In recent years, urban renewal work and the renovation of dilapidated and old bridges have continued to advance, and improving traffic and living conditions has always been a national plan. The increase of the load causes the deflection of the bridge to become larger, which in turn causes diseases such as crack propagation, resulting in insufficient structural bearing capacity or even danger. Therefore, structural flexural reinforcement is crucial. Ordinary carbon fiber laminate reinforcement is to paste the carbon fiber laminate on the concrete member through epoxy glue, so as to improve the bending resistance of the member.

shortcoming:

One, passive acceleration,

Second, the strength utilization rate of carbon fiber laminate is low,

Three, can not be solved, the problem of excessive deflection and cracks.

The method of external prestress reinforcement is to actively apply prestress to the existing structure by adding external prestressed steel strands to improve the stress of the original structure.

shortcoming

1) The process is complicated and the construction period is long

2) Great damage to the original structure

3) need to use large equipment

The two reinforcement methods have certain deficiencies in operability, economy and applicability

The prestressed carbon fiber laminate reinforcement system is pasted with concrete structural members through epoxy adhesive, and prestressed to form a new force balance, improve the construction bearing capacity, reduce structural deflection and deformation, and effectively reduce and seal cracks.

Advantage

1) Active reinforcement

2) Greatly improve the bearing capacity

3) The damage to the structure is relatively small

4) Effectively reduce deflection deformation and control cracks

The prestressed carbon fiber laminate researched by Horse uses less glue, more economical overall cost, and higher construction efficiency.