The geometry of the structure and internal bar forces under varying service load situations or prestressing actually impact on the structure’s serviceability. Or else, prestressed cable structures are defined by the joint locations and delicate to external stimuli due to their high flexibility and light weight, and the shape distortion is supposed unacceptable. Consequently, based on the force method, the displacement control through updating coordinates of the structure and optimization on the form of quadratic programming is suggested to attain the nonlinear displacement control (NDC) of the geometrically nonlinear systems (including prestressed cable structures). The technique preserves the prestress level in the structural bar elements to any level required. The proposed method has been compared with other prior NDC techniques corresponding to the requirements. It shows that the computational results of the current approach are in good response with the previous NDC techniques. The method can exactly achieve the target values without any significant errors for the corresponding outcomes. Simultaneously, the technique keeps the prestress level of the structural members to the targeted level. The proposed approach technique also proved to control both small and large displacement without any remarkable error.

结构的几何形状和在不同使用载荷情况下或预应力下的内部钢筋力实际上会影响结构的使用性能。否则，预应力索结构由节点位置决定，由于其高柔韧性和重量轻而对外部刺激敏感，并且形状变形被认为是不可接受的。因此，基于力法，建议通过更新结构坐标和优化二次规划形式的位移控制来实现几何非线性系统（包括预应力索结构）的非线性位移控制（NDC）。该技术将结构杆元件中的预应力水平保持在所需的任何水平。已将所提出的方法与符合要求的其他现有 NDC 技术进行了比较。这表明当前方法的计算结果与以前的 NDC 技术反应良好。该方法可以准确地达到目标值，对相应的结果没有任何显着的误差。同时，该技术将结构构件的预应力水平保持在目标水平。所提出的方法技术也被证明可以控制小位移和大位移，而没有任何显着的误差。该技术将结构构件的预应力水平保持在目标水平。所提出的方法技术也被证明可以控制小位移和大位移，而没有任何显着的误差。该技术将结构构件的预应力水平保持在目标水平。所提出的方法技术也被证明可以控制小位移和大位移，而没有任何显着的误差。