TY  - BOOK
AU  - Ahmed Mostafa Elsaied Ali Ghanem
AU  - Adel Yahia Akl , 
TI  - Numerical analysis of the behavior of precast l-shaped beams / 
PY  - 2018///
CY  - Cairo : 
PB  - Ahmed Mostafa Elsaied Ali Ghanem , 
KW  - Fnite element
KW  - Nonlinear analysis
KW  - Skew bending failure
N1  - Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Civil Engineering; Issued also as CD
N2  - Precast spandrel L-shaped beams are commonly used in the perimeter of precast parking structures to transfer deck loads to vertical members. The unsymmetrical cross section of these beams which supports eccentric loads resulting in combined shear, torsion and flexure forces makes spandrel L-shaped beams one of the most critical elements in precast construction.These loading conditions forces the spandrel beams to significantly rotate about its weak axis. This lateral deflection increases as loads increase that may cause instability of the beam.Therefore, limiting this lateral deflection has become the subject of many studies for these types of beams. The main challenges facing L-shaped beams are shear and torsion distress in their end regions near supports where they experience a skew bending failure. The objective of this research is to study the behavior of these beams under combined loading conditions.Testing full scale spandrel beams with their large cross section was believed to be costly. Therefore, this research introduces a parametric study including 16 finite element models to investigate the effect of various factors believed to influence the behavior of these types of beams. Moreover, this research introduces new proposed special connections that reduce the rotation of spandrel L-shaped beams. Results of the parametric study are encouraging to reduce the lateral deflection of the spandrels to minimum
ER  -