MULTI-PARAMETER RESILIENCE EVALUATION INDEX OF RETICULATED SHELL STRUCTURES

With the development of seismic design concepts, seismic resilience has received an extensive attention from researchers and has gradually become a hot topic in earthquake engineering. In view of the deficiencies in the Standard for Seismic Resilience Assessment of Buildings and according to the damage characteristics and maintenance methods for the reticulated shell structures after earthquakes, the damage grades of the structural and non-structural components of the reticulated shells are defined, and some calculation parameters of each index in the Standard are revised. Through 108 groups of comprehensive reticulated shell examples, the multi-parameter resilience evaluation index and grade division suitable for reticulated shells are obtained by fitting. The index values (R) at the four critical points are 1.0, 1.6, 2.0, and 2.7, respectively. Two large-scale shaking table tests and several randomly selected reticulated shell examples are used to verify the universality and effectiveness of the resilience evaluation index and classification. The results show that: the multi-parameter resilience evaluation index is comprehensive and reasonable, can quantitatively describe the resilience of reticulated shells after earthquakes, and can serve the seismic resilience and resilience evaluation system of reticulated shells. © 2024 Tsinghua University. All rights reserved.