Method for designing and constructing prestressed section steel reinforced shear wall

Abstract

The invention discloses a method for designing and constructing a prestressed section steel reinforced shear wall. The method includes the following steps: a, determining a reinforcing section according to detection and calculation results, and selecting multiple sections of short section steel according to length of the reinforcing section, wherein multiple pegs are welded on the outer surface of the short section steel, section steel grooves are formed in the shear wall along the height direction, and local replacement grooves are formed in a wall body at the bottom of the section steel grooves; b, arranging a counterforce frame and mounting the section steel; c, pouring high-strength concrete in the local replacement grooves and maintaining, wherein a lower end plate contacts with the high-strength concrete; d, restoring original shear wall rebars; 3, applying prestress; f, erecting a formwork, pouring and maintaining; g, demounting the counterforce frame. By the above mode, the method does not need temporary supporting and is convenient in construction, construction period can be shortened greatly, original structure form is unchanged, thickness of an original shear wall is unchanged, and load-bearing capacity of the shear wall is improved remarkably.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a design and construction method of a prestressed section steel reinforced shear wall. Background technique [0002] Shear walls, also known as seismic walls, are walls in buildings or structures that mainly bear horizontal and vertical loads, and their performance directly determines the bearing capacity and structural safety of buildings or structures. [0003] In construction projects, existing building shear walls may have insufficient bearing capacity and need to be reinforced. Currently commonly used reinforcement methods and their defects are: [0004] A. Replacement concrete reinforcement method: the requirement for temporary support is high, the construction period is long, and the safety of the construction process is difficult to guarantee; [0005] B. Increased section reinforcement method: increase the thickness of the shear wall and reduce the ava...

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Problems solved by technology

[0006] C. Pasting steel plate reinforcement method: the effect of improving the bearing capacity of the shear wall is not obvious, and the construction of the anchoring end of the steel plate is difficult

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