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A platform for research: civil engineering, architecture and urbanism
Fabricated tie bar concrete-filled steel tube composite beam and construction method thereof
The invention relates to a fabricated tie bar concrete-filled steel tube composite beam and a construction method thereof, the fabricated tie bar concrete-filled steel tube composite beam comprises a plurality of tie bar rectangular concrete-filled steel tube beams which extend along the length direction of a bridge deck and are arranged in parallel, and the adjacent tie bar rectangular concrete-filled steel tube beams are connected through a plurality of uniformly distributed I-shaped steel beams; variable-cross-section I-shaped steel is welded to the tops of the outer side faces of the two lacing bar rectangular concrete-filled steel tube beams arranged on the outermost side, and the bridge deck is supported and fixed to the tops of the lacing bar rectangular concrete-filled steel tube beams, the I-shaped steel beams and the variable-cross-section I-shaped steel beams. The composite beam is high in bearing capacity, large in flexural rigidity, good in ductility, reasonable in stress, high in assembly degree and convenient to construct, the defect that the steel pipe constraint effect is insufficient is overcome, bonding between the steel pipe and concrete is enhanced, and the problem that the beam is unstable when the H-shaped steel composite beam is large in height and span is solved.
一种装配式拉筋钢管混凝土组合梁及其施工方法，包括沿桥面板长度方向延伸的、多根平行布设的拉筋矩形钢管混凝土梁，相邻所述拉筋矩形钢管混凝土梁之间通过均匀布的多根工字钢梁连接，设置在最外侧的两根所述拉筋矩形钢管混凝土梁的外侧面顶部焊接有变截面工字钢，桥面板支撑固定在拉筋矩形钢管混凝土梁、工字钢梁和变截面工字钢梁的顶部。本发明承载力高，抗弯刚度大、延性好、受力合理、装配化程度高、施工方便，既弥补了钢管约束效果不足，增强了钢管与混凝土之间粘结，又解决了工字钢组合梁高度和跨度较大时梁失稳的问题。
Fabricated tie bar concrete-filled steel tube composite beam and construction method thereof
The invention relates to a fabricated tie bar concrete-filled steel tube composite beam and a construction method thereof, the fabricated tie bar concrete-filled steel tube composite beam comprises a plurality of tie bar rectangular concrete-filled steel tube beams which extend along the length direction of a bridge deck and are arranged in parallel, and the adjacent tie bar rectangular concrete-filled steel tube beams are connected through a plurality of uniformly distributed I-shaped steel beams; variable-cross-section I-shaped steel is welded to the tops of the outer side faces of the two lacing bar rectangular concrete-filled steel tube beams arranged on the outermost side, and the bridge deck is supported and fixed to the tops of the lacing bar rectangular concrete-filled steel tube beams, the I-shaped steel beams and the variable-cross-section I-shaped steel beams. The composite beam is high in bearing capacity, large in flexural rigidity, good in ductility, reasonable in stress, high in assembly degree and convenient to construct, the defect that the steel pipe constraint effect is insufficient is overcome, bonding between the steel pipe and concrete is enhanced, and the problem that the beam is unstable when the H-shaped steel composite beam is large in height and span is solved.
一种装配式拉筋钢管混凝土组合梁及其施工方法，包括沿桥面板长度方向延伸的、多根平行布设的拉筋矩形钢管混凝土梁，相邻所述拉筋矩形钢管混凝土梁之间通过均匀布的多根工字钢梁连接，设置在最外侧的两根所述拉筋矩形钢管混凝土梁的外侧面顶部焊接有变截面工字钢，桥面板支撑固定在拉筋矩形钢管混凝土梁、工字钢梁和变截面工字钢梁的顶部。本发明承载力高，抗弯刚度大、延性好、受力合理、装配化程度高、施工方便，既弥补了钢管约束效果不足，增强了钢管与混凝土之间粘结，又解决了工字钢组合梁高度和跨度较大时梁失稳的问题。
Fabricated tie bar concrete-filled steel tube composite beam and construction method thereof
一种装配式拉筋钢管混凝土组合梁及其施工方法
DING FAXING (author) / YIN YIXIANG (author) / LYU FEI (author) / WANG LIPING (author) / YU YUJIE (author)
2021-07-13
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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