a) Non-Rigid end post

M pl,Rd  A f
fy
 M0
h  t f   35 * 500 * 355 * 2000  35  12207.6kNm
1.0
a) Non-Rigid end post
- Contribution from the web
Vbw ,Rd 
 w f yw h w t w
(EC3_1_5) 5.2(1)
3  M1
h w  1930mm ; a  1200mm ; f yw  355 N / mm 2 ; VEd ,A  2310kN
a 1200

 0.622  1 
h w 1930
k   4.00  5.34 h w / a   k s
2
(EC3_1_5) A.3(1)
k   4.00  5.34 * 1930 / 1200   0  17.81
2
 w  0.76
w 
f yw
 cr

hw
37.4 t w  k 
(EC3_1_5) 5.3(3)

1930
 1.67
37.4 * 9 * 0.814 * 17.81
(EC3_1_5) 5.3(3b)
for  w  1.08 and Non-Rigid end post
w 
0.83 0.83

 0.497
 w 1.67
Vbw ,Rd 
(EC3_1_5) 5.3(1) Table 5.1
0.497 * 355 *1930 * 9
 1769.7 kN
3 *1.0 *1000
- Contribution from flanges
Vbf ,Rd
b f t f2 f yf   M Ed
1 

c  M1   M f ,Rd





2




(EC3_1_5) 5.4(1)
1
Еврокод 3 - Проектирање на челични конструкции

1,6 b f t f2 f yf
c  a  0,25 

t h 2w f yw

2

  1200 0,25  1,6 * 500 * 35 * 355   335mm


9 *1930 2 * 355 


2
b f t f f yf 3   M Ed   500 * 35 2 * 355 * 3   260.6 *10 7
 
f 
1 
* 1 
ct w h w f yw   M f ,Rd   335 * 9 *1930 * 355   1220.8 *10 7



 v   w   f  0.497  0.174  0.671
Vb ,Rd   v h w t w
f yw
3 M 0
 0.671*1930 * 9 *



2

  0.174


355
 2388.9kN
3 *1.0
b) Rigid end post
- Contribution from the web
Vbw ,Rd 
 w f yw h w t w
(EC3_1_5) 5.2(1)
3  M1
h w  1930mm ; a  1200mm ; f yw  355 N / mm 2 ; VEd ,A  2310kN
a 1200

 0.622  1 
h w 1930
k   4.00  5.34 h w / a   k s
2
(EC3_1_5) A.3(1)
k   4.00  5.34 * 1930 / 1200   0  17.81
2
 w  0.76
w 
f yw
 cr

hw
37.4 t w  k 
(EC3_1_5) 5.3(3)

1930
 1.67
37.4 * 9 * 0.814 * 17.81
(EC3_1_5) 5.3(3b)
for  w  1.08 and Rigid end post
w 
2
1.37
1.37

 0.578
0.7   w 0.7  1.67
(EC3_1_5) 5.3(1) Table 5.1
Vbw ,Rd 
0.497 * 355 *1930 * 9
 1769.7 kN
3 *1.0 *1000
 v   w   f  0.578  0.174  0.752
Vb ,Rd   v h w t w
f yw
3 M 0
 0.752 *1930 * 9 *
355
 2677.2kN
3 *1.0
3

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