论文部分内容阅读
人们应该还会记得,2004年6月10日,辽宁省盘锦市境内305国道大辽河田庄台大桥挂孔垮塌;6月28日,江苏徐州一座改建大桥在剪彩前桥台一侧挡墙坍塌……连番事故震慑了公路桥梁界:我国病旧危桥的数量与日俱增,如不及时采取相应措施,大桥垮塌事故定会重演。十五期间,我国交通部每年拿出3个亿的资金用于危桥改造,但由于近几年来我国公路路网上的车流量迅猛增加、汽车装载量增大、超载现象严重,致使危桥数量居高不下。总的看来,1999～2003年的五年内,全国危桥的数量仍呈增长趋势(见表1)。
People should still remember that on June 10, 2004, the hanging hole of the Great Liaohe Tianzhuangtai Bridge on the State Road 305 in Panjin City, Liaoning Province collapsed. On June 28, a rebuilt bridge in Xuzhou, Jiangsu Province collapsed the retaining wall on the side of the bridge deck before ribbon-cutting. ... repeated accidents deterred the road bridge sector: the number of sick and old bridges in China is increasing, if not promptly take appropriate measures, the collapse of the bridge will be repeated. During the period of the Tenth Five-Year Plan period, the Ministry of Communications of the People’s Republic of China has taken 3 billion yuan each year for the reconstruction of dangerous bridges. However, due to the rapid increase of traffic flow on the road network in China in recent years, the load of automobiles has increased and the overloading phenomenon has become serious. As a result, High. In general, the number of dangerous bridges in the country still shows an increasing trend in the five years from 1999 to 2003 (Table 1).