ahmed_arafa

Ahmed Noureldean Mohamed Arafa

مدرس - مدرس بقسم الهندسة المدنيه

كلية الهندسة

العنوان: سوهاج-ساقلته-شارع محمد فريد

3

إعجاب
8 2 0 11 5 5 213 128
86

أضيف حديثا
  • المقررات الدراسية 8
  • ملحقات المقررات الدراسية 2
  • واجبات المقررات الدراسية 0
  • المنشورات و المؤلفات 11
  • ساعات مكتبية 5
  • الاعلانات 5
  • عدد الملفات المرفوعه 7
  • كل التنزيلات 17

Evaluation of Flexural and Shear Stiffness of Concrete Squat Walls Reinforced with Glass-Fiber-Reinforced-Polymer (GFRP) Bars

2018 | الكلمات المفتاحية concrete squat walls, flexural and shear deformation, glass fiber-reinforced polymer, seismic resistance, stiffness,
Evaluation of Flexural and Shear Stiffness of Concrete Squat Walls Reinforced with Glass-Fiber-Reinforced-Polymer (GFRP) Bars
Estimating the flexural and shear stiffness of concrete squat walls reinforced with glass fiber-reinforced polymer (GFRP) bars is important to evaluate lateral displacement. To address this issue, five full-scale concrete squat walls, including four reinforced with GFRP bars and one reinforced with steel bars, were tested to failure under quasi-static reversed cyclic lateral loading. Decoupling flexural and shear deformations of ... إقراء المزيد

Experimental Behavior of GFRP-Reinforced Concrete Squat Walls Subjected to Simulated Earthquake Load

2018 | الكلمات المفتاحية Glass fiber, reinforced polymer (GFRP) bars, Reinforced Concrete, Squat walls, Hysteretic response, energy dissipation,
Experimental Behavior of GFRP-Reinforced Concrete Squat Walls Subjected to Simulated Earthquake Load
This study addressed the feasibility of reinforced-concrete squat walls totally reinforced with glass fiber-reinforced polymer (GFRP) bars achieving the strength and drift requirements specified in various codes. Using noncorrodible GFRP bars represents an effective method for overcoming deterioration due to corrosion problems. The previous experimental studies on GFRP-reinforced midrise shear walls showed that GFRP reinforcement can control shear deformation, which ... إقراء المزيد

Effect of web reinforcement on the seismic response of concrete squat walls reinforced with glass-FRP bars

2018 | الكلمات المفتاحية Concrete, Squat walls, Shear strength, Web reinforcement, Glass-fiber-reinforced polymer, GFRP bar, Seismic,
Effect of web reinforcement on the seismic response of concrete squat walls reinforced with glass-FRP bars
Six full-scale concrete squat walls reinforced with glass-fiber-reinforced-polymer (GFRP) bars were tested to failure under quasi-static reversed cyclic loading. Each test specimen measured 200 mm thick, 1500 mm long, and 2000 mm high. The test parameters were the configuration of web reinforcement (horizontal and/or vertical) and the horizontal web reinforcement ratio. The test specimens experienced different mode of failures as ... إقراء المزيد

Prediction of Flexural and Shear Strength of Concrete Squat Walls Reinforced with GFRP Bars

2018 | الكلمات المفتاحية concrete squat walls, Glass fiber–reinforced polymer, Concrete, Reinforced Concrete, Flexural and shear strength, Strain;, Prediction , Design codes,
Prediction of Flexural and Shear Strength of Concrete Squat Walls Reinforced with GFRP Bars
This paper presents an original study aimed at predicting the ultimate flexural and shear strengths of glass fiber–reinforced polymer (GFRP) RC squat walls subjected to quasi-static reversed cyclic lateral loading. Predicting the strength of GFRP-reinforced squat walls is critical for their safe design and acceptance of GFRP bar as reinforcement in such lateral-resisting structural elements. The test results of squat ... إقراء المزيد

