A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Corrugated steel web I-shaped steel composite beam bridge with longitudinal prestress
The invention relates to a corrugated steel web I-shaped steel composite beam bridge with longitudinal prestress, which comprises a composite beam, a transverse connecting system, a longitudinal prestressing tendon and a concrete bridge deck, and is characterized in that the composite beam is a corrugated steel web I-shaped steel beam; the transverse connecting systems are longitudinally arranged at equal intervals; the longitudinal prestressing tendons comprise fulcrum hogging moment steel tendons and full-length steel tendons; the concrete bridge deck slab is constructed through a cast-in-place method. The corrugated steel web I-shaped steel beam is used as a steel beam in the composite beam, and due to the accordion effect of the corrugated steel web, the utilization efficiency of prestress is improved; the longitudinal prestress is tensioned, so that the cracking risk of the bridge deck is reduced, the service life of the structure is prolonged, and the span and application range of the bridge are increased; the concrete bridge deck slab is designed according to tensile stress control, so that the use amount of steel bars is reduced, the construction process and equipment investment of the waterproof layer of the bridge deck are reduced, and the structural economy is improved; the corrugated steel webs do not need to be additionally provided with longitudinal and transverse stiffening ribs, so that steel consumption and construction procedures are reduced.
本发明涉及一种设有纵向预应力的波折钢腹板工字钢组合梁桥，包括：组合梁、横向连接系、纵向预应力束、混凝土桥面板，其中：组合梁为波折钢腹板工字钢梁；横向连接系纵向等间距布置；纵向预应力束包括支点负弯矩钢束和通长钢束；混凝土桥面板采用现浇法施工。波折钢腹板工字钢梁作为组合梁中的钢梁，由于波折钢腹板的“手风琴效应”，提高了预应力利用效率；张拉纵向预应力，降低了桥面板开裂风险，提高了结构使用寿命，增大了桥梁跨径与适用范围；混凝土桥面板按拉应力控制设计，降低了钢筋用量，减少了桥面防水层施工工艺与设备投入，提高了结构经济性；波形钢腹板无需增设纵横向加劲肋，节省了用钢量及施工工序。
Corrugated steel web I-shaped steel composite beam bridge with longitudinal prestress
The invention relates to a corrugated steel web I-shaped steel composite beam bridge with longitudinal prestress, which comprises a composite beam, a transverse connecting system, a longitudinal prestressing tendon and a concrete bridge deck, and is characterized in that the composite beam is a corrugated steel web I-shaped steel beam; the transverse connecting systems are longitudinally arranged at equal intervals; the longitudinal prestressing tendons comprise fulcrum hogging moment steel tendons and full-length steel tendons; the concrete bridge deck slab is constructed through a cast-in-place method. The corrugated steel web I-shaped steel beam is used as a steel beam in the composite beam, and due to the accordion effect of the corrugated steel web, the utilization efficiency of prestress is improved; the longitudinal prestress is tensioned, so that the cracking risk of the bridge deck is reduced, the service life of the structure is prolonged, and the span and application range of the bridge are increased; the concrete bridge deck slab is designed according to tensile stress control, so that the use amount of steel bars is reduced, the construction process and equipment investment of the waterproof layer of the bridge deck are reduced, and the structural economy is improved; the corrugated steel webs do not need to be additionally provided with longitudinal and transverse stiffening ribs, so that steel consumption and construction procedures are reduced.
本发明涉及一种设有纵向预应力的波折钢腹板工字钢组合梁桥，包括：组合梁、横向连接系、纵向预应力束、混凝土桥面板，其中：组合梁为波折钢腹板工字钢梁；横向连接系纵向等间距布置；纵向预应力束包括支点负弯矩钢束和通长钢束；混凝土桥面板采用现浇法施工。波折钢腹板工字钢梁作为组合梁中的钢梁，由于波折钢腹板的“手风琴效应”，提高了预应力利用效率；张拉纵向预应力，降低了桥面板开裂风险，提高了结构使用寿命，增大了桥梁跨径与适用范围；混凝土桥面板按拉应力控制设计，降低了钢筋用量，减少了桥面防水层施工工艺与设备投入，提高了结构经济性；波形钢腹板无需增设纵横向加劲肋，节省了用钢量及施工工序。
Corrugated steel web I-shaped steel composite beam bridge with longitudinal prestress
一种设有纵向预应力的波折钢腹板工字钢组合梁桥
WANG BIN (author) / DENG HONGZONG (author) / LI LEI (author) / SU PENG (author) / WANG WEI (author) / YANG KUN (author) / HOU YUNQIANG (author) / CHANG XINYU (author)
2024-09-10
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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