CASE STUDY | COMPLETED

OMR Multi-Storey Structural Steel Commercial Complex

Southern Infra Developers — Old Mahabalipuram Road (OMR), Chennai, Tamil Nadu

2,60,000 Sq.Ft.Built-up Area
2200 MTStructural Steel
28m Column-FreeClear Span
4.2m HeightClear Height
PROJECT OVERVIEW

High-Performance Structural Engineering

A G+5 multi-storey commercial office and IT development center featuring composite structural steel framing, metal deck slabs, and an expansive architectural atrium with cantilevered structural canopies.

The Requirement

Fast-track construction schedule to achieve commercial leasing 6 months faster than conventional concrete construction, with large open floor plates and 2-hour certified fireproofing.

Engineering Challenge

Engineering moment-resisting steel beam-to-column connections for coastal seismic Zone III wind/earthquake loads while keeping structural column sizes slim to maximize prime leasable floor area.

OUR SOLUTION

Engineered Structural Steel Strategy

Engineered composite structural steel framing utilizing high-yield E350 steel beams with welded shear studs and 75mm profiled metal deck slabs. The entire steel superstructure was finished with thin-film decorative intumescent fireproofing.

Design Details

  • Composite steel beam design reducing foundation dead weight by 45% compared to RCC
  • Aesthetic curved steel canopy and glass curtain wall support framing
  • Dynamic floor vibration dampening for high-occupancy office ergonomics

Fabrication

  • Precision box column fabrication with internal diaphragm stiffeners
  • Automated CNC 3D drilling ensuring zero on-site hole reaming
  • Certified 2-hour intumescent fire protection coating application

Erection

  • Erected all 6 structural floor levels in only 11 weeks using tower cranes
  • Continuous laser survey checking inter-storey drift and plumbness within ±2mm
  • Zero noise complaints in busy IT corridor with quiet bolted connections

Building in steel with Yatee enabled us to open our commercial center half a year before our competing RCC developments. The open column-free floor plates leased at a 15% premium.

M. K. Swaminathan

Managing Director, Southern Infra Developers

Project Data Sheet

Structural Metrics

Client:Southern Infra Developers
Location:Old Mahabalipuram Road (OMR), Chennai
Industry Vertical:Commercial
Building Typology:G+5 Multi-Storey Composite Steel Office Building
Built-Up Area:2,60,000 Sq. Ft.
Steel Tonnage:2200 MT
Clear Height:4.2 Meters
Clear Span:28 Meters
Status / Year:Completed (2025)
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