A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Angle beam prestressed reinforcement tensioning method
The invention relates to an angle beam prestressed reinforcement tensioning method. A prefabricated steel box beam is erected on a scaffold and a vertical reinforcement of a second mounting seat, the scaffold and the vertical reinforcement share the weight of the steel box beam, and two tensioning reinforcements are mounted on a first mounting seat and the second mounting seat of the steel box beam correspondingly. When two jacks stretch a prestressed reinforcement, the steel box beam can provide horizontal acting force for the two jacks, and the acting force applied to the steel box beam by the two jacks is offset. The steel box beam serves as a supporting piece and provides supporting force for the two jacks at the same time, thus supporting points are provided for the jacks, and the mode of scaffold fixing is replaced, so that the probability of deformation and ring damage of supporting members such as the scaffold during prestressed reinforcement tensioning is decreased advantageously.
本申请涉及一种角梁预应力钢筋张拉方法，将预制好钢箱梁架设在脚手架以及第二安装座的竖钢筋上，脚手架与竖钢筋为共同分担钢箱梁的重量，并分别将两个张拉筋安装在钢箱梁的第一安装座以及第二安装座上，当两个千斤顶对预应力钢筋进行拉伸时，钢箱梁可为两个千斤顶提供水平方向的作用力，且两个千斤顶分别施加在钢箱梁上的作用力相互抵消，通过将钢箱梁作为支撑件同时为两个千斤顶提供支撑力，从而为千斤顶提供了支点，进而代替用脚手架固定的方式，有利于降低脚手架等支撑构件在张拉预应力钢筋时发生变形损环的概率。
Angle beam prestressed reinforcement tensioning method
The invention relates to an angle beam prestressed reinforcement tensioning method. A prefabricated steel box beam is erected on a scaffold and a vertical reinforcement of a second mounting seat, the scaffold and the vertical reinforcement share the weight of the steel box beam, and two tensioning reinforcements are mounted on a first mounting seat and the second mounting seat of the steel box beam correspondingly. When two jacks stretch a prestressed reinforcement, the steel box beam can provide horizontal acting force for the two jacks, and the acting force applied to the steel box beam by the two jacks is offset. The steel box beam serves as a supporting piece and provides supporting force for the two jacks at the same time, thus supporting points are provided for the jacks, and the mode of scaffold fixing is replaced, so that the probability of deformation and ring damage of supporting members such as the scaffold during prestressed reinforcement tensioning is decreased advantageously.
本申请涉及一种角梁预应力钢筋张拉方法，将预制好钢箱梁架设在脚手架以及第二安装座的竖钢筋上，脚手架与竖钢筋为共同分担钢箱梁的重量，并分别将两个张拉筋安装在钢箱梁的第一安装座以及第二安装座上，当两个千斤顶对预应力钢筋进行拉伸时，钢箱梁可为两个千斤顶提供水平方向的作用力，且两个千斤顶分别施加在钢箱梁上的作用力相互抵消，通过将钢箱梁作为支撑件同时为两个千斤顶提供支撑力，从而为千斤顶提供了支点，进而代替用脚手架固定的方式，有利于降低脚手架等支撑构件在张拉预应力钢筋时发生变形损环的概率。
Angle beam prestressed reinforcement tensioning method
一种角梁预应力钢筋张拉方法
ZHU JIANCHUN (author) / SUN ZHENYUE (author) / YAO RENLONG (author)
2021-06-11
Patent
Electronic Resource
Chinese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
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