摘要
对本文给出的不同桥墩支承形式下的预应力自密实混凝土连续梁桥进行了施工阶段及成桥后的稳定性分析。结果表明:在施工阶段,两种桥墩支承下的结构具有不同的失稳模态,单柱式桥墩支承的结构稳定特征值较大,稳定性较好。成桥后,双柱式桥墩支承的结构失稳模态发生变化,稳定特征值提高较大,表现出更好的稳定性。
Stability analysis is carried out to prestressed SCC continuous beam bridge in construction stage and completed bridge stage,which is supported by single-column bridge pier and double-column bridge piers given in paper. It is shown that the structures supported by different bridge piers have different instability modes in construction stages.The structure supported by singlecolumn bridge pier has better stability. In completed bridge stage, the structure supported by double-column bridge piers has different instability mode compared with construction stage, and has better stability.
出处
《中国建材科技》
2016年第4期59-62,共4页
China Building Materials Science & Technology
基金
浙江省水利厅科技计划项目--钢纤维自密实混凝土制备技术的研究(RC1549)
关键词
自密实混凝土
连续梁桥
施工阶段
成桥
稳定性分析
self-consolidating concrete
continuous beam bridge
construction stage
completed bridge stage
stability analysis
