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Tinjauan Portal Tengah Profil baja INP 45

Diambil portal terpanjang, = 5.6 m = 560 cm

= 5.6 m = 560 cm

Panjang jalur pembebanan = 1/2.L1 + 1/2.L2 Tebal lantai = 10 cm = 0.1 m

= 1/2 x 5.6 + 1/2 x 5.6 Panjang bentang baja = 6.7 m = 670 cm

= 5.6 m

45

h = mm A = cm2 Iy = cm4

b = mm G = kg/m' iy = cm

d = mm Sx = cm3 Wx = cm3

t = mm Ix = cm4 Wy = cm3

ht = mm ix = cm

Pembebanan (beban yang ditinjau hanya beban mati saja)

Beban Mati

- Berat sendiri baja INP 45 = kg/m

- 0.10 x 5.6 x 2400 = kg/m

- Adukan beton 30 x 5.6 = kg/m

- Berat bekisting 20 = kg/m

qdl = kg/m

Beban hidup = 0 kg/m x 5.6 =

Beban Total (Wu) = 1,2x 1647 + 1.6 x 0

= kg/m

Mutu Baja Bj 37

- Tegangan ijin (s) = kg/cm2

- Tegangan ijingeser (t) = 0.6 x (s) ijin= kg/cm2

- Lendutan ijin (D) = L 670600 600

Perhitungan Statika

- Wu = kg/m Wu = kg/m

- Mmax = 1/8 x Wu x L^2= 1/8x x 6.7 ^2

= kg.m 6.7 m

- Dmax = 1/2 x Wu x L

= 1/2x x 6.7

= kg

Kontrol Kekuatan dan Kekakuan

- Terhadap tegangan lentur (s)

s =

= kg/cm2

- Terhadap tegangan geser (t)t = Dmax x Sx

d x Ix

x

x

= kg/cm2

- Terhadap lendutan (D)

D =

5 x x 670 ^4

384 x x

= 1.12 cm ..........................OK

bentang 2 (L2)

bentang 1 (L1)

Berat sendiri lantai

363

147

115

1200

450

Data Profil Baja INP

170

16.2

24.3 45850

17.7

1730

3.43

2040

203

1.12 cm

115

1344

168

20

1647

6620.94

1600

928

= =

1976.41976.4

1976.4

11090.075

1976.4

Wx s

11090.07

2040 1600=

543.63 1600

t

=

106.97

928 kg/cm2

928

6620.94 1200

4585016.2

=

= 1.12 cm

1976.4

200000 45850

0.56551

..........................OK

..........................OK

1976.4

0

1.12 cm

1.99133E+133.52128E+12

384 x E . Ix D

5 x Wu x L^4

kg/cm2

Mmax

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Tinjauan Portal Tengah Profil baja INP 42.1/2

Diambil portal terpanjang, = 6.7 m = 670 cm

= 5.4 m = 540 cm

Panjang jalur pembebanan = 1/2.L1 + 1/2.L2 Tebal lantai = 12 cm = 0.12 m

= 1/2 x 6.7 + 1/2 x 5.4 Panjang bentang baja = 5.6 m = 560 cm

= 6.05 m

42.1/2h = mm A = cm2 Iy = cm4

b = mm G = kg/m' iy = cm

d = mm Sx = cm3 Wx = cm3

t = mm Ix = cm4 Wy = cm3

ht = mm ix = cm

Pembebanan (beban yang ditinjau hanya beban mati saja)

Beban Mati

- Berat sendiri baja INP 42.1/2 = kg/m

- 0.1 x 6.05 x 2400 = kg/m

- Adukan beton 30 x 6.05 = kg/m

- Berat bekisting 20 = kg/m

qdl = kg/mBeban hidup = 0 kg/m x 6.1 =

Beban Total (Wu) = 1,2x 2048 + 1.6 x 0

= kg/m

Mutu Baja Bj 37

- Tegangan ijin (s) = kg/cm2

- Tegangan ijingeser (t) = 0.58 x (s) ijin= kg/cm2

- Lendutan ijin (D) = L 560600 600

Perhitungan Statika

- Wu = kg/m Wu = kg/m

- Mmax = 1/8 x Wu x L^2

= 1/8x x 5.6 ^2

= kg.m 5.6 m

- Dmax = 1/2 x Wu x L

= 1/2x x 5.6

= kg

Kontrol Kekuatan dan Kekakuan

- Terhadap tegangan lentur (s)

s =

= kg/cm2

- Terhadap tegangan geser (t)

t = Dmax x Sxd x Ix

x

x

= kg/cm2

- Terhadap lendutan (D)

