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A platform for research: civil engineering, architecture and urbanism
Cyclic Testing of Bolted Steel Coupling Beams in Fast-Track Precast Concrete Construction
In this study, a new coupling beam system is developed that consists of a wide-flange steel coupling beam, embedded steel beams, top-seat angles, embedded nuts, and high-tension bolts. The developed coupling beam system was experimentally verified using reversed cyclic tests of six half-scale specimens. Two primary variables of the test program were the length of embedded steel section and the presence of top-seat angles. All the other design variables such as shear span-depth ratio, concrete strength, and reinforcing details were the same. Test results showed that a certain length of embedded steel beams would be needed to develop the nominal shear strength and corresponding deformation of the coupling beam and that the use of top-seat angles would help mimicking the behavior of monolithically cast coupling beams with a wide-flange steel beam. Additionally, a design equation for minimum embedment length of the steel section is derived that promotes the development of the nominal shear strength of a steel coupling beam.
Cyclic Testing of Bolted Steel Coupling Beams in Fast-Track Precast Concrete Construction
In this study, a new coupling beam system is developed that consists of a wide-flange steel coupling beam, embedded steel beams, top-seat angles, embedded nuts, and high-tension bolts. The developed coupling beam system was experimentally verified using reversed cyclic tests of six half-scale specimens. Two primary variables of the test program were the length of embedded steel section and the presence of top-seat angles. All the other design variables such as shear span-depth ratio, concrete strength, and reinforcing details were the same. Test results showed that a certain length of embedded steel beams would be needed to develop the nominal shear strength and corresponding deformation of the coupling beam and that the use of top-seat angles would help mimicking the behavior of monolithically cast coupling beams with a wide-flange steel beam. Additionally, a design equation for minimum embedment length of the steel section is derived that promotes the development of the nominal shear strength of a steel coupling beam.
Cyclic Testing of Bolted Steel Coupling Beams in Fast-Track Precast Concrete Construction
Lim, Woo-Young (author) / Kang, Thomas H.-K / Hong, Sung-Gul
ACI structural journal ; 113
2016
Article (Journal)
English
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