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2018-02-01

Free-Form Glass Structure at Xujiahui Commercial Center in Shanghai, China

A remarkable free-form roof structure was built at the Xujiahui Commercial Center in Shanghai, China, and inaugurated in June 2017.
It serves as a skylight in the indoor area of the shopping center, and as a canopy in the outdoor area.

Novum Structures LLC, a customer of Dlubal Software, was responsible for the structural design and final planning as well as for the fabrication and assembly of the entire structure. For the structural analysis and design according to Chinese standard, engineers from Novum Structures used the programs RSTAB and STEEL GB.

Structure

The total area of ​​the roof is approximately 12,916.7 ft². Clad tree columns support Novum's Free Form System, which consists of rectangular hollow steel tubes and nodal steel disc connectors. For the columns, rectangular hollow sections or round tubes were used.

The roof cladding consists of triangular units of insulated glass (indoor area) and laminated glass (outdoor area). Perforated aluminum panels on the outside reduce the reflection of sunshine. The closure at the roof edges is accomplished with an aluminum bull nose with an integrated gutter.

The production and assembly of the roof structure were very challenging, as each part of the structure and the cladding is of a unique size.

Investor Erlebnis Akademie AG, Bad Kötzting, Germany
www.eak-ag.de/eakag
Investor Eskom Enterprises
Sandton, South Africa
www.eskom.co.za
Investor City of Laupheim, Germany


Project Specifications

Model data

Number of Nodes 495
Number of Members 1202
Number of Load Cases 20
Number of Load Combinations 168
Number of Result Combinations 3
Total Weight 82.024 tons
Dimensions 133.79 x 187.84 x 76.81 feet
Program Version 7.04.98

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