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A platform for research: civil engineering, architecture and urbanism
Multidirectional displacement bridge expansion joint structure and construction method
The invention provides a multidirectional displacement bridge expansion joint structure and a construction method. A supporting plate is arranged below a comb plate, a buffer rubber pad is arranged between the supporting plate and the comb plate, an anchoring plate is welded to the bottom of the supporting plate, and a vertical displacement rubber pad is arranged on concrete below a joint-crossingcomb plate; the comb plate and the supporting plate are mainly connected and fixed through mortise and tenon joint steel pins. According to the structure, instantaneous impact stress generated between the comb plate and concrete below the comb plate during vertical displacement of a bridge is avoided, the influence of temperature stress is reduced, and the maintenance rate, the maintenance difficulty and the maintenance cost of the expansion joint are reduced. During the construction, after the anchoring plate is welded and fixed with a beam body reinforcing steel bar, concrete of the expansion joint is poured firstly, then the buffer rubber pad and the vertical displacement rubber pad are laid, and the comb plate is installed, so that the error-tolerant rate in the construction process can be increased, and the concrete pouring quality is effectively controlled.
本发明提供一种多向变位桥梁伸缩缝结构及施工方法，在梳齿板下方设支撑板，支撑板与梳齿板间设缓冲橡胶垫，支撑板底部焊接锚固板，在跨缝梳齿板下方混凝土上设有竖向变位橡胶垫；梳齿板与支撑板间主要靠榫卯钢销连接固定。该结构避免了桥梁竖向位移时梳齿板和下方混凝土间产生瞬时冲击应力，并减小了温度应力的影响，降低伸缩缝维修率、维修难度和维修费用。施工时，将锚固板与梁体钢筋焊接固定后，先浇筑伸缩缝混凝土，然后铺设缓冲橡胶垫和竖向变位橡胶垫、安装梳齿板，能提高施工过程中的容错率，有效控制混凝土浇筑质量。
Multidirectional displacement bridge expansion joint structure and construction method
The invention provides a multidirectional displacement bridge expansion joint structure and a construction method. A supporting plate is arranged below a comb plate, a buffer rubber pad is arranged between the supporting plate and the comb plate, an anchoring plate is welded to the bottom of the supporting plate, and a vertical displacement rubber pad is arranged on concrete below a joint-crossingcomb plate; the comb plate and the supporting plate are mainly connected and fixed through mortise and tenon joint steel pins. According to the structure, instantaneous impact stress generated between the comb plate and concrete below the comb plate during vertical displacement of a bridge is avoided, the influence of temperature stress is reduced, and the maintenance rate, the maintenance difficulty and the maintenance cost of the expansion joint are reduced. During the construction, after the anchoring plate is welded and fixed with a beam body reinforcing steel bar, concrete of the expansion joint is poured firstly, then the buffer rubber pad and the vertical displacement rubber pad are laid, and the comb plate is installed, so that the error-tolerant rate in the construction process can be increased, and the concrete pouring quality is effectively controlled.
本发明提供一种多向变位桥梁伸缩缝结构及施工方法，在梳齿板下方设支撑板，支撑板与梳齿板间设缓冲橡胶垫，支撑板底部焊接锚固板，在跨缝梳齿板下方混凝土上设有竖向变位橡胶垫；梳齿板与支撑板间主要靠榫卯钢销连接固定。该结构避免了桥梁竖向位移时梳齿板和下方混凝土间产生瞬时冲击应力，并减小了温度应力的影响，降低伸缩缝维修率、维修难度和维修费用。施工时，将锚固板与梁体钢筋焊接固定后，先浇筑伸缩缝混凝土，然后铺设缓冲橡胶垫和竖向变位橡胶垫、安装梳齿板，能提高施工过程中的容错率，有效控制混凝土浇筑质量。
Multidirectional displacement bridge expansion joint structure and construction method
一种多向变位桥梁伸缩缝结构及施工方法
HE WENTAO (author) / DING ZHONGMING (author) / YING SHIMING (author) / TIAN LIANMIN (author) / LIAN YUANPING (author) / LYU LIXIAN (author) / WU JIANG (author)
2020-04-17
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Multidirectional displacement bridge expansion joint device
| European Patent Office | 2020
Multidirectional displacement bridge expansion joint device
| European Patent Office | 2020