ASSESSMENT OF STRENGTH, STIFFNESS, AND DEFORMATION CAPACITY OF CONCRETE SQUAT WALLS REINFORCED WITH GFRP BARS

2017 | الكلمات المفتاحية Squat walls, Concrete, GFRP bars, concrete squat walls, Seismic, Hysteretic response, sliding shear, residual displacement, Web reinforcement, flexural and shear deformation, stiffness,
ASSESSMENT OF STRENGTH, STIFFNESS, AND DEFORMATION CAPACITY OF CONCRETE SQUAT WALLS REINFORCED WITH GFRP BARS
The present study addressed the feasibility of reinforced-concrete squat walls totally reinforced with GFRP bars to attain reasonable strength and drift requirements as specified in different codes. Nine large-scale squat walls with aspect ratio (height to length ratio) of 1.33— one reinforced with steel bars (as reference specimen) and eight totally reinforced with GFRP bars—were constructed and tested to failure ... إقراء المزيد

Laboratory Testing of GFRP-RC Panels with UHPFRC Joints of the Nipigon River Cable-Stayed Bridge in Northwest Ontario, Canada

2016 | الكلمات المفتاحية Bridge panels, Joints, UHPFRC, Glass-fiber-reinforced polymer,
Laboratory Testing of GFRP-RC Panels with UHPFRC Joints of the Nipigon River Cable-Stayed Bridge in Northwest Ontario, Canada
This study investigates the behavior of ultrahigh-performance fiber-reinforced concrete (UHPFRC) joints between precast concrete panels reinforced with glass-fiber-reinforced polymer (GFRP) bars that are being used in the first cable-stayed bridge in northwest Ontario, Canada (Nipigon, Nipigon River Bridge). The test panels, which simulated the deck panels of the Nipigon River Bridge, were fabricated at the same precast facility in Ontario ... إقراء المزيد

“Behavior of GFRP-Reinforced Concrete Squat Walls under Simulated Earthquake Loading

2016 | الكلمات المفتاحية Squat walls, Concrete, GFRP, Shear distortion, Seismic,
“Behavior of GFRP-Reinforced Concrete Squat Walls under Simulated Earthquake Loading
Steel-reinforced squat walls are used as the main component for earthquake resistance in low-rise structures. Deterioration due to corrosion of steel reinforcement is one of the major challenges facing the construction industry. Furthermore, given the low aspect ratio of squat walls, their behavior is dominated by inelastic shear deformations activated by the yielding of flexural reinforcement. These deformations degrade strength ... إقراء المزيد

Experimental Investigation of GFRP-Reinforced Squat Wall Subjected to Lateral Load

2016 | الكلمات المفتاحية Squat walls, Concrete, GFRP, Shear distortion, Seismic,
Experimental Investigation of GFRP-Reinforced Squat Wall Subjected to Lateral Load
: Steel-reinforced squat walls are used as the main component for earthquake resistance in low-rise structures. Given the low aspect ratio of squat walls, their behavior is dominating by inelastic shear deformations activated by the yielding of flexural reinforcement. These deformations degrade strength and stiffness with subsequent shear failure, preventing the wall from achieving its flexural capacity, which is a ... إقراء المزيد

Flexural behavior of strengthened and repaired R.C. beams by using steel fiber concrete jacket under repeated load

2013 | الكلمات المفتاحية Strengthening and repairing, Fiber concrete jacket, High-strength concrete, mixed steel fiber, Repeated loading,
Flexural behavior of strengthened and repaired R.C. beams by using steel fiber concrete jacket under repeated load
Strengthening and repairing of reinforced concrete beams by using thin fibers concrete jacket have many advantages such as increasing of ultimate load, enhancement of serviceability limit state, resistance to fire and avoiding of corrosion problems that appear in steel plate jacket. The present work conducted to study the strengthening and repairing of reinforced concrete beams subjected to short time repeated ... إقراء المزيد

BEHAVIOR OF REPAIRED R.C. BEAMS BY USING STEEL FIBER CONCRETE JACKET AND SUBJECTED TO SHORT TIME REPEATED LOADING

2012 | الكلمات المفتاحية Fiber concrete jacket, High-strength concrete, mixed steel fiber, short time repeated loading,
BEHAVIOR OF REPAIRED R.C. BEAMS BY USING STEEL FIBER CONCRETE JACKET AND SUBJECTED TO SHORT TIME REPEATED LOADING
Repairing of reinforced concrete beams by using thin fibers concrete jacket have many advantages such as increasing of ultimate load, enhancement of serviceability limit state, resistance to fire and avoiding of corrosion problems that appear in steel plate jacket. This paper reports investigations conducted to study the repairing of reinforced concrete beams subjected to short time repeated loading by using ... إقراء المزيد