The Hall of Nations was supported on in-situ-driven piles tied together with grade beams in two directions. First, along the six springing points in one face of the pyramid, and second, along the other direction connecting the opposite faces of the pyramid. The latter were post-tensioned in stages to cater to the large horizontal forces that developed as the structure went up.
(on the right) Construction photos of pile caps and the reinforcement being arranged for the space-frame members.
Source: Mehta, Vandini, Rohit Raj Mehndiratta, and Ariel Huber. "Hall of Nations and Halls of Industries, New Delhi, 1972." In The Structure – Works of Mahendra Raj, 152-179. University of Chicago Press, 2016
This image is embedded in ...
- Mahendra Raj inspecting the foundation plans of the Hall of Nations, Tuesday, April 18, 2017 - 20:45
- Raj Rewal, Architect and Mahendra Raj, structural Engineer to the Hon'ble Prime Minister of India, Wednesday, April 8, 2015 - 05:44
- National Associations In Letters in support of an appeal to save the Hall of Nations, Pragati Maidan. New Delhi: Architexturez Imprints, 2017.
- "Hall of Nations and Halls of Industries, New Delhi, 1972." In The Structure – Works of Mahendra Raj, 152-179. University of Chicago Press, 2016.