A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Extended bridge deck seamless bridge structure suitable for soft soil area and construction method thereof
The invention discloses a bridge deck extending seamless bridge structure suitable for a soft soil area. The bridge deck extending seamless bridge structure comprises a main beam, a bridge abutment, a sunken butt strap, a UHPC connecting plate, a reinforced pavement layer, a ground beam and precast piles. The main beams are simply supported on the supports, the adjacent main beams are connected through the UHPC connecting plates, and the main beams and the reinforced pavement layer are connected through the UHPC connecting plates. One side of the sunken approach slab is lapped on the back side of the bridge abutment, and the other side of the sunken approach slab is fixed on the ground beam supported by the pile foundation. The reinforced pavement layer comprises an expansion and shrinkage buffer area above the sunken transition slab and a fixed area above the ground beam; the expansion buffer area is provided with an expansion space through the saw kerf, and a sliding layer is arranged between the expansion buffer area and the sunken butt strap. According to the scheme, the bridge deck slab, the UHPC connecting plate and the reinforced pavement layer are connected into the integrated structure through the steel bar net rack, thermal expansion and cold contraction of a bridge are absorbed through the reinforced pavement layer, differential settlement of a bridge head is controlled through the sunken transition slab, and the structure is particularly suitable for soft soil areas. The invention further provides a construction method of the seamless bridge with the extended bridge floor suitable for the soft soil area, the construction difficulty is reduced, and the working performance is ensured.
一种适用软土地区的延伸桥面无缝桥梁结构，包括主梁、桥台、下沉式搭板、UHPC交接板、配筋路面层、地梁、预制桩。主梁简支于支座上，相邻主梁之间、主梁与配筋路面层之间由UHPC交接板连接。下沉式搭板一侧搭接于桥台背侧、另一侧固定于地梁，地梁由桩基础支撑。配筋路面层包括下沉式搭板上方的胀缩缓冲区和地梁上方的固定区；胀缩缓冲区由锯缝提供胀缩空间，其与下沉式搭板之间设有滑移层。上述方案将桥面板、UHPC交接板和配筋路面层由钢筋网架连接成一体式结构，通过配筋路面层吸收桥梁的热胀冷缩，通过下沉式搭板控制桥头的不均匀沉降，尤其适用于软土地区。本公开还提供一种适用软土地区的延伸桥面无缝桥施工方法，降低施工难度、确保工作性能。
Extended bridge deck seamless bridge structure suitable for soft soil area and construction method thereof
The invention discloses a bridge deck extending seamless bridge structure suitable for a soft soil area. The bridge deck extending seamless bridge structure comprises a main beam, a bridge abutment, a sunken butt strap, a UHPC connecting plate, a reinforced pavement layer, a ground beam and precast piles. The main beams are simply supported on the supports, the adjacent main beams are connected through the UHPC connecting plates, and the main beams and the reinforced pavement layer are connected through the UHPC connecting plates. One side of the sunken approach slab is lapped on the back side of the bridge abutment, and the other side of the sunken approach slab is fixed on the ground beam supported by the pile foundation. The reinforced pavement layer comprises an expansion and shrinkage buffer area above the sunken transition slab and a fixed area above the ground beam; the expansion buffer area is provided with an expansion space through the saw kerf, and a sliding layer is arranged between the expansion buffer area and the sunken butt strap. According to the scheme, the bridge deck slab, the UHPC connecting plate and the reinforced pavement layer are connected into the integrated structure through the steel bar net rack, thermal expansion and cold contraction of a bridge are absorbed through the reinforced pavement layer, differential settlement of a bridge head is controlled through the sunken transition slab, and the structure is particularly suitable for soft soil areas. The invention further provides a construction method of the seamless bridge with the extended bridge floor suitable for the soft soil area, the construction difficulty is reduced, and the working performance is ensured.
一种适用软土地区的延伸桥面无缝桥梁结构，包括主梁、桥台、下沉式搭板、UHPC交接板、配筋路面层、地梁、预制桩。主梁简支于支座上，相邻主梁之间、主梁与配筋路面层之间由UHPC交接板连接。下沉式搭板一侧搭接于桥台背侧、另一侧固定于地梁，地梁由桩基础支撑。配筋路面层包括下沉式搭板上方的胀缩缓冲区和地梁上方的固定区；胀缩缓冲区由锯缝提供胀缩空间，其与下沉式搭板之间设有滑移层。上述方案将桥面板、UHPC交接板和配筋路面层由钢筋网架连接成一体式结构，通过配筋路面层吸收桥梁的热胀冷缩，通过下沉式搭板控制桥头的不均匀沉降，尤其适用于软土地区。本公开还提供一种适用软土地区的延伸桥面无缝桥施工方法，降低施工难度、确保工作性能。
Extended bridge deck seamless bridge structure suitable for soft soil area and construction method thereof
一种适用软土地区的延伸桥面无缝桥梁结构及其施工方法
QIAN FASHENG (author) / DING YONG (author) / CHEN LONG (author) / SHI XINLEI (author) / ZHU QIWEN (author) / WANG LUJIE (author) / ZHOU JIAHUI (author)
2023-08-04
Patent
Electronic Resource
Chinese
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