The tensile bearing of grid structure is the tensile bearing used in steel structure engineering. At present, there are several ways for the grid support in shopping malls: the grid support commodity basin-type tension and compression support transformed from highway basin-type rubber support, and the structure of the upper support plate and bottom basin of the support is slightly adjusted to complete the tensile and horizontal force resistance of the support, and the corner of this commodity is small, usually 0.02 arc.
根据上部结构与支架旋转中心的对应位置,球面旋转方向可以与平面滑动方向相同或相反。如果两个转动中心重合,平面上就不会有滑动。支座转动时,首先发生在球面板和球面四氟板上,然后在平面四氟板上滑动,因此球面支座特别适用于转角要求较大的桥梁。空间桁架球铰支座和钢结构球铰支座的竖向承载力、水平承载力、位移、转角和摩擦系数应满足支座设计要求。固定轴承和单向活动轴承之间在非活动方向上的设计滑动间隙为0.5毫米..球铰轴承的设计转角:0.02rad沿桥梁方向; 横桥向为0.01rad,工作温度范围:-50℃~ 60℃。可以在20‰的坡道上使用。在坡道上使用时,可采用支座顶板坡度调整或梁底混凝土调整。调整后,线路坡度与支座顶板坡度之差不应大于4‰,球铰活动支座摩擦系数在温度高于-25℃时μ≤0.03,低于-25℃时μ≤0.05。