Struktur : KOLOM GEDUNG PERPUSTAKAAN Bagian : PenulanganPenanggung jawab: Taufiq Rochman, ST, MT Lembar : 1/2

Data - datafc' 25 Mpa e 515.464 mmfy 350 Mpa m 16.4706Mu 45,000 kgm ρ 0.01235

450 kNm cb 341.05 mm450,000,000 Nmm ab 289.895 mm

Pu 87,300 kg fs' 494.444 Mpa> 350873.0 kN fs' 350

873,000 N fs' = fy !β1 0.85ρb 0.032593985

Dimensi kolom/plat b 450 mmh 600 mmd' 60 mmd 540 mm

Asmax = 0.75 ρb.Aeq = 5,940 mm2

Asmin = 1.4 /fy .b.d = 972.00 mm2

+=

Coba As1 = 2000 mm2/mCoba As' = As2 = 50 % As1 1000 mm2/m

Astot = 3000 mm2/m

Cc = 0.85 fc' ab . b = 2,772,118 N

Cs = As'. fs' = 350,000 N

Ts = As. fy = 700,000 N

Pnb = Cc + Cs - Ts = 2,422,118 N

Mnb = Cc . (h/2-a/2)+Cs.(h/2-d')+Ts.(h/2-d') = 681,824,256 N

Σ M = 0

eb = = 281.50 mm

e>eb, hancur tarik

Pnb= (0.85 fc' ab.b + As'. fs' - As.fy) = 2,422,118 > 873,000 N

Persamaan Pn untuk kasus hancurnya baja di daerah tarik :

φPn = 1,082,750 N > 873,000 Npakai 11 D 19

DETAIL DESAIN PROYEK

Pada kolom Exterior no. 503 - Akibat Mz (Momen Dominan)

hancur tarik!

OK

h

b Ts1= As1.fy

Cc= 0.85 fc'.ab

a

d-a/2

Pnb

d-d'

eb

Cs= As'.fy

Ts2= As2.fy

h

b Ts1= As1.fy

Cc= 0.85 fc'.ab

a

d-a/2

Pnb

d-d'

eb

Cs= As'.fy

Ts2= As2.fy

′−+

−+

−=d

dm

d

eh

d

ehdbfcPn 1...2

2

.2

2

.2..'.85.0

2

ρ

h

b Ts1= As1.fy

Cc= 0.85 fc'.ab

a

d-a/2

Pnb

d-d'

eb

Cs= As'.fy

Ts2= As2.fy

h

b Ts1= As1.fy

Cc= 0.85 fc'.ab

a

d-a/2

Pnb

d-d'

eb

Cs= As'.fy

Ts2= As2.fy

′−+

−+

−=d

dm

d

eh

d

ehdbfcPn 1...2

2

.2

2

.2..'.85.0

2

ρ

Mu (kNm) Pu (kN) e1 450 800 563 fc' 35

2 320 1200 267 fy 4003 200 7000 29 b 4004 120 4000 30 h 5005 450 5000 90 φ = 1.006 200 1200 167

Koordinat (Mn, Pn) diagram interaksi As = As'= 2 D 25

Diagram Interaksi Mn-Pn

126

4

5

3

0

1000

2000

3000

4000

5000

6000

7000

8000

0 100 200 300 400 500 600

φ φ φ φ Mn (kNm)

φφ φφ P

n (k

N)

Hancur Tarik

Hancur Tekan

e=eb

Tekan Murni

Lentur Murni