TABLA 2.1.5

PERFILES CONFORMADOS EN FRÍO Y PLEGADOSSECCIONES C

Conformados en frío hasta 6 mm

GEOMETRÍA DE LA SECCIÓN Y PROPIEDADES PARA EL DISEÑO

DESIGNACIÓN DIMENSIONES ÁREA EJE X - X EJE Y - Y TORSIÓN Y ALABEO PANDEO LOCAL*

C D x B x Peso t R A x m j f , MPa

mm x mm x kgf/m mm mm mm mm mm mm mm mm MPA mm mm mm mm - 235 248 265 345 20 100 200 310

Qs Qa

IX/106 ZX/103 SX/103 rX IY/106 ZY/103 SY/103 rY xp ia it X1 X2x108 J/104 Cw/106 x0 r0 H=b Fy , MPa

mm2 mm4 mm3 mm3 mm4 mm3 mm3 (1/MPA)2 mm4 mm6

Bb

R

y

m

x x

y

DCC

tx, xp

x0

Bb

R

y

m

x x

y

DCC

tx, xp

x0

C 350 x 100 x 47.6 12.0 18.00 6065 95.7 682 547 126 4.77 115 62.5 28.1 9.47 23.6 39.1 3.43 21212 4998 29.4 29.111 100780 193 47.0 137 0.882 - - - - - - - -40.3 10.0 15.00 5128 82.5 582 472 127 4.12 96.2 53.2 28.3 7.89 22.7 39.1 2.86 17330 10868 29.8 17.094 87586 195 47.4 138 0.883 - - - - - - - 0.94932.7 8.0 12.00 4162 68.3 478 390 128 3.41 - 43.5 28.6 - 21.8 39.1 2.29 13599 27796 30.1 8.8792 73046 197 47.9 140 0.883 - - - - - - 0.987 0.90124.9 6.0 9.00 3166 52.9 - 302 129 2.64 - 33.4 28.9 - 20.9 39.1 1.71 10009 91945 30.5 3.7994 57092 199 48.3 141 0.883 0.950 0.940 0.927 0.872 - - 0.909 0.83520.9 5.0 7.50 2657 44.8 - 256 130 2.24 - 28.1 29.0 - 20.4 39.1 1.43 8265 194993 30.7 2.2142 48561 200 48.6 142 0.882 0.863 0.851 0.835 0.767 - 0.960 0.841 0.77016.8 4.0 6.00 2141 36.4 - 208 130 1.82 - 22.7 29.2 - 20.0 39.1 1.14 6552 486791 30.8 1.1416 39650 201 48.8 142 0.882 0.733 0.717 0.697 0.551 - 0.876 0.762 0.69912.7 3.0 4.50 1617 27.8 - 159 131 1.39 - 17.2 29.3 - 19.5 39.1 0.86 4870 1572901 31.0 0.4850 30347 202 49.0 143 0.882 0.579 0.549 0.514 0.395 - 0.774 0.675 0.62310.6 2.5 3.75 1352 23.3 - 133 131 1.16 - 14.4 29.4 - 19.3 39.1 0.71 4040 3297617 31.1 0.2816 25547 202 49.2 143 0.882 0.495 0.469 0.439 0.337 0.984 0.716 0.628 0.582

8.5 2.0 3.00 1085 18.8 - 107 132 0.939 - 11.6 29.4 - 19.1 39.1 0.57 3218 8139466 31.2 0.1447 20645 203 49.3 144 0.882 0.368 0.349 0.326 0.251 0.903 0.653 0.579 0.541

C 350 x 75 x 29.5 8.0 12.00 3762 56.6 409 323 123 1.47 - 24.5 19.8 - 14.8 28.2 1.71 14832 24103 19.7 8.0259 32596 228 30.5 128 0.943 - - - - - - 0.915 0.84822.5 6.0 9.00 2866 44.1 315 252 124 1.15 - 18.9 20.1 - 13.9 28.3 1.29 10886 80172 20.0 3.4394 25727 230 30.9 129 0.943 - - - - - - 0.863 0.77218.9 5.0 7.50 2407 37.4 - 214 125 0.982 - 16.0 20.2 - 13.4 28.4 1.07 8976 170467 20.2 2.0059 21988 231 31.2 130 0.943 0.993 0.984 0.973 0.924 - 0.956 0.814 0.72615.2 4.0 6.00 1941 30.5 - 174 125 0.803 - 12.9 20.3 - 13.0 28.4 0.86 7107 426630 20.4 1.0349 18039 232 31.4 131 0.942 0.896 0.884 0.869 0.806 - 0.864 0.738 0.66811.5 3.0 4.50 1467 23.3 - 133 126 0.615 - 9.85 20.5 - 12.6 28.5 0.64 5276 1381852 20.6 0.4400 13871 232 31.6 131 0.942 0.733 0.717 0.697 0.551 - 0.751 0.641 0.584

9.6 2.5 3.75 1227 19.6 - 112 126 0.518 - 8.26 20.5 - 12.3 28.5 0.54 4374 2900505 20.7 0.2556 11704 233 31.7 132 0.942 0.621 0.589 0.551 0.423 0.983 0.687 0.590 0.5407.7 2.0 3.00 985 15.8 - 90.2 127 0.418 - 6.65 20.6 - 12.1 28.5 0.43 3482 7167615 20.7 0.1314 9480 233 31.9 132 0.942 0.526 0.499 0.467 0.359 0.894 0.618 0.536 0.494

