IS 10701:2019 is the Indian Standard (BIS) for construction of precast concrete structures. This standard outlines the code of practice for the construction of structures using precast concrete elements. It covers requirements for fabrication, handling, transportation, storage, erection, and connections to ensure structural safety and serviceability.
Covers the general requirements for the design, manufacture, erection and inspection of precast concrete structures and their components.
Overview
- Status
- Current
- Usage level
- Specialized
- Domain
- Structural Engineering — Precast and Prefabricated Concrete
- Type
- Code of Practice
Also on InfraLens for IS 10701
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
Practical Notes
! Strict adherence to specified tolerances (Clause 5) is paramount to avoid fit-up issues during erection, which can cause costly delays and compromise connection integrity.
! The design and location of lifting points are critical for safety and to prevent stress-induced damage to the precast element during handling and erection (Clause 6.2).
! Proper temporary bracing during erection (Clause 7) is essential to ensure stability of the structure against wind and construction loads until all permanent connections are completed and have gained sufficient strength.
Frequently referenced clauses
precast concreteconcretesteelgrout
International Equivalents
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International Comparison — Coming Soon
We're adding equivalent international standards for this code.
Key Values5
Quick Reference Values
Permissible tolerance in length for elements up to 3m± 5 mm
Permissible tolerance in cross-section dimensions up to 500mm± 5 mm
Permissible deviation in plumb of columns per storey height± 10 mm
Permissible deviation in level for bearing seating± 5 mm
Minimum bearing length for beams/slabs on supports75 mm
Tables & Referenced Sections
Key Tables
Table 1 - Permissible Dimensional Tolerances for Precast Concrete Elements
Table 2 - Permissible Deviation in Position of Precast Concrete Elements after Erection
Key Clauses
Clause 5 - Tolerances
Clause 6 - Transportation and Storage
Clause 7 - Erection
Clause 8 - Connections
Clause 9 - Finishing
Frequently Asked Questions4
What is the typical manufacturing tolerance for the length of a precast beam?+
For a beam up to 3 m long, the tolerance is ±5 mm. For lengths between 3 m and 6 m, it is ±8 mm (Table 1).
What is the minimum recommended bearing for a precast slab on a support?+
The minimum bearing length should be 75 mm, unless a smaller length is justified by design calculations (Clause 7.3).
How should precast elements be stored on site?+
Elements should be stored on firm, level ground using dunnage at specified support points to prevent warping, cracking, or damage (Clause 6.3).
What is the maximum deviation from plumb for a single-storey precast column after erection?+
The permissible deviation from plumb per storey height is ±10 mm, with a maximum total deviation of ±25 mm for the full height (Table 2).
QA/QC Inspection Templates
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QA/QC templates coming soon for this code.