Online ISSN: 2515-8260

Keywords : Deflection


R.Chitra, Dr. R.Venkata Krishnaiah,Prof.K.Vijaya Bhaskar Raju

European Journal of Molecular & Clinical Medicine, 2022, Volume 9, Issue 7, Pages 5638-5649

 In this paper an attempt was made to establish Non Destructive testing technique for the estimate of compressive strength of M25 grade of concrete using different types of fibers (Steel and Glass fibers). Beam-column joint connections are crucial in framed structures because they play a crucial role in the load-carrying moments of reinforced concrete structures.This paper presents two NDTs - Ultrasonic Pulse Velocity tool (PUNDIT) and Schmidt rebound hammer test done on beam column joints connections, in this paper is about evaluating the beam column joint connections in different fibers using NDT. Laboratory experiments and other test data from the literature were used to gather the data that was used to determine the values and test the model. To increase the joints' ability to resist forces, numerous researchers have studied joints utilizing various methodologies, materials, and healing approaches.According to the literature, steel and polypropylene fibers have improved a number of concrete's desired qualities. In our research paper a comparison study was made on polyprolene and steel fibers using Non destructive method.

Numerical Simulation Study On Load Deflection Of Reinforced Ultra High Performance Fiber Reinfoeced Concrete And Normal Concrete Beams Under Static Load

Anas Ammar Al- Kabasi; Ali Saif Al- Wardi; Qadir Bux alias Imran Latif; Nasrellah Hassan Ahmed

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 8, Pages 559-572

One of the biggest obstacles that prevents emerging concrete types to become widely adopted in construction is the deficiency of standardization background in practice codes for these materials, despite the fact it possess superior properties, such as Ultra-high Performance Fiber Reinforced Concrete (UHPFRC). In this study, Finite Element Analysis (FEA) is utilized to simulate the behavior of UHPFRC and Normal Concrete (NC) simply supported beams under static flexural loading. Abaqus software has been used in which a simplified version of the Concrete Damage Plasticity Model (CDPM) was chosen as a non-linear constitutive model. The model has been validated against conventional CDPM at global (load-deflection) and local (load-stain) levels. Reinforced UHPFRC beam models showed clearly matching response with the validity research paper (reference study) experimental findings. The response of UHPFRC beams has been compared to NC beams. This comparison has been explained in detail and checked with similar material comparisons in the literature. The proposed study has revealed and compared the distribution of cracks in the form of tension and compression damage for both materials. As a conclusion, modelling is an effective way to predict the behavior of concrete beams in which the relative local response was captured in reinforcement bars.