A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
External prestressing tendon steering combined frame structure
The invention relates to an external prestressing tendon steering combined type frame structure which comprises a post-pouring concrete frame and a steel box structure, the post-pouring concrete frame comprises a bottom, the bottom end of the bottom is used for being connected with an original concrete box girder through embedded steel bars, and a steering device is arranged in the bottom; the top end, the bottom end and the two sides of the steel box structure are used for being connected with original concrete box girders, and the steel box structure is fixed to the top end of the bottom. The structure composed of the steel box structure and the post-cast concrete frame is large in overall rigidity, part of vertical component force of external prestress can be directly transmitted to the top and bottom plates of an original concrete box girder through the steel box structure, and the number of embedded steel bars needed when the steering device is connected with the original concrete box girder is greatly reduced; the problem that large-area damage of an original structure is caused or a large number of steel bars cannot be planted due to position conflict with internal prestressing tendons in an original concrete box girder is avoided.
本申请涉及一种体外预应力束转向组合式框架结构，其包括：后浇混凝土框和钢箱结构，后浇混凝土框包括底部，底部底端用于与原混凝土箱梁通过植入钢筋连接，底部内设有转向装置；钢箱结构顶端、底端和两侧均用于与原混凝土箱梁连接，且钢箱结构固定于底部顶端。本发明中由钢箱结构和后浇混凝土框两部分组成的结构整体刚度大，部分体外预应力的竖向分力可直接通过钢箱结构传递给原混凝土箱梁顶、底板，大大减少了转向装置与原混凝土箱梁连接时需要的植入钢筋数量，避免造成原结构大面积损伤或由于与原混凝土箱梁中的体内预应力束位置冲突而无法大量植筋的问题。
External prestressing tendon steering combined frame structure
The invention relates to an external prestressing tendon steering combined type frame structure which comprises a post-pouring concrete frame and a steel box structure, the post-pouring concrete frame comprises a bottom, the bottom end of the bottom is used for being connected with an original concrete box girder through embedded steel bars, and a steering device is arranged in the bottom; the top end, the bottom end and the two sides of the steel box structure are used for being connected with original concrete box girders, and the steel box structure is fixed to the top end of the bottom. The structure composed of the steel box structure and the post-cast concrete frame is large in overall rigidity, part of vertical component force of external prestress can be directly transmitted to the top and bottom plates of an original concrete box girder through the steel box structure, and the number of embedded steel bars needed when the steering device is connected with the original concrete box girder is greatly reduced; the problem that large-area damage of an original structure is caused or a large number of steel bars cannot be planted due to position conflict with internal prestressing tendons in an original concrete box girder is avoided.
本申请涉及一种体外预应力束转向组合式框架结构，其包括：后浇混凝土框和钢箱结构，后浇混凝土框包括底部，底部底端用于与原混凝土箱梁通过植入钢筋连接，底部内设有转向装置；钢箱结构顶端、底端和两侧均用于与原混凝土箱梁连接，且钢箱结构固定于底部顶端。本发明中由钢箱结构和后浇混凝土框两部分组成的结构整体刚度大，部分体外预应力的竖向分力可直接通过钢箱结构传递给原混凝土箱梁顶、底板，大大减少了转向装置与原混凝土箱梁连接时需要的植入钢筋数量，避免造成原结构大面积损伤或由于与原混凝土箱梁中的体内预应力束位置冲突而无法大量植筋的问题。
External prestressing tendon steering combined frame structure
一种体外预应力束转向组合式框架结构
YANG FAN (author) / ZHOU GONGJIAN (author) / CHU WENTAO (author) / GUAN JINXUAN (author) / TU MANMING (author) / ZHOU CHAOZHOU (author) / XIA GANG (author) / YAO FAHAI (author) / QIN YONGGANG (author) / LI HAN (author)
2023-07-18
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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