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Chapter 1.0 Structural Calculation

PROJECT: *Name of Project* CN: 0000-i-000-R0v0 Date: 27-07-2011

§01 Checking of AISC 12 x 12 x 3/16

Parameters

s 12in 304.8 mm → shs profile side dimension

t3

16in 4.762 mm → thickness of profile

Is4

12

s 2 t 4

12 85778757.633 mm

4 → moment of inertia

Ss3

6

s 2 t 3

6 428768.17 mm

3 → elastic section modulus

Zs3

4

s 2 t 3

4 643152.255 mm

3 → plastic section modulus

 py 36ksi 248.211 MPa → steel yield strength

Section Classification

► BS595-1-2000 Steel work; Table 12

βwt

s

t64 → width to thickness ratio ► web; neutral axis

ε275 MPa

 py

1.053 → classificaiton parameter 

β1 64 ε 67.365 → Class 1; plastic

β2 80 ε 84.206 → Class 2; compact

β3 120 ε 126.31 → Class 3; semi compact

Sc βwt β1 β2 β3 "Plastic" βwt β1if 

"Compact" β1 βwt β2if 

"Semi Compact" β2 βwt β3 if 

Sc βwt β1 β2 β3 "Plastic"

γf  1.4 → load factor 

Mact γf  139 kN m 194.6 kN·m → actual bending moment

Mcap  py Z 159.638 kN·m → moment capacity

Mact

Mcap1.219 > 1.0, Therefore FAIL ■■

SE: J.A. FernandezAl Abbar Aluminium

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§02 Checking of AISC 10 x 10 x 3/16

Parameters

s 10in 254 mm → shs profile side dimension

t3

16in 4.762 mm → thickness of profile

Is4

12

s 2 t 4

12 49174780.741 mm

4 →moment of inertia

Ss3

6

s 2 t 3

6 295879.323 mm

3 → elastic section modulus

Zs3

4

s 2 t 3

4 443818.984 mm

3 → plastic section modulus

 py 36ksi 248.211 MPa → steel yield strength

Section Classification

► BS595-1-2000 Steel work; Table 12

βwt

s

t53.333 → width to thickness ratio ► web; neutral axis

ε275 MPa

 py

1.053 → classificaiton parameter 

β1 64 ε 67.365 → Class 1; plastic

β2 80 ε 84.206 → Class 2; compact

β3 120 ε 126.31 → Class 3; semi compact

Sc βwt β1 β2 β3 "Plastic" βwt β1if 

"Compact" β1 βwt β2if 

"Semi Compact" β2 βwt β3 if 

Sc βwt β1 β2 β3 "Plastic"

γf  1.4→ load factor 

Mact γf  103 kN m 144.2 kN·m → actual bending moment

Mcap  py Z 110.161 kN·m →moment capacity

Mact

Mcap

1.309 > 1.0, Therefore FAIL ■■

SE: J.A. FernandezAl Abbar Aluminium

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§03 Checking of 300mm x 6mm

Parameters

s 300mm → shs profile side dimension

t 6mm → thickness of profile

Is4

12

s 2 t 4

12 101691072 mm

4 →moment of inertia

Ss3

6

s 2 t 3

6 518688mm

3 → elastic section modulus

Zs3

4

s 2 t 3

4 778032mm

3 → plastic section modulus

 py 36ksi 248.211 MPa → steel yield strength

Section Classification

► BS595-1-2000 Steel work; Table 12

βwt

s

t50 → width to thickness ratio ► web; neutral axis

ε275 MPa

 py

1.053 → classificaiton parameter 

β1 64 ε 67.365 → Class 1; plastic

β2 80 ε 84.206 → Class 2; compact

β3 120 ε 126.31 → Class 3; semi compact

Sc βwt β1 β2 β3 "Plastic" βwt β1if 

"Compact" β1 βwt β2if 

"Semi Compact" β2 βwt β3 if 

Sc βwt β1 β2 β3 "Plastic"

γf 

1.4 → load factor 

Mact γf  139 kN m 194.6 kN·m → actual bending moment

Mcap  py Z 193.116 kN·m →moment capacity

Mact

Mcap

1.008 > 1.0, Therefore FAIL ■■

SE: J.A. FernandezAl Abbar Aluminium

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