Lorenzo, Jesus N. creator Ueda, Tamon Chairperson Worsak Kanok-Nukulchai Examination Committee Pichai Nimityongskul Examination Committee DAAD (German Academic Exchange Service) text th Bangkok Asian Institute of Technology 1988 monographic eng

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151 p. Prestressed concrete beams were tested to investigate the mechanical behavior in shear with the scope of conducting a detailed experimental observation on the effects of varying levels of prestressing force on shear crack displacements and stirrup stress as well as the shear cracking behavior of the beams . The magnitudes of the crack opening and shear displacement were meticulously measured using contact gage points. Forces transferred along the diagonal cracks were determined applying the Li- Maekawa Model on Contact Density Function to the measured crack displacements. The crack opening and shear displacement ratio decreases for beams with higher applied prestressing forces, so that the stresses transferred by aggregate interlocking along shear crack surfaces were found to be greater with higher prestressing force while stirrup forces along the shear crack are smaller. Total forces transferred along the shear crack, which is the summation of forces transferred by aggregate interlocking and by the stirrup, were observed to be grater with higher prestressing force. A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 1988 Prestressed concrete beams Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B18640 http://203.159.5.9/ait-thesis/detail.php?q=B18640 290798 20260818095313.0