铁道标准设计
鐵道標準設計
철도표준설계
RAILWAY STANDARD DESIGN
2015年
9期
83-86,135
,共5页
铁路桥%钢混组合结构%框架墩%钢球铰%体系转换%设计%施工
鐵路橋%鋼混組閤結構%框架墩%鋼毬鉸%體繫轉換%設計%施工
철로교%강혼조합결구%광가돈%강구교%체계전환%설계%시공
Railway bridge%Steel concrete composite structure%Frame pier%Steel ball hinge%System transformation%Design%Construction
新建铁路与既有铁路以小角度交叉时，为减小结构跨度、结构高度、施工高度和运营铁路上方施工作业时间，多采用钢横梁混凝土立柱组合框架墩结构。以连盐线跨越既有陇海铁路为工程实践，分析控制结构设计的各项指标及钢横梁的预拱度设置，介绍钢横梁与混凝土立柱先铰结后刚接的体系转换形式，创新地提出新型临时支撑—钢球铰的理念，阐述墩梁结合处的节点设计与施工关键技术。
新建鐵路與既有鐵路以小角度交扠時，為減小結構跨度、結構高度、施工高度和運營鐵路上方施工作業時間，多採用鋼橫樑混凝土立柱組閤框架墩結構。以連鹽線跨越既有隴海鐵路為工程實踐，分析控製結構設計的各項指標及鋼橫樑的預拱度設置，介紹鋼橫樑與混凝土立柱先鉸結後剛接的體繫轉換形式，創新地提齣新型臨時支撐—鋼毬鉸的理唸，闡述墩樑結閤處的節點設計與施工關鍵技術。
신건철로여기유철로이소각도교차시，위감소결구과도、결구고도、시공고도화운영철로상방시공작업시간，다채용강횡량혼응토립주조합광가돈결구。이련염선과월기유롱해철로위공정실천，분석공제결구설계적각항지표급강횡량적예공도설치，개소강횡량여혼응토립주선교결후강접적체계전환형식，창신지제출신형림시지탱—강구교적이념，천술돈량결합처적절점설계여시공관건기술。
Composite frame pier structures with steel beam and concrete column are often adopted where a new line is crossing over the existing railway at a small angle to reduce the span and height of the structure, the construction height, shorten the time for construction over the operating railway line. With reference to Lian-Yan Line ( Lianyungang-Yancheng ) crossing over the existing Longhai Railway ( Lanzhou-Lianyungang) , this paper analyzes the indexes of structure design and the camber setting of steel beam, addresses the system transformation between the steel beam and concrete column, i. e. , from hinging to rigid connection, and puts forward a creative temporary supporting concept of steel ball hinge, and details on the joint where the pier and the beam are connected and some key construction technologies.
