The behaviour of critical connections and core wall systems in tall timber buildings

In Australasia, the available mass timber products such as Cross-Laminated Timber (CLT) and Laminated Veneer Lumber (LVL) provide a great opportunity to build tall timber buildings. With increased building height and weight, the lateral performance of the buildings becomes more critical, and robust lateral load design must be achieved for safety and serviceability.

As design engineers work on larger force demand due to increased height and mass, they will face new challenges and problems that may fall out of current timber design codes. In particular, when these buildings are constructed in a high-seismic country like New Zealand, their seismic performance becomes a major concern and robust lateral force resisting systems must be designed.

In tall timber buildings, lift shafts or staircases formed by the mass timber panels can be also designed as core-wall systems to provide high lateral strength and stiffness. This project will evaluate the performance of timber core-walls and provide technical information to guide core-wall design in tall timber buildings, with and without the incorporation of low-damage seismic design technology. 

Structure

Project Researchers

  • Understand the behaviour of critical connections in timber core-walls.
  • Understand the performance of timber core-walls with and without low-damage seismic design technology implemented.
  • Develop design solutions of timber core-walls with enhanced strength, stiffness and ductility. 
Project Partners: