Strip Footing 4 Columns Bsi 8110

Embed Size (px)

Citation preview

Strip Footing Design - 4 cloumnskN/m2 150 0.3 m 2404 kN 2485 kN kN 3601 kN 2404 kN 2485kN 3601kN 2125 s2 s3 2125 m s1 L R 4.7 m 1.49 4.70 5.00 5.90 0.91 m m m m m 5.0 m 5.9 L = 18.00 m 150 -Ks hplinth = 145.2 kN/m2 qall = (1) Estimate size of footing Pw = (Pu1+Pu2+Pu3+Pu4)/(1.45) = 7321 kN m2 m2 Area req = Pw*1.1/qnet = 55.5 54 Area prov = Depth(m) >>> Select: L B 18 3 0.6 False in SBC (2) Estimate C.G of load ( assumption that it will be coincide with C.G of footing) X = [ Pu2 .s1 + P u3 .(s1+s2) + P u4 . (s1+s2+s3) ] /(1.45) = 7.51 m >> L= 1.49 m Note : X start from Column 1 >> R= 0.91 m

SBC h filling Pu1 Pu2 Pu3 Pu4 S1 S2 S3

SHEAR CA v1 v2 v3 v4 v5 v6 v7 v8 v9

(3) Draw SF & BM diagram for ultimate loads with upward Q net = qu = Q net . B = 197 x 3 = 590 kN/m

197 136

kN/m 2 work kN/m

2 ult

2404 1.49 4.7

2485 5.0

3601 5.9

2125 0.91 590kN/m

(4) RESULTS:

Mu bottom Shear

-1152

kN.m

Mu top

1887 kN.m Vu max

1708

kN

Note: Results for total width (B)

2000 1750 1500 1250 1000 750 500 250 0 0 -250 -500 0 -750 -1000 -1250 -1500 -1750 -2000 -2250 2250 2000 1750 1500 1250 1000 750 500 250 0 -250 -500 0 -750 -1000 -1250 -1500

1708 1244 876

1586

2 -1528

4

6

8 -1241

10

12 -1893

14

16

0 -539 18

20

Moment

2

4

6

8

10

12

14

16

18

20

V

MOMENT 0 876.4333 1527.567 1244.128 1240.872 1707.739 1893.261 1586.1 538.9 1.14E-12 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.2 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 0.3 0.31 0.32 0.33 0.34 0.35 0.36 0.37 0.38 0.39 0.4 0.41 0.42 0.43 0.44 0.45 0.46 0.47 0.48 0.49 0.5 0.51 0.52 0.53 0.54 0.55 0.56 0.57 0.58 0.59 0.6 0.61 0.62 0.63 0.64 0.65 0.66 0.67 0 0.15 0.30 0.45 0.59 0.74 0.89 1.04 1.19 1.34 1.49 1.53 1.58 1.63 1.67 1.72 1.77 1.82 1.86 1.91 1.96 2.00 2.05 2.10 2.14 2.19 2.24 2.29 2.33 2.38 2.43 2.47 2.52 2.57 2.61 2.66 2.71 2.76 2.80 2.85 2.90 2.94 2.99 3.04 3.08 3.13 3.18 3.23 3.27 3.32 3.37 3.41 3.46 3.51 3.55 3.60 3.65 3.70 3.74 3.79 3.84 3.88 3.93 3.98 4.02 4.07 4.12 4.17 4.21 4.26 4.31 4.35 4.40 4.45 4.49 4.54 4.59 4.64 0.00 -6.51 -26.05 -58.61 -104.20 -162.82 -234.46 -319.12 -416.81 -527.53 -651.27 -580 -510 -442 -375 -309 -244 -181 -119 -58 2 60 116 172 226 279 331 381 430 478 524 569 613 655 697 737 775 812 848 883 916 948 979 1009 1037 1064 1089 1113 1136 1158 1178 1197 1215 1232 1247 1261 1273 1284 1294 1303 1310 1316 1321 1324 1326 1327 1327 1325 1322 1317 1312 1305 1296 1287 1276 1264 1250 1235

0 1.49 1.49 6.19 6.19 11.19 11.19 17.09 17.09 18.00

0 876.4333 -1527.57 1244.128 -1240.87 1707.739 -1893.26 1586.1 -538.9 -1.1E-12

0.68 0.69 0.7 0.71 0.72 0.73 0.74 0.75 0.76 0.77 0.78 0.79 0.8 0.81 0.82 0.83 0.84 0.85 0.86 0.87 0.88 0.89 0.9 0.91 0.92 0.93 0.94 0.95 0.96 0.97 0.98 0.99 1 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.2 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 0.3 0.31 0.32 0.33 0.34 0.35 0.36 0.37 0.38 0.39 0.4 0.41 0.42 0.43 0.44 0.45 0.46 0.47 0.48 0.49 0.5

