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STRUKTUR PORTAL BIDANG

STRUKTUR PORTAL BIDANG. MATRIKS KEKAKUAN ELEMEN PORTAL 2-D PADA SUMBU LOKAL [K] L. MATRIKS TRANSFORMASI ELEMEN PORTAL-2D. MATRIKS KEKAKUAN ELEMEN PORTAL 2-D PADA SUMBU GLOBAL [K] g. Joint- i adalah SENDI. sb-y ; v , g. E, A, I, L. j. i. sb-x ; u , f. Kekakuan elemen

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STRUKTUR PORTAL BIDANG

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  1. STRUKTUR PORTAL BIDANG

  2. MATRIKS KEKAKUAN ELEMEN PORTAL 2-D PADA SUMBU LOKAL [K]L

  3. MATRIKS TRANSFORMASI ELEMEN PORTAL-2D

  4. MATRIKS KEKAKUAN ELEMEN PORTAL 2-D PADA SUMBU GLOBAL [K]g

  5. Joint-i adalah SENDI sb-y ; v , g E, A, I, L j i sb-x ; u , f Kekakuan elemen pada sumbu lokal Kekakuan elemen pada sumbu global

  6. Joint-jadalah SENDI E, A, I, L j i sb-y ; v , g sb-x ; u , f Kekakuan elemen pada sumbu lokal Kekakuan elemen pada sumbu global

  7. OVER-ALL STIFFNESS MATRIX ....untuk 1 elemen dengan node i dan j ......untuk rangka bidang dengan node sejumlah n

  8. BOUNDARY CONDITIONS {Fe}= “Prescribed external force vector” {Fr} = “Un-known reaction vector” {Uu} = “Un-known displacement vector” {Uk} = “Known displacement vector “given by boundary condition. [Kij] = “Sub-matrix of overall stiffness matrix”.

  9. Stiffness by Definition vs Direct Stiffness = X Uunknown Fknown K = X K completed Uknown Funknown Zero Unless Settlement Occurs Reactions

  10. UN-KNOWN DISPLACEMENT & REACTION SEHINGGA DIPEROLEH ;

  11. MEMBERS FORCES dimana ;

  12. CONTOH SOAL

  13. vi ; gi vj ; gj STRUKTUR BALOK i ; mi j ; mj K =

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