This standard provides guidelines for the planning, design, and construction of precast concrete buildings. It covers materials, structural design principles, critical connection details, manufacturing/erection tolerances, and quality assurance. The code serves as a supplement to IS 456, addressing the unique aspects of precast concrete technology.
Provides guidelines for the design and construction of precast concrete buildings, covering aspects like structural analysis, connections, and stability.
Quick Reference Values
Minimum concrete grade for precast elementsM25
Minimum concrete grade for elements in severe exposureM35
Permissible cover reduction for factory precast (>=M35)5 mm
Minimum bearing length for slabs (up to 4m span)75 mm
Maximum tolerance in length for 10m long beam±10 mm
Maximum erection tolerance for column plumb over a 3m height±5 mm
Practical Notes
Connection design (Clause 7) is the most critical aspect of precast structures and requires special attention, particularly for ensuring structural integrity and seismic resistance.
Strict adherence to manufacturing and erection tolerances (Clause 9 and Tables 2 & 3) is essential for a successful project, preventing fit-up issues on site.
Early coordination between the architect, structural engineer, and precast manufacturer is crucial for an efficient and buildable design.