C 350 x 50 x 20.1 6.0 9.00 2566 35.2 264 201 117 0.346 - 8.29 11.6 - 8.20 17.4 0.86 12205 67182 10.6 3.0794 8135 317 15.8 119 0.982 - - - - - 0.884 0.755 0.66416.9 5.0 7.50 2157 30.0 223 171 118 0.298 - 7.05 11.8 - 7.75 17.5 0.71 10042 143464 10.7 1.7976 7023 317 16.0 120 0.982 - - - - - 0.865 0.706 0.62013.7 4.0 6.00 1741 24.5 181 140 119 0.246 - 5.76 11.9 - 7.31 17.5 0.57 7933 360511 10.9 0.9283 5819 317 16.2 120 0.982 - - - - - 0.802 0.650 0.57110.3 3.0 4.50 1317 18.7 - 107 119 0.190 - 4.41 12.0 - 6.87 17.6 0.43 5877 1172198 11.1 0.3950 4519 317 16.4 121 0.982 0.950 0.940 0.927 0.872 - 0.722 0.585 0.515

8.6 2.5 3.75 1102 15.8 - 90.2 120 0.161 - 3.71 12.1 - 6.65 17.7 0.36 4868 2465020 11.1 0.2295 3831 317 16.5 121 0.981 0.863 0.851 0.835 0.767 0.981 0.651 0.543 0.4846.9 2.0 3.00 885 12.8 - 72.9 120 0.131 - 3.00 12.2 - 6.43 17.7 0.29 3871 6102562 11.2 0.1180 3118 317 16.6 122 0.981 0.733 0.717 0.697 0.551 0.882 0.575 0.483 0.437

C 300 x 100 x 42.9 12.0 18.00 5465 65.3 537 435 109 4.57 112 61.3 28.9 10.1 25.5 39.7 4.00 24014 2806 31.1 26.231 69377 158 50.6 124 0.833 - - - - - - - -36.3 10.0 15.00 4628 56.5 460 377 111 3.94 94.4 52.3 29.2 8.39 24.6 39.6 3.33 19578 6134 31.5 15.428 60437 160 51.1 125 0.834 - - - - - - - -29.5 8.0 12.00 3762 46.9 379 313 112 3.27 76.4 42.8 29.5 6.70 23.7 39.6 2.67 15333 15769 31.9 8.0259 50523 162 51.5 126 0.834 - - - - - - - 0.94822.5 6.0 9.00 2866 36.5 - 243 113 2.54 - 32.8 29.7 - 22.7 39.5 2.00 11264 52427 32.2 3.4394 39579 164 51.9 128 0.835 0.950 0.940 0.927 0.872 - - 0.970 0.90018.9 5.0 7.50 2407 31.0 - 206 113 2.15 - 27.6 29.9 - 22.3 39.5 1.67 9292 111461 32.4 2.0059 33704 165 52.2 128 0.835 0.863 0.851 0.835 0.767 - - 0.905 0.83515.2 4.0 6.00 1941 25.2 - 168 114 1.75 - 22.4 30.0 - 21.8 39.5 1.33 7360 278942 32.6 1.0349 27550 165 52.4 129 0.835 0.733 0.717 0.697 0.551 - 0.938 0.826 0.76211.5 3.0 4.50 1467 19.2 - 128 115 1.33 - 17.0 30.1 - 21.4 39.5 1.00 5466 903506 32.8 0.4400 21110 166 52.6 130 0.835 0.579 0.549 0.514 0.395 - 0.838 0.736 0.681

9.6 2.5 3.75 1227 16.2 - 108 115 1.12 - 14.2 30.2 - 21.1 39.5 0.83 4533 1896507 32.9 0.2556 17781 167 52.7 130 0.835 0.495 0.469 0.439 0.337 - 0.778 0.686 0.6387.7 2.0 3.00 985 13.1 - 87.0 115 0.903 - 11.4 30.3 - 20.9 39.5 0.67 3609 4686752 33.0 0.1314 14377 167 52.9 130 0.835 0.368 0.349 0.326 0.251 0.962 0.713 0.634 0.594

C 300 x 75 x 26.4 8.0 12.00 3362 38.4 320 256 107 1.42 44.0 24.1 20.6 6.01 16.1 28.9 2.00 16745 13580 21.1 7.1725 22583 178 33.1 114 0.915 - - - - - - - 0.88420.1 6.0 9.00 2566 30.0 247 200 108 1.11 - 18.6 20.8 - 15.2 28.9 1.50 12264 45428 21.4 3.0794 17864 180 33.6 115 0.915 - - - - - - 0.934 0.84516.9 5.0 7.50 2157 25.5 - 170 109 0.949 - 15.7 21.0 - 14.7 28.9 1.25 10102 96858 21.6 1.7976 15285 181 33.8 116 0.915 0.993 0.984 0.973 0.924 - - 0.894 0.79913.7 4.0 6.00 1741 20.8 - 139 109 0.776 - 12.8 21.1 - 14.3 28.9 1.00 7990 243067 21.8 0.9283 12553 182 34.0 117 0.915 0.896 0.884 0.869 0.806 - 0.931 0.806 0.73510.3 3.0 4.50 1317 15.9 - 106 110 0.594 - 9.71 21.2 - 13.8 29.0 0.75 5925 789403 22.0 0.3950 9664 183 34.3 117 0.914 0.733 0.717 0.697 0.551 - 0.819 0.706 0.645

