Nghiên cứu tổng quan về các loại thanh FRP và tính ứng dụng của một số công thức đánh giá cường độ liên kết giữa thanh FRP – bê tông
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Từ khóa:
Thanh FRP
Cường độ liên kết
gia công bề mặt
công thức thực nghiệm
bộ dữ liệu thí nghiệm
Tóm tắt
Nghiên cứu trình bày tổng quan về các loại thanh cốt sợi tổng hợp (Fiber Reinforced Polymer, gọi tắt là thanh FRP), có cập nhật các công nghệ mới gần đây về vật liệu đầu vào và phương pháp gia công bề mặt. Bên cạnh đó, nghiên cứu cũng khảo sát tính ứng dụng của bảy công thức trong các quy chuẩn thiết kế và các nghiên cứu trước đây thông qua phân tích tính tương quan giữa giá trị tính toán với bộ dữ liệu gồm gần 800 mẫu thí nghiệm được thu thập. Kết quả chỉ ra rằng phần lớn các công thức không thể đánh giá cường độ liên kết giữa thanh FRP và bê tông trên phạm vi rộng của các thông số đầu vào, có cập nhật các dạng thanh FRP được phát triển trong thời gian gần đây. Do đó, cần xác định phạm vi sử dụng hợp lý của từng công thức khi tính toán cường độ liên kết giữa thanh FRP – bê tông trong thiết kế các kết cấu bê tông cốt FRP.
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Nguyễn Minh Hải, Đỗ Việt Hải, Phan Hoàng Nam, Phạm Văn Ngọc, Huỳnh Phương Nam, và Phạm Tiến Cường. “Nghiên cứu tổng Quan về các loại Thanh FRP Và tính ứng dụng của một số công thức đánh Giá cường độ Liên kết giữa Thanh FRP – Bê tông”. Tạp Chí Khoa học Và Công nghệ - Đại học Đà Nẵng, vol 21, số p.h 7, Tháng Bảy 2023, tr 27-36, https://jst-ud.vn/jst-ud/article/view/8456.
