A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fabricated bridge substructure and construction method thereof
The invention discloses a fabricated bridge substructure which comprises a foundation structure, a prefabricated bent cap and a quasi-prefabricated pier column unit, and foundation reserved vertical ribs are arranged at the top of the foundation structure; cover beam reserved vertical ribs are arranged on the lower side of the prefabricated bent cap. At least one sprue gate vertically penetrating through the prefabricated bent cap is arranged in the area covered by the reserved vertical ribs of the bent cap; a standard prefabricated pier column unit is a hollow cylinder with openings in the upper portion and the lower portion and penetrates through the foundation reserved vertical ribs to be vertically inserted into the top of the foundation structure; the prefabricated bent cap is in lap joint with the top of the standard prefabricated pier column unit and extends into the hollow area of the standard prefabricated pier column unit through the cover beam reserved vertical ribs to be connected in an inserted mode. Expansion concrete is cast in situ in the sprue gate and the hollow area of the standard prefabricated pier column unit. The construction quality can be controlled in a cast-in-place and prefabricating combined mode, investment of formworks is omitted, the weight is low, installation is convenient and rapid, the aerial work time can be effectively shortened, the construction efficiency is improved, and the construction period is shortened.
本发明公布了一种装配式桥梁下部结构，包括基础结构、预制盖梁和准预制墩柱单元，基础结构顶部布置有基础预留竖筋；预制盖梁的下侧布置有盖梁预留竖筋；在盖梁预留竖筋覆盖区域内设有至少一个竖向贯通于预制盖梁的浇注口；标准预制墩柱单元为上下开口的空心筒体，标准预制墩柱单元穿过基础预留竖筋竖直插接在基础结构顶部；预制盖梁搭接在标准预制墩柱单元的顶部，通过盖梁预留竖筋伸入标准预制墩柱单元的中空区域内进行插接；于浇注口和标准预制墩柱单元的中空区域内现浇有膨胀混凝土。本发明采用现浇与预制结合的方式可控制施工质量，不仅取消了模板的投入，且重量轻、安装方便快速，能够有效减少高空作业时间，提高施工效率，缩短施工工期。
Fabricated bridge substructure and construction method thereof
The invention discloses a fabricated bridge substructure which comprises a foundation structure, a prefabricated bent cap and a quasi-prefabricated pier column unit, and foundation reserved vertical ribs are arranged at the top of the foundation structure; cover beam reserved vertical ribs are arranged on the lower side of the prefabricated bent cap. At least one sprue gate vertically penetrating through the prefabricated bent cap is arranged in the area covered by the reserved vertical ribs of the bent cap; a standard prefabricated pier column unit is a hollow cylinder with openings in the upper portion and the lower portion and penetrates through the foundation reserved vertical ribs to be vertically inserted into the top of the foundation structure; the prefabricated bent cap is in lap joint with the top of the standard prefabricated pier column unit and extends into the hollow area of the standard prefabricated pier column unit through the cover beam reserved vertical ribs to be connected in an inserted mode. Expansion concrete is cast in situ in the sprue gate and the hollow area of the standard prefabricated pier column unit. The construction quality can be controlled in a cast-in-place and prefabricating combined mode, investment of formworks is omitted, the weight is low, installation is convenient and rapid, the aerial work time can be effectively shortened, the construction efficiency is improved, and the construction period is shortened.
本发明公布了一种装配式桥梁下部结构，包括基础结构、预制盖梁和准预制墩柱单元，基础结构顶部布置有基础预留竖筋；预制盖梁的下侧布置有盖梁预留竖筋；在盖梁预留竖筋覆盖区域内设有至少一个竖向贯通于预制盖梁的浇注口；标准预制墩柱单元为上下开口的空心筒体，标准预制墩柱单元穿过基础预留竖筋竖直插接在基础结构顶部；预制盖梁搭接在标准预制墩柱单元的顶部，通过盖梁预留竖筋伸入标准预制墩柱单元的中空区域内进行插接；于浇注口和标准预制墩柱单元的中空区域内现浇有膨胀混凝土。本发明采用现浇与预制结合的方式可控制施工质量，不仅取消了模板的投入，且重量轻、安装方便快速，能够有效减少高空作业时间，提高施工效率，缩短施工工期。
Fabricated bridge substructure and construction method thereof
装配式桥梁下部结构及其施工方法
MO ZHIQIANG (author) / LUO HONG (author) / WANG YUAN (author) / ZHU QIAN (author) / LIAO YUANQIANG (author) / DAI JUNRU (author)
2021-04-06
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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