Vorm-actieve constructies. Vrije Universiteit Brussel, Afdeling ...
Vorm-actieve constructies. Vrije Universiteit Brussel, Afdeling ...
Vorm-actieve constructies. Vrije Universiteit Brussel, Afdeling ...
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<strong>Vrije</strong> <strong>Universiteit</strong> <strong>Brussel</strong> <strong>Vorm</strong>-<strong>actieve</strong> <strong>constructies</strong>. 03/01/09<br />
Langste spankabel:<br />
Fig. 395. Krachten onder sneeuwlast [kN].<br />
FROM TO FORCE STRESSED FORCE STIFFNESS ELEVATION UNSTRESSED<br />
(Ts) LENGTH DENSITY ANGLE(α) LENGTH<br />
41073101 41073102 1.8869 1.1249 1.6753 1000.00 27.2887 1.1228<br />
41073102 41073103 1.9676 1.1053 1.7801 1000.00 25.2503 1.1031<br />
41073103 41073104 2.0353 1.0759 1.8855 1000.00 22.5348 1.0737<br />
41073104 41073105 1.9889 1.0475 1.8987 1000.00 16.4512 1.0454<br />
41073105 41073106 1.9853 1.0265 1.9340 1000.00 10.7574 1.0245<br />
41073106 41073107 1.9700 1.0154 1.9399 1000.00 4.1734 1.0134<br />
41073107 41073108 1.9686 1.0146 1.9402 1000.00 -2.8500 1.0126<br />
41073108 41073109 1.9882 1.0241 1.9412 1000.00 -10.3441 1.0221<br />
41073109 41073110 1.9659 1.0435 1.8834 1000.00 -15.3930 1.0415<br />
41073110 41073111 1.9883 1.0709 1.8505 1000.00 -21.3716 1.0688<br />
41073111 41073112 1.9630 1.1007 1.7823 1000.00 -24.9191 1.0985<br />
41073112 41073113 1.8980 1.1251 1.6856 1000.00 -27.0391 1.1230<br />
=> Hs = 1.690 kN<br />
Langste draagkabel:<br />
FROM TO FORCE STRESSED FORCE STIFFNESS ELEVATION UNSTRESSED<br />
(Tbdmax) LENGTH DENSITY ANGLE(α) LENGTH<br />
41013107 41023107 8.0582 1.1298 7.1301 2001.00 -29.5956 1.1253<br />
41023107 41033107 7.7485 1.1099 6.9799 2001.00 -25.9350 1.1056<br />
41033107 41043107 7.4379 1.0801 6.8781 2001.00 -20.6987 1.0761<br />
41043107 41053107 7.2559 1.0514 6.8946 2001.00 -16.1649 1.0476<br />
41053107 41063107 7.0716 1.0302 6.8633 2001.00 -9.7592 1.0266<br />
41063107 41073107 6.9863 1.0190 6.8548 2001.00 -3.5449 1.0155<br />
41073107 41083107 6.9838 1.0181 6.8593 2001.00 2.6693 1.0146<br />
41083107 41093107 7.0563 1.0278 6.8651 2001.00 8.7577 1.0242<br />
41093107 41103107 7.2050 1.0474 6.8786 2001.00 14.6597 1.0436<br />
41103107 41113107 7.4283 1.0751 6.9062 2001.00 20.1717 1.0711<br />
41113107 41123107 7.7453 1.1052 7.0072 2001.00 25.4824 1.1009<br />
41123107 41133107 8.0379 1.1301 7.1107 2001.00 29.1476 1.1256<br />
=> Hbdmax = 7.020 kN<br />
Centraal knooppunt:<br />
NODES COORDINATES COORDINATE CHANGES APPLIED FORCES RESIDUAL FORCES<br />
POINTNO. X Y Z DX DY DZ RX RY RZ U V W<br />
41073107 5.000 4.884 2.486 0.000 0.000 -0.014 0.00 0.00 -0.52 0.00 0.00 0.00<br />
=> fs = 2.486 m<br />
fd = 2.514 m<br />
Uit de volgende figuur blijkt dat de grootste verplaatsing niet<br />
voorkomt in het midden van de constructie.<br />
Fig. 396. Grafische voorstelling van de verplaatsingen onder sneeuwlast.<br />
Vaste knooppunten, met hun coördinaten en de reactiekrachten:<br />
NODES COORDINATES COORDINATE CHANGES APPLIED FORCES RESIDUAL FORCES<br />
POINTNO. X Y Z DX DY DZ RX RY RZ U V W<br />
99000001 0.00 0.00 5.00 0.00 0.00 0.00 0.00 0.00 -0.087 77.81 77.82 -64.20<br />
99000002 0.00 10.00 0.00 0.00 0.00 0.00 0.00 0.00 -0.100 59.18 -59.18 46.05<br />
99000003 10.00 10.00 5.00 0.00 0.00 0.00 0.00 0.00 -0.100 -77.83 -77.82 -64.21<br />
99000004 10.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -0.087 -59.16 59.17 46.04<br />
De maximale horizontale kracht bekomen volgen EASY<br />
Hbdmax = 7.020 kN<br />
ligt hoger dan deze bekomen in de methode van Prof. Moenaert<br />
Hbdmax = 6.59 kN<br />
Prof. M. Mollaert 214