Dlubal Software

Los Angeles Football Club Soccer Stadium Aluminum Grandstands, Los Angeles, CA, USA

The removable grandstands are surrounded on three sides by precast seating risers in the north endzone of the Los Angeles Football club soccer stadium. The grandstands are a free-standing system. The system is comprised of aluminum trusses, which are demountable from aluminum towers.

The clear span between the single towers amounts to approximately 16 ft. The majority of the members are aluminum square and rectangular tubes. The towers are attached to the concrete substrate via internally threaded inserts epoxied into the concrete, resulting in a flush surface when the system is removed.

The design in this area required Trex Commercial Products to provide folding seats and a guard rail to allow for safer spectator standing areas. The folding seats integrate into guard rail units, and these are attached to the front of the aluminum risers.


The primary design challenges were based on the materials used and the use of the structure. The structure was welded aluminum, such that reduced properties had to be considered in the weld zones, which was possible using the ALUMINUM ADM add-on module for RSTAB. DYNAM Pro was utilized to analyze the natural vibration modes and the performance of the structure subjected to significantly demanding rhythmic activities by spectators.

Project Specifications

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