A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Large-span double-slope roof prestressed reinforcement tendon pull beam construction method
The invention discloses a large-span double-slope roof prestressed reinforcement tendon pull beam construction method. The large-span double-slope roof prestressed reinforcement tendon pull beam construction method comprises the following steps that unloading of prestressed reinforcements is carried out; prestressed reinforcement tendon anchorage section reinforcements are installed; the reinforcements are laid; tensioning is carried out; prestressed reinforcement tendon tensioning and stress measurement are carried out; davit reinforcements are installed; the prestressed reinforcements are coated with epoxy corrugated cloth; and concrete pouring and curing are carried out. The large-span double-slope roof structural design adopts a combination structure of a folding beam and a pull beam,the pull beam provided with prestressed reinforcement tendons resists horizontal thrust of the folding beam, and economic rationality is achieved. Lower-chord pull beam prestressed reinforcement tendon anchorage section concrete and roof folding beam concrete are together poured, and after pull beam prestressed reinforcement tendon tensioning is completed, the pull beam segment is coated with concrete and davit concrete and poured. Anchorage tensioning is not used, and the construction operation is convenient; and in the prestressed reinforcement tendon tensioning process, stress measurement adopts a DH3819 wireless static testing system, testing data are visualized, and the prestress is accurately built.
本发明公开了一种大跨度双坡式屋面预应力钢筋束拉梁施工方法，包括如下步骤：预应力钢筋下料→预应力钢筋束锚固段钢筋安装→钢筋铺设→张拉→预应力钢筋束张拉及应力监测→吊柱筋安装→预应力钢筋束外包环氧波纹布→混凝土浇筑及养护。本发明的大跨度双坡式屋面结构设计采取折梁与拉梁的组合结构,配置预应力钢筋束的拉梁抵抗折梁的水平推力，经济合理。下弦拉梁预应力钢筋束锚固段混凝土同屋面折梁混凝土一起浇筑，待拉梁预应力钢筋束张拉完成后,拉梁段外包混凝土及吊柱混凝土再行浇筑。本发明不使用锚具张拉，施工操作方便；预应力钢筋束张拉过程应力监测采用DH3819无线静态测试系统，试验数据直观，预应力建立准确。
Large-span double-slope roof prestressed reinforcement tendon pull beam construction method
The invention discloses a large-span double-slope roof prestressed reinforcement tendon pull beam construction method. The large-span double-slope roof prestressed reinforcement tendon pull beam construction method comprises the following steps that unloading of prestressed reinforcements is carried out; prestressed reinforcement tendon anchorage section reinforcements are installed; the reinforcements are laid; tensioning is carried out; prestressed reinforcement tendon tensioning and stress measurement are carried out; davit reinforcements are installed; the prestressed reinforcements are coated with epoxy corrugated cloth; and concrete pouring and curing are carried out. The large-span double-slope roof structural design adopts a combination structure of a folding beam and a pull beam,the pull beam provided with prestressed reinforcement tendons resists horizontal thrust of the folding beam, and economic rationality is achieved. Lower-chord pull beam prestressed reinforcement tendon anchorage section concrete and roof folding beam concrete are together poured, and after pull beam prestressed reinforcement tendon tensioning is completed, the pull beam segment is coated with concrete and davit concrete and poured. Anchorage tensioning is not used, and the construction operation is convenient; and in the prestressed reinforcement tendon tensioning process, stress measurement adopts a DH3819 wireless static testing system, testing data are visualized, and the prestress is accurately built.
本发明公开了一种大跨度双坡式屋面预应力钢筋束拉梁施工方法，包括如下步骤：预应力钢筋下料→预应力钢筋束锚固段钢筋安装→钢筋铺设→张拉→预应力钢筋束张拉及应力监测→吊柱筋安装→预应力钢筋束外包环氧波纹布→混凝土浇筑及养护。本发明的大跨度双坡式屋面结构设计采取折梁与拉梁的组合结构,配置预应力钢筋束的拉梁抵抗折梁的水平推力，经济合理。下弦拉梁预应力钢筋束锚固段混凝土同屋面折梁混凝土一起浇筑，待拉梁预应力钢筋束张拉完成后,拉梁段外包混凝土及吊柱混凝土再行浇筑。本发明不使用锚具张拉，施工操作方便；预应力钢筋束张拉过程应力监测采用DH3819无线静态测试系统，试验数据直观，预应力建立准确。
Large-span double-slope roof prestressed reinforcement tendon pull beam construction method
一种大跨度双坡式屋面预应力钢筋束拉梁施工方法
JIANG QUAN (author)
2020-08-11
Patent
Electronic Resource
Chinese
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