Add bridge health monitoring equipment, vehicle dynamic weighing and capturing equipment, and renovate the elevated ring road within the age of 30 to make it more youthful

On September 8, 2023 at 00:30, with the sound of professional cutting tools, the Shanghai Inner Ring Elevated Facilities Upgrade and Function Improvement Project officially started.

At 1:00 am on September 9, 2023, the construction of Shanghai Road and Bridge by Tunnel Corporation was carried out on the bridge deck.

The Inner Ring Elevated Road is the earliest urban expressway constructed in Shanghai, with a total length of 31 kilometers for the Puxi section. It was completed and opened to traffic in 1994. After nearly 30 years of operation, the current inner ring elevated structure has encountered problems such as aging facilities, increased operating pressure, and relatively outdated intelligent equipment. To this end, the Municipal Road Transport Center has successfully implemented a pilot upgrade and renovation project on the Siping Road to Zhengben section of the Inner Ring Elevated Road in 2022.

This year's construction will be carried out in two sections from Zhongshan North Road to Siping Road and from Zhengben Road to Zhoujiazui Road on the Inner Ring Elevated Road, with a total length of 4615 meters. It is also known as the "rejuvenation" renovation project of the Inner Ring Elevated Road in the industry.

On September 8, 2023, the builders of Shanghai Road and Bridge carried out construction on the bridge deck.

The reporter recently visited the construction site of the Inner Ring Elevated Facilities Improvement and Functional Improvement Project, which was constructed by the Municipal Road Transport Center, designed by the Tunnel Group Urban Construction Design Group, and constructed by Shanghai Road and Bridge. According to Zhang Yi, the project leader of the construction party Shanghai Road and Bridge, this year's "youthfulness" renovation project mainly includes the in-situ chiseling and construction of the main line anti-collision wall, the outsourcing of aluminum plates on the ramp anti-collision wall, the remaking of bridge deck pavement, the renovation of sound barriers, the replacement of expansion joints, the replacement of supports, the renewal of drainage facilities, and the repair of structural damage; In addition, bridge health monitoring equipment and vehicle dynamic weighing and capturing equipment have been added.

Quality inspection of ultra-high pressure water jet breaking concrete and inspection of reserved steel bar size.

For a narrow construction area that only occupies a 1.5m bridge deck, an integrated sewage collection and treatment platform will be set up during construction.

In terms of construction, it will be carried out in two time periods: day and night. During the day, occupy a road width of 1.5 meters on the bridge deck to ensure that the current number of lanes remains unchanged and meet traffic needs; At night, half of the elevated road is occupied.

At 11:30 pm on September 8, 2023, personnel and construction vehicles entered the site.

The newly installed anti-collision wall is welded and fixed to the beam body.

Temporary cable laying during construction.

Suspend the upper structure of the old anti-collision wall.

New anti-collision wall hoisting.

New anti-collision wall hoisting.

New anti-collision wall installation.

To this end, the Traffic Police Headquarters of the Shanghai Public Security Bureau also issued a notice: from September 8th to October 23rd, the main line of the inner ring elevated outer ring will be closed from 23:00 on Monday to Sunday to 6:00 the next day, and the number of lanes will remain unchanged from 6:00 to 23:00, with local lane widths compressed.

According to the traffic organization, the road will be closed after 23:00 and construction vehicles will enter.

Due to the proximity of the renovation project to residential areas and the majority of old residential areas, the project is located in the city center, with schools, commercial and residential areas as the main areas along the route. The requirements for civilized construction are much higher than other conventional projects. To this end, the project team employed a unique technique - the ultra-high pressure water jet dismantling system, and designed and manufactured wastewater filtration, purification, and collection systems to minimize the impact of noise and sewage generated during the construction process.

"The Inner Ring Elevated Road is the most important 'artery' of the circular traffic in the central city of Shanghai center. Our construction is like a surgical operation on the heart. We are not only the builders of the elevated project, but also the beneficiaries of the smooth urban roads, just like the citizens. Everyone understands and trusts each other, and we will surely return a safer and higher quality 'new artery of youth' to the public as soon as possible." Zhang Yi promises and looks forward to it.

Drill holes in the old anti-collision wall with water drills to facilitate the lifting of the dismantled anti-collision wall.

Drill holes in the old anti-collision wall with water drills to facilitate the lifting of the dismantled anti-collision wall.

Accurate measurement.

Remove the upper part of the old anti-collision wall with a diamond wire saw.

Reserve steel bars for shaping and adjustment to facilitate connection with prefabricated anti-collision steel structures.

The concrete at the root of the old anti-collision wall with ultra-high pressure water jet can retain the steel bars inside the concrete.

On September 8, 2023, construction workers were working at the junction of the main ramp.

It is reported that the project will start on September 8th and is expected to complete the outer circle construction on October 23rd. After the CIIE, we will start the construction of the inner circle and plan to complete all construction tasks by the end of the year.