8.6 2.5 3.75 1102 13.4 - 89.4 110 0.501 - 8.15 21.3 - 13.6 29.0 0.63 4911 1659151 22.1 0.2295 8158 183 34.4 118 0.914 0.621 0.589 0.551 0.423 - 0.753 0.651 0.5976.9 2.0 3.00 885 10.8 - 72.2 111 0.405 - 6.57 21.4 - 13.4 29.0 0.50 3907 4105421 22.1 0.1180 6612 183 34.5 118 0.914 0.526 0.499 0.467 0.359 0.958 0.681 0.593 0.548

NOTAS : * PANDEO LOCAL DISEÑO POR TENSIONES ADMISIBLES :

perfil trabajando en flexión según eje x-x ó y-y respectivamente, la sección clasifica como DISEÑO POR MFCR :

ó interpolar linealmente con el siguiente margen de error : omitido se refiere a que el alma en compresión por flexión clasifica como esbelta.- Donde no se indica valor de Z, la sección clasifica como

- Qs y Qa tabulados corresponden a perfil trabajando en compresión.- Valor sombreado de ZX ó ZY indica que, para - Valor de Qa está determinado para cálculo de tensiones. - Flexión simple : usar Qs tabulado y SXef = SX.

- Valor de Qa ó Qs no indicado, significa valor unitario. - Flexión compuesta o compresión : usar Qs tabulado y f=FY para determinar Qa.

esbelta si se usan aceros con FY³345 MPa. - Para valores de f distintos de los tabulados, ver tabla 2.4.4- En el caso de flexión según eje y-y, el valor de ZY

- si f < 20 MPa, Qa = 1, sin error - si f ³ 20 MPa, error en Qa varía hasta en ± 3 %- Flexión simple : la tensión máxima es fbFYQs. Además,

esbelta para aceros con FY³235 MPa. SXef=SX para todos los perfiles de la tabla.

TABLA 2.1.5

PERFILES CONFORMADOS EN FRÍO Y PLEGADOSSECCIONES C

Conformados en frío hasta 6 mm

GEOMETRÍA DE LA SECCIÓN Y PROPIEDADES PARA EL DISEÑO

DESIGNACIÓN DIMENSIONES ÁREA EJE X - X EJE Y - Y TORSIÓN Y ALABEO PANDEO LOCAL*

C D x B x Peso t R A x m j f , MPa

mm x mm x kgf/m mm mm mm mm mm mm mm mm MPA mm mm mm mm - 235 248 265 345 20 100 200 310

Qs Qa

IX/106 ZX/103 SX/103 rX IY/106 ZY/103 SY/103 rY xp ia it X1 X2x108 J/104 Cw/106 x0 r0 H=b Fy , MPa

mm2 mm4 mm3 mm3 mm4 mm3 mm3 (1/MPA)2 mm4 mm6

Bb

R

y

m

x x

y

DCC

tx, xp

x0

Bb

R

y

m

x x

y

DCC

tx, xp

x0

C 300 x 50 x 17.8 6.0 9.00 2266 23.5 203 157 102 0.337 - 8.20 12.2 - 8.89 18.0 1.00 13813 37611 11.5 2.7194 5679 237 17.4 104 0.972 - - - - - - 0.840 0.74515.0 5.0 7.50 1907 20.1 172 134 103 0.290 - 6.98 12.3 - 8.44 18.0 0.83 11350 80587 11.7 1.5892 4908 238 17.6 105 0.972 - - - - - 0.926 0.790 0.69812.1 4.0 6.00 1541 16.4 140 110 103 0.240 - 5.70 12.5 - 8.00 18.1 0.67 8955 203175 11.8 0.8216 4071 238 17.8 106 0.971 - - - - - 0.886 0.730 0.645

9.2 3.0 4.50 1167 12.6 - 84.2 104 0.185 - 4.37 12.6 - 7.56 18.2 0.50 6626 662751 12.0 0.3500 3164 239 18.1 106 0.971 0.950 0.940 0.927 0.872 - 0.796 0.659 0.5837.7 2.5 3.75 977 10.6 - 71.0 104 0.157 - 3.68 12.7 - 7.34 18.2 0.42 5485 1395909 12.1 0.2035 2684 239 18.2 107 0.971 0.863 0.851 0.835 0.767 - 0.721 0.606 0.5466.2 2.0 3.00 785 8.61 - 57.4 105 0.127 - 2.97 12.7 - 7.12 18.2 0.33 4359 3461217 12.2 0.1047 2185 239 18.3 107 0.971 0.733 0.717 0.697 0.551 0.952 0.640 0.541 0.490

