排序方式: 共有13条查询结果,搜索用时 530 毫秒
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为识别误差,将高程测量系统模型分为高程测量模型和高程测点模型。文中对预应力混凝土桥梁悬臂施工控制中主梁高程测点模型的系统误差进行详细分析.并通过采取合理措施进行消除。同时分析指出,施工规范中利用主梁顶面高程作为施工控制的质量标准。理论上可行。而实际获取的顶面高程结果可能无效。建议采用主梁底面高程作为施工控制的质量标准。 相似文献
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阐述了C60高强大体积混凝土体积收缩裂缝和温度裂缝易产生的原因,以及从配合比设计到施工过程裂缝控制的应对措施。 相似文献
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高频感应热源应用于水火弯板工艺的可行性研究(英文) 总被引:1,自引:0,他引:1
The purpose of this paper is to investigate the feasibility of high-frequency induction heat for the line heating process through a series of experimental studies and numerical calculations. The results show that the heating temperature of induction heating meets the demands of steel plate bending, and the deformation of a steel plate heated by induction heating can achieve the same effect as flame heating. Meanwhile, the finite element model of moving induction heating of the plate is developed, and the comparison of the residual strain fields and transverse shrinkage between these two kinds of heating shows that great similarity has been achieved. 相似文献
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薄壁V形墩施工和监控技术 总被引:1,自引:0,他引:1
根据某桥V形墩的受力特点-V形墩斜腿在施工过程中比较薄弱,分别从施工和监控两个方面,对V形墩的施工进行分析控制,并制定相应的方案,确保V形墩的安全施工。 相似文献
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