Assessment of the Realistic Stiffness and Capacity of the Connections in Quincha Frames to Develop Numerical Models

Researchers have developed a finite element model to accurately represent the seismic behavior of quincha frames, a traditional Peruvian construction technique combining timber and cane-mud infill. The study found that modeling connections between beams and posts as semi-rigid springs, with stiffness calculated using the component method, closely matched experimental results. This approach allows for precise quantification of the frame's contribution to overall structural performance before integrating the infill material, which remains challenging to characterize. The findings provide a foundation for better understanding the seismic resilience of historic structures in Lima, many of which feature this vulnerable construction technique.

Quinn, N., & D’Ayala, D. (2013). Assessment of the Realistic Stiffness and Capacity of the Connections in Quincha Frames to Develop Numerical Models. Advanced Materials Research, 778, 526–533. https://doi.org/10.4028/www.scientific.net/amr.778.526