You can watch a video to see how they designed and made the sculpture, here.
The designer’s description
Dynamic Relaxation is simply lying on the top of hill behind the museum. It is a topological surface which invites people and opens to the outside surrounded by nature.
Also, the geometry of space reflects the topography of park landscape and the continuous curvature, which are the site-specific characters of park. It is a not only aesthetic sculpture but also a multi-purpose space for resting and climbing, hanging, exercising for everyone.
The basic geometry started from a trefoil knot, which consists of three Möbius Strips between three strands of pipe. The pipes were twisted accurately and structured by triangular sections with transforming sizes and angles along the base geometry. All structures were modularized by 21 components and each one was fabricated and welded at factory.
The pre-assembled modules were finally assembled at site for two days, and then total 573m lengths of rope were installed to create the topological space. Finally, 367 triangular pieces of PVC vinyl were attached to the rope to provide UV protection under the structure. The official exhibition of Dynamic Relaxation extends to October, but it will stay at the site with people and nature permanently.