15 minutes to hoist the first precast pier column of this year! On March 22, at the second bid section of the East access elevated project at the intersection of Changchun North Road and dongjinchang Road, the staff operated a crawler crane to lift the Precast Pier with a height of 9.5m and a weight of 67 tons to the reserved position.

Fabricated bridge technology has the characteristics of high construction quality, short construction period and small environmental impact.

The installation accuracy shall be strictly controlled within 2mm.

The East approach elevated project basically adopts the method of “factory prefabrication + on-site hoisting” from the column, bent cap to the upper beam and slab structure.

Due to the large amount and difficulty of construction, the company plans and organizes scientifically in advance to ensure the orderly progress according to the time node.

On the day of assembling the pier column like “building blocks”, on the second bid section of the East access elevated project at the intersection of Changchun North Road and dongjinchang Road, on the boom of a 260 ton crawler crane, more than a dozen thick steel wire rope hooks firmly “grasp” the “body” of a precast pier column.

How to splice them together?” In response to the reporter’s questions, Hou feifu explained that the four round holes are grouting holes, which are connected.

15 minutes later, the first precast pier column of the East access elevated project was successfully hoisted this year.

Wen Chengjun said that according to the plan, six to eight precast piers can be installed in one day.

“Building blocks” in front and “building blocks” in the rear.

At present, the base is completed on the “one-stop” assembly line with intelligent control from reinforcement cutting, concrete pouring, forming, curing and finished product delivery.

How can the precast pier columns produced in industrialized and standardized factories be assembled quickly on the construction site? The reporter paid a visit on the spot.

The elevated main line crosses the East Second Ring Road and lands.

When Liu Yin measured the data, the scale bar would show a red dot.

We constantly adjust the levelness, verticality and elevation of the pier column through the steel pipe.

After the completion of the project, Tuwu expressway will be accessible to the new terminal of Urumqi airport reconstruction and expansion project.

Throughout the hoisting process, the commander, driver, surveyor and construction workers cooperate with each other to ensure that the grouting sleeve opening at the lower end of the pier column is perfectly spliced with the embedded reinforcement above the bearing platform, and then the concrete is poured as a whole through the grouting hole.

When the pier column is placed in the reserved position, four construction workers insert the steel pipe into the four round holes under the pier column and start to adjust continuously.

This year, it is planned to complete the on-site hoisting of more than 760 precast columns.

Xie Xinwei, executive deputy general manager of shengtianlong company of Municipal Urban Investment Group, said that there are three important construction nodes of the project this year, namely, the upper cross Urumqi Zhun railway, Tuwu Da interchange and Anningqu interchange.

The reporter saw that a white scale bar was pasted at the top of the pier column.

“There are steel bars under the pier column and above the bearing platform.

On March 22, with the full resumption of construction of dongjinchang viaduct, the first cast bridge in Xinjiang, the project officially entered the stage of assembly.

At this time, the surveyor Liu Yinzheng corrected the verticality of the column through the theodolite equipment.

The ground road is connected with the East extension of the main road in the north of the city, and the main line of the bridge is about 12.7 kilometers.

It is reported that the columns, bent caps, box girders, anti-collision walls and other components required for the east entrance elevated are intensively produced in the assembly base more than 30 kilometers away.

The first phase of the project is planned to be completed within the year.

Compared with traditional construction methods, it is more efficient, standard, energy-saving and environmental friendly.

“The preparation work has been completed and the formal hoisting is started!” At 12:30, the crawler crane slowly lifted the Precast Pier Column with a height of 9.5 meters and a weight of 67 tons.

As a key project of the airport economic zone, the East access elevated road starts from Anningqu road in the west, and passes through nodes such as Wuzhun railway, Beijing North Road, Changchun North Road, Dongzhan Road, Tuwu Expressway and the East Second ring road.

The 8.9-kilometer viaduct from Anning canal to Tuwu University in the first phase of the project will be completed within the year, and it is expected to be accessible in the second half of next year.

If the traditional construction is followed, it will take two days to complete one pier.

Lifting Anchor

The construction is planned to be completed by the end of July, the first ten days of November and the middle of November respectively.

On March 22, at the second bid section of the East access elevated project at the intersection of Changchun North Road and dongjinchang Road, the staff operated a crawler crane to lift the Precast Pier with a height of 9.5m and a weight of 67 tons to the reserved position.

Text / picture: Urumqi evening news all media reporter Wang Yuanyuan and Chen Yan some pictures are from more industry news on the Internet, which can be clicked“.

Wen Chengjun, production manager of Shanghai Municipal General Hospital and dongjinchang elevated project, said that the trial hoisting has been carried out twice before to ensure that the accuracy of precast component installation is strictly controlled within 2mm.

At the same time, the project has a large number of hoisting and heavy weight.

and Xinjiang Communications Construction Group Co., Ltd.

The assembly rate reaches 90%, and the requirements for construction accuracy are particularly high.

“In the hoisting process, we must always observe the data to ensure that the pier column is on an axis.” Liu Yin said.

the project adopts the general contracting construction mode of design and construction.

The project is invested and constructed by shengtianlong company of urban investment group, and jointly implemented by Shanghai Municipal Engineering Design and Research Institute (Group) Co., Ltd.

On March 22, at the construction site of the East access elevated project at the intersection of Changchun North Road and dongjinchang Road, Liu Yin, a surveyor of Xinjiang Communications Construction Group, was correcting the verticality of the column.

How to ensure the hoisting safety of precast components on site is also the focus of the project.

The operators will be hoisted at the intersection of Changchun east road and Changchun east road with a height of 22.67t, and will be hoisted into the construction site of the 2nd elevated road on September 9.