Due to the high tonnage and large span of the whole steel space frame, process and fabrication of the steel space frame shall be strictly precise.

由于整个钢网架的吨位重、跨度大，所以，对钢网架的加工制作精度方面要求非常严格。

youdao

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。

youdao