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A platform for research: civil engineering, architecture and urbanism
Prestressed concrete straight-line curved-surface prefabricated pipe pile and preparation method thereof
The invention discloses a prestressed concrete straight-line curved-surface prefabricated pipe pile. The pile is characterized in that the geometric shape of a uniparted hyperboloid-shaped prestressed reinforcement mesh is trumpet-shaped, the uniparted hyperboloid-shaped prestressed reinforcement mesh and annular stirrups form a reinforcement cage, annular steel plates are arranged at the two ends of the uniparted hyperboloid-shaped prestressed reinforcement mesh, the reinforcement cage is placed in a mold, a pre-tensioning method jack tensions the uniparted hyperboloid-shaped prestressed reinforcement mesh, the prestressed reinforcement mesh is temporarily anchored on the mold, molding is achieved by a centrifugal manufacturing process, steam curing is carried out, the prestressed reinforcement mesh is released after concrete is hardened, and a finished product of the straight-line curved-surface prefabricated pipe pile is manufactured. The trumpet-shaped straight-line curved-surface prefabricated pipe pile is small in extrusion effect, convenient to sink and small in deep soil disturbance; and a trumpet-shaped expansion head can compact and reinforce surface soil, the interaction between the pile and a soil body is exerted, a composite foundation is formed, and the trumpet-shaped straight-line curved-surface pipe pile can greatly improve the horizontal bearing capacity of a pile foundation. The straight-line curved-surface prefabricated pipe pile is excellent in stress performance, easy and convenient to manufacture and capable of being industrially produced on a large scale.
一种预应力混凝土的直纹曲面预制管桩，单叶双曲面状预应力钢筋网的几何外形是喇叭状，单叶双曲面状预应力钢筋网和环形箍筋两者形成钢筋笼，单叶双曲面状预应力钢筋网的两端设置环形钢板，钢筋笼放入模具，先张法千斤顶张拉单叶双曲面状预应力钢筋网，预应力钢筋网临时锚固于模具上，离心法制作工艺成型，蒸汽养护，等待混凝土结硬后，放张预应力钢筋网，可制得直纹曲面预制管桩成品。喇叭状直纹曲面预制管桩挤上效应小，沉桩方便，深层土体扰动小；喇叭状扩大头可挤密加固表层土，发挥桩与土体间的相互作用，形成复合地基，喇叭状直纹曲面管桩可大幅度提高桩基础的水平承载力。直纹曲面预制管桩受力性能优良，制作简便，可工业化大批量生产。
Prestressed concrete straight-line curved-surface prefabricated pipe pile and preparation method thereof
The invention discloses a prestressed concrete straight-line curved-surface prefabricated pipe pile. The pile is characterized in that the geometric shape of a uniparted hyperboloid-shaped prestressed reinforcement mesh is trumpet-shaped, the uniparted hyperboloid-shaped prestressed reinforcement mesh and annular stirrups form a reinforcement cage, annular steel plates are arranged at the two ends of the uniparted hyperboloid-shaped prestressed reinforcement mesh, the reinforcement cage is placed in a mold, a pre-tensioning method jack tensions the uniparted hyperboloid-shaped prestressed reinforcement mesh, the prestressed reinforcement mesh is temporarily anchored on the mold, molding is achieved by a centrifugal manufacturing process, steam curing is carried out, the prestressed reinforcement mesh is released after concrete is hardened, and a finished product of the straight-line curved-surface prefabricated pipe pile is manufactured. The trumpet-shaped straight-line curved-surface prefabricated pipe pile is small in extrusion effect, convenient to sink and small in deep soil disturbance; and a trumpet-shaped expansion head can compact and reinforce surface soil, the interaction between the pile and a soil body is exerted, a composite foundation is formed, and the trumpet-shaped straight-line curved-surface pipe pile can greatly improve the horizontal bearing capacity of a pile foundation. The straight-line curved-surface prefabricated pipe pile is excellent in stress performance, easy and convenient to manufacture and capable of being industrially produced on a large scale.
一种预应力混凝土的直纹曲面预制管桩，单叶双曲面状预应力钢筋网的几何外形是喇叭状，单叶双曲面状预应力钢筋网和环形箍筋两者形成钢筋笼，单叶双曲面状预应力钢筋网的两端设置环形钢板，钢筋笼放入模具，先张法千斤顶张拉单叶双曲面状预应力钢筋网，预应力钢筋网临时锚固于模具上，离心法制作工艺成型，蒸汽养护，等待混凝土结硬后，放张预应力钢筋网，可制得直纹曲面预制管桩成品。喇叭状直纹曲面预制管桩挤上效应小，沉桩方便，深层土体扰动小；喇叭状扩大头可挤密加固表层土，发挥桩与土体间的相互作用，形成复合地基，喇叭状直纹曲面管桩可大幅度提高桩基础的水平承载力。直纹曲面预制管桩受力性能优良，制作简便，可工业化大批量生产。
Prestressed concrete straight-line curved-surface prefabricated pipe pile and preparation method thereof
预应力混凝土的直纹曲面预制管桩及其制备方法
SHA ZHENFANG (author) / JIANG KAI (author) / HU DAN (author)
2021-10-08
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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