Los Angeles Football Club Soccer Stadium Aluminum Grandstands, Los Angeles, CA, USA
Customer Project
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.
| Owners | Larry Berg, Brandon Beck, Bennett Rosenthal, Peter Guber, Tom Penn, Henry Nguyen, Ruben Gnanalingam, Vincent Tan, Will Ferrell, Mia Hamm Garciaparra, Nomar Garciaparra, Earvin Johnson, Goodwin Gaw, Chad Hurley, Tucker Kain, Kirk Lacob, Mitch Lasky, Mark Leschly, Mike Mahan, Marc Merrill, Irwin Raij, Tony Robbins, Lon Rosen, Paul Schaeffer, Brandon Schneider, Allen Shapiro, Mark Shapiro, Jason Sugarman, Joe Tsai, Harry Tsao, Rick Welts |
| Architect |
Gensler, USA www.gensler.com |
| Structural Analysis & Design |
Trex Commercial Products, USA www.trexcommercial.com |
| Assembly | Harriot Contracting LLC, USA |
Dimensions of One Grandstand
Model
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 guardrail to allow for safer spectator standing areas. The folding seats integrate into guardrail units, and these are attached to the front of the aluminum risers.
Design
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 Location
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New
Aluminum Design Manual (ADM) 2020 Updates in RF-/ALUMINUM ADM
The Aluminum Design Manual (ADM) 2020 was released in February 2020. The ADM 2020 gives guidance for both the allowable strength design (ASD) and load and resistance factor design (LRFD) for aluminum members to ensure reliability and safety for all aluminum structures.
New
Depending on stiffness, mass, and damping, structures react differently to wind action.
- How is it possible to make factorized combinations of a dead load in the context of form‑finding?
- My aim is to mesh a circular hole plate in a mapped way. Is such a meshing possible in RFEM?
- Can the reduction of strength in the heat affected zone (HAZ) be taken into account in the RF-/ALUMINUM add-on module?
- SHAPE‑THIN calculates a very small shear area. Why?
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My member is oriented at the inclination of principal axis when I import from SHAPE-THIN to a 2D RFEM model. How do I fix this?
- How can I get the member end forces to design the connections?
- I would like to calculate and design "temporary structures." What do I need for this?
- How is an inflatable object simulated in RFEM?
- I would like to design an aluminum or lightweight structure. Is it possible to use RFEM or RSTAB for this?
- Which Dlubal Software programs are required to calculate membrane and tensile structures?
Programs Used for Structural Analysis
Main Program
The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions
2,550.00 USD
Add-on Module
Design of aluminium members according to the American standards ADM 2010 and ADM 2015
1,480.00 USD
Add-on Module
Dynamic analysis of natural frequencies and mode shapes of member models
850.00 USD
