2_EC3-1-8
description
Transcript of 2_EC3-1-8
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Edit by Simone Caffè and Emanuela Fantin – 01 Ottobre 2010
13/17
EC.3 – 1/8
Summary of the resistance of the bolt row considered individually:
∑ �3�,� ,� � 282.30 � 278.18 � 560.48 /0 � �3�,� ,+9����+ � 536.38 /0
∑ �3�,� ,� � 278.18 � 278.18 � 556.36 /0 � �3�,� ,�9DD��� � 532.27 /0
∑ �3�,� ,� � 282.30 � 278.18 � 278.18 � 838.66 /0 � �3�,� ,+9�9DD��+ � 790.5 /0
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Edit by Simone Caffè and Emanuela Fantin – 01 Ottobre 2010
14/17
EC.3 – 1/8
Beam web in compression - §6.2.6.7 EC3 – 1 – 8 :2005
�� � ∑ � ·¡ � � �--·+6·BED,B·+6·�+6E-.)·D,B��--·+6ED,B·+6 � 136.84 ��
~V,R�,NO � �L� · e¢�L � ��R � £¤f · RSYZP � \� · �X^a � \� � \X�. a`� · ]^_\.PP � \\X\ bc
Beam web in tension - §6.2.6.8 EC3 – 1 – 8 :2005
~�,L�,NO � ��RR,�,L� · �L� · RSYZP
The effective width of the beam web in tension should be taken as equal to the effective length of the
equivalent T-stub representing the end plate in bending, obtained for an individual bolt row or a bolt group.
�3, 1,� ,+ � �d,3, 1 · 1 · $%&' � 172.25 · 16 · �,)+.-- � 757.9 /0
�3, 1,� ,� � �d,3, 1 · 1 · $%&' � 164.63 · 16 · �,)+.-- � 724.4 /0
�3, 1,� ,D � �d,3, 1 · 1 · $%&' � 164.63 · 16 · �,)+.-- � 724.4 /0
�3, 1,� ,+9� � �d,3, 1 · 1 · $%&' � 292.25 · 16 · �,)+.-- � 1286 /0
�3, 1,� ,�9D � �d,3, 1 · 1 · $%&' � 284.63 · 16 · �,)+.-- � 1252.4 /0
�3, 1,� ,+9�9D � �d,3, 1 · 1 · $%&' � 412.25 · 16 · �,)+.-- � 1814 /0
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Edit by Simone Caffè and Emanuela Fantin – 01 Ottobre 2010
15/17
EC.3 – 1/8
ASSEMBLY OF THE COMPONENTS - §6.2.7.2 EC3 – 1 – 8 :2005
§6.2.7.2 – (6)
1. First bolt row considered as an individual bolt - row :
- The column web in tension: �3, �,� � 177.50 /0
- The column flange in bending: ~�,RV,NO � \]`. ^` bc
- The end plate in bending: �3,d�,� � 282.30 /0
- The beam web in tension: �3, 1,� � 757.9 /0
2. Second bolt row considered as an individual bolt - row:
- The column web in tension: F¦,§¨,©ª � 177.50 kN
- The column flange in bending: ~�,RV,NO � \]\. _a bc
- The end plate in bending: F¦,®,©ª � 278.18 kN
- The beam web in tension: F¦,§¯,©ª � 724.4 kN
3. Third bolt row considered as an individual bolt - row :
- The column web in tension: F¦,§¨,©ª � 177.50 kN
- The column flange in bending: F¦,°¨,©ª � \]`. ^` ±²
- The end plate in bending: F¦,®,©ª � 278.18 kN
- The beam web in tension: F¦,§¯,©ª � 724.4 kN
§6.2.7.2 – (7)
4. Total design resistance: ∑ �3,� ,� � 124.74 � 121.58 � 124.74 � 371.06 /0 � ³:",@A´ � +7B.�+ � 198.2 /0D��+
Then: ~�,NO,\ � \]`. ^` bc ~�,NO,] � ³:",@A´ � �3,� ,+ � 198.2 � 124.74 � ^X. `� bc ~�,NO,X � P bc
5. Total design resistance: ∑ �3,� ,� � 124.74 � 121.58 � 124.74 � 371.06 /0 � ��, �,� � 206.53 /0D��+
Then: �3,� ,+ � 124.74 /0 �3,� ,� � ��, �,� � �3,� ,+ � 206.53 � 124.74 � 81.79 /0 � 73.46 /0 �3,� ,D � 0 /0
§6.2.7.2 – (8) row considered as a part of a group:
∑ �3�,� ,� � 124.74 � 73.46 � 198.2 /0 { �3�,� ,+9����+ � 213.84 /0
∑ �3�,� ,� � 73.46 � 0 � 73.46 /0 { �3�,� ,�9DD��� � 213.84 /0
∑ �3�,� ,� � 124.74 � 73.46 � 0 � 198.2 /0 { �3�,� ,+9�9DD��+ � 306 /0
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Edit by Simone Caffè and Emanuela Fantin – 01 Ottobre 2010
16/17
EC.3 – 1/8
JOINT MOMENT RESISTANCE - §6.2.7.2 (1) EC3 – 1 – 8 :2005
Design moment resistance:
Zµ,NO � ~��,NO,\ · ¢\ � ~��,NO,] · ¢] � \]`. ^` · P. XPQ_ � ^X. `� · P. \aQ_ � _]. _X bc�
124.74 kN
73.46 kN
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Edit by Simone Caffè and Emanuela Fantin – 01 Ottobre 2010
17/17
EC.3 – 1/8
JOINT SHEAR RESISTANCE - EC3 – 1 – 8 :2005
a. Resistance of on bolt - row:
��,� � -.)·�;·�k%&5 � -.)·�()·+---+.�) � 98 /0
KNO,\ � ��,�¶L · ~U,NO � ] · Qa � \Q� bc
b. Bearing resistance of the column flange of one bolt - row: � � �FG · �rD· ' � +( ; 1¸ � �FG · +�-D·�� � +( ; 1¸ � 1.00
/ � �FG ·2.8 · d5 ' � 1.7; 2.5¸ � �FG ·2.8 · D)�� � 1.7; 2.5¸ � 2.50
�1,� � ¹·º·342· ·�%&5 � +.--·�.)-·7·�-·(D-+.�) � 154.8 /0
KNO,] � ��,�¶L · ~�,NO � ] · \_`. a � XPQ. � bc
The shear joint resistance is due to the resistance of the bolts, but the resistance of the single bolt row
should be reduced, as follow, in presence of shear and tensile force:
- Shear resistance of the first bolt row: » �3�,� ,+ � 124.74 /0K��,NO,\ � -.(+.( · =� ,+ � _� bc� - Shear resistance of the first bolt row: » �3�,� ,� � 73.46 /0K��,NO,] � -.(+.( · =� ,+ � _� bc� - Shear resistance of the first bolt row: ¼ �3�,� ,D � 0 /0K��,NO,X � =� ,+ � \Q� bc�
Joint Shear Resistance:
Kµ,NO � ] · _� � \Q� � XPa bc
196 kN
196 kN
196 kN
56 kN
56 kN
196 kN