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A platform for research: civil engineering, architecture and urbanism
Steel-concrete combined hollow T-beam bridge structure and manufacturing method thereof
The invention provides a steel-concrete combined hollowed-out T-beam bridge structure and a manufacturing method thereof.The steel-concrete combined hollowed-out T-beam bridge structure comprises a plurality of prefabricated steel-concrete combined T-beam units, the middle section of the bottom of each prefabricated steel-concrete combined T-beam unit is of an arch structure, and a steel tie bar is arranged at the arch structure to form a hollowed-out shape; beam ends of the adjacent prefabricated steel-concrete combined T-beam units are connected through cast-in-place wet joints, two ends of the adjacent prefabricated steel-concrete combined T-beam units are connected through diaphragm plates, middle sections of the adjacent prefabricated steel-concrete combined T-beam units are connected through midspan diaphragm plates, and concrete bridge decks are cast in place on the prefabricated steel-concrete combined T-beam units. The T-shaped section steel is embedded into the bottom of the concrete beam, the composite connecting tenon is formed by cutting the steel teeth of the section and the reinforcing steel bars, and the high anti-fatigue performance is achieved. Compared with a traditional large-scale prestressed concrete structure, a slender structure type can be achieved, the beam height of a concrete part is reduced in the midspan, the concrete consumption is saved, the hoisting weight is reduced, and the bearing capacity of the midspan section can be improved by adding the steel tie bars.
本发明提出了一种钢混组合镂空T梁桥结构及其制作方法，包括预制钢混组合T梁单元，预制钢混组合T梁单元设有多片，预制钢混组合T梁单元底部中段为拱形结构，拱形结构处设有钢系杆，形成镂空状，相邻预制钢混组合T梁单元梁端之间通过现浇湿接缝连接，相邻预制钢混组合T梁单元两端之间通过横隔板连接，中段通过跨中横隔板连接，预制钢混组合T梁单元上现浇混凝土桥面板。将T型型钢嵌入混凝土梁的底部，通过切割截面的钢齿及加强钢筋形成复合连接榫，具有较高的抗疲劳性能。与传统大型预应力混凝土结构相比，能够实现细长的结构类型，跨中降低混凝土部分梁高，节省混凝土用量，减轻了吊装重量，增加了钢系杆可提高跨中截面的承载能力。
Steel-concrete combined hollow T-beam bridge structure and manufacturing method thereof
The invention provides a steel-concrete combined hollowed-out T-beam bridge structure and a manufacturing method thereof.The steel-concrete combined hollowed-out T-beam bridge structure comprises a plurality of prefabricated steel-concrete combined T-beam units, the middle section of the bottom of each prefabricated steel-concrete combined T-beam unit is of an arch structure, and a steel tie bar is arranged at the arch structure to form a hollowed-out shape; beam ends of the adjacent prefabricated steel-concrete combined T-beam units are connected through cast-in-place wet joints, two ends of the adjacent prefabricated steel-concrete combined T-beam units are connected through diaphragm plates, middle sections of the adjacent prefabricated steel-concrete combined T-beam units are connected through midspan diaphragm plates, and concrete bridge decks are cast in place on the prefabricated steel-concrete combined T-beam units. The T-shaped section steel is embedded into the bottom of the concrete beam, the composite connecting tenon is formed by cutting the steel teeth of the section and the reinforcing steel bars, and the high anti-fatigue performance is achieved. Compared with a traditional large-scale prestressed concrete structure, a slender structure type can be achieved, the beam height of a concrete part is reduced in the midspan, the concrete consumption is saved, the hoisting weight is reduced, and the bearing capacity of the midspan section can be improved by adding the steel tie bars.
本发明提出了一种钢混组合镂空T梁桥结构及其制作方法，包括预制钢混组合T梁单元，预制钢混组合T梁单元设有多片，预制钢混组合T梁单元底部中段为拱形结构，拱形结构处设有钢系杆，形成镂空状，相邻预制钢混组合T梁单元梁端之间通过现浇湿接缝连接，相邻预制钢混组合T梁单元两端之间通过横隔板连接，中段通过跨中横隔板连接，预制钢混组合T梁单元上现浇混凝土桥面板。将T型型钢嵌入混凝土梁的底部，通过切割截面的钢齿及加强钢筋形成复合连接榫，具有较高的抗疲劳性能。与传统大型预应力混凝土结构相比，能够实现细长的结构类型，跨中降低混凝土部分梁高，节省混凝土用量，减轻了吊装重量，增加了钢系杆可提高跨中截面的承载能力。
Steel-concrete combined hollow T-beam bridge structure and manufacturing method thereof
一种钢混组合镂空T梁桥结构及其制作方法
YIN LIANG (author) / XIE YUMENG (author) / WU ZHIGANG (author) / WANG SHENGBIN (author) / YANG DAHAI (author) / SHAN WENSHENG (author) / CHANG JIANG (author) / YANG KAI (author) / ZHU ZIPING (author) / WANG QIAN (author)
2023-09-22
Patent
Electronic Resource
Chinese
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