C 250 x 100 x 38.2 12.0 18.00 4865 41.7 408 334 92.6 4.31 109 59.8 29.8 10.9 27.9 40.2 4.80 27881 1414 33.1 23.351 44466 129 55.0 112 0.758 - - - - - - - -32.4 10.0 15.00 4128 36.3 351 290 93.7 3.73 92.3 51.0 30.1 9.10 27.0 40.1 4.00 22667 3113 33.4 13.761 38868 131 55.4 113 0.760 - - - - - - - -26.4 8.0 12.00 3362 30.3 289 242 94.9 3.09 75.1 41.8 30.3 7.26 26.0 40.0 3.20 17704 8058 33.8 7.1725 32600 133 55.8 114 0.761 - - - - - - - -20.1 6.0 9.00 2566 23.6 - 189 96.0 2.41 - 32.1 30.6 - 25.0 39.9 2.40 12973 26975 34.2 3.0794 25623 135 56.2 115 0.763 0.950 0.940 0.927 0.872 - - - 0.96816.9 5.0 7.50 2157 20.1 - 161 96.5 2.04 - 27.0 30.8 - 24.6 39.8 2.00 10689 57544 34.4 1.7976 21855 135 56.4 116 0.763 0.863 0.851 0.835 0.767 - - 0.972 0.90713.7 4.0 6.00 1741 16.4 - 131 97.1 1.66 - 21.9 30.9 - 24.1 39.8 1.60 8456 144492 34.5 0.9283 17893 136 56.6 117 0.764 0.733 0.717 0.697 0.551 - 1.000 0.898 0.83510.3 3.0 4.50 1317 12.5 - 100 97.6 1.27 - 16.6 31.0 - 23.6 39.7 1.20 6272 469566 34.7 0.3950 13733 137 56.9 117 0.764 0.579 0.549 0.514 0.395 - 0.908 0.807 0.751

8.6 2.5 3.75 1102 10.6 - 84.4 97.9 1.07 - 13.9 31.1 - 23.4 39.7 1.00 5198 987259 34.8 0.2295 11576 138 57.0 117 0.765 0.495 0.469 0.439 0.337 - 0.850 0.756 0.7056.9 2.0 3.00 885 8.53 - 68.2 98.1 0.859 - 11.2 31.2 - 23.1 39.7 0.80 4136 2443749 34.9 0.1180 9367 138 57.1 118 0.765 0.368 0.349 0.326 0.251 - 0.783 0.700 0.657

C 250 x 75 x 23.3 8.0 12.00 2962 24.4 241 195 90.8 1.36 42.9 23.7 21.4 6.43 17.7 29.5 2.40 19340 6893 22.6 6.3192 14580 137 36.3 100 0.868 - - - - - - - -17.8 6.0 9.00 2266 19.2 187 153 92.0 1.06 - 18.3 21.7 - 16.8 29.4 1.80 14124 23231 23.0 2.7194 11571 139 36.8 101 0.869 - - - - - - - 0.92015.0 5.0 7.50 1907 16.3 - 131 92.6 0.907 - 15.5 21.8 - 16.3 29.4 1.50 11618 49714 23.2 1.5892 9916 140 37.0 102 0.869 0.993 0.984 0.973 0.924 - - 0.968 0.87512.1 4.0 6.00 1541 13.4 - 107 93.2 0.742 - 12.5 21.9 - 15.9 29.4 1.20 9177 125208 23.4 0.8216 8157 140 37.2 103 0.869 0.896 0.884 0.869 0.806 - 1.000 0.885 0.813

9.2 3.0 4.50 1167 10.3 - 82.1 93.8 0.569 - 9.54 22.1 - 15.4 29.4 0.90 6797 408084 23.6 0.3500 6289 141 37.5 103 0.869 0.733 0.717 0.697 0.551 - 0.897 0.783 0.7197.7 2.5 3.75 977 8.64 - 69.1 94.1 0.479 - 8.01 22.1 - 15.2 29.4 0.75 5629 859213 23.6 0.2035 5314 142 37.6 104 0.869 0.621 0.589 0.551 0.423 - 0.831 0.725 0.6686.2 2.0 3.00 785 6.99 - 55.9 94.3 0.387 - 6.45 22.2 - 15.0 29.4 0.60 4476 2129764 23.7 0.1047 4310 142 37.7 104 0.869 0.526 0.499 0.467 0.359 - 0.756 0.662 0.614

C 250 x 50 x 15.4 6.0 9.00 1966 14.7 150 118 86.5 0.325 - 8.09 12.9 - 9.78 18.6 1.20 15973 18981 12.6 2.3594 3696 171 19.4 89.6 0.953 - - - - - - 0.916 0.84413.0 5.0 7.50 1657 12.6 128 101 87.2 0.280 - 6.89 13.0 - 9.34 18.6 1.00 13101 40849 12.8 1.3809 3199 172 19.6 90.3 0.953 - - - - - - 0.888 0.79410.5 4.0 6.00 1341 10.4 104 82.8 87.9 0.231 - 5.63 13.1 - 8.89 18.7 0.80 10320 103432 12.9 0.7149 2657 172 19.8 91.0 0.953 - - - - - 0.979 0.827 0.736

