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Cyclic Lateral Loading Test for Cast-In-Place Concrete-Filled Hollow PC Columns Using Permanent Inner form
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 Title & Authors
Cyclic Lateral Loading Test for Cast-In-Place Concrete-Filled Hollow PC Columns Using Permanent Inner form
Lee, Ho-Jun; Park, Hong-Gun; Kim, Chang-Soo; Hwang, Hyeon-Jong;
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 Abstract
Cast-in-place concrete-filled hollow PC (HPC) columns are used to reduce lifting load of heavy-weight PC columns and to improve the structural integrity of joints. In the present study, a new type of HPC column was proposed to improve the productivity and structural integrity of the concrete. To form the hollow PC columns, a permanent inner form was prefabricated using structural deck plates and penetrated lateral bars. Half-scale specimens of four HPC columns were tested under combined axial compression and lateral cyclic loading to evaluate the seismic resistance. In the design of test specimens, various parameters such as the spacing of lateral re-bars, the use of steel fiber, and the thickness of PC cover were considered. The test results showed that the proposed HPC columns generally exhibited satisfactory load-carrying capacity and deformation capacity without brittle failure of PC. If closely spaced hoops or fiber reinforcements are used for PC, the deformation capacity can be improved further by restraining PC spalling.
 Keywords
hollow PC column;mega column;deck plate;FRC;cyclic loading test;
 Language
Korean
 Cited by
 References
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