A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention provides a web-free concrete pre-bending composite beam bridge and a construction method thereof.The web-free concrete pre-bending composite beam bridge is provided with a plurality of pre-bending composite beams, each pre-bending composite beam comprises a pre-bending steel beam made of hot-rolled high-strength I-shaped steel, and the top and the bottom of each pre-bending steel beam are provided with a plurality of upper shear keys and lower shear keys correspondingly; first-stage concrete and second-stage concrete are poured at the bottoms and the tops of the pre-bent steel beams correspondingly, and the multiple pre-bent composite beams are connected through transverse partition steel plates and wet joints. Construction is simple, high-strength steel materials are adopted, the steel consumption is reduced, the dead weight of the steel beam is reduced, the applying strength of compressive pre-stress is improved, the working performance of the pre-bent composite beam is improved, web concrete does not need to be poured, the dead weight of the beam body is reduced while the construction workload is reduced, the loss of prestress is reduced, and the construction period is greatly shortened; and the production quality and efficiency are ensured and improved.
本发明提供了一种无腹板混凝土预弯组合梁桥及其施工方法，具有多个预弯组合梁，所述预弯组合梁包括采用热轧高强工字形钢的预弯钢梁，所述预弯钢梁的顶部和底部分别安装有多个上剪力键和下剪力键，所述预弯钢梁的底部和顶部分别浇筑有一期混凝土和二期混凝土，多个所述预弯组合梁之间通过横隔钢板和湿接缝连接。本发明施工简单，采用高强钢材料减少用钢量，降低钢梁自重，提高预压应力的施加强度，增加预弯组合梁的工作性能，无需浇筑腹板混凝土，在减少施工工作量的同时也降低了梁体的自重，减少了预应力的损失，大大缩短工期，保证和提高生产质量和效率。
The invention provides a web-free concrete pre-bending composite beam bridge and a construction method thereof.The web-free concrete pre-bending composite beam bridge is provided with a plurality of pre-bending composite beams, each pre-bending composite beam comprises a pre-bending steel beam made of hot-rolled high-strength I-shaped steel, and the top and the bottom of each pre-bending steel beam are provided with a plurality of upper shear keys and lower shear keys correspondingly; first-stage concrete and second-stage concrete are poured at the bottoms and the tops of the pre-bent steel beams correspondingly, and the multiple pre-bent composite beams are connected through transverse partition steel plates and wet joints. Construction is simple, high-strength steel materials are adopted, the steel consumption is reduced, the dead weight of the steel beam is reduced, the applying strength of compressive pre-stress is improved, the working performance of the pre-bent composite beam is improved, web concrete does not need to be poured, the dead weight of the beam body is reduced while the construction workload is reduced, the loss of prestress is reduced, and the construction period is greatly shortened; and the production quality and efficiency are ensured and improved.
本发明提供了一种无腹板混凝土预弯组合梁桥及其施工方法，具有多个预弯组合梁，所述预弯组合梁包括采用热轧高强工字形钢的预弯钢梁，所述预弯钢梁的顶部和底部分别安装有多个上剪力键和下剪力键，所述预弯钢梁的底部和顶部分别浇筑有一期混凝土和二期混凝土，多个所述预弯组合梁之间通过横隔钢板和湿接缝连接。本发明施工简单，采用高强钢材料减少用钢量，降低钢梁自重，提高预压应力的施加强度，增加预弯组合梁的工作性能，无需浇筑腹板混凝土，在减少施工工作量的同时也降低了梁体的自重，减少了预应力的损失，大大缩短工期，保证和提高生产质量和效率。
Webless concrete pre-bending composite beam bridge and construction method thereof
一种无腹板混凝土预弯组合梁桥及其施工方法
2024-03-19
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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