Fig. 12

Optimized structure of the steel arch splicing mechanism (Fig. 12(b) was designed and rendered using SOLIDWORKS 2015; https://www.3ds.com/products-services/solidworks/).

Optimized structure of the steel arch splicing mechanism (Fig. 12(b) was designed and rendered using SOLIDWORKS 2015; https://www.3ds.com/products-services/solidworks/).