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End Plate Moment Connections for Cyclic Loads

by Keh-Chyuan Tsai, Univ of California, United States,
Egor P. Popov, Univ of California, 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:

Three pilot tests of full size end plate moment connections under cyclic loading are discussed. In one of the specimens, the premature fracture of one of the inner bolts suggests the possibility of uneven distributions of bolt force. The local plate rigidities at the inner and outer bolts are illustrated using finite element models. The subsequent specimens were modified with stronger bolts and stiffners. The improved performance of the modified specimens is demonstrated. Recommendations for the design of connecting bolts are provided. The paper concludes that well designed end plate connections are viable choices for severe seismic applications.

Subject Headings: Plates | Steel structures | Steel frames | Seismic design | Load tests | Finite element method | Bolts

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