吊车轨道的材料由于其含碳量较高，强度大，可焊性较差，焊接时容易产生裂纹， 因此要严格按照工艺执行。
Material for rail of crane is of strong strength because of high carbon content, but of poor weldability, which makes more cracks. Strict technique is required in such welding.
竖杆式拱架支承结构起顶重量大，对吊车的起吊能力要求高，施工难度大。
The usual arch supporting structure requires high-capacity cranes to erect, and complicate constructing methods hard to meet.
当从猫道上提升体积大或较重的设备时，要检查气动绞车的额定工作负荷，或使用游车或吊车(如果有)。
When hoisting any large or heavy equipment off the catwalk always check the Working Load Limit (WLL) of the air winch, or use the travelling block or crane if available.
地下厂房岩锚梁开挖难度大、质量要求高，该部位成型质量的好坏将直接影响今后厂房内吊车的运行安全。
Technology of excavating anchoring rock beam is the most difficult and demanded in excavating underground factory, its quality will affect its safety of performing later.
通过对某工程实例吊车荷载作用下排架侧向位移的计算，证明桩的变形对排架侧向位移影响较大，尤其桩顶转角的影响大。
The analysis of a crane load example shows that the pile deformation, especially the pile top rotation, greatly influence the frame lateral displacement.
本实用新型的目的在于提供一种合金大锭模芯，以克服合金大锭不便于桥式吊车机械手抓吊的弊端。
Objective of the utility model is to provide an alloy big ingot mould core to overcome the problem that alloy big ingot is not suitable for gantry crane manipulator grasping.
在设有大吨位吊车系统的重型厂房中，吊车梁用钢量所占比例较大，对吊车梁的优化设计对工程造价影响很大，大跨多跨重型厂房吊车梁宜采用突缘变截面简支结构。
The weight of steel for crane beam has a great proportion in the total amount consumed in the construction of the heavy-duty plant with large-tonnage cranes.
在设有大吨位吊车系统的重型厂房中，吊车梁用钢量所占比例较大，对吊车梁的优化设计对工程造价影响很大，大跨多跨重型厂房吊车梁宜采用突缘变截面简支结构。
The weight of steel for crane beam has a great proportion in the total amount consumed in the construction of the heavy-duty plant with large-tonnage cranes.
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