Prestressed concrete anchor pier steel formwork of assembly type frame structure

Abstract

The invention relates to a concrete anchor pier steel formwork of an assembly type frame structure. The concrete anchor pier steel formwork comprises a concrete anchor pier steel formwork unit and a concrete anchor pier rib steel formwork. The concrete anchor pier steel formwork unit comprises main beam side plates, secondary beam side plates, a secondary beam bottom plate, steel joists, split bolts, columns, a main beam bottom plate and an anchor head portion of a concrete anchor pier. The two main beam side plates and the two secondary beam side plates form a cross shape. The concrete anchorpier rib steel formwork is located at the four intersections of the main beam side plates and the secondary beam side plates of the concrete anchor pier steel formwork unit. The main beam side platesand the secondary beam side plates are connected through the concrete rib steel formwork. The steel formwork is designed for the novel concrete anchor pier, fresh concrete is hardened into a model ofa reinforced concrete structure or component according to the position and the corresponding geometrical shape of the designed concrete anchor pier in the pouring process, and the concrete anchor pier steel formwork has the advantages of reducing site construction steps, shortening the construction period, achieving standardized management and production, ensuring the quality, and being economical and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of slope reinforcement, in particular to a prestressed concrete anchor pier steel formwork of a novel assembled frame structure and a construction method. Background technique [0002] my country is a mountainous country. Plateaus, hills and mountains account for about 70% of my country's land area. A large number of landslides, collapses and mudslides occur every year. Furthermore, when leveling the site in civil engineering, large excavation and grading of the mountain are often encountered, and the surrounding mountains need to be cut, and the cutting operation will destroy the original balance. In order to ensure the safety of the slope and its environment, support, reinforcement and protection measures must be taken for the slope. Slope bolt or anchor cable lattice reinforcement technology has significant advantages such as flexible layout, various lattice forms, convenient cross-section adjustment, cl...

AI Technical Summary

Problems solved by technology

[0004] (1) During the manufacture of cast-in-place lattice beams, due to the many processes such as slope excavation, steel formwork processing, steel bar binding, concrete pouring, and maintenance, and the overall mechanization degree of the construction process is low, the required construction period is relatively long;

[0005] (2) There are many on-site pouring procedures and many influencing factors, so that the quality of cast-in-place concrete lattice beams cannot be guaranteed;

[0006] (3) The tensioning of prestressed anchor rods or anchor cables must wait until the outer anchor structure reaches the design strength, and the overall construction period is often seriously delayed due to the maintenance of the outer anchor structure;

[0007] (4) When the traditional cast-in-place reinforced concrete lattice beam encounters a large anchoring force of the anchor cable, it may be cracked at the mid-span position, resulting in a decrease in the stiffness of the member and affecting the overall stability

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