TY - JOUR
ID - 30931
TI - Membrane Action in Orthotropically R.C. Rectangular Slabs Supported on Three Edges Only with Variable Axial Restraints
JO - Engineering and Technology Journal
JA - ETJ
LA - en
SN - 1681-6900
AU - M. Al-Hassani, Hisham
AU - Abdul Muneim Salman, Sura
AD -
Y1 - 2011
PY - 2011
VL - 29
IS - 6
SP - 1131
EP - 1144
DO - 10.30684/ etj.29.6.8
N2 - In this paper, large deformation analysis is carried out on uniformly loaded orthotropically reinforced concrete rectangular slabs that have one free edge and different restraints on the other edges. For the purpose of such analysis, the slabs are assumed to behave in a rigid-perfectly plastic manner and to yield under the combined effect of bending and membrane action. Two cases are analysed; the case of a slab having two adjacent edges fixed- one edge simply supported and one edge free, and the case of a slab having two adjacent edges simply supported- one edge fixed and one edge free. Results of the analysis indicate considerable enhancements in the load carrying capacity of such slabs above those predicted by Johanson's simple yield line theory(1).The amount of the load enhancement in a particular slab is found to depend on many parameters such as the steel ratio rx + , orthotropy ratio g, compressive strength of concrete fʹc , yield stress of steel fy , and the slab aspect ratio Ly/Lx, such that a higher enhancement in load is achieved for a slab having a higher value of fʹc but lower values of Ly/Lx , rx + , g and fy .
UR - https://etj.uotechnology.edu.iq/article_30931.html
L1 - https://etj.uotechnology.edu.iq/article_30931_92d90dbc3579cec0df620f4b90e0edb1.pdf
ER -