Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention provides a jointless abutment structure which comprises a girder, an abutment cap beam, a lapping plate, a tetrafluoro sliding plate, a stainless steel plate, an anchor bolt, bridge deck pavement and bridge deck continuous reinforced bars, wherein the girder and the lapping plate are supported on the abutment cap beam side by side; the bridge deck pavement is commonly laid on the girder and the lapping plate; the tetrafluoro sliding plate, the stainless steel sliding plate and the anchor bolt are arranged between the lapping plate and the abutment cap beam; the tetrafluoro sliding plate is fixed on the abutment cap beam; the anchor bolt is embedded in the abutment cap beam; the stainless steel plate is embedded in the lapping plate; a slotted hole along the bridge direction is formed in a position, corresponding to the anchor bolt, of the lapping plate; the anchor bolt is inserted into the slotted hole. According to the jointless abutment structure provided by the invention, expansion joints are omitted, so that a series of use and maintenance problems caused by an expansion and contraction device are solved; the jointless abutment structure is not limited from the bridge deck and a base form thereof and is wide in application range; the upper structure and the lower structure of the bridge are separated, and the structural stress is definite. When the abutment structure is adopted, an existing girder structure can be directly applied and no special handling is needed; particularly when the jointless abutment structure is used for reforming old bridges, the jointless abutment structure is simple and convenient for construction and low in expense.
The invention provides a jointless abutment structure which comprises a girder, an abutment cap beam, a lapping plate, a tetrafluoro sliding plate, a stainless steel plate, an anchor bolt, bridge deck pavement and bridge deck continuous reinforced bars, wherein the girder and the lapping plate are supported on the abutment cap beam side by side; the bridge deck pavement is commonly laid on the girder and the lapping plate; the tetrafluoro sliding plate, the stainless steel sliding plate and the anchor bolt are arranged between the lapping plate and the abutment cap beam; the tetrafluoro sliding plate is fixed on the abutment cap beam; the anchor bolt is embedded in the abutment cap beam; the stainless steel plate is embedded in the lapping plate; a slotted hole along the bridge direction is formed in a position, corresponding to the anchor bolt, of the lapping plate; the anchor bolt is inserted into the slotted hole. According to the jointless abutment structure provided by the invention, expansion joints are omitted, so that a series of use and maintenance problems caused by an expansion and contraction device are solved; the jointless abutment structure is not limited from the bridge deck and a base form thereof and is wide in application range; the upper structure and the lower structure of the bridge are separated, and the structural stress is definite. When the abutment structure is adopted, an existing girder structure can be directly applied and no special handling is needed; particularly when the jointless abutment structure is used for reforming old bridges, the jointless abutment structure is simple and convenient for construction and low in expense.
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