一、工程概况 新马桥公路桥工程为钢筋T型简支梁桥,桥长285m,分16跨布置,其中两主跨跨径24.4m,为预应力钢筋混凝土结构,其余14跨跨径为16.56m。16.56mT型预制梁共98片,T型内梁70片,其结构尺寸为16.56×2.18×1.3m,重23.23t;T型外梁28片,其结构尺寸为16.56×1.99×1.3m,重23.02t,桥面宽15m,桥墩净高为6.8m～8.6m不等。设计荷载汽-20,验算荷载挂-100。新马 First, the project profile Xinmaqiao highway bridge is a steel T-beam bridge, the bridge length 285m, 16 points across the layout, including two main span span 24.4m, prestressed concrete structure, the remaining span of 14 span 16.56m. A total of 98 prefabricated beams of 16.56mT type, 70 T-type inner beams, the structure size of 16.56 × 2.18 × 1.3m, weight 23.23t; T-shaped outer beam 28, the structure size of 16.56 × 1.99 × 1.3m, weight 23.02t, bridge width 15m, pier net height of 6.8m ~ 8.6m range. Design load steam -20, check the load hanging -100. New horse