Rangaraj Subramanian

Cranston Canyon Load Ratings Precast Arch: Conducted load rating analysis of a precast arch bridge using CSi Bridge v25 and Mathcad, incorporating solid elements to represent the concrete arch and surrounding soil. Provided rating factors for HL-93 design loads and AASHTO legal loads.

NEOM North Connector Egress Structures: Responsible for analysis and design of egress structures (60-100 m long, 22 m wide, 40 m high) using MIDAS Civil. Coordinated with BIM for drawings at various locations.

NEOM Spine Type 2 Egress Structures: Analyzed and designed 6 egress structures (60-100 m long, 22 m wide, 40 m high) using ETABS. Coordinated with BIM, prepared drawings, and addressed compliance comments.

Project: Detailed Design of Delhi-Amritsar-Katra Expressway (Packages 14 & 15)

• Analysis and design of PSC I Girder superstructures for spans of 45m, 40m, 33.5m, and 30m; and RCC I Girder superstructures for 22m and 20m spans.
• Design of RCC light and small vehicular underpasses and substructures for vehicular underpasses, in compliance with IRC codes.
• Structural analysis using grillage models and plate elements in MIDAS CIVIL, ensuring compliance with ultimate and serviceability limit states.
• Modelling and design of skew box structures using plate elements in MIDAS CIVIL.
• Coordination with highway and drafting teams for the preparation of General Arrangement Drawings (GADs) for major and minor bridges, ROBs, underpasses, and culverts.
• Preparation of compliance reports addressing independent engineer’s comments and obtaining approvals for Good For Construction (GFC) drawings.

Project: Detailed Design of Vadodara-Mumbai Expressway Package-7

• Analysis and design of PSC I Girder superstructure for a 32m span.
• Design of abutment substructures and pile foundations for various bridge types, including canal MNB (25m), MJB (31.5m), VOP (40m), and VUP (20m).
• Analysis and design of box-type abutment substructure for a 30m span minor bridge.
• Design of retaining walls of varying heights.

Project: Delhi-Vadodara Expressway – Package 10 & 14

• Analysis and design of RCC I Girder superstructure (20m span).
• Design of abutment substructure and pile foundation for 30m span MNB.
• Design of light vehicular underpasses and minor bridges (box type).
• Design of gantry crane foundation.

Project: River Bridge Across River Tapi, Surat

• Preparation of design sheets for retaining walls.
• Design of retaining walls on piles for various heights.

Project: Six Laning of Krishnagiri–Walajahpet (NH-48)

• Preparation of Design Basis Report.
• Modelling, analysis, and design of vehicular overpasses (portal type), box culverts, minor bridges, pedestrian underpasses (box type), and a G+1 rest area building.
• Preparation of GA drawings and structural design sheets.
• Performing quality checks on designs and drawings.

Project: Tender Engineering – Delhi Vadodara Expressway (DVEW)

• Review of tender documents and preparation of pre-bid queries.
• Identification of project risks and preliminary design of structures.
• Preparation of RC drawings, numeration drawings, and BoQ Excel sheets as per MORTH specifications.
• Quality check of drawings and BoQs.
• Preparation of compliance reports for client and Independent Engineer (IE) comments.

Project: six laning of Udaipur to Rajasthan / Gujarat Border

section from 287.400 km to 401.200 km on NH-8 (Package-V) of

Kishangarh-Udaipur-Ahmedabad stretch under NHDP-V.

Responsibilities:

• Modelling, analysis, and design of highway structures including vehicular overpasses (portal type), minor bridges, box culverts, and pedestrian underpasses (box type).
• Structural design of G+1 rest area building including foundations, beams, slabs, and staircases.
• Preparation of GA drawings and design Excel sheets.
• Quality check of designs and drawings.
• Preparation of BoQ as per MORTH specifications.
• Preparation of compliance reports for Independent Engineer (IE) comments.