Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Variable cross-section prestressed concrete pile
The invention discloses a variable cross-section prestressed concrete pile which comprises a plurality of sections of pile bodies connected through pile joints, each section of pile body is provided with a section increasing section larger than the section of the pile body in the length direction of the pile body, each pile joint comprises a pile hoop, a pile end plate and an end plate anchoring rib, and the pile hoops are arranged at the ends of the pile bodies in a sleeving mode; the outer ends of the pile hoops are connected with pile end plates, end plate anchoring ribs anchored with the pile end plates are arranged in the pile bodies, and the two sections of connected pile bodies are connected through the respective pile end plates; according to the variable-cross-section prestressed concrete pile, the local enlarging section is arranged on the pile body, and after the cross section is locally enlarged, the contact area between the side face of the pile and a soil body is increased, and the side friction resistance of the pile is improved. Compared with a common concrete pile, the bearing capacity is improved. And meanwhile, the pile with the locally-increased cross section has a certain compaction effect on a soil body below the variable cross section in the pile sinking process, the vertical bearing capacity of the pile is improved, and meanwhile sedimentation of the pile under the vertical load is reduced.
本发明公开了一种变截面预应力混凝土桩，包括多段通过桩接头连接的桩身，每段桩身上均沿桩身长度方向分布有比桩身截面大的截面增大段，桩接头包括桩套箍、桩端板和端板锚固筋，桩套箍套设于桩身的端部，桩套箍的外端则连接桩端板，桩身内设置有与桩端板锚接的端板锚固筋，两段相连接的桩身通过各自的桩端板连接；本发明中的变截面预应力混凝土桩，在桩身上设置局部增大段，局部扩大截面后，增加了桩侧面和土体的接触面积，提高了桩的侧摩阻力。相比普通的混凝土桩，承载能力得到了提高。同时局部增大截面桩在沉桩过程中对变截面处下方的土体有一定压实挤密的作用，在提高桩的竖向承载力的同时降低了桩在竖向荷载下的沉降。
Variable cross-section prestressed concrete pile
The invention discloses a variable cross-section prestressed concrete pile which comprises a plurality of sections of pile bodies connected through pile joints, each section of pile body is provided with a section increasing section larger than the section of the pile body in the length direction of the pile body, each pile joint comprises a pile hoop, a pile end plate and an end plate anchoring rib, and the pile hoops are arranged at the ends of the pile bodies in a sleeving mode; the outer ends of the pile hoops are connected with pile end plates, end plate anchoring ribs anchored with the pile end plates are arranged in the pile bodies, and the two sections of connected pile bodies are connected through the respective pile end plates; according to the variable-cross-section prestressed concrete pile, the local enlarging section is arranged on the pile body, and after the cross section is locally enlarged, the contact area between the side face of the pile and a soil body is increased, and the side friction resistance of the pile is improved. Compared with a common concrete pile, the bearing capacity is improved. And meanwhile, the pile with the locally-increased cross section has a certain compaction effect on a soil body below the variable cross section in the pile sinking process, the vertical bearing capacity of the pile is improved, and meanwhile sedimentation of the pile under the vertical load is reduced.
本发明公开了一种变截面预应力混凝土桩，包括多段通过桩接头连接的桩身，每段桩身上均沿桩身长度方向分布有比桩身截面大的截面增大段，桩接头包括桩套箍、桩端板和端板锚固筋，桩套箍套设于桩身的端部，桩套箍的外端则连接桩端板，桩身内设置有与桩端板锚接的端板锚固筋，两段相连接的桩身通过各自的桩端板连接；本发明中的变截面预应力混凝土桩，在桩身上设置局部增大段，局部扩大截面后，增加了桩侧面和土体的接触面积，提高了桩的侧摩阻力。相比普通的混凝土桩，承载能力得到了提高。同时局部增大截面桩在沉桩过程中对变截面处下方的土体有一定压实挤密的作用，在提高桩的竖向承载力的同时降低了桩在竖向荷载下的沉降。
Variable cross-section prestressed concrete pile
一种变截面预应力混凝土桩
LI SHIGE (Autor:in) / YANG HAO (Autor:in) / HE YONGFU (Autor:in) / CHEN BAILIN (Autor:in) / WANG HONG (Autor:in)
13.05.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
| Europäisches Patentamt | 2021
Hollow prestressed concrete pile
Engineering Index Backfile | 1954