独柱支承预应力连续弯箱梁扭矩调整

The adjustment of torsion moment for single-column supported continuous curved prestressed beam bridge

采用一种比较简单、有效的空间预应力近似计算方法,通过合理配置预应力束,对独柱支承预应力连续弯箱梁的扭矩做出调整,以削减扭矩峰值,使主梁处于较佳受力状态。最后通过模型试验对调整结果做了分析,供设计人员参考。

In this paper,a comparatively simple and effective approximate calculation method of prestressed wire was adopted.The adjustment of torsion moment for single-column sup-ported continuous curved prestressed beam bridge was made by proper arrangement of pre-stressed wire to lower the climax torsion moment of the main beam and set in a better state of forced.At last,with a model experiment ,an analysis was made of the adjustment results for de-signers to refer to.