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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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支架现浇的异型系杆拱桥合理施工状态的确定
, PP. 93-98
Keywords: 桥梁工程,异型系杆拱桥,合理施工状态,受力性能,拱架卸落,调索
Abstract:
以支架现浇施工的长沙市黄柏浏阳河异型拱桥为工程背景,对异型拱桥施工全过程进行受力分析,给出了异型拱桥施工过程中各典型状态的受力性能和合理施工工序。异型系杆拱桥裸拱状态拱圈弯矩呈S形分布,拱圈支架分区卸落和成桥状态索力调整引起的弯矩增量分布可以用相应连续梁的弯矩来比拟。钢筋混凝土异型拱桥施工中不得出现裸拱状态;拱圈支架需按一定次序分区卸落,卸落过程中需按一定要求调整吊杆索力。
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