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A platform for research: civil engineering, architecture and urbanism
Prestressed concrete continuous beam dismantling method
The invention relates to the technical field of bridge engineering, in particular to a prestressed concrete continuous beam dismantling method. The prestressed concrete continuous beam dismantling method comprises the following steps: dismantling an accessory structure: dismantling the accessory structure of a bridge floor corresponding to the prestressed concrete continuous beam; arranging a longitudinal steel beam: arranging the longitudinal steel beam at the position of the middle pier, and connecting the longitudinal steel beam with the prestressed concrete continuous beam; a support is arranged to support the side span of the prestressed concrete continuous beam, and the hanging basket is arranged at the midspan position of the midspan of the prestressed concrete continuous beam; a midspan beam section is dismantled, specifically, the prestressed concrete continuous beam at the midspan position of the midspan is cut and dismantled; the longitudinal steel beams are dismantled, the hanging basket is moved towards the middle pier, and the remaining beam sections continue to be cut in the direction from the midspan to the middle pier. According to the technical scheme provided by the invention, the problem that the bearing capacity of a bridge structure is easily weakened due to damage to the prestressing tendons during bridge cutting is relieved.
本发明涉及桥梁工程技术领域，尤其是涉及一种预应力混凝土连续梁拆除方法。预应力混凝土连续梁拆除方法包括：拆除附属结构：拆除预应力混凝土连续梁对应桥面的附属结构；设置纵向钢梁：在中墩位置处设置纵向钢梁，并使纵向钢梁与预应力混凝土连续梁连接；设置支架挂篮：设置支架支撑预应力混凝土连续梁的边跨，在预应力混凝土连续梁的中跨跨中位置处设置挂篮；拆除跨中梁段：切割拆除中跨跨中位置处的预应力混凝土连续梁；拆除剩余梁段：拆除纵向钢梁，并向中墩方向移动挂篮，由跨中至中墩的方向继续切割剩余梁段。本发明提供的技术方案缓解了切割桥梁时对预应力束的破坏易导致桥梁结构承载力削弱的问题。
Prestressed concrete continuous beam dismantling method
The invention relates to the technical field of bridge engineering, in particular to a prestressed concrete continuous beam dismantling method. The prestressed concrete continuous beam dismantling method comprises the following steps: dismantling an accessory structure: dismantling the accessory structure of a bridge floor corresponding to the prestressed concrete continuous beam; arranging a longitudinal steel beam: arranging the longitudinal steel beam at the position of the middle pier, and connecting the longitudinal steel beam with the prestressed concrete continuous beam; a support is arranged to support the side span of the prestressed concrete continuous beam, and the hanging basket is arranged at the midspan position of the midspan of the prestressed concrete continuous beam; a midspan beam section is dismantled, specifically, the prestressed concrete continuous beam at the midspan position of the midspan is cut and dismantled; the longitudinal steel beams are dismantled, the hanging basket is moved towards the middle pier, and the remaining beam sections continue to be cut in the direction from the midspan to the middle pier. According to the technical scheme provided by the invention, the problem that the bearing capacity of a bridge structure is easily weakened due to damage to the prestressing tendons during bridge cutting is relieved.
本发明涉及桥梁工程技术领域，尤其是涉及一种预应力混凝土连续梁拆除方法。预应力混凝土连续梁拆除方法包括：拆除附属结构：拆除预应力混凝土连续梁对应桥面的附属结构；设置纵向钢梁：在中墩位置处设置纵向钢梁，并使纵向钢梁与预应力混凝土连续梁连接；设置支架挂篮：设置支架支撑预应力混凝土连续梁的边跨，在预应力混凝土连续梁的中跨跨中位置处设置挂篮；拆除跨中梁段：切割拆除中跨跨中位置处的预应力混凝土连续梁；拆除剩余梁段：拆除纵向钢梁，并向中墩方向移动挂篮，由跨中至中墩的方向继续切割剩余梁段。本发明提供的技术方案缓解了切割桥梁时对预应力束的破坏易导致桥梁结构承载力削弱的问题。
Prestressed concrete continuous beam dismantling method
预应力混凝土连续梁拆除方法
QIU FAN (author) / DOU XIANTAO (author) / QIAN ZHEN (author) / MA DEYI (author)
2023-06-23
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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