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HCMCTwo expansion joints on the Phu My bridge: the artery bridge connecting District 7 and District 2 are damaged, and steel plates are currently used to temporarily prevent the fall of dust.
The two damaged sites were about 100 m apart, in the direction of District 7 to District 2, about 100 meters from the top of the bridge. There are iron bars in the two expansion joints and in the middle they are joined by waterproof rubber sheets. There is a broken iron bar in each slot, the damage causes the dust to fall.
The damaged expansion joint is about 100 m from the top of the Phu My bridge. Image: Gia minh.
Currently, Phu My Construction Investment Joint Stock Company (project investor) uses steel plates over 2m wide and 6m long for temporary shields. However, due to the high density of the car, the steel plate is inclined. Every time a heavy truck passes a damaged place, the iron plate vibrates and makes a loud sound.
“The steel plate is twisted and warped compared to the road surface, so it looks like an obstacle from a distance. Many cars don’t dare to run fast or brake quickly when they see it suddenly,” Van Cong said, cargo container driver entering the port of Cat Lai. September 10, said noon.
In July, the Road Traffic Infrastructure Management Center (Department of Transportation) together with the investor inspected the site and proposed a replacement. This is to ensure traffic safety and not affect the bridge structure. This center believes that the Phu My Bridge is large-scale and technically complex, so determining the cause as well as the direction to handle the damage requires experts or advice.
The iron plate that temporarily covers the elastic groove is damaged and deflected, at noon on September 10. Image: Gia minh.
Recently, Vice Chairman of Ho Chi Minh City People’s Committee Vo Van Hoan asked Phu My Construction Investment Joint Stock Company to quickly pass, guarantee technical regulations, design … While waiting for repair, request East position must be coordinated with the Department of Transportation to implement road safety measures …
A leader from Phu My Construction Investment Joint Stock Company said that he had instructed the relevant departments of the unit to carry out procedures to quickly repair the damage at these two locations. The company is expected to hire a foreign unit capable of designing and building cable-stayed bridges. Two expansion joints will be manufactured overseas and shipped to Vietnam. The two expansion joints will be overcome with the correct technical design as original ”, said the investor’s representative.
The expansion joint is an important element related to the operating conditions and safety of the project bearings. For the bridge, the expansion joint is the spacing of the beam to prevent cracking of the concrete surface due to the expansion process when the temperature changes. Depending on the project, there are different types of expansion joints such as thermal joints, settlement joints …
Every time a heavy truck passed by, the iron plate would vibrate again, producing a loud sound. Image: Gia minh.
Started in 2005, the Phu My bridge project linking District 2 to District 7 with a total capital of nearly 2.1 billion VND invested in the form of BOT (build-operate-transfer). When it was inaugurated on National Day 2009, this was the largest cable-stayed bridge in the country with a length of more than 2 km, the navigation clearance of 45 meters, it is considered the symbolic bridge of Ho Chi Minh City.
Gia minh
