吊耳/耳轴

吊耳和耳轴是集成或安装于工业屋顶结构上的工程连接点，用于实现受控的吊装操作。它们设计用于承受特定载荷能力，均匀分布应力，并为吊索、卸扣或起重机吊钩提供安全连接点。耳轴通常具有圆柱形突起，允许旋转运动，而吊耳则是带有加强孔的固定板。这些组件必须根据结构计算精确定位并焊接或螺栓连接，以防止吊装过程中屋顶变形或失效。

吊耳和耳轴通过将起重机或提升装置的提升力经连接点传递至屋顶结构框架来工作。设计确保载荷分布在多个结构构件（如梁、柱）上，以防止局部应力集中。耳轴能够使被吊载荷枢转或旋转，减少扭转应力，而吊耳则提供固定的多方向锚点。正确的对齐和重心计算对于保持吊装操作中的稳定性至关重要。

Lifting lugs and trunnions operate by transferring lifting forces from cranes or hoists through the attachment point into the roof's structural framework. The design ensures load distribution across multiple structural members (e.g., beams, columns) to prevent localized stress concentrations. Trunnions enable pivoting or rotation of the lifted load, reducing torsional stress, while lugs provide fixed, multi-directional anchor points. Proper alignment and center of gravity calculation are critical to maintain stability during lifting operations.