Ugz
Welded
2,7
Bolted endplate
2,7
Bolted angle flange cleats
3,1
Base plate connections
2,7
(7) The basic components that should be taken into account when calculating the stiffness of a welded beamtocolumn connection and a bolted angle flange cleat are given in Table 6.9. Similarly, the basic components for a bolted endplate connection and a base plate are given in Table 6.10. In both of these tables the stiffness coefficients, X, ,for the basic components are defined in Table 6.11.
(8) For beamtocolumn end plate joints the following procedure should be used for obtaining the joint stiffness. The equivalent stiffness coefficient, keii, and the equivalent lever arm, zeii, of the connection should be obtained from 6.3.3. The stiffness of the joint should then be obtained from 6.3.1(4) based on the stiffness coefficients, keq (for the connection), kt (for the column web in shear), and with the lever arm, z, taken equal to the equivalent lever arm of the connection, zeii.
Table 6.9: Joints with welded connections or bolted angle flange cleat connections
Table 6.9: Joints with welded connections or bolted angle flange cleat connections
Beamtocolumn joint with welded connections 
Stiffness coefficients X, to be taken into account  
Singlesided 
Xi; X2; X3  
Doublesided  Moments equal and opposite 
X2; X3  
Doublesided  Moments unequal 
Xi; X2; X3  
Beamtocolumn joint with Bolted angle flange cleat connections 
Stiffness coefficients X, to be taken into account  
Singlesided 
Xi; X2; X3; X4; k6; X10; X11 *'; kn **  
Doublesided  Moments equal and opposite 
X2; X3; X6; Xio; Xn *'; **'  
Doublesided  Moments unequal 
Xi; X2; X3; Xi; XiQ; hi *'; Xi2 **'  

Post a comment