8.0 3.0 4.50 1017 7.97 - 63.8 88.5 0.179 - 4.31 13.3 - 8.45 18.7 0.60 7624 338813 13.1 0.3050 2068 173 20.1 91.8 0.952 0.950 0.940 0.927 0.872 - 0.881 0.751 0.6686.7 2.5 3.75 852 6.73 - 53.8 88.9 0.152 - 3.63 13.3 - 8.23 18.8 0.50 6306 715095 13.2 0.1775 1756 173 20.2 92.1 0.952 0.863 0.851 0.835 0.767 - 0.806 0.684 0.6195.4 2.0 3.00 685 5.45 - 43.6 89.2 0.123 - 2.93 13.4 - 8.01 18.8 0.40 5008 1776734 13.3 0.0914 1431 174 20.3 92.5 0.952 0.733 0.717 0.697 0.551 - 0.720 0.613 0.557

C 225 x 100 x 30.4 10.0 15.00 3878 28.1 301 250 85.2 3.60 91.2 50.3 30.5 9.58 28.4 40.2 4.44 24709 2100 34.5 12.928 30082 119 57.9 107 0.710 - - - - - - - -24.8 8.0 12.00 3162 23.5 249 209 86.3 2.99 74.4 41.2 30.8 7.64 27.4 40.1 3.56 19264 5461 34.9 6.7459 25288 121 58.2 109 0.712 - - - - - - - -19.0 6.0 9.00 2416 18.4 - 164 87.4 2.33 56.8 31.6 31.0 5.71 26.4 40.0 2.67 14092 18362 35.2 2.8994 19919 123 58.6 110 0.714 0.950 0.940 0.927 0.872 - - - -16.0 5.0 7.50 2032 15.7 - 140 87.9 1.98 - 26.7 31.2 - 25.9 39.9 2.22 11601 39258 35.4 1.6934 17008 123 58.8 110 0.715 0.863 0.851 0.835 0.767 - - - 0.94612.9 4.0 6.00 1641 12.8 - 114 88.4 1.61 - 21.6 31.3 - 25.4 39.8 1.78 9170 98792 35.6 0.8749 13940 124 59.0 111 0.716 0.733 0.717 0.697 0.551 - - 0.937 0.875

9.7 3.0 4.50 1242 9.83 - 87.3 89.0 1.23 - 16.4 31.5 - 25.0 39.8 1.33 6797 321745 35.8 0.3725 10710 125 59.3 111 0.717 0.579 0.549 0.514 0.395 - 0.946 0.847 0.7918.2 2.5 3.75 1039 8.27 - 73.5 89.2 1.03 - 13.7 31.5 - 24.7 39.7 1.11 5631 677194 35.9 0.2165 9033 126 59.4 112 0.718 0.495 0.469 0.439 0.337 - 0.889 0.795 0.7446.6 2.0 3.00 835 6.69 - 59.4 89.5 0.833 - 11.0 31.6 - 24.5 39.7 0.89 4479 1678039 36.0 0.1114 7314 126 59.5 112 0.718 0.368 0.349 0.326 0.251 - 0.823 0.739 0.694

C 225 x 75 x 16.6 6.0 9.00 2116 14.8 160 132 83.8 1.03 32.2 18.1 22.1 5.03 17.7 29.7 2.00 15333 15769 23.9 2.5394 8992 121 38.6 94.9 0.834 - - - - - - - 0.94814.0 5.0 7.50 1782 12.7 - 113 84.3 0.881 - 15.3 22.2 - 17.3 29.7 1.67 12601 33825 24.1 1.4851 7714 122 38.8 95.5 0.834 0.993 0.984 0.973 0.924 - - - 0.93811.3 4.0 6.00 1441 10.4 - 92.3 84.9 0.721 - 12.4 22.4 - 16.8 29.6 1.33 9945 85389 24.3 0.7683 6353 123 39.1 96.1 0.835 0.896 0.884 0.869 0.806 - - 0.928 0.857

8.6 3.0 4.50 1092 7.98 - 70.9 85.5 0.553 - 9.43 22.5 - 16.4 29.6 1.00 7360 278942 24.4 0.3275 4903 124 39.3 96.7 0.835 0.733 0.717 0.697 0.551 - 0.938 0.826 0.7627.2 2.5 3.75 914 6.73 - 59.8 85.8 0.466 - 7.92 22.6 - 16.1 29.6 0.83 6093 587972 24.5 0.1905 4145 125 39.4 97.1 0.835 0.621 0.589 0.551 0.423 - 0.874 0.767 0.7095.8 2.0 3.00 735 5.44 - 48.4 86.0 0.377 - 6.38 22.6 - 15.9 29.6 0.67 4843 1459069 24.6 0.0980 3364 125 39.5 97.4 0.835 0.526 0.499 0.467 0.359 - 0.799 0.703 0.653

NOTAS : * PANDEO LOCAL DISEÑO POR TENSIONES ADMISIBLES :

perfil trabajando en flexión según eje x-x ó y-y respectivamente, la sección clasifica como DISEÑO POR MFCR :

ó interpolar linealmente con el siguiente margen de error : omitido se refiere a que el alma en compresión por flexión clasifica como esbelta.- Donde no se indica valor de Z, la sección clasifica como

- Qs y Qa tabulados corresponden a perfil trabajando en compresión.- Valor sombreado de ZX ó ZY indica que, para - Valor de Qa está determinado para cálculo de tensiones. - Flexión simple : usar Qs tabulado y SXef = SX.

