Numerical Analysis of the Seismic Performance of Rigid Beam-To-Column Moment Connections Equipped with Steel Slit Damper (SSD)

Hosseini, Mahdi; Haitao, Li; Corbi, Ileana; Corbi, Ottavia

doi:10.1590/1679-78256994

Mahdi Hosseini

Department of Building Engineering, College of Civil Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China. E-mails: mahdi.struct@njfu.edu.cn, lhaitao1982@126.com

https://orcid.org/0000-0003-0850-496X

Li Haitao

Department of Building Engineering, College of Civil Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China. E-mails: mahdi.struct@njfu.edu.cn, lhaitao1982@126.com

https://orcid.org/0000-0003-1621-4751

Ileana Corbi

Dipartimento di Strutture per l'Ingegneria e l'Architettura, Università degli Studi di Napoli Federico II, Napoli 80138, Italy. E-mails: ileana.corbi@unina.it, ottavia.corbi@unina.it

Ottavia Corbi

Dipartimento di Strutture per l'Ingegneria e l'Architettura, Università degli Studi di Napoli Federico II, Napoli 80138, Italy. E-mails: ileana.corbi@unina.it, ottavia.corbi@unina.it

*Corresponding author.

Authors contribution: Investigation, H Li and H Mahdi ; Conceptualization, H Li; Funding acquisition, H Li; Formal analysis, H Li and H Mahdi ; Writing - original draft, H Li and H Mahdi; Supervision, H Li, C Ileana and C Ottavia; review & editing, C Ileana and C Ottavia

Editor: Marcílio Alves

Structural Elements
	Element	Unit	Magnitude
	h	mm	400
Column	b	mm	408
H-400x400x21x21	t_f	mm	21
	t_w	mm	21
	h	mm	582
Beam	b	mm	302
H-582x300x12x17	t_f	mm	17
	t_w	mm	12

Material	Section	Yield Strength	Ultimate Strength	Elongation	Reduction Area
Material	Section	Mpa	Mpa	%	%
KS SS400	Beam Web	339	488	27	70
	Beam Flange	318	480	30	67
	Slit Damper	208	464	30	63
SM490	Column Web	395	554	27	74
	Column Flange	378	551	24	71
	Split-T Web	388	577	25	71
	Split-T Flange	386	573	24	69
F10T	Bolt	900	1000	14	40

Geometrical Properties			Mechanical Properties			Load-bearing Capacity
σ_y	Mpa	208	l_b	mm	3300	Q_y	N	76931
σ_u	Mpa	464	l_d	mm	620	M_y	N.mm	2.54E+08
H_T	mm	140	l_b2	mm	310	Q_u	N	171615
H	mm	100	l_b1	mm	2855	M_u	N.mm	5.66E+08
B	mm	30	l_st	mm	130.5	θ_y	rad	0.003322
t	mm	19	d_st	mm	816
r	mm	20	_wA	mm²	6576
n	No.	16	_b1I	mm⁴	978835992
H'	mm	105.7	_b2ỹ	mm	225.5
P_y	N	269163	_b2I	mm⁴	63015977
P_u	N	600441	_stI	mm⁴	1429167
δ_y	mm	0.443	_b1K^-1	mm/N	0.000043
			_b2K^-1	mm/N	0.000072
			_conK^-1	mm/N	0.000027
			_stk^-1	mm/N	2,26E-07
			_dk^-1	mm/N	1,65E-01
			_conk^-1	mm/N	1,65E-01
			K^-1	mm/N	0.000143

Subject	Constant Case		Variable Case		Ratio	Model Name
Subject	Name	Value	Name	Value	Ratio	Model Name
Beam Aspect Ratio	Beam Height	582	Beam Flange Width	300	0.52	BA_bh_52
				330	0.57	BA_bh_57
				360	0.62	BA_bh_62
				390	0.67	BA_bh_67
Damper Distance Ratio	Damper Length	620	Axis Distance to the Column	385	0.62	DD_cd_62
				415	0.67	DD_cd_67
				445	0.72	DD_cd_72
Damper Aggregation Ratio	Strut+Void Width	70	Strut Width	24	0.34	DA_BL_34
				30	0.43	DA_BL_43
				36	0.51	DA_BL_51
Damper Thickness Ratio	Beam Flange Thickness	17	Damper Thickness	17	1	DT_ttf_100
				19	1.12	DT_ttf_112
				21	1.24	DT_ttf_124

