To the literature reports [1], many bridges are suffering efficiency degradation caused by the corrosion of the external steel strands. As an illustration, the Bickton Meadows Bridge and two other post-tensioned bridges inside the United kingdom collapsed as a result of corrosion in prestressing tendons [4]. Severe corrosion in prestressing tendons hasPublisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations.Copyright: 2021 by the authors. Licensee MDPI, Basel, Switzerland. This short article is definitely an open access report distributed beneath the terms and situations on the Inventive Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ four.0/).Appl. Sci. 2021, 11, 9189. https://doi.org/10.3390/apphttps://www.mdpi.com/journal/applsciAppl. Sci. 2021, 11,2 ofalso been detected in bridges within the United states of america [5]. Due to the corrosion-free house and higher tensile strength, this dilemma can be solved by utilizing fiber-reinforced polymer (FRP) tendons as an ideal alternative to steel strands with acceptable collision and fire protection [6]. Even so, the mechanical behavior of FRP is linear elastic up to failure, plus the ductility on the beams mostly dependent on the compression plasticity of concrete, which lead to the brittle failure of FRP prestressed concrete members [9]. The low ductility is amongst the vital drawbacks limiting the widespread application of FRP-reinforced typical strength concrete structures. Thus, based on the significantly greater strength and ultimate compressive strain of UHPC, the combined use of UHPC and FRP reinforcements is thought of to be an efficient method to enhance the ductility with the beams. A variety of research reported around the structural overall performance of UHPC beams, and these studies mainly discussed the effect of fiber properties (i.e., fiber kind, geometry, orientation and so on.), fiber Tiaprofenic acid site content material and curing situations on flexural behavior [105]. These studies show that the high strength of UHPC enhanced the flexural capacity of beams. The presence of steel fibers considerably enhanced the postcracking stiffness and cracking response. In certain, a higher fiber volume content could lead to a higher flexural capacity, and a rise inside the length of steel fibers as well as the use of twisted steel fibers could improve the postcracking response and ductility. The room temperature cured beams showed better ductility than the hot-cured beams. Further, several researchers created analytical procedures to calculate the flexural capacity of UHPC beams. Shafieifar et al. [16] compared the accuracy of current equations in distinct design and style recommendations for predicting the flexural capacity of UHPC beams. The outcomes indicated that American Concrete Institute (ACI) 318 [17] approach for normal strength concrete tended to underestimate the ultimate capacity of UHPC beams. By contrast, ACI 544 [18] and Federal Highway Administration (FHWA) HIF-1 [19] solutions could predict the ultimate capacity with an acceptable accuracy. Furthermore, distinctive varieties of FRP were investigated as prestressed tendons in previous research [207]. For example, Ghallab and Beeby [25] evaluated several design and style parameters could have effect on the ultimate stress in external steel tendons and aramid FRP (AFRP) tendons. The test results recommended that the non-prestressed reinforcement ratio and span to depth ratio slightly effected the ultimate anxiety of AFRP tendons, whereas the effective prestressi.