- Valor de Qa ó Qs no indicado, significa valor unitario. - Flexión compuesta o compresión : usar Qs tabulado y f=FY para determinar Qa.

esbelta si se usan aceros con FY³345 MPa. - Para valores de f distintos de los tabulados, ver tabla 2.4.4- En el caso de flexión según eje y-y, el valor de ZY

- si f < 20 MPa, Qa = 1, sin error - si f ³ 20 MPa, error en Qa varía hasta en ± 3 %- Flexión simple : la tensión máxima es fbFYQs. Además,

esbelta para aceros con FY³235 MPa. SXef=SX para todos los perfiles de la tabla.

TABLA 2.1.5

PERFILES CONFORMADOS EN FRÍO Y PLEGADOSSECCIONES C

Conformados en frío hasta 6 mm

GEOMETRÍA DE LA SECCIÓN Y PROPIEDADES PARA EL DISEÑO

DESIGNACIÓN DIMENSIONES ÁREA EJE X - X EJE Y - Y TORSIÓN Y ALABEO PANDEO LOCAL*

C D x B x Peso t R A x m j f , MPa

mm x mm x kgf/m mm mm mm mm mm mm mm mm MPA mm mm mm mm - 235 248 265 345 20 100 200 310

Qs Qa

IX/106 ZX/103 SX/103 rX IY/106 ZY/103 SY/103 rY xp ia it X1 X2x108 J/104 Cw/106 x0 r0 H=b Fy , MPa

mm2 mm4 mm3 mm3 mm4 mm3 mm3 (1/MPA)2 mm4 mm6

Bb

R

y

m

x x

y

DCC

tx, xp

x0

Bb

R

y

m

x x

y

DCC

tx, xp

x0

C 225 x 50 x 14.3 6.0 9.00 1816 11.3 127 100 78.7 0.318 14.9 8.01 13.2 4.33 10.3 18.9 1.33 17366 12795 13.2 2.1794 2877 143 20.6 82.4 0.938 - - - - - - - 0.85112.0 5.0 7.50 1532 9.65 108 85.8 79.4 0.274 - 6.82 13.4 - 9.90 18.9 1.11 14229 27613 13.4 1.2767 2493 144 20.8 83.1 0.937 - - - - - - 0.913 0.850

9.7 4.0 6.00 1241 7.95 88.2 70.6 80.0 0.226 - 5.58 13.5 - 9.45 19.0 0.89 11197 70107 13.6 0.6616 2073 144 21.0 83.8 0.937 - - - - - - 0.882 0.7917.4 3.0 4.50 942 6.13 - 54.5 80.7 0.175 - 4.27 13.6 - 9.01 19.0 0.67 8263 230260 13.8 0.2825 1615 145 21.3 84.5 0.937 0.950 0.940 0.927 0.872 - 0.928 0.799 0.7196.2 2.5 3.75 789 5.18 - 46.0 81.0 0.148 - 3.60 13.7 - 8.79 19.0 0.56 6831 486618 13.8 0.1644 1372 146 21.4 84.9 0.937 0.863 0.851 0.835 0.767 - 0.854 0.730 0.6635.0 2.0 3.00 635 4.20 - 37.3 81.3 0.121 - 2.91 13.8 - 8.57 19.1 0.44 5423 1210617 13.9 0.0847 1118 146 21.5 85.2 0.936 0.733 0.717 0.697 0.551 - 0.767 0.656 0.598

C 200 x 100 x 28.5 10.0 15.00 3628 21.2 254 212 76.5 3.45 89.7 49.3 30.9 10.9 30.0 40.4 5.00 27258 1349 35.6 12.094 22569 109 60.6 102 0.649 - - - - - - - -23.3 8.0 12.00 2962 17.8 210 178 77.5 2.87 73.4 40.5 31.2 8.69 29.0 40.2 4.00 21204 3529 36.0 6.3192 19025 111 61.0 103 0.653 - - - - - - - -17.8 6.0 9.00 2266 14.0 - 140 78.6 2.24 56.3 31.1 31.4 6.51 27.9 40.0 3.00 15478 11932 36.4 2.7194 15028 112 61.3 105 0.656 0.950 0.940 0.927 0.872 - - - -15.0 5.0 7.50 1907 11.9 - 119 79.1 1.90 47.5 26.2 31.6 5.43 27.4 39.9 2.50 12729 25581 36.6 1.5892 12849 113 61.5 105 0.657 0.863 0.851 0.835 0.767 - - - 0.98312.1 4.0 6.00 1541 9.77 - 97.7 79.6 1.55 - 21.2 31.7 - 27.0 39.8 2.00 10051 64550 36.8 0.8216 10546 114 61.7 106 0.659 0.733 0.717 0.697 0.551 - - 0.975 0.917

