TY - JOUR
T1 - Seismic performance and flexural stiffness variation of assembled precast high-strength concrete beam jointed at mid-span using transverse bolts
AU - Ousalem, Hassane
AU - Ishikawa, Yuji
AU - Kimura, Hideki
AU - Kusaka, Tetsu
AU - Yanagisawa, Nobuyuki
AU - Okamoto, Keijiro
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2009
Y1 - 2009
N2 - Assembled precast members and related connections should be economically feasible, bring ease of construction, and provide acceptable static properties as well as adequate dynamic characteristics in high seismic zones. The seismic performance of an assembled precast high-strength concrete beam with a simple and innovative lap splice connection in high-rise buildings is discussed. The flexibility variation along the lap splice connection of the beam, which involves a reduced profile, is also investigated. The lap splice connection, located at beam mid-span, was connected by transverse untensioned bolts. The simplicity of the form and developed mechanism are intended to be suitable for construction sites. The experimental test results confirmed the adequacy of such assemblies to satisfy a safe level under different loadings. The beam under reversed cyclic loading proved to be ductile and failure occurred outside the lap splice connection similarly to monolithic ordinary reinforced concrete beams. The flexural stiffness varied along the lap splice connection of the assembled beam and declined at the transition section of the reduced profile under large loading. Therefore, this reduction, within design limits, would not affect the performance of the assembled beam.
AB - Assembled precast members and related connections should be economically feasible, bring ease of construction, and provide acceptable static properties as well as adequate dynamic characteristics in high seismic zones. The seismic performance of an assembled precast high-strength concrete beam with a simple and innovative lap splice connection in high-rise buildings is discussed. The flexibility variation along the lap splice connection of the beam, which involves a reduced profile, is also investigated. The lap splice connection, located at beam mid-span, was connected by transverse untensioned bolts. The simplicity of the form and developed mechanism are intended to be suitable for construction sites. The experimental test results confirmed the adequacy of such assemblies to satisfy a safe level under different loadings. The beam under reversed cyclic loading proved to be ductile and failure occurred outside the lap splice connection similarly to monolithic ordinary reinforced concrete beams. The flexural stiffness varied along the lap splice connection of the assembled beam and declined at the transition section of the reduced profile under large loading. Therefore, this reduction, within design limits, would not affect the performance of the assembled beam.
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U2 - 10.3151/jact.7.205
DO - 10.3151/jact.7.205
M3 - Article
AN - SCOPUS:79954466346
VL - 7
SP - 205
EP - 216
JO - Journal of Advanced Concrete Technology
JF - Journal of Advanced Concrete Technology
SN - 1346-8014
IS - 2
ER -