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吊车梁与柱子的连接和钢轨与吊车梁的连接结构的选择,在钢吊车梁和钢筋混凝土吊车梁中,都具有极重要的意义。在钢吊车梁的使用方面,已经积累了很多经验;但对钢筋混凝土特别是装配式钢筋混凝土吊车梁的工作情况,还研究的不够。目前有些钢筋混凝土吊车梁的标准节点和连接是不能令人满意的。譬如焊在用道钉固定在机木上的钢垫钣上的铁路钢轨老式连接法,就是如此。
The selection of the connection between the crane girder and the column and the connection structure between the rail and the crane girder is of great significance in the steel crane girder and the reinforced concrete crane girder. Many experiences have been accumulated in the use of steel crane beams; however, insufficient research has been done on the working conditions of reinforced concrete, in particular reinforced concrete crane beams. At present, the standard nodes and connections of some reinforced concrete crane beams are unsatisfactory. This is the case, for example, for the old-fashioned connection of railroad rails welded to steel pads on roads with spikes.