A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
UHPC (Ultra High Performance Concrete)-coated fabricated concrete pier combined connection structure and construction method
The invention discloses a UHPC (Ultra High Performance Concrete) externally-wrapped fabricated concrete pier combined connection structure and a construction method, the structure comprises a bottom foundation and a fabricated concrete pier, and further comprises an externally-wrapped steel plate arranged on the outer side of the bottom of the fabricated concrete pier, and the externally-wrapped steel plate is in force transmission connection with a main reinforcement in the fabricated concrete pier through a dowel bar; the steel anchor support is arranged on the outer side of the bottom of the outer wrapping steel plate, a steel bar is embedded, the lower end of the steel bar is anchored in the bottom foundation, and the upper end of the steel bar extends out of the bottom foundation and then is fixedly connected with the steel anchor support; the lower ends of the connecting steel bars are anchored in the bottom foundation, and the upper ends of the connecting steel bars extend out of the bottom foundation and then extend upwards; and the UHPC post-cast strip is cast on the outer side of the bottom of the outer wrapping steel plate and wraps the connecting rib, the dowel bar and the steel anchor bracket. The connecting structure and the construction method have the beneficial effects that the construction process is free of supporting, service is reliable under extreme and long-term loads, and the joint fatigue stress condition under the train load effect is improved.
本发明公开了一种外包UHPC的装配式混凝土桥墩组合连接结构及施工方法，结构包括底部基础和装配式混凝土桥墩，还包括外包钢板，设置在所述装配式混凝土桥墩底部外侧，外包钢板通过传力杆与装配式混凝土桥墩内部的主筋传力连接；钢锚支架，设置在所述外包钢板的底部外侧，预埋钢棒，其下端锚固在所述底部基础中，上端伸出所述底部基础后与所述钢锚支架固定连接；连接钢筋，其下端锚固在所述底部基础中，上端伸出所述底部基础后向上延伸；UHPC后浇带，浇筑在所述外包钢板底部外侧，并将所述连接筋、传力杆以及钢锚支架包覆。本发明连接结构及施工方法具有施工过程免支撑、极端及长期荷载下服役可靠，改善列车荷载作用下接缝疲劳受力状况。
UHPC (Ultra High Performance Concrete)-coated fabricated concrete pier combined connection structure and construction method
The invention discloses a UHPC (Ultra High Performance Concrete) externally-wrapped fabricated concrete pier combined connection structure and a construction method, the structure comprises a bottom foundation and a fabricated concrete pier, and further comprises an externally-wrapped steel plate arranged on the outer side of the bottom of the fabricated concrete pier, and the externally-wrapped steel plate is in force transmission connection with a main reinforcement in the fabricated concrete pier through a dowel bar; the steel anchor support is arranged on the outer side of the bottom of the outer wrapping steel plate, a steel bar is embedded, the lower end of the steel bar is anchored in the bottom foundation, and the upper end of the steel bar extends out of the bottom foundation and then is fixedly connected with the steel anchor support; the lower ends of the connecting steel bars are anchored in the bottom foundation, and the upper ends of the connecting steel bars extend out of the bottom foundation and then extend upwards; and the UHPC post-cast strip is cast on the outer side of the bottom of the outer wrapping steel plate and wraps the connecting rib, the dowel bar and the steel anchor bracket. The connecting structure and the construction method have the beneficial effects that the construction process is free of supporting, service is reliable under extreme and long-term loads, and the joint fatigue stress condition under the train load effect is improved.
本发明公开了一种外包UHPC的装配式混凝土桥墩组合连接结构及施工方法，结构包括底部基础和装配式混凝土桥墩，还包括外包钢板，设置在所述装配式混凝土桥墩底部外侧，外包钢板通过传力杆与装配式混凝土桥墩内部的主筋传力连接；钢锚支架，设置在所述外包钢板的底部外侧，预埋钢棒，其下端锚固在所述底部基础中，上端伸出所述底部基础后与所述钢锚支架固定连接；连接钢筋，其下端锚固在所述底部基础中，上端伸出所述底部基础后向上延伸；UHPC后浇带，浇筑在所述外包钢板底部外侧，并将所述连接筋、传力杆以及钢锚支架包覆。本发明连接结构及施工方法具有施工过程免支撑、极端及长期荷载下服役可靠，改善列车荷载作用下接缝疲劳受力状况。
UHPC (Ultra High Performance Concrete)-coated fabricated concrete pier combined connection structure and construction method
一种外包UHPC的装配式混凝土桥墩组合连接结构及施工方法
WANG JINGQUAN (author) / ZHOU KAI (author) / WANG ZHEN (author) / SU WEI (author) / ZHANG SHUAI (author)
2023-01-17
Patent
Electronic Resource
Chinese
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