Chao cac ban,khong biet cac ban nghi sao khi cac thay co cu khen lop hoc tot.Du thuc te cac ban hoc tren lop cung tot nhung bang diem lai k thuc te cho lam vi... Lieu cac ban co nen suy nghi lai khi thay co luon mieng khen lop ma den ki thi thi cac ban lai khong du tu tin de lam bai theo dung suc cua minh.Mong cac ban hay the hien dung kha nang cua minh,dung voi niem tin cua thay co,dung voi niem tu hao cua co giao chu nhiem va thuong hieu 30CCD5 nhe cac ban!

thay VU oi cho em hoi ve bai tap ket cau cong trinh ?

"khi em ve ban ve thiet ke cua bai tap ket cau cong trinh ,em thac mac la cac thanh bo tri o canh dam co phai la co phai la cac thanh cot dai ban canh khong ?,vay thi minh che tao cac thanh cot dai do la hinh khung co moc phai khong a ?"
cau hoi nua la:"o mat cat the hien thep cot chu va thep cot dai ,minh bo tri cot dai o ban canh dam theo kinh nghiem hay theo quy trinh quy pham hay theo cong thuc tinh cot dai ,hay minh chi bo tri cot dai o ban canh dam sao cho hop ly la duoc "
cau nua la: " co phai o canh dam co luc cat xien ban canh va tu do minh bo tri cot dai ban canh de chong lai luc cat xien do khong ? "