Laporan Perhitungan Reservoir Tower.pdf

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2016 RESERVOIR 30 CUBIC METER CAPACITY STRUCTURAL DESIGN SHEET

[PERHITUNGAN KONSTRUKSI BANGUNAN RESERVOIR] ------------------------------------------------------------------------------------------------------------------------------------------

PERHITUNGAN STRUKTUR ATAS

2

PERHITUNGAN STRUKTUR ATAS

Data Awal Profil Balok

:

WF 250.125.6.9

Profil Kolom Utama

:

WF 300.300.10.15

Profil Bresing Rangka

:

L.120.120.10

Mutu Baja

:

Fy 240 MPa, Fu 370 MPa

Klasifikasi Tanah

:

Tanah Keras ( N-SPT > 50 )

Klasifikasi Wilayah Gempa :

Wilayah 3

Beban Mati Berat Sendiri

:

Dihitung secara otomatis dalam SAP2000

Berat Finishing

:

-

Beban Hidup Pelat

:

2 kPa atau 200 kg/m2

Beban Hidup Tangga

:

3 kPa atau 300 kg/m2

Kombinasi Pembebanan

:

1,4 (D + F) 1,2 (D + F) + 1,6 L 1,2 (D + F) + 1,0 L + 1,0 Ex + 0,3 Ey 1,2 (D + F) + 1,0 L + 0,3 Ex + 1,0 Ey 0,9 (D + F) + 1,0 Ex + 0,3 Ey 0,9 (D + F) + 0,3 Ex + 1,0 Ey

Keterangan

:

D = Dead Load (Beban mati) L = Live Load (Beban hidup) F = Fluid Load (Beban air) Ex = Earthquake Load (Beban gempa) arah X Ey = Earthquake Load (Beban gempa) arah Y 3

3D VIEW (EXTRUDED)

4

SECTION - FRAME ELEVATION

5

SECTION - TOP PLAN VIEW

6

SECTION - STAIR PLAN VIEW

7

RESPONS SPECTRUM FUNCTION INPUT

LOAD COMBINATION INPUT

8

BENDING MOMENT DIAGRAM Load Combination 1,4(D+F)

9

SHEAR FORCE DIAGRAM Load Combination 1,4(D+F)

10

NORMAL FORCE DIAGRAM Load Combination 1,4(D+F)

11

DESIGN STRENGTH RATIO - FRAME ELEVATION

12

DESIGN STRENGTH RATIO - 3D VIEW

13

PERHITUNGAN SAMBUNGAN

Sambungan Balok WF250.125.6.9 ke Kolom WF300.300.10.15 Element Object : 3

Gaya yang terjadi sangat kecil,sehingga digunakan jumlah baut 8 buah Dia. 20 HTB A325

14

Sambungan Bresing L120.120.10 Element Object : 214

Pu = ~36000 N (Tekan) Digunakan High Tension Bolt diameter 16 mm dengan Fbu 825 MPa Digunakan Pelat Buhul 12 mm Fy 240 MPa dan Fu 370 MPa Kekuatan Tumpu 1 baut ф𝑅𝑛 = 0.75 2.4 16 12 370 = 127872 𝑁 Kekuatan Geser Baut 1 baut ф𝑅𝑛 = 0.75 0.5 825 1 0.25 βˆ— 3.14 βˆ— 162 = 62172 𝑁 Jumlah baut yang dibutuhkan 𝑛=

36000 = 0,58 π‘π‘Žπ‘’π‘‘ ~ 2 π‘π‘Žπ‘’π‘‘ 62172

Jadi, digunakan 2 baut HTB Dia. 16

15

PERHITUNGAN STRUKTUR BAWAH

16

PERHITUNGAN STRUKTUR BAWAH

Reaksi Perletakan ( Kombinasi LRFD 1,4D + 1,4F ) Kolom 1

:

Pu 166,09 kN

Kolom 2

:

Pu 168,01 kN

Kolom 3

:

Pu 187,27 kN

Kolom 4

:

Pu 192,72 kN +

Total

:

Pu 714,09 kN (LRFD) atau 510 kN (ASD)

Tebal Pondasi

:

500 mm

LxB

:

6000 mm x 5500 mm

f'c

:

25 MPa

fy

:

320 MPa

Bored Pile

:

Diameter 300 mm

Data awal

17

Pengecekan Kapasitas Pondasi terhadap Beban Kerja ( Allowable Stress Design / ASD )

Kapasitas Ijin Bored Pile 𝑃𝑖𝑗𝑖𝑛 = 5 βˆ— 220 π‘˜π‘ = 1100 π‘˜π‘ Kapasitas Ijin Pile-Cap π‘žπ‘–π‘—π‘–π‘› = 3

π‘˜π‘” = 0,3 π‘€π‘ƒπ‘Ž π‘π‘š2

𝑃𝑖𝑗𝑖𝑛 = 5500.6000.0,3 = 9,9. 106 𝑁 ~ 9900 π‘˜π‘ Kapasitas Ijin Total 𝑃𝑖𝑗𝑖𝑛 βˆ’π‘‘π‘œπ‘‘π‘Žπ‘™ = 1100 + 9900 = 11000 π‘˜π‘ > 510 π‘˜π‘. . 𝑂𝐾!

18

Pengecekan Kapasitas Lentur dan Geser Pile Cap terhadap Beban Kerja Terfaktor ( Metode Load and Resistance Factor Design / LRFD )

Diasumsikan Pile Cap dan Bored Pile menahan masing-masing 50% dari beban total = 0,5 x 714,09 = 357 kN 𝑀𝑒 = 0,25.

357 5

. 2 . 2,828 = 101,1 π‘˜π‘π‘š

Tebal pondasi = 500 mm d = 400 mm π‘˜=

𝑀𝑒 101,1. 106 = = 0,79 π‘€π‘ƒπ‘Ž ф𝑏𝑑 2 0,8.1000. 4002

0,85. 𝑓 β€² 𝑐 2. 1,58 𝜌= 1βˆ’ 1βˆ’ 𝑓𝑦 0,85. 𝑓′𝑐

=

0,85.25 2.0,79 1βˆ’ 1βˆ’ = 0,00252 > πœŒπ‘šπ‘–π‘› 320 0,85.25

19

πœŒπ‘šπ‘–π‘› =

1,4 = 0,00219 2. 320

𝐴𝑠 = 0,00252.1000.400 = 1008 π‘šπ‘š2 Jumlah = 1008 / (0,25*3,14*162) = 5 buah tiap 1 meter lebar pelat pile cap 𝑠=

1000 = 200 5

Digunakan D16 - 200

20

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