1. Product Summary
Wanfeng provided prestressing anchor bars and corrugated metal ducts for the Jinan Fenghuang Road Yellow River Bridge in Shandong Province, China.
Built as a signature crossing of the Yellow River and key regional roadway artery for Jinan, the bridge’ s main span consists of a three-tower self-anchored suspension design. The 428-metre main spans are supported by towers that elevate the deck 61.7 metres above the water.
Deemed the world’s longest- span and widest three-tower self-anchored suspension bridge upon its opening January 2022, the Yellow River Bridge spans integrates roadway traffic with facilities for public transportation, rail transit, bicycles and pedestrians.
Precustomized by Wanfeng to ensure the bridge would meet structural-strength criteria as well as dimensional-accuracy and construction- coordination targets.
2. Project Details
Project: Jinan Fenghuang Road Yellow River Bridge
Location: Jinan, Shandong Province, China
River crossing: Yellow River
Overall project length: Approximately 6,683 m
Main bridge length: Approximately 1,332 m
Main span arrangement: 2 × 428 m
Bridge-deck width: 61.7 m
Structure: Three-tower self-anchored suspension bridge
Traffic arrangement: Eight road lanes with reserved rail-transit and pedestrian facilities
Opened to traffic: January 2022
Main contractor: CCCC Second Harbor Engineering Company
Steel-structure participant: China Railway Baoji Bridge Group
Wanfeng products: Prestressing anchor bars and corrugated metal ducts
3. Project Details
The Fenghuang Road Yellow River Bridge project was created to improve transportation connections between Jinan’s north and south banks of the Yellow River.
Instead of acting merely as a highway bridge, the project was planned as an all-encompassing urban transportation corridor. Large enough to support road traffic, it also allocates resources to public transit, rail travel, bicycles and pedestrians.
Engineered with three towers, double cable-planes and a self-anchor mechanism, the main suspension bridge features a span arrangement of:
70 m + 168 m + 428 m + 428 m + 168 m + 70 m
By installing 428-metre main spans, the Fenghuang Road Yellow River Bridge was able to pass over the main river channel without compromising navigation and hydraulics requirements. With a bridge deck that is 61.7 metres wide, extra difficulty was created in regards to structural design, steel fabrication and erection, as well as load distribution.
The north cross- dyke approach bridge also featured a main span of 245 metres long by implementing a continuous composite steel box-girder design.
4. Engineering Challenges
4.1 Record-Setting Structural Dimensions
The bridge has two main spans of 428 metres (1,406 ft), as well as one of the widest decks in the world. This created unique structural-load and deformation-control challenges.
The layout also featured three towers that required accurate coordination of the main cables, suspenders, steel towers, composite girders, and anchorage systems.
4.2 Steel Structure Size
China Railway Baoji Bridge Group was responsible for steel structure works that included all three steel towers, the main bridge, in-water approach structures, and the northern cross-dyke approach bridge.
It’s reported that the total steel structure workload comprised around 71,400 tonnes of steel. That’s nearly enough steel to build ten Eiffel Towers! Producing and installing steel structure components of this size necessitated meticulous production planning and precise dimensional control.
4.3 Precise Prestressing
Performance of prestressing systems is impacted by the steel tendon, duct, and anchorage components being perfectly aligned. Issues with duct deformation or leakage can impact tendon installation and later grouting.
The anchorage system itself must also be able to transfer large prestressing forces into the concrete safely.
4.4 Coordinating Construction Activities
Steel fabrication, concrete placement, prestressing activities, bridge deck construction and site assembly were all coordinated on this project.
Delivering and manufacturing components on time was critical to the schedule so that installation activities could progress without delay.
4.5 Design for Durability
The bridge, which carries traffic over China’s Yellow River, was built to last. It will be exposed to traffic loads, thermal expansion and contraction, wind, moisture and the elements for decades to come.
As a result, the bridge’s prestressing system was required to have predictable material properties, protected tendon ducts, and ensure all ducts were completely grouted following tensioning.
5.Product Solution from Wanfeng
Wanfeng provides mainly two types of prestressing products.
5.1 Prestressing Anchor Bars
Prestressing anchor bars are threaded bars used to transfer and hold prestress force in concrete structures.
In bridges, these bars can be utilized in anchorage zones, temporary or permanent prestressing systems and structural connections that need precise high-strength tension control.
Characteristics of Prestressing Anchor Bars:
Available from Wanfeng: Wanfeng can tailor the prestressing threaded bars, along with their corresponding nuts, couplers, and anchor plates, to meet specific project needs. Follow project drawings and technical specifications.
5.2 Corrugated Metal Ducts
Corrugated metal ducts serve as the pathways for inserting prestressing tendons or bars within post-tensioned concrete structures.
Typically the duct will be filled with cementitious grout after tensioning to help bond the tendon to the concrete and provide additional protection against corrosion.
Corrugation provides a mechanical key with the surrounding concrete while allowing a continuous tendon route through the member.
Specifications of Corrugated Metal Ducts:
6. Project Outcome
Highly coordinated production and supply of prestressing anchor bars and corrugated metal ducts by Wanfeng enabled completion of this challenging Yellow River crossing.
Learn more about how this project highlights Jiufu Mining’ ability to design and deliver engineered prestressing solutions for mega-bridges and other large-scale civil infrastructure.
7.Engineering Significance
The Fenghuang Road Yellow River Bridge is a notable large-span, multi-use bridge design.
As a long-span bridge with a 61.7-metre-deck and large steel-box main girder, this bridge served as an important reference project regarding design, fabrication and installation.
8. Why Choose Wanfeng?
Wanfeng produces bridge anchorage and prestressing products for bridges, tunnels, mining engineering, hydropower stations and other civil-structures.
Products we provide:
Product length/diameter/strength grade/thread type/duct size/surface treatment can be tailored to your project requirement.
Looking for prestressing products for your bridge or construction project? Reach out to Wanfeng for professional guidance, product recommendation, and custom-made production.
9.FAQ
9.1 What kind of bridge is Fenghuang Road Yellow River Bridge?
The Fenghuang Road Yellow River Bridge is a three-tower, double-cable-plane, self-anchored suspension bridge. The main spans consist of two spans of 428 metres each. The bridge deck is 61.7 metres wide.
9.2 Where is Fenghuang Road Yellow River Bridge located?
Fenghuang Road Yellow River Bridge crosses the Yellow River in Jinan, Shandong Province, China. Jinan is the provincial capital of eastern China’s Shandong Province.
9.3 What products did Wanfeng provide?
Based on the project information we have, Wanfeng supplied prestressing anchor bars and corrugated metal ducts. Quantities and installation location were not provided.
9.4 What is a corrugated metal duct used for?
A corrugated metal duct is used to provide a enclosed duct or conduit for prestressing tendon or bars embedded in concrete. The duct is typically filled with grout after tensioning to bond the tendon or bars to the concrete and provide corrosion protection.
9.5 What is a prestressing anchor bar?
A prestressing anchor bar is a high strength threaded steel bar designed to introduce or maintain compressive stresses in concrete and other structural connections. Prestressing anchor bars are typically used with compatible nuts, couplers and bearing plates.
