Covered Urban Market Arcade

A photorealistic render of a new covered market arcade in the center of a mid-sized Spanish city, a 120m-long linear public building that replaces a derelict 1970s market hall, designed as a contemporary interpretation of the traditional Catalan market typology. Structure: A single-nave barrel-vaulted structure (22m span, 14m vault height at apex, 120m length) in precast concrete. The vault is composed of 60 precast UHPC barrel vault segments (each 2m wide x 22m span, 80mm thick shell), assembled on a continuous steel ridge beam and supported at 6m intervals on slender paired V-columns (each column leg 200mm square section, white-painted steel, the V opening at 3m height to support the vault spring points). The vault exterior is planted — sedum and thyme, creating a green barrel-vault profile that reads as a landscape element from the surrounding buildings above. The vault underside is smooth white UHPC, the precast segment joints visible as 10mm shadow lines at 2m intervals running the full 120m length. Gable ends: Both gable ends of the vault are entirely glazed (the north end a simple grid of floor-to-ceiling glass panels in slim steel frames; the south end a more complex composition with a central arched opening for vehicle access and flanking pedestrian entries). The gable glazing allows daylight to travel the full 120m length of the interior as a grazing light from the ends. Interior market: The ground level is organized as two parallel rows of market stalls (each stall 4m wide x 5m deep, open-front timber kiosks in painted steel frame with oak counter and display shelves), the rows running the full length flanking a 10m wide central pedestrian lane. The market types: fresh produce (vegetables and fruits in abundant colorful display), fish counter (crushed ice display with whole fish, shellfish in baskets), a floristry (buckets of seasonal cut flowers), a charcuteria and cheese counter, a fresh pasta maker. The stall fronts are individually designed with character — handpainted signs, awnings in varied colors (terracotta, saffron, bottle green), hand-chalked daily price boards. People: Saturday morning market — approximately 50-60 people visible at various distances, shopping, chatting, carrying baskets. A street musician playing a guitar visible at the central crossing. Children with parents at the fruit stalls. The atmosphere of a genuinely lively Mediterranean market. Light: Daylight enters from both glazed gable ends and from a continuous translucent strip (1200mm wide polycarbonate panels) running along the vault ridge over the full 120m length, the ridge strip admitting diffuse top light that falls vertically onto the central pedestrian lane. Camera angle: From within the market arcade near the north gable end, looking south along the full 120m perspective of the barrel vault, the V-columns receding in pairs, the market stalls on both sides alive with color and activity, the south gable's arched opening a distant bright rectangle. Eye-level (1.7m). Focal length equivalent 24mm. Aspect ratio 16:9. Time of day: 10:00 AM, Saturday morning, bright spring day.