load (WL) / Earthquake Load (EL) |
1.2 |
2. Limit State of
Serviceability
|
Load Combination |
Factor |
|
Dead Load (DL) |
1.0 |
|
Live Load (LL) |
1.0 |
|
Wind Load (WL) /
Earthquake Load (EL) |
1.0 |
|
Dead Load (DL) +
Wind Load (WL) / Earthquake Load (EL) |
0.8 |
Relevant IS Codes
for Structural Design
|
IS Code |
Purpose |
|
IS 875 |
Load calculations |
|
IS 1843 |
Prestressed concrete design |
|
IS 1893 |
Earthquake-resistant design |
|
IS 3370 |
Liquid retaining structures |
0 Comments