4.68 4.73 4.78 4.82 4.87 4.92 4.96 5.01 5.06 5.11 5.15 5.20 5.25 5.29 5.34 5.39 5.43 5.48 5.53 5.58 5.62 5.67 5.72 5.76 5.81 5.86 5.90 5.95 6.00 6.05 6.09 6.14 6.19 6.24 6.29 6.34 6.39 6.44 6.49 6.54 6.59 6.64 6.69 6.74 6.79 6.84 6.89 6.94 6.99 7.04 7.09 7.14 7.19 7.24 7.29 7.34 7.39 7.44 7.49 7.54 7.59 7.64 7.69 7.74 7.79 7.84 7.89 7.94 7.99 8.04 8.09 8.14 8.19 8.24 8.29 8.34 8.39 8.44 8.49 8.54 8.59 8.64 8.69

1219 1202 1183 1163 1141 1119 1095 1070 1043 1015 986 956 924 891 856 821 784 745 706 665 623 579 534 488 441 392 342 291 238 184 129 73 15 76 136 194 251 307 361 413 464 513 562 608 653 697 739 780 819 857 893 928 961 993 1023 1052 1079 1105 1130 1153 1174 1194 1213 1230 1245 1259 1272 1283 1293 1301 1308 1313 1317 1319 1320 1320 1318 1314 1309 1302 1295 1285 1274

0.51 0.52 0.53 0.54 0.55 0.56 0.57 0.58 0.59 0.6 0.61 0.62 0.63 0.64 0.65 0.66 0.67 0.68 0.69 0.7 0.71 0.72 0.73 0.74 0.75 0.76 0.77 0.78 0.79 0.8 0.81 0.82 0.83 0.84 0.85 0.86 0.87 0.88 0.89 0.9 0.91 0.92 0.93 0.94 0.95 0.96 0.97 0.98 0.99 1 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.2 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 0.3 0.31 0.32 0.33

8.74 8.79 8.84 8.89 8.94 8.99 9.04 9.09 9.14 9.19 9.24 9.29 9.34 9.39 9.44 9.49 9.54 9.59 9.64 9.69 9.74 9.79 9.84 9.89 9.94 9.99 10.04 10.09 10.14 10.19 10.24 10.29 10.34 10.39 10.44 10.49 10.54 10.59 10.64 10.69 10.74 10.79 10.84 10.89 10.94 10.99 11.04 11.09 11.14 11.19 11.25 11.30 11.36 11.42 11.48 11.54 11.60 11.66 11.72 11.78 11.84 11.89 11.95 12.01 12.07 12.13 12.19 12.25 12.31 12.37 12.43 12.48 12.54 12.60 12.66 12.72 12.78 12.84 12.90 12.96 13.02 13.07 13.13

1262 1248 1232 1216 1197 1178 1156 1134 1109 1084 1057 1028 998 966 933 899 863 825 786 746 704 661 616 569 522 472 422 369 316 261 204 146 86 25 -37 -101 -167 -234 -302 -372 -444 -516 -591 -667 -744 -823 -903 -985 -1068 -1152 -1042 -933 -826 -722 -620 -519 -421 -324 -230 -138 -48 40 126 210 292 372 450 526 599 671 741 808 874 937 999 1058 1115 1171 1224 1275 1324 1371 1416

0.34 0.35 0.36 0.37 0.38 0.39 0.4 0.41 0.42 0.43 0.44 0.45 0.46 0.47 0.48 0.49 0.5 0.51 0.52 0.53 0.54 0.55 0.56 0.57 0.58 0.59 0.6 0.61 0.62 0.63 0.64 0.65 0.66 0.67 0.68 0.69 0.7 0.71 0.72 0.73 0.74 0.75 0.76 0.77 0.78 0.79 0.8 0.81 0.82 0.83 0.84 0.85 0.86 0.87 0.88 0.89 0.9 0.91 0.92 0.93 0.94 0.95 0.96 0.97 0.98 0.99 1 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1

13.19 13.25 13.31 13.37 13.43 13.49 13.55 13.61 13.66 13.72 13.78 13.84 13.90 13.96 14.02 14.08 14.14 14.20 14.25 14.31 14.37 14.43 14.49 14.55 14.61 14.67 14.73 14.79 14.84 14.90 14.96 15.02 15.08 15.14 15.20 15.26 15.32 15.38 15.43 15.49 15.55 15.61 15.67 15.73 15.79 15.85 15.91 15.97 16.02 16.08 16.14 16.20 16.26 16.32 16.38 16.44 16.50 16.56 16.61 16.67 16.73 16.79 16.85 16.91 16.97 17.03 17.09 17.18 17.27 17.36 17.45 17.54 17.63 17.73 17.82 17.91 18.00

1459 1500 1539 1575 1610 1643 1673 1702 1729 1753 1775 1796 1814 1830 1845 1857 1867 1875 1881 1885 1887 1886 1884 1880 1874 1865 1855 1842 1828 1811 1792 1772 1749 1724 1697 1668 1637 1604 1569 1532 1493 1452 1408 1363 1316 1266 1215 1161 1106 1048 988 927 863 797 729 659 587 513 437 359 278 196 112 25 -63 -154 -246 -199 -158 -121 -89 -62 -39 -22 -10 -2 0