IBC 2006 Seismic Calc.xls

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	Q	R	S	T	U	V	W	X	Y	Z	AA	AB	AC
1												IBC Table 1604.5: Occupancy Category
2												Category	Nature of Occupancy	IE		IBC Table 1613.5.3(1): Values of Site Coefficient Fa
3												I	Buildings and other structures that represent a low hazard to human life in the event of failure.	1.00				1	2	3	4	5
4	Project						Job #		Page	of		II	Buildings and other structures except those listed in Categories I, III, and IV.	1.00			Site Class	0.25	0.5	0.75	1	1.25
5	Client						By		Date	02/01/26		III	Buildings and other structures that represent a substantial hazard to human life in the event of failure.	1.25		1	A	0.80	0.80	0.80	0.80	0.80	1		Row #:	2
6	Subject						Checked		Date			IV	Buildings and other structures designated as essential facilities.	1.50		2	B	1.00	1.00	1.00	1.00	1.00	2		Fa Low:	1.00	Ss Low:	0.75
7																3	C	1.20	1.20	1.10	1.00	1.00	3		Low Col #:	3
8	Seismic Base Shear for the Equivalent Lateral Force Procedure											IBC Table 1615.1.1: Site Class Definitions				4	D	1.60	1.40	1.20	1.10	1.00	4		Fa High:	1.00	Ss High:	1
9	Per IBC 2006 & ASCE 7-05											Site Class	Name			5	E	2.50	1.70	1.20	0.90	0.90	5		High Col #:	4
10												A	Hard Rock			6	F	*NA*	*NA*	*NA*	*NA*	*NA*	6		Rise:	0.00	Run:	-0.25
11	Structure:											B	Rock					1	2	3	4	5				Rise/Run:	0
12	Address:											C	Very Dense Soil and Soft Rock													Fa :	1.00
13	Latitude:		Longitude:									D	Stiff Soil Profile
14												E	Soft Soil Profile
15	Structure Classification											F	-----
16			Occupancy Category :	II	per IBC Table 1604.5
17			Occupancy Category Description:	Buildings and other structures except those listed in Categories I, III, and IV.
18			Seismic Design Category (SDC):	D	per ASCE Section 11.6							ASCE Table 12.8-2: Values of Approximate Period Parameters				IBC Table 1613.5.3(2): Values of Site Coefficient FV
19			IE:	1.00	per ASCE Table 11.5-1								Steel Moment Frame	0.028	0.8			1	2	3	4	5
20			Seismic Force-Resisting System:										Concrete Moment Frame	0.016	0.9		Site Class	0.1	0.2	0.3	0.4	0.5
21			R:	3 1/2	per ASCE7 Table 12.2-1								Eccentrically Braced Frames	0.03	0.75	1	A	0.80	0.80	0.80	0.80	0.80	1		Row #:	2
22			hn (ft):	50.00	height above the base to the highest level of the structure								All Other Structural Systems	0.02	0.75	2	B	1.00	1.00	1.00	1.00	1.00	2		Fa Low:	1.00	Ss Low:	0.4
23																3	C	1.70	1.60	1.50	1.40	1.30	3		Low Col #:	4
24	Site Ground Motion															4	D	2.40	2.00	1.80	1.60	1.50	4		Fa High:	1.00	Ss High:	0.5
25		Maximum Considered Earthquake (MCE 2% in 50 Year) spectral response accelerations can be found by entering the Latitude and Longitude of the structure location into the following USGS website:				http://eqint.cr.usgs.gov/eq-men/html/lookup-2002-interp-06.html										5	E	3.50	3.20	2.80	2.40	2.40	5		High Col #:	5
26		SS (g-sec):	0.88		S1 (g-sec):	0.44										6	F	*NA*	*NA*	*NA*	*NA*	*NA*	6		Rise:	0.00	Run:	-0.1
27		Site Class:	B	per geotechnical report or building official														1	2	3	4	5				Rise/Run:	0
28		Site Class Description:	Rock		per IBC Table 1613.5.2																					Fa :	1.00
29		Fa:	1.00		FV:	1.00		per IBC Section 1613.5.3
30		SMS (g-sec):	0.88	= Fa * SS	SM1 (g-sec):	0.44	= FV * S1	per IBC Section 1613.5.3								IBC Table 1613.5.6(1) Seismic Design Category Based on SDS						IBC Table 1613.5.6(2) Seismic Design Category Based on SD1
31		SDS (g-sec):	0.59	= 2/3 * SMS	SD1 (g-sec):	0.29	= 2/3 * SM1	per IBC Section 1613.5.4									I	II	III	IV			I	II	III	IV
32		SDC:	D		SDC:	D		per IBC Section 1613.5.6								0.167	A	A	A	A		0.067	A	A	A	A
33																0.33	B	B	B	C		0.133	B	B	B	C
34	Fundamental Period per ASCE 12.8.2															0.5	C	C	C	D		0.2	C	C	C	D
35		Period Method:	Approximate Fundamental Period								Properly Substantiated Analysis						D	D	D	D	5		D	D	D	D	5	5
36	Properly Substantiated Analysis										Approximate Fundamental Period
37		Period (sec.):	0.00	fundamental period of the structure per ASCE 12.8.2							Alt. Approx. Fundamental Period
38		Cu:	1.40	Period Upper Limit Coefficient per ASCE Table 12.8-1
39		T (sec.):	0.00	per analysis
40	Approximate Fundamental Period per ASCE 12.8.2.1
41		Structure Type:	All Other Structural Systems														D	D	D	D	4		D	D	D	D	4	4
42		Ct:	0.02	x:	0.75	per ASCE Table 12.8-2
43		Ta (sec):	0.38	= Ct * hnx; per ASCE Eq. 12.8-7
44	Alternate Approximate Fundamental Period per ASCE 12.8.2.1
45		Ta (sec):	0.50	per Alternate Methods for MF's & Masonry/Concrete SW's in ASCE 12.8.2.1
46
47		Tuse (sec):	0.38
48		TL (sec):	16.00	Long-period Transition Period per ASCE Figures 22-15 through 22-20 (pages 228-233)
49			T <= TL
50
51	Equivalent Lateral Force Procedure Design Base Shear per ASCE 12.8
52		Cs:	0.17	= SDS / (R/IE); per ASCE Eq. 12.8-2
53		Cs-max:	0.22	= SD1 / (Ta*R/IE); for T <= TL per ASCE Eq. 12.8-3																					SDC
54		Cs-max:	9.48	= SD1TL / (Ta2R/IE); for T > TL per ASCE Eq. 12.8-4																					A
55		Cs-min:	0.01	per ASCE Eq. 12.8-5																					B
56		Cs-min:	0.06	= 0.5S1 / (R/IE) per ASCE Eq. 12.8-6																					C
57		Cs-use:	0.17																						D
58																									E
59		V :	0.17 W	= CS-use * W; per ASCE Eq. 12.8-1																					F
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