footing_final.xlsx

	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	R	S	T
1	31
2							ISOLATED FOOTING
3
4		DATA :
5				fcu =	250	kg/cm2		Column Dimensions :				Foundation level =				-1.50	m
6				fy =	3600	kg/cm2		b =	10	cm
7				N working =	84	ton		t =	10	cm
8				q all net =	15	t/m2
9				P.C. th =	30	cm
10
11			1	Area p.c=	6.16	m2
12				L P.C. =	2.60	m
13				B P.C. =	2.40	m
14
15			2	Dim of R.C.						7	Rft
16				L R.C. =	2.00	m					As I =	18.04	cm2		As min =		15.90	cm2
17				B R.C. =	2.00	m					As II =	18.04	cm2		As min =		15.90	cm2
18
19			3	q =	31.50	t/m2					As I =	9	F	16	/	2.00	m
20											As II =	9	F	16	/	2.00	m
21			4	Moment at Critical Sections
22				M I =	28.43	m.t.					As I =	5	F	16	/	m'
23				M II =	28.43	m.t.	take C1 =	5.00			As II =	5	F	16	/	m'
24				d I =	37.70	cm	J =	0.826
25				d II =	37.70	cm	choose F	16
26				take:
27				t =	60	cm
28				d =	53	cm
29
30			5	Check Punching
31				P u =	126.00	ton
32				Q p =	113.50	ton
33				q p =	8.50	kg/cm2	SAFE PUNCHING
34				qp cu =	12.91	kg/cm2
35
36			6	Check Shear
37				Q sh1 =	43.16	ton
38				Q sh2 =	43.16	ton
39				q sh1 =	4.07	kg/cm2
40				q sh2 =	4.07	kg/cm2	SAFE SHEAR
41				qsh cu =	6.29	kg/cm2
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