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Seismic Response of Flexibly-Connected Steel Frames

by P. Benson Sing, Univ of Colorado, United States,
Kurt H. Gerstle, Univ of Colorado, United States,
Harsoyo, Univ of Colorado, United States,



Document Type: Proceeding Paper

Part of: Building Code Requirements for Masonry Structures (ACI 530-88/ASCE 5-88) and Specifications for Masonry Structures (ACI 530.1-88/ASCE 6-88) (ACI 530.1-88/ASCE 6-88)

Abstract:

The response of typical low-rise steel building frames designed by the 'Type 2 Construction' method to moderate earthquakes is examined. Such frames are often identified by large girders, small columns, and semi-rigid connections. The simple methods underlying the Type 2 design approach do not permit realistic consideration of the frame response to either static or dynamic loads. In this paper, typical flexibly-connected Type 2 frames are analyzed for seismic resistance with the methods recommended by the 1988 Uniform Building Code. The results indicate that these Type 2 frames possess adequate strength, but may not have adequate lateral stiffness for moderate seismic loads.

Subject Headings: Steel frames | Steel structures | Seismic loads | Earthquake resistant structures | Seismic tests | Dynamic loads | Dynamic structural analysis

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