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Boom arch bridge concrete bridge deck system straining beam reinforcement structure and construction method
The invention relates to a suspender arch bridge concrete bridge deck system straining beam reinforcement structure and a construction method, the straining beam reinforcement structure comprises a straining beam prefabricated part and a straining beam cast-in-place part, and the two ends of the straining beam cast-in-place part are fixedly connected with a suspender cross beam or a non-suspender end cross beam through the straining beam prefabricated part. Closed square steel bars are adopted as stress main bars of the straining beam prefabricated part, semi-square steel bars are exposed at the edges, connected with the straining beam cast-in-place part, of the straining beam prefabricated part, and every two adjacent exposed semi-square steel bars are connected through the closed square steel bars of the cast-in-place section; the concrete between the closed square steel bars is restrained, so that the compression resistance of the concrete can be fully exerted, the function of a pin is achieved, the force transmission function of the straining beam stressed steel bars is achieved, and the high-altitude welding process of the upper edge stressed steel bars and the lower edge stressed steel bars in the bending direction of the straining beam is avoided; as the adjacent suspender cross beams are linked by closed square load-bearing steel bars, the suspender cross beams are fixed by stirrups at the outer edges of the load-bearing steel bars through wire binding or spot welding.
本发明涉及一种吊杆拱桥混凝土桥面系系梁配筋结构与施工方法，该系梁配筋结构，包括系梁预制部和系梁现浇部，系梁现浇部两端均通过系梁预制部与吊杆横梁或非吊杆端横梁固定连接。系梁预制部分的受力主筋采用封闭“口”形钢筋，并在与系梁现浇部分连接的边缘外露半“口”形钢筋，再利用现浇段的封闭“口”形钢筋将两个相邻外露的半“口”形钢筋进行“链接”；利用封闭的“口”形钢筋间的混凝土受到约束从而能充分发挥混凝土抗压性能，起到“销子”作用，实现系梁受力钢筋的传力作用，避免了系梁受弯方向上的上下缘受力钢筋的高空焊接工艺；由于相邻吊杆横梁进行封闭“口”形受力钢筋“链接”，受力钢筋外缘的箍筋扎丝或点焊固定吊杆横梁。
Boom arch bridge concrete bridge deck system straining beam reinforcement structure and construction method
The invention relates to a suspender arch bridge concrete bridge deck system straining beam reinforcement structure and a construction method, the straining beam reinforcement structure comprises a straining beam prefabricated part and a straining beam cast-in-place part, and the two ends of the straining beam cast-in-place part are fixedly connected with a suspender cross beam or a non-suspender end cross beam through the straining beam prefabricated part. Closed square steel bars are adopted as stress main bars of the straining beam prefabricated part, semi-square steel bars are exposed at the edges, connected with the straining beam cast-in-place part, of the straining beam prefabricated part, and every two adjacent exposed semi-square steel bars are connected through the closed square steel bars of the cast-in-place section; the concrete between the closed square steel bars is restrained, so that the compression resistance of the concrete can be fully exerted, the function of a pin is achieved, the force transmission function of the straining beam stressed steel bars is achieved, and the high-altitude welding process of the upper edge stressed steel bars and the lower edge stressed steel bars in the bending direction of the straining beam is avoided; as the adjacent suspender cross beams are linked by closed square load-bearing steel bars, the suspender cross beams are fixed by stirrups at the outer edges of the load-bearing steel bars through wire binding or spot welding.
本发明涉及一种吊杆拱桥混凝土桥面系系梁配筋结构与施工方法，该系梁配筋结构，包括系梁预制部和系梁现浇部，系梁现浇部两端均通过系梁预制部与吊杆横梁或非吊杆端横梁固定连接。系梁预制部分的受力主筋采用封闭“口”形钢筋，并在与系梁现浇部分连接的边缘外露半“口”形钢筋，再利用现浇段的封闭“口”形钢筋将两个相邻外露的半“口”形钢筋进行“链接”；利用封闭的“口”形钢筋间的混凝土受到约束从而能充分发挥混凝土抗压性能，起到“销子”作用，实现系梁受力钢筋的传力作用，避免了系梁受弯方向上的上下缘受力钢筋的高空焊接工艺；由于相邻吊杆横梁进行封闭“口”形受力钢筋“链接”，受力钢筋外缘的箍筋扎丝或点焊固定吊杆横梁。
Boom arch bridge concrete bridge deck system straining beam reinforcement structure and construction method
吊杆拱桥混凝土桥面系系梁配筋结构与施工方法
ZHAO YINRU (author) / YAN HAIQING (author) / XU WEI (author) / ZHU KEZHAO (author) / WANG LUNWEN (author)
2024-12-13
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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