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A platform for research: civil engineering, architecture and urbanism
Self-resetting socket and spigot type ECC mixed pier structure and splicing method thereof
The invention discloses a self-resetting socket and spigot type ECC mixed pier structure and a splicing method thereof. The upper section of the bridge pier is made of a common concrete material, and the lower section of the bridge pier is made of an ECC high-ductility fiber reinforced cement-based composite material; prestressed tendon pipelines are reserved in prefabricated square piers and a bearing platform, after the prefabricated square piers and the bearing platform are spliced, high-strength steel strands in the prestressed tendon pipelines are tensioned, and the high-strength steel strands serve as self-resetting components and are anchored to the upper end surfaces of the square piers and the lower end surface of the bearing platform through matched anchorage devices; a socket hole is formed in the upper end of the bearing platform, and the lower section of the prefabricated pier is an embedded section inserted into the socket hole; and a grouting hole is formed in the top surface of the bearing platform, a grout outlet hole is formed in the side surface of the inner wall of the socket hole, and the grouting hole and the grout outlet hole are connected through a grouting channel. And after the embedded section of the prefabricated square piers is inserted into the socket hole and positioned, a high-strength non-shrinkage cement grouting material is poured between the outer side of the embedded section and the inner wall of the socket hole through the grouting hole.
一种自复位承插式ECC混合桥墩的结构构造及其拼接方法。桥墩的上段为普通混凝土材料，下段为ECC高延性纤维增强水泥基复合材料；预制方墩和所述承台中预留有预应力筋管道，所述预制方墩与所述承台拼接完毕后，在张拉预应力筋管道内的高强钢绞线，所述高强钢绞线作为自复位构件，并使用配套的锚具锚固在所述方墩上端面和所述承台下端面；承台上端形成有承插孔，所述预制墩的下段为承插到所述承插孔内的埋置段；所述承台顶面设压浆孔，所述承插孔的内壁侧面设有出浆孔，灌浆孔和出浆孔之间通过压浆通道连接；在所述预制方墩埋置段插入承插孔并定位后，通过压浆孔往所述埋置段的外侧与所述承插孔内壁之间灌注高强无收缩水泥灌浆料。
Self-resetting socket and spigot type ECC mixed pier structure and splicing method thereof
The invention discloses a self-resetting socket and spigot type ECC mixed pier structure and a splicing method thereof. The upper section of the bridge pier is made of a common concrete material, and the lower section of the bridge pier is made of an ECC high-ductility fiber reinforced cement-based composite material; prestressed tendon pipelines are reserved in prefabricated square piers and a bearing platform, after the prefabricated square piers and the bearing platform are spliced, high-strength steel strands in the prestressed tendon pipelines are tensioned, and the high-strength steel strands serve as self-resetting components and are anchored to the upper end surfaces of the square piers and the lower end surface of the bearing platform through matched anchorage devices; a socket hole is formed in the upper end of the bearing platform, and the lower section of the prefabricated pier is an embedded section inserted into the socket hole; and a grouting hole is formed in the top surface of the bearing platform, a grout outlet hole is formed in the side surface of the inner wall of the socket hole, and the grouting hole and the grout outlet hole are connected through a grouting channel. And after the embedded section of the prefabricated square piers is inserted into the socket hole and positioned, a high-strength non-shrinkage cement grouting material is poured between the outer side of the embedded section and the inner wall of the socket hole through the grouting hole.
一种自复位承插式ECC混合桥墩的结构构造及其拼接方法。桥墩的上段为普通混凝土材料，下段为ECC高延性纤维增强水泥基复合材料；预制方墩和所述承台中预留有预应力筋管道，所述预制方墩与所述承台拼接完毕后，在张拉预应力筋管道内的高强钢绞线，所述高强钢绞线作为自复位构件，并使用配套的锚具锚固在所述方墩上端面和所述承台下端面；承台上端形成有承插孔，所述预制墩的下段为承插到所述承插孔内的埋置段；所述承台顶面设压浆孔，所述承插孔的内壁侧面设有出浆孔，灌浆孔和出浆孔之间通过压浆通道连接；在所述预制方墩埋置段插入承插孔并定位后，通过压浆孔往所述埋置段的外侧与所述承插孔内壁之间灌注高强无收缩水泥灌浆料。
Self-resetting socket and spigot type ECC mixed pier structure and splicing method thereof
一种自复位承插式ECC混合桥墩的结构构造及其拼接方法
XU YAN (author) / JIA YUNFAN (author) / ZENG ZENG (author) / TONG ZILIANG (author)
2021-06-08
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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