Uas2012.docx

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STRUKTUR BAJA 1 : UTS 2012

q kg/m

4M

8M

Diketahui : Struktur rangka seperti gambar, jarak antara rangka 4 meter Profil yang digunakan pada rangka utama : Elemen Tarik : 2 L 70.70.7 (jarak antar profil 1 cm):

A = 18,8 cm2 ; Ix = 84.80 cm4; Iy = 199,50 cm4 ; ix = 2,12 cm; iy = 3,26 cm ; Sx = 16,86 cm3; Sy = 26,60 cm3 Elemen Tekan : 2 L 100.100.10 (jarak antar profil 1 cm): A = 38 cm2 ; Ix = 350 cm4; Iy = 768,85 cm4 ; ix = 3,03 cm; iy = 4,50 cm ; Sx = 48,75 cm3; Sy = 73,22 cm3

Mutu profil : fu = 500 MPa , fy = 325 MPa Digunakan baut diameter 12 mm Mutu baut : fu = 600 MPa , fy = 350 MPa Hitung :

q maksimum

P

1 2 3 24 M

Diketahui : Struktur rangka seperti gambar , beban P = 5 ton Mutu profil : fu = 500 MPa , fy = 325 MPa Mutu baut : fu = 600 MPa , fy = 350 MPa Data lainnya ditentukan sendiri Hitung :

Dimensi elemen 1, 2 dan 3

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