الفهرس 
IMPACT LOADS
CASE-STUDIES IN STRUCTURAL BUILDINGSOnly 14 pages are availabe for public view
 |  | from | 151 |  |  |
| | | from | 151 | | |
Abstract
After the attacks of 11th of September 2001 in the United States, the attention of the world was directed to study the behaviour of structures under impact loading, which can lead to failure of the structures in a very short time. Recently, numerous experimental and numerical investigations were conducted in the literature to study the behaviour of different reinforced concrete structural elements such as walls, columns, slabs, beams and other structural elements under impact loading. This thesis presents a three-dimensional (3-D) nonlinear finite element model to study the behaviour of reinforced concrete (RC) columns subjected to impact loading. The columns investigated were fixed-ended columns subjected to lateral impact loading resulting in bending moments and shearing forces. The finite element model was verified against previously published experimental investigations on fixed-ended columns having different impact loading and longitudinal reinforcement. The peak deflections, modes of failure, deflection-time relationships and reactions at supports were obtained. The verification of Analysis of reinforced concrete structures subjected to impact loads II the model has shown that the model represents the tests on the RC columns under impact loading accurately. The verified model was used to perform parametric studies to investigate the effect of the changing in shear reinforcement areas, longitudinal flexural reinforcement areas, compressive concrete strengths, column lengths and velocity of impact body on the behaviour of RC columns under impact loading. This thesis provides useful information regarding the behaviour of RC columns under lateral impact loading, which may be used to propose design guides for structural engineers and improve the design equations in current codes of practice.