경간/형고비 34를 실현한 IPC 거더교의 연구

The length-depth ratio of the preflex and PSC girder is very important variable. But PSC girder is very difficult to reduce the depth. If the bridge that girder depth is most important variable, then generally the great part of engineers are use the preflex girder that more expensive method then PSC girder. This paper introduce the design example that replace the preflex girder with the IPC girder. The bridge span is 44m, and depth is 1.15m. The depth is restrain in 1.15m by several conditions. And it is compare preflex with IPC girder in semi condition. These two girders are very different in economy and execution. So, this paper present more economic and easy construction method.