C100高强混凝土框架-核心筒消能减震结构抗震性能研究

我国现行建筑抗震设计规范中要求结构（构件）在满足承载力的同时，需具备足够的变形能力，但是由于高强材料在延性上的不足，高强混凝土结构构件可能无法同时满足以上要求。为充分发挥高强混凝土竖向构件承载力，基于设置消能减震装置集中耗能降低结构地震响应的方法，对7度设防区C100高强混凝土框架-核心筒消能减震结构抗震性能进行研究。结果表明：在罕遇地震作用下，C100高强混凝土框架-核心筒结构竖向构件基本保持在弹性工作状态，消能减震技术可有效降低地震作用，保证结构的抗震安全；通过不同消能减震方案对比分析得到，在加强层以及结构剪切变形较明显的楼层布置合理数量的黏滞阻尼器减震效果最好。

Research on seismic performance of frame-core tube energy dissipation structure with C100 high-strength concrete

The current code fir seismic design of buildings requires that the for structures have to possess sufficient deformation capacity while meeting the requirements for bearing capacity. Due to the lack of ductility of high-strength materials, high-strength concrete structural members may not meet the requirements above at the same time. A concept of earthquake resistance is proposed, which gives full play to the bearing capacity of high-strength concrete vertical members, the energy dissipation device was set up to reduce the seismic response of the structure. The seismic performance of C100 high-strength concrete frame-core tube energy dissipation structure in 7-degree intensity area was studied. The results show that under the action of rare earthquake, most of the vertical members of C100 high-strength concrete frame-core tube structure remain in elastic stage. The energy dissipation technology can effectively reduce the earthquake action and ensure the seismic safety of the structure. Through the comparative analysis of different energy dissipation schemes, a reasonable number of viscous dampers arranged in the reinforcement layer and on the floor with obvious shear deformation will have best damping effect.