Multiple-damage state retrofit of steel MRFs with composite beams using a minimal-disturbance arm damper

Research output: Contribution to journalArticlepeer-review

Standard

Multiple-damage state retrofit of steel MRFs with composite beams using a minimal-disturbance arm damper. / Marzano, Giuseppe A.; Skalomenos, Konstantinos A.; Kurata, Masahiro.

In: Journal of Structural Engineering (United States), Vol. 146, No. 9, 04020169, 09.2020.

Research output: Contribution to journalArticlepeer-review

Harvard

APA

Vancouver

Author

Bibtex

@article{62efb249ff144cb98956e6ae6167a010,
title = "Multiple-damage state retrofit of steel MRFs with composite beams using a minimal-disturbance arm damper",
abstract = "This study presents a design method for the seismic retrofit and rehabilitation of steel moment-resisting frames (MRFs) with composite steel-concrete beams using the minimal-disturbance arm damper (MDAD). The purpose is to enhance the seismic performance of this type of MRF by controlling both the overall structure deformation (roof and story drifts) and damage of individual members (local ductility). The MDAD imposes adequate strength and stiffness to limit the story drifts to the targeted values as well as redistributes the internal forces in order to delay beam yielding and fracture. The proposed design method for seismic retrofit and rehabilitation of MRFs integrates the member's strength and ductility indices, such as the bending moment and plastic rotation, into the global frame response in terms of overall shear capacity and story drift through equations developed based on beam-column theory principles. The proposed design method aims to retrofit the structure to satisfy multiple performance objectives, such as (1) the delay of steel beam yielding, (2) the reduction of beam plastic rotation, (3) the control of strength reduction in postfracture behavior, and (4) the recovery of overall shear strength after frame rehabilitation. An experimental campaign was also conducted to evaluate the performance of both retrofitted and bare MRFs. The effectiveness of the proposed retrofit and rehabilitation procedure in limiting the story deformation and improving member ductility of the MRFs as well as its efficiency in recovering the overall strength capacity of heavily damaged framed structures was validated.",
keywords = "Composite steel-concrete beam, Experimental validation, Multiple-damage state, Postfracture behavior, Seismic retrofit",
author = "Marzano, {Giuseppe A.} and Skalomenos, {Konstantinos A.} and Masahiro Kurata",
year = "2020",
month = sep,
doi = "10.1061/(ASCE)ST.1943-541X.0002697",
language = "English",
volume = "146",
journal = "Journal of Structural Engineering",
issn = "0733-9445",
publisher = "American Society of Civil Engineers",
number = "9",

}

RIS

TY - JOUR

T1 - Multiple-damage state retrofit of steel MRFs with composite beams using a minimal-disturbance arm damper

AU - Marzano, Giuseppe A.

AU - Skalomenos, Konstantinos A.

AU - Kurata, Masahiro

PY - 2020/9

Y1 - 2020/9

N2 - This study presents a design method for the seismic retrofit and rehabilitation of steel moment-resisting frames (MRFs) with composite steel-concrete beams using the minimal-disturbance arm damper (MDAD). The purpose is to enhance the seismic performance of this type of MRF by controlling both the overall structure deformation (roof and story drifts) and damage of individual members (local ductility). The MDAD imposes adequate strength and stiffness to limit the story drifts to the targeted values as well as redistributes the internal forces in order to delay beam yielding and fracture. The proposed design method for seismic retrofit and rehabilitation of MRFs integrates the member's strength and ductility indices, such as the bending moment and plastic rotation, into the global frame response in terms of overall shear capacity and story drift through equations developed based on beam-column theory principles. The proposed design method aims to retrofit the structure to satisfy multiple performance objectives, such as (1) the delay of steel beam yielding, (2) the reduction of beam plastic rotation, (3) the control of strength reduction in postfracture behavior, and (4) the recovery of overall shear strength after frame rehabilitation. An experimental campaign was also conducted to evaluate the performance of both retrofitted and bare MRFs. The effectiveness of the proposed retrofit and rehabilitation procedure in limiting the story deformation and improving member ductility of the MRFs as well as its efficiency in recovering the overall strength capacity of heavily damaged framed structures was validated.

AB - This study presents a design method for the seismic retrofit and rehabilitation of steel moment-resisting frames (MRFs) with composite steel-concrete beams using the minimal-disturbance arm damper (MDAD). The purpose is to enhance the seismic performance of this type of MRF by controlling both the overall structure deformation (roof and story drifts) and damage of individual members (local ductility). The MDAD imposes adequate strength and stiffness to limit the story drifts to the targeted values as well as redistributes the internal forces in order to delay beam yielding and fracture. The proposed design method for seismic retrofit and rehabilitation of MRFs integrates the member's strength and ductility indices, such as the bending moment and plastic rotation, into the global frame response in terms of overall shear capacity and story drift through equations developed based on beam-column theory principles. The proposed design method aims to retrofit the structure to satisfy multiple performance objectives, such as (1) the delay of steel beam yielding, (2) the reduction of beam plastic rotation, (3) the control of strength reduction in postfracture behavior, and (4) the recovery of overall shear strength after frame rehabilitation. An experimental campaign was also conducted to evaluate the performance of both retrofitted and bare MRFs. The effectiveness of the proposed retrofit and rehabilitation procedure in limiting the story deformation and improving member ductility of the MRFs as well as its efficiency in recovering the overall strength capacity of heavily damaged framed structures was validated.

KW - Composite steel-concrete beam

KW - Experimental validation

KW - Multiple-damage state

KW - Postfracture behavior

KW - Seismic retrofit

UR - http://www.scopus.com/inward/record.url?scp=85086820606&partnerID=8YFLogxK

U2 - 10.1061/(ASCE)ST.1943-541X.0002697

DO - 10.1061/(ASCE)ST.1943-541X.0002697

M3 - Article

AN - SCOPUS:85086820606

VL - 146

JO - Journal of Structural Engineering

JF - Journal of Structural Engineering

SN - 0733-9445

IS - 9

M1 - 04020169

ER -