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A platform for research: civil engineering, architecture and urbanism
Semi-prefabricated pier with UHPC shell and inner and outer double-layer steel bars and construction method thereof
The invention discloses a semi-prefabricated bridge pier with UHPC shell inner and outer double-layer steel bars and a construction method thereof. The bridge pier comprises a prefabricated bridge pier shell; the prefabricated pier shell is formed by pouring UHPC materials, and a plurality of outer ring longitudinal steel bars and a plurality of outer ring annular stirrups are arranged in the shell wall. A plurality of inner-ring longitudinal steel bars and a plurality of inner-ring annular stirrups are arranged in the inner cavity; the outer-ring longitudinal steel bars and the inner-ring longitudinal steel bars extend downwards to be anchored on the bearing platform; inner ring reinforcing connection longitudinal steel bars are arranged in the bearing platform corresponding to the inner ring longitudinal steel bars, and connection reinforcing constraint stirrups are arranged in the bearing platform corresponding to the inner ring annular stirrups on the inner ring longitudinal steel bar anchors. During construction, firstly, the prefabricated pier shell is manufactured, and a template of a bearing platform is built; after the prefabricated pier shell is in place, steel reinforcement cages are arranged in the bearing platform and an inner cavity of the prefabricated pier shell; then the bearing platform is poured; and finally, concrete mortar is poured into the inner cavity. The bearing capacity of the pier is greatly improved, and the prefabricated pier shell can also be used as a formwork.
本发明公开了UHPC外壳内外双层钢筋的半预制桥墩及其建造方法，桥墩包括预制桥墩外壳；预制桥墩外壳采用UHPC材料浇筑形成，壳壁内设有若干外圈纵向钢筋和若干外圈环型箍筋；内部空腔设有若干内圈纵向钢筋和若干内圈环型箍筋；外圈纵向钢筋和内圈纵向钢筋均向下伸出锚固在承台；承台内对应内圈纵向钢筋均设有内圈加强连接纵向钢筋，对应内圈纵向钢筋锚上的内圈环型箍筋设有连接加强约束箍筋。建造时，先制作预制桥墩外壳，搭建承台的模板；预制桥墩外壳就位后，在承台内和在预制桥墩外壳的内部空腔设置钢筋笼；然后浇筑承台；最后在内部空腔内浇筑混凝土砂浆。本发明大幅提高了桥墩的承载能力，预制桥墩外壳还可作为模板使用。
Semi-prefabricated pier with UHPC shell and inner and outer double-layer steel bars and construction method thereof
The invention discloses a semi-prefabricated bridge pier with UHPC shell inner and outer double-layer steel bars and a construction method thereof. The bridge pier comprises a prefabricated bridge pier shell; the prefabricated pier shell is formed by pouring UHPC materials, and a plurality of outer ring longitudinal steel bars and a plurality of outer ring annular stirrups are arranged in the shell wall. A plurality of inner-ring longitudinal steel bars and a plurality of inner-ring annular stirrups are arranged in the inner cavity; the outer-ring longitudinal steel bars and the inner-ring longitudinal steel bars extend downwards to be anchored on the bearing platform; inner ring reinforcing connection longitudinal steel bars are arranged in the bearing platform corresponding to the inner ring longitudinal steel bars, and connection reinforcing constraint stirrups are arranged in the bearing platform corresponding to the inner ring annular stirrups on the inner ring longitudinal steel bar anchors. During construction, firstly, the prefabricated pier shell is manufactured, and a template of a bearing platform is built; after the prefabricated pier shell is in place, steel reinforcement cages are arranged in the bearing platform and an inner cavity of the prefabricated pier shell; then the bearing platform is poured; and finally, concrete mortar is poured into the inner cavity. The bearing capacity of the pier is greatly improved, and the prefabricated pier shell can also be used as a formwork.
本发明公开了UHPC外壳内外双层钢筋的半预制桥墩及其建造方法，桥墩包括预制桥墩外壳；预制桥墩外壳采用UHPC材料浇筑形成，壳壁内设有若干外圈纵向钢筋和若干外圈环型箍筋；内部空腔设有若干内圈纵向钢筋和若干内圈环型箍筋；外圈纵向钢筋和内圈纵向钢筋均向下伸出锚固在承台；承台内对应内圈纵向钢筋均设有内圈加强连接纵向钢筋，对应内圈纵向钢筋锚上的内圈环型箍筋设有连接加强约束箍筋。建造时，先制作预制桥墩外壳，搭建承台的模板；预制桥墩外壳就位后，在承台内和在预制桥墩外壳的内部空腔设置钢筋笼；然后浇筑承台；最后在内部空腔内浇筑混凝土砂浆。本发明大幅提高了桥墩的承载能力，预制桥墩外壳还可作为模板使用。
Semi-prefabricated pier with UHPC shell and inner and outer double-layer steel bars and construction method thereof
UHPC外壳内外双层钢筋的半预制桥墩及其建造方法
ZHANG TAO (author) / YAN XINGFEI (author) / ZHOU LIANG (author) / PENG JUN (author)
2022-01-14
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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