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Screw Pillar Structure with Expanded Metal Façade for Wetland Observation

Authors:
Uli Schifferdecker, Daniel Nocker
Screw Pillar Structure with Expanded Metal Façade for Wetland Observation
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Relying on a foundation of prestressed screw pillars and a façade of expanded metal sheets, the observation area offers elevated views of the wetland, enhancing visitor engagement with the natural environment.
5 key facts about this project
01
The platform's foundation consists of 30 prestressed screw pillars extending over 15 meters into the ground.
02
Expanded metal sheets on the façade are perforated to regulate sunlight and enhance comfort.
03
Access paths include ramps and stairs designed to meet UAE building regulations for inclusivity.
04
The layout maximizes sight lines to provide unobstructed views of the wetland ecosystem.
05
Prefabricated modules are utilized for efficient on-site assembly, reducing construction time.

The Al Wathba Wetland Observation Platform is located in the Al Wathba Wetland, an area rich with diverse plant and animal life. It serves as a space for people to experience and observe the natural environment. The design takes inspiration from the idea of a bird cage turned inside out, creating a structure that offers an open yet protected experience, allowing visitors to truly engage with the surrounding landscape.

Structural Foundation

The observation platform is built on a prestressed screw pillar foundation. This foundation includes 30 pillars that reach over 15 meters into the ground. It provides strong support while causing minimal disturbance to the delicate ecosystem. The installation process is efficient. Using small construction machinery makes quick work of drilling, which helps keep the impact on the site low.

Access and Connectivity

Access to the platform is designed for everyone. Ramps and stairs connect various levels and follow UAE building regulations to ensure that visitors with different mobility needs can reach the observation area. This layout promotes a smooth flow between the platform and the surrounding park, encouraging people to engage with the wetland’s natural beauty.

Architectural Features

The design puts a strong emphasis on sight lines, which enables visitors to enjoy wide views of the wetlands. Cross bracing and cantilevers add strength to the structure and create spacious openings for better visibility. The use of prefabricated modules during construction ensures that the assembly is both efficient and precise, contributing to the overall stability of the platform.

Facade Treatment

The façade features expanded metal sheets that serve both aesthetic and functional purposes. These sheets are perforated to adjust how sunlight enters the structure, which helps regulate the internal environment. This adaptability not only enhances the visitor experience but also aligns the design with its natural surroundings.

The combination of the platform's thoughtful design and structural characteristics provides a way for people to connect with nature. The architecture invites exploration and appreciation of the wetlands, emphasizing the relationship between built spaces and the environment.

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Vancouver Tall Challenge: Building Higher Downtown

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Competition organisers

The Vancouver Tall Challenge: Building Higher Downtown is an international architecture competition organized by Buildner in collaboration with the City of Vancouver and the University of British Columbia’s School of Architecture and Landscape Architecture (SALA). The competition invites architects, designers, planners, and creative thinkers to explore innovative approaches to tall buildings in Vancouver’s downtown core, focusing on sustainability, livability, urban density, public space, and the city’s strong connection to nature. As Vancouver continues to grow, participants are challenged to rethink how vertical development can enhance urban life and contribute to a more vibrant, inclusive, and resilient city identity.

The competition offers a total prize fund of $15,000 CAD, with winning proposals selected by an international jury of architects, planners, academics, and city-building professionals. Key dates include the final registration deadline on October 29, 2026, submission deadline on November 30, 2026, and winners announcement on January 26, 2027. Full competition details, requirements, and registration information are available at architecturecompetitions.com/VancouverTallChallenge

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