IS 2193:1986 is the Indian Standard (BIS) for precast prestressed concrete street lighting poles. This standard specifies the requirements for the materials, design, manufacture, and testing of precast prestressed concrete poles used for street lighting. It defines dimensions, working loads, safety factors, and specific transverse strength tests to ensure durability against wind loads and environmental exposure.
Precast Prestressed Concrete Street Lighting Poles
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Design Philosophy | Working Stress Method (WSM) | Limit State Design (LSD) / Load and Resistance Factor Design (LRFD) | EN 40-4 / AASHTO LRFDLTS-1 |
| Minimum Concrete Strength (28-day cube) | 42 N/mm² (M42) | Minimum class C35/45 (equivalent to 45 N/mm² cube strength) | EN 40-4:2013 |
| Minimum Concrete Cover to Prestressing Steel | 20 mm | Dependent on exposure class (e.g., 25-35 mm for typical outdoor conditions) | EN 40-4:2013 |
| Transverse Deflection Limit | H/60 (where H is height above ground) | Defined by classes, e.g., Class 3 is a max deflection of 0.10H | EN 40-3-1:2013 |
| Transverse Load Test Criteria (Cracking) | No cracks should appear at 2.5 times the design working load. | First visible crack must not appear below the specified cracking load. | ASTM C1089-18 |
| Final Loss of Prestress (Assumed) | Not less than 15% | Calculated based on specific models for creep, shrinkage, and steel relaxation (typically 15-25%). | EN 1992-1-1 (referenced by EN 40-4) |