Abstract:
Irregularity is an inevitable occurrence in RCC frame structures now a days. The effect of this irregularity can be devastating. It can cause failure of structure in case of earthquake and heavy wind load. Sudden changes in stiffness and strength or mass in either vertical or horizontal planes of a building can result in distributions of lateral loads and deformations different from those that are anticipated for uniform structures. Large overturning forces that developed in the structure had to be carried by the columns that contributed to severe damage in the column. This work presents an investigation on vertical irregularity of RCC frame structures. The software based analysis that is called ETABS 9.7.0 is done for obtaining the behavior of structures in such irregular cases. Then some analytical analysis is done for obtaining the variation of stiffness and overturning.
A total number of 5 different cases have been analyzed, where all the properties of each case is compared to other cases. After comparing all the results, a possible solution and further recommendation is proposed.
Description:
Supervised by
Dr. Md. Jahidul Islam
Assistant Professor
Department of Civil and Environmental Engineering (CEE)
Islamic University of Technology (IUT)
Board Bazar, Gazipur, Bangladesh
