Seismic behavior of extended end plate moment connections considering construction imperfections
Publish place: 7th National Congress on Civil Engineering
Publish Year: 1392
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
NCCE07_1357
تاریخ نمایه سازی: 16 مهر 1392
Abstract:
Extended end plate moment connection is one of the most commonly used types of beam connections. Despite their ease of erection and economical advantage, typical defects can be observed in steel frames built with such connections which require comprehensive studies on the classification of errors and their impacts on the seismic behavior of structures.This paper evaluates effects of common construction imperfections on the seismic behavior of extended end plate moment connections. Some of these problems such as incomplete contact of end plates, widening of the bolt holes for erection purpose and inadequate fastening of the nuts are measured through field inspection. The corresponding amounts have been used in numerical modeling of the connection. Seismic behavior of the connection considering these defects was studied through nonlinear finite element analysis. Results show that such defects may cause a considerable reduction in stiffness and bending moment capacity of the joints which consequently increases the lateral drift of structure due to seismic load
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Authors
M. Fallah Moghaddam
M.Sc. Student, Dept. of Civil Engineering, University of Guilan, Rasht, Iran
J. Razzaghi
Associate Professor, Dept. of Civil Engineering, University of Guilan, Rasht, Iran
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