密肋复合墙体抗震性能及设计理论研究

结合课题组前期的研究成果,就一种新型结构的主要受力构件——密肋复合墙体的抗震性能及设计理论进行研究．介绍墙体的主要破坏形式,提出墙体的三阶段受力模型,给出墙体的恢复力模型,探讨墙体的抗震设计方法,并提出相应的施工构造要求．理论分析与试验研究表明：墙体的破坏形式主要分为剪切型破坏、弯曲型破坏,其中剪切型破坏属于合理的破坏形式;墙体中的砌块、框格及框架,能够在试验的不同阶段依次发挥作用,具有多道抗震防线,体现出良好的抗震性能;墙体的抗震设计方法体现出抗震控制设计思想,墙体的施工构造保证了结构的整体性能．

Analyses of seiemic performance and the design method of multi-rib slab

On the basis of previous study, this paper presents a research on the aseismic performance and design theory of multi-ribbed slab wall ,which is the main bearing member of a new structure. It introduces the main failure modes of the wall, suggests the three-staged mechanical mode, gives the restoring force mode, discusses the aseismic design method, and brings forward the relevant constructional requirement. Theoretic analysis and experiment show that the main failure modes of the wall can be classified into the shearing failure mode and bending failure mode, with the former being a reasonable failure mode. Infilled bricks, ribs and frame in the wall can exert their effects at different stages of the experiment. Therefore, the multi-ribbed wall has multi-line to actagainst earthquake, and represent favorable aseismic performance. The aseismic design method of the wall highlights the idea of aseismic control, and the construction measure assures the whole performance of the structure.