What is precast segmental box girder

The bridge viaduct is divided into small segments, that are prefabricated in the good quality control casting yard, then, delivered to install by good erection equipment.

Advantages and Benefits

1. Construction Simplicity
• easier installation of external post-tensioned tendons

2. Time Savings/Cost Effectiveness
• precast segment to be prefabricated and stored at casting yard while foundation and sub-structure are being built.
• by using efficient erection method and equipment, the rapid installation of viaduct can be achieved.

3. Quality Control Q - A/QC
• precast segment to be produced in factory-manner condition w/ good quality control.
• minimum interruption natural impacts such as bad weather, rain.
• minimum waste of material
• good precision in production
4. Inspection and Maintenance
• external prestressing tendons can be easily inspected and repaired if required.
• maintenance program can be scheduled.

Key componets

1. Casting Yard and Segment Production
(Geometry Control Program and Software)
2. Segment Erection/ Installation and Equipments

The Teheran expressway project has begun its construction in the early a few decades ago.
The project total length is 140km, but stopped only for 30km.

Boyoun supplied
Segmental assembly box girder formwork

Tianjin–Baoding intercity railway project.

Tianjin–Baoding intercity railway, also known as Tianjin-Baoding Passenger Line,the railway length is 158 km and with a maximum design speed of 250 km. Most of the new trackage will be on an elevated viaduct, accounting for 65.4% of the line of the being on bridges.

Boyoun supplied
Segmental assembly box girder formwork

ABOUT

Boyoun is a Chinese manufacturer and supplier of formwork and scaffolding used in civil engineering and building construction. Its factory are based in Binbei District, Binzhou, and 6 logistics centers across China are operated.

Boyoun was founded in 2006, to manufacture the formwork products for girder bridge. The company's operations in China have grown rapidly in the past decade with the country becoming its largest market.

Boyoun works under the quality standard ISO 9001:2008 certification. The scope covers the activities of : sales, rental and maintenance of formwork equipment, including the design, the manufacture, the assembly and the distribution of our systems

Products

In Boyoun we invest heavily in R&D in order to add value to the industry. The Boyoun engineering department has created more than 40 patents and utility models.

This has enabled the implementation and industrialization process of "cast in place" concrete structures, in addition to providing added value in security and ergonomics.

Boyoun Comprehensive Service

Boyoun strives to be one of the most recognized companies in its industry due to its comprehensive service capacity.
This output should be yield as a result of the quality of the company's human team, the range of solutions and services that Boyoun offers to its clients and its business management focused on total quality.

Boyoun is a professional high-tech enterprise, which is dedicated to the R&D, manufacturing, selling, leasing and consulting of formworks for road & bridge construction equipment. The company was established in 2005.

Boyoun service our clients with PCY Design Drawings, Formwork Design and Manufacturing, Technical Consulting and Site Guidance.

Main products covers.

More than 3 state grade certificates
More than 40 patents
More than 10 series main products
More than 10 government and project awards