潘  立     （中国建筑科学研究院建筑结构研究所  北京100013）

[提要]  双锥面膨胀锚栓（SZM建筑锚栓）是在研究现有各类膨胀锚栓的基础上，结合力学试验结果和工程应用经验，设计开发出的高性能锚栓新产品。详细介绍了这种锚栓的构造特征、工作原理、使用方法、性能指标和应用条件，并将其与HILTI（喜利得）和fischer(慧鱼)的同类产品进行了比较。
[关键词]  膨胀锚栓  混凝土基材  后连接  后续膨胀  抗拉拔承载力  抗剪切承载力

Based on research about the same kind of expansion anchors which are widely used in construction, combined with the results of necessary mechanical experiments and experiences, a new type of double-cone expansion anchor( SZM expansion anchor)is designed and introduced about the structural characteristic, working principle, using method, performance quota and using condition of the anchor in detail. The bearing capacity of SZM anchor is larger than that of the similar products of famous HILTI and fischer in main targets.
Keywords: expansion; anchor; concrete  anchoring  base; steel-concrete  connection; tension; shear; strength