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Evaluation the P-Delta Effect on Collapse Capacity of Adjacent Structures Subjected to Far-field Ground Motions

Abstract

In urban areas, adjacent structures can be seen in any insufficient distance from each other, because of economic reasons ‎and refusal of acquired minimum separation distance according to seismic previsions. Collapse capacity assessment of ‎structures is one of the important objectives of performance-based seismic engineering. The purpose of this study is to ‎consider the pounding phenomenon and P-Delta effect in seismic collapse capacity assessment of structures. For this ‎purpose, 2-, 4-, 6- and 8-story adjacent structures with different conditions of separation distance among them, were ‎modeled in the OpenSees software. Furthermore, Incremental Dynamic Analyses (IDAs) were performed using 78 far-field ‎ground motion records to compute the collapse capacities of adjacent structures. The results obtained from IDAs for ‎adjacent structures show that during pounding, taller structure reaches its collapse capacity earlier than shorter one. In ‎addition, by considering the P-Delta effect and increasing the distance between adjacent structures, time of collapse and ‎number of impacts increases. According to results, considering the P-Delta effect in modeling has significant influence in ‎seismic collapse capacity assessment of pounding structures.‎

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Authors (3)

  • Photo of  Farzin Kazemi

    Farzin Kazemi

    • Imam Khomeini International University
  • Photo of  Benyamin Mohebi

    Benyamin Mohebi

  • Photo of  Mansoor Yakhchalian

    Mansoor Yakhchalian

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Category:
Articles
Type:
artykuły w czasopismach
Published in:
Civil Engineering Journal-Tehran no. 4,
ISSN: 2476-3055
Language:
English
Publication year:
2018
Bibliographic description:
Kazemi F., Mohebi B., Yakhchalian M.: Evaluation the P-Delta Effect on Collapse Capacity of Adjacent Structures Subjected to Far-field Ground Motions// Civil Engineering Journal-Tehran -Vol. 4,iss. 5 (2018), s.1066-
DOI:
Digital Object Identifier (open in new tab) 10.28991/cej-0309156
Verified by:
Gdańsk University of Technology

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