Tugas 1 Baja Kelompok 6.docx

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Tugas 1 Baja Kelompok 6 Senin, 18 Maret 2019

Anggota Kelompok : 1. 2. 3. 4. 5. 6. 7.

DWI ANDRA HARMOYO A DALIN JUNIOR M ADELIA CHESSY UMI SAADAH ZAINAL ARIFIN HASTOMO HIMAWAN S ALIF ANANTO

Soal :

Profil Baja = 2L 100 100 10 -

Ag = 3800 mm2

Mutu Baja 37 -

fu= 370 MPa fy=240 MPa E = 200.000 MPa

Menggunakan baut mutu tinggi dengan diameter 19 mm

21010117130138 21010117140138 21010117140140 21010117130134 21010117140137 21010117140136 21010117130136

Penyelesaian : RA = ½ P RB = ½ P

Gaya Batang 1 ½ P + S3 Sin θ = 0 ½ P + S3 3/5 = 0 S3 = -5/6 P

S1 - S3 Cos θ = 0 S1 – 5/6 P. 4/5 = 0 S1 = 2/3 P

Berdasarkan SNI 1729:2015 ; BAB D2 Nu ≤ Pn Nu ≤ Ф fy. Ag Nu ≤ Ф fy. Ag

Untuk Penampang Bruto Nu ≤ 0,9 x 3800 x 240 Nu ≤ 820.000 N Nu ≤ 820,8 N

Untuk Penampang Netto Nu ≤ 0,75 x 085 x 3800 x 370 ≤ 896.325 N ≤ 896,325 kN Menentukan Pu Max Pu Max = = =

Nu Gaya S1

896,325 2𝑃 3

1344,487 𝑃

kN

Jadi, berdasarkan kapasitas batang 1, P max yang boleh bekerja adalah

1344,487 𝑃

kN

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