Reinforced Concrete Beam Strengthened by Carbon Fiber Sheet and Its Strengthening Method

Abstract

The invention discloses a reinforced concrete beam reinforced with carbon fiber cloth and a strengthening method, comprising a reinforced concrete beam, the bottom tension surface of the reinforced concrete beam is provided with a carbon fiber cloth evenly pasted as a whole, and the two ends of the carbon fiber cloth are It is connected with the steel plate, and the steel plate is provided with a steel plate connection hole, and the steel plate is connected with both ends of the reinforced concrete beam through the steel plate connection hole, nuts and chemical bolts. The structure and construction are simple, and the end is fixed reliably, which effectively improves the tensile strength of the concrete beam, improves the flexural bearing capacity of the concrete beam, improves the seismic performance of the building structure and the repair effect and efficiency of the damaged structure after the earthquake, and guarantees The safety of people's lives and property.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a reinforced concrete beam reinforced with carbon fiber cloth and a reinforcement method. Background technique [0002] Reinforced concrete beams, as basic compression-bending members, are widely used in various aspects of building structures. With the passage of time, the early reinforced concrete beams have entered the stage of working with cracks. Because the early design considered the gravity load more and neglected the seismic capacity, the seismic effect is poor. With the extension of service time or once a strong earthquake occurs, reinforced concrete beams will be seriously damaged. For the sake of safety, life and property, it is necessary to strengthen the reinforced concrete beams against bending and tension. [0003] In view of the fact that most areas in my country are in earthquake-prone areas, the seismic reinforcement of building structures and ...

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Problems solved by technology

In addition, a large number of existing buildings do not meet the requirements due to load increase, natural disasters, environmental erosion, change of use, update of design standards and improvement of structural reliability requirements, etc., and they also need to be reinforced in time

[0004] At present, there is no authoritative method for strengthening reinforced concrete beams in the prior art

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