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

Segment casting yard components

1. Short-Line Match Casting and Casting Mould Units
2. Production and Working Space
• Rebar Assembly
• Prestressing Work
• Segment Touch-up/ Repair
• Ready-mixed Concrete Plant
3. Lifting Equipments
4. Storage Area

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

The formwork products, systems and design service include bridge formwork, tunnel formwork, and scaffolding.

Boyoun's business is based on a combination of production, equipment sale & rental, installation and maintenance.

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.