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1.Introduction Self-anchored suspension bridge provides an appealing architectural presence, and seems to become a symbol of the cities.Similar to conventional suspension bridges, self-anchored suspension bridges perform highly geometrically nonlinear behavior before attaining their equilibrium configuration during their construction.One of the fundamental targets that engineers concern about in designing of a self-anchored suspension bridge is to determine the configuration of main cables.Analytical method has been utilized to search for the configuration of main cables of traditional earth-anchored suspension bridges.However, as for the self-anchored suspension bridges, analytical method on simulating the construction process is more complicated for the reason that the anchored points of the main cables at the ends of the stiffening girder will move under the action of horizontal component of cable force.