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2011年12期
| 标题 |
| 客运专线预制简支箱梁弹性上拱度统计分析(51卷) |
| 英文标题 |
| Statistical analysis of elastic camber for prefabricated simply-supported box girder on passenger-dedicated railway |
| 摘要 |
| 建立箱梁有限元模型，对梁体终张拉弹性上拱度进行了模拟计算。收集了3 306片客运专线32 m简支箱梁终张拉阶段上拱度实测值，对实测数据进行统计分析，绘制频率直方图。根据直方图特点确定样本总体基本符合正态分布，拟合了相应的概率密度函数，得出实测上拱度的样本均值和方差。分析了典型梁场的实测上拱度统计特点。实测数据统计分析表明,箱梁的弹性上拱度均值与设计值基本相符，梁体上拱度总体控制良好。 |
| 作者 |
| 新闻作者:郑永星，卢文良，贾桐，郑辉辉 |
| 关键字 |
