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 HEAVY INDUSTRIES

Boyoun, founded in 2005, is one of China's leading manufacturers of formwork and scaffolding. In addition to the plant in Binzhou city, Shandong province, China, 6 rental bases across China mainland are operated. At Boyoun we offer various formwork, climbing, shoring and scaffolding solutions - for sale and rental - in residential and commercial high-rise construction, bridge and road engineering.

The company's annual production capacities now are increased to 50,000 tons of formwork, scaffolding and mechanical equipment. Meanwhile we also provide 40,000 tons of required formwork and scaffolding materials for rental in the last year. The company employs over 400 employees now and has a sales office in Beijing. And we continue to expand to many countries rapidly, including The United Arab Emirates, Malaysia, Singapore, Pakistan, Russia, South Africa, Brazil, America.

Boyoun is constantly developing and improving, always on the lookout for advantageous, new materials and unconventional solutions. On the basis of ISO 9001 and ISO 14001, all Boyoun products comply with the most stringent requirements in terms of quality and environment.

Our international management stands for in-depth expertise. With the knowledge and understanding of local requirements, the right formwork and scaffolding systems are developed to meet all needs worldwide.Our goal is to be even closer to our customers around the world in the future and to be able to serve them even better and faster.

Our Capacity.

At present we have to have plants growing area of over 100,000 square meters, more than 400 professional staff of the company. We will provide an integrated solutions for the global customers..

Our Equipment.

Our company has Gantry crane 13 sets,Plate shearer 5 sets,Bending machine 2 sets,Rolling machine 3 sets,Punching Machine 4 sets,Compressor 9 sets,Radial drilling machine 4 sets, CNC drilling machine 10 sets,CNC machine 15 sets, Pipe-cutting machine 6 sets,CPSM 5sets,Toothless saw machine 10 sets, Turning lathe 10 sets,Semi-auto cutting machine 6 sets,Airless spraying machine 6 sets, Its self-developed Hydraulic leveling machine 2 sets,Frame straightening machine 1 sets,Support automatic welding equipment 8 sets and other equipments,