IS 15006:2001 is the Indian Standard (BIS) for modular expansion joints for bridges - specification. This standard specifies the requirements for materials, design, fabrication, testing, and installation of prefabricated modular strip/box seal expansion joints for bridges. It covers functional aspects like movement accommodation, load transfer, watertightness, and durability, with a strong emphasis on fatigue resistance.
Earlier specification for material, design, manufacturing, testing, and acceptance requirements for modular expansion joints in bridges.
Overview
- Status
- Superseded — superseded by IS 15006:2022
- Usage level
- Specialized
- Domain
- Structural Engineering — Bridges and Bridge Engineering
- Type
- Specification
Also on InfraLens for IS 15006
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
Practical Notes
! Installation is as critical as design; improper installation, particularly anchor placement and concrete preparation, is a major cause of premature failure.
! Watertightness is paramount to prevent corrosion of underlying girders and bearings. Regular inspection and maintenance of seals are essential for long-term performance.
! Always verify that the manufacturer provides a valid fatigue test certificate for the specific joint model and movement range, as required by Clause 9.
Frequently referenced clauses
steelelastomerconcrete
International Equivalents
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International Comparison — Coming Soon
We're adding equivalent international standards for this code.
Key Values5
Quick Reference Values
Watertightness test condition50 mm constant water head for 24 hours with no leakage
Fatigue test cycles for National Highways2 x 10^6 cycles
Hardness of elastomeric seal (Shore A)63 ± 5
Minimum tensile strength of steel for centre/edge beams410 MPa
Maximum gap between centre beams at max opening85 mm
Tables & Referenced Sections
Key Tables
Table 1 - Requirements of Steel to be Used for Centre Beam, Edge Beam and Other Structural Elements
Table 2 - Requirements of Elastomeric Sealing Elements
Table 3 - Geometrical Tolerances for Assembled Joint
Key Clauses
Clause 4 - Materials
Clause 5 - Functional Requirements
Clause 6 - Design
Clause 9 - Testing
Clause 10 - Installation
Frequently Asked Questions4
What is the primary purpose of a modular expansion joint?+
To accommodate large structural movements (e.g., thermal, shrinkage, seismic) between bridge deck segments while providing a smooth riding surface and preventing water leakage.
What major tests are specified for modular joints?+
The code mandates fatigue testing, watertightness testing, and comprehensive material tests for both steel and elastomeric components (Clause 9).
What is the fatigue life requirement for a modular joint on a National Highway?+
The joint must be tested to withstand 2 million fatigue load cycles without failure, as specified in Clause 9.2.
What is the maximum allowable gap between the centre beams?+
The gap between any two adjacent centre beams or a centre beam and an edge beam shall not exceed 85 mm at the maximum opening position of the joint (Clause 5.4).
QA/QC Inspection Templates
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QA/QC templates coming soon for this code.