9.2 3.0 4.50 1167 7.49 - 74.9 80.1 1.18 - 16.1 31.9 - 26.5 39.8 1.50 7443 210794 36.9 0.3500 8113 115 61.9 106 0.660 0.579 0.549 0.514 0.395 - 0.983 0.890 0.8347.7 2.5 3.75 977 6.31 - 63.1 80.4 0.996 - 13.5 31.9 - 26.2 39.7 1.25 6163 444261 37.0 0.2035 6847 115 62.0 106 0.661 0.495 0.469 0.439 0.337 - 0.930 0.838 0.7866.2 2.0 3.00 785 5.11 - 51.1 80.7 0.804 - 10.9 32.0 - 26.0 39.7 1.00 4899 1102308 37.1 0.1047 5547 116 62.1 107 0.661 0.368 0.349 0.326 0.251 - 0.865 0.781 0.735

C 200 x 75 x 15.4 6.0 9.00 1966 11.2 134 112 75.4 0.999 31.9 17.8 22.5 5.29 18.9 29.9 2.25 16820 10222 24.8 2.3594 6777 106 40.7 88.6 0.789 - - - - - - - -13.0 5.0 7.50 1657 9.56 - 95.6 76.0 0.852 26.8 15.1 22.7 4.40 18.4 29.9 1.88 13809 21990 25.0 1.3809 5822 107 40.9 89.2 0.790 0.993 0.984 0.973 0.924 - - - 0.98110.5 4.0 6.00 1341 7.85 - 78.5 76.5 0.698 - 12.2 22.8 - 17.9 29.8 1.50 10887 55671 25.2 0.7149 4801 108 41.1 89.8 0.790 0.896 0.884 0.869 0.806 - - 0.971 0.905

8.0 3.0 4.50 1017 6.04 - 60.4 77.1 0.535 - 9.30 22.9 - 17.5 29.8 1.13 8049 182371 25.4 0.3050 3711 109 41.4 90.4 0.791 0.733 0.717 0.697 0.551 - 0.980 0.874 0.8096.7 2.5 3.75 852 5.10 - 51.0 77.3 0.451 - 7.81 23.0 - 17.2 29.8 0.94 6660 384946 25.5 0.1775 3139 109 41.5 90.7 0.791 0.621 0.589 0.551 0.423 - 0.919 0.814 0.7555.4 2.0 3.00 685 4.13 - 41.3 77.6 0.365 - 6.29 23.1 - 17.0 29.7 0.75 5291 956568 25.6 0.0914 2549 110 41.6 91.0 0.791 0.526 0.499 0.467 0.359 - 0.845 0.749 0.697

C 200 x 50 x 13.1 6.0 9.00 1666 8.35 105 83.5 70.8 0.309 14.6 7.92 13.6 4.51 11.0 19.2 1.50 19070 8236 13.9 1.9994 2171 118 21.9 75.4 0.915 - - - - - - - 0.94111.0 5.0 7.50 1407 7.19 89.6 71.9 71.5 0.266 12.2 6.75 13.8 3.76 10.6 19.2 1.25 15604 17834 14.1 1.1726 1884 119 22.2 76.1 0.915 - - - - - - 1.000 0.903

9.0 4.0 6.00 1141 5.93 73.3 59.3 72.1 0.220 - 5.52 13.9 - 10.1 19.3 1.00 12264 45428 14.3 0.6083 1568 120 22.4 76.8 0.915 - - - - - - 0.934 0.8456.8 3.0 4.50 867 4.58 - 45.8 72.7 0.171 - 4.23 14.0 - 9.66 19.3 0.75 9040 149678 14.5 0.2600 1224 121 22.6 77.4 0.915 0.950 0.940 0.927 0.872 - 0.976 0.852 0.7765.7 2.5 3.75 727 3.88 - 38.8 73.0 0.144 - 3.56 14.1 - 9.43 19.3 0.63 7469 316817 14.6 0.1514 1040 121 22.7 77.8 0.915 0.863 0.851 0.835 0.767 - 0.906 0.782 0.7134.6 2.0 3.00 585 3.15 - 31.5 73.3 0.117 - 2.88 14.2 - 9.21 19.3 0.50 5925 789403 14.6 0.0780 848.4 122 22.9 78.1 0.914 0.733 0.717 0.697 0.551 - 0.819 0.706 0.645

C 175 x 100 x 21.7 8.0 12.00 2762 13.0 175 149 68.6 2.74 72.0 39.6 31.5 13.8 30.8 40.2 4.57 23697 2145 37.2 5.8925 13771 102 64.0 99.0 0.582 - - - - - - - -16.6 6.0 9.00 2116 10.3 - 117 69.6 2.14 55.4 30.5 31.8 11.9 29.7 40.0 3.43 17249 7305 37.6 2.5394 10916 104 64.3 100 0.586 0.950 0.940 0.927 0.872 - - - -14.0 5.0 7.50 1782 8.77 - 100 70.2 1.82 46.8 25.7 31.9 10.9 29.2 39.8 2.86 14167 15716 37.8 1.4851 9350 105 64.5 100 0.588 0.863 0.851 0.835 0.767 - - - -11.3 4.0 6.00 1441 7.19 - 82.2 70.7 1.48 - 20.8 32.1 - 28.7 39.7 2.29 11172 39796 38.0 0.7683 7687 105 64.6 101 0.590 0.733 0.717 0.697 0.551 - - - 0.960

