铁道标准设计
鐵道標準設計
철도표준설계
RAILWAY STANDARD DESIGN
2014年
5期
65-68
,共4页
钢%混凝土结合梁%连续刚构%设计
鋼%混凝土結閤樑%連續剛構%設計
강%혼응토결합량%련속강구%설계
steel-concrete composite girder%continuous rigid frame%design
以某钢-混凝土结合连续刚构桥为例，从桥式布置、材料选择、结构设计、施工方法等几个方面进行介绍，并对关键构造和技术措施简要叙述。结论：上部结构采用大跨度结合梁，下部结构采用矩形墩，墩高跨度结构尺寸比较协调，线形流畅，造型轻盈，整体视觉效果好；结合梁与混凝土梁相比，其结构自重有较大减轻，便于桥墩基础满足受力要求；采用大节段工厂制造，现场吊装的施工方法，大大缩短了桥梁的施工周期，同时避免了对既有铁路、城市道路的干扰，保证其运营安全。
以某鋼-混凝土結閤連續剛構橋為例，從橋式佈置、材料選擇、結構設計、施工方法等幾箇方麵進行介紹，併對關鍵構造和技術措施簡要敘述。結論：上部結構採用大跨度結閤樑，下部結構採用矩形墩，墩高跨度結構呎吋比較協調，線形流暢，造型輕盈，整體視覺效果好；結閤樑與混凝土樑相比，其結構自重有較大減輕，便于橋墩基礎滿足受力要求；採用大節段工廠製造，現場弔裝的施工方法，大大縮短瞭橋樑的施工週期，同時避免瞭對既有鐵路、城市道路的榦擾，保證其運營安全。
이모강-혼응토결합련속강구교위례，종교식포치、재료선택、결구설계、시공방법등궤개방면진행개소，병대관건구조화기술조시간요서술。결론：상부결구채용대과도결합량，하부결구채용구형돈，돈고과도결구척촌비교협조，선형류창，조형경영，정체시각효과호；결합량여혼응토량상비，기결구자중유교대감경，편우교돈기출만족수력요구；채용대절단공엄제조，현장조장적시공방법，대대축단료교량적시공주기，동시피면료대기유철로、성시도로적간우，보증기운영안전。
This paper took a certain continuous rigid frame bridge with steel-concrete composite girder as an example, introduced the bridge layout, material selection, structure design, construction method and other issues, and briefly described the key structural and technical measures. Then the paper came to the conclusions: ( a ) The long-span composite girder was employed for the superstructure, and the rectangular piers for the substructure, so as to make the ratio of prier height to girder span harmonious, with an influent geometric shape, a graceful modeling and a good overall visual effect. ( b) Compared with concrete girder, the composite girder was more lightweight in dead load, and helped the bridge pier foundation meet stress requirement. ( c) By using a construction method, which enabled the large bridge segments to be made in factory and to be hoisted on site, the construction time was considerably shortened, and simultaneously the adverse influence on the existing railways and on the urban roads was avoided so as to ensure their operation safety.
