7. Khai Bao Subdivide

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  • 4.7 Phn tch Automatic Mesh ca Frame v Area. 4.7.1 Automatic Frame mesh

    Ch c version Sap2000 v9 tr i

    Sap2000 tnh ton da trn phng php phn t hu hn, cc phn t c chia cng nh th tnh ton cng chnh xc. Tuy nhin vic chia cc phn t qu nh dn n chng trnh nng nn v tc x l s rt chm, cng nh kh khn khi xut kt qu. Vi cc phin bn Sap cao cho php ngi dng c th chia cc phn t t ng (Sap t chia trong qu trnh chy v t kt hp khi hin th kt qu).

    Hnh v trn, moment ca thanh dm nm ngang khi dng subdivide (bn phi) v dng no auto subdivide (bn tri).

    khai bo ngi dng thc hin cc bc sau: - Chn frame cn chia t ng. - Trn menu Assign chn Frame sau chn Automatic Frame mesh xut hin hp

    thoi nh hnh v:

    - C cc la chn No Auto Subdivision (khng chia), chn Auto Subdivide Frame (at Intermediate Joints chia ti nhng ni c nt, at intersection with other frames chia ti cc cc v tr m cc frame ct nhau, Minimum Number of Segments Nhp v s on chia nh nht, Maximum Length of Segments Nhp s khong cch ln nht). Ngi dng cng c th thay i n v bng cch chn n v mi trong mc Units.

    - Chn OK kt thc vic khai bo.

  • 4.7.2 Automatic Area Mesh Cng ging nh Frame, khi s dng Automatic Area Mesh cho php chia nh sn mt cch

    t ng trong qu trnh tnh ton. Ti mi im chia nh, Sn v dm s c chuyn v cng nhau. Vic chia nh sn s lm cho kt qu tnh ton ni lc dm m sn truyn ti ln mt cch chnh xc hn.

    khai bo ngi dng thc hin cc bc sau: - Chn Shell cn chia t ng. - Trn menu Assign chn Area sau chn Automatic Area mesh xut hin hp thoi

    nh hnh v:

    - C cc la chn No Auto Meshing (khng chia), chn Mesh Area Into This Number of Objects (chia i tng thnh bao nhiu phn theo phng t 1 n 2 v t 1 n 3). Mesh Area Into Objects of This Maximum Size (chia i tng thnh cc phm c kch thc ln nht theo 2 phng), Mesh Area Based On Points On Area Edges (chia i tng thnh cc phn da trn cc im v ng thng), .

    - Chn OK kt thc vic khai bo.

    Khng s dng chia t ng, cc phn t lm vic tch ri nhau

  • Chia phn t t ng, cc phn t lm vic cng nhau