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沙尘侵入对铁路桥梁支座摩擦因数的影响试验研究

Guangzhong YU,Junyong XIA, Yu LIU,Yixin JIN,Jun LIU,Xiangliang NING

Railway Engineering（2019）

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Abstract
介绍了对球型支座进行沙尘侵入影响研究的必要性,并结合我国新疆地区实际沙尘情况,设计了一套试验方案.针对球型支座静摩擦因数随侵入沙尘量的变化情况进行试验研究,验证含沙量对支座短期静摩擦因数的影响.试验结果表明支座短期摩擦因数对沙尘侵入较为敏感,较少的沙尘就可使支座平面摩擦因数超过标准容许值.据此对支座提出了采用全密封防沙尘结构的建议.
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