Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
UHPC thin-wall box girder structure of section steel stiffening framework and construction method
The invention discloses a UHPC thin-wall box girder structure of a section steel stiffening framework and a construction method, and relates to the technical field of bridge engineering construction. In order to solve the problems that the section of a UHPC thin-wall box is unstable, and large deformation and damage of a bridge are prior to strength damage of a bridge structure, the invention provides the UHPC thin-wall box girder structure of the section steel stiffening framework and the construction method, section steel is machined to form section steel parts with tandem rebar holes and anchor reinforcement bars, and the section steel parts are strung through series steel bars to form the section steel stiffening framework. When steel bars of a box girder body are bound, the section steel stiffening framework is accurately positioned and installed, and then ultra-high performance concrete is poured to form the section steel stiffening UHPC thin-wall box girder. According to the invention, conventional section steel and steel bars are machined, manufactured and combined into the section steel stiffening framework, the deformation problems of instability, distortion and the like of an ultra-high performance concrete thin-wall structure are solved through the section steel stiffening framework, and the purposes that the overall self weight of the box girder is reduced, the construction method is simple, structural stress is clear, and engineering investment is economical are achieved.
本发明公开了一种型钢加劲骨架的UHPC薄壁箱梁结构及施工方法，涉及桥梁工程建设技术领域。为解决UHPC薄壁箱型截面的失稳，桥梁大变形破坏先于桥梁结构的强度破坏的问题，本发明提供一种型钢加劲骨架的UHPC薄壁箱梁结构及施工方法，对型钢进行加工后形成带有串联钢筋孔和增锚钢筋的型钢件，通过串联钢筋将型钢件穿串后形成型钢加劲骨架。箱梁梁体钢筋绑扎时将型钢加劲骨架精确定位并安装，随后浇筑超高性能混凝土形成型钢加劲的UHPC薄壁箱梁。本发明所述箱梁利用常规的型钢及钢筋加工制造组合为型钢加劲骨架，通过型钢加劲骨架解决超高性能混凝土薄壁结构失稳、畸变等变形问题，达到箱梁整体自重减轻、施工方法简单、结构受力明晰、工程投资经济的目标。
UHPC thin-wall box girder structure of section steel stiffening framework and construction method
The invention discloses a UHPC thin-wall box girder structure of a section steel stiffening framework and a construction method, and relates to the technical field of bridge engineering construction. In order to solve the problems that the section of a UHPC thin-wall box is unstable, and large deformation and damage of a bridge are prior to strength damage of a bridge structure, the invention provides the UHPC thin-wall box girder structure of the section steel stiffening framework and the construction method, section steel is machined to form section steel parts with tandem rebar holes and anchor reinforcement bars, and the section steel parts are strung through series steel bars to form the section steel stiffening framework. When steel bars of a box girder body are bound, the section steel stiffening framework is accurately positioned and installed, and then ultra-high performance concrete is poured to form the section steel stiffening UHPC thin-wall box girder. According to the invention, conventional section steel and steel bars are machined, manufactured and combined into the section steel stiffening framework, the deformation problems of instability, distortion and the like of an ultra-high performance concrete thin-wall structure are solved through the section steel stiffening framework, and the purposes that the overall self weight of the box girder is reduced, the construction method is simple, structural stress is clear, and engineering investment is economical are achieved.
本发明公开了一种型钢加劲骨架的UHPC薄壁箱梁结构及施工方法，涉及桥梁工程建设技术领域。为解决UHPC薄壁箱型截面的失稳，桥梁大变形破坏先于桥梁结构的强度破坏的问题，本发明提供一种型钢加劲骨架的UHPC薄壁箱梁结构及施工方法，对型钢进行加工后形成带有串联钢筋孔和增锚钢筋的型钢件，通过串联钢筋将型钢件穿串后形成型钢加劲骨架。箱梁梁体钢筋绑扎时将型钢加劲骨架精确定位并安装，随后浇筑超高性能混凝土形成型钢加劲的UHPC薄壁箱梁。本发明所述箱梁利用常规的型钢及钢筋加工制造组合为型钢加劲骨架，通过型钢加劲骨架解决超高性能混凝土薄壁结构失稳、畸变等变形问题，达到箱梁整体自重减轻、施工方法简单、结构受力明晰、工程投资经济的目标。
UHPC thin-wall box girder structure of section steel stiffening framework and construction method
一种型钢加劲骨架的UHPC薄壁箱梁结构及施工方法
LIU CHEN (Autor:in) / GAO MINGCHANG (Autor:in) / SUN YUJIA (Autor:in) / CHEN YINGTAO (Autor:in) / YANG SHAOJUN (Autor:in) / LYU CUNJIE (Autor:in)
25.02.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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