Study on Equal Strength Substitution Method Applied to External Bonded Reinforcement Technology of Concrete Beams
|School||Northeast Forestry University|
|Keywords||Carbon fiber cloth Bonded steel plates Concrete beams Reinforcement And other strong replacement|
In modern society , it is the security of the buildings , the applicability and durability requirements continuously enhance , but due to the impact of the social changes in demand , the improvement of the design standards and a variety of natural disasters and other factors , resulting in the building structure damage affect the service life of great significance , therefore reinforcement of buildings . Traditional method of reinforcement , but because of its many shortcomings , it is paste the CFRP reinforced Act and paste steel reinforcement method has been widely used in the field of engineering reinforcement , and the formation of a more mature reinforcement theory and technology . Paste carbon fiber cloth with paste steel reinforcement methods , engineering and technical personnel should be used reinforced concrete structure design specification \required reinforced area of difference , using strong substitution method to calculate the amount of carbon fiber cloth steel reinforcement required . Therefore , application of research for strong substitution method to paste carbon fiber cloth bonded steel plates reinforced concrete beam has a certain significance. This paper describes the characteristics and significance of the reinforced concrete structure reinforced . And reinforced concrete structure reinforcement method focuses on the characteristics of the outside sticky reinforcement technology as well as domestic and foreign applications Research . Finally , by adjusting the initial ratio of reinforcement and reinforced moment design values ??, respectively, using the strong replacement law and norms calculations on a large number of single- Reinforced Rectangular concrete beams reinforced study strong substitution method to paste carbon fiber cloth with the paste the steel reinforcement in the concrete beam applicability . The initial reinforcement ratio , moment design value , and reinforced concrete strength grade on the impact of the strong replacement law applicable range , the After the contrast strong replacement law norms calculation method calculated the amount of carbon fiber cloth and steel plates dosage , the the initial reinforcement ratio , and other relations between the strong replacement law and norms as calculated by the calculation of carbon fiber sheet area or leaf area ratio and reinforced moment design value of the initial ultimate moment value ratio of the three . Eventually drawn strong replacement law is not generally applicable , only within a certain range , this method is applicable .