Motera Cricket Stadium Roof Design

OWNER

Gujarat Cricket Association

ADDITIONAL INFORMATION

Construction Cost
Roof Construction Cost:
2.45 billion rupee ($35.7 million)

Overall Construction Cost:
7 billion rupee ($102 million)

Completion Date
est. 2019

Project Size
110,000 seats
63 acre site

Motera Cricket Stadium Roof Design

Ahmedabad
India

Walter P Moore is serving as the structural engineer and connection designer for the roof of what will be the world’s largest cricket stadium. Home to the Gujarat Cricket Association, the stadium will hold more than twice the patrons as its predecessor, Sardar Patel Stadium. After two years of demolition, the new facility is currently under construction on the same 63-acre site.

The project is the brainchild of Prime Minister Narendra Modi who believes it is a necessary investment in Ahmadabad’s Motera district where it will serve as home to the official sport of India. It is designed to both meet the needs of cricket’s massive fan base and host other large community events. In addition to 110,000 fully-unobstructed-view seats, design plans include 76 corporate boxes, three practice grounds, team dressing rooms, a state-of-the-art club, an Olympic-size pool, and an indoor cricket academy.

The stadium exists in tiers to accommodate smaller events and maintain the atmosphere for spectators even when the bowl isn’t full. These tiers carry through to the roof being crucial it acted structurally independent. The city of Ahmedabad is located in a level 3 seismic zone. Due to this volatility it was imperative the roof design be lightweight and seismically separate from the bowl to avoid compromising the roof in times of movement.

Walter P Moore performed a detailed design of the roof system. The roof was originally designed to be supported by a trichord compression ring. Walter P Moore proposed a lightweight and flexible tension/compression system which allowed the team to cut costs while simplifying connection and erection procedures. PTFE, or polytetrafluoroethylene, a Teflon-coated woven fiberglass, was stretched between a circumferential inner tension ring and an outer compression ring. These rings float between the bowl and the roof via radial cable spokes to allow for movement in time of seismic activity.