Welded Moment Frame Connections With Minimal Residual Stress 99

The purpose of this Steel TIPS is to address the problem of residual stress in welded moment
frame connections with heavy steel members. First, the authors extensively review the residual
stress problem. Second, they suggest a solution to the problem.
The Problem. Present design and welded construction practice produces residual stress by

• Joint and connection restraint.
• Member restraint resulting from two floor erection and welding sequence.

Residual stress results when restraint does not allow welds to shrink.
Suggested Connection. The suggested welded moment frame connection uses a design
concept that:

• Reduces residual stress in joints and connections to a minimum.

• Eliminates residual stress from member restraint.

• Locates the plastic hinge outside the connection.

ORGANIZATION
To accomplish the purpose, the authors present the subject matter of this Steel TIPS as follows:

• Terms used in the suggested solution and problem.

• The problem of residual stress.

• The suggested solution.

• Advantages and disadvantages of the suggested solution.

• A Conclusion.

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