High frequency seismic system for detailed mapping of sea floor 海底详细绘图高频地震系统
Binary encoded seismic system 二进制编码地震系统
This paper attempts to research the seismic behavior of joints between concrete - filled steel tubular core columns and prestressed concrete beams under reversed cyclic loads , in order to make the joints become a good kind of seismic system 本文旨在对钢管混凝土核心柱与预应力混凝土梁框架节点在低周反复荷载作用下的抗震性能进行研究,以便使这种节点最终成为一种完善的抗震体系。