预应力钢铰线群锚张拉锚固体系(简称“QM体系”)是由中国建筑科学研究院建筑结构研究所负责,广东省公路工程处、柳州市建筑机械厂协作研制成功的现代预应力技术。“Q M体系”是多种后张法预应力体系之一。它以钢铰线束做预应力筋,钢铰线束在结构构 The pre-stressed steel hinge group anchor tension anchorage solid system (abbreviated as “QM system”) is under the charge of the Institute of Building Structures, China Academy of Building Research, and the pre-construction cooperation between the Guangdong Highway Engineering Office and the Liuzhou Construction Machinery Plant. Stress technology. The “QM system” is one of many post-tensioning prestressing systems. It uses prestressed steel ribs as prestressing ribs.