| Performance-based seismic design method can not only propose the capacity requirement, but also set a desired deformation limit according to the needs of the owener to design the structure, so that can reduce the losses that caused by the earthquake. It has been an importance direction of the developing of the seismic code for various countries. RC shear walls are usually the important component to resist lateral force in the high-rise building structures. And they performan as the first seismic fortification, so it is very important to design the RC shear walls to have good seismic performance in the permise of ensuring safety and reducing economic loss. RC shear walls that are designed based on bearing-capacity method have a certain reliability in ensuring the capacity, but it is unable to assess structural damage in the earthquake.In order to study the seismic performance of shear wall components and the deformation performance index limit, this article designs 12 RC shear wall components for pseuso-static test. The main contents in this paper are as follows:1. According to the current codes, 12 RC shear walls,with different shear span ratio, ratio of longitudinal reinforcement in concealed column, axial compression ratio, were designed for pseuso-static test, to research the seismic performance of RC shear walls, as well as the failure mode, failure processes.2. According to the failure mode of the specimens, this article evaluates the failure pattern classification of shear wall components, which proposed by ASCE41-13 and the early study of our group. By collecting the failure mode of 443 RC shear walls which tested at home ande abroad, the failure pattern classification of shear wall components was corrected, which was a more accurate classification method.3. With reference to the Chinese code and our group’s early study to the classification of the performance states of RC components, 6 performance states and the drift limit of each performance state were given according to the results of the RC shear walls tested in this article. This article also proposed a new way, the skeleton curve way, to determine the drift limit of each performance state. The drift limits determined by the new way were compared with that determined by the phenomenon of test, which was verified that the new way was rational.4. According to the results of the test, the limit drift proposed by Qi Yongle, which was based on the material strain, were evaluated. And a correction limit drift were given on the basis of the result of evaluation.5. According to the results of the test, this article would evaluate the performance index carried out by four ways, which contained ASCE41-13, EC8, Qi Yongle’s and poposed in this article. It turned out that the drift limit proposed in this article was the best to fit the result of the test, and that proposed by ASCE41-13 was the most conservative. |
