Abstract
The current research work summarizes some previous research works on horizontally curved beams. Because of curvature, torsional effects in the analysis and design should be included. Diameter of ring beam, number of supports, beam width, compressive strength of the concrete, and bearing plate width. Which can be summarized from previous studies is that increasing diameter of ring by about 25-75% decreases the capacity load by about 14-36%, while increasing number of supports by about 33-100%, beam width by about 25-75%, compressive strength of concrete by about 24-76%, and bearing plate width by about 25-75% increases the capacity load by about 62-189%, 25-75%, 24-76%, and 5-16%, respectively due to the beam section increase and/or its properties. Frequently, reinforced concrete deep ring beams exhibit shear failure in a manner similar to straight beams. Strut and tie model (STM) and plastic analysis are useful tools for efficiently analyzing ring or curved deep beams. In addition, the nonlinear three-dimensional finite element modeling is typical for predicting the deep curved beams strength and behavior.
Highlights
The beam section center does not coincide with the total beam center in a horizontally curved beam
Torsional moments occur in a ring beam because the reactions and applied loads do not lie at the ring beam's main axis [1]
Reinforcement is a major feature in the ring and curved beams improvement – for easier constructing, RC is frequently used for deep curved ring beam members
Summary
The beam section center does not coincide with the total beam center in a horizontally curved beam. The STM approach assumes a truss that contains compression members (struts) that are linked to tensile members (ties) in specific points (nodes) [16,17,18,19,20,21,22,23,24,25,26,27,28,29]. Plastic analysis is another key method where ultimate capacity load and plastic hinge are considered as foremost considerations of design. The most significant of the few available investigations will be briefly said here
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