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Full precast concrete stair sliding connecting system and construction method thereof
The invention discloses a full precast concrete stair sliding connecting system. The full precast concrete stair sliding connecting system comprises an upper-layer laminated beam plate, a lower-layer laminated beam plate and a precast stair, wherein the upper-layer laminated beam plate and the lower-layer laminated beam plate serve as rest platforms, and the precast stair serves as steps. The upper-layer laminated beam plate comprises an upper-layer building surface layer, an upper-layer beam plate cast-in-situ layer and an upper-layer beam plate precast layer from top to bottom; the lower-layer laminated beam plate comprises a lower-layer building surface layer, a lower-layer beam plate cast-in-situ layer and a lower-layer beam plate precast layer from top to bottom; the top side end of the precast stair is connected with the upper-layer beam plate precast layer, and is in lap joint with rebars in the upper-layer beam plate cast-in-situ layer; the bottom surface end of the precast stair is placed on a teflon plate which is placed at a placement position on the top surface of the lower-layer beam plate cast-in-situ layer; the space between the bottom side end of the precast stair and the lower-layer building surface layer is filled with a polystyrene plate. Due to the fact that the mode of connection between the stair and a main body structure is changed, the lower section of the stair is completely separated from the overall structure, the mode that one end is hinged, and the other end is stressed in a sliding mode is formed, the rigidity of the stair is effectively reduced, distribution of shearing force of the stair is reduced, and seismic performance is improved.
Full precast concrete stair sliding connecting system and construction method thereof
The invention discloses a full precast concrete stair sliding connecting system. The full precast concrete stair sliding connecting system comprises an upper-layer laminated beam plate, a lower-layer laminated beam plate and a precast stair, wherein the upper-layer laminated beam plate and the lower-layer laminated beam plate serve as rest platforms, and the precast stair serves as steps. The upper-layer laminated beam plate comprises an upper-layer building surface layer, an upper-layer beam plate cast-in-situ layer and an upper-layer beam plate precast layer from top to bottom; the lower-layer laminated beam plate comprises a lower-layer building surface layer, a lower-layer beam plate cast-in-situ layer and a lower-layer beam plate precast layer from top to bottom; the top side end of the precast stair is connected with the upper-layer beam plate precast layer, and is in lap joint with rebars in the upper-layer beam plate cast-in-situ layer; the bottom surface end of the precast stair is placed on a teflon plate which is placed at a placement position on the top surface of the lower-layer beam plate cast-in-situ layer; the space between the bottom side end of the precast stair and the lower-layer building surface layer is filled with a polystyrene plate. Due to the fact that the mode of connection between the stair and a main body structure is changed, the lower section of the stair is completely separated from the overall structure, the mode that one end is hinged, and the other end is stressed in a sliding mode is formed, the rigidity of the stair is effectively reduced, distribution of shearing force of the stair is reduced, and seismic performance is improved.
Full precast concrete stair sliding connecting system and construction method thereof
JIANG JILONG (author) / CAO JUNJIE (author) / WANG BAOFENG (author)
2015-04-01
Patent
Electronic Resource
English
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