free4all: August 2014


fy	60	ksi
Phi	0.65							ONLY EDIT BLUE COLORED CELLS
								DO NOT EDIT ANY OTHER CELLS
Design Load =			2300	kips	(DESIGN LOAD TO BE CALCULATED FROM CATCHMENT AREA METHOD )
Column Size =		27		x	27

	Pu = 0.8(Phi)Ag[0.85f'c + Rho(g){fy - 0.85f'c}]

Finding Value of Factor				0.8(Phi)[0.85f'c + Rho(g){fy - 0.85f'c}]				From Above Equation			(EQUATION 1)

	Rein.	Concrete Strength , f'c , ksi / X-sectional Area (in2)
	%age	2.5		3		4		5		6		7		8
	Rho(g)		Area		Area		Area		Area		Area		Area		Area
			(in2)		(in2)		(in2)		(in2)		(in2)		(in2)		(in2)
0	1	1.406	1635.90	1.625	1415.611	2.062	1115.249	2.500	920.037	2.937	782.984	3.375	681.469	3.813	603.257
0	1.5	1.556	1477.75	1.774	1296.425	2.209	1040.969	2.645	869.615	3.080	746.700	3.516	654.229	3.951	582.137
0	2	1.707	1347.47	1.923	1195.749	2.357	975.966	2.790	824.432	3.223	713.630	3.656	629.082	4.089	562.446
0	2.5	1.857	1238.31	2.073	1109.583	2.504	918.604	2.935	783.712	3.366	683.365	3.797	605.797	4.228	544.044
0	3	2.008	1145.50	2.222	1035.001	2.651	867.610	3.080	746.826	3.508	655.562	3.937	584.174	4.366	526.808
0	3.5	2.158	1065.64	2.372	969.814	2.798	821.980	3.225	713.256	3.651	629.933	4.078	564.042	4.504	510.630
0	4	2.309	996.19	2.521	912.351	2.945	780.910	3.370	682.574	3.794	606.233	4.218	545.251	4.643	495.416
0	4.5	2.459	935.23	2.670	861.317	3.092	743.749	3.515	654.422	3.937	584.252	4.359	527.672	4.781	481.083
0	5	2.610	881.31	2.820	815.690	3.240	709.964	3.660	628.501	4.079	563.808	4.499	511.191	4.919	467.556
0	5.5	2.760	833.27	2.969	774.653	3.387	679.115	3.804	604.555	4.222	544.747	4.640	495.708	5.058	454.768
0	6	2.911	790.19	3.118	737.548	3.534	650.835	3.949	582.367	4.365	526.933	4.780	481.135	5.196	442.662
0	6.5	3.061	751.35	3.268	703.835	3.681	624.817	4.094	561.750	4.508	510.247	4.921	467.395	5.334	431.183
0	7	3.212	716.14	3.417	673.070	3.828	600.798	4.239	542.542	4.650	494.585	5.061	454.418	5.472	420.285
0	7.5	3.362	684.09	3.567	644.881	3.975	578.558	4.384	524.605	4.793	479.856	5.202	442.142	5.611	409.924
0	8	3.513	654.79	3.716	618.958	4.123	557.906	4.529	507.816	4.936	465.979	5.342	430.512	5.749	400.061

Actual Column size (in2)				729	in2

	EXPLANATION

		REINFORCEMENT PERCENTAGE FROM 1 TO 8 PERCENT

		IN DARK YELLOW I.E 2.5 , 3 , 4 ,5 ,6,7 & 8 ARE f'c and IN LIGHT COLOR YELLOW , THESE VALUE ARE FACTORS WHICH ARE CALCULATED BY
		PUTTING VALUES OF f'c , fy , Phi & Rho(g) in EQUATION 1

		THESE ARE REQUIRED AREA OF COLUMN WHICH ARE CALCULATED BY DIVIDING DESIGN LOAD BY FACTORS IN LITTLE YELLOW CELLS Excel Sheet Free Download Please Click Here note: excel sheet in extract-able (winrar)