英语翻译Forces in all 72 cables of the Luling Bridge were measur

英语翻译
Forces in all 72 cables of the Luling Bridge were measured using a laser-based
technique.The measured cable forces were found to be below 35 percent of the
Minimum Ultimate Tensile Strength (MUTS).Judging from the relatively small
differences between measured and predicted forces and their distribution pattern,it is
unlikely that at this time,the stay cables have suffered any significant damage.Using
the finite element model of the bridge developed in this study,the source of the cable
force changes was studied.The analysis showed that the force changes could be
attributed to possible adjustments in the cable tension forces at the last stages of
construction for deck geometry compliance,or the effect of additional dead load.
These inferences were in agreement with the result of a deck profile survey conducted
by LADOTD.Cable damping measurements conducted by CTL indicate that most of
the cables of the Luling Bridge have very low damping and are vulnerable to rainwind
induced and other wind-induced vibrations.