Guwahati Medical College
Govt of Assam · Guwahati, Assam · MegAtec 340, 360 and SeismAtec 450
Hospitals and healthcare · Seismic Zone V
The clearest example in our record of the seismic case governing outright: a 300 mm separation in a Zone V hospital, alongside ordinary 100 mm thermal joints in the same building.
| Client | Govt of Assam |
|---|---|
| Location | Guwahati, Assam — Seismic Zone V under IS 1893 |
| Sector | Hospitals and healthcare |
| Gap range | 100 and 300 mm |
| Scope | Design of the joint schedule, manufacture in India, and installation by our own crews |
Systems supplied
MegAtec 340Hairline serrated slip-resistant surface, ADA compliantMade in IndiaFloor
MegAtec 360Wall, corner and ceiling, gaps 25–200 mmMade in IndiaWallCeiling
SeismAtec 450Central-pan seismic floor joint, gaps 50–500 mmMade in IndiaFloorSeismicHow we knowFive dispatches between July and November 2025; completed and certified February 2026. Gaps and systems are taken from the production and dispatch records for this job, not from a catalogue. Section drawings are illustrations, not shop drawings.
What this building needed
A 300 mm gap and a 100 mm gap in the same hospital
That is not inconsistency, it is the two calculations doing different jobs. The 100 mm joints are thermal. The 300 mm separation is a structural gap between blocks, sized from storey drift under IS 1893 and amplified for inelastic response — which in Zone V produces figures an order of magnitude larger than thermal movement. SeismAtec 450 covers the wide separation; MegAtec 340 and 360 cover the rest.
Delivered against a live construction programme and closed out
Five dispatches from July to November 2025, and the works completed and certified in February 2026. On government healthcare that certificate is the thing that matters — it is what the next tender committee asks to see.
Specified early, which is why it was installed as designed
Government and institutional healthcare runs on approved-makes lists and third-party inspection. Where the system is named at drawing stage with its gap, movement class and rating attached, it survives to fit-out. Where only a width is named, it gets substituted.
Related: expansion joints for healthcare · our work in Guwahati · how the gap width is calculated · what the seismic zone changes.
Related projects
Building something similar?
Send GFC or concept drawings and we will return a location-by-location joint schedule, with the gap, the system and the movement class named.