Analysis method of pier failure model for quickly dismantling short-pier connected arch bridge

The invention provides an analysis method of a pier failure model for quick dismantling of a short-pier connected arch bridge, and belongs to the technical field of dismantling of the short-pier connected arch bridge. The structure size parameters and the material volume weight of the short-pier connected arch bridge are actually measured, a pier stud of the short-pier connected arch bridge is used as an analysis object, and besides the self-weight and the vertical load transmitted from the top of the pier, the pier failure model is analyzed; when the thrust borne by the bridge pier is larger than the shear strength of the bridge pier, the whole bridge pier is subjected to shear failure. The whole short pier connected arch bridge can be collapsed, the construction period is greatly shortened, the equipment and labor cost is reduced, the pier is symmetrically and synchronously cut under the condition that the arch bridge structure is intact and is in a symmetrical stress state, the influence on the structure s