A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Plastic hinge-replaceable self-resetting prefabricated assembled concrete-filled steel tube pier node connecting structure and method thereof
The invention relates to the field of bridge buildings, and particularly discloses a plastic hinge-replaceable self-resetting prefabricated assembled concrete-filled steel tube pier node connecting structure which comprises a concrete-filled steel tube upper section, a concrete-filled steel tube bottom section and a foundation platform, a first outer sleeve steel pipe is fixed to the bottom of the concrete-filled steel tube upper section, and a second outer sleeve steel pipe and a third outer sleeve steel pipe are fixed to the top and the bottom of the concrete-filled steel tube bottom section respectively; the first outer sleeve steel pipe and the second outer sleeve steel pipe are connected through a first high-strength bolt; the third outer sleeve steel pipe is connected with the foundation platform through a second high-strength bolt; prestressed tendons are fixed between the concrete-filled steel tube upper section and the foundation bearing platform; protective concrete is arranged at the bottom of the concrete-filled steel tube upper section and the peripheral side of the concrete-filled steel tube lower section; and the invention aims to solve the problems that the post-earthquake residual displacement of the pier based on the ductility design is large, the bearing capacity loss is serious, and the damaged plastic hinge area is difficult to repair.
本发明涉及桥梁建筑领域，具体公开了一种可更换塑性铰的自复位预制拼装钢管混凝土桥墩节点连接结构，包括钢管混凝土上部节段、钢管混凝土底部节段、基础承台；所述钢管混凝土上部节段底部固定有第一外套钢管，所述钢管混凝土底部节段的顶部和底部分别固定有第二外套钢管和第三外套钢管；所述第一外套钢管与第二外套钢管之间通过第一高强螺栓连接；所述第三外套钢管与基础承台之间通过第二高强螺栓连接；所述钢管混凝土上部节段与基础承台之间固定有预应力筋；所述钢管混凝土上部节段底部与钢管混凝土下部节段周侧设置有防护混凝土；本发明意在解决基于延性设计的桥墩震后残余位移大，承载力损失严重，塑性铰区损伤不易修复的问题。
Plastic hinge-replaceable self-resetting prefabricated assembled concrete-filled steel tube pier node connecting structure and method thereof
The invention relates to the field of bridge buildings, and particularly discloses a plastic hinge-replaceable self-resetting prefabricated assembled concrete-filled steel tube pier node connecting structure which comprises a concrete-filled steel tube upper section, a concrete-filled steel tube bottom section and a foundation platform, a first outer sleeve steel pipe is fixed to the bottom of the concrete-filled steel tube upper section, and a second outer sleeve steel pipe and a third outer sleeve steel pipe are fixed to the top and the bottom of the concrete-filled steel tube bottom section respectively; the first outer sleeve steel pipe and the second outer sleeve steel pipe are connected through a first high-strength bolt; the third outer sleeve steel pipe is connected with the foundation platform through a second high-strength bolt; prestressed tendons are fixed between the concrete-filled steel tube upper section and the foundation bearing platform; protective concrete is arranged at the bottom of the concrete-filled steel tube upper section and the peripheral side of the concrete-filled steel tube lower section; and the invention aims to solve the problems that the post-earthquake residual displacement of the pier based on the ductility design is large, the bearing capacity loss is serious, and the damaged plastic hinge area is difficult to repair.
本发明涉及桥梁建筑领域，具体公开了一种可更换塑性铰的自复位预制拼装钢管混凝土桥墩节点连接结构，包括钢管混凝土上部节段、钢管混凝土底部节段、基础承台；所述钢管混凝土上部节段底部固定有第一外套钢管，所述钢管混凝土底部节段的顶部和底部分别固定有第二外套钢管和第三外套钢管；所述第一外套钢管与第二外套钢管之间通过第一高强螺栓连接；所述第三外套钢管与基础承台之间通过第二高强螺栓连接；所述钢管混凝土上部节段与基础承台之间固定有预应力筋；所述钢管混凝土上部节段底部与钢管混凝土下部节段周侧设置有防护混凝土；本发明意在解决基于延性设计的桥墩震后残余位移大，承载力损失严重，塑性铰区损伤不易修复的问题。
Plastic hinge-replaceable self-resetting prefabricated assembled concrete-filled steel tube pier node connecting structure and method thereof
一种可更换塑性铰的自复位预制拼装钢管混凝土桥墩节点连接结构及其作法
ZHANG GUANHUA (author) / SONG CHENGZHE (author) / LIU XINLIANG (author) / JIA JUNFENG (author) / ZHANG XIANGYANG (author) / XU KUN (author)
2021-11-02
Patent
Electronic Resource
Chinese
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