Static And Dynamic Behavior Of Reinforced Concrete Circular Arches
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Static and Dynamic Behavior of Reinforced Concrete Circular Arches
Author: Massachusetts Institute of Technology. School of engineering. Department of civil engineering
language: en
Publisher:
Release Date: 1963
STATIC AND DYNAMIC BEHAVIOR OF REINFORCED CONCRETE CIRCULAR ARCHES. PART 1
The experimental and analytical studies indicate that the approximate conventional theory based on limit analysis is quite adequate to predict the static ultimate loads of the underreinforced arches. The dynamic ultimate loads for compression mode loading can also be predicated by approximate theory provided that an appropriate dynamic increase factor (based on the increase in material properties) is used. However, it is not clear whether a satisfactory approximate theory can be developed to predict the ultimate dynamic load carrying capacity of the arch, subjected to a concentrated dynamic load at the crown or anti symmetric concentrated dynamic loads at quarter points. The experimental and analytical investigations also indicate that the natural periods of the arches have a significant influence on the dynamic load-carrying capacity of the arches in the cases of a concentrated load at the crown and antisymmetric concentrated loads at quarter points. The mode of failure under both static and dynamic loads is quite ductile in these cases as compared to the compression mode loading.