A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prestress lifting system for segment assembly pier
The invention discloses a prestress lifting system for a segment assembly pier, and belongs to the field of bridge design. When a segmental assembled bridge pier at the present stage is subjected to an earthquake load, transverse displacement or cracks are easily generated between two adjacent bridge piers along with swinging of the segmental assembled bridge pier, so that the rigidity and the bearing capacity of the whole structure are reduced. The device comprises a prestressed tendon, the prestressed tendon longitudinally penetrates through the multiple sections of bridge piers and is anchored, N prestressed lifting units are axially connected to the prestressed tendon in series, each prestressed lifting unit comprises at least one prestressed lifting elastic piece, a reserved clamping groove is formed in each section of bridge pier, and the prestressed lifting elastic pieces are axially clamped in the reserved clamping grooves. The prestress lifting elastic pieces are connected with the prestress tendons so as to bear part of tension stress borne by the prestress tendons. The prestressed reinforcement is mainly used for improving the prestress of the prestressed reinforcement and achieving the effects of vibration reduction and energy consumption.
一种节段拼装桥墩用预应力提升系统，属于桥梁设计领域。现阶段的节段拼装桥墩在受到地震载荷时，相邻两节桥墩之间随着节段拼装桥墩的摆动容易发生横向位移或产生裂缝，导致整体结构的刚度和承载能力下降。本发明包括预应力筋，预应力筋纵向贯穿于多段桥墩并锚固，预应力筋上轴向串联有N个预应力提升单元，每个预应力提升单元包括至少一根预应力提升弹性件，每段桥墩内开有预留卡槽，预应力提升弹性件轴向卡装在预留卡槽内，预应力提升弹性件与预应力筋连接，以承载预应力筋所受的部分张拉应力。本发明主要用于提升预应力筋的预应力和实现减振耗能的作用。
Prestress lifting system for segment assembly pier
The invention discloses a prestress lifting system for a segment assembly pier, and belongs to the field of bridge design. When a segmental assembled bridge pier at the present stage is subjected to an earthquake load, transverse displacement or cracks are easily generated between two adjacent bridge piers along with swinging of the segmental assembled bridge pier, so that the rigidity and the bearing capacity of the whole structure are reduced. The device comprises a prestressed tendon, the prestressed tendon longitudinally penetrates through the multiple sections of bridge piers and is anchored, N prestressed lifting units are axially connected to the prestressed tendon in series, each prestressed lifting unit comprises at least one prestressed lifting elastic piece, a reserved clamping groove is formed in each section of bridge pier, and the prestressed lifting elastic pieces are axially clamped in the reserved clamping grooves. The prestress lifting elastic pieces are connected with the prestress tendons so as to bear part of tension stress borne by the prestress tendons. The prestressed reinforcement is mainly used for improving the prestress of the prestressed reinforcement and achieving the effects of vibration reduction and energy consumption.
一种节段拼装桥墩用预应力提升系统，属于桥梁设计领域。现阶段的节段拼装桥墩在受到地震载荷时，相邻两节桥墩之间随着节段拼装桥墩的摆动容易发生横向位移或产生裂缝，导致整体结构的刚度和承载能力下降。本发明包括预应力筋，预应力筋纵向贯穿于多段桥墩并锚固，预应力筋上轴向串联有N个预应力提升单元，每个预应力提升单元包括至少一根预应力提升弹性件，每段桥墩内开有预留卡槽，预应力提升弹性件轴向卡装在预留卡槽内，预应力提升弹性件与预应力筋连接，以承载预应力筋所受的部分张拉应力。本发明主要用于提升预应力筋的预应力和实现减振耗能的作用。
Prestress lifting system for segment assembly pier
一种节段拼装桥墩用预应力提升系统
GONG YAFENG (author) / WU SHUZHENG (author) / SONG JIAXIANG (author) / ZHANG YUWEI (author) / BI HAIPENG (author) / HE XIN (author) / YANG HONGYU (author) / FENG WENXU (author) / WANG SHUAI (author)
2024-11-08
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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