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Inclined tower tip steel-concrete combined section construction method
The inclined tower tip steel-concrete combined section construction method comprises the following steps: implementing a steel-concrete combined section horizontal limiting measure of an embedded steel tower tip; after pouring of the tail section of a concrete tower column is completed, the design strength is achieved, and roughening is conducted, hosting the steel tower tip to enable a partitionplate at the steel-concrete combined section of the steel tower tip to be tightly attached to a limiting stop block, binding ordinary reinforcing steel bars in a steel-concrete combined section box chamber, and extruding a whole bundle of extrusion hot polyethylene steel strands; limiting the steel-concrete combined section of the steel tower tip in the vertical direction; conducting concrete pouring on the steel-concrete combined section; treating a top gap of the steel-concrete combined section; and after equal-strength treatment is finished, tensioning the whole bundle of extruded hot polyethylene steel strands to sigma con. According to the construction method, a main body structure can be utilized, and use of a temporary supporting structure is reduced; through a reasonable pouring sequence, the risk that internal structure cracks are generated by concrete of the steel-concrete combined section is reduced; through multiple times of post-grouting, the possibility of steel plate deformation, prestress loss and steel plate corrosion can be reduced, and structural safety and durability are guaranteed.
本发明公开了一种斜塔尖钢混结合段施工方法，包括以下步骤：实施预埋钢塔尖的钢混结合段水平限位措施；混凝土塔柱末段浇筑完成并达到设计强度且凿毛后，吊装钢塔尖使得钢塔尖钢混结合段部位隔板与限位挡块密贴，绑扎钢混结合段箱室内普通钢筋钢筋、整束挤压热聚乙烯钢绞线；对钢塔尖的钢混结合段进行竖直方向限位；钢混结合段混凝土浇筑；钢混结合段顶部空隙处理；等强结束，张拉整束挤压热聚乙烯钢绞线至σcon。本发明提供的施工方法能够利用主体结构，减少临时支撑结构的使用；通过合理的浇筑顺序，减少钢混结合段混凝土产生内部结构裂缝的风险；通过多次后注浆，能够降低钢板变形、预应力损失、钢板锈蚀的可能性，保证结构安全和耐久性。
Inclined tower tip steel-concrete combined section construction method
The inclined tower tip steel-concrete combined section construction method comprises the following steps: implementing a steel-concrete combined section horizontal limiting measure of an embedded steel tower tip; after pouring of the tail section of a concrete tower column is completed, the design strength is achieved, and roughening is conducted, hosting the steel tower tip to enable a partitionplate at the steel-concrete combined section of the steel tower tip to be tightly attached to a limiting stop block, binding ordinary reinforcing steel bars in a steel-concrete combined section box chamber, and extruding a whole bundle of extrusion hot polyethylene steel strands; limiting the steel-concrete combined section of the steel tower tip in the vertical direction; conducting concrete pouring on the steel-concrete combined section; treating a top gap of the steel-concrete combined section; and after equal-strength treatment is finished, tensioning the whole bundle of extruded hot polyethylene steel strands to sigma con. According to the construction method, a main body structure can be utilized, and use of a temporary supporting structure is reduced; through a reasonable pouring sequence, the risk that internal structure cracks are generated by concrete of the steel-concrete combined section is reduced; through multiple times of post-grouting, the possibility of steel plate deformation, prestress loss and steel plate corrosion can be reduced, and structural safety and durability are guaranteed.
本发明公开了一种斜塔尖钢混结合段施工方法，包括以下步骤：实施预埋钢塔尖的钢混结合段水平限位措施；混凝土塔柱末段浇筑完成并达到设计强度且凿毛后，吊装钢塔尖使得钢塔尖钢混结合段部位隔板与限位挡块密贴，绑扎钢混结合段箱室内普通钢筋钢筋、整束挤压热聚乙烯钢绞线；对钢塔尖的钢混结合段进行竖直方向限位；钢混结合段混凝土浇筑；钢混结合段顶部空隙处理；等强结束，张拉整束挤压热聚乙烯钢绞线至σcon。本发明提供的施工方法能够利用主体结构，减少临时支撑结构的使用；通过合理的浇筑顺序，减少钢混结合段混凝土产生内部结构裂缝的风险；通过多次后注浆，能够降低钢板变形、预应力损失、钢板锈蚀的可能性，保证结构安全和耐久性。
Inclined tower tip steel-concrete combined section construction method
一种斜塔尖钢混结合段施工方法
TANG MING (Autor:in) / PENG HAISONG (Autor:in) / SHANG ZHICHAO (Autor:in) / CHEN FAN (Autor:in) / CHEN LI (Autor:in) / TIAN YONG (Autor:in) / LI TINGYU (Autor:in)
08.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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