Nghiên cứu động lực học của dầm kép có vết nứt chịu tác dụng của tải trọng di động phục vụ cho việc giám sát kết cấu

1 ng lc hc ca dt nt chng ca ti trng phc v cho vit cu Dynamic analysis of a cracked double beam subjected to moving vehicle and its application for crack detection NXB H. : , 2014 59 tr. + n Anh i h Lu  thut; : 60520101 ng dn: TS. Nguyn Vit Khoa o v: 2014 Keywords: c k thut; ng lc hc; D; t cu Content Kt cu dt quan trng trong k thuc bi ng. Kt cu dc u t cu d v kt cu dm t nhiu hn chu c v h t [4], d [1]   [8, 9]u v ng bc ca hai tm m nht [4] kt vi nhau bi, chu ti tr b  c nghim giu kin ti tr u v h d [1],  mu dao ng t do ca h  n ti tri ti tr cu v ng ca h t vi nhau bi [8, 9], chu ti trng ng cng ca dm M. [10] ng dc trc ca h thng hai dm const vi nhau b gii h ng,   thit hai d cng gi ng nghip [3] ng bc ca h d  i gi thit hai d cng gi gii h  vy, u ch               do s    ging     .   ,   .                                                       .                   ,  ,              ,            . ,  u          h d  .                 hai d.                     b             .  2 c n  ng ca vt n ng ca h d   dng bi i   liu dang ca h dm nhn v t nt References [1] Z. 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