Moment modification factor of I-girder with trapezoidal-web-corrugations considering concentrated load height effects
- Authors
- Ngoc Duong Nguyen; Han, Seung-Ryong; Lee, Gyu-Sei; Kang, Young-Jong
- Issue Date
- 11월-2011
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Moment modification factor; End restraint conditions; Trapezoidal web corrugations; Load height effects; I-girder
- Citation
- JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, v.67, no.11, pp.1773 - 1787
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
- Volume
- 67
- Number
- 11
- Start Page
- 1773
- End Page
- 1787
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/111259
- DOI
- 10.1016/j.jcsr.2011.05.002
- ISSN
- 0143-974X
- Abstract
- Moment modification factors of the I-girder with trapezoidal web corrugations subjected to concentrated load, applied at different heights on the cross section and various end restraint conditions, are investigated. The moment modification factors are obtained by finite element buckling analyses. The new FEM program is developed by using beam elements and new general formulas of cross-section properties as well as a new warping constant of the l-girder with trapezoidal web corrugations. The theoretical results of moment modification factors are compared with commercial finite element software (ABAQUS) using shell elements. A series of finite element analyses with different corrugation profiles and lengths is performed. Through comparative numerical studies, the theoretical results are successfully verified. The moment modification factors from the SSRC Guide are compared with present FEM results. The new values of the variable C-b, the moment modification factor, in the SSRC Guide are proposed as the variable C-b,C-c to improve the accuracy of lateral torsional buckling strength. (C) 2011 Elsevier Ltd. All rights reserved.
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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