Annex 2-Effective and Equivalent

ULATION OF EFFECTIVE WIDTH

Effective widths are calculated according to Eurocode 4, clause 5.4.2

Values of b0 are neglected.

Main beams - middle

Middle of the span:

���0.7*10�7m

bei�Le

8�7

8�0.875m

beff�b0�∑bei�2*0.875m�1

Main beams - edge

Middle of the span:

���0.7*10�7m

bei�Le

8�7

8�0.875m

beff�b0�∑bei�0.875�0.09�

Secondary beam (L=5 m)

���L�5m

bei�Le

8�5

8�0.625m

beff�b0�∑bei�2*0.625�1.25

CALAnnex 2 - CALCCULATION OF EFFECTIVE WIDTH

Effective widths are calculated according to Eurocode 4, clause 5.4.2

1.75m

On internal support:

���0.25�10�10��5m

bei�Le

8�5

8�0.625m

beff�b0�∑bei�2*0.625

�0.97m

On internal support:

���0.25�10�10��5m

bei�Le

8�5

8�0.625m

beff�b0�∑bei�0.625�

25m

Secondary beam (L=4 m)

���L�4m

bei�Le

8�4

8�0.5m

beff�b0�∑bei�2*0.5�1

Effective widths are calculated according to Eurocode 4, clause 5.4.2

m

625m�1.25m

m

�0.09m�0.72m

Secondary beam (L=4 m)

1m

Section IPE400 Ea 210

Aa 8446 [mm2] Ec,eff 16.5

Ia 2.31E+08 [mm4] n 12.72727

z= 290 [mm]

B 1750 [mm]

H 60 [mm]

Ac 105000 [mm2]

Ic 31500000 [mm4]

Ai= 16696 [mm2] Ai= 166.96 [cm2]

za= 143.2977959 [mm]

zc= 146.7022041 [mm]

Ii= 584740023.4 [mm4] Ii= 58474 [cm4]

EQUIVALENT CROSS SECTION PROPERTIES (MIDDLE BEAM)

According to EC4-1-1 (clause 5.4.2.2 (11)),

the effects of creep in composite beams are

taken into account by

using a nominal modular ratio n, obtained

with an effective modulus of elasticity

Concrete

Steel

with an effective modulus of elasticity

for concrete Ec,eff = Ecm/2. (Building is not

mainly intended for storage)

Section IPE400 Ea 210

Aa 8446 [mm2] Ec,eff 16.5

Ia 2.31E+08 [mm4] n 12.72727

z= 290 [mm]

B 970 [mm]

H 60 [mm]

Ac 58200 [mm2]

Ic 17460000 [mm4]

Ai= 13018.85714 [mm2] Ai= 130.1886 [cm2]

za= 101.862134 [mm]

zc= 188.137866 [mm]

Ii= 482146856.6 [mm4] Ii= 48214.69 [cm4]

EUQIVALENT CROSS SECTION PROPERTIES (EDGE BEAM)

According to EC4-1-1 (clause 5.4.2.2 (11)),

the effects of creep in composite beams are

taken into account by

using a nominal modular ratio n, obtained

with an effective modulus of elasticity

Concrete

Steel

with an effective modulus of elasticity

for concrete Ec,eff = Ecm/2. (Building is not

mainly intended for storage)