Disease and solution of concrete bridge

Common diseases of Concrete Bridges:spalling, exposed tendons, honeycomb, concrete corrosion, mesh cracks.

2018-07-31 16:24:14

Repair the cracks in the pier

Harmful cracks will not affect the bridge structure, affect the service life of bridges, accumulate over time, will lead to bridge collapse.

2018-07-30 17:35:36

Repair measures for cracks in wall and concrete beams

For cracks in concrete beams with width of 0.2-mm, besides epoxy resin pressure grouting according to the two methods, CFRP is bonded to seal the surface. Reinforced concrete beams are reinforced by CFRP sheets​ at the bottom of the mid span.

2018-07-30 17:13:25

Concrete beams strengthened with carbon fiber composite sheets

In order to study the effect of the external carbon fiber composite sheets on the shear strength of the specimens, the 12 specimens are rectangular beams with no abdominal reinforcement, and the bottom of the beam is matched with 2 18 longitudinal bars, and the size of the specimen is 2600 * 150 x 300.

2018-07-27 15:54:22

Affecting beams strengthened with bonded steel plate

Factors affecting the bearing capacity of beams strengthened with bonded steel plate: length of steel plate anchorage; historical loading; reinforcement ratio of steel bar; anchorage measures at the end of steel plate

2018-09-17 15:28:42

Strengthening of steel corrosion to concrete structure

The steel corrosion not only reduces the cross section of the steel, but also reduces the yield strength and the ultimate strength of the steel, which is one of the reasons for the reduction of the bearing capacity of the components.

2018-09-17 15:29:36

Better understanding of structural strengthening

To the beginner

2018-09-17 15:30:14

Reinforcement of brick columns by steel jacketing

It is possible to increase the bearing capacity of brick columns and greatly improve the lateral resistance of brick columns under the condition that the size of brick columns does not increase much.

2018-07-25 15:42:34

Strengthening Reinforced Concrete Beams with CFRP and GFRP

FRP can significantly improve the shear strength of beams, but the height of FRP is different, and the bearing capacity of reinforced concrete is also different. Therefore, this adverse effect should be considered in the design.

2018-07-24 18:05:21

Principles for seismic strengthening by CFRP

Because the building itself is seriously damaged, we must ensure that the structure of the building is not damaged two times during construction. So at present, CFRP reinforcement is a kind of reinforcement method that minimizes the loss of buildings. It is recommended to be widely promoted in the earthquake stricken area.

2018-07-24 17:23:57
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