随着我国预应力钢筋混凝土结构的不断发展,高强钢丝和硅锰系调质钢筋在建筑工程上的广泛应用,这给预应力锚具带来一些新的课题。1974年我厂在建国门外新高层公寓梁板的施工中设计了可以张拉20根?5高强钢丝和张拉10根?8 40硅2锰钢筋的通用锚具(图1、2)。 为了加工方便把锚具设计成组合式,零 With the continuous development of prestressed reinforced concrete structures in China, high-strength steel wires and silicon-manganese-based quenched and tempered steel bars are widely used in construction projects, which brings some new issues to prestressed anchorage devices. In 1974, our factory designed a universal anchoring device that can tension 20 high-strength steel wire and 10 steel wire and 8 40 silicon 2 manganese steel bars in the construction of new high-rise apartment beams and slabs outside Jianguomen (Figure 1, 2). For ease of processing, the anchors are designed to be modular, zero