Seismic Response of Steel SMFs Subjected to Vertical Components of Far- and Near-Field Earthquakes with Forward Directivity Effects

Table 5

Comparison of the maximum axial force of columns in 3-, 5-, 8-, and 20-story buildings subjected to near- and far-field earthquakes.

	No. of stories	Field	Axial column force (kN)	No. of columns	Record	Near/far
3-story	1	Near	61.750	C14	#Records11	1.129
		Far	54.67	C11	#Record12
	2	Near	42.224	C14	#Records11	1.031
		Far	40.92	C11	#Record12
	3	Near	27.819	C14	#Records11	1.058
		Far	26.29	C11	#Record12
5-story	1	Near	105.099	C14	#Records10	0.999
		Far	105.13	C14	#Record8
	2	Near	96.120	C14	#Records10	0.991
		Far	96.95	C14	#Record8
	3	Near	75.586	C14	#Records10	0.983
		Far	76.91	C14	#Record8
	4	Near	54.298	C14	#Records10	0.984
		Far	55.20	C14	#Record8
	5	Near	26.702	C14	#Records10	0.963
		Far	27.73	C14	#Record8
8-story	1	Near	357.76	C14	#Records11	0.780
		Far	458.40	C14	#Record12
	2	Near	337.45	C14	#Records11	0.775
		Far	435.56	C14	#Record12
	3	Near	301.11	C14	#Records11	0.776
		Far	388.22	C14	#Record12
	4	Near	261.27	C14	#Records11	0.778
		Far	335.63	C14	#Record12
	5	Near	209.32	C14	#Records11	0.765
		Far	273.72	C14	#Record12
	6	Near	165.23	C14	#Records11	0.763
		Far	216.69	C14	#Record12
	7	Near	120.52	C14	#Records11	0.766
		Far	157.30	C14	#Record12
	8	Near	71.40	C14	#Records15	0.742
		Far	96.28	C14	#Record12
20-story	1	Near	14330.09	C14	#Records5	1.267
		Far	11312.26	C14	#Records13
	2	Near	13563.66	C14	#Records5	1.283
		Far	10569.36	C14	#Records13
	3	Near	12707.71	C14	#Records5	1.299
		Far	9780.81	C14	#Records13
	4	Near	12707.71	C14	#Records5	1.402
		Far	9060.82	C14	#Records13
	5	Near	11016.25	C14	#Records5	1.318
		Far	8356.13	C14	#Records13
	6	Near	10155.81	C14	#Records5	1.324
		Far	7667.54	C14	#Records13
	7	Near	9348.77	C14	#Records5	1.337
		Far	6988.96	C14	#Records13
	8	Near	8556.42	C14	#Records5	1.354
		Far	6320.06	C14	#Records13
	9	Near	7744.19	C14	#Records5	1.363
		Far	5680.05	C14	#Records13
	10	Near	6917.78	C14	#Records5	1.365
		Far	5068.28	C14	#Records13
	11	Near	6084.43	C14	#Records5	1.364
		Far	4461.07	C14	#Records13
	12	Near	5227.68	C14	#Records5	1.313
		Far	3979.52	C14	#Records13
	13	Near	4342.26	C14	#Records5	1.245
		Far	3488.41	C14	#Records13
	14	Near	3558.95	C13	#Records4	1.203
		Far	2958.85	C14	#Records13
	15	Near	2929.68	C13	#Records4	1.215
		Far	2410.56	C14	#Records13
	16	Near	2303.32	C13	#Records4	1.230
		Far	1871.98	C14	#Records13
	17	Near	1733.34	C13	#Records4	1.287
		Far	1347.13	C14	#Records13
	18	Near	1181.83	C13	#Records4	1.348
		Far	876.72	C14	#Records13
	19	Near	726.91	C13	#Records10	1.506
		Far	482.47	C14	#Records13
	20	Near	312.53	C13	#Records10	1.766
		Far	176.97	C14	#Records13