http://yetl.yabesh.ir/yetl1/handle/yetl/18995 Tue, 19 May 2026 11:38:59 GMT 2026-05-19T11:38:59Z http://localhost:80/yetl1/bitstream/id/453309/ http://yetl.yabesh.ir/yetl1/handle/yetl/18995 http://yetl.yabesh.ir/yetl1/handle/yetl/4310061 Conceptual Anchor Plate Perturbation Method to Determine Tension in Grouted Post-Tension Anchor Rods in Dams and Other Structures Christopher M. Abela; Eric Landis This study proposes a conceptual methodology to determine the axial load within a grouted post-tension anchor system via finite element analysis and calibration. The concept was built on the premise that a plate under axial load can develop a zone of fixity akin to a loaded free-free beam on an elastic foundation that develops nonzero subgrade reactions. The anchor plate, when perturbed, via moderate pulling on the edges, was found to deflect in a manner uniquely tied to the applied axial force. This study reviewed a range of axial loads to develop an empirical equation from the results of a nonlinear finite element model to create a force deflection plot for a plate of interest. The developed plot, to be useful for practitioners, was recommended to undergo a calibration exercise via a mockup of the actual anchor before being applied to in situ anchors to estimate post-tension force. Wed, 01 Jan 2025 00:00:00 GMT http://yetl.yabesh.ir/yetl1/handle/yetl/4310061 2025-01-01T00:00:00Z http://yetl.yabesh.ir/yetl1/handle/yetl/4310060 Essential Qualifications for Safety Personnel in the Indian Construction Industry: Delphi Approach Vigneshkumar Chellappa; Rita Yi Man Li; Ahmed Jalil Al-Bayati Safety remains a notable concern in the construction sector. Experts have highlighted how the presence of qualified safety personnel can play a crucial role in preventing and reducing severe injuries. However, in the Indian construction industry, there is a substantial lack of specific guidelines for selecting qualified construction safety personnel and the criteria employed to assess individuals for different safety positions. Therefore, this study aimed to reduce this gap by identifying the desired qualifications for safety personnel in Indian construction organizations. First, social platforms such as LinkedIn, Indeed, and Naukri were utilized to retrieve information on the necessary qualifications for safety personnel in the construction industry. This process covers four positions: junior safety officer, safety officer, safety engineer, and safety manager. Next, 13 construction experts participated in the Delphi survey, which consisted of two rounds, to determine the qualifications of the safety personnel. In the first round, the experts were asked to indicate the desired qualifications for each safety position identified from social platforms. Subsequently, in the second round, the same Delphi panel members were asked to indicate their level of agreement with the desired qualifications that had been identified. The findings from the Delphi survey, which highlighted the desired qualifications, such as experience, education, and certification for each safety position, were then validated through a questionnaire survey administered to 17 construction professionals. The study findings provide valuable guidelines for assessing and qualifying construction safety personnel within Indian construction organizations and will significantly contribute to establishing a safe construction workplace environment. Wed, 01 Jan 2025 00:00:00 GMT http://yetl.yabesh.ir/yetl1/handle/yetl/4310060 2025-01-01T00:00:00Z http://yetl.yabesh.ir/yetl1/handle/yetl/4310059 Enhancing Moment Capacity Prediction in FRP-Reinforced Concrete Beams through Soft Computing Models Reza Andasht Kazeroon; Nima Ezami; Seyed Mohammad Hossein Khatami; Atiye Farahani This article presents a comprehensive study employing artificial neural networks (ANNs) to forecast the moment capacity of fiber-reinforced polymer (FRP)-reinforced concrete beams. Using a data set of 116 data points from previous experiments by various researchers, six essential input parameters—beam width, beam overall depth, compressive strength of concrete, area of steel reinforcement at the bottom layer of the beam, and modulus of elasticity and ultimate strength of FRP—were integrated to predict moment capacity. The findings highlight the ANN model’s remarkable precision in forecasting moment capacity, emphasizing its high accuracy. The model analysis further reveals the relative importance of each input parameter, elucidating their significant roles in determining moment capacity. This research significantly advances the field of structural engineering by introducing a dependable and efficient method for predicting the moment capacity of concrete beams reinforced with FRP bars, thus greatly facilitating the design and assessment of such structures. The outcomes of this study offer valuable insights for engineers and researchers dedicated to improving the performance and safety of FRP-reinforced concrete beams in diverse structural applications. Wed, 01 Jan 2025 00:00:00 GMT http://yetl.yabesh.ir/yetl1/handle/yetl/4310059 2025-01-01T00:00:00Z http://yetl.yabesh.ir/yetl1/handle/yetl/4310058 Influence of Steel Fiber Characteristics on Mechanical Behavior of Roller-Compacted Concrete Pavement Peyman Paryad; Hosein Naderpour; Mohammad Kazem Sharbatdar Samples of roller-compacted concrete pavement (RCCP) were crafted using hooked-end steel fibers to explore the impact of the fiber aspect ratio (AR) and fiber volume fraction on the Vebe time (VBT), mechanical properties, and postpeak behavior of the RCCP. This study utilized hooked-end steel fibers with aspect ratios of 92, 70, and 50, across volume fractions of 0.25%, 0.5%, and 0.75%. Using the response surface methodology (RSM), the obtained results were analyzed and optimized. The study presented RSM models for VBT, compressive strength, flexural strength, and splitting tensile strength. Analysis of variance (ANOVA) highlighted the significance of these models. The study found that increasing both the fiber AR and content resulted in higher performance across the models examined. Notably, the fiber content had a more significant impact on the responses compared to the fiber AR. The mixture containing fibers with an AR of 92 and a content of 0.75% demonstrated the most favorable performance in mechanical responses, as well as in load deflection and toughness. Through RSM optimization, this specific mixture was identified as achieving maximized responses, considering the constraint of VBT (between 30 and 40 s). Wed, 01 Jan 2025 00:00:00 GMT http://yetl.yabesh.ir/yetl1/handle/yetl/4310058 2025-01-01T00:00:00Z