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柔性桥台合理加筋间距的力学模型试验
引用本文:王初生,杜灏洁.柔性桥台合理加筋间距的力学模型试验[J].力学与实践,2004,26(4):31-34.
作者姓名:王初生  杜灏洁
作者单位:1. 同济大学地下建筑与工程系,上海,200092
2. 中国地质大学,武汉,430074
基金项目:广东省交通厅项目(99-142)资助
摘    要:桥头跳车是公路工程中普遍且复杂的问题,加筋土结构的柔性桥台的应用,可能在根本上避免错台的出现和桥头跳车的产生。然而,其加筋间距的确定具有较大的盲目性。对土工织物加筋柔性桥台进行了4组大模型结构力学试验,对不同加筋间距下柔性桥台的工程特性进行了详尽的对比分析。试验结果表明,土工织物加筋柔性桥台的合理间距为30—50cm。

关 键 词:桥梁工程  柔性桥台  力学试验  加筋间距  对比分析  桥头跳车
修稿时间:2003年6月9日

MECHANICAL MODEL TEST FOR DETERMINATION OF INTERVALS OF FLEXIBLE ABUTMENT
WANG Chusheng.MECHANICAL MODEL TEST FOR DETERMINATION OF INTERVALS OF FLEXIBLE ABUTMENT[J].Mechanics and Engineering,2004,26(4):31-34.
Authors:WANG Chusheng
Abstract:Vehicle bump at the bridge-head is a common disease from differential settlement between bridge structure and approach fill in a super highway. In engineering, there is no ideal remedy for it, because the common bridge abutment fill cannot be compacted effectively. In recent years, a new type abutment - flexible abutment was applied in engineering, which may prevent differential settlement radically. But its reinforced interval value was determined blindly. In this article, 4 groups of model tests were carried out for comparative analysis. The tests indicated that the best reinforced interval value was between 30cm and 50cm.
Keywords:flexible abutment  model test  reinforced interval value  comparative analysis
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