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A platform for research: civil engineering, architecture and urbanism
Reinforcing steel bar protective layer cushion block combined member for prefabricated box girder
The invention discloses a steel bar protection layer cushion block combined member for a prefabricated box girder. The steel bar protection layer cushion block combined member comprises a basalt fiber composite bar and a plurality of protection layer cushion blocks which are located on the basalt fiber composite bar and are evenly prefabricated in the axial direction of the basalt fiber composite bar. And the protective layer cushion block is formed by pouring ultra-high performance concrete. The basalt fiber composite bars adopted in the invention are not rusted, so that the requirement on the thickness of a steel bar protective layer is not required to be met, and the problem that the thickness of the steel bar protective layer is insufficient due to the fact that existing steel bars are bound at the outer ends of the vertical erection bars is solved; the strength of the basalt fiber composite bars is higher than that of common steel bars with the same specification, so that the basalt fiber composite bars are not easy to bend, and the problems of low thickness of corresponding steel bar protective layers and even bar exposure caused by the fact that existing steel bars are thin and easy to bend are solved; the protection layer cushion block is formed by pouring ultra-high performance concrete, and the problem that due to the fact that an existing cushion block is broken due to insufficient strength, the thicknesses of protection layers of steel bars and corresponding steel bars on a steel bar cage are insufficient is solved.
本发明公开了一种预制箱梁用钢筋保护层垫块组合构件，包括玄武岩纤维复合筋以及位于玄武岩纤维复合筋上且沿玄武岩纤维复合筋轴向方向均匀预制的若干保护层垫块；保护层垫块由超高性能混凝土浇筑制成。本发明中采用的玄武岩纤维复合筋不发生锈蚀，从而不需要满足钢筋保护层厚度要求，解决了现有钢筋因绑扎在竖向架立筋外端而导致的钢筋保护层厚度不足的问题；玄武岩纤维复合筋强度较同规格普通钢筋高，因此不易弯曲，解决了现有钢筋因较细容易弯曲而导致的相应钢筋保护层厚度偏低甚至露筋的问题；保护层垫块由超高性能混凝土浇筑而成，解决了现有垫块因强度不足破碎而导致的钢筋以及钢筋笼上相应钢筋的保护层厚度均不足的问题。
Reinforcing steel bar protective layer cushion block combined member for prefabricated box girder
The invention discloses a steel bar protection layer cushion block combined member for a prefabricated box girder. The steel bar protection layer cushion block combined member comprises a basalt fiber composite bar and a plurality of protection layer cushion blocks which are located on the basalt fiber composite bar and are evenly prefabricated in the axial direction of the basalt fiber composite bar. And the protective layer cushion block is formed by pouring ultra-high performance concrete. The basalt fiber composite bars adopted in the invention are not rusted, so that the requirement on the thickness of a steel bar protective layer is not required to be met, and the problem that the thickness of the steel bar protective layer is insufficient due to the fact that existing steel bars are bound at the outer ends of the vertical erection bars is solved; the strength of the basalt fiber composite bars is higher than that of common steel bars with the same specification, so that the basalt fiber composite bars are not easy to bend, and the problems of low thickness of corresponding steel bar protective layers and even bar exposure caused by the fact that existing steel bars are thin and easy to bend are solved; the protection layer cushion block is formed by pouring ultra-high performance concrete, and the problem that due to the fact that an existing cushion block is broken due to insufficient strength, the thicknesses of protection layers of steel bars and corresponding steel bars on a steel bar cage are insufficient is solved.
本发明公开了一种预制箱梁用钢筋保护层垫块组合构件，包括玄武岩纤维复合筋以及位于玄武岩纤维复合筋上且沿玄武岩纤维复合筋轴向方向均匀预制的若干保护层垫块；保护层垫块由超高性能混凝土浇筑制成。本发明中采用的玄武岩纤维复合筋不发生锈蚀，从而不需要满足钢筋保护层厚度要求，解决了现有钢筋因绑扎在竖向架立筋外端而导致的钢筋保护层厚度不足的问题；玄武岩纤维复合筋强度较同规格普通钢筋高，因此不易弯曲，解决了现有钢筋因较细容易弯曲而导致的相应钢筋保护层厚度偏低甚至露筋的问题；保护层垫块由超高性能混凝土浇筑而成，解决了现有垫块因强度不足破碎而导致的钢筋以及钢筋笼上相应钢筋的保护层厚度均不足的问题。
Reinforcing steel bar protective layer cushion block combined member for prefabricated box girder
一种预制箱梁用钢筋保护层垫块组合构件
GUO YONGZHI (author) / WANG QIANG (author) / ZHAO LEI (author) / YAO WANG (author) / XIANG GUOWEI (author) / ZHAO NING (author) / WANG XIAORAN (author) / GUO BAOLIN (author) / WU HUIFANG (author) / QIU SHUO (author)
2022-03-22
Patent
Electronic Resource
Chinese
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