Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Steel pipe prestress steel strand high-altitude pipe penetrating construction method
The invention relates to a steel pipe prestress steel strand high-altitude pipe penetrating construction method. The method comprises the following steps that a steel strand bundle is provided and divided into a middle part and two end parts in the length direction; before a net rack is lifted, an initial steel sleeve is arranged in an initial lower chord pipe, the steel strand bundle penetrates through the initial steel sleeve, and the two end parts penetrate out; the net rack is lifted to the designed elevation; and the outer sides of the two end parts of the steel strand bundle are sequentially sleeved with a continuous connection steel sleeve and a continuous connection lower chord pipe, the continuous connection steel sleeve and the initial steel sleeve are welded and fixed, and the continuous connection lower chord pipe and the initial lower chord pipe are welded and fixed. The construction characteristics of the lifting type net rack are matched, the pipe penetrating construction procedure of steel strands is optimized, the burning loss of the steel strands caused by welding of the lower chord pipes is avoided, and the defect that existing structures on the two sides of thenet rack cannot be bypassed in the net rack lifting process is overcome.
本发明涉及一种钢管预应力钢绞线高空穿管施工方法，包括如下步骤：提供钢绞线束，将该钢绞线束沿长度方向分成中部和两端部；在提升网架前，于初始下弦管内设置初始钢套管，将该钢绞线束穿设于该初始钢套管并使两端部穿出；将该网架提升至设计标高；于该钢绞线束的两该端部的外侧依次套设续接钢套管和续接下弦管，并将该续接钢套管与该初始钢套管焊接固定，将该续接下弦管与该初始下弦管焊接固定。本发明配合了提升式网架的施工特点，优化了钢绞线的穿管施工工序，既避免了钢绞线因下弦管焊接时造成的烧损，又避免了在网架提升过程中无法绕开网架两侧的既有结构的弊端。
Steel pipe prestress steel strand high-altitude pipe penetrating construction method
The invention relates to a steel pipe prestress steel strand high-altitude pipe penetrating construction method. The method comprises the following steps that a steel strand bundle is provided and divided into a middle part and two end parts in the length direction; before a net rack is lifted, an initial steel sleeve is arranged in an initial lower chord pipe, the steel strand bundle penetrates through the initial steel sleeve, and the two end parts penetrate out; the net rack is lifted to the designed elevation; and the outer sides of the two end parts of the steel strand bundle are sequentially sleeved with a continuous connection steel sleeve and a continuous connection lower chord pipe, the continuous connection steel sleeve and the initial steel sleeve are welded and fixed, and the continuous connection lower chord pipe and the initial lower chord pipe are welded and fixed. The construction characteristics of the lifting type net rack are matched, the pipe penetrating construction procedure of steel strands is optimized, the burning loss of the steel strands caused by welding of the lower chord pipes is avoided, and the defect that existing structures on the two sides of thenet rack cannot be bypassed in the net rack lifting process is overcome.
本发明涉及一种钢管预应力钢绞线高空穿管施工方法，包括如下步骤：提供钢绞线束，将该钢绞线束沿长度方向分成中部和两端部；在提升网架前，于初始下弦管内设置初始钢套管，将该钢绞线束穿设于该初始钢套管并使两端部穿出；将该网架提升至设计标高；于该钢绞线束的两该端部的外侧依次套设续接钢套管和续接下弦管，并将该续接钢套管与该初始钢套管焊接固定，将该续接下弦管与该初始下弦管焊接固定。本发明配合了提升式网架的施工特点，优化了钢绞线的穿管施工工序，既避免了钢绞线因下弦管焊接时造成的烧损，又避免了在网架提升过程中无法绕开网架两侧的既有结构的弊端。
Steel pipe prestress steel strand high-altitude pipe penetrating construction method
钢管预应力钢绞线高空穿管施工方法
LI ZHAO (Autor:in) / CHEN BO (Autor:in) / SHEN YU (Autor:in) / WANG XIAOLI (Autor:in) / CHENG YINHANG (Autor:in) / LIU CHUANG (Autor:in) / LUO HAO (Autor:in) / XIONG XUNCHANG (Autor:in)
18.12.2020
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2021
Steel strand penetrating device for prestress tensioning and using method thereof
| Europäisches Patentamt | 2024