Architectural arched roofs are widely used for factories, warehousing and logistics warehouses, sports facilities, farmer's markets, parking garage, and more. They boast column-free and spacious interiors, allowing for easy partitioning and customization, and are convenient to use. With their lightweight design, high stiffness, excellent ductility, and superior seismic performance, these roofs are a superior choice.

Arched roofs also exhibit actual load-bearing effectiveness. The load carried by the arch varies, resulting in different pressure curves. Typically, the pressure curve under constant load is clearly defined. Under live load conditions, the arch's force generates bending moments, at which point the hinge settings affect the distribution of internal bending moments within the arch. Similar to rigid frames, unhinged arches are only used when the subgrade is excellent or when there is a stable side span structure on both arch limbs, and they are rarely employed in construction. Double-hinged arches are more commonly used. To accommodate settlement differences between rubber bearings on soft foundations and arch supports' deformation, a statically determinate three-hinged arch is chosen.

The arch transmits external forces to the rubber support through curved rods, thus the hinge rubber support not only bears longitudinal forces but also experiences a significant outward thrust at the arch foot. This thrust is located at the discontinuity of the arch axis curve at the rubber support point. The presence of thrust is one of the key structural mechanical characteristics, with the thrust increasing as the rise height 'f' decreases. In a statically indeterminate double-hinged arch, both vertical and horizontal displacements of the rubber support can cause a change in the force. This makes the requirement for the rubber support to remain displacement-free under thrust conditions even more stringent. It is evident that to ensure the arch operates normally, it is crucial to ensure that the rubber support can withstand the thrust without displacement. Therefore, the structural solution for the arch foot thrust is a management challenge in the overall design of the arch.