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双钢筋技术首先由奥地利研究成功,后为西德、英国、瑞士、瑞典、葡萄牙、匈牙利、罗马尼亚和南斯拉夫等国所引进,已广泛用于预制构件、现浇结构和构筑物,取得了良好的效果。所谓双钢筋,即由两根纵向的低碳冷拔钢丝(或钢筋)与短横筋焊成梯格状,是一种用于非预应力钢筋混凝土结构的新型钢筋。它对混凝土有很好的锚着力,保证了与混凝土的共同工作,因而改善了结构性能;同时,也使低碳冷拔钢丝(或钢筋)的强度
The double-reinforcement technology was first successfully researched in Austria and later introduced in West Germany, the United Kingdom, Switzerland, Sweden, Portugal, Hungary, Romania and Yugoslavia. It has been widely used in prefabricated components, cast-in-place structures and structures, and has achieved good results. . The so-called double steel bar, which is welded by two vertical low-carbon cold-drawn steel wires (or steel bars) and short transverse bars into a lattice shape, is a new type of steel bar used in non-prestressed reinforced concrete structures. It has good anchoring force for concrete, ensures joint work with concrete, and thus improves structural performance; at the same time, it also makes the strength of low-carbon cold-drawn steel wire (or steel)