American Society of Civil Engineers

Design of Circular Base Plates

by Dajin Liu, (Sr. Struct. Engr., Parsons, 10 South Riverside Plaza, Ste. 400, Chicago, IL 60606)

Practice Periodical on Structural Design and Construction, Vol. 11, No. 1, February 2006, pp. 13-19, (doi:

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Document type: Journal Paper
Abstract: Circular base plates are commonly used for pipe columns, such as pylons in cable-stayed bridges, lighting poles, and electric power line posts. Although the explicit solutions for rectangular base plates can be found in many textbooks and AISC design procedures for base plates, a complete design procedure for circular base plates under different loading conditions has not been documented except for a large eccentric load. In this paper, a complete allowable stress design procedure is presented for circular base plates with axial loads, small eccentric loads, and moderate eccentric loads. Several design examples are shown for different loading conditions.

ASCE Subject Headings:
Axial loads
Eccentric loads