Model Name	σ_y	σ_u	H_T	H	B	t	r	n	H'	P_y	P_u	δ_y
Model Name	Mpa	Mpa	mm	mm	mm	mm	mm	No.	mm	N	N	mm
BA_bh_52	208	464	140	100	30	19	20	16	105.7	269163	600441	0.443
BA_bh_57	208	464	140	100	30	19	20	16	105.7	269163	600441	0.443
BA_bh_62	208	464	140	100	30	19	20	16	105.7	269163	600441	0.443
BA_bh_67	208	464	140	100	30	19	20	16	105.7	269163	600441	0.443
DD_cd_62	208	464	140	100	30	19	20	16	105.7	269163	600441	0.443
DD_cd_67	208	464	140	100	30	19	20	16	105.7	269163	600441	0.443
DD_cd_72	208	464	140	100	30	19	20	16	105.7	269163	600441	0.443
DA_BL_34	208	464	140	94	24	19	23	16	101.6	179316	400013	0.504
DA_BL_43	208	464	140	100	30	19	20	16	105.7	269163	600441	0.443
DA_BL_51	208	464	140	106	36	19	17	16	110.1	372059	829978	0.407
DT_ttf_100	208	464	140	100	30	17	20	16	105.7	240830	537237	0.443
DT_ttf_112	208	464	140	100	30	19	20	16	105.7	269163	600441	0.443
DT_ttf_124	208	464	140	100	30	21	20	16	105.7	297496	663645	0.443

Model Name	Max stress	Max strain
Model Name	N/mm²	mm/mm
BA_bh_52	488	0.089
BA_bh_57	488	0.068
BA_bh_62	488	0.066
BA_bh_67	487	0.058
DD_cd_62	488	0.070
DD_cd_67	488	0.070
DD_cd_72	488	0.089
DA_BL_34	488	0.110
DA_BL_43	488	0.089
DA_BL_51	488	0.091
DT_ttf_100	488	0.061
DT_ttf_112	488	0.089
DT_ttf_124	488	0.067

Split-T
	Element	Unit	Magnitude
Upper Section	l_u	mm	635
	h_u	mm	239
	w_u	mm	300~400
	t_uf	mm	35
	t_uw	mm	22
Lower Section	l_l	mm	755
	h_l	mm	239
	w_l	mm	400
	t_lf	mm	35
	t_lw	mm	22

Model Name	Q_y	M_y	Q_u	M_u	θ_y
Model Name	N	N.mm	N	N.mm	rad
BA_bh_52	76931	253871377	171615	566328456	0.003322
BA_bh_57	76931	253871377	171615	566328456	0.003214
BA_bh_62	76931	253871377	171615	566328456	0.003122
BA_bh_67	76931	253871377	171615	566328456	0.003042
DD_cd_62	76931	249255534	171615	556031575	0.003361
DD_cd_67	76931	251563455	171615	561180016	0.003341
DD_cd_72	76931	253871377	171615	566328456	0.003322
DA_BL_34	51251	169128547	114329	377286759	0.002509
DA_BL_43	76931	253871377	171615	566328456	0.003322
DA_BL_51	106340	350921442	237220	782824754	0.004301
DT_ttf_100	68833	227148074	153550	506714935	0.003039
DT_ttf_112	76931	253871377	171615	566328456	0.003322
DT_ttf_124	85029	280594680	189679	625941978	0.003606

Brasil

Brasil

Numerical Analysis of the Seismic Performance of Rigid Beam-To-Column Moment Connections Equipped with Steel Slit Damper (SSD)

Abstract:

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