Page Comparison

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• The clear span-to-depth ratio of the beam is limited:

  • For SMF systems, 7 or greater.

  • For IMF systems, 5 or greater.

• The protected zone is determined:

  • For unstiffened extended end-plate connections: the portion of the beam between the face of the column and a distance equal to the depth of the beam or three times the width of the beam flange from the face of the column, whichever is less.

  • For stiffened extended end-plate connections: the portion of the beam between the face of the column and a distance equal to the location of the end of the stiffener plus one-half the depth of the beam or three times the width of the beam flange, whichever is less.

• The end plate should be connected to the flange of the column.

• Rolled-shape column depth is limited to W36 (W920) maximum. The depth of built-up wide-flange columns does not exceed that for rolled shapes.

End Plate Connections Design Steps

• The strength of the end plate moment connection is determined by the assumption that the tensile force of the bolts in one flange is controlled by the rupture limit state under compressive force.

• If there is no axial load on the joint, the total tensile and compressive forces are equal and opposite in both flanges, so that the total force creates a force pair.

• Flexural The flexural strength of end plate and column flange is determined by yield line analysis. The yield line method can be mechanism is calculated by the energy or virtual work method.

• Strong column, strong joint and weak beam are used to calculate the forces on the bolt and to find the required bolt strength. According to this assumption, while the column, panel region zones, and beam have inelastic behaviordeformation, the joint connection and column show have elastic behavior. For this reason, it is necessary to design a suitable thickness for the thick plate for end plate. In thick plate behavior, the force in the bolts is the static moment at the center of comprensive flange.

  • The equations used are as follows:

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Boundary Situations to Check

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