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A platform for research: civil engineering, architecture and urbanism
Composite prestressed steel bar
The composite prestressed steel bar comprises a main body part capable of penetrating through a foundation structure and a fixing part used for fixing, the main body part comprises a tensioning section and an anchoring section, and the tensioning section and the anchoring section are connected into a whole; the tensioning section comprises a prestressed steel bar on the innermost layer, a pre-pouring grouting concrete layer is arranged outside the prestressed steel bar, a plastic corrugated sleeve is arranged outside the pre-pouring grouting concrete layer in a sleeving mode, a plastic smooth sleeve is arranged outside the plastic corrugated sleeve in a sleeving mode, and on-site grouting concrete is arranged outside the plastic smooth sleeve. And the fixing part is used for fixing the tensioned position of the prestressed steel bar. The supporting system for the weak surrounding rock is formed through the prestress steel bar technology, prestress can be applied at the primary stage of construction, timely supporting is provided for the surrounding rock, then through pressurization and tensioning of the supporting system, the stability of the supporting system is further enhanced, prestress can be rapidly applied, and prestress distribution can be adjusted in time; the construction efficiency is effectively improved and the construction period is shortened.
本发明公开了一种复合式预应力钢棒，包括能够穿行在地基结构中的主体部分及用于固定的固定部分，主体部分包括张拉段及锚固段，张拉段及锚固段连接为一个整体；张拉段包括最内层的预应力钢棒，预应力钢棒外部设有预浇筑灌浆混凝土层，预浇筑灌浆混凝土层外部套设有塑料波纹套管，塑料波纹套管外部套设有塑料光滑套管，塑料光滑套管外部为现场灌浆混凝土；固定部分用于固定预应力钢棒张拉后的位置。本发明通过预应力钢棒技术，形成针对软弱围岩的支护体系，能够在施工初级即施加预应力，为围岩提供及时支护，随后通过其的加压张拉，进一步增强支护体系的稳定性，能够快速的施加预应力及及时进行调整预应力分布，有效提升施工效率，缩短施工周期。
Composite prestressed steel bar
The composite prestressed steel bar comprises a main body part capable of penetrating through a foundation structure and a fixing part used for fixing, the main body part comprises a tensioning section and an anchoring section, and the tensioning section and the anchoring section are connected into a whole; the tensioning section comprises a prestressed steel bar on the innermost layer, a pre-pouring grouting concrete layer is arranged outside the prestressed steel bar, a plastic corrugated sleeve is arranged outside the pre-pouring grouting concrete layer in a sleeving mode, a plastic smooth sleeve is arranged outside the plastic corrugated sleeve in a sleeving mode, and on-site grouting concrete is arranged outside the plastic smooth sleeve. And the fixing part is used for fixing the tensioned position of the prestressed steel bar. The supporting system for the weak surrounding rock is formed through the prestress steel bar technology, prestress can be applied at the primary stage of construction, timely supporting is provided for the surrounding rock, then through pressurization and tensioning of the supporting system, the stability of the supporting system is further enhanced, prestress can be rapidly applied, and prestress distribution can be adjusted in time; the construction efficiency is effectively improved and the construction period is shortened.
本发明公开了一种复合式预应力钢棒，包括能够穿行在地基结构中的主体部分及用于固定的固定部分，主体部分包括张拉段及锚固段，张拉段及锚固段连接为一个整体；张拉段包括最内层的预应力钢棒，预应力钢棒外部设有预浇筑灌浆混凝土层，预浇筑灌浆混凝土层外部套设有塑料波纹套管，塑料波纹套管外部套设有塑料光滑套管，塑料光滑套管外部为现场灌浆混凝土；固定部分用于固定预应力钢棒张拉后的位置。本发明通过预应力钢棒技术，形成针对软弱围岩的支护体系，能够在施工初级即施加预应力，为围岩提供及时支护，随后通过其的加压张拉，进一步增强支护体系的稳定性，能够快速的施加预应力及及时进行调整预应力分布，有效提升施工效率，缩短施工周期。
Composite prestressed steel bar
一种复合式预应力钢棒
YANG XIAOHUA (author) / FU YADONG (author) / FU SHAOJUN (author) / HAN HONGWEI (author) / GUO HONG (author) / SHI HAIFENG (author) / AO GUOHUI (author) / ZHOU XIAO (author) / DAI QIANG (author) / LIU ZHIHUI (author)
2024-07-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Prestressed Steel-Concrete Composite Beams
| British Library Conference Proceedings | 1999