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首页> 外文会议>Innovative infrastructures - toward human urbanism : Report >The Effects of Holes in the Web on the Multi-stage Prestressed Concrete Girder
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The Effects of Holes in the Web on the Multi-stage Prestressed Concrete Girder

机译：腹板上孔洞对多阶段预应力混凝土梁的影响

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Bulb-T girders are mainly using under 50m span bridges in Korea even though these are morerneconomical than the other girder types. To solve demerits and limits of the current bulb-T girders,rnHoled Incrementally Pre-stressed Concrete (H-IPC) is recently developed at Ajou Univ. in thernRepublic of Korea.rnH-IPC girder is applied in several revolutionary design concepts compared with the current bulb-Trngirder. At first, a large number of holes are introduced in the web of the girder and the arrangementrnof tendons is optimized because some anchorages at the girder end are moved into holes in the web.rnPrestressing force is introduced in multiple stages by each loading stage to minimize the section ofrnthe girder.rnThis study shows the deflection behavior analysis of full scale H-IPC girder, which was 2m inrnheight and 50m in length, with holes of differing diameters in the web.
机译：在韩国，Bulb-T大梁主要使用跨度在5000万以下的桥梁，尽管这些桥梁比其他类型的梁更经济。为了解决目前的T型大梁的缺点和局限性，最近在Ajou大学开发了带孔的增量预应力混凝土（H-IPC）。在大韩民国，与目前的灯泡式跨接器（trngirder）相比，rnH-IPC大梁在几种革命性的设计概念中得到了应用。首先，在大梁腹板中引入大量孔，并优化腱的布置，因为在大梁端部的一些锚固移入了腹板中的孔中。这项研究显示了全尺寸H-IPC梁的挠曲行为分析，该梁的高度为2m，长度为50m，在腹板上有不同直径的孔。

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