EFFECT OF PRESTRESSED EXTERNAL TENDONS ON STEEL-CONCRETE COMPOSITE STEEL BEAMS
Volume Title: ICASGE2025
Paper ID : 1144-ICASGE-FULL (R1)
Authors
1Civil Engineering Department , Faculty of Engineering , Suez Canal University , Ismailia , Egypt
2Tanta
Abstract
External prestressed Tendons can be used in Steel-Concrete Composite beams to enhance the performance of beams by strengthening structure, raising ultimate moment resistance, and minimizing deflections. The Current study develops a Comprehensive study to analyze the behavior of simply supported Steel-Concrete Composite beams under positive bending moments using external tendons. Initially, an analytical model is discussed to determine beam strength.
Using Chen and Gu's technique, the final increase in tendon stress is predicted. Additionally, using Abaqus software, a numerical model is created that can accurately represent the behavior of prestressed composite beams. The generated results are compared to current experimental tests in order to validate the accuracy of this model. The influence of the following factors is then determined by a Comprehensive study: tendon and span lengths, initial prestressing force, Tendon position, and shape of Tendon. Additionally Studied, the impact of prestressing at the steel-concrete interface.
The analytical process is used to compare the ultimate moment results from the finite element models. The ultimate moment resistance in the composite beams was enhanced by all of the tendon configurations considered in the study, but some designs are more effective than others, increasing the resistance more and lowering the deflections and cracking in the concrete under service loads. Referring to the analytical process, it was discovered that the approach can accurately estimate Beams' strength Capacity.
Using Chen and Gu's technique, the final increase in tendon stress is predicted. Additionally, using Abaqus software, a numerical model is created that can accurately represent the behavior of prestressed composite beams. The generated results are compared to current experimental tests in order to validate the accuracy of this model. The influence of the following factors is then determined by a Comprehensive study: tendon and span lengths, initial prestressing force, Tendon position, and shape of Tendon. Additionally Studied, the impact of prestressing at the steel-concrete interface.
The analytical process is used to compare the ultimate moment results from the finite element models. The ultimate moment resistance in the composite beams was enhanced by all of the tendon configurations considered in the study, but some designs are more effective than others, increasing the resistance more and lowering the deflections and cracking in the concrete under service loads. Referring to the analytical process, it was discovered that the approach can accurately estimate Beams' strength Capacity.
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