AI SearchEffects of prestressing force on mechanical behaviour in shear of prestressed concrete beams
Call Number: AIT Thesis no.ST-88-15 Material type:
TextSeries: Asian Institute of Technology. Thesis ; no. ST-88-15Publication details: Bangkok : Asian Institute of Technology, 1988Description: 151 pSubject(s): Online resources: Dissertation note: Thesis (M.Eng.) - Asian Institute of Technology, 1988 Summary: 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.
| Cover image | Item type | Current library | Home library | Collection | Shelving location | Call number | Materials specified | Vol info | URL | Copy number | Status | Notes | Date due | Barcode | Item holds | Item hold queue priority | Course reserves | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
22-AIT Thesis (Replacement)
|
Asian Institute of Technology Library AIT Publications | AIT Thesis no.ST-88-15 (Browse shelf(Opens below)) | 3 | Available | 30050120692610 | |||||||||||||
40-Archives
|
Asian Institute of Technology Library Archives | AIT Thesis no.ST-88-15 (Browse shelf(Opens below)) | 1 | Available | 30050160011465 |
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 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.
There are no comments on this title.