张力杆，又称导布杆。平幅进布装置组成部件。由相互平行的三支或两支钢管或木杆固定安装于进布机架上，其作用原理与紧布器相同，由于不能调节织物在杆面上的卷绕角，其效果仅在一定范围内增加进机运行平幅织物的经向张力。
确切地说，在由支杆、圆杆、绳索构成的精妙布局中，帆船满载着压力和张力。
Loaded, that is, with compressive and tensile stresses in an exquisitely choreographed dance of struts, spars and cables.
索杆张力结构是指由张力索和压杆组成的、具有预应力自平衡的新颖结构体系。
The cable strut tensile structures are the self stress equilibrium systems composed by tensional cables and struts.
文中以拉索张力和杆件截面为设计变量，提出了预应力网架结构的优化模型，并给出了具体的优化设计步骤。
With optimization of pull cables and element sections as design variables, an optimization model and design approach for pre-stress space tress structures were obtained.
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