在钢筋混凝土结构工程中,为了保证钢筋和混凝土更牢固地结合,多年来一直采用钢筋两端头弯勾的方法。目前,随着镦粗头工艺在预应力钢筋混凝土构件中的广泛应用,为了改进施工工艺,节约钢材,便于运输,我们设想在钢筋混凝土结构工程中以镦头代替弯勾(图12)。为此,我们进行了锚固力试件试验和构件模拟试验。 In the reinforced concrete structure engineering, in order to ensure that the reinforcing steel and the concrete are more firmly combined, the method of bending the two ends of the steel bar has been adopted for many years. At present, with the extensive application of the rough head technology in prestressed reinforced concrete components, in order to improve the construction process, save steel materials, and facilitate transportation, we envisage using steel concrete heads instead of curved hooks in reinforced concrete structures (Figure 12). For this purpose, we conducted tests on anchorage test pieces and component simulation tests.