Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of super-long retard-bonded prestressed cast-in-place pile
The invention discloses a construction method of a super-long retard-bonded prestressed cast-in-place pile, which comprises the following steps of: arranging a prestressed steel strand in a full-length manner, arranging prestressed tendons in a range of 6.5 m above a pile bottom and 5 m below a pile top on the inner side of a reinforcement cage, arranging prestressed tendons in the middle section of a pile body on the outer side of a common reinforcement cage, and guiding the lowering of the prestressed steel strand by matching with a guide frame; the problem that construction is difficult when the prestressed tendons of the super-long retard-bonded prestressed cast-in-place pile are arranged on the inner side of the reinforcement cage is effectively solved, and compared with the mode that connectors are adopted for segmented manufacturing of the prestressed tendons, the construction method has the economic advantage, the construction period advantage and the environment-friendly advantage.
本发明公开了一种超长缓粘结预应力灌注桩施工方法，将预应力钢绞线通长设置，桩底以上6.5m、桩顶以下5m范围预应力筋布置于钢筋笼内侧、桩身中间段预应力筋布置与普通钢筋笼外侧，并配合导向架对预应力钢绞线的下放进行引导，有效解决了超长缓粘结预应力灌注桩预应力筋布置于钢筋笼内侧施工困难问难，相对于预应力筋分段制作采用连接器，此施工方法有着经济优势、工期优势、环保优势。
Construction method of super-long retard-bonded prestressed cast-in-place pile
The invention discloses a construction method of a super-long retard-bonded prestressed cast-in-place pile, which comprises the following steps of: arranging a prestressed steel strand in a full-length manner, arranging prestressed tendons in a range of 6.5 m above a pile bottom and 5 m below a pile top on the inner side of a reinforcement cage, arranging prestressed tendons in the middle section of a pile body on the outer side of a common reinforcement cage, and guiding the lowering of the prestressed steel strand by matching with a guide frame; the problem that construction is difficult when the prestressed tendons of the super-long retard-bonded prestressed cast-in-place pile are arranged on the inner side of the reinforcement cage is effectively solved, and compared with the mode that connectors are adopted for segmented manufacturing of the prestressed tendons, the construction method has the economic advantage, the construction period advantage and the environment-friendly advantage.
本发明公开了一种超长缓粘结预应力灌注桩施工方法，将预应力钢绞线通长设置，桩底以上6.5m、桩顶以下5m范围预应力筋布置于钢筋笼内侧、桩身中间段预应力筋布置与普通钢筋笼外侧，并配合导向架对预应力钢绞线的下放进行引导，有效解决了超长缓粘结预应力灌注桩预应力筋布置于钢筋笼内侧施工困难问难，相对于预应力筋分段制作采用连接器，此施工方法有着经济优势、工期优势、环保优势。
Construction method of super-long retard-bonded prestressed cast-in-place pile
一种超长缓粘结预应力灌注桩施工方法
LI CONGCONG (Autor:in) / YUAN LONGBIN (Autor:in) / TANG MINGCHENG (Autor:in) / TANG LIANG (Autor:in) / ZHANG LELE (Autor:in) / YANG GAOYONG (Autor:in) / XU HONGQIAO (Autor:in)
30.08.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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