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A platform for research: civil engineering, architecture and urbanism
Carbon fiber cloth composite concrete bridge deck seamless expansion joint
The invention discloses a carbon fiber cloth composite concrete bridge deck seamless expansion joint. Concrete bridge deck slabs are arranged below an asphalt paving layer; the concrete bridge deck slabs are arranged on the two sides of a groove; the lower ends of steel bar embedded parts are arranged in the concrete bridge deck slabs; the upper ends of the steel bar embedded parts are arranged inthe asphalt paving layer; the steel bar embedded parts comprise a left steel bar embedded part and a right steel bar embedded part; the steel plate is arranged between the left steel bar embedded part and the right steel bar embedded part, the steel plate is arranged above the groove, the U-shaped grooves are bilaterally symmetrical along two sides of the groove, PAN-based carbon fiber cloth is wound on the left steel bar embedded part and the right steel bar embedded part, and the rest parts outside the groove are expansion joint fillers. According to the structure construction method for enhancing the anti-reflection crack performance of the bridge seamless expansion joint starting from the source of crack generation, the high-elasticity high-modulus fiber cloth is used for bearing thetransverse tensile stress of the seamless expansion joint, generation and expansion of reflection cracks are prevented, and then reflection cracks of an additionally-laid asphalt surface layer are reduced or prevented.
本发明公开了一种碳纤维布复合型混凝土桥面无缝伸缩缝，混凝土桥面板设于沥青加铺层的下方，混凝土桥面板设于沟槽两侧，钢筋预埋件下端设于混凝土桥面板内，钢筋预埋件上端设于沥青加铺层内，钢筋预埋件包括左钢筋预埋件与右钢筋预埋件，钢板设于左钢筋预埋件与右钢筋预埋件之间，钢板设于沟槽上方，U型凹槽设有多组，U型凹槽沿沟槽两侧左右对称，PAN基碳纤维布缠绕在左钢筋预埋件与右钢筋预埋件上，沟槽外其余部分均为伸缩缝填充料。本发明从裂缝产生的根源着手一种增强桥梁无缝伸缩缝抗反射裂缝性能的结构构造方法，通过高弹高模纤维布承载无缝伸缩缝横向拉应力，预防反射裂缝的产生和扩展，进而减少或阻止加铺沥青面层反射裂缝的出现。
Carbon fiber cloth composite concrete bridge deck seamless expansion joint
The invention discloses a carbon fiber cloth composite concrete bridge deck seamless expansion joint. Concrete bridge deck slabs are arranged below an asphalt paving layer; the concrete bridge deck slabs are arranged on the two sides of a groove; the lower ends of steel bar embedded parts are arranged in the concrete bridge deck slabs; the upper ends of the steel bar embedded parts are arranged inthe asphalt paving layer; the steel bar embedded parts comprise a left steel bar embedded part and a right steel bar embedded part; the steel plate is arranged between the left steel bar embedded part and the right steel bar embedded part, the steel plate is arranged above the groove, the U-shaped grooves are bilaterally symmetrical along two sides of the groove, PAN-based carbon fiber cloth is wound on the left steel bar embedded part and the right steel bar embedded part, and the rest parts outside the groove are expansion joint fillers. According to the structure construction method for enhancing the anti-reflection crack performance of the bridge seamless expansion joint starting from the source of crack generation, the high-elasticity high-modulus fiber cloth is used for bearing thetransverse tensile stress of the seamless expansion joint, generation and expansion of reflection cracks are prevented, and then reflection cracks of an additionally-laid asphalt surface layer are reduced or prevented.
本发明公开了一种碳纤维布复合型混凝土桥面无缝伸缩缝，混凝土桥面板设于沥青加铺层的下方，混凝土桥面板设于沟槽两侧，钢筋预埋件下端设于混凝土桥面板内，钢筋预埋件上端设于沥青加铺层内，钢筋预埋件包括左钢筋预埋件与右钢筋预埋件，钢板设于左钢筋预埋件与右钢筋预埋件之间，钢板设于沟槽上方，U型凹槽设有多组，U型凹槽沿沟槽两侧左右对称，PAN基碳纤维布缠绕在左钢筋预埋件与右钢筋预埋件上，沟槽外其余部分均为伸缩缝填充料。本发明从裂缝产生的根源着手一种增强桥梁无缝伸缩缝抗反射裂缝性能的结构构造方法，通过高弹高模纤维布承载无缝伸缩缝横向拉应力，预防反射裂缝的产生和扩展，进而减少或阻止加铺沥青面层反射裂缝的出现。
Carbon fiber cloth composite concrete bridge deck seamless expansion joint
一种碳纤维布复合型混凝土桥面无缝伸缩缝
XU XUNQIAN (author) / YANG WEI (author) / XIANG HONGLIANG (author) / YANG XIAO (author) / GU YUWEN (author) / ZHOU JINGLING (author) / HONG JUNQING (author)
2020-04-28
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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