The main objective of the aforementioned method is to solve the complicated problem of feasible prestress distribution in cable-strut tensile structures with multi states of self-equilibrium stress and modes of mechanism displacement.

The calculating of initial prestress distribution is basic and important for analyzing of double-layer cable structure.

The least square method is used to decide the initial prestress distributions in tension\|rod & truss supported glass curtain, and the numerical models of tension\|only element and continuous cable are deduced, at the same time, the stability of tension\|rod & truss support system is discussed.

The prestress distribution in the reference configuration which is explicitly defined by the designer can be effectively found by using the method of this paper.

Considering its complex geometric topology,multi states of self-equilibrium stress and modes of inextensional mechanisms,a prestress optimization strategy was proposed to solve the final feasible prestress distribution problem of the structures with multi states of s.

The concept of the integrity feasible prestressing is adopted and three different optimal design are studied on the cable-dome structures, which include prestress optimal design, section optimal design and shape optimal design.

A new force finding method named imbalance force iterative method is proposed,which breaks some limitations of integrity feasible prestressing method.