连续拱形梁桥的探索

在江南水乡地域布置连拱桥结构,由于地质条件较差,下部结构设计难度较大。为了既取得景观效果,又使得技术难度小,无锡市长广溪桥与南通长岸路十里坊大桥均采用了连续拱形梁结构。与一般连续梁桥相比,该桥型适合作为入口标志性建筑与城市文化的载体,但结构受力复杂,造价高。

Exploratory Research of Continuous Arched Beam Bridges

The design of substructures of the multi-arch bridges in the waterfront region south of the lower reaches of the Changjiang River is often technically challenging owing to the poor geologic conditions there.To achieve better landscape effect and also minimize the technical difficulties,the continuous arched beam structures have been applied to the Changguang Creek Bridge,Wuxi City and Shilifang Bridge at Chang'an Road,Nantong City in the waterfront region.Compared to the common continuous beam bridges,the continuous arched beam structure is suitable for landmark building as gateway and also for symbol of city culture,however,the structural behavior of the type of the structure is intricate and construction cost is fairly high.