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WUF-W 접합부의 액세스 홀 형상변수 타당성 평가를 위한 경험식 제안Empirical Equations for Checking Validity of Access Hole Parameters for WUF-W Connections

Other Titles
Empirical Equations for Checking Validity of Access Hole Parameters for WUF-W Connections
Authors
한상환윤용Y. Debbie Kim
Issue Date
Aug-2017
Publisher
한국강구조학회
Keywords
Connection; Access hole; Special moment frame; Finite element analysis; Empirical equation; Cyclic behavior; 접합부; 액세스 홀; 특수모멘트골조; 유한요소해석; 경험식; 이력거동
Citation
한국강구조학회 논문집, v.29, no.4, pp 303 - 310
Pages
8
Indexed
KCI
Journal Title
한국강구조학회 논문집
Volume
29
Number
4
Start Page
303
End Page
310
URI
https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/151838
DOI
10.7781/kjoss.2017.29.4.303
ISSN
1226-363X
2287-4054
Abstract
WUF-W 접합부는 부재의 접합이 모두 용접으로 이루어진 접합부이며, 특수모멘트골조(SMF) 인증접합부 중 하나이다. 하지만 선행연구들을 통해 일부 WUF-W 접합부 실험체가 4% 층간변위비의 특수모멘트골조(SMF) 요구성능을 만족하지 못하였으며, 이는 액세스 홀 형상과 연관이 있음이 보고되었다. 본 연구에서는 비선형 유한요소 해석을 이용하여 WUF-W 접합부의 요구성능을 만족하기 위한 주요 액세스홀 형상변수의 허용범위를 결정하였다. 또한 WUF-W 접합부 설계과정에서 주요 액세스 홀 형상변수의 타당성을 평가할 수 있는 간단한 경험식을 제안하였다
The welded unreinforced flange-welded web(WUF-W) connection is an all-welded moment connection, which is qualified for special moment frame(SMF) connections. However, previous studies reported that some WUF-W connections did not meet the drift requirement specified for SMF connections and such unexpected connection performance was resulted from weld access hole geometry. The objective of this study is to determine the permissible ranges of major access hole parameters such as access hole slope and the length of flat portion that lead to the satisfactory performance of WUF-W connections using Nonlinear finite element analyses are conducted. This study also proposes simple empirical equations to check the validity of access hole parameters to be selected in design process.
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