Bahá’í Temple of South America in Santiago, Chile

Customer Project

Structural Engineering Structural analysis, construction and completion (steel and roofing)
Josef Gartner GmbH
Würzburg, Germany
josef-gartner.permasteelisagroup.com
Architect Hariri Pontarini Architects
Toronto, Canada
www.hariripontarini.com
Investor National Spiritual Assembly of the Bahá’ís of Canada
www.ca.bahai.org

Length: ~ 34 m | Width: ~ 34 m | Height: ~ 30 m
Nodes: 9,734 | Members: 17,300 | Surfaces: 118 | Finite Elements: 26,348 | Cross-Sections: 66

In Chile, a very extraordinary structure was built at the end of 2014: It is the "temple of light" which is one of eight Bahá’í temples worldwide. The monotheistic Bahá’í religion has about seven millions followers, mainly in India, Iran, Africa as well as in North and South America. It took many decades to plan the temple.

Josef Gartner GmbH, the German customer of Dlubal Software, was given the job of planning, design and construction of the entire structure above the foundation.

Structure

The shape of the temple resembles a nine‑petalled blossom of a lotus flower. The building has a diameter of about 34 m and a height of 30 m. The substructure consists of a two-story concrete structure and a flat footing.

As the site is placed in a Chilean region with a high seismic risk, it was necessary to uncouple the structure horizontally from the ground with regard to vibrations. That is why a total of ten friction pendulum bearings were arranged between the concrete columns and the second intermediate ceiling.

The steel supporting structure is a kind of space frame with an upper and lower chord layer consisting of rectangular cross‑sections as well as round pipe diagonals serving as connecting elements.

The nine petals that are identical in construction are closing with their leaf apices at the maximum point forming a light dome (oculus). The structural skeleton is formed, like for real plant petals, by an interior framework consisting of round pipes with thicker section walls of d = 323.9 mm.

First, the building was modeled using the design software Rhinoceros. Then, the complete 3D model was transferred to RFEM and RSTAB and optimized in close cooperation with the architect.

Finally, Gartner calculated the steel structure in RFEM and RSTAB considering the impact of earthquakes.

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