Construction Industry

Prefabricated Steel Buildings

Pre-engineered Buildings

BBN Steel Structure can supply an assortment of prefabricated steel buildings (also known as pre-engineered steel buildings) for a wide range of applications: such as workshops, agricultural buildings, aircraft hangers, dealerships, industrial buildings, retail stores, etc.

Bridge Structure - Steel Fabrication

BBN Steel Structure has a global supply capability of heavy structural steel bridge products.  As a bridge steel fabricator, BBN has completed major bridge projects around the world - and is an expert in steel bridge girder and arch fabrication.

BBN Steel mainly supply those types of bridges:

Steel highway bridges
Railway Bridges
Movable Bridges - eg Bascule, Swing
Heavy truss structures
Multiple plate girders
Trapezoidal box girders
Suspension Bridges
Steel Arch Bridges
Temporary or Modular bridges
Special Bridges

Other components that BBN can fabricate include:

Handrails
Steel columns
Decking Formwork
All types of bridge bearings

What Are the Advantages of Structural Steel in Bridge Construction?

Resilience and Durability

With the right maintenance measures, the steel bridges manifest extraordinary resiliency and durability to withstand harsh environments and extreme natural events.

Lightweight

Steel bridge superstructures are generally lighter than other bridge superstructures of different material composition which typically result in smaller and less costly foundations. Lighter superstructures also reduce seismic forces by significant amounts which can be a major advantage in regions with high seismic activities.

Shorter Construction Period

Due to their modular design, steel bridge structures can be built quicker than employing conventional construction methods. In most instances, steel components and other smaller elements are fabricated off-site, simultaneously with other work scopes and then transported to the job site. Assembled in modules or sections of calculated weight, launching and installation of the bridge parts such as beams and girders can be done with ease, in matter of hours.

Green Building Material

Steel is one of the materials that are certified under the Green Buildings Rating System such as LEED (Leadership in Energy and Environmental Design). It is considered highly sustainable because it can be re-used repeatedly and recycled unlimited times without degradation of its mechanical properties.

Since the wide production and usage of steel in various industries, overall carbon emission was found to be reduced by at least 36%. Steel production requires lesser energy, produces lesser waste, does not release harsh chemicals or toxins, and can be easily retrieved. Steel simply has many ways of minimizing environmental impacts.

Quality

Steel bridge components are fabricated in highly regulated conditions and controlled environments such as in shops and warehouses ensuring high quality and degree of workmanship.

High surface quality and highly defined lines and edges of steel also allows easier and effective implementation of inspection and quality control.

Maintenance

When required, steel bridges can be repaired while in service, and most probably not requiring complete replacement. Components can be strengthened, moved, replaced, or modified without closing the bridge to traffic.

All components and members of a steel bridge are visible, permitting easy detection of damages or signs of deterioration. Since all members are accessible, maintenance works like re-painting are not really complicated.

Complex Geometry

Steel bridges are not just strong yet durable structures that connects societies. Long ago, bridges have been fundamentally aestheticized and transformed into symbolic architectural landmarks and neofuturistic sculptural designs giving unique qualities to the urban and natural landscape. Structural steel bridge components can be fabricated and erected to unlimited ideas of complex geometrical configurations.

Modification and Adaptability

Steel bridge can be modified to adapt socio-economic changes like deck widening to address increasing volume of traffic, or re-configuration of its structural integrity to cope up with changing load and weather conditions. Other materials do not have the same adaptability and oftentimes require replacement for new loadings or changes in configuration.

Thanks to the weldability of steel which facilitates easier connections among structural steel members from different directions and angles.

Long-span Construction

Structural steel bridge has the capability of covering a single span of over 500 feet, in the form of plate girders, tied-arches, suspension bridges, cable-stayed bridges, and trusses. The world's longest bridge span is so far recorded by a suspension steel bridge with a length of 1.9 kilometers.

The ability of steel bridge to stretch over longer spans eliminates extreme difficulties of constructing foundations in bodies of water, mountains, and protected natural areas. The elimination of expensive foundation works also means avoidance of negative impact to environment and wildlife.