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  • Structural Concrete, Vol. 10, no. 4, December 2009

Structural Concrete, Vol. 6, no. 2, June 2005

Experimental study of the shear strength of precast segmental beams with external prestressing

T. Wakasa, Structure Division, New Structural Engineering Ltd, Japan
H. Otsuka, Graduate School of Civil Engineering, Kyushu University, Japan
W. Yabuki, Graduate School of Civil Engineering, Kyushu University, Japan

In order to grasp the shear strength of a precast segment structure with external tendons, shear tests were carried out on nine different cantilever beams. The parameters were in situ concrete or precast segment, internal and external prestressing, and shear keys. This paper presents the results of these tests and proposes a new formulation to estimate the shear strength of a precast segment beam using external prestressing. 

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