在铁道部现行的有关设计和施工规范中,对于铁20锰硅钢筋焊接接头的要求,尚有不尽一致之处。这样,对于具体实施带来了矛盾。笔者对此问题的体会如下: 《铁路桥涵设计规范》(TBJ2—85)第5.4.6条规定:“当直径大于25mm的光钢筋以及所有螺纹钢筋的接头均应采用焊接”。铁20锰硅钢筋为螺纹钢筋,理应采用焊接,但到底 In the current Ministry of Railways related to the design and construction specifications, there are still some inconsistencies in the requirements for iron-20 manganese-silicon steel welded joints. In this way, it brings contradictions to the concrete implementation. My understanding of this issue is as follows: “Railway Bridge Culvert Design Code” (TBJ2-85) Article 5.4.6 states: “When the diameter of more than 25mm steel and all the rebar joints should be welded.” Iron 20 manganese silicon rebar reinforcement, welding should be used, but in the end