Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prestress construction method
The invention discloses a prestress construction method, which relates to the technical field of building construction, and comprises the following steps: S1, manufacturing and installing prestressed reinforcements, and pouring concrete after installation is completed; s2, after pouring is completed, the elongation value of the prestressed reinforcement on each beam and the prestress needing to be applied are calculated and determined; s3, when the strength of the poured concrete reaches a threshold value, prestressed steel bars start to be tensioned on each beam or multiple beams in batches; s4, after tensioning is completed, grouting is conducted on the corrugated pipe; and S5, after grouting is completed, prestressed reinforcement anchor sealing is conducted. By the adoption of the scheme, prestress can be controlled in batches, tensioning can be conducted, the prestress tensioned each time and the elongation value of the prestressed steel bars are controlled, the structure is good in crack resistance and high in rigidity, the durability of the structure is improved, and the construction period is shortened.
本发明公开了一种预应力施工方法，涉及建筑施工技术领域，包括以下步骤：S1：制作并安装预应力钢筋，安装完成后，浇筑混凝土；S2：浇筑完成后，计算并确定每根梁上的预应力钢筋伸长值和需要施加的预应力；S3：在浇筑混凝土强度达到阈值时，开始分批次在每根梁或者多根梁上张拉预应力钢筋；S4：在张拉完成后，对波纹管进行灌浆；S5：灌浆完成后，进行预应力钢筋封锚。采用本方案，能分批次控制预应力并进行张拉，控制每次张拉的预应力和预应力钢筋的伸长值，使结构抗裂性好，刚度大，增加了结构的耐久性，缩减了施工周期。
Prestress construction method
The invention discloses a prestress construction method, which relates to the technical field of building construction, and comprises the following steps: S1, manufacturing and installing prestressed reinforcements, and pouring concrete after installation is completed; s2, after pouring is completed, the elongation value of the prestressed reinforcement on each beam and the prestress needing to be applied are calculated and determined; s3, when the strength of the poured concrete reaches a threshold value, prestressed steel bars start to be tensioned on each beam or multiple beams in batches; s4, after tensioning is completed, grouting is conducted on the corrugated pipe; and S5, after grouting is completed, prestressed reinforcement anchor sealing is conducted. By the adoption of the scheme, prestress can be controlled in batches, tensioning can be conducted, the prestress tensioned each time and the elongation value of the prestressed steel bars are controlled, the structure is good in crack resistance and high in rigidity, the durability of the structure is improved, and the construction period is shortened.
本发明公开了一种预应力施工方法，涉及建筑施工技术领域，包括以下步骤：S1：制作并安装预应力钢筋，安装完成后，浇筑混凝土；S2：浇筑完成后，计算并确定每根梁上的预应力钢筋伸长值和需要施加的预应力；S3：在浇筑混凝土强度达到阈值时，开始分批次在每根梁或者多根梁上张拉预应力钢筋；S4：在张拉完成后，对波纹管进行灌浆；S5：灌浆完成后，进行预应力钢筋封锚。采用本方案，能分批次控制预应力并进行张拉，控制每次张拉的预应力和预应力钢筋的伸长值，使结构抗裂性好，刚度大，增加了结构的耐久性，缩减了施工周期。
Prestress construction method
一种预应力施工方法
ZHAO CHONGXIAN (Autor:in) / XIE YONG (Autor:in) / YUAN GANG (Autor:in) / XU YUE (Autor:in) / ZHOU JUN (Autor:in) / YUAN WENJUN (Autor:in)
10.05.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E04G
SCAFFOLDING
,
Baugerüste
Bridge prestress device and bridge prestress construction method
| Europäisches Patentamt | 2022