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Retractable tensile membrane structure for market roof

Dubrovnik’s market was originally located partly inside a Renaissance-era palace and partly scattered along the streets outside the palace. The new market plan proposed creating a single public building to unify its public functions. The project re-established the palace’s original layout, removed various additions, and restored the heritage building. At the same time, it redesigned the market layout and provided weather protection. Its prime location creates a new identity and direction for both the port and the city.

Retractable tensile membrane structure for market roof
Retractable tensile membrane structure for market roof

The protective canopy/roof for the market had to be low enough so as not to obstruct the view of the palace. At the same time, it had to provide ample fresh air and light. It had to minimize the number of supporting columns to maintain flexibility in the space below; its structure should prevent birds from lingering above the food stalls; and it had to be partially inside and partially outside the palace, unifying the two spaces. Rotating triangular steel beams wrapped in a translucent textile membrane, spanning the entire site, met most of these requirements.

Retractable tensile membrane structure for market roof
Retractable tensile membrane structure for market roof

The sunshade/roof is composed of nine rotating triangular-section lattice steel beams. In its normal state, the roof is open, allowing air and light to circulate; it closes during rain or strong winds. Each steel beam is covered with a translucent textile. The upper layer is waterproof, and the lighter lower layer covers the steel structure. The resulting structure filters sunlight during the day and emits a soft glow at night.

Completed commercial building facade tensile membrane structure customer project
Retractable tensile membrane structure for market roof

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