8.6 3.0 4.50 1092 5.53 - 63.2 71.2 1.13 - 15.8 32.2 - 28.2 39.6 1.71 8262 130406 38.1 0.3275 5924 106 64.8 102 0.592 0.579 0.549 0.514 0.395 - - 0.934 0.8807.2 2.5 3.75 914 4.66 - 53.3 71.4 0.954 - 13.2 32.3 - 27.9 39.6 1.43 6837 275309 38.2 0.1905 5004 107 64.9 102 0.593 0.495 0.469 0.439 0.337 - 0.971 0.884 0.8335.8 2.0 3.00 735 3.77 - 43.1 71.7 0.771 - 10.7 32.4 - 27.7 39.5 1.14 5432 684265 38.3 0.0980 4058 107 65.0 102 0.594 0.368 0.349 0.326 0.251 - 0.910 0.827 0.781

C 175 x 75 x 14.3 6.0 9.00 1816 8.12 111 92.8 66.9 0.958 31.5 17.5 23.0 5.63 20.2 30.0 2.57 18708 6246 25.9 2.1794 4913 93.4 43.1 82.8 0.730 - - - - - - - -12.0 5.0 7.50 1532 6.96 - 79.6 67.4 0.818 26.5 14.8 23.1 4.68 19.7 30.0 2.14 15338 13487 26.1 1.2767 4229 94.3 43.3 83.4 0.731 0.993 0.984 0.973 0.924 - - - -

9.7 4.0 6.00 1241 5.73 - 65.5 68.0 0.670 - 12.0 23.2 - 19.2 29.9 1.71 12076 34266 26.3 0.6616 3493 95.3 43.5 84.0 0.732 0.896 0.884 0.869 0.806 - - - 0.9547.4 3.0 4.50 942 4.42 - 50.5 68.5 0.515 - 9.15 23.4 - 18.7 29.9 1.29 8916 112650 26.4 0.2825 2704 96.2 43.7 84.5 0.733 0.733 0.717 0.697 0.551 - - 0.924 0.8616.2 2.5 3.75 789 3.73 - 42.7 68.8 0.434 - 7.68 23.5 - 18.5 29.8 1.07 7373 238197 26.5 0.1644 2290 96.6 43.8 84.8 0.734 0.621 0.589 0.551 0.423 - 0.966 0.866 0.8065.0 2.0 3.00 635 3.03 - 34.6 69.0 0.351 - 6.19 23.5 - 18.2 29.8 0.86 5853 592936 26.6 0.0847 1861 97.1 43.9 85.1 0.734 0.526 0.499 0.467 0.359 - 0.896 0.800 0.746

NOTAS : * PANDEO LOCAL DISEÑO POR TENSIONES ADMISIBLES :

perfil trabajando en flexión según eje x-x ó y-y respectivamente, la sección clasifica como DISEÑO POR MFCR :

ó interpolar linealmente con el siguiente margen de error : omitido se refiere a que el alma en compresión por flexión clasifica como esbelta.- Donde no se indica valor de Z, la sección clasifica como

- Qs y Qa tabulados corresponden a perfil trabajando en compresión.- Valor sombreado de ZX ó ZY indica que, para - Valor de Qa está determinado para cálculo de tensiones. - Flexión simple : usar Qs tabulado y SXef = SX.

- Valor de Qa ó Qs no indicado, significa valor unitario. - Flexión compuesta o compresión : usar Qs tabulado y f=FY para determinar Qa.

esbelta si se usan aceros con FY³345 MPa. - Para valores de f distintos de los tabulados, ver tabla 2.4.4- En el caso de flexión según eje y-y, el valor de ZY

- si f < 20 MPa, Qa = 1, sin error - si f ³ 20 MPa, error en Qa varía hasta en ± 3 %- Flexión simple : la tensión máxima es fbFYQs. Además,

esbelta para aceros con FY³235 MPa. SXef=SX para todos los perfiles de la tabla.

E [Mpa] 200000fy [Mpa] 250

1. Clasificación de la sección

Alas

b [mm] 60.00

Ctf [mm] 6

1010.748023128.2842712

Alma

h [mm] 95

Ctw [mm] 6

λw 15.8333333λpw 106.34886λrw 161.220346

2. Diseño Flexión

φb 0.9Ωb 1.67

Cb 1

2.1 Yielding

Mp [N-mm] 17221436.719Mn1 [N-mm] 17221436.719

2.2 Lateral Torsional Buckling

Lb [mm] 1417

Lp [mm] 1179.8721521

ho [mm] 119c 1.1767627242

rts [mm] 27.085652377

Lr [mm] 5007.4905125

(a) Lb < Lp:

Mn(a) [N-mm] 17221436.719

(b) Lp < Lb < Lr:

λfλpfλrf

Mn(b) [N-mm] 16790968.215

(c) Lr < Lb:

Fcr [Mpa] 927.63124103Mn(c) [N-mm] 54454575.081

Mn2 [N-mm] 16790968.215

3. Resultados

Mn [N-mm] 16790968.215

LRFD φb*Mn [N-mm] 15111871.393ASD Mn/Ωb [N-mm] 10054471.985

LRFD φb*Mn [kgf-cm] 154045.57995ASD Mn/Ωb [kgf-cm] 102492.06916