Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Post-tensioning method prestress segmented joint structure and segmented tensioning construction method
The invention provides a post-tensioning method prestress segmented joint structure and a segmented tensioning construction method, and belongs to the technical field of building construction. The construction method comprises the steps that a construction plane is divided into a plurality of water flowing sections; a concrete beam is poured, and a prestressed pipeline is preset in the concrete beam; prestressed tendons are arranged in the grouting holes in a penetrating mode, and the prestressed tendons are segmented at the boundary of the flowing water section; the prestressed tendons deviate towards the outer side of the concrete beam at the sections and extend, and anchorage devices and jacks are installed on the extension sections; the deviation directions of the prestressed tendons in the adjacent water flowing sections are different; a concrete block is poured on the concrete beam so as to wrap the extension section of the prestressed tendon; and after the strength of the concrete beam meets the design requirement, tensioning construction is conducted on the prestressed tendons. The prestressed tendons deviate from the extension section, collision during tensioning is avoided, the concrete blocks are poured on the concrete beam to wrap the extension section, the deviated prestressed tendons can be fixed respectively, and collision caused by shaking of the prestressed tendons is avoided.
本发明提供一种后张法预应力分段节点结构及分段张拉施工方法，属于建筑施工技术领域，施工方法包括将施工平面划分为多个流水段；浇筑混凝土梁，在混凝土梁中预设预应力管道；在注浆孔中穿设预应力筋，预应力筋在流水段的分界处进行分段；预应力筋在其分段处向混凝土梁的外侧偏移且延长，其延长段安装锚具和千斤顶；相邻流水段内的预应力筋的偏移方向不同；在混凝土梁上浇筑混凝土块，以将预应力筋的延长段包裹；待混凝土梁的强度达到设计要求后，对预应力筋进行张拉施工。预应力筋偏移及延长段，避免张拉时发生碰撞，且通过在混凝土梁上浇筑混凝土块俩包裹延长段，可以将偏移的预应力筋分别固定，避免其晃动导致碰撞。
Post-tensioning method prestress segmented joint structure and segmented tensioning construction method
The invention provides a post-tensioning method prestress segmented joint structure and a segmented tensioning construction method, and belongs to the technical field of building construction. The construction method comprises the steps that a construction plane is divided into a plurality of water flowing sections; a concrete beam is poured, and a prestressed pipeline is preset in the concrete beam; prestressed tendons are arranged in the grouting holes in a penetrating mode, and the prestressed tendons are segmented at the boundary of the flowing water section; the prestressed tendons deviate towards the outer side of the concrete beam at the sections and extend, and anchorage devices and jacks are installed on the extension sections; the deviation directions of the prestressed tendons in the adjacent water flowing sections are different; a concrete block is poured on the concrete beam so as to wrap the extension section of the prestressed tendon; and after the strength of the concrete beam meets the design requirement, tensioning construction is conducted on the prestressed tendons. The prestressed tendons deviate from the extension section, collision during tensioning is avoided, the concrete blocks are poured on the concrete beam to wrap the extension section, the deviated prestressed tendons can be fixed respectively, and collision caused by shaking of the prestressed tendons is avoided.
本发明提供一种后张法预应力分段节点结构及分段张拉施工方法，属于建筑施工技术领域，施工方法包括将施工平面划分为多个流水段；浇筑混凝土梁，在混凝土梁中预设预应力管道；在注浆孔中穿设预应力筋，预应力筋在流水段的分界处进行分段；预应力筋在其分段处向混凝土梁的外侧偏移且延长，其延长段安装锚具和千斤顶；相邻流水段内的预应力筋的偏移方向不同；在混凝土梁上浇筑混凝土块，以将预应力筋的延长段包裹；待混凝土梁的强度达到设计要求后，对预应力筋进行张拉施工。预应力筋偏移及延长段，避免张拉时发生碰撞，且通过在混凝土梁上浇筑混凝土块俩包裹延长段，可以将偏移的预应力筋分别固定，避免其晃动导致碰撞。
Post-tensioning method prestress segmented joint structure and segmented tensioning construction method
一种后张法预应力分段节点结构及分段张拉施工方法
MA ZIXUAN (Autor:in) / ZHANG XINHE (Autor:in) / WAN JIAQI (Autor:in) / LIU ZHIGUO (Autor:in) / WANG LEI (Autor:in) / LI JINGSHU (Autor:in) / WANG XUANWEI (Autor:in) / FAN SHIHAO (Autor:in)
19.07.2024
Patent
Elektronische Ressource
Chinesisch
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