华中科技大学学报（自然科学版）Issue(9)：89-94,6.DOI:10.13245/j.hust.150917
不同场地条件下连续梁桥锁死销减震应用研究
Research on damping application of locking dowel for continuous bridges in different site conditions
摘要
Abstract
To achieve the purposes of collaborative bearing the horizontal seismic force by using of the sliding‐pier and the fixed‐pier ,the locking dowel by acceleration activating was presented .The loc‐king dowel could restrict the relatively displacement between the sliding‐piers and beams under strong earthquakes .The damping effect of the locking dowel was illustrated in the different site conditions combined with a bridge project ,at the same time ,the influence of the site condition on the selection of parameters and the adaptability of pier height was systematic analyzed .The research results indicate that the locking dowel can indeed improve the seismic performance of continuous bridge ,thus reduce the seismic response on the fixed pier and the relatively displacement between the piers and beams . The selection range of parameter is sensitive to the change of site condition .The seismic response of continuous bridge structure is reduced rapidly by using locking dowel in the second‐class site ,the third‐class site and the fourth‐class site .But the locking dowel is feasible only for the continuous bridges with middle and high height pier in the first‐class site .关键词
桥梁/地震响应/场地条件/减震/锁死销Key words
bridge/seismic response/site condition/damping/locking dowel分类
交通工程引用本文复制引用
陈士通,张文学,杜修力,刘海陆..不同场地条件下连续梁桥锁死销减震应用研究[J].华中科技大学学报（自然科学版）,2015,(9):89-94,6.基金项目
国家自然科学基金资助项目（51378034／E080505）；北京市自然科学基金资助项目（8122007）． （）
