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Pertemuan 14 Slope Deflection Method

Pertemuan 14 Slope Deflection Method. Matakuliah : S0114 / Rekayasa Struktur Tahun : 2006 Versi : 1. Learning Outcomes. Pada akhir pertemuan ini, diharapkan mahasiswa akan mampu : Mahasiswa dapat menghitung struktur dengan slope deflection method. Outline Materi.

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Pertemuan 14 Slope Deflection Method

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  1. Pertemuan 14 Slope Deflection Method Matakuliah : S0114 / Rekayasa Struktur Tahun : 2006 Versi : 1

  2. Learning Outcomes Pada akhir pertemuan ini, diharapkan mahasiswa akan mampu : • Mahasiswa dapat menghitung struktur dengan slope deflection method

  3. Outline Materi • Analisa portal satu tingkat akibat perpindahan tumpuan

  4. C 2I 2I A B 10 10 8 12 12 1,5I D Contoh: Portal ABCD seperti tergambar ini. Portal tidak bergoyang, dengan sendi di A. • kmod AB = 3/4 . 2/20 = 3/40 • kBC = 2/20 = 4/40 • kCD = 1,5./12 = 3/24 = 5/40 • kAB : kBC : kCD = 3 : 4 : 5

  5. distribusi momen

  6. 40 32 C B 44,6 A 126,3 D ( ( ( ( ) M ( Free body Diagram momen

  7. 2 t/m’ 1 t/m’ E D 2I I 2 A 2I 3 2I P= 4 t 2 4 3 C Contoh: Portal statis tidak tertentu ditumpu di A, B dan C seperti gambar Menentukan FEM : MAB= 1/12.2.32= 1,5 tm= - MDA MDE= - MED= 1/12.1.42= 1,3 tm -MDB= MBD= 4.2.22/42= 2 tm

  8. Kekakuan: AD= 1/3.6= 2 DE= 2/4.6= 3 DB= 2/4.6= 3 DA : DE : DB = 0,25 : 0,375 : 0,375 EC= 2/3.6= 4 ED : EC = 0,43 : 0,57

  9. Perataan momen

  10. = 0 = 0 2,59 2 t/m’ 1 t/m’ 1,6t 0,4 A D D E 0,4 1,6t 2 25 + - + 2,59 - 0,93 D ( ( ( ( ( P=4 4 + M ) B 2,49 (

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