Recently, the overturning incident of a single-pillar viaduct in Hubei has aroused widespread concern in the industry. The accident caused 4 deaths and 8 injuries, which is distressing. So how to strengthen the single-pillar viaduct?

Why do we need to reinforce the single-pillar pier safely?

In recent years, with the continuous increase of traffic flow, overloading and heavy vehicles have increased, resulting in beam torsion and deformation, uneven bearing force and voiding in the operation of single-pillar pier bridges. Endanger the safety of the bridge, and even cause safety accidents such as bridge overturning, causing greater loss of life and property.

How to strengthen single-pillar piers in general?

According to the topography, geology and construction conditions of each single-pillar pier bridge, there are the following three conventional single-pillar pier bridge reinforcement schemes:

Reinforcement by adding steel cap beams on the top of the pier

Add concrete columns on both sides of the pier

Additional tie rods on the top of the pier