Bridge experts investigate the bridge of Luding County: the main body of the bridge

Cover Journalist Gou Chun

On September 5th, after the 6.8 earthquake in Luding in Sichuan, the bridge technology expert assigned by the Southwest Academy of China Sinica Scientific Research Institute of China China Railway Scientific Research Institute set up an emergency work group to the disaster area with the Chengdu Urban Management Committee Daoqiao Supervision Service Center to timely timely to Luding County, Luding County, the affected area. More than 20 municipal roads and seven cities have carried out emergency response work such as safety investigation, earthquake research, and information reporting. After investigation, it was found that there were no obvious abnormalities in the municipal roads and bridge structures investigated in the county, and slight damage to individual bridge components occurred.

There are no obvious abnormalities in the main structure of the bridge of Luding County

According to the bridge experts of the Southwest Academy of China China Railway Scientific Research Institute, the impact of earthquake on the structure of the bridge is mainly manifested as foundation and foundation destruction, pier tilt, variable position, load -bearing component cracks, displacement, fall beams, collapse, drop and other key parts Destruction.

It is understood that on September 6, the expert group conducted a safety hazard investigation of the seven cities in the county seat. On -site investigation of the key position of the bridge structure was damaged, and a "pull net" was conducted in a comprehensive investigation of the bridge. Because of the limitation of on -site conditions, they mainly observe the key parts of the bridge and use basic equipment such as crack observation and full station instruments to determine the hidden dangers of the main structure of the bridge.

After the investigation work, the emergency work group promptly feedback the investigation in a timely manner, and the post -earthquake emergency investigation report was issued as soon as possible, and effective suggestions such as related shock -related treatment, post -earthquake attention, and inspection and maintenance management were proposed. It is understood that there are no obvious abnormalities in the municipal roads and bridge structures investigated in the county. There is no obvious abnormalities. Only individual bridge components have minor shock damage. It is mainly due to the deformation of the bridge railings and the damage of some subsidiary facilities in the bridge, but these do not affect the safety of the bridge safety Through the traffic, they have suggested that the deformation railings will be replaced immediately, and at the same time, the bridge will be carefully tested to ensure the safety of the bridge.

Next, the emergency work group will continue to conduct a safety investigation of municipal facilities in accordance with the on -site arrangement. According to experts from the Bridge Institute of the Southwest Academy of the China Railway Research Institute, the safety investigation of the post -earthquake bridge should focus on the damage of the pier pillars, beams, branches, and seismic facilities, especially whether the stamping part of the bridge is abnormal (such as the foundation settlement drop , Pier pillars tilt, beams offset, etc.), collect bridge structure data for bridge managers to analyze and decision -making, help the emergency disposal of the hidden dangers of the bridge, and ensure that the bridge is safe and smooth.

There are no obvious abnormalities in the main structure of the bridge of Luding County

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