= 2/3 x1/2x854.4 x 5.75 = 1637.6 kg/m =1/2 x 854.4 x 1.5 – 1/3 x1/2 x 854.4 x 1.5²/3= 534 kg/m = 0.15 x 1700 x1.5 x 4. = 1530 kg/m = 0.05 x 1.5 x 2600 x 4 = 780 kg/m = 0.15 x 0.20 x 2400 = 72 kg/m Q
momen : m lapangan
= 1/14 x Q x L² = 1/14 x 3.773 x 5.75² m tumpuan = 1/12 x Q x L² = 1/12 x 3.773 x 5.75² D max =1/2 x 3.773 x 5.75 = 10.85 kn
=8.910 knm = 10.395 knm
= 3773.6 kg/m = 3.773 kn/m
TUGAS MERENCANA KONSTRUKSI BETON
ρmin =1.4 /fy =1.4 / 360 =0.00388 ρmakz =((0.75 x 0.85 x 0.89 x 25) x 600 /(360 x (600 +360))) = 0.02463 momen : (fy /(0,85 x fc))= (360 /( 0,85 x 25))=16,94 mpa Penulangan : M lap = 8.910 knm Mn lap = 8.910 /0.8 = 11.137 knm d = 20 -2-0.8-0.8 = 16.4 cm =0.164 m
= 2/3 x1/2x854.4 x 7.75 = 2207 kg/m =1/2 x 854.4 x 1.5 – 1/3 x1/2 x 854.4 x 1.5²/3= 534 kg/m = 0.15 x 1.5 x 1700 x 4 = 1530 kg/m =0.05 x 1.5 x 2600 x 4 = 780 kg/m =0.15 x 0.20 x 2400 = 72 kg/m Q
= 5123 kg/m
TUGAS MERENCANA KONSTRUKSI BETON
= 5.123 kn/m
momen : m lapangan
= 1/14 x Q x L² = 1/14 x 5.123 x 7.75² =21.97 knm m tumpuan = 1/12 x Q x L² = 1/12 x 5.123 x 7.75² = 25.64 knm D max =1/2 x 5.123 x 7.75 = 19.85 kn ρmin =1.4 /fy =1.4 / 360 =0.00388 ρmakz =((0.75 x 0.85 x 0.89 x 25) x 600 /(360 x (600 +360))) = 0.02463 momen : (fy /(0,85 x fc))= (360 /( 0,85 x 25))=16,94 mpa Penulangan : M lap = 21.97 knm Mn lap = 21.97 /0.8 = 27.46 knm d = 20 -2-0.8-0.8 = 16.4 cm =0.164 m
= 2/3 x1/2 x 854.4 x 3.25 = 925.6 kg/m =1/2 x 854.4 x 1.5 – 1/3 x1/2 x 854.4 x 1.5²/3= 534 kg/m = 0.15 x 1.5 x 1700 x4 = 1530 kg/m =0.05 x 1.5 x 2600 x 4 = 780 kg/m =0.15 x 0.20 x 2400 = 72 kg/m Q
momen : m lapangan
= 3841.6 kg/m = 3.841 kn/m
= 1/14 x Q x L² = 1/14 x 3.841 x 3.25² =2.89 knm m tumpuan = 1/12 x Q x L² = 1/12 x 3.841 x 3.25² = 3.38 knm D max =1/2 x 3.841 x 3.25 = 6.24 kn ρmin =1.4 /fy =1.4 / 360 =0.00388 ρmakz =((0.75 x 0.85 x 0.89 x 25) x 600 /(360 x (600 +360))) = 0.02463 momen : (fy /(0,85 x fc))= (360 /( 0,85 x 25))=16,94 mpa Penulangan : M lap = 2.89 knm Mn lap = 2.89 /0.8 = 3.62 knm d = 20 -2-0.8-0.8 = 16.4 cm =0.164 m