dc.contributor.authorKang, Shaobo
dc.contributor.authorTan, Kang Hai
dc.identifier.citationKang, S., & Tan, K. H. (2014). Experimental Study on Exterior Precast Concrete Frames under Column Removal Scenarios. 6 Th International Conference on Protection of Structures against Hazards.en_US
dc.description.abstractWith rigid boundary conditions, precast concrete beam-column subassemblages are capable of initiating significant compressive arch action (CAA) and catenary action under column removal scenarios. However, axial force in these bridging beams over the middle column removal may induce flexural or shear failure of adjacent side columns, which in turn hinders the full development of CAA and catenary action in beams. Thus, it is necessary to assess structural behaviour of precast concrete frames subject to column loss. This paper presents an experimental investigation on the resistance and failure mode of two precast frames. Each frame incorporates a middle beam-column joint, a double-bay beam, and two side columns. Specimens were loaded by a vertical servo-hydraulic actuator on the middle joint, and their reaction forces were recorded by a horizontal load cell on the top and a pin support at the bottom of each side column. Test results and observations indicate shear failure of the side beam-column joint, as well as bar fracture in the beam-column joint under CAA and catenary action. Conclusions from the frame tests suggest that the side columns have to be strengthened so as to protect them from potential failure under middle column removal scenarios.en_US
dc.format.extent9 p.en_US
dc.rights© CI Premier Pte Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by 6th International Conference on Protection of Structures against Hazards, CI Premier Pte Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document.en_US
dc.subjectprecast concrete framesen_US
dc.subjectcolumn removal scenariosen_US
dc.subjectcompressive arch actionen_US
dc.subjectcatenary actionen_US
dc.subjectcolumn failureen_US
dc.titleExperimental Study on Exterior Precast Concrete Frames under Column Removal Scenariosen_US
dc.typeConference Paper
dc.contributor.conference6th International Conference on Protection of Structures against Hazardsen_US
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.description.versionAccepted versionen_US

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