Design a reinforced concrete retaining wall for the following conditions. f'c = 3000 psi fy = 60 ksi
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1 CE 4 Fall 005 Retag all Deign Example / 8 Deign a reore onrete retag all or the ollog onition. 000 pi 0 i rharge q 400 p Fill: φ o Unit t 00 p H 8 t toe t tem Natral Soil: φ o alloable bearg prere 5000p Development o Strtral Deign Eqation. In thi example the trtral eign o the three retag all omponent i perorme b han. o eqation are evelope thi etion or etermg the thine & reorement reqire to reit the beng moment the retag all omponent (tem toe an. Eqation to allate eetive epth : hree bai eqation ill be e to evelop an eqation or. φ n a n a φ [ Eqn] C ab a b [ Eqn ] 0.00 ε 0.00 tra ompatibilit : a / β mg β 0.85 a 0.00 β ε 0.00 ε a/ an hoog a vale or ε abot the mile o the pratial eign range a 0.5 a 0.5 [ Eqn ]
2 CE 4 Fall 005 Retag all Deign Example / 8 Sbtittg Eqn. to Eqn. : φ 0.85 ab a n btittg Eqn. to the above: φ b Inertg the material propertie: i an 0 i an b (-oot-ie trip o all the iretion ot o the paper. i.90(0.85 ( (0.5( Eqation or area o reorement. he area o reorement reqire i allate rom Eqn. : i φ i Deign roere (aer hil Fergon Univ. exa. Determe H. Uall the top-o-all elevation i eterme b the lient. he bottom-o-all elevation i eterme b onation onition. H 8 eet.. Etimate thine o bae. t 7% to 0% H (" mimm 0.07 (8 x "/ 5." e t "
3 CE 4 Fall 005 Retag all Deign Example / 8. Deign tem (t tem tem. he tem i a vertial antilever beam ate on b the horizontal earth prere. h 8 / / h.7 h t a γ h a q toe t tem al. : ( aγ h h ( a ot o page φ ( 0. φ o ( (0.(00 p (.7 o ( 40 r a q r h ( 0.(400 p (.7 ( 070 (Earth rere LoaFator( (.(40.7 ( (.(070 h ( (Live LoaFator(.7 ( 5.9 r h ( t 5.9 tem ( ( ( ame #8 bar e t tem 5
4 CE 4 Fall 005 Retag all Deign Example 4 / 8 al. : i ( 47.7 i (.5. o one #8bar bar 7. bar. o all e 4. Chooe Heel ith Selet to prevent lig. Ue a e to ore lig ailre to or the oil (oil-to-oil ha higher rition angle than oil-to-onrete. Neglet oil reitane ront o the all. Freit et Flig FS FS Fator o Saet.5 or lig F F reit reit (Vertial Fore(oeiient o rition tanφ natral oil (tanφ natral oil tan( tem o 0. on 8 5 t tem on (00 p (.7 (50 p (.7 (50 p ( ( ( ( ( 70 5 ( 80 5 ( 00 pl 850 F lig r F r lig (0. ( p ( p (8 0 ( 750 ( 500 0
5 CE 4 Fall 005 Retag all Deign Example 5 / 8 e ( Che Overtrng..75 (.5 ( 5 ( 50. (9. ( ( 8 ( on tem toe reit r ame OK FS reit reit l l reit ( (0.0 (.5 (.8 (8 (.7 >. Che Bearg. on tem on tem v bl bl toe o en at < 9.9 (.5.8 ( ( ( ( L e vali onl i eqation i Che that e < L/: OK L e L m e < t 5"
6 CE 4 Fall 005 Retag all Deign Example / 8 v 7.9 ( (.75 ( 9.9 ( < 5.0 alloable bearg apait OK 7. Heel Deign. ax. loa on i e to the eight o rharge a the all trie to tip. Flexre:.88 l.(50p.(400pl ( r (.(00p (.7 ( V L.88 l ( ( Shear: l V (.88 (. or lexre φ V (0.75 b ( pi ( etv φv 00 ( pi ( 9.0 or hear ontrol Shear ontrol the thine o the. t ( ame #8 bar e t. 5 Reorement : ( 47.7 i i 0.79 bar ( ( e
7 CE 4 Fall 005 Retag all Deign Example 7 / 8 8. oe Deign. Earth rere at ip o oe: v ± bl bl.(.(.5..(50. tem.8.( oil on.( r.5.(0.4.5 tem (8 ( [ (.5.8 ( ] (i not real onation t b.. neglible hange.5 v ( v vc vb or lexre:.7 (.74 (.75 ( ( ( ( (8.75 ( ( ( ( ( 9.8 B C ( or lexre or hear: me t t toe.5 Critial etion or hear or at "" rom ae o tem.5" "-/"8" vritial e tion ( V φv (4.74 ( ( 000pi ( 8 ( ( > V OK or lexre ontrol
8 CE 4 Fall 005 Retag all Deign Example 8 / 8 Reorement toe: ( bar ( 0.8 i 0.0 bar ( i (8 tr maller bar a #4 0.8 e
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