D =

5 x x 560 ^4

384 x x

= 0.93 cm ..........................OK

1440

bentang 1 (L1)

bentang 2 (L2)

Data Profil Baja INP425 132

163 104 3.3

15.3 1020 1740

0

23 36970 176

343 16.7

104

Berat sendiri lantai 1742.4

181.5

20

2047.9

2457.48

2457.48

9633.3216

2457.48

2457.48

1600

928

= = 0.93

=9633.322

1600

cm

2457.48

6880.944

Mmax s

Wx

kg/cm215.3 36970

kg/cm21740

553.64 1600 ..........................OK

t

=6880.944 1020

928

0.93 cm200000 36970

124.08 928 ..........................OK

5 x Wu x L^4 D

384 x E . Ix

cm2.8393E+12

=2457.48

0.42560

= 1.2084E+13 0.93

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Tinjauan Portal Tengah Profil baja INP 47.1/2

Diambil portal terpanjang, = 5.6 m = 560 cm

= 5.6 m = 560 cm

Panjang jalur pembebanan = 1/2.L1 + 1/2.L2 Tebal lantai = 10 cm = 0.1 m

= 1/2 x 5.6 + 1/2 x 5.6 Panjang bentang baja = 6.7 m = 670 cm

= 5.6 m

47.1/2h = mm A = cm2 Iy = cm4

b = mm G = kg/m' iy = cm

d = mm Sx = cm3 Wx = cm3

t = mm Ix = cm4 Wy = cm3

ht = mm ix = cm

Pembebanan (beban yang ditinjau hanya beban mati saja)

Beban Mati

- Berat sendiri baja INP 47.1/2 = kg/m

- 0.10 x 5.6 x 2400 = kg/m

- Adukan beton 30 x 5.6 = kg/m

- Berat bekisting 20 = kg/m

qdl = kg/m

Beban hidup = 0 kg/m x 5.6 =

Beban Total (Wu) = 1,2x 1660 + 1.6 x 0

= kg/m

Mutu Baja Bj 37

- Tegangan ijin (s) = kg/cm2

- Tegangan ijingeser (t) = 0.58 x (s) ijin= kg/cm2

- Lendutan ijin (D) = L 670600 600

Perhitungan Statika

- Wu = kg/m Wu = kg/m

- Mmax = 1/8 x Wu x L^2= 1/8x x 6.7 ^2

= kg.m 6.7 m

- Dmax = 1/2 x Wu x L

= 1/2x x 6.7

= kg

Kontrol Kekuatan dan Kekakuan

- Terhadap tegangan lentur (s)

s =

= kg/cm2

- Terhadap tegangan geser (t)

t = Dmax x Sxd x Ix

x

x

= kg/cm2

- Terhadap lendutan (D)

D =

5 x x 670 ^4

384 x x

= 1 12 cm ..........................OK

2090

bentang 1 (L1)

bentang 2 (L2)

Data Profil Baja INP475 163

178 128 3.6

17.1 1400 2380

0

25.6 56480 235

384 18.6

128.0

Berat sendiri lantai 1344.0

168.0

20.0

1660.0

1992

1992

11177.61

1992

1992

1600

928

= = 1.12

=11177.61

1600

cm

1992

6673.2

Mmax s

Wx

kg/cm217.1 56480

kg/cm22380

469.65 1600 ..........................OK

t

=6673.2 1400

928

1.12 cm200000 56480

96.73 928 ..........................OK

5 x Wu x L^4 D

384 x E . Ix

cm4.33766E+12

=1992

0 46270

=2.00705E+13

1.12

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