摘要
某桥建于上世纪七十年代,上部结构为工字形微弯板组合梁桥,设计荷载为汽车-13级,拖-60。由于在超过设计荷载等级的车辆活载长期作用下,主梁、微弯板出现了严重病害,部分微弯板出现塌陷,给行车安全带来极大的隐患。通过体系转换加固,提高了结构的承载能力,达到了加固目的。
The bridge was built in 1970s. Its upper structure is an H -shaped micro -bending plate composite girder bridge, with the design load of Grade 13 for automobile and Grade 60 for trailer. Under the long - term effect of exceeding live load of vehicle with design load grade, the main girder and micro - bending plate have serious damages and part of micro - bending plate has excessive penetration, so large bidden dangers will be brought for traffic safety. Through system transformation and reinforcement, the carrying capacity of the structure is enhanced and the goal of reinforcement is achieved.
出处
《北方交通》
2015年第10期16-18,23,共4页
Northern Communications
关键词
工字组合梁
体系转换
桥梁加固
H -shaped composite girder
System transformation
Bridge reinforcement
