The Luokou Yellow River bridge located at Ji 'nan is an old steel bridge with 90 years history.
济南洛口黄河铁路大桥是一座有90年历史的老桥。
Based upon finite element simulation analysis, load tests and long-term observation, a detection and evaluation system for old steel bridge safety was developed in this thesis.
本文以桥梁仿真分析技术为主线，以整治效果为目标，以荷载试验和长期观测为检验手段，建立了既有钢桥裂纹安全检测评估系统。
The old Xinzha bridge in Shanghai City is a steel truss bridge, 64.
上海市老新闸桥为钢桁架桥，桥长64。
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