TY - JOUR
T1 - Modal-based ground motion selection procedure for nonlinear response time history analysis of dual wall-frame structures
AU - Liu, Yang
AU - Huang, Qunxian
AU - Liu, Yang
AU - Guo, Zixiong
AU - Kang, Hao
AU - Wang, Xueying
N1 - Funding Information:
The financial supports from the National Natural Science Foundation of China under Grant No. 52108454, Research Start-up Fund for High-level Talents of Huaqiao University under Grant No. 20191XD042 are gratefully acknowledged.
Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer Nature B.V.
PY - 2021/11/3
Y1 - 2021/11/3
N2 - 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.
AB - 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.
KW - Modal-based ground motion selection
KW - Nonlinear response time history analysis
KW - Wall-frame structure
UR - http://www.scopus.com/inward/record.url?scp=85118563803&partnerID=8YFLogxK
U2 - 10.1007/s10518-021-01264-0
DO - 10.1007/s10518-021-01264-0
M3 - Article
AN - SCOPUS:85118563803
SN - 1570-761X
VL - 20
SP - 765
EP - 793
JO - Bulletin of Earthquake Engineering
JF - Bulletin of Earthquake Engineering
IS - 2
ER -