Sohag Engineering Journal最新文献_第3页

Bio-Water Management Mechanisms to Inspire New Building Solutions 生物水管理机制激发新的建筑解决方案

Sohag Engineering Journal Pub Date : 2022-12-15 DOI: 10.21608/sej.2022.174507.1024

Amal R. Tantawy

引用次数: 0

Camera-Based Navigation System for Blind and Visually Impaired People 基于摄像头的盲人和视障人士导航系统

Sohag Engineering Journal Pub Date : 2022-11-09 DOI: 10.21608/sej.2022.155927.1018

Mostafa Salah Abd-elhafeez

引用次数: 0

Internet of Things “IoT”: As a tool in Architecture for the Concept of Sustainability in Egypt 物联网：作为埃及可持续发展概念的建筑工具

Sohag Engineering Journal Pub Date : 2022-09-25 DOI: 10.21608/sej.2022.154729.1016

V. Ibrahim

引用次数: 0

Numerical Parametric Study of RC Beams Strengthened with Fabric-Reinforced Cementitious Matrix (FRCM) 纤维增强胶凝基质加固RC梁的数值参数研究

Sohag Engineering Journal Pub Date : 2022-09-15 DOI: 10.21608/sej.2022.154757.1017

Ahmed attia m. Drar, Mohamed Nagah, Ahmed Arafa, Yehia. A. Hassanean

引用次数: 0

Calibration and Validation of Microsimulation Models for Estimating Control Delay at Signalized Intersections in Upper Egypt, Sohag city as case study 上埃及Sohag市信号交叉口控制延迟估算微仿真模型的标定与验证

Sohag Engineering Journal Pub Date : 2022-08-24 DOI: 10.21608/sej.2022.157149.1020

A. Mandor, I. Hashim, Islam El-Dessoky, T. Abdel-Wahed

{"title":"Calibration and Validation of Microsimulation Models for Estimating Control Delay at Signalized Intersections in Upper Egypt, Sohag city as case study","authors":"A. Mandor, I. Hashim, Islam El-Dessoky, T. Abdel-Wahed","doi":"10.21608/sej.2022.157149.1020","DOIUrl":"https://doi.org/10.21608/sej.2022.157149.1020","url":null,"abstract":"Macroscopic traffic analysis software (SIDRA) and microscopic simulation package (VISSIM) are used in this paper to get the theoretical delay time. The paper presents a calibration process for the models developed in Sohag government using VISSIM software, since microscopic simulation models are becoming increasingly important tools in modeling transport systems. Traffic simulation models sometimes provide significant advantages over traditional planning or analytical models, such as SIDRA. Other common reasons for the popularity of simulation models include their attractive animations; their stochastic variability for the capture of real-world traffic conditions; and their capabilities to model complex roadway geometries, such as combined systems of urban streets and freeways. After calibration, validation work using field data from a signalized intersection in Sohag Governorate, Egypt, was conducted and proved the model validity to represent real systems. The simulation model was applied to evaluate the impact of lane width and traffic volume parameters on vehicular delays. The impact of each parameter was assessed and analyzed. It was found that there is a direct proportion between the control delay and the traffic volume parameter and inversely with the lane width parameter. Additionally, the problem of traffic jam at any intersection begins to occur when the traffic volume at 900 veh /h and above at different lane widths, especially at 9 ft resulting in higher delays.","PeriodicalId":34550,"journal":{"name":"Sohag Engineering Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48536607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CYCLICALLY LOADED GFRP RC MID-RISE WALLS: PARAMETRIC RESEARCH 循环加载GFRP rc中墙:参数化研究

Sohag Engineering Journal Pub Date : 2022-07-27 DOI: 10.21608/sej.2022.148445.1013

