旧桥中央分隔带处理中的T梁连接

T-beam Connection in Central Separate Belt Treatment of Old Bridges

连霍高速公路洛阳至三门峡段改扩建工程项目采用整体式路基单侧加宽方式.结合工程实际情况,选择了"上联下不联"的拼宽方式.针对旧桥中央分隔带的T梁连接,通过方案比较,采用切割旧梁翼缘,现浇连接的方案,并对现浇横梁采取了构造措施来加强连接.此方法可为类似工程设计提供参考.

The rebuilding project of the section from Luoyang to Sanmenxia of the highway from Lianyungang to Horgos adopted the mode of integrated roadbed widened unilaterally.Combining with actual circumstances,the splicing to widening mode of ＂the upper connected and the lower not＂ was chosen.For the T-beam connection of central separate belt of old bridges,the scheme of cutting flanges of old beams and cast-in-situ connection was adopted by comparing schemes,and the structural measures were taken to strengthen the connection of cast-in-situ beams.This method could provide a reference for the similar engineering.