Behavior of concrete beams reinforced with FRP during bending
نویسندگان
چکیده
Article describes methods and results of experimental research for strain behavior, crack formation fracture concrete beams reinforced with fiber polymer (FRP) bars during bending moment action. 18 (3+3 series) glass FRP (GFRP) basalt (BFRP) 6, 10 14 mm in diameter were tested. Deflection the middle beam, ultrasonic transmission time 4 routes measured tests besides visual inspection. Main occurred at 8-20% ultimate load all beams. Crack was transition border to linear (elastic) straining low stiffness. More than 15 times decrease stiffness seen beam two types 6 compared initial values. Existence main cracks major deflections is not allowed design elements. However small elastic a positive factor case «hard» loading impact (pulsed) loading. It possible prevent structures collapse people deaths cyclic by permitting bearing structures.
منابع مشابه
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ژورنال
عنوان ژورنال: E3S web of conferences
سال: 2021
ISSN: ['2555-0403', '2267-1242']
DOI: https://doi.org/10.1051/e3sconf/202126302052