Ahmed attia m. Drar

{"title":"CYCLICALLY LOADED GFRP RC MID-RISE WALLS: PARAMETRIC RESEARCH","authors":"Ahmed attia m. Drar","doi":"10.21608/sej.2022.148445.1013","DOIUrl":"https://doi.org/10.21608/sej.2022.148445.1013","url":null,"abstract":"In this paper, nonlinear finite-element analysis (FEA) was handed to implement an in-depth examination on the behavior of concrete mid-rise walls reinforced with glass fiber reinforced polymer (GFRP) bars subjected to reversed cyclic loading while concurrently exposed to axial load. The FEA outcome was equated to the experimental outcomes of one GFRP-reinforced concrete mid-rise wall in-term of crack patterns, failure types and load–lateral displacement hysteretic response. A parametric research was then employed highlight the influence of longitudinal reinforcement ratio at wall boundary on diverse design features. It was displayed that the built model was steady and precisely simulated the experimentally stated behavior. The research also showed that while the boundary longitudinal reinforcement ratio had a remarkable effect on ultimate strength as well as the lateral stiffness, it slightly improved the energy dissipation capacity. Developing a technique with a noteworthy influence on energy dissipation that makes GFRP RC mid-rise walls competent to be used in strong seismic activity regions is indispensible. strength, drift capacity, stiffness, residual displacement as well as the energy dissipation capacity. Attending to this objective, two longitudinal reinforcement ratios were studied: 2.53% as well as 3.95%, along with the vertical web reinforcement ratio of 1.43% employed in GnoX. This was accomplished by substituting the vertical #3 GFRP bars with #4 in addition to #5 bars, in turn, whereas maintaining the unchanged horizontal web reinforcement ratio with the similar mechanical features. It should be distinguished that the reinforcement ratio was premeditated bearing in mind the boundary dimensions as 200mm × 200mm. For easiness of reference, the samplings were labeled as G3, G4, and G5, in that order.","PeriodicalId":34550,"journal":{"name":"Sohag Engineering Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43501843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Comparison of Daytime and Nighttime Operating Speed on Rural Multi- Lane Highway Sections in Egypt 埃及农村多车道公路路段白天和夜间行车速度的比较

Sohag Engineering Journal Pub Date : 2022-04-27 DOI: 10.21608/sej.2022.135873.1012

T. Abdel-Wahed, Mohamed El Esawey

{"title":"A Comparison of Daytime and Nighttime Operating Speed on Rural Multi- Lane Highway Sections in Egypt","authors":"T. Abdel-Wahed, Mohamed El Esawey","doi":"10.21608/sej.2022.135873.1012","DOIUrl":"https://doi.org/10.21608/sej.2022.135873.1012","url":null,"abstract":"Traditionally, the 85 th percentile of observed speeds is used to represent the operating speed associated with a specific site with certain geometric features. The presence of sunlight enhances the vision of drivers during daytime while visibility usually degrades during nighttime, especially on rural roads where no street lighting exists, and drivers would depend solely on their vehicle headlights. Visibility degradation is a safety concern which is magnified on horizontal curves. The objective of this study, therefore, is to compare operating speed in daytime and nighttime conditions on both tangent sections and horizontal curves. The analysis made use of spot speed data collected on horizontal curves of two major rural multilane highway in Egypt. Spot speed data were collected using speed guns during daytime and nighttime. The spot speed data were used to calculate the mean speed, variance of speed, and the 85th percentile speed. Analysis of Variance (ANOVA) was used to compare the speeds in daytime and nighttime. For most cases, it was shown that no significant difference existed in speed for daytime and nighttime. This was mainly attributed to the generous design features of the highway elements (e.g., large radii of horizontal curves, wide lanes, etc.). An attempt was made to develop operating speed models to see which variables impact speed during daytime. The results of operating speed models’ development were deemed inappropriate due to the lack of variability in speeds. © 2022 Published by Faculty of Engineering – Sohag University. DOI: 10.21608/SEJ.2022.135873.1012","PeriodicalId":34550,"journal":{"name":"Sohag Engineering Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48761988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Environmental Impact of Wastewater Inflow on Groundwater Quality, West Girga, Sohag, Egypt 污水流入对地下水水质的环境影响，西Girga, Sohag，埃及

Sohag Engineering Journal Pub Date : 2022-03-31 DOI: 10.21608/sej.2022.131048.1011

