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Die Netzschale der Jinji Lake Mall
Author(s) -
Plieninger Sven,
Gebreiter Daniel,
Mühlberger Jörg,
Justiz Stefan
Publication year - 2015
Publication title -
stahlbau
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.268
H-Index - 19
eISSN - 1437-1049
pISSN - 0038-9145
DOI - 10.1002/stab.201590068
Subject(s) - roof , humanities , phoenix , art , structural system , engineering , architectural engineering , art history , physics , structural engineering , archaeology , geography , metropolitan area
Für eines der künftig größten Einkaufszentren Chinas in Suzhou hat schlaich bergermann und partner eine 35.000 Quadratmeter große freigeformte Netzschale geplant. Die Herausforderung bestand darin, für den 400 Meter langen Komplex aus vier statisch unabhängigen Gebäuden ein fugenloses Dach in Form von Phoenix‐Schwingen zu realisieren, das großen Relativverschiebungen aus Temperatur‐ und Erdbebeneinwirkungen standhält. Eine aufgrund ihrer Flexibilität vorteilhafte regelmäßige Viereckstruktur wurde mittels eigens entwickelter Modellierungsmethoden gefunden. Dieser digitale Entwurfsprozess ermöglichte die gekoppelte Optimierung von Netz und Tragwerk hin zu einer zugleich harmonischen und filigranen Struktur. The grid‐shell of Jinji Lake Mall. Jinji Lake Mall, a 290,000 m² shopping and entertainment centre, will be centrepiece to a development of several super‐high‐rise buildings by the waterfront of Jinji Lake in Suzhou, China. Visible from the surrounding skyscrapers, the appearance of the “fifth façade” became of paramount importance. In response, the architectural design foresaw a continuous, 35,000 m² free‐form glass roof to cover the four individual buildings of the mall ensemble. schlaich bergermann and partner structural consulting engineers were tasked with the structural design of the roof whose shape was inspired by the wings of a phoenix. To alleviate excessive in‐plane stresses in the roof, a rigid triangulated grid was discarded in favour of a more elastic quadrangular frame system, requiring the generation of a quad‐dominant topology on the free‐form surface. The complex interplay between base buildings and roof structure required that all analysis be done on a combined model including roof, tree columns and sub‐structure. Multi‐resolution mesh modelling stood at the core of a generative work‐flow which mathematically optimized for geometric and structural criteria in the same process. Furthermore, geometrically similar facets were grouped and subsequently assigned the same panel, reducing the unique panel count.