Changzhou Prefabricated Slab House Reinforcement

In Changzhou, the reinforcement of prefabricated slab houses should be carried out by professional reinforcement companies using scientific methods. Common techniques include carbon fiber reinforcement, steel-bonded reinforcement, and post-installed rebar reinforcement, among others. A plan should be formulated based on the type of house damage and strictly adhere to construction specifications.

Reinforcement Technique Selection Should Match House Damage Types

Common damages in prefabricated slab houses include cracks, insufficient load-bearing capacity, and failure of node connections. Different damages require targeted reinforcement methods. Carbon fiber reinforcement is suitable for flexural or shear reinforcement of beams, slabs, and other components. It enhances structural load-bearing capacity by adhering carbon fiber sheets, featuring lightweight, high strength, and convenient construction. Steel-bonded reinforcement involves bonding steel plates to concrete using structural adhesive, suitable for beams, columns, and other components requiring significant increases in load-bearing capacity, but attention should be paid to rust prevention of steel plates. Post-installed rebar reinforcement enhances connections between new and old structures or provides local reinforcement by drilling holes in concrete, injecting adhesive, and inserting rebars, commonly used for node reinforcement or adding components.

Professional Companies Should Possess Integrated Service Capabilities

Companies engaged in prefabricated slab house reinforcement in Changzhou should possess relevant construction engineering qualifications, such as the Special Engineering (Structural Strengthening) Professional Contracting Qualification. Integrated service capabilities are crucial, including preliminary inspection and assessment (evaluating house structural safety using professional equipment), mid-term plan design (formulating technical routes based on damage types and reinforcement objectives), and post-construction implementation (strictly adhering to specifications and controlling quality). For example, a reinforcement company once addressed crack issues in a prefabricated slab floor by first detecting crack depth using infrared thermal imaging, then sealing cracks and enhancing flexural performance using carbon fiber sheets and structural adhesive, and finally verifying reinforcement effects through load tests.

Construction Specifications and Quality Control Are Core

Reinforcement construction should strictly adhere to standards such as the "Code for Design of Strengthening Concrete Structures" (GB50367) and the "Code for Acceptance of Construction Quality of Building Structure Strengthening Engineering" (GB50550). Key control points include material properties (e.g., the tensile strength of carbon fiber sheets and the bond strength of structural adhesive should meet design requirements), construction techniques (e.g., carbon fiber sheet adhesion should ensure no bubbles, and the flatness error of steel plates in steel-bonded reinforcement should be ≤2mm), and curing conditions (temperature and humidity control during structural adhesive curing). Additionally, acceptance testing should be conducted after reinforcement to ensure that the increase in structural load-bearing capacity meets design objectives.