A. Masoud, A. A. Abdel Moneim, Mostafa Redwan

{"title":"Environmental Impact of Wastewater Inflow on Groundwater Quality, West Girga, Sohag, Egypt","authors":"A. Masoud, A. A. Abdel Moneim, Mostafa Redwan","doi":"10.21608/sej.2022.131048.1011","DOIUrl":"https://doi.org/10.21608/sej.2022.131048.1011","url":null,"abstract":"This research aims to determine the effects of wastewater irrigation on the groundwater quality west of Girga, Sohag, Egypt. Twenty-six groundwater and one sewage-treated effluent samples were analyzed using standard methods for a range of physio-chemical and microbiological parameters. Surrounding the wastewater plant, about 46% of collected samples were impacted by wastewater contamination, as indicated by positive detections of fecal coliform bacteria infiltrated into groundwater. The distribution of major ions in the groundwater is Na + >Ca 2+ >Mg 2+ >K + and Cl - >HCO 3- >SO 42- >NO 3- . The high salinity in the area may be due to the leaching of evaporites, chemical fertilizers, and irrigation return flow. The high sulfate concentration in the study area mainly from chemical fertilizers and wastewater. Cd, Pb, and Cu are enriched nearby the wastewater treatment plant suggesting contamination by wastewater disposal, while Fe, Mn, and Zn showed higher enrichment at the agricultural land, suggesting a mixing source from agrochemicals and atmospheric deposition of particles. Groundwater from the unconfined aquifer around the West Girga treatment plant is unsuitable for drinking purposes while suitable for irrigation with some restrictions in terms of heavy metals. To mitigate this, treatment of wastewater before irrigation and careful irrigation management is recommended.","PeriodicalId":34550,"journal":{"name":"Sohag Engineering Journal","volume":"100 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41271111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Enhancement of Polymer on Road Problematic Soil Stabilization 聚合物在道路问题土壤稳定中的增强作用

Sohag Engineering Journal Pub Date : 2022-03-17 DOI: 10.21608/sej.2022.126328.1010

T. Abdel-Wahed, Ahmed Akl Mahmoud

{"title":"Enhancement of Polymer on Road Problematic Soil Stabilization","authors":"T. Abdel-Wahed, Ahmed Akl Mahmoud","doi":"10.21608/sej.2022.126328.1010","DOIUrl":"https://doi.org/10.21608/sej.2022.126328.1010","url":null,"abstract":"Egypt's desert covers more than two-thirds of the country's entire surface area. As a result, in recent years, the Egyptian government has tended to exploit those spaces by constructing new cities, such as New Sohag. The city of New Sohag was founded in the western desert near the Nile River. Although, these new cities appear to be a cure for a variety of issues, including traffic congestion, population growth, the building of a new road network, and so on. However, most of the soil in these cities is problematic. This type of soils, which may pose engineering challenges when uncovered beneath pavements or foundations, have sparked worldwide interest in recent years. In this study, several ratios of novel polymer additives (Dust Shield) were introduced to the swelling soil of subgrade foundation at New Sohag city, which were employed as supporting pavements, with 1, 2 , 3, and 4 % by dry weight of soil. Increasing additives resulted in an increase in maximum dry density, California bearing ratio, and unconfined compressive strength, as well as a decrease in plasticity index and swelling pressure, according to the results of various tests. This research determined the best dosage amounts for each of the additives studied. Based on the findings, it can be inferred that Dust Shield may effectively improve the expanding soil.","PeriodicalId":34550,"journal":{"name":"Sohag Engineering Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49355051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Numerical Investigation of Flange Buckling Behavior of Steel Plate Girders with Corrugated Webs 波纹腹板梁翼缘屈曲性能数值研究

Sohag Engineering Journal Pub Date : 2022-03-06 DOI: 10.21608/sej.2022.120610.1009

A. Mohamed, Sedky Tohamy, A. Saddek, A. Drar

{"title":"Numerical Investigation of Flange Buckling Behavior of Steel Plate Girders with Corrugated Webs","authors":"A. Mohamed, Sedky Tohamy, A. Saddek, A. Drar","doi":"10.21608/sej.2022.120610.1009","DOIUrl":"https://doi.org/10.21608/sej.2022.120610.1009","url":null,"abstract":"Steel plate girders with trapezoidal corrugated webs have been used widely over the last years around the world in many roadways and railway steel bridges as they can introduce several important advantages compared with plate girders bridges with flat web. The study in this paper presents a numerical investigation of flange buckling behavior using the FE software ABAQUS and studies the effect of slenderness ratio of the flange and corrugated web on the bending moment capacity and the flexural behavior of trapezoidal corrugated web steel plate girders built-up from high-strength steel (HSSs). Firstly, the linear buckling analysis has been carried out to obtain the local flange buckling coefficient using the general equation of stresses and the stresses obtained from the numerical results, then the ultimate bending moment has been obtained from the nonlinear buckling analyses. The numerical results showed that the flange slenderness ratio and web slenderness ratio play a major role in controlling the bending moment capacity of corrugated web plate girders. Finally, some recommendations have been listed to help structural engineers to design corrugated web bridge girders efficiently. © 2022 Published by Faculty of Engineering – Sohag University. DOI: 10.21608/SEJ.2022.120610.1009","PeriodicalId":34550,"journal":{"name":"Sohag Engineering Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42273156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2