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PERHITUNGAN BASE PLATE

f'c = 35 Mpa

fy = 240 Mpa fu = 400 Mpa

Profil Siku 25 25 3

Dimensi Kolom = 400 x 400 mm

TETAP SEMENTARA

1 0 0

2 2204.469021 1721.3625763 1494.704014 1159.749673

39 40 4 -58.1900346 -162.0651406

5 -1232.41395 -1162.599231

6 -1992.50728 -1807.35568

1 2 7 -2340.75072 -2100.033458

8 -2307.18411 -2071.647958

9 -1854.12565 -1680.175575

10 836.7157007 462.3790211

11 -101.782371 -258.7337104

12 -730.284925 -649.5082066

13 -1159.22026 -941.7358276

Tetap (Kg) Sementara (Kg) 14 -1388.40663 -1135.253314

F1 = 0 0 15 -1417.84867 -1230.063313

F39 = -3392.000 -3632.000 16 -1247.57926 -1226.198207

F39x = -2937.55817 -0.5 17 -877.592298 -1123.651236

F39y = 0.866025404 -1816 18 0 0

F40 = 896.5197461 720.5976424 19 -569.706567 -201.2301146

F2 = 2204.469021 1721.362576 20 -569.706567 -201.2301146

F2x = 1909.126174 1490.74372 21 199.7205013 199.7204349

F2y = 1102.234511 860.6812879 22 769.4285059 501.9881969

Nu = -291.0112 -1190.0398 23 1139.415256 705.5711689

Pu = 1999.6203 2210.8414 24 1309.689445 810.4772517

25 1280.221902 816.68083

26 1051.061088 724.2248106

27 826.7885492 473.5866868

28 403.2439869 124.6364108

29 5.860819885 -243.7143706

30 320.3783788 -71.8827951431 429.6877041 -24.69123737

72 32 370.617737 -111.6089833

73 33 91.19945601 -391.9400209

17 34 -383.387584 -839.1280194

18 35 -1074.45394 -1470.7917

36 -1980.65895 -2285.054378

37 -3072 -3264

38 0 0

39 -3392 -3632

40 896.5197461 720.5976424

Tetap (Kg) Sementara (Kg) 41 -709.765007 -561.6129026

F17 = -878 -1124 42 709.7650073 561.6129026

F17x = -760.0172242 -973.1105157 43 -499.97179 -380.8532065

F17y

= -438.796149 -561.8256182 44 523.0145795 402.9095896

F72 = 570 201 45 -268.363988 -184.2303238

46 265.4765047 180.1076925

47 -68.3757719 -12.6347601

F73 = 569.7065666 201.2301146 48 73.99238156 17.96159317

F73x= 493.3803594 174.2703913 49 121.8838704 150.3747377

F73y= 284.8532833 100.6150573 50 -124.326998 -151.8242464

F18= 0 0 51 308.1910407 303.9645813

Nu = -266.6369 -798.8401 52 -312.06459 -307.5053654

Pu = -153.9429 -461.2106 53 512.3148374 478.9077859

54 -512.345566 -478.6298413

Untuk Perhitungan dipakai 55 712.9999353 599.7545347

H

1. Tumpuan A

2. Tumpuan B

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Nu = -1190.0398 Kg = -11.9004 KN 56 -204.526641 9.048163815

Pu = 2210.8414 Kg = 22.1084 KN 57 822.7726222 647.1372493

Mu = -127929.2766 kgmm = -1279.2928 KNmm 58 -623.763574 -549.080827

59 623.6309202 548.9574718

1. Dicoba menggunakan base plate ukuran 400 400mm2 60 -424.000184 -450.3609917

luas base plate A1 160000mm2

61 628.6342749 390.8939877

luas penampang kolom A2 160000mm2

62 -428.904703 -292.1977952

fpp = 0,85 . f'c . Sqrt (A2/A1) 29.75 63 428.8743644 292.1722492

fpp izin = 0,6 . 1,7 . f'c 35.7 64 -229.180523 -193.5107213fpp okaay 65 229.172227 193.502477

66 -29.4500673 -94.81767428

188.125 mm 67 29.45728875 94.82460624

68 170.2688195 3.864751987

189.375 mm 69 -170.267481 -3.863538693

70 369.9876166 102.5474331

cek tegangan 71 -369.987191 -102.5469737

fc1,2=Pu/(B.N)Mu.N/2/(1/12.B.N3) fpp 72 569.7065666 201.2301146

fc1= 0.018243888 mpa 73 569.7065666 201.2301146

fc2= 0.258111282 mpa

fc okaay

2. Menentukan tebal base plate

a = fc2.N/(fc1+fc2) 430.4232903 mmfcx= (a-n).fc2/a 0.144549063 mpa

Mpl = fcx/2.n2+n

2/3.(fc2-fcx) 3949.530095 mpa

tp sqrt(4.Mpl/(.fy) 8.552160324 mm

10 mm

3. Menentukan kekuatan angkur (dynsbolt)

d baut = 20 mm

jumlah = 4 buah

panjang baut = 60 mm

Tbaut = 7900 N

Tu = (Mu-Pu.x1)/x2 -15566.51273 N

Tu.fk dynabolt = Tu.3 -46699.53818 N

tiap baut menahan tegangan sebesar (Tu tiap baut) -7783.256363 N oke

4. Kontrol lebar base plate

jarak min. antar baut 150 mm

jarak min. baut tepi 75 mm

lebar penampang min 340 mm

digunakan baseplate dengan tebal

lebar penampang okee

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