A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Formwork-free prefabricated superimposed assembly type pier column-bearing platform structure and construction method thereof
The invention relates to the technical field of municipal bridge construction, in particular to a formwork-free prefabricated superimposed assembly type pier column-bearing platform structure and a construction method thereof. The structure comprises a prefabricated pier column shell, a prefabricated bearing platform shell and a steel sleeve, longitudinal steel bars and stirrups are arranged in the prefabricated pier column shell, cast-in-place pier column core concrete is poured in the prefabricated pier column shell, cast-in-place bearing platform sandwich concrete is poured in the prefabricated bearing platform shell, and the lower portion of the prefabricated pier column shell is sleeved with the steel sleeve. Long and short shear nails are arranged in the steel sleeve, and the steel sleeve is connected with the prefabricated pier column shell through the short shear nails; the steel sleeve is connected with cast-in-place pier column core concrete through a long shear nail, and a plurality of perforated rib plates are fixed to the outer portion, perpendicular to the side face, of the steel sleeve at equal intervals. The connecting performance and the anti-seismic performance of the pier stud-bearing platform structure are remarkably enhanced, the processes of erecting and dismantling formworks on a construction site and the like are greatly reduced, the high-precision requirement for prefabricating, assembling and positioning and the hoisting weight are reduced, and the construction progress is remarkably accelerated.
本发明涉及市政桥梁建设技术领域，具体是一种免模板的预制叠合装配式墩柱‑承台结构及其施工方法。包括预制墩柱外壳、预制承台外壳和钢套筒，预制墩柱外壳内设置纵向钢筋和箍筋，预制墩柱外壳内浇筑有现浇墩柱核心混凝土，预制承台外壳内浇筑有现浇承台夹芯混凝土，所述的钢套筒套在预制墩柱外壳下部，钢套筒内部设置长短式剪力钉，钢套筒与预制墩柱外壳通过短的剪力钉连接；钢套筒与现浇墩柱核心混凝土通过长的剪力钉连接，钢套筒外部垂直于侧面上等间距固定有若干开孔肋板。本发明显著增强了墩柱‑承台结构连接性能和抗震性能，大量减少施工现场模板搭设与拆除等工艺，降低预制拼装定位的高精度要求和吊装重量，显著加快了施工进度。
Formwork-free prefabricated superimposed assembly type pier column-bearing platform structure and construction method thereof
The invention relates to the technical field of municipal bridge construction, in particular to a formwork-free prefabricated superimposed assembly type pier column-bearing platform structure and a construction method thereof. The structure comprises a prefabricated pier column shell, a prefabricated bearing platform shell and a steel sleeve, longitudinal steel bars and stirrups are arranged in the prefabricated pier column shell, cast-in-place pier column core concrete is poured in the prefabricated pier column shell, cast-in-place bearing platform sandwich concrete is poured in the prefabricated bearing platform shell, and the lower portion of the prefabricated pier column shell is sleeved with the steel sleeve. Long and short shear nails are arranged in the steel sleeve, and the steel sleeve is connected with the prefabricated pier column shell through the short shear nails; the steel sleeve is connected with cast-in-place pier column core concrete through a long shear nail, and a plurality of perforated rib plates are fixed to the outer portion, perpendicular to the side face, of the steel sleeve at equal intervals. The connecting performance and the anti-seismic performance of the pier stud-bearing platform structure are remarkably enhanced, the processes of erecting and dismantling formworks on a construction site and the like are greatly reduced, the high-precision requirement for prefabricating, assembling and positioning and the hoisting weight are reduced, and the construction progress is remarkably accelerated.
本发明涉及市政桥梁建设技术领域，具体是一种免模板的预制叠合装配式墩柱‑承台结构及其施工方法。包括预制墩柱外壳、预制承台外壳和钢套筒，预制墩柱外壳内设置纵向钢筋和箍筋，预制墩柱外壳内浇筑有现浇墩柱核心混凝土，预制承台外壳内浇筑有现浇承台夹芯混凝土，所述的钢套筒套在预制墩柱外壳下部，钢套筒内部设置长短式剪力钉，钢套筒与预制墩柱外壳通过短的剪力钉连接；钢套筒与现浇墩柱核心混凝土通过长的剪力钉连接，钢套筒外部垂直于侧面上等间距固定有若干开孔肋板。本发明显著增强了墩柱‑承台结构连接性能和抗震性能，大量减少施工现场模板搭设与拆除等工艺，降低预制拼装定位的高精度要求和吊装重量，显著加快了施工进度。
Formwork-free prefabricated superimposed assembly type pier column-bearing platform structure and construction method thereof
免模板的预制叠合装配式墩柱-承台结构及其施工方法
LI QIAN (author) / TANG YIPING (author) / ZHANG XIAO (author) / WANG YONGBAO (author) / GAO YANG (author) / MENG LIN (author)
2021-08-24
Patent
Electronic Resource
Chinese
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