Tests on Precast Concrete Frames with Connections Constructed Away from Column Faces

Abstract

A modified assembled configuration is introduced for precast
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\nconcrete frames in which the connections are constructed on the
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\nbeam span and kept away from the column faces so as to avoid
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\ncoinciding with the plastic hinge regions during seismic excitations.
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\nAn experimental study on the seismic performances of two fullscale
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\nprecast concrete subframes adopting the aforementioned
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\nconfiguration and a monolithically-cast subframe subjected to
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\nquasistatic simulated seismic loading is presented. The variable
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\nexamined was the connection detail. The performances of the
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\nprecast concrete frames are evaluated on the basis of ductility, energy
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\ndissipation capacity, connection strength, and drift capacity. Based
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\non the test results, the precast concrete frames are capable of
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\nmatching overall performance of the monolithic connections and
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\nthereby providing moment-resisting behavior.