Flexural Strengthening of Prestressed Girders with Partially Damaged Strands Using Enhancement of Carbon Fiber Laminates by End Sheet Anchorages
نویسندگان
چکیده
This paper examines the impact of flexural strengthening on percentage damaged strands in internally unbonded tendons partially prestressed concrete beams (0, 14.28%, and 28.57%) recovering conditions using CFRP composite longitudinal laminates at soffit, end anchorage U-wrap sheets to restore original capacity mitigate delamination soffit Carbon Fiber Reinforced Polymer (CFRP) laminates. The composition anchors affected stress CFRP, failure mode, thus behavior beam. experimental results revealed that usage has a considerable strand strain, particularly when are employed. EB-CFRP increased by approximately 13%, which corresponds damage while 9.3%, 28.57% for members strengthened with only, around 21.58% 16.85% reinforced anchorings. Quasi-experimental equations have been proposed estimate actual untethered considering effect final fixation winding.
منابع مشابه
Flexural monitoring of carbon fiber/epoxy composite by acoustic emission
Carbon / epoxy composite is one of the most useful polymer matrix composites that has special properties such as high strength-to-weight ratio, high hardness, high corrosion resistance, Resistance to nuclear radiation has high consumption in different industries such as aerospace industry. Therefor monitoring of loading of this type of composite is important. In order to determine failure mecha...
متن کاملStrengthening of Corrosion-Damaged Reinforced Concrete Beams with Glass Fiber Reinforced Polymer Laminates
Problem statement: This study showed the results of an experimental investigation on the strengthening of corrosion damaged reinforced concrete beams with unidirectional cloth glass fiber reinforced polymer (UDCGFRP) laminates. Approach: All the beam specimens 150×250×3000 mm were cast and tested for the present investigation. One beam specimen was neither corroded nor strengthened to serve as ...
متن کاملFlexural Strengthening of Deficient Reinforced Concrete Beams with Post-Tensioned Carbon Composites using Finite Element Modelling
The application of external post-tensioned steel bars as an effective way to strengthen an existing bridge has been so far used in many different countries. In recent decades, however, they have been replaced by bars made from Carbon Fiber Reinforced Polymer (CFRP), as a material with high tensile strength and corrosion resistance, to address several concerns with steel bars such as their appli...
متن کاملCfrp Strands for Flexural Strengthening of Steel Bridges
This paper explores the use of Carbon fiber reinforced polymer (CFRP) material for strengthening of steel bridges. The research work includes an experimental program to study the effectiveness of using very small diameter CFRP strands, configured in a sheet format, for strengthening of steel structures. The experimental program includes scaled steel-concrete composite beams strengthened with th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Engineering, Technology & Applied Science Research
سال: 2022
ISSN: ['1792-8036', '2241-4487']
DOI: https://doi.org/10.48084/etasr.5007