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Expanded-head anti-floating anchor rod prestress applying method based on PSB finish rolling deformed steel bars
The invention belongs to the technical field of PSB finish rolling deformed steel bar prestressed anti-floating anchor rods, and discloses an expanded-head anti-floating anchor rod prestress applying method based on PSB finish rolling deformed steel bars, which aims to solve the problem that the prestress required by expanded-head anti-floating anchor rods of the PSB finish rolling deformed steel bars cannot be met by adopting a center hole jack. The expanded-head anti-floating anchor rod prestress applying method comprises the following steps of (1) pouring a cushion layer; (2) sleeving prestress matched anchor plates and prestress matched anchor heads on the PSB finish rolling deformed steel bars; (3) applying prestress: (3.1) sleeving steel beams on the peripheries of the matched anchor heads; then connecting the matched anchor heads to the PSB finish rolling deformed steel bars; (3.2) placing a plurality of base plates on the cushion layer, respectively placing jacks on the base plates, enabling the upper ends of the jacks to make contact with the steel beams, and jacking the jacks to apply prestress to the PSB finish rolling deformed steel bars; and (3.3) locking the prestress matched anchor heads to complete the application of prestress.
本发明属于PSB精轧螺纹钢预应力抗浮锚杆技术领域，公开了一种基于PSB精轧螺纹钢的扩大头抗浮锚杆预应力施工方法，为了解决采用穿心千斤顶无法满足PSB精轧螺纹钢的扩大头抗浮锚杆所需预应力的问题。本发明包括：（1）浇筑垫层，（2）在PSB精轧螺纹钢上套设预应力配套锚板和预应力配套锚头；（3）施加预应力的步骤，包括：（3.1）在配套锚头的外围套设钢梁；然后将配套锚头连接在PSB精轧螺纹钢上；（3.2）在垫层上放置多个垫板，并且每一个垫板上放置一千斤顶，千斤顶的上端与钢梁相互接触，顶升千斤顶对PSB精轧螺纹钢进行施加预应力；（3.3）锁紧预应力配套锚头完成预应力的施加。
Expanded-head anti-floating anchor rod prestress applying method based on PSB finish rolling deformed steel bars
The invention belongs to the technical field of PSB finish rolling deformed steel bar prestressed anti-floating anchor rods, and discloses an expanded-head anti-floating anchor rod prestress applying method based on PSB finish rolling deformed steel bars, which aims to solve the problem that the prestress required by expanded-head anti-floating anchor rods of the PSB finish rolling deformed steel bars cannot be met by adopting a center hole jack. The expanded-head anti-floating anchor rod prestress applying method comprises the following steps of (1) pouring a cushion layer; (2) sleeving prestress matched anchor plates and prestress matched anchor heads on the PSB finish rolling deformed steel bars; (3) applying prestress: (3.1) sleeving steel beams on the peripheries of the matched anchor heads; then connecting the matched anchor heads to the PSB finish rolling deformed steel bars; (3.2) placing a plurality of base plates on the cushion layer, respectively placing jacks on the base plates, enabling the upper ends of the jacks to make contact with the steel beams, and jacking the jacks to apply prestress to the PSB finish rolling deformed steel bars; and (3.3) locking the prestress matched anchor heads to complete the application of prestress.
本发明属于PSB精轧螺纹钢预应力抗浮锚杆技术领域，公开了一种基于PSB精轧螺纹钢的扩大头抗浮锚杆预应力施工方法，为了解决采用穿心千斤顶无法满足PSB精轧螺纹钢的扩大头抗浮锚杆所需预应力的问题。本发明包括：（1）浇筑垫层，（2）在PSB精轧螺纹钢上套设预应力配套锚板和预应力配套锚头；（3）施加预应力的步骤，包括：（3.1）在配套锚头的外围套设钢梁；然后将配套锚头连接在PSB精轧螺纹钢上；（3.2）在垫层上放置多个垫板，并且每一个垫板上放置一千斤顶，千斤顶的上端与钢梁相互接触，顶升千斤顶对PSB精轧螺纹钢进行施加预应力；（3.3）锁紧预应力配套锚头完成预应力的施加。
Expanded-head anti-floating anchor rod prestress applying method based on PSB finish rolling deformed steel bars
基于PSB精轧螺纹钢的扩大头抗浮锚杆预应力施加方法
GAO XIAOFENG (author) / LUO DONGLIN (author) / HOU HUIJUN (author) / LIAO HONGYE (author) / HUANG HAI (author) / REN DONGXING (author)
2021-11-19
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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