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A platform for research: civil engineering, architecture and urbanism
UHPC prefabricated special-shaped pile and preparation method thereof
The invention discloses a UHPC prefabricated special-shaped pile. The pile comprises a pile body of a hollow cylindrical structure, wherein the pile body is a non-prestressed reinforced concrete pileformed by prefabricating a steel reinforcement framework and UHPC, steel fibers are added into the UHPC, and a plurality of annular force bearing discs used for enhancing the settlement resistance ofthe pile body are further integrally formed on the pile body in the axial direction at intervals; each force bearing disc is an annular convex body which is formed by two loaded inclined planes and afriction surface and has a section of a trapezoidal structure on the pile body, or each force bearing disc is an annular convex body which is formed by two loaded inclined planes and has a section ofa triangular structure on the pile body; and an inclination angle alpha between the lower loaded inclined plane in the two loaded inclined planes and the horizontal plane is 45 degrees. A preparationmethod of the UHPC prefabricated special-shaped pile is simple in process, traditional tensioning and releasing process links are not needed, and the problem that in the releasing process of a traditional process, a steel mold cannot follow pile body compression deformation and steel mold manufacturing is solved.
本发明公开了一种UHPC预制异型桩,包括空心圆柱形结构的桩身，桩身为由钢筋骨架和UHPC混凝土预制成型的非预应力钢筋混凝土桩，并且UHPC混凝土中添加有钢纤维，其桩身上还轴向间隔地一体成型多个用于增强桩身抗沉降能力的环形承力盘；承力盘为由两个受荷斜面和一个摩擦面成型在桩身上截面呈梯形结构的环形凸体，或承力盘为由两个受荷斜面成型在桩身上截面呈三角形结构的环形凸体；两个受荷斜面中处于下方的受荷斜面与水平面的倾角α为45°。本发明UHPC预制异型桩的制备方法工艺简单，无需传统的张拉与放张工艺环节，解决了传统工艺放张过程中钢模无法追随桩身压缩变形与钢模制造的难题。
UHPC prefabricated special-shaped pile and preparation method thereof
The invention discloses a UHPC prefabricated special-shaped pile. The pile comprises a pile body of a hollow cylindrical structure, wherein the pile body is a non-prestressed reinforced concrete pileformed by prefabricating a steel reinforcement framework and UHPC, steel fibers are added into the UHPC, and a plurality of annular force bearing discs used for enhancing the settlement resistance ofthe pile body are further integrally formed on the pile body in the axial direction at intervals; each force bearing disc is an annular convex body which is formed by two loaded inclined planes and afriction surface and has a section of a trapezoidal structure on the pile body, or each force bearing disc is an annular convex body which is formed by two loaded inclined planes and has a section ofa triangular structure on the pile body; and an inclination angle alpha between the lower loaded inclined plane in the two loaded inclined planes and the horizontal plane is 45 degrees. A preparationmethod of the UHPC prefabricated special-shaped pile is simple in process, traditional tensioning and releasing process links are not needed, and the problem that in the releasing process of a traditional process, a steel mold cannot follow pile body compression deformation and steel mold manufacturing is solved.
本发明公开了一种UHPC预制异型桩,包括空心圆柱形结构的桩身，桩身为由钢筋骨架和UHPC混凝土预制成型的非预应力钢筋混凝土桩，并且UHPC混凝土中添加有钢纤维，其桩身上还轴向间隔地一体成型多个用于增强桩身抗沉降能力的环形承力盘；承力盘为由两个受荷斜面和一个摩擦面成型在桩身上截面呈梯形结构的环形凸体，或承力盘为由两个受荷斜面成型在桩身上截面呈三角形结构的环形凸体；两个受荷斜面中处于下方的受荷斜面与水平面的倾角α为45°。本发明UHPC预制异型桩的制备方法工艺简单，无需传统的张拉与放张工艺环节，解决了传统工艺放张过程中钢模无法追随桩身压缩变形与钢模制造的难题。
UHPC prefabricated special-shaped pile and preparation method thereof
一种UHPC预制异型桩及其制备方法
CHEN KEWEI (author) / MING WEI (author) / ZHANG FANGFANG (author) / WANG MENGBO (author) / CAO WEIWEI (author)
2021-02-09
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
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