Question

Given the following data: Column DL-200 kips LL-90 kips X-15 in y-15 in di 8/8 in f, = 60 ksi; fe-4.0 ksi; Footing = 50 ksi (Dead load) (Live load) (Column size) (8#8 bars) 3.0 ksi q, = 3.0 ksf M.-260 kip-ft Design suitable footings, so that the column is concentrie with the footing.

Answer 1

Tiven Footing eel aradle Column DL= 200 Kips C pead road) C Live load) LL = 90 Kips Colum Sie) = ISİn C Steel grade) I5 X15 ELEVATION

tHeve 3.0 Ksf 5, below the 7-de x Effective beaving Capacity C9e) unit weight * The Si3cqfbotirg Avea, booting Roo +9 12.621 ft le 2.36 5 For Strength desig the upuwan esue Caused by the factoed Celumn load j Area booting 12 200) +1.6 (0) χ11-07 1),07

thic ness depth The depth込Commo nly determined bod eon. two y puncing Shear on the Critical perimeter. 引 羽 -)alレ 1).07 1 d Assume d30 Critical perimeter bo 4Is"+t d) S 30 180 in yward pre ssure- that acting ethin the itica pevimetes

vu ะ 313(11,040一3.752 3-75 De yth d3o i. for punting shear Alo W Checc for beam Chea we เจ้าป d 30,、 foy One.war 01, beamghea 1.2- 3,13 x11.07 Xb bey.기-(g) 659%35.1883.Soy 6sy k> 63.roL → о-с

Depth 01:30 tl 。ヒ 15 1l.0 C2.4 11.031 2.4 d 2.4 4.9l 4.9/