From Theory to Practice : Design , Analysis and Construction of Dissipative Timber Rocking Post-Tensioning Wall System for Carterton Events Centre , New Zealand

This paper describes the structural design of the Carterton Events Centre, located approximately 100km north of Wellington, New Zealand. Primary focus is given to the structure’s seismic resistant system which consists of dissipative timber rocking post-tensioning walls. The auditorium features eleven of these walls, each 6.7m tall, 2.4m long and 180mm thick with a central slot for post-tensioned bars. Energy dissipation is provided by embedded mild steel rods. Detailed description of design philosophy, connection detailing and construction phases are herein deeply explained. As a final step of this collaborative design process, the University of Canterbury carried out nonlinear dynamic response history analysis as an additional check of the structural design. Simplified lumped plasticity models, already developed for concrete structures have been adopted to model the rocking walls. Results were consistent with the design procedure. Carterton Event Centre strengthened the belief of the authors in the potential of the Pres-Lam technology.

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