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- W2805150561 abstract "Steel tubular column members have been widely adopted in constructionindustry due to its numerous advantages. However, the closed-section profilecharacteristics of tubular columns severely limit the connection possibilities. Weldingmethod is acceptable but discouraged because of on-site issues. Bolted connections arepreferable because of its simplicity, economical and easy assembly. A combination ofboth welding and bolting is the compromise between benefits and disadvantages.Therefore, a new bolted connection of open beam sections to tubular column thatconsists of welded angles and end plate, called reverse top-seat angle connection isproposed and investigated. This study focuses on experimental and numerical methodsof examining the behavior of reverse top-seat angle connection at ambient and elevatedtemperature. Three specimens were tested at ambient temperature with monotonicloading while four specimens were tested at elevated temperature according to ISO834heating curve under anisothermal conditions with static load. The results from tests inboth conditions provide the validation data for finite element models developed inABAQUS. Only half of the specimen is modelled and uses solid hexahedral brickelements. Contacts and pretension are included into the model for closer representationof the experimental tests while the temperatures are considered as static step in themodel. For ambient models, the validated model was used in parametric studies on thegeometrical details that may affect the connection behavior, including the anglethickness, plate thickness, leg length, stiffener and gauge length. Several parametershave been identified to provide a critical contribution to the connection behavior.Results from the elevated temperature tests show the difference in deformation of theconnection due to the effects of higher temperature and the boundary conditions forboth test conditions. In terms of connection performance under elevated temperatures, two configurations of the connections are discovered to remain ductile under thetemperature of 700C while the other two specimens developed earlier failures. Effectsof axial loadings, isothermal conditions and the effect of boundary conditions werestudied as the variation under elevated temperatures. The results have shown that theconnection is both practical and has comparable performance to other connection typesto tubular columns with flexible modification options. The connection can beconsidered for future studies, considering the various additional components that couldbe added to the connection to increase the performance accordingly." @default.
- W2805150561 created "2018-06-13" @default.
- W2805150561 creator A5068002087 @default.
- W2805150561 date "2017-09-02" @default.
- W2805150561 modified "2023-09-27" @default.
- W2805150561 title "Behavior of reverse top-seat angle connection at ambient and elevated temperatures / Leong Siong Hean" @default.
- W2805150561 hasPublicationYear "2017" @default.
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