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Fluted Earth Columns Supporting Curved Concrete Roofs in Sustainable Shelter Design

Author:
Vincent Dumay
Fluted Earth Columns Supporting Curved Concrete Roofs in Sustainable Shelter Design
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Fluted earth columns support a curved concrete roof in a sustainable shelter that reimagines the interplay between natural and modern materials for functional space.
5 key facts about this project
01
Fluted columns created using rammed earth enhance structural stability and aesthetics.
02
Curved concrete roof design provides a unique spatial experience while optimizing light flow.
03
Generously sized earth columns reflect an innovative approach to traditional material performance.
04
The project juxtaposes natural and artificial materials to address sustainability challenges.
05
Integrated tie rods in columns ensure structural integrity while maintaining visual appeal.

A Shelter with Three Columns offers an innovative solution for blending form with functionality. The design features a striking arrangement of horizontal surfaces held up by three supportive columns. Located in a setting that promotes engagement with nature, the structure serves as both shelter and an exploration of spatial dynamics. This project is built on the principle of connecting two primary materials: earth and concrete, showcasing their unique qualities while addressing modern sustainability issues.

Concept and Spatial Arrangement

At the core of the design is a focus on spatial experience. The project consists of two horizontal components: a ground slab and a roof, both supported by three substantial columns. This configuration encourages interaction, inviting people to engage with the environment while navigating the space. The gentle curves of the roof and ground slab exemplify the versatility of reinforced concrete, serving both aesthetic and structural roles.

Material Interaction

Concrete is the main material for the roof and ground slab. It is well-known for its durability and performance. The cement in concrete comes from heating limestone and clay rocks, a process that raises important environmental concerns. Using concrete alongside a natural material like earth introduces a dialogue about both modern construction and sustainability.

Structural Elements

The columns are made of rammed earth, a choice that lends a unique character to the design. Given that earth has limited mechanical performance, these columns are generously proportioned to provide adequate support for the roof. This thoughtful approach combines stability with a pleasing look, enhanced by the fluted texture created through tubular formwork. This detail highlights the composition of the earth, made from clay, sand, and gravel.

Design Intent

The project encourages a thoughtful conversation around the use of traditional materials in conjunction with modern techniques. By pairing earth with concrete, it emphasizes sustainability while remaining open to innovative practices. This combination reflects a deeper exploration into the future of building design, illustrating how old and new can coexist in a meaningful way.

The textured columns stand as a testament to the earth used in their creation, establishing a connection between raw materials and the crafted structure. This blend results in an engaging architectural experience, where visitors can appreciate both the beauty and functionality of the design.

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The Buildner’s Unbuilt Award 2025: Celebrating Architectural Creativity and Visionary Unbuilt Designs with a Total Prize Fund of €100,000

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Competition organisers

The Buildner’s Unbuilt Award 2025 is an international architecture competition dedicated to recognizing and celebrating the value of unrealized architectural designs. It invites architects, designers, and students worldwide to submit visionary projects that have not yet been constructed, highlighting the power of ideas and the creativity behind the design process. By focusing on unbuilt work, the competition aims to bring forward concepts that shape the future of architecture and push the boundaries of the profession. 

Participants can compete in three categories based on project scale: Small Wonders (up to 100 m²), Medium Marvels (101–999 m²), and Large Visions (over 1,000 m²). Each category winner will receive €20,000, and additional prizes include honorable mentions, student awards, and a special Best Presentation Award. Winning projects will gain significant international exposure through Buildner’s publicity campaign and a feature article on ArchDaily, providing a unique opportunity to showcase creative ideas to a global audience. 

The Buildner’s Unbuilt Award 2025 encourages entrants to submit any type of unbuilt project, from conceptual visions to detailed designs, celebrating bold innovation without the constraints of realization. Important deadlines: registration closes on October 30, 2025; submissions are due by November 20, 2025; winners will be announced on December 17, 2025.

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Celebrating your unbuilt architecture visions with a €100,000 prize

100,000€ Prize / 2025 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 October 2025

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