Modal-based ground motion selection procedure for nonlinear response time history analysis of dual wall-frame structures

Yang Liu, Qunxian Huang, Yang Liu, Zixiong Guo, Hao Kang, Xueying Wang

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1 Citation (Scopus)


The dual wall-frame structure consists of a structural wall system and a rigid frame system, and there is a strong interaction between the frame and wall systems in the top and bottom of structures. Therefore, the structural response of the dual wall-frame structures is entirely different from that of the single structural system. This paper presented a modification on the modal-based ground motion selection (MGMS) procedure for concerning the distinct structural behaviour of wall-frame structures to properly consider the effect of frequency contents combination in the time domain (FCCTD) of input ground motion (IGMs) in selecting IGMs for the nonlinear response time history analysis (NLRHA) of the structure. The MGMS procedure for wall-frame structures (MGMS-WF) employed a pseudo-first mode with a uniformly distributed mode shape and selected IGMs that induced the most significant interaction of the first three modes or the pseudo-first, second and third modes from a suite of seed IGMs for the NLRHA of wall-frame structures. A comprehensive case study was conducted involving four reinforced concrete (RC) wall-frame structures with different heights and combinations of wall and frame. To verify the capability of the MGMS-WF in consistently selecting proper IGMs for the NLRHA of wall-frame structures, design spectra and conditional mean spectra with various construction conditions were employed as target spectra to select and scale seed IGMs. The results show that the seismic demands of wall-frame structures computed using the MGMS-WF-IGMs have high yet consistent reliability.

Original languageEnglish
Pages (from-to)765-793
Number of pages29
JournalBulletin of Earthquake Engineering
Issue number2
Publication statusPublished - 3 Nov 2021


  • Modal-based ground motion selection
  • Nonlinear response time history analysis
